May weather forecastDover, NH
May
Weather in May
May in Dover intensifies the spring weather with a significant rise in temperatures, approaching summer-like warmth, and leaving behind April’s sporadic cool snaps. Noticeable is the spike in relative humidity to 78%, along with rainfall measures of 1.73" (44mm). As the month progresses towards June, the weather continues to warm, hinting at the imminent arrival of summer. This month proves to be perfect for exploring Dover's outdoor attractions like Cocheco River, flower festivals, farmers markets, and numerous parks draped in vibrant green.Temperature
Dover's weather shows a temperature rise with the arrival of May, moving from a fresh 50.5°F (10.3°C) in April to a comfortable 61.2°F (16.2°C). Dover encounters an average low-temperature of 47.3°F (8.5°C) during May nights.Humidity
In Dover, New Hampshire, the average relative humidity in May is 78%.Rainfall
In Dover, in May, during 14.1 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Dover, during the entire year, the rain falls for 130.8 days and collects up to 22.24" (565mm) of precipitation.Snowfall
In Dover, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 41min.On the first day of the month, sunrise is at 5:35 am and sunset at 7:45 pm. On the last day of May, in Dover, sunrise is at 5:06 am and sunset at 8:16 pm EDT.
Sunshine
The average sunshine in May is 8.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Dover, NH
- Average high temperature in May: 61.2°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in May: 47.3°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in May
Dover, 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
Dover, NH
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in May
Dover, NH
- Average humidity in May: 78%
The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are April and November (75%).
Average rainfall in May
Dover, NH
- Average rainfall in May: 1.73"
The wettest months (with the highest rainfall) are June and December (2.13").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in May
Dover, NH
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is July (14.6 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in May
Dover, NH
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Dover, NH
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Dover, 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 30min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in May
Dover, NH
- Average sunshine days in May: 14.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in May
Dover, NH
- Average UV index in May: 5
The months with the highest UV index are 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
Dover, NH
- Average cloud cover in May: 45
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Dover, NH
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
