Dover, NH
Climate overview — based on NOAA 1991-2020 normals from DURHAM 2 N, NH US.
Year-round temperatures (°F)
Climate summary
Dover has an annual average temperature of 47.1°F with about 47.8 inches of precipitation per year. The warmest month is July (average high 80.5°F), and the coldest is January (average low 14.8°F). October is typically the wettest month (4.79 in) and January the driest (3.38 in).
Best time to visit Dover
Full guide →Climate change signal
All-time records →194 of 366 (53%) of Dover'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 | 106 | |
| 2010s | 144 | |
| 2020s | 116 |
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 | 32.4°F | 14.8°F | 23.6°F | 3.38 in | — | 11 |
| February | 35.5°F | 16.4°F | 25.9°F | 3.52 in | — | 11 |
| March | 43.2°F | 24.5°F | 33.8°F | 4.39 in | — | 12 |
| April | 55.4°F | 33.8°F | 44.6°F | 4.20 in | — | 13 |
| May | 65.9°F | 44.1°F | 55.0°F | 3.80 in | — | 13 |
| June | 74.9°F | 53.3°F | 64.1°F | 4.28 in | — | 13 |
| July | 80.5°F | 59.0°F | 69.7°F | 3.76 in | — | 12 |
| August | 79.7°F | 57.3°F | 68.5°F | 3.43 in | — | 11 |
| September | 71.7°F | 49.8°F | 60.8°F | 3.86 in | — | 9 |
| October | 60.1°F | 39.0°F | 49.6°F | 4.79 in | — | 12 |
| November | 48.2°F | 30.3°F | 39.3°F | 3.95 in | — | 11 |
| December | 37.8°F | 21.6°F | 29.7°F | 4.47 in | — | 13 |
Climate twins of Dover
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).