May weather forecastEpsom, NH
May
Weather in May
The last month of the spring, May, is a comfortable month in Epsom, New Hampshire, with an average temperature varying between 65.3°F (18.5°C) and 46.2°F (7.9°C).Temperature
The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a cool 53.2°F (11.8°C) in April to an enjoyable 65.3°F (18.5°C). An average nighttime temperature of 46.2°F (7.9°C) is witnessed throughout May.Humidity
In May, the average relative humidity is 76%.Rainfall
In Epsom, in May, during 15.7 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Epsom, during the entire year, the rain falls for 146.3 days and collects up to 29.92" (760mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Epsom aggregates 0.12" (3mm) of snow. Throughout the year, there are 44.9 snowfall days, and 32.95" (837mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 42min.On the first day of May, sunrise is at 5:37 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:08 am and sunset at 8:18 pm EDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 5 in May leads to these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Epsom, NH
- Average high temperature in May: 65.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in May: 46.2°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in May
Epsom, NH
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Epsom, NH
- Average wind speed in May: 6.2mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in May
Epsom, NH
- Average humidity in May: 76%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).
Average rainfall in May
Epsom, NH
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in May
Epsom, NH
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in May
Epsom, NH
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (8.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Epsom, NH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Epsom, 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 18min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Epsom, NH
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (13 days).
Average UV index in May
Epsom, NH
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Epsom, NH
- Average cloud cover in May: 47
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Epsom, 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).





