Jefferson Hills, Pennsylvania, United States Climate

Weather: 2.25°C/36.05°F, Wind SW at 3.6 km/h, 48% Humidity, 0% Chance of rain

United States
(Photo by Anthony Fomin on Unsplash)

Jefferson Hills Climate Summary

Located at an elevation of 314.94 meters (1033.27 feet) above sea level, Jefferson Hills has a Humid subtropical, no dry season climate (Classification: Cfa). The district’s yearly temperature is 12.79ºC (55.02ºF) and it is 0.15% higher than United States’s averages. Jefferson Hills typically receives about 25.09 millimeters (0.99 inches) of precipitation and has 46.83 rainy days (12.83% of the time) annually.

CountryUnited States
CityPennsylvania
Longitude-79.9319942
Latitude40.2911809
Attitude/Elevation314.94m (1033.27ft)
Local timeSaturday 22:46
Annual high temperature15.83ºC (60.49ºF)
Annual low temperature8.04ºC (46.47ºF)
Average annual precip.25.09mm (0.99in)
Warmest monthJuly (29.85ºC / 85.73ºF)
Coldest MonthJanuary (-4.72ºC / 23.5ºF)
Wettest MonthMay (36.38mm / 1.43in)
Driest MonthNovember (12.8mm / 0.5in)
Number of days with rainfall (≥ 1.0 mm)46.83 days (12.83%)
Days with no rain318.17 days (87.17%)
Humidity74.16%

Climate Jefferson Hills: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)17.0(62.6)22.0(71.6)22.0(71.6)27.0(80.6)34.0(93.2)35.0(95.0)35.0(95.0)33.0(91.4)36.0(96.8)30.0(86.0)24.0(75.2)16.0(60.8)36.0(96.8)
Average high °C (°F)1.54(34.77)5.25(41.45)7.9(46.22)14.06(57.31)22.17(71.91)25.93(78.67)29.85(85.73)27.67(81.81)25.22(77.4)17.51(63.52)8.47(47.25)4.38(39.88)15.83(60.49)
Daily mean °C (°F)-0.9(30.38)2.72(36.9)5.0(41.0)10.69(51.24)18.75(65.75)22.51(72.52)26.35(79.43)24.28(75.7)21.57(70.83)14.25(57.65)5.96(42.73)2.27(36.09)12.79(55.02)
Average low °C (°F)-4.72(23.5)-1.53(29.25)0.29(32.52)5.31(41.56)13.04(55.47)16.92(62.46)20.47(68.85)19.1(66.38)16.56(61.81)9.58(49.24)2.29(36.12)-0.77(30.61)8.04(46.47)
Record low °C (°F)-19.0(-2.2)-18.0(-0.4)-15.0(5.0)-3.0(26.6)-2.0(28.4)8.0(46.4)15.0(59.0)14.0(57.2)7.0(44.6)1.0(33.8)-9.0(15.8)-10.0(14.0)-19.0(-2.2)
Average precipitation mm (inches)18.26(0.72)25.95(1.02)19.02(0.75)23.34(0.92)36.38(1.43)33.65(1.32)35.52(1.4)30.69(1.21)26.05(1.03)21.3(0.84)12.8(0.5)18.09(0.71)25.09(0.99)
Average precipitation days (≥ 1.0 mm)2.913.912.913.365.095.094.825.733.823.092.553.553.9
Average relative humidity (%)79.4877.0170.7670.1274.9172.6870.1273.2273.5473.2473.1481.7174.16
Mean monthly sunshine hours6.977.418.649.2811.2512.912.1510.6310.519.217.355.629.33

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Jefferson Hills in recent years.

