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35-790: New Britain Township was founded in 1723. The Township was comprised more than 15,000 acres and included land which is now occupied by Chalfont Borough and New Britain Borough as well as the later established Doylestown Township. The Township currently encompasses 14.7 square miles (9900 acres). According to historical research conducted by Township volunteers, it is estimated that the Lenni Lenape Indians arrived in New Britain Township as early as 1397. The Morgan James Homestead and Pine Valley Covered Bridge are listed on

70-756: A connection with the Doylestown DART bus to Doylestown at Delaware Valley University . Most of the township is in the Central Bucks School District , while a small portion in the southwest corner is in North Penn School District . According to the A. W. Kuchler U.S. potential natural vegetation types, New Britain Township, Pennsylvania would have an Appalachian Oak ( 104 ) vegetation type with an Eastern Hardwood Forest ( 25 ) vegetation form. Morgan James Homestead The Morgan James Homestead

105-494: A gable roof was built circa 1840. Also located on the property is a large Pennsylvania bank barn . It was added to the National Register of Historic Places in 1977. Heat index The heat index ( HI ) is an index that combines air temperature and relative humidity , in shaded areas , to posit a human-perceived equivalent temperature, as how hot it would feel if the humidity were some other value in

140-404: A heat index calculation will return a number equal to or lower than the air temperature (a lower heat index is generally considered invalid), varies with temperature and is not linear. The threshold is commonly set at an arbitrary 40%. The heat index and its counterpart the humidex both take into account only two variables, shade temperature and atmospheric moisture (humidity), thus providing only

175-424: A hot-summer, wet all year, humid continental climate ( Dfa ). Dfa climates are characterized by at least one month having an average mean temperature ≤ 32.0 °F (≤ 0.0 °C), at least four months with an average mean temperature ≥ 50.0 °F (≥ 10.0 °C), at least one month with an average mean temperature ≥ 71.6 °F (≥ 22.0 °C), and no significant precipitation difference between seasons. During

210-428: A limited estimate of thermal comfort . Additional factors such as wind, sunshine and individual clothing choices also affect perceived temperature; these factors are parameterized as constants in the heat index formula. Wind, for example, is assumed to be 5 knots (9.3 km/h). Wind passing over wet or sweaty skin causes evaporation and a wind chill effect that the heat index does not measure. The other major factor

245-1989: A model of the human body. This equation reproduces the above NOAA National Weather Service table (except the values at 90 °F (32 °C) & 45%/70% relative humidity vary unrounded by less than ±1, respectively). H I = c 1 + c 2 T + c 3 R + c 4 T R + c 5 T 2 + c 6 R 2 + c 7 T 2 R + c 8 T R 2 + c 9 T 2 R 2 {\displaystyle \mathrm {HI} =c_{1}+c_{2}T+c_{3}R+c_{4}TR+c_{5}T^{2}+c_{6}R^{2}+c_{7}T^{2}R+c_{8}TR^{2}+c_{9}T^{2}R^{2}} where c 1 = − 42.379 , c 2 = 2.049 015 23 , c 3 = 10.143 331 27 , c 4 = − 0.224 755 41 , c 5 = − 6.837 83 × 10 − 3 , c 6 = − 5.481 717 × 10 − 2 , c 7 = 1.228 74 × 10 − 3 , c 8 = 8.5282 × 10 − 4 , c 9 = − 1.99 × 10 − 6 . {\textstyle {\begin{aligned}c_{1}&=-42.379,&c_{2}&=2.049\,015\,23,&c_{3}&=10.143\,331\,27,\\c_{4}&=-0.224\,755\,41,&c_{5}&=-6.837\,83\times 10^{-3},&c_{6}&=-5.481\,717\times 10^{-2},\\c_{7}&=1.228\,74\times 10^{-3},&c_{8}&=8.5282\times 10^{-4},&c_{9}&=-1.99\times 10^{-6}.\end{aligned}}} The following coefficients can be used to determine

280-584: A northwest-southeast alignment along the northeastern edge of the township. SEPTA Regional Rail 's Lansdale/Doylestown Line passes through New Britain Township, with the Chalfont station and the New Britain station located within proximity to the township. Bucks County Transport operates the DART West bus that serves New Britain Township, which runs weekdays through Chalfont and New Britain to

315-482: A thicker cloud cover develops, reducing the amount of direct sunlight reaching the surface. Thus, there is an inverse relationship between maximum potential temperature and maximum potential relative humidity. Because of this factor, it was once believed that the highest heat index reading actually attainable anywhere on Earth was approximately 71 °C (160 °F). However, in Dhahran , Saudi Arabia on July 8, 2003,

