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
The onset of December comes with a shift in the average high-temperature, falling from a wintry 40.8°F (4.9°C) in November to a freezing cold 29.3°F (-1.5°C). Lower Bartlett, during the month of December, experiences an average low-temperature of 18.7°F (-7.4°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Lower Bartlett, in December, it is raining for 11.9 days, with typically 3.27" (83mm) of accumulated precipitation. In Lower Bartlett, during the entire year, the rain falls for 173.8 days and collects up to 33.54" (852mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Lower Bartlett, in December, during 14.7 snowfall days, 9.21" (234mm) of snow is typically accumulated. Throughout the year, in Lower Bartlett, there are 80.5 snowfall days, and 59.25" (1505mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 7:00 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:16 pm EST.
Sunshine
The average sunshine in December is 4.4h.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Lower Bartlett have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Lower Bartlett, NH
- Average high temperature in December: 29.3°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in December: 18.7°F
The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
Lower Bartlett, 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 (29.91"Hg).
Average wind speed in December
Lower Bartlett, NH
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Lower Bartlett, NH
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in December
Lower Bartlett, NH
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Lower Bartlett, NH
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in December
Lower Bartlett, NH
- Average snowfall in December: 9.21"
The month with the highest snowfall is February (15.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lower Bartlett, NH
- Average snowfall days in December: 14.7 days
The month with the highest number of snowfall days is February (17.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lower Bartlett, NH
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Lower Bartlett, NH
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (7.7 days).
Average UV index in December
Lower Bartlett, NH
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in December
Lower Bartlett, NH
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
Lower Bartlett, NH
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April and September (4mi).
Lower Bartlett, New Hampshire, USA
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