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
Welcoming December, Rollinsford observes a shift in the average high-temperature, falling from November's frosty 46°F (7.8°C) to an icy 35.6°F (2°C). During the month of December, an average low-temperature of 24.6°F (-4.1°C) is recorded.Humidity
In December, the average relative humidity is 80%.Rainfall
The months with the most rainfall are October and December, with an average 3.11" (79mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 7.2 days and accumulates 6.69" (170mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 6:56 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:17 pm EST.
Sunshine
In Rollinsford, the average sunshine in December is 4.8h.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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Rollinsford?
What is the average humidity in December in Rollinsford?
What is the wettest month?
How many days does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Rollinsford have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Rollinsford have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December in Rollinsford?
Average temperature in December
Rollinsford, NH
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 24.6°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in December
Rollinsford, 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
Rollinsford, NH
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Rollinsford, NH
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Rollinsford, NH
- Average rainfall in December: 3.11"
The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Rollinsford, NH
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Rollinsford, NH
- Average snowfall in December: 6.69"
The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rollinsford, NH
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rollinsford, NH
- Average daylight in December: 9h and 0min
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 December: 4h and 5min
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 42min).
Average sunshine days in December
Rollinsford, NH
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).
Average UV index in December
Rollinsford, 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
Rollinsford, NH
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Rollinsford, NH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Rollinsford, New Hampshire, USA
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