Coatesville, PA Weather & Climate Normals
Coatesville's real weather, in one number
Coatesville, PA scores 46/100 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.
Coatesville's hottest and coldest months
Coatesville's hottest month is Jul, averaging 75°F; its coldest is Jan, averaging 30°F, a 44.8°F swing across the year, a middling gap by national standards.
Coatesville's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 39°F | 22°F | 4.05in | 7.9in |
| Feb | 42°F | 23°F | 3.34in | 11.5in |
| Mar | 50°F | 31°F | 4.8in | 6.3in |
| Apr | 63°F | 40°F | 4.1in | 1.1in |
| May | 73°F | 50°F | 4.02in | 0in |
| Jun | 81°F | 59°F | 4.54in | 0in |
| Jul | 85°F | 65°F | 4.55in | 0in |
| Aug | 83°F | 63°F | 4.58in | 0in |
| Sep | 77°F | 56°F | 5.17in | 0in |
| Oct | 65°F | 44°F | 4.57in | 0in |
| Nov | 54°F | 34°F | 3.61in | 0.7in |
| Dec | 43°F | 27°F | 4.79in | 4.4in |
May, Jun, Jul, Aug, and Sep are the best time to see Coatesville at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Coatesville
Coatesville averages 52.12in of precipitation a year across roughly 131 days with measurable rain or snow, and 31.9in of snow a year.
Where Coatesville ranks
Coatesville ranks 3052 of 4876 US cities in this dataset for comfort score, and 100 of 193 within PA. About 13,390 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Coatesville 2 W, PA US, 2.2 miles from Coatesville, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure