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Weather & Climate

Lawrence County, Illinois, United States

Overview

Climate data and monthly weather averages for Lawrence County.

Key Metrics

Annual Avg
12.9°C
Summer Avg
24.2°C
Winter Avg
0.6°C
Record High
42°C
Record Low
-25.2°C
Annual Precipitation
1220.9 mm
Avg Humidity
78%
Summer Humidity
76%
Winter Humidity
83%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan20.3°-0.8°-25.2°80.383%6159.9
Feb22.3°0.9°-22°78.482%7658.8
Mar26.7°6.9°-16.2°112.580%11560.8
Apr29.1°13.3°-5.4°125.478%15055.7
May31.7°18.6°0.8°130.579%17356.3
Jun41.2°23.3°3.7°114.378%19348.5
Jul42°24.9°10.4°113.577%19431.5
Aug39.8°24.5°10.5°81.274%17642.8
Sep36.1°20.8°4.2°86.171%14165.3
Oct33.5°13.8°-3.7°103.973%10550.8
Nov26.6°6.9°-10.5°98.177%7153.4
Dec22°1.6°-21.4°96.784%5361.4

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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