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
Witnessing a clear rise in May, the average high-temperature escalates from April's frosty 46°F (7.8°C) to an enjoyable 61.7°F (16.5°C). An average minimum temperature of 41.4°F (5.2°C) marks the month of May in Jefferson.Humidity
With an average relative humidity of 77%, May is the least humid month.Rainfall
In Jefferson, in May, it is raining for 18.2 days, with typically 2.8" (71mm) of accumulated precipitation. In Jefferson, during the entire year, the rain falls for 159.6 days and collects up to 31.97" (812mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.6 snowfall days, in May, Jefferson aggregates 1.65" (42mm) of snow. Throughout the year, there are 109.1 snowfall days, and 71.5" (1816mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 49min.On the first day of May, sunrise is at 5:35 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:04 am and sunset at 8:22 pm EDT.
Sunshine
In May, the average sunshine is 7.7h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 4 in May interprets into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the least humid month?
What is the average humidity in May in Jefferson?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Jefferson have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Jefferson have in May?
How high is the UV index in May?
Average temperature in May
Jefferson, NH
- Average high temperature in May: 61.7°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in May: 41.4°F
The month with the highest average low temperature is July (53.8°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in May
Jefferson, NH
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Jefferson, NH
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Jefferson, NH
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (77%).
Average rainfall in May
Jefferson, NH
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in May
Jefferson, NH
- Average rainfall days in May: 18.2 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in May
Jefferson, NH
- Average snowfall in May: 1.65"
The month with the highest snowfall is February (14.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Jefferson, NH
- Average snowfall days in May: 1.6 days
The month with the highest number of snowfall days is January (21.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Jefferson, 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 month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in May
Jefferson, NH
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (7 days).
Average UV index in May
Jefferson, 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 January, February and December (UV index 1).
Average cloud cover in May
Jefferson, NH
- Average cloud cover in May: 52
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in May
Jefferson, NH
- Average visibility in May: 5mi
The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).
Jefferson, New Hampshire, USA
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