350-535: Is also located in the township. Natural features include Cooks Run, Iron Hill, Neshaminy Creek , Pine Run, Prospect Hill, and Royal Hill. New Britain Township is home to Peace Valley Park , a county park that surrounds Lake Galena , a reservoir along the North Branch Neshaminy Creek. As of the 2010 census, the township was 92.0% White, 1.6% Black or African American, 0.1% Native American, 3.3% Asian, and 0.9% were two or more races. 2.4% of

385-492: Is an historic, American home that is located in New Britain Township , Bucks County, Pennsylvania . It was added to the National Register of Historic Places in 1977. This original Federal period house was built circa 1783, and consists of a two-story, fieldstone main house with a one-story rear addition. The rear addition contains a kitchen and smokehouse . A three-story, stuccoed , stone addition with

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420-490: Is between 30 and 36 inches (76 and 91 cm), and the average snowiest month is February which corresponds with the annual peak in nor'easter activity. As of 2022 there were 81.11 miles (130.53 km) of public roads in New Britain Township, of which 21.53 miles (34.65 km) were maintained by the Pennsylvania Department of Transportation (PennDOT) and 59.58 miles (95.88 km) were maintained by

455-495: Is defined as the dry-bulb temperature which would feel the same if the water vapor pressure were 1.6  kPa . Quoting Steadman, "Thus, for instance, an apparent temperature of 24 °C (75 °F) refers to the same level of sultriness, and the same clothing requirements, as a dry-bulb temperature of 24 °C (75 °F) with a vapor pressure of 1.6 kPa." This vapor pressure corresponds for example to an air temperature of 29 °C (84 °F) and relative humidity of 40% in

490-519: Is from the U.S. National Oceanic and Atmospheric Administration . The columns begin at 80 °F (27 °C), but there is also a heat index effect at 79 °F (26 °C) and similar temperatures when there is high humidity. For example, if the air temperature is 96 °F (36 °C) and the relative humidity is 65%, the heat index is 121 °F (49 °C) Exposure to full sunshine can increase heat index values by up to 8 °C (14 °F). There are many formulas devised to approximate

525-405: Is sunshine; standing in direct sunlight can add up to 15 °F (8.3 °C) to the apparent heat compared to shade. There have been attempts to create a universal apparent temperature , such as the wet-bulb globe temperature , "relative outdoor temperature", "feels like", or the proprietary " RealFeel ". Outdoors in open conditions, as the relative humidity increases, first haze and ultimately

560-3381: Is this: H I = c 1 + c 2 T + c 3 R + c 4 T R + c 5 T 2 + c 6 R 2 + c 7 T 2 R + c 8 T R 2 + c 9 T 2 R 2 + + c 10 T 3 + c 11 R 3 + c 12 T 3 R + c 13 T R 3 + c 14 T 3 R 2 + c 15 T 2 R 3 + c 16 T 3 R 3 {\displaystyle {\begin{aligned}\mathrm {HI} &=c_{1}+c_{2}T+c_{3}R+c_{4}TR+c_{5}T^{2}+c_{6}R^{2}+c_{7}T^{2}R+c_{8}TR^{2}+c_{9}T^{2}R^{2}+\\&\quad {}+c_{10}T^{3}+c_{11}R^{3}+c_{12}T^{3}R+c_{13}TR^{3}+c_{14}T^{3}R^{2}+c_{15}T^{2}R^{3}+c_{16}T^{3}R^{3}\end{aligned}}} where c 1 = 16.923 , c 2 = 0.185 212 , c 3 = 5.379 41 , c 4 = − 0.100 254 , c 5 = 9.416 95 × 10 − 3 , c 6 = 7.288 98 × 10 − 3 , c 7 = 3.453 72 × 10 − 4 , c 8 = − 8.149 71 × 10 − 4 , c 9 = 1.021 02 × 10 − 5 , c 10 = − 3.8646 × 10 − 5 , c 11 = 2.915 83 × 10 − 5 , c 12 = 1.427 21 × 10 − 6 , c 13 = 1.974 83 × 10 − 7 , c 14 = − 2.184 29 × 10 − 8 , c 15 = 8.432 96 × 10 − 10 , c 16 = − 4.819 75 × 10 − 11 . {\displaystyle {\begin{aligned}c_{1}&=16.923,&c_{2}&=0.185\,212,&c_{3}&=5.379\,41,&c_{4}&=-0.100\,254,\\c_{5}&=9.416\,95\times 10^{-3},&c_{6}&=7.288\,98\times 10^{-3},&c_{7}&=3.453\,72\times 10^{-4},&c_{8}&=-8.149\,71\times 10^{-4},\\c_{9}&=1.021\,02\times 10^{-5},&c_{10}&=-3.8646\times 10^{-5},&c_{11}&=2.915\,83\times 10^{-5},&c_{12}&=1.427\,21\times 10^{-6},\\c_{13}&=1.974\,83\times 10^{-7},&c_{14}&=-2.184\,29\times 10^{-8},&c_{15}&=8.432\,96\times 10^{-10},&c_{16}&=-4.819\,75\times 10^{-11}.\end{aligned}}} For example, using this last formula, with temperature 90 °F (32 °C) and relative humidity (RH) of 85%,

