May weather forecastCharlestown, NH
May
Weather in May
The last month of the spring, May, is a refreshing month in Charlestown, New Hampshire, with an average temperature fluctuating between 45.1°F (7.3°C) and 65.8°F (18.8°C).Temperature
Charlestown's transition into May is marked by a rise in the average high-temperature, advancing from a fresh 52°F (11.1°C) in April to a refreshing 65.8°F (18.8°C). Charlestown's average low-temperature is measured at a frosty 45.1°F (7.3°C) during May.Humidity
The average relative humidity in May is 75%.Rainfall
In May, in Charlestown, New Hampshire, the rain falls for 11.9 days. Throughout May, 1.34" (34mm) of precipitation is accumulated. In Charlestown, during the entire year, the rain falls for 113.5 days and collects up to 16.77" (426mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Charlestown aggregates 0.2" (5mm) of snow. In Charlestown, during the entire year, snow falls for 31 days and aggregates up to 16.22" (412mm) of snow.Daylight
In Charlestown, the average length of the day in May is 14h and 42min.On the first day of the month, sunrise is at 5:41 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:12 am and sunset at 8:22 pm EDT.
Sunshine
In Charlestown, the average sunshine in May is 8.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 5 suggests these recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Charlestown, NH
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in May: 45.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in May
Charlestown, NH
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Charlestown, NH
- Average wind speed in May: 6.3mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Charlestown, NH
- Average humidity in May: 75%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in May
Charlestown, NH
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is October (1.77").
The driest months (with the least rainfall) are January and March (1.06").
Average rainfall days in May
Charlestown, NH
- Average rainfall days in May: 11.9 days
The month with the highest number of rainy days is July (12.1 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Charlestown, NH
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Charlestown, NH
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Charlestown, NH
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in May
Charlestown, NH
- Average sunshine days in May: 16.5 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are April and June (16 days).
Average UV index in May
Charlestown, NH
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Charlestown, NH
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Charlestown, NH
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
