Weather information for the Nashua area is provided below. Average temperatures, climate details and current forecasts are included.
Monthly average temperatures and precipitation for Nashua are shown below.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 32° | 35° | 44° | 56° | 68° | 77° | 82° | 80° | 72° | 61° | 48° | 36° |
| Avg. Low | 10° | 11° | 22° | 32° | 44° | 52° | 58° | 56° | 48° | 36° | 27° | 16° |
| Daily Avg | 21° | 24° | 34° | 45° | 56° | 65° | 70° | 68° | 60° | 48° | 38° | 27° |
| Avg. Precip. | 3.3 in | 3.3 in | 3.6 in | 3.6 in | 3.5 in | 3.7 in | 3.3 in | 3.4 in | 3.3 in | 3.6 in | 4.4 in | 4.0 in |
| Note: All temperatures are in degrees Fahrenheit. | ||||||||||||
