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Weather & Climate
Westfield, Pennsylvania, United States
Overview
Climate data and monthly weather averages for Westfield.
Key Metrics
Annual Avg
7.6°C
Summer Avg
19.3°C
Winter Avg
-4.5°C
Record High
35.5°C
Record Low
-28.4°C
Annual Precipitation
991.5 mm
Avg Humidity
81%
Summer Humidity
76%
Winter Humidity
90%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 15.5° | -5.8° | -23.9° | 58.6 | 90% | 51 | 33.6 |
| Feb | 18.7° | -5° | -28.4° | 53.8 | 89% | 71 | 38.3 |
| Mar | 22.6° | -0.4° | -22.5° | 67 | 85% | 111 | 33.6 |
| Apr | 27.1° | 6.3° | -10.3° | 79.8 | 79% | 138 | 31 |
| May | 35° | 13° | -5° | 93.3 | 79% | 163 | 25.2 |
| Jun | 32.6° | 17.7° | 1.2° | 98.1 | 79% | 175 | 19.4 |
| Jul | 35.5° | 20.4° | 6.8° | 105.1 | 75% | 181 | 19.8 |
| Aug | 35° | 19.9° | 6.6° | 96.1 | 73% | 159 | 18.9 |
| Sep | 33.7° | 16.1° | 0.6° | 100.2 | 74% | 123 | 20.2 |
| Oct | 29.3° | 9.1° | -5.9° | 97.6 | 80% | 85 | 27.1 |
| Nov | 21.9° | 2.7° | -22.2° | 66.3 | 84% | 56 | 30.3 |
| Dec | 18.4° | -2.6° | -20.1° | 75.6 | 90% | 41 | 27.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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