Climate West Mifflin - Pennsylvania
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 36 | 39 | 49 | 62 | 71 | 79 |
| Average low in ºF Av. low Lo | 22 | 24 | 31 | 42 | 51 | 59 |
| Av. precipitation in inch Av. precip. Pre. | 2.73 | 2.68 | 3.10 | 3.15 | 4.17 | 4.04 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 82 | 81 | 74 | 63 | 51 | 40 |
| Average low in ºF Av. low Lo | 63 | 62 | 55 | 44 | 36 | 26 |
| Av. precipitation in inch Av. precip. Pre. | 3.77 | 3.51 | 3.35 | 2.52 | 3.35 | 2.92 |
What is the average weather in West Mifflin, Pennsylvania?
West Mifflin experiences a humid continental climate, marked by warm summers and cold winters, creating a strong seasonal contrast. Precipitation is fairly wet overall, with moisture spread relatively evenly throughout the year, though summer is typically the wettest season and winter the driest.
West Mifflin Climate Graph - Pennsylvania Climate Chart
Daily normals West Mifflin - Pennsylvania - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 37.6 | 24.1 | 0.11 | 0.11 | 0.00 | 0.00 |
| 2 Jan | 37.5 | 23.9 | 0.22 | 0.22 | 0.00 | 0.00 |
| 3 Jan | 37.3 | 23.7 | 0.33 | 0.33 | 0.00 | 0.00 |
| 4 Jan | 37.2 | 23.5 | 0.44 | 0.44 | 0.00 | 0.00 |
| 5 Jan | 37.1 | 23.4 | 0.54 | 0.54 | 0.00 | 0.00 |
| 6 Jan | 37.0 | 23.2 | 0.65 | 0.65 | 0.00 | 0.00 |
| 7 Jan | 36.8 | 23.0 | 0.75 | 0.75 | 0.00 | 0.00 |
| 8 Jan | 36.7 | 22.8 | 0.84 | 0.84 | 0.00 | 0.00 |
| 9 Jan | 36.6 | 22.7 | 0.94 | 0.94 | 0.00 | 0.00 |
| 10 Jan | 36.6 | 22.5 | 1.04 | 1.04 | 0.00 | 0.00 |
| 11 Jan | 36.5 | 22.4 | 1.15 | 1.15 | 0.00 | 0.00 |
| 12 Jan | 36.4 | 22.3 | 1.25 | 1.25 | 0.00 | 0.00 |
| 13 Jan | 36.4 | 22.2 | 1.35 | 1.35 | 0.00 | 0.00 |
| 14 Jan | 36.3 | 22.1 | 1.45 | 1.45 | 0.00 | 0.00 |
| 15 Jan | 36.3 | 22.0 | 1.55 | 1.55 | 0.00 | 0.00 |
| 16 Jan | 36.2 | 21.9 | 1.66 | 1.66 | 0.00 | 0.00 |
| 17 Jan | 36.2 | 21.8 | 1.76 | 1.76 | 0.00 | 0.00 |
| 18 Jan | 36.2 | 21.7 | 1.86 | 1.86 | 0.00 | 0.00 |
| 19 Jan | 36.2 | 21.7 | 1.95 | 1.95 | 0.00 | 0.00 |
| 20 Jan | 36.2 | 21.6 | 2.05 | 2.05 | 0.00 | 0.00 |
| 21 Jan | 36.2 | 21.6 | 2.14 | 2.14 | 0.00 | 0.00 |
| 22 Jan | 36.2 | 21.6 | 2.23 | 2.23 | 0.00 | 0.00 |
| 23 Jan | 36.3 | 21.6 | 2.32 | 2.32 | 0.00 | 0.00 |
| 24 Jan | 36.3 | 21.6 | 2.42 | 2.42 | 0.00 | 0.00 |
| 25 Jan | 36.4 | 21.6 | 2.52 | 2.52 | 0.00 | 0.00 |
| 26 Jan | 36.4 | 21.6 | 2.62 | 2.62 | 0.00 | 0.00 |
| 27 Jan | 36.5 | 21.7 | 2.71 | 2.71 | 0.00 | 0.00 |
| 28 Jan | 36.6 | 21.7 | 2.80 | 2.80 | 0.00 | 0.00 |
| 29 Jan | 36.7 | 21.8 | 2.89 | 2.89 | 0.00 | 0.00 |
| 30 Jan | 36.8 | 21.9 | 2.98 | 2.98 | 0.00 | 0.00 |
