A humid continental climate is a climatic region defined by Russo-German climatologist Wladimir Köppen in 1900, typified by four distinct seasons and large seasonal temperature differences, with warm to hot (and often humid) summers, and cold (sometimes severely cold in the northern areas) and snowy winters. Precipitation is usually distributed throughout the year, but often these regions do have dry seasons. The definition of this climate in terms of temperature is as follows: the mean temperature of the coldest month must be below 0 °C (32.0 °F) or −3 °C (26.6 °F) depending on the isotherm, and there must be at least four months whose mean temperatures are at or above 10 °C (50 °F). In addition, the location in question must not be semi-arid or arid . The cooler Dfb , Dwb , and Dsb subtypes are also known as hemiboreal climates. Although amount of snowfall is not a factor used in defining the humid continental climate, snow during the winter in this type of climate is almost a guarantee, either intermittently throughout the winter months near the poleward or coastal margins, or persistently throughout the winter months elsewhere in the climate zone.
47-533: Anoka County ( / ə ˈ n oʊ k ə / ə- NOH -kə ) is the fourth-most populous county in the U.S. state of Minnesota . As of the 2020 census , its population was 363,887. The county seat and namesake of the county is the city of Anoka , which is derived from the Dakota word anoka meaning "on (or from) both sides", referring to its location on both banks of the Rum River . The largest city in
94-685: A Csa climate well inland to ensure hot summers and cold winters. They are generally found in the highly elevated areas of south-eastern Turkey ( Hakkâri ), north-western Iran, northern Iraq, parts of Central Asia , parts of the High Atlas mountain range in central Morocco and very small parts of the Intermountain West in the United States. This climate zone does not exist at all in the Southern Hemisphere, where
141-605: A center of fur trade and logging as French and French Canadian communities grew in the cities of Anoka and Centerville . Organized in 1857, the county's southern border eventually met Minneapolis and has become a predominantly suburban area following the construction of Interstate 35W . The county is home to local Twin Cities destinations such as the Heights Theater in Columbia Heights and Northtown Mall and
188-614: A classification). More extreme and inland humid continental climates, sometimes known as "hyper-continental" climates, are found in northeast China , southern Siberia , Mongolia , Kazakhstan , most of the southern interior of Canada , and the Upper Midwest , where temperatures in the winter resemble those of adjacent subarctic climates (with long, drier, generally very cold winters) but have longer and generally warmer summers (in occasional cases, hot summers). A more moderate variety, found in places like Honshu , east-central China,
235-518: A hot-summer humid continental climate zone ( Dfa in the Köppen climate classification ), typical of southern parts of the Upper Midwest , and is situated in USDA plant hardiness zone 4b. As is typical in a continental climate, the difference between average temperatures in the coldest winter month and the warmest summer month is great: 60.1 °F (33.4 °C). In recent years, average temperatures in
282-516: A marked reduction in wintry precipitation, which increases the chances of a wintertime drought ( w ). Snowfall occurs in all areas with a humid continental climate and in many such places is more common than rain during the height of winter. In places with sufficient wintertime precipitation, the snow cover is often deep. Most summer rainfall occurs during thunderstorms , and in North America and Asia an occasional tropical cyclone (or
329-739: A subarctic climate. In the Southern Hemisphere , it exists in well-defined areas only in the Southern Alps of New Zealand , in the Snowy Mountains of Australia in Kiandra, New South Wales and the Andes Mountains of Argentina and Chile . Since climate regimes tend to be dominated by vegetation of one region with relatively homogenous ecology, those that project climate change remap their results in
376-526: A thermal profile, but because of semi-arid precipitation portions of it are grouped into the BSk category. In Europe , it is found in much of Central Europe : Germany (in the east and southeast part of the country), Austria (generally below 700 m (2,297 ft)), Poland , Czech Republic , Slovakia , Hungary (generally above 100 m (328 ft)), Croatia (mostly Slavonia region), in much of Eastern Europe : Ukraine (the whole country except
423-521: Is found in northern Kazakhstan , southern Siberia , parts of Mongolia , northern China , and highland elevations in the Koreas . Like its hot-summer counterpart, these climates are typically dry in the winter and bitterly cold due to the Siberian High (often with winter temperatures comparable to their nearby subarctic climates ), while summers are warm and long enough to avoid classification as
470-415: Is less extreme than the most inland hyper-continental variety. Using the Köppen climate classification , a climate is classified as humid continental when the temperature of the coldest month is below 0 °C [32.0 °F] or −3 °C [26.6 °F] and there must be at least four months whose mean temperatures are at or above 10 °C (50 °F). These temperatures were not arbitrary. In Europe,
