Bethlehem, Pennsylvania, United States Climate

Weather: 8.04°C/46.47°F, Wind SW at 1.61 km/h, 59% Humidity, 0% Chance of rain

United States
(Photo by Joe Dudeck on Unsplash)
Contents

Bethlehem Climate Summary

Located at an elevation of 110.97 meters (364.07 feet) above sea level, Bethlehem has a Humid continental, no dry season, hot summer climate (Classification: Dfa). The district’s yearly temperature is 12.35ºC (54.23ºF) and it is -0.29% lower than United States’s averages. Bethlehem typically receives about 44.85 millimeters (1.77 inches) of precipitation and has 44.91 rainy days (12.3% of the time) annually.

CountryUnited States
CityPennsylvania
Longitude-75.3704579
Latitude40.6259316
Attitude/Elevation110.97m (364.07ft)
Local timeSaturday 05:30
Annual high temperature15.44ºC (59.79ºF)
Annual low temperature7.0ºC (44.6ºF)
Average annual precip.44.85mm (1.77in)
Warmest monthJuly (29.25ºC / 84.65ºF)
Coldest MonthJanuary (-4.62ºC / 23.68ºF)
Wettest MonthAugust (67.49mm / 2.66in)
Driest MonthJanuary (31.17mm / 1.23in)
Number of days with rainfall (≥ 1.0 mm)44.91 days (12.3%)
Days with no rain320.09000000000003 days (87.7%)
Humidity76.37%

Climate Bethlehem: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)16.0(60.8)23.0(73.4)21.0(69.8)26.0(78.8)32.0(89.6)34.0(93.2)36.0(96.8)33.0(91.4)33.0(91.4)30.0(86.0)22.0(71.6)14.0(57.2)36.0(96.8)
Average high °C (°F)2.18(35.92)5.2(41.36)7.86(46.15)13.39(56.1)20.55(68.99)25.29(77.52)29.25(84.65)27.41(81.34)24.01(75.22)17.06(62.71)8.93(48.07)4.19(39.54)15.44(59.79)
Daily mean °C (°F)-0.44(31.21)2.32(36.18)4.67(40.41)10.27(50.49)17.26(63.07)21.92(71.46)25.91(78.64)24.14(75.45)20.42(68.76)13.91(57.04)5.94(42.69)1.91(35.44)12.35(54.23)
Average low °C (°F)-4.62(23.68)-2.27(27.91)-0.46(31.17)4.49(40.08)10.69(51.24)15.0(59.0)19.14(66.45)18.3(64.94)14.77(58.59)8.77(47.79)1.67(35.01)-1.49(29.32)7.0(44.6)
Record low °C (°F)-18.0(-0.4)-15.0(5.0)-13.0(8.6)-3.0(26.6)1.0(33.8)7.0(44.6)13.0(55.4)13.0(55.4)5.0(41.0)-1.0(30.2)-9.0(15.8)-12.0(10.4)-18.0(-0.4)
Average precipitation mm (inches)31.17(1.23)36.55(1.44)43.29(1.7)41.25(1.62)58.72(2.31)46.92(1.85)59.29(2.33)67.49(2.66)34.31(1.35)35.52(1.4)37.65(1.48)46.01(1.81)44.85(1.77)
Average precipitation days (≥ 1.0 mm)2.273.553.273.454.914.644.825.823.733.02.363.093.74
Average relative humidity (%)72.1975.3673.2971.8178.0276.6977.2480.0878.8278.5974.8979.5176.37
Mean monthly sunshine hours7.458.319.059.2412.3712.9813.510.389.679.026.886.029.57