| 31 Jan | 36.9 | 22.0 | 3.08 | 3.08 | 0.00 | 0.00 |
Weather history West Mifflin - September 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Sep | 88.0 | 71.1 | 0.00 | - | - |
| 02 Sep | 91.9 | 71.1 | 0.00 | - | - |
| 03 Sep | 87.1 | 66.0 | - | - | - |
| 04 Sep | 81.0 | 66.9 | 0.29 | - | - |
| 05 Sep | 79.0 | 63.0 | 0.00 | - | - |
| 06 Sep | 77.0 | 57.9 | 0.00 | - | - |
| 07 Sep | 78.1 | 57.9 | 0.00 | - | - |
| 08 Sep | - | - | - | - | - |
| 09 Sep | - | - | - | - | - |
| 10 Sep | - | - | - | - | - |
| 11 Sep | - | - | - | - | - |
| 12 Sep | - | - | - | - | - |
| 13 Sep | - | - | - | - | - |
| 14 Sep | - | - | - | - | - |
| 15 Sep | - | - | - | - | - |
| 16 Sep | - | - | - | - | - |
| 17 Sep | - | - | - | - | - |
| 18 Sep | - | - | - | - | - |
| 19 Sep | - | - | - | - | - |
| 20 Sep | - | - | - | - | - |
| 21 Sep | - | - | - | - | - |
| 22 Sep | - | - | - | - | - |
| 23 Sep | - | - | - | - | - |
| 24 Sep | - | - | - | - | - |
| 25 Sep | - | - | - | - | - |
| 26 Sep | - | - | - | - | - |
| 27 Sep | - | - | - | - | - |
| 28 Sep | - | - | - | - | - |
| 29 Sep | - | - | - | - | - |
| 30 Sep | - | - | - | - | - |
Past weather West Mifflin
| Sep 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 83.2 ºF | 36 ºF | |
| Average low temperature Av. low temp. | 64.8 ºF | 22 ºF | |
| Total precipitation Total precip. | 0.29 inch | 2.73 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 91.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 77.0 ºF | - | |
| Highest min temperature Highest min temp. | 71.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 57.9 ºF | - | |
Past weather September 2026 incomplete - Missing data
Geo West Mifflin - Pennsylvania
| Country | United States | |
|---|---|---|
| State | Pennsylvania | |
| County | - | |
| City | West Mifflin | |
| Zip Code | 15122 | |
| Longitude | -79.87 dec. degr. | |
| Latitude | 40.36 dec. degr. | |
| Altitude - Elevation | 1073ft | |
| ICAO | - | |
| IATA | - |
Date and Time West Mifflin - Pennsylvania
| Local Time | 12:36 AM | |
|---|---|---|
| Sunrise | 06:55 AM | |
| Sunset | 07:36 PM | |
| Day/Night | Night | |
| Timezone | Eastern Daylight Time | |
| Timezone DB | America - New York |
Map of West Mifflin - Pennsylvania
USGS National Map — Open interactive map
West Mifflin weather averages
| Annual high temperature | 60ºF |
| Annual low temperature | 43ºF |
| Average annual precip. | 39.29 inch |
Station Data
Monthly averages West Mifflin
Longitude: -79.8664, Latitude: 40.3634
Average weather West Mifflin, PA - 15122
Monthly: 1991-2020 normals
History: 2015-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...