Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December weather in Exeter is marked by a drop in the average high-temperature, falling from a frosty 47.8°F (8.8°C) in November to a wintry 37.6°F (3.1°C). The average nighttime temperature lowers to a freezing cold 27.3°F (-2.6°C) throughout December.Humidity
In Exeter, New Hampshire, the average relative humidity in December is 78%.Rainfall
In December, the rain falls for 4.3 days. Throughout December, 0.55" (14mm) of precipitation is accumulated. Throughout the year, there are 71.7 rainfall days, and 5.28" (134mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. December is the month with the most snowfall in Exeter. Snow falls for 2.9 days and accumulates 0.75" (19mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Exeter, New Hampshire.On the first day of December, sunrise is at 6:55 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:19 pm EST.
Sunshine
In December, the average sunshine in Exeter is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Exeter?
What is the average humidity in December in Exeter?
How many days does it rain in December in Exeter?
What is the snowiest month in Exeter?
How many days does it snow in December in Exeter?
What is the month with the shortest days in Exeter?
What is the average length of the day in December in Exeter?
What time are sunrise and sunset in December in Exeter?
How many hours of sunshine does Exeter have in December?
When is the lowest UV index in Exeter?
How high is the UV index in December in Exeter?
Average temperature in December
Exeter, NH
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Exeter, NH
- Average pressure in December: 30.03"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 December
Exeter, NH
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Exeter, NH
- Average humidity in December: 78%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Exeter, NH
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is November (0.63").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
Exeter, NH
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is July (8.1 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Exeter, NH
- Average snowfall in December: 0.75"
The month with the highest snowfall is December (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Exeter, NH
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Exeter, NH
- Average daylight in December: 9h and 1min
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 6min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Exeter, NH
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is December (24.5 days).
The month with the least sunshine days is July (19.8 days).
Average UV index in December
Exeter, NH
- Average UV index in December: 2
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 December
Exeter, NH
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Exeter, NH
- Average visibility in December: 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).
Exeter, New Hampshire, USA
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