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Weather & Climate

Spring Grove, Illinois, United States

Overview

Climate data and monthly weather averages for Spring Grove.

Key Metrics

Annual Avg
8.8°C
Summer Avg
21.5°C
Winter Avg
-4.6°C
Record High
39.8°C
Record Low
-37.1°C
Annual Precipitation
971.7 mm
Avg Humidity
80%
Summer Humidity
75%
Winter Humidity
87%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan14.7°-6.1°-37.1°41.988%5364.6
Feb17.9°-4.8°-27.4°45.985%7472.3
Mar26.3°1.7°-25°6280%11265.9
Apr27.7°7.7°-8.3°92.477%14158.1
May32.8°13.8°-3.2°113.178%17061.8
Jun36.1°19.6°1.8°123.377%18460.2
Jul39.8°22.8°8.7°100.474%19438.7
Aug37.5°22.1°7.6°103.574%16841.7
Sep33.9°18°2.1°93.675%13149.8
Oct29.8°10.4°-7.6°83.477%8857.5
Nov22.7°3.5°-15.4°56.781%5760.1
Dec19°-3°-28.5°55.588%4466.8

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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