Nashua, NH weather in May
Expect mild weather with frequent rain in Nashua in May, with highs near 69°F and lows near 46°F. Rain falls on about 13 days.
- Normal high
- 69°F
- Normal low
- 46°F
- Wet days
- 13
- 3.6 in total
- Muggy days
- 0
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 65°F | 73°F |
| Normal low | 40°F | 51°F |
| Chance of a wet day | 42% | 41% |
| Sunrise / sunset | 5:40 am / 7:45 pm | 5:10 am / 8:16 pm |
| Daylight | 14.1 h | 15.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical May day
- 6 am51°Fdew point 44°F
- 9 am60°Fdew point 43°F
- Noon66°Fdew point 42°F
- 3 pm67°Fdew point 42°F
- 6 pm64°Fdew point 43°F
- 9 pm58°Fdew point 44°F
NOAA hourly normals (local standard time) from Manchester Airport (12 mi away); average wind 7 mph; clear or few clouds in 49% of daytime hours, mostly cloudy or overcast in 44%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 31
- Hot dayshigh 90°F or more1 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow13 of 31
- Notable rainat least 0.10 in8 of 31
- Freezing nightslow 32°F or below2 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 3.6 in; a dry May brings about 2.1 in and a wet one about 4.4 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How May varies from year to year
- Warmest May, 1991-20202015: average high 77°F
- Coolest May2005: average high 61°F
- Wettest May2006: 11.7 in
- Driest May2015: 0.3 in
- Highest reading95°F (May 27, 2010)
- Lowest reading24°F (May 6, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 58°F | 69°F | 78°F |
| Normal low | 34°F | 46°F | 56°F |
| Wet days | 12 | 13 | 12 |
| Comfortable days | 7 | 16 | 12 |
| Daylight | 13.4 h | 14.6 h | 15.3 h |
Highs change by +11°F from April and +9°F into June.
Nearby alternatives in May
- Cooler: Kennebunkport, ME65 mi · high 62°F · 13 wet days
How Nashua ranks in May
- Normal high289th warmest of 378 cities; 2nd of 4 in New Hampshire
- Wet days341st driest of 378
- Comfortable days59th most of 339
What to pack for Nashua in May
- A rain jacket or umbrella – rain on about 13 days
Heating and cooling
May has 264 heating degree days and 25 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How cold is Nashua in May?
The normal high is 69°F and the normal low is 46°F. From 1991 to 2020 the coldest May reading was 24°F (May 6, 1992).
Does it rain a lot in Nashua in May?
About 13 days in May have at least 0.01 in of precipitation, and the normal total is 3.6 in. The wettest May in 1991-2020 was in 2006 (11.7 in); the driest was in 2015 (0.3 in).
Is May a good time to visit Nashua?
May ranks 1st of 12 months on our comfort score for Nashua (73 out of 100). It has about 16 comfortable days and about 1 day at 90°F or hotter. The best months are May and September.
Where the numbers come from
- Temperature, rain, snowfall and snow depth: Hudson 1 Sse (USC00274234), 3.0 mi ENE of the city center, 185 ft . NOAA normals and daily records, 1991-2020.
- Frost dates: Nashua 2 Nnw (USC00275712), 1.8 mi N of the city center, 135 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Manchester Airport (USW00014710), 12 mi N of the city center, 225 ft (66 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Cloud cover: Concord Muni Airport (USW00014745), 30 mi N of the city center, 346 ft (187 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Manchester Airport (743945-14710), 12 mi N of the city center, 229 ft (70 ft higher than the city). Hourly observations, 1991-2020.