517-565: Is less seasonally uniform in the west. The western states of the western United States (namely Montana , Wyoming , parts of southern Idaho , most of Lincoln County in Eastern Washington , parts of Colorado , parts of Utah , isolated parts of northern New Mexico , western Nebraska , and parts of western North and South Dakota ) have thermal regimes which fit the Dfa climate type, but are quite dry, and are generally grouped with
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#1732775447972564-724: Is noted during the autumn of deciduous forests. In the poleward direction, these climates transition into subarctic climates featuring short summers (and usually very cold winters) allowing only conifer trees. Moving equatorword, the hot-summer continental climates grade into humid subtropical climates (chiefly in North America and Asia) while the warm-summer continental climates grade into oceanic climates (chiefly in Europe), both of which have milder winters where average temperatures stay above 0°C (or -3°C). Some continental climates with lower precipitation (chiefly in Central Asia and
611-444: Is now Minnesota. Another fifteen counties are named after physical geographic features, and the remainder for politicians. The FIPS county code is the five-digit Federal Information Processing Standard (FIPS) code which uniquely identifies counties and county equivalents in the United States. The three-digit number is unique to each individual county within a state, but to be unique within the entire United States, it must be prefixed by
658-701: Is to be found in northern China including Manchuria and parts of North China , south-east Russia , and over much of the Korean Peninsula ; it has the Köppen classification Dwa . Much of central Asia , northwestern China , and southern Mongolia has a thermal regime similar to that of the Dfa climate type, but these regions receive so little precipitation that they are more often classified as steppes ( BSk ) or deserts ( BWk ). Dsa climates are rare; they are generally restricted to elevated areas adjacent to mid-latitude Mediterranean climate regions with
705-698: The Black Sea coast), Belarus , Russia (mostly central part of European Russia ), south and central parts of the Nordic countries not bathed by the Atlantic Ocean or North Sea : Sweden (historical regions of Svealand and Götaland ), Denmark , Finland (south end, including the three largest cities ), Norway (most populated area), all Baltic States : Estonia , Latvia , Lithuania and also in parts of: Romania (generally above 100 m (328 ft)), Bosnia and Herzegovina , Turkey and in
752-482: The Cairngorm Mountains of Scotland , (generally above 100 m (328 ft)). It has little warming or precipitation effects from the northern Atlantic. The cool summer subtype is marked by mild summers, long cold winters and less precipitation than the hot summer subtype; however, short periods of extreme heat are not uncommon. Northern Japan has a similar climate. In Asia, this climate type
799-484: The Dfa climate type is present near the Black Sea in southern Ukraine , the Southern Federal District of Russia , southern Moldova , Serbia , parts of southern Romania , and Bulgaria , but tends to be drier and can be even semi-arid in these places. In East Asia, this climate exhibits a monsoonal tendency with much higher precipitation in summer than in winter, and due to the effects of
846-538: The Korean Peninsula , parts of Eastern Europe , parts of southern Ontario , much of the American Midwest , and the Northeast US , the climate combines hotter summer maxima and greater humidity (similar to those found in adjacent humid subtropical climates ) and moderately cold winters and more intermittent snow cover (averaging somewhat below freezing, too cold for a more temperate classification), and
893-728: The National Sports Center in Blaine . Anoka County was organized by an act of the Minnesota Territorial Legislature on May 23, 1857, the year prior to Minnesota's admission to the Union . It was formed from parts of Ramsey County and Benton County ; the Rum River previously formed the line between the two counties. The boundaries were mainly the same as they are now, except for a small part of
940-400: The 106,428 households, 39.9% had children under 18 living with them, 60.7% were married couples living together, 9.8% had a female householder with no husband present, and 25.4% were not families. About 19.3% were made up of individuals, and 5.3% had someone living alone who was 65 or older. The average household size was 2.77, and the average family size was 3.19. The county's age distribution
987-591: The Canadian Prairie Provinces and below 40°N in the high Appalachians . In Europe, this subtype reaches its most northerly latitude in Bodø at the 67°N . High-altitude locations such as Flagstaff, Arizona , Aspen, Colorado and Los Alamos, New Mexico in the western United States exhibit local Dfb climates. The south-central and southwestern Prairie Provinces also fits the Dfb criteria from
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#17327754479721034-517: The Republican presidential candidate from 2000 onward, though with the margins remaining within 3% outside of 2004 and 2016. However, incumbent Democratic-Farmer-Labor Senator Amy Klobuchar defeated Jim Newberger by over 20,000 votes here in the 2018 midterms; Klobuchar also won this county in 2006, 2012, and 2024. Despite this, Republican Karin Housley narrowly defeated Democrat Tina Smith in
