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Harristown, Illinois Climate Averages

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Harristown Monthly Climate Averages

January
February
March
April
May
June
July
August
September
October
November
December
Hi 32°F Lo 21°F Hi 36°F Lo 24°F Hi 50°F Lo 36°F Hi 61°F Lo 45°F Hi 72°F Lo 56°F Hi 80°F Lo 64°F Hi 82°F Lo 66°F Hi 81°F Lo 64°F Hi 77°F Lo 58°F Hi 64°F Lo 48°F Hi 50°F Lo 37°F Hi 39°F Lo 29°F
11 mph 11 mph 11 mph 11 mph 9 mph 8 mph 6 mph 6 mph 8 mph 10 mph 10 mph 10 mph
2 in 2.1 in 3.1 in 4.5 in 5 in 5.1 in 4 in 3.8 in 2.9 in 3 in 2.6 in 2.1 in
79% 79% 75% 74% 77% 79% 84% 82% 75% 70% 71% 77%
55% 54% 47% 44% 39% 28% 28% 28% 27% 35% 38% 49%
30.1 in 30.1 in 30.1 in 29.9 in 30.0 in 29.9 in 30.0 in 30.0 in 30.0 in 30.0 in 30.1 in 30.1 in
15 15 20 22 23 23 25 26 26 26 24 19
5 4 7 7 8 7 6 5 4 5 5 5
11 10 4 1 0 0 0 0 0 0 2 7
2 2 2 1 2 4 5 7 4 1 1 2
1 2 3 4 5 6 5 5 5 3 2 2
218 205 256 256 298 324 331 332 321 294 273 243
January
February
March
April
May
June
July
August
September
October
November
December
Hi 0°C Lo -6°C Hi 2°C Lo -5°C Hi 10°C Lo 2°C Hi 16°C Lo 7°C Hi 22°C Lo 14°C Hi 27°C Lo 18°C Hi 28°C Lo 19°C Hi 27°C Lo 18°C Hi 25°C Lo 15°C Hi 18°C Lo 9°C Hi 10°C Lo 3°C Hi 4°C Lo -2°C
17 km/h 17 km/h 17 km/h 17 km/h 15 km/h 12 km/h 10 km/h 10 km/h 12 km/h 15 km/h 16 km/h 16 km/h
52 mm 53 mm 78 mm 113 mm 127 mm 130 mm 101 mm 98 mm 75 mm 75 mm 65 mm 52 mm
79% 79% 75% 74% 77% 79% 84% 82% 75% 70% 71% 77%
55% 54% 47% 44% 39% 28% 28% 28% 27% 35% 38% 49%
1021 mb 1020 mb 1018 mb 1014 mb 1015 mb 1013 mb 1015 mb 1015 mb 1017 mb 1017 mb 1020 mb 1020 mb
15 15 20 22 23 23 25 26 26 26 24 19
5 4 7 7 8 7 6 5 4 5 5 5
11 10 4 1 0 0 0 0 0 0 2 7
2 2 2 1 2 4 5 7 4 1 1 2
1 2 3 4 5 6 5 5 5 3 2 2
218 205 256 256 298 324 331 332 321 294 273 243
Month
Avg. Temperatures
Avg. Wind Speed
Avg. Precipitation
Average Humidity
Avg. Cloud Cover
Pressure Average
Average Dry Days
Avg. Precip. Days
Avg. Snow Days
Average Fog Days
Average UV Index
Avg. Hours of Sun
Averages are based on historical weather data from the past 10 years.

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