Jefferson Hills, PA Weather & Climate Normals
Jefferson Hills's real weather, in one number
Jefferson Hills, PA scores 50/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Jefferson Hills's hottest and coldest months
Jefferson Hills's hottest month is Jul, averaging 74°F; its coldest is Jan, averaging 30°F, a 44.1°F swing across the year, a middling gap by national standards.
Jefferson Hills's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 37°F | 22°F | 3.08in |
| Feb | 40°F | 24°F | 2.57in |
| Mar | 49°F | 31°F | 3.22in |
| Apr | 63°F | 42°F | 3.4in |
| May | 72°F | 52°F | 4.08in |
| Jun | 79°F | 60°F | 4.58in |
| Jul | 83°F | 64°F | 3.93in |
| Aug | 81°F | 63°F | 3.81in |
| Sep | 75°F | 56°F | 3.54in |
| Oct | 63°F | 45°F | 3.06in |
| Nov | 51°F | 35°F | 3.03in |
| Dec | 41°F | 28°F | 3.04in |
May, Jun, Jul, Aug, and Sep are the best time to see Jefferson Hills at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Jefferson Hills
Over a typical year, Jefferson Hills sees about 41.34in of precipitation a year across roughly 161 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Jefferson Hills ranks
Jefferson Hills ranks 1799 of 4876 US cities in this dataset for comfort score, and 23 of 193 within PA. About 12,291 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Pittsburgh Allegheny Co Ap, PA US, 4.1 miles from Jefferson Hills, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is