Chatham, Illinois, United States Climate

Weather: 8.94°C/48.09°F, Wind SW at 6.69 km/h, 51% Humidity, 0% Chance of rain

United States
(Photo by Andres Garcia on Unsplash)
Contents

Chatham Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Chatham has a Humid continental, no dry season, hot summer climate (Classification: Dfa). The district’s yearly temperature is 12.78ºC (55.0ºF) and it is 0.14% higher than United States’s averages. Chatham typically receives about 22.28 millimeters (0.88 inches) of precipitation and has 39.37 rainy days (10.79% of the time) annually.

CountryUnited States
CityIllinois
Longitude-89.7045439
Latitude39.676163
Attitude/ElevationNonem (0ft)
Local timeFriday 17:08
Annual high temperature15.85ºC (60.53ºF)
Annual low temperature7.92ºC (46.26ºF)
Average annual precip.22.28mm (0.88in)
Warmest monthJuly (27.74ºC / 81.93ºF)
Coldest MonthJanuary (-5.33ºC / 22.41ºF)
Wettest MonthJune (34.06mm / 1.34in)
Driest MonthDecember (11.51mm / 0.45in)
Number of days with rainfall (≥ 1.0 mm)39.37 days (10.79%)
Days with no rain325.63 days (89.21%)
Humidity75.99%

Climate Chatham: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)17.0(62.6)19.0(66.2)23.0(73.4)27.0(80.6)34.0(93.2)33.0(91.4)32.0(89.6)31.0(87.8)31.0(87.8)31.0(87.8)23.0(73.4)16.0(60.8)34.0(93.2)
Average high °C (°F)1.33(34.39)3.73(38.71)9.48(49.06)14.73(58.51)23.3(73.94)26.94(80.49)27.74(81.93)26.72(80.1)25.58(78.04)16.72(62.1)8.52(47.34)5.35(41.63)15.85(60.53)
Daily mean °C (°F)-1.3(29.66)0.76(33.37)6.39(43.5)11.14(52.05)20.14(68.25)23.97(75.15)24.95(76.91)23.65(74.57)21.88(71.38)13.43(56.17)5.64(42.15)2.75(36.95)12.78(55.0)
Average low °C (°F)-5.33(22.41)-3.55(25.61)1.88(35.38)5.72(42.3)14.63(58.33)18.12(64.62)19.57(67.23)18.37(65.07)16.34(61.41)8.43(47.17)1.64(34.95)-0.82(30.52)7.92(46.26)
Record low °C (°F)-25.0(-13.0)-16.0(3.2)-16.0(3.2)-8.0(17.6)2.0(35.6)9.0(48.2)14.0(57.2)12.0(53.6)6.0(42.8)-2.0(28.4)-14.0(6.8)-12.0(10.4)-25.0(-13.0)
Average precipitation mm (inches)19.39(0.76)16.75(0.66)21.35(0.84)24.08(0.95)30.66(1.21)34.06(1.34)28.58(1.13)28.63(1.13)24.29(0.96)15.85(0.62)12.22(0.48)11.51(0.45)22.28(0.88)
Average precipitation days (≥ 1.0 mm)2.02.643.093.275.094.644.184.553.732.452.091.643.28
Average relative humidity (%)77.4473.9470.5670.1375.6779.2985.8685.0377.5468.1473.1875.1675.99
Mean monthly sunshine hours6.648.169.129.512.6213.5813.5210.8810.529.466.746.679.78

