December weather forecastPlainfield, MA
December
Weather in December
December, the first month of the winter in Plainfield, is still a cold month, with an average temperature varying between 22.1°F (-5.5°C) and 32.9°F (0.5°C).Temperature
December brings a minor decrease, with the average high-temperature reducing from a frosty 43.7°F (6.5°C) in November to a wintry 32.9°F (0.5°C). December generally records an average low-temperature of 22.1°F (-5.5°C).Humidity
The average relative humidity in December is 85%.Rainfall
In Plainfield, in December, it is raining for 12.4 days, with typically 3.62" (92mm) of accumulated precipitation. In Plainfield, during the entire year, the rain falls for 171.8 days and collects up to 37.28" (947mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Plainfield, during December, snow falls for 9.6 days and regularly aggregates up to 6.65" (169mm) of snow. In Plainfield, during the entire year, snow falls for 58.7 days and aggregates up to 36.73" (933mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:28 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Plainfield, MA
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in December
Plainfield, MA
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Plainfield, MA
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Plainfield, MA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Plainfield, MA
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is October (3.66").
The driest month (with the least rainfall) is September (2.56").
Average rainfall days in December
Plainfield, MA
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Plainfield, MA
- Average snowfall in December: 6.65"
The month with the highest snowfall is February (10.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Plainfield, MA
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Plainfield, MA
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Plainfield, MA
- Average sunshine days in December: 12.1 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is June (10 days).
Average UV index in December
Plainfield, MA
- Average UV index in December: 1
The months with the highest UV index are May, 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
Plainfield, MA
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Plainfield, MA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