595-1432: Is within ±3 °F (1.7 °C) of the NWS master table for all humidities from 0 to 80% and all temperatures between 70 and 115 °F (21–46 °C) and all heat indices below 150 °F (66 °C) is: c 1 = 0.363 445 176 , c 2 = 0.988 622 465 , c 3 = 4.777 114 035 , c 4 = − 0.114 037 667 , c 5 = − 8.502 08 × 10 − 4 , c 6 = − 2.071 6198 × 10 − 2 , c 7 = 6.876 78 × 10 − 4 , c 8 = 2.749 54 × 10 − 4 , c 9 = 0. {\displaystyle {\begin{aligned}c_{1}&=0.363\,445\,176,&c_{2}&=0.988\,622\,465,&c_{3}&=4.777\,114\,035,\\c_{4}&=-0.114\,037\,667,&c_{5}&=-8.502\,08\times 10^{-4},&c_{6}&=-2.071\,6198\times 10^{-2},\\c_{7}&=6.876\,78\times 10^{-4},&c_{8}&=2.749\,54\times 10^{-4},&c_{9}&=0.\end{aligned}}} A further alternate

630-904: The National Register of Historic Places . According to the United States Census Bureau , the township has a total area of 15.2 square miles (39.5 km), of which 14.7 square miles (38.1 km) is land and 0.6 square mile (1.4 km) (3.61%) is water. It is drained by the Delaware River via the Neshaminy Creek . Its villages include Christy (also in Montgomery County,) Fountainville, Line Lexington (also in Hilltown Township and Montgomery County,) Naces Corner, New Galena, and Newville . Brittany Farms-The Highlands CDP

665-452: The dew point was 35 °C (95 °F) while the temperature was 42 °C (108 °F), resulting in a heat index of 81 °C (178 °F). On August 28, 2024, a weather station in southern Iran recorded a heat index of 82.2 °C (180.0 °F), which will be a new record if confirmed. The human body requires evaporative cooling to prevent overheating. Wet-bulb temperature and Wet Bulb Globe Temperature are used to determine

700-813: The shade . For example, when the temperature is 32 °C (90 °F) with 70% relative humidity, the heat index is 41 °C (106 °F) (see table below). The heat index is meant to describe experienced temperatures in the shade, but it does not take into account heating from direct sunlight, physical activity or cooling from wind. The human body normally cools itself by evaporation of sweat . High relative humidity reduces evaporation and cooling, increasing discomfort and potential heat stress . Different individuals perceive heat differently due to body shape, metabolism, level of hydration, pregnancy , or other physical conditions. Measurement of perceived temperature has been based on reports of how hot subjects feel under controlled conditions of temperature and humidity. Besides

735-407: The ability of a body to eliminate excess heat. A sustained wet-bulb temperature of about 35 °C (95 °F) can be fatal to healthy people; at this temperature our bodies switch from shedding heat to the environment, to gaining heat from it. Thus a wet bulb temperature of 35 °C (95 °F) is the threshold beyond which the body is no longer able to adequately cool itself. The table below

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770-411: The average family size was 3.14. In the township the population was spread out, with 27.4% under the age of 18, 4.6% from 18 to 24, 29.7% from 25 to 44, 26.5% from 45 to 64, and 11.9% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 95.3 males. For every 100 females age 18 and over, there were 91.3 males. The median income for a household in the township

805-467: The heat index at higher temperatures. For example, at approximately 27 °C (81 °F), the heat index will agree with the actual temperature if the relative humidity is 45%, but at 43 °C (109 °F), any relative-humidity reading above 18% will make the heat index higher than 43 °C . It has been suggested that the equation described is valid only if the temperature is 27 °C (81 °F) or more. The relative humidity threshold, below which

840-483: The heat index uses a dew point base of 14 °C (57 °F). Further, the heat index uses heat balance equations which account for many variables other than vapor pressure, which is used exclusively in the humidex calculation. A joint committee formed by the United States and Canada to resolve differences has since been disbanded. The heat index of a given combination of ( dry-bulb ) temperature and humidity

