Lancaster, PA
Climate overview — based on NOAA 1991-2020 normals from LANCASTER 2NE FLTR PLT, PA US.
Year-round temperatures (°F)
Climate summary
Lancaster has an annual average temperature of 53.7°F with about 44.2 inches of precipitation per year and 21.4 inches of snow. The warmest month is July (average high 87.0°F), and the coldest is January (average low 22.2°F). September is typically the wettest month (4.82 in) and February the driest (2.52 in). Snow typically falls from October through April.
Best time to visit Lancaster
Full guide →Climate change signal
All-time records →126 of 366 (34.4%) of Lancaster'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.
| 1940s | 2 | |
| 1950s | 0 | |
| 1970s | 14 | |
| 1980s | 56 | |
| 1990s | 69 | |
| 2000s | 61 | |
| 2010s | 85 | |
| 2020s | 79 |
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 | 39.9°F | 22.2°F | 31.0°F | 3.01 in | 6.1 in | 10 |
| February | 42.8°F | 23.6°F | 33.2°F | 2.52 in | 7.4 in | 9 |
| March | 52.0°F | 30.9°F | 41.4°F | 3.50 in | 3.4 in | 11 |
| April | 64.6°F | 40.5°F | 52.6°F | 3.54 in | 0.2 in | 11 |
| May | 74.5°F | 50.4°F | 62.4°F | 3.65 in | — | 13 |
| June | 82.7°F | 59.7°F | 71.2°F | 4.09 in | — | 11 |
| July | 87.0°F | 64.7°F | 75.9°F | 4.51 in | — | 10 |
| August | 85.1°F | 63.0°F | 74.1°F | 3.60 in | — | 10 |
| September | 78.2°F | 55.6°F | 66.9°F | 4.82 in | — | 10 |
| October | 66.4°F | 43.7°F | 55.1°F | 4.18 in | 0.3 in | 10 |
| November | 54.8°F | 34.0°F | 44.4°F | 3.26 in | 0.6 in | 10 |
| December | 44.4°F | 27.1°F | 35.7°F | 3.47 in | 3.4 in | 11 |
Climate twins of Lancaster
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).