Nashua weather by month
Average highs run from 34°F in January to 84°F in July, and January nights average 14°F. It gets 48 inches of rain and melted snow a year and 53 inches of snow. Nights drop below freezing about 155 times a year. The most comfortable months are May to September.
Best time to visit Nashua
For comfortable weather, go in May to September. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 34°F | 14°F | 3.4 in | 14.7 in | 7 | 0 | 30 | cold |
| February | 37°F | 15°F | 3.2 in | 14.5 in | 7 | 0 | 27 | cold |
| March | 45°F | 23°F | 4.3 in | 10.1 in | 7 | 0 | 26 | cold |
| April | 59°F | 34°F | 4.2 in | 0.7 in | 8 | 0 | 14 | cool |
| May | 70°F | 46°F | 3.9 in | 0.0 in | 8 | 1 | 1 | mild |
| June | 78°F | 56°F | 4.3 in | 0.0 in | 8 | 3 | 0 | warm |
| July | 84°F | 61°F | 3.7 in | 0.0 in | 7 | 6 | 0 | warm |
| August | 83°F | 59°F | 3.9 in | 0.0 in | 7 | 4 | 0 | warm |
| September | 75°F | 51°F | 4.1 in | 0.0 in | 6 | 1 | 0 | mild |
| October | 63°F | 39°F | 4.8 in | 0.0 in | 8 | 0 | 8 | mild days, chilly nights |
| November | 51°F | 30°F | 3.9 in | 1.7 in | 8 | 0 | 21 | cool |
| December | 40°F | 21°F | 4.5 in | 11.2 in | 8 | 0 | 28 | cold |
| Year | 60°F avg | 37°F avg | 48.2 in | 52.9 in | 89 | 15 | 155 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Nashua 2 NNW, NH (USC00275712), 1.8 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Nashua
The shortest day is December 21, with 9h 01m of daylight; the longest is June 21, with 15h 20m. The earliest sunset comes around December 4 (4:11 pm) and the latest around June 25 (8:28 pm). The sun sets after 8 pm on 84 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:13 am | 4:37 pm | 9h 23m |
| February | 6:43 am | 5:17 pm | 10h 34m |
| March | 6:58 am | 6:52 pm | 11h 54m |
| April | 6:04 am | 7:27 pm | 13h 23m |
| May | 5:23 am | 8:01 pm | 14h 38m |
| June | 5:07 am | 8:25 pm | 15h 18m |
| July | 5:21 am | 8:21 pm | 15h 00m |
| August | 5:52 am | 7:47 pm | 13h 55m |
| September | 6:25 am | 6:55 pm | 12h 29m |
| October | 6:59 am | 6:03 pm | 11h 04m |
| November | 6:38 am | 4:22 pm | 9h 44m |
| December | 7:09 am | 4:12 pm | 9h 03m |
Calculated for 2026 at the center of Nashua with NOAA's solar equations, in local clock time (Eastern Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Nashua getting warmer?
The last 10 years averaged 3.4°F warmer than the 20th century. See the climate stripes for Nashua.Frequently asked questions
What is the warmest month in Nashua?
July is the warmest month, with an average high of 84°F and an average low of 61°F (NOAA 1991-2020 normals).
What is the coldest month in Nashua?
January is the coldest, with average lows of 14°F and highs of 34°F.
What is the rainiest month in Nashua?
October gets the most precipitation, 4.8 inches on average. February is the driest at 3.2 inches.
Does it snow in Nashua?
Yes. Nashua averages 53 inches of snow a year.
When is the best time to visit Nashua?
For comfortable weather, May to September. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Nashua?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Nashua profile.
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