1081-571: The US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race. As of the census of 2010, 330,844 people were in the county. As of the census of 2000, 298,084 people, 106,428 households, and 79,395 families resided in the county. The population density was 705 per square mile (272/km). The 108,091 housing units had an average density of 256 per square mile (99/km). At
1128-547: The Western United States) grade into semi-arid climates with similar temperatures but low precipitation. A hot summer version of a continental climate features an average temperature of at least 22 °C (71.6 °F) in its warmest month. Since these regimes are restricted to the Northern Hemisphere, the warmest month is usually July or August. High temperatures during the warmest month tend to be in
1175-488: The area that is now Ramsey County. They settled on the Rum River and more people were attracted to the area now called Anoka. The Mississippi River flows southeasterly along the county's southwestern boundary. The Rum River flows southerly through the western part of the county, discharging into the Mississippi at the county's southwestern boundary. The terrain consists of low, rolling, wooded hills. The terrain slopes to
1222-420: The central and northeastern portions of North America , Europe , and Asia . Occasionally, they can also be found at higher elevations above other more temperate climate types. They are rare in the Southern Hemisphere , limited to isolated high altitude locations, due to the larger ocean area at that latitude, smaller land mass, and the consequent greater maritime moderation. In the Northern Hemisphere, some of
1269-459: The classification symbol defines seasonal rainfall as follows: while the third letter denotes the extent of summer heat: Within North America, moisture within this climate regime is supplied by the Great Lakes , Gulf of Mexico and adjacent western subtropical Atlantic . Precipitation is relatively well distributed year-round in many areas with this climate ( f ), while others may see
1316-675: The concurrent Senate special election in 2018, despite Smith winning the overall election by a margin over 10 points. As of April 2023: School districts include: 45°16′N 93°14′W / 45.27°N 93.24°W / 45.27; -93.24 List of counties in Minnesota There are 87 counties in the U.S. state of Minnesota . There are also several historical counties . On October 27, 1849, nine counties were established: Benton , Dahkotah , Itasca , Ramsey , Mahkahta, Pembina , Wabasha , Washington , and Wahnata . Six of these names still exist. With
1363-425: The continents either do not penetrate low enough in latitude or taper too much to have any place that gets the combination of snowy winters and hot summers. Marine influences are very strong around 40°S and such preclude Dfa , Dwa , and Dsa climates from existing in the southern hemisphere. Also known as hemiboreal climate , areas featuring this subtype of the continental climate have an average temperature in
1410-538: The county is Blaine , the tenth-largest city in Minnesota and the sixth-largest Twin Cities suburb. Anoka County comprises the north portion of the Minneapolis–Saint Paul statistical area , the largest metropolitan area in the state and the 16th-largest in the United States with about 3.64 million residents. The county is bordered by the counties of Isanti on the north, Chisago and Washington on
1457-572: The county seat of Anoka have ranged from a low of 5 °F (−15 °C) in January to a high of 81 °F (27 °C) in July, although a record low of −50 °F (−46 °C) was recorded in January 2019 and a record high of 103 °F (39 °C) was recorded in July 1988. Average monthly precipitation ranged from 0.87 inches (22 mm) in February to 4.45 inches (113 mm) in July. Note:
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1504-404: The county was $ 23,297. About 2.90% of families and 4.20% of the population were below the poverty line , including 4.90% of those under age 18 and 4.50% of those age 65 or over. Anoka County was once one of the most Democratic suburban counties in any metropolitan area nationwide and one of the rare few to have trended Republican in the 21st century. On a national level, Anoka County has voted for
1551-585: The east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest. The Rum River cuts through the county and was the site of many early European settlements. It was a common route to the Mille Lacs Lake , the spiritual homeland of the Ojibwe people. Father Louis Hennepin traveled the river in his first exploration of the region. The area became
1598-464: The foundation of Kittson County on March 9, 1878, Pembina County no longer existed. When Minnesota was organized as a state, 57 of the present 87 counties were established. The last county to be created was Lake of the Woods County in 1923. The names of many of the counties allude to the long history of exploration. Over ten counties are named for Native American groups residing in parts of what
1645-526: The high 20s to low 30s °C (80s °F), while average January afternoon temperatures are near or well below freezing. Frost-free periods typically last 4 to 7 months in this climate regime. Within North America , this climate includes portions of the central and eastern United States from east of 100°W to south of about the 44°N to the Atlantic . Precipitation increases further eastward in this zone and
