December weather forecastNashua, NH
December
Weather in December
Finally, December signifies the full swing of winter weather in Nashua, with an average high temperature of 36.5°F (2.5°C) and a low of 25.7°F (-3.5°C). In addition to the dip in temperatures, the amount of snowfall also experiences a notable increase. Despite the extreme cold and frequent snow showers, the city has a unique charm with glistening landscapes and festive decorations. The wind intensifies, bringing sharp gusts that emphasize the winter chill. Whilst daylight may be scarcer, periods of sunshine provide momentary, albeit welcomed, relief from the winter conditions.Temperature
A shift in the average high-temperature occurs in December, reducing from a chilly 47.3°F (8.5°C) in November to an icy 36.5°F (2.5°C). Nashua's average low-temperature for the month of December records at a subzero cold 25.7°F (-3.5°C).Humidity
The average relative humidity in December in Nashua is 79%.Rainfall
In Nashua, in December, it is raining for 6.1 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, there are 91.2 rainfall days, and 7.24" (184mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The months with the most snowfall are February and December, with an average 1.26" (32mm) of accumulated snow.Daylight
The month with the shortest days in Nashua is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 6:57 am and sunset at 4:13 pm. On the last day of December, in Nashua, sunrise is at 7:16 am and sunset at 4:22 pm EST.
Sunshine
In Nashua, the average sunshine in December is 4.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Nashua, NH
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Nashua, NH
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Nashua, NH
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Nashua, NH
- Average humidity in December: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Nashua, NH
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is November (0.79").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in December
Nashua, NH
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is June (10.4 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in December
Nashua, NH
- Average snowfall in December: 1.26"
The months with the highest snowfall are February and December (1.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Nashua, NH
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Nashua, 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 54min
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
Nashua, NH
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (17.3 days).
Average UV index in December
Nashua, 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, November and December (UV index 2).
Average cloud cover in December
Nashua, 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 34).
Average visibility in December
Nashua, NH
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August, September and October (5mi).
