Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset brings a clear escalation in the average high-temperature, soaring from a chilly 44.4°F (6.9°C) in April to a mild 60.4°F (15.8°C). During May, the temperature tends to dip to an average of 40.6°F (4.8°C) at night.Humidity
May is the least humid month, with an average relative humidity of 77%.Rainfall
In May, the rain falls for 17.8 days. Throughout May, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 163.8 rainfall days, and 29.69" (754mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.1 snowfall days, in May, Errol aggregates 0.67" (17mm) of snow. In Errol, during the entire year, snow falls for 115.1 days and aggregates up to 67.48" (1714mm) of snow.Daylight
In Errol, the average length of the day in May is 14h and 51min.On the first day of May in Errol, sunrise is at 5:33 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:01 am and sunset at 8:22 pm EDT.
Sunshine
In Errol, New Hampshire, the average sunshine in May is 7.6h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 4 in May translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the least humid month?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May in Errol?
When are sunrise and sunset in May in Errol?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Errol, NH
- Average high temperature in May: 60.4°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (21.2°F).
- Average low temperature in May: 40.6°F
The month with the highest average low temperature is July (53.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in May
Errol, NH
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Errol, NH
- Average wind speed in May: 6.4mph
The windiest months (with the highest average wind speed) are February, March and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Errol, NH
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall in May
Errol, NH
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is February (2.17").
Average rainfall days in May
Errol, NH
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (7 days).
Average snowfall in May
Errol, NH
- Average snowfall in May: 0.67"
The month with the highest snowfall is February (13.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Errol, NH
- Average snowfall days in May: 1.1 days
The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Errol, NH
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in May
Errol, NH
- Average sunshine days in May: 10.9 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (4.9 days).
Average UV index in May
Errol, NH
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in May
Errol, NH
- Average cloud cover in May: 53
The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 44).
Average visibility in May
Errol, NH
- Average visibility in May: 5mi
The months with the highest visibility are May and June (5mi).
The months with the lowest visibility are January, February, March, April, July, August, September, October, November and December (4mi).
Errol, New Hampshire, USA
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