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Weather & Climate

Superior, Wisconsin, United States

Overview

Climate data and monthly weather averages for Superior.

Key Metrics

Annual Avg
5.2°C
Summer Avg
18.9°C
Winter Avg
-9.7°C
Record High
37.8°C
Record Low
-36.5°C
Annual Precipitation
795 mm
Avg Humidity
81%
Summer Humidity
74%
Winter Humidity
92%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan6.2°-11.4°-34°19.894%4951.3
Feb10.5°-10°-32.5°25.591%7655
Mar22.8°-2.5°-36.5°40.983%11855.8
Apr25.6°4.6°-13.9°75.975%14149.3
May29.7°11.1°-3.8°94.275%16648.6
Jun32.8°16.7°2.4°104.177%17843.8
Jul37.8°20.5°6.6°93.673%19244.6
Aug35.2°19.6°96.172%16143.3
Sep32.2°15.2°-0.7°84.974%11544.3
Oct27.2°6.9°-8.9°82.578%7556
Nov19.8°-0.4°-20.6°37.583%4649.5
Dec11.8°-7.6°-33.6°4091%3551.2

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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