December weather forecastPenacook, NH
December
Weather in December
The first month of the winter, December, is also an icy month in Penacook, New Hampshire, with an average temperature fluctuating between 33.1°F (0.6°C) and 22.8°F (-5.1°C).Temperature
As December arrives, Penacook's weather displays a decrease in high-temperatures, transitioning from November's chilly 44.4°F (6.9°C) to an icy 33.1°F (0.6°C). Penacook's average low-temperature during December nights is observed to be a subzero cold 22.8°F (-5.1°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Penacook, during December, the rain falls for 9.5 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 138.6 rainfall days, and 27.24" (692mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Penacook. In Penacook, during December, snow falls for 8.7 days and regularly aggregates up to 6.22" (158mm) of snow. Throughout the year, in Penacook, there are 48.2 snowfall days, and 30.71" (780mm) of snow is accumulated.Daylight
The month with the shortest days in Penacook, New Hampshire, is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:11 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:20 pm EST.
Sunshine
In December, the average sunshine is 4.6h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Penacook, NH
- Average high temperature in December: 33.1°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 (27.7°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in December
Penacook, NH
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Penacook, 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 (4.7mph).
Average humidity in December
Penacook, NH
- Average humidity in December: 81%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Penacook, NH
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Penacook, NH
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is April (15.2 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Penacook, NH
- Average snowfall in December: 6.22"
The month with the highest snowfall is February (7.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Penacook, NH
- Average snowfall days in December: 8.7 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Penacook, 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 36min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Penacook, NH
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in December
Penacook, 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, October, November and December (UV index 2).
Average cloud cover in December
Penacook, NH
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Penacook, NH
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