Climate Graph

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

Bethlehem

Bethlehem Temperature by Month

July
25.91°C | 78.64°F
August
24.14°C | 75.45°F
June
21.92°C | 71.46°F
September
20.42°C | 68.76°F
May
17.26°C | 63.07°F
October
13.91°C | 57.04°F
April
10.27°C | 50.49°F
November
5.94°C | 42.69°F
March
4.67°C | 40.41°F
February
2.32°C | 36.18°F
December
1.91°C | 35.44°F
January
-0.44°C | 31.21°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature27.0°C (80.6°F)16.61°C (61.9°F)7.0°C (44.6°F)
Avg Temperature23.0°C (73.4°F)13.29°C (55.92°F)5.0°C (41.0°F)
Min Temperature19.0°C (66.2°F)8.42°C (47.16°F)1.0°C (33.8°F)
Dew PointMaxAverageMin
Dew Point20.0°C (68.0°F)8.19°C (46.74°F)-2.0°C (28.4°F)
PrecipitationMaxAverageMinSum
Precipitation25.7mm | 1.01in2.98mm | 0.12in0.0mm | 0in92.4mm | 3.64in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind20.0kmh | 12.43mph10.03kmh | 6.23mph4.0kmh | 2.49mph
Gust Wind29.0kmh | 18.02mph14.94kmh | 9.28mph6.0kmh | 3.73mph
Sea Level PressureMaxAverageMin
Sea Level Pressure25.7mb2.98mb0.0mb
Bethlehem

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
October° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-10-0121 | 69.816 | 60.8836 | 3.7330.27 | 10250.0 | 0.0
2018-10-0222 | 71.619 | 66.2908 | 4.9730.12 | 102015.9 | 0.63
2018-10-0320 | 68.016 | 60.8856 | 3.7330.06 | 10184.5 | 0.18
2018-10-0422 | 71.617 | 62.6866 | 3.7330.0 | 10160.8 | 0.03
2018-10-0517 | 62.612 | 53.6798 | 4.9730.12 | 10200.3 | 0.01
2018-10-0619 | 66.216 | 60.8916 | 3.7330.18 | 10221.3 | 0.05
2018-10-0723 | 73.419 | 66.2886 | 3.7330.18 | 10220.5 | 0.02
2018-10-0819 | 66.218 | 64.4958 | 4.9730.36 | 10283.4 | 0.13
2018-10-0922 | 71.619 | 66.2906 | 3.7330.3 | 10261.4 | 0.06
2018-10-1023 | 73.419 | 66.2907 | 4.3530.06 | 10181.5 | 0.06
2018-10-1122 | 71.620 | 68.09510 | 6.2129.71 | 100610.4 | 0.41
2018-10-1212 | 53.66 | 42.86817 | 10.5629.74 | 10073.1 | 0.12
2018-10-1310 | 50.04 | 39.2739 | 5.5929.94 | 10142.7 | 0.11
2018-10-1410 | 50.04 | 39.2744 | 2.4930.21 | 10230.0 | 0.0
2018-10-1516 | 60.812 | 53.69013 | 8.0830.03 | 10177.7 | 0.3
2018-10-169 | 48.22 | 35.66511 | 6.8430.12 | 10200.0 | 0.0
2018-10-1710 | 50.02 | 35.66515 | 9.3230.03 | 10170.1 | 0.0
2018-10-187 | 44.6-2 | 28.46011 | 6.8430.36 | 10280.0 | 0.0
2018-10-1910 | 50.03 | 37.46811 | 6.8430.18 | 10220.0 | 0.0
2018-10-2012 | 53.68 | 46.48213 | 8.0829.74 | 10077.6 | 0.3
2018-10-215 | 41.0-0 | 32.06916 | 9.9430.0 | 10162.2 | 0.09
2018-10-227 | 44.60 | 32.07110 | 6.2130.21 | 10230.0 | 0.0
2018-10-2311 | 51.84 | 39.2699 | 5.5930.03 | 10170.7 | 0.03
2018-10-247 | 44.61 | 33.87216 | 9.9430.15 | 10210.0 | 0.0
2018-10-256 | 42.8-1 | 30.27010 | 6.2130.18 | 10220.0 | 0.0
2018-10-266 | 42.8-0 | 32.0707 | 4.3530.09 | 10190.4 | 0.02
2018-10-277 | 44.65 | 41.09320 | 12.4329.68 | 100525.7 | 1.01
2018-10-287 | 44.64 | 39.2889 | 5.5929.77 | 10080.4 | 0.02
2018-10-299 | 48.24 | 39.28114 | 8.729.83 | 10101.8 | 0.07
2018-10-309 | 48.21 | 33.87011 | 6.8430.09 | 10190.0 | 0.0
2018-10-3112 | 53.66 | 42.8758 | 4.9730.03 | 10170.0 | 0.0

Bethlehem 3 Year Historical Weather Data

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