Jefferson Hills

Jefferson Hills Temperature by Month

July
26.35°C | 79.43°F
August
24.28°C | 75.7°F
June
22.51°C | 72.52°F
September
21.57°C | 70.83°F
May
18.75°C | 65.75°F
October
14.25°C | 57.65°F
April
10.69°C | 51.24°F
November
5.96°C | 42.73°F
March
5.0°C | 41.0°F
February
2.72°C | 36.9°F
December
2.27°C | 36.09°F
January
-0.9°C | 30.38°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature14.0°C (57.2°F)0.03°C (32.05°F)-13.0°C (8.6°F)
Avg Temperature10.0°C (50.0°F)-2.81°C (26.94°F)-16.0°C (3.2°F)
Min Temperature6.0°C (42.8°F)-7.35°C (18.77°F)-19.0°C (-2.2°F)
Dew PointMaxAverageMin
Dew Point8.0°C (46.4°F)-6.26°C (20.73°F)-19.0°C (-2.2°F)
PrecipitationMaxAverageMinSum
Precipitation29.3mm | 1.15in2.5mm | 0.1in0.0mm | 0in77.5mm | 3.05in
Snowdepth4.8mm | 0.19in0.66mm | 0.03in0.0mm | 0in20.400000000000002mm | 0.8in
WindMaxAverageMin
Wind18.0kmh | 11.18mph10.71kmh | 6.65mph5.0kmh | 3.11mph
Gust Wind25.0kmh | 15.53mph16.39kmh | 10.18mph7.0kmh | 4.35mph
Sea Level PressureMaxAverageMin
Sea Level Pressure29.3mb2.5mb0.0mb
Jefferson Hills

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
January° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-01-01-13 | 8.6-16 | 3.28412 | 7.4630.56 | 10350.1 | 0.0
2018-01-02-13 | 8.6-16 | 3.28412 | 7.4630.59 | 10360.0 | 0.0
2018-01-03-9 | 15.8-14 | 6.8737 | 4.3530.24 | 10240.0 | 0.0
2018-01-04-11 | 12.2-14 | 6.88115 | 9.3230.0 | 10160.6 | 0.02
2018-01-05-16 | 3.2-19 | -2.27618 | 11.1830.24 | 10240.0 | 0.0
2018-01-06-15 | 5.0-19 | -2.27813 | 8.0830.53 | 10340.1 | 0.0
2018-01-07-10 | 14.0-15 | 5.0737 | 4.3530.5 | 10330.0 | 0.0
2018-01-080 | 32.0-3 | 26.68514 | 8.730.12 | 10204.6 | 0.18
2018-01-09-0 | 32.0-2 | 28.4927 | 4.3530.3 | 10260.2 | 0.01
2018-01-103 | 37.41 | 33.8926 | 3.7330.3 | 10260.0 | 0.0
2018-01-119 | 48.27 | 44.6927 | 4.3530.12 | 102010.3 | 0.41
2018-01-128 | 46.46 | 42.89412 | 7.4629.77 | 100829.3 | 1.15
2018-01-13-9 | 15.8-11 | 12.28716 | 9.9430.3 | 10265.6 | 0.22
2018-01-14-11 | 12.2-14 | 6.8855 | 3.1130.68 | 10390.0 | 0.0
2018-01-15-6 | 21.2-9 | 15.8838 | 4.9730.47 | 10320.8 | 0.03
2018-01-16-5 | 23.0-6 | 21.2948 | 4.9730.45 | 10313.1 | 0.12
2018-01-17-13 | 8.6-15 | 5.0937 | 4.3530.53 | 10340.2 | 0.01
2018-01-18-8 | 17.6-11 | 12.28716 | 9.9430.27 | 10250.0 | 0.0
2018-01-19-3 | 26.6-5 | 23.08515 | 9.3230.12 | 10200.0 | 0.0
2018-01-202 | 35.60 | 32.08914 | 8.730.06 | 10180.0 | 0.0
2018-01-215 | 41.04 | 39.2988 | 4.9730.15 | 10210.9 | 0.04
2018-01-2210 | 50.08 | 46.4919 | 5.5929.97 | 10152.6 | 0.1
2018-01-236 | 42.83 | 37.47917 | 10.5629.74 | 10076.0 | 0.24
2018-01-24-1 | 30.2-6 | 21.27213 | 8.0830.15 | 10210.4 | 0.02
2018-01-25-2 | 28.4-7 | 19.4727 | 4.3530.5 | 10330.0 | 0.0
2018-01-265 | 41.0-2 | 28.4708 | 4.9730.5 | 10330.0 | 0.0
2018-01-278 | 46.42 | 35.67512 | 7.4630.3 | 10265.4 | 0.21
2018-01-286 | 42.81 | 33.8745 | 3.1130.3 | 10264.8 | 0.19
2018-01-294 | 39.2-2 | 28.4716 | 3.7330.15 | 10211.3 | 0.05
2018-01-30-7 | 19.4-11 | 12.27216 | 9.9430.3 | 10261.2 | 0.05
2018-01-31-1 | 30.2-9 | 15.86012 | 7.4630.12 | 10200.0 | 0.0

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