Hermitage, PA
Climate overview — based on NOAA 1991-2020 normals from MERCER, PA US.
Year-round temperatures (°F)
Avg high
Avg low
Climate summary
Hermitage has an annual average temperature of 48.5°F with about 0 inches of precipitation per year. The warmest month is July (average high 81.9°F), and the coldest is January (average low 16.1°F).
Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
43.7°F
warmest to coldest month
Best time to visit Hermitage
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Hermitage's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1950s | 91 | |
| 1960s | 61 | |
| 1970s | 48 | |
| 1980s | 52 | |
| 1990s | 60 | |
| 2000s | 54 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 34.9°F | 16.1°F | 25.5°F | in | — | — |
| February | 38.5°F | 17.3°F | 27.9°F | in | — | — |
| March | 48.4°F | 24.7°F | 36.5°F | in | — | — |
| April | 61.7°F | 33.9°F | 47.8°F | in | — | — |
| May | 71.2°F | 43.9°F | 57.6°F | in | — | — |
| June | 78.7°F | 53.2°F | 65.9°F | in | — | — |
| July | 81.9°F | 56.4°F | 69.2°F | in | — | — |
| August | 81.5°F | 55.9°F | 68.7°F | in | — | — |
| September | 75.2°F | 48.6°F | 61.9°F | in | — | — |
| October | 63.3°F | 38.2°F | 50.7°F | in | — | — |
| November | 50.3°F | 29.2°F | 39.7°F | in | — | — |
| December | 39.9°F | 21.3°F | 30.6°F | in | — | — |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when