December weather forecastDeerfield, NH
December
Weather in December
The first month of the winter, December, is also a wintry month in Deerfield, New Hampshire, with an average temperature varying between 24.1°F (-4.4°C) and 34.7°F (1.5°C).Temperature
The arrival of December corresponds with a temperature reduction, down from November's frosty 45.5°F (7.5°C) to a cold 34.7°F (1.5°C). Deerfield usually reports an average low-temperature of 24.1°F (-4.4°C) during the month of December.Humidity
The average relative humidity in December is 80%.Rainfall
In December, in Deerfield, the rain falls for 10.2 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. In Deerfield, during the entire year, the rain falls for 146.3 days and collects up to 29.92" (760mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Deerfield, New Hampshire. In Deerfield, in December, snow falls for 8 days, with typically accumulated 6.54" (166mm) of snow. Throughout the year, in Deerfield, there are 44.9 snowfall days, and 32.95" (837mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:57 am and sunset at 4:10 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:19 pm EST.
Sunshine
The average sunshine in December in Deerfield is 4.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Deerfield, NH
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in December
Deerfield, 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
Deerfield, NH
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Deerfield, NH
- Average humidity in December: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Deerfield, NH
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Deerfield, NH
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Deerfield, NH
- Average snowfall in December: 6.54"
The month with the highest snowfall is February (8.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Deerfield, NH
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Deerfield, NH
- Average daylight in December: 9h and 6min
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 48min
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 36min).
Average sunshine days in December
Deerfield, NH
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (13 days).
Average UV index in December
Deerfield, NH
- Average UV index in December: 2
The months with the highest UV index are June, 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
Deerfield, 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 33).
Average visibility in December
Deerfield, NH
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
