Roanoke, IL

Climate overview — based on NOAA 1991-2020 normals from ROANOKE, IL US.

Year-round temperatures (°F)

10° 20° 30° J F M A M J J A S O N D
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Best time to visit Roanoke

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Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January °F °F °F 2.29 in 6.4 in 9
February °F °F °F 1.91 in 9.1 in 9
March °F °F °F 2.75 in 3.6 in 10
April °F °F °F 3.83 in 0.6 in 11
May °F °F °F 4.42 in 12
June °F °F °F 4.06 in 10
July °F °F °F 3.74 in 9
August °F °F °F 3.76 in 9
September °F °F °F 3.83 in 7
October °F °F °F 2.94 in 9
November °F °F °F 2.54 in 1.2 in 8
December °F °F °F 2.18 in 7.0 in 9
Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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