875-1310: The heat index when the temperature is given in degrees Celsius, where c 1 = − 8.784 694 755 56 , c 2 = 1.611 394 11 , c 3 = 2.338 548 838 89 , c 4 = − 0.146 116 05 , c 5 = − 0.012 308 094 , c 6 = − 0.016 424 827 7778 , c 7 = 2.211 732 × 10 − 3 , c 8 = 7.2546 × 10 − 4 , c 9 = − 3.582 × 10 − 6 . {\textstyle {\begin{aligned}c_{1}&=-8.784\,694\,755\,56,&c_{2}&=1.611\,394\,11,&c_{3}&=2.338\,548\,838\,89,\\c_{4}&=-0.146\,116\,05,&c_{5}&=-0.012\,308\,094,&c_{6}&=-0.016\,424\,827\,7778,\\c_{7}&=2.211\,732\times 10^{-3},&c_{8}&=7.2546\times 10^{-4},&c_{9}&=-3.582\times 10^{-6}.\end{aligned}}} An alternative set of constants for this equation that

910-528: The heat index, other measures of apparent temperature include the Canadian humidex , the wet-bulb globe temperature , "relative outdoor temperature", and the proprietary " RealFeel ". The heat index was developed in 1979 by Robert G. Steadman . Like the wind chill index, the heat index contains assumptions about the human body mass and height, clothing, amount of physical activity, individual heat tolerance, sunlight and ultraviolet radiation exposure, and

945-523: The original tables by Steadman. Anderson et al. (2013), NWS (2011), Jonson and Long (2004), and Schoen (2005) have lesser residuals in this order. The former two are a set of polynomials, but the third one is by a single formula with exponential functions. The formula below approximates the heat index in degrees Fahrenheit, to within ±1.3 °F (0.7 °C). It is the result of a multivariate fit (temperature equal to or greater than 80 °F (27 °C) and relative humidity equal to or greater than 40%) to

980-565: The population were of Hispanic or Latino ancestry. As of the census of 2000, there were 10,698 people, 3,895 households, and 3,034 families residing in the township. The population density was 727.6 inhabitants per square mile (280.9/km). There were 3,969 housing units at an average density of 270.0 per square mile (104.2/km). The racial makeup of the township was 96.26% White , 1.35% African American , 0.12% Native American , 1.14% Asian , 0.43% from other races , and 0.70% from two or more races. Hispanic or Latino of any race were 1.28% of

1015-408: The population. There were 3,895 households, out of which 38.0% had children under the age of 18 living with them, 68.8% were married couples living together, 7.1% had a female householder with no husband present, and 22.1% were non-families. 18.4% of all households were made up of individuals, and 6.6% had someone living alone who was 65 years of age or older. The average household size was 2.74 and

1050-472: The result would be: 114.9 °F (46.1 °C). The heat index does not work well with extreme conditions, like supersaturation of air, when the air is more than 100% saturated with water. David Romps, a physicist and climate scientist at the University of California, Berkeley and his graduate student Yi-Chuan Lu, found that the heat index was underestimating the severity of intense heat waves, such as

1085-489: The sea-level psychrometric chart , and in Steadman's table at 40% RH the apparent temperature is equal to the true temperature between 26–31 °C (79–88 °F). At standard atmospheric pressure (101.325 kPa), this baseline also corresponds to a dew point of 14 °C (57 °F) and a mixing ratio of 0.01 (10 g of water vapor per kilogram of dry air). A given value of relative humidity causes larger increases in

New Britain Township, Pennsylvania - Misplaced Pages Continue

1120-535: The summer months, episodes of extreme heat and humidity can occur with heat index values ≥ 100 °F (≥ 38 °C). On average, the wettest month of the year is July which corresponds with the annual peak in thunderstorm activity. During the winter months, episodes of extreme cold and wind can occur with wind chill values < 0 °F (< -18 °C). The plant hardiness zone is 6b with an average annual extreme minimum air temperature of -1.4 °F (-18.6 °C). The average seasonal (Nov-Apr) snowfall total

1155-442: The township. Numbered highways passing through New Britain Township include U.S. Route 202 Business , Pennsylvania Route 152 and Pennsylvania Route 313 . US 202 Business follows the old route of U.S. Route 202 along Butler Avenue in the southern section of the township. PA 152 follows Limekiln Pike along a northwest-southeast alignment through southern and western sections of the township. Finally, PA 313 follows Swamp Road along

1190-407: The wind speed. Significant deviations from these will result in heat index values which do not accurately reflect the perceived temperature. In Canada , the similar humidex (a Canadian innovation introduced in 1965) is used in place of the heat index. While both the humidex and the heat index are calculated using dew point, the humidex uses a dew point of 7 °C (45 °F) as a base, whereas

1225-482: Was $ 71,194, and the median income for a family was $ 77,896. Males had a median income of $ 57,188 versus $ 34,390 for females. The per capita income for the township was $ 28,923. About 1.4% of families and 1.9% of the population were below the poverty line , including 2.3% of those under age 18 and 1.7% of those age 65 or over. According to the Köppen climate classification system, New Britain Township, Pennsylvania has

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