1692-439: The humid continental climate covers a much larger area than the hot subtype. In North America, the climate zone covers from about 42°N to 50°N latitude mostly east of 100°W , including parts of Southern Ontario , the southern half of Quebec , The Maritimes , and Newfoundland , as well as the northern United States from eastern North Dakota east to Maine . However, it can be found as far north as 54°N , and further west in
1739-474: The humid continental climates, typically in around Hokkaido , Sakhalin Island , northeastern mainland Europe , Scandinavia , Nova Scotia , and Newfoundland are closer to the sea and heavily maritime-influenced and comparable to oceanic climates , with relatively cool summers, significant year-round precipitation (including high amounts of snow) and winters being just below the freezing mark (too cold for such
1786-537: The remnants thereof). Though humidity levels are often high in locations with humid continental climates, the "humid" designation means that the climate is not dry enough to be classified as semi-arid or arid . By definition, forests thrive within this climate. Biomes within this climate regime include temperate woodlands, temperate grasslands, temperate deciduous or evergreen forests, coniferous forests, and coniferous swamps. Within wetter areas, maple , spruce , pine , fir , and oak can be found. Fall foliage
1833-435: The south and east; its highest point is a small hillock 1.2 miles (1.9 km) east of the county's northwest corner, at 1,100 ft (340 m) ASL. Otherwise the terrain's highest point is along the western part of the north boundary line, at 1,083 ft (330 m) ASL. The county has a total area of 446 square miles (1,160 km), of which 23 square miles (60 km) (5.2%) are covered by water. Anoka County has
1880-603: The southeastern tip along the Mississippi River and at the south, formerly known as Manomin County . It was a small portion that connected to Ramsey and occupied one-third of the congressional township. It was then attached to Anoka County by constitutional amendment November 2, 1869. It became known as Fridley in 1879. The first European descendants to explore what is now Anoka County were Franciscan friar Louis Hennepin and his party. Fur traders soon began to settle in
1927-673: The state code. This means that, for example, the number 001 is shared by Aitkin County, Minnesota , Adams County, Wisconsin , and Adair County, Iowa . To uniquely identify Aitkin County, Minnesota, one must use the state code of 27 plus the county code of 001; therefore, the unique nationwide identifier for Aitkin County, Minnesota is 27001. The links in the column FIPS County Code are to the Census Bureau Info page for that county. Humid continental climate Humid continental climates are generally found between latitudes 40° N and 60° N , within
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1974-585: The steppe ( BSk ) climates. In the eastern and Midwestern United States, Pennsylvania , Ohio , Illinois , Indiana , southern New York , most of Connecticut and Rhode Island , and eastern Massachusetts fall into the hot-summer humid continental climate. In Canada, this climate type exists only over portions of Southern Ontario . In the Eastern Hemisphere, this climate regime is found within interior Eurasia and east-central Asia. Within Europe,
2021-488: The strong Siberian High much colder winter temperatures than similar latitudes around the world, however with lower snowfall, the exception being western Japan with its heavy snowfall. Tōhoku , between Tokyo and Hokkaidō and Western coast of Japan also has a climate with Köppen classification Dfa , but is wetter even than that part of North America with this climate type. A variant which has dry winters and hence relatively lower snowfall with monsoonal type summer rainfall
2068-402: The time of the 2000 Census, the racial makeup of the county was 93.64% White, 1.60% African American , 0.70% Native American, 1.69% Asian , 0.67% from other races, and 1.71 percent from two or more races; 1.66% of the population were Hispanics or Latinos of any race. The 2000 Census found 30.2% were of German , 14.3% Norwegian , 9.0% Swedish , 7.3% Irish , and 5.9% Polish ancestry. Of
2115-435: The warmest month below 22 °C (72 °F). Summer high temperatures in this zone typically average between 21–28 °C (70–82 °F) during the daytime and the average temperatures in the coldest month are generally well or far below the −3 °C (27 °F) (or 0 °C (32.0 °F)) isotherm. Frost-free periods typically last 3–5 months. Heat spells lasting over a week are rare. The warm summer version of
2162-455: The −3 °C (27 °F) average temperature isotherm (line of equal temperature) was near the southern extent of winter snowpack . In the United States, it is more common to use the 0 °C [32.0 °F] isotherm instead. The 10 °C (50 °F) average temperature was found to be roughly the minimum temperature necessary for tree reproduction and growth. Wide temperature ranges are common within this climate zone. Second letter in
2209-435: Was 28.9% under 18, 8.3% from 18 to 24, 34.1% from 25 to 44, 21.6% from 45 to 64, and 7.1% who were 65 or older. The median age was 34 years. For every 100 females, there were 101.10 males. For every 100 females 18 and over, there were 99.30 males. The median income for a household in the county was $ 57,754, and for a family was $ 64,261. Males had a median income of $ 41,527 versus $ 30,534 for females. The per capita income for
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