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
A decrease in the average high-temperature is observed during December, shifting from an icy 42.4°F (5.8°C) in November to a freezing cold 30.6°F (-0.8°C). Nighttime temperature in Effingham Falls experiences an average drop to 20.3°F (-6.5°C) in December.Humidity
The average relative humidity in December in Effingham Falls is 81%.Rainfall
In December, the rain falls for 12 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. In Effingham Falls, during the entire year, the rain falls for 156.4 days and collects up to 27.09" (688mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Effingham Falls, New Hampshire, in December, snow falls for 11.3 days, with typically accumulated 7.36" (187mm) of snow. In Effingham Falls, during the entire year, snow falls for 62.3 days and aggregates up to 42.32" (1075mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 6:58 am and sunset at 4:08 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:16 pm EST.
Sunshine
The average sunshine in December is 4.7h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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 Effingham Falls have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Effingham Falls, NH
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Effingham Falls, 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
Effingham Falls, NH
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is January (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Effingham Falls, NH
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in December
Effingham Falls, NH
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Effingham Falls, NH
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Effingham Falls, NH
- Average snowfall in December: 7.36"
The month with the highest snowfall is February (11.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Effingham Falls, NH
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is February (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Effingham Falls, NH
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 4min
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 24min).
Average sunshine days in December
Effingham Falls, NH
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is April (10.6 days).
Average UV index in December
Effingham Falls, NH
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Effingham Falls, NH
- Average cloud cover in December: 50
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Effingham Falls, NH
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Effingham Falls, New Hampshire, USA
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