Marseilles Island, Illinois Climate Averages

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Marseilles Island Monthly Climate Averages

January
February
March
April
May
June
July
August
September
October
November
December
Hi 30°F Lo 17°F Hi 35°F Lo 20°F Hi 49°F Lo 32°F Hi 59°F Lo 41°F Hi 71°F Lo 53°F Hi 80°F Lo 61°F Hi 82°F Lo 65°F Hi 81°F Lo 63°F Hi 77°F Lo 57°F Hi 63°F Lo 46°F Hi 49°F Lo 34°F Hi 37°F Lo 25°F
10 mph 10 mph 10 mph 10 mph 9 mph 8 mph 7 mph 7 mph 8 mph 10 mph 10 mph 10 mph
2.3 in 2.4 in 4.4 in 5.6 in 6.5 in 6.4 in 4.9 in 3.9 in 3.2 in 4.3 in 2.9 in 2.8 in
82% 80% 74% 73% 75% 79% 84% 81% 74% 69% 72% 79%
59% 55% 50% 50% 44% 35% 36% 32% 31% 40% 43% 56%
30.1 in 30.1 in 30.0 in 30.0 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
18 17 21 21 20 20 22 23 24 24 24 22
8 7 8 9 11 10 9 8 6 7 6 6
5 4 2 1 0 0 0 0 0 0 1 3
1 1 1 0 0 1 1 1 2 0 1 2
1 2 2 3 5 5 5 5 4 2 1 1
120 126 148 144 172 210 215 229 234 184 176 128
January
February
March
April
May
June
July
August
September
October
November
December
Hi -1°C Lo -8°C Hi 2°C Lo -7°C Hi 9°C Lo 0°C Hi 15°C Lo 5°C Hi 22°C Lo 11°C Hi 27°C Lo 16°C Hi 28°C Lo 18°C Hi 27°C Lo 17°C Hi 25°C Lo 14°C Hi 17°C Lo 8°C Hi 9°C Lo 1°C Hi 3°C Lo -4°C
16 km/h 16 km/h 17 km/h 17 km/h 14 km/h 13 km/h 11 km/h 11 km/h 12 km/h 15 km/h 16 km/h 16 km/h
58 mm 61 mm 111 mm 143 mm 165 mm 162 mm 124 mm 99 mm 80 mm 108 mm 73 mm 71 mm
82% 80% 74% 73% 75% 79% 84% 81% 74% 69% 72% 79%
59% 55% 50% 50% 44% 35% 36% 32% 31% 40% 43% 56%
1020 mb 1020 mb 1018 mb 1014 mb 1015 mb 1013 mb 1015 mb 1015 mb 1017 mb 1016 mb 1019 mb 1019 mb
18 17 21 21 20 20 22 23 24 24 24 22
8 7 8 9 11 10 9 8 6 7 6 6
5 4 2 1 0 0 0 0 0 0 1 3
1 1 1 0 0 1 1 1 2 0 1 2
1 2 2 3 5 5 5 5 4 2 1 1
120 126 148 144 172 210 215 229 234 184 176 128
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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