May weather forecastPlymouth, NH
May
Weather in May
May's arrival is highlighted by vibrant spring colors in Plymouth. With an average high temperature hovering around 63.3°F (17.4°C), the season gets warmer and sunnier. Fewer snow showers result in rainfall being the predominant weather event, accounting for 1.38" (35mm). Days become significantly longer and the wind speed decreases, offering excellent conditions for outdoor recreation. As the city bids farewell to May, the alignment of atmospheric parameters paves the way for June's summer arrival.Temperature
May indicates a change in the average high-temperature, moving up from a chilly 49.1°F (9.5°C) in April to a comfortable 63.3°F (17.4°C). In May, Plymouth's temperature tends to fall to an average low of 43.2°F (6.2°C) during the night.Humidity
The least humid month is May, with an average relative humidity of 76%.Rainfall
In Plymouth, New Hampshire, in May, during 14 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, in Plymouth, there are 136.5 rainfall days, and 13.54" (344mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.5 snowfall days, in May, Plymouth aggregates 0.71" (18mm) of snow. Throughout the year, in Plymouth, there are 77.2 snowfall days, and 22.52" (572mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 45min.On the first day of the month, sunrise is at 5:37 am and sunset at 7:49 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:21 pm EDT.
Sunshine
In Plymouth, New Hampshire, the average sunshine in May is 8.2h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 during May leads to these advisories:
Take necessary precautions - Suggestions to elude sunburn are provided. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Plymouth, NH
- Average high temperature in May: 63.3°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in May: 43.2°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in May
Plymouth, NH
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Plymouth, NH
- Average wind speed in May: 5.8mph
The windiest months (with the highest average wind speed) are January, February and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Plymouth, NH
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (76%).
Average rainfall in May
Plymouth, NH
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is October (1.5").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in May
Plymouth, NH
- Average rainfall days in May: 14 days
The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in May
Plymouth, NH
- Average snowfall in May: 0.71"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Plymouth, NH
- Average snowfall days in May: 1.5 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Plymouth, NH
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in May
Plymouth, NH
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in May
Plymouth, NH
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Plymouth, NH
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in May
Plymouth, NH
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
