Manchester, NH weather in May
In May, Manchester sees highs around 67°F and lows around 46°F: mild, with frequent rain. There are about 12 days with rain.
- Normal high
- 67°F
- Normal low
- 46°F
- Wet days
- 12
- 3.5 in total
- Muggy days
- 0
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 63°F | 71°F |
| Normal low | 41°F | 51°F |
| Chance of a wet day | 39% | 41% |
| Sunrise / sunset | 5:39 am / 7:46 pm | 5:09 am / 8:17 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 (4 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 snow12 of 31
- Notable rainat least 0.10 in7 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 3.5 in; a dry May brings about 2.4 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 74°F
- Coolest May2005: average high 60°F
- Wettest May2006: 11.1 in
- Driest May2008: 0.5 in
- Highest reading94°F (May 23, 1996)
- Lowest reading16°F (May 5, 2002)
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 | 56°F | 67°F | 76°F |
| Normal low | 35°F | 46°F | 56°F |
| Wet days | 11 | 12 | 13 |
| Comfortable days | 6 | 16 | 13 |
| Daylight | 13.4 h | 14.7 h | 15.3 h |
Highs change by +11°F from April and +9°F into June.
Nearby alternatives in May
- Warmer: Saratoga Springs, NY118 mi · high 73°F · 13 wet days
- Cooler: Kennebunkport, ME55 mi · high 62°F · 13 wet days
How Manchester ranks in May
- Normal high314th warmest of 378 cities; 4th of 4 in New Hampshire
- Wet days296th driest of 378
- Comfortable days80th most of 339
What to pack for Manchester in May
- A rain jacket or umbrella – rain on about 12 days
Heating and cooling
May has 282 heating degree days and 18 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How cold is Manchester in May?
The normal high is 67°F and the normal low is 46°F. From 1991 to 2020 the coldest May reading was 16°F (May 5, 2002).
Does it rain a lot in Manchester in May?
About 12 days in May have at least 0.01 in of precipitation, and the normal total is 3.5 in. The wettest May in 1991-2020 was in 2006 (11.1 in); the driest was in 2008 (0.5 in).
Is May a good time to visit Manchester?
May ranks 1st of 12 months on our comfort score for Manchester (73 out of 100). It has about 16 comfortable days and about 1 day at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature and frost dates: Massabesic Lake (USC00275211), 3.1 mi E of the city center, 253 ft . NOAA normals and daily records, 1991-2020.
- Rain, snowfall, snow depth and cloud cover: Concord Muni Airport (USW00014745), 14 mi N of the city center, 346 ft (92 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Manchester Airport (USW00014710), 4.4 mi S of the city center, 225 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Manchester Airport (743945-14710), 4.6 mi SSE of the city center, 229 ft . Hourly observations, 1991-2020.