Climate Graph

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

Chatham

Chatham Temperature by Month

July
24.95°C | 76.91°F
June
23.97°C | 75.15°F
August
23.65°C | 74.57°F
September
21.88°C | 71.38°F
May
20.14°C | 68.25°F
October
13.43°C | 56.17°F
April
11.14°C | 52.05°F
March
6.39°C | 43.5°F
November
5.64°C | 42.15°F
December
2.75°C | 36.95°F
February
0.76°C | 33.37°F
January
-1.3°C | 29.66°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature12.0°C (53.6°F)2.41°C (36.34°F)-8.0°C (17.6°F)
Avg Temperature9.0°C (48.2°F)-0.28°C (31.5°F)-12.0°C (10.4°F)
Min Temperature4.0°C (39.2°F)-4.0°C (24.8°F)-16.0°C (3.2°F)
Dew PointMaxAverageMin
Dew Point6.0°C (42.8°F)-4.17°C (24.49°F)-16.0°C (3.2°F)
PrecipitationMaxAverageMinSum
Precipitation13.2mm | 0.52in1.59mm | 0.06in0.0mm | 0in46.0mm | 1.81in
Snowdepth1.6mm | 0.06in0.15mm | 0.01in0.0mm | 0in4.3mm | 0.17in
WindMaxAverageMin
Wind27.0kmh | 16.78mph16.21kmh | 10.07mph6.0kmh | 3.73mph
Gust Wind35.0kmh | 21.75mph24.17kmh | 15.02mph12.0kmh | 7.46mph
Sea Level PressureMaxAverageMin
Sea Level Pressure13.2mb1.59mb0.0mb
Chatham

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
February° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-02-011 | 33.80 | 32.09214 | 8.730.03 | 10170.2 | 0.01
2020-02-027 | 44.62 | 35.67917 | 10.5629.83 | 10100.0 | 0.0
2020-02-039 | 48.25 | 41.08114 | 8.729.71 | 10060.1 | 0.0
2020-02-042 | 35.61 | 33.88723 | 14.2929.88 | 10122.4 | 0.09
2020-02-05-1 | 30.2-4 | 24.88224 | 14.9129.91 | 10134.8 | 0.19
2020-02-06-3 | 26.6-4 | 24.89317 | 10.5629.62 | 10031.7 | 0.07
2020-02-07-3 | 26.6-6 | 21.28411 | 6.8429.8 | 10090.1 | 0.0
2020-02-08-4 | 24.8-5 | 23.09113 | 8.0830.15 | 10210.3 | 0.01
2020-02-090 | 32.0-1 | 30.29319 | 11.8130.09 | 10196.4 | 0.25
2020-02-10-1 | 30.2-2 | 28.48813 | 8.0830.18 | 10220.9 | 0.04
2020-02-111 | 33.8-3 | 26.67911 | 6.8430.18 | 10220.0 | 0.0
2020-02-120 | 32.0-2 | 28.48710 | 6.2129.97 | 10156.0 | 0.24
2020-02-13-11 | 12.2-10 | 14.09024 | 14.9130.15 | 10211.4 | 0.06
2020-02-14-12 | 10.4-15 | 5.07711 | 6.8430.59 | 10360.0 | 0.0
2020-02-15-2 | 28.4-7 | 19.47520 | 12.4330.24 | 10240.0 | 0.0
2020-02-161 | 33.8-1 | 30.2896 | 3.7330.12 | 10200.4 | 0.02
2020-02-175 | 41.03 | 37.49417 | 10.5629.94 | 10142.9 | 0.11
2020-02-182 | 35.60 | 32.08719 | 11.8130.15 | 10210.8 | 0.03
2020-02-19-2 | 28.4-9 | 15.86516 | 9.9430.56 | 10350.0 | 0.0
2020-02-20-4 | 24.8-13 | 8.65317 | 10.5630.68 | 10390.0 | 0.0
2020-02-21-2 | 28.4-16 | 3.23911 | 6.8430.62 | 10370.0 | 0.0
2020-02-223 | 37.4-6 | 21.25518 | 11.1830.33 | 10270.0 | 0.0
2020-02-236 | 42.81 | 33.87716 | 9.9430.06 | 10180.2 | 0.01
2020-02-246 | 42.86 | 42.89712 | 7.4629.77 | 100813.2 | 0.52
2020-02-254 | 39.23 | 37.49118 | 11.1829.74 | 10073.9 | 0.15
2020-02-26-2 | 28.4-6 | 21.27427 | 16.7829.97 | 10150.3 | 0.01
2020-02-27-4 | 24.8-14 | 6.85122 | 13.6730.18 | 10220.0 | 0.0
2020-02-28-6 | 21.2-14 | 6.85419 | 11.8130.33 | 10270.0 | 0.0
2020-02-292 | 35.6-4 | 24.87111 | 6.8430.18 | 10220.0 | 0.0

Chatham 3 Year Historical Weather Data

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