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West Mifflin climate
Typical historical weather for West Mifflin, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for West Mifflin.
Annual average
12.2°C
across all months
Warmest month
28.8°C
Jul average high
Coolest month
-4.3°C
Jan average low
Annual rainfall
1370mm
total per year
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
● Avg high● Avg low▮ Rainfall
Records on file
Hottest day
35.2°C
15 July 2024
Coldest day
-26.4°C
22 January 2025
Wettest day
87.5mm
9 September 2018
Windiest day
7.7m/s
29 December 2025
See the detail: West Mifflin on 9 September 2018.