Johnstown, PA
Climate overview — based on NOAA 1991-2020 normals from JOHNSTOWN CAMBRIA CO AP, PA US.
Year-round temperatures (°F)
Climate summary
Johnstown has an annual average temperature of 48.9°F with about 41.3 inches of precipitation per year. The warmest month is July (average high 78.6°F), and the coldest is January (average low 19.2°F). June is typically the wettest month (4.40 in) and February the driest (2.53 in).
Best time to visit Johnstown
Full guide →Climate change signal
All-time records →201 of 366 (54.9%) of Johnstown'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.
| 2000s | 118 | |
| 2010s | 144 | |
| 2020s | 104 |
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 | 33.4°F | 19.2°F | 26.3°F | 2.54 in | — | 15 |
| February | 36.3°F | 21.2°F | 28.7°F | 2.53 in | — | 14 |
| March | 44.7°F | 28.0°F | 36.4°F | 3.12 in | — | 14 |
| April | 57.9°F | 38.4°F | 48.1°F | 3.54 in | — | 14 |
| May | 68.2°F | 48.8°F | 58.5°F | 4.12 in | — | 17 |
| June | 74.9°F | 57.2°F | 66.0°F | 4.40 in | — | 15 |
| July | 78.6°F | 61.2°F | 69.9°F | 4.22 in | — | 15 |
| August | 77.1°F | 60.0°F | 68.6°F | 3.95 in | — | 14 |
| September | 70.5°F | 52.7°F | 61.6°F | 3.99 in | — | 12 |
| October | 59.4°F | 42.7°F | 51.1°F | 3.06 in | — | 15 |
| November | 47.4°F | 32.8°F | 40.1°F | 3.11 in | — | 13 |
| December | 37.8°F | 24.6°F | 31.2°F | 2.68 in | — | 15 |
Climate twins of Johnstown
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).