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
The onset of December introduces a moderate change in Camp Welch's weather, with average high-temperatures falling from November's cool 50.7°F (10.4°C) to a cold 41.7°F (5.4°C). Camp Welch records a mean low-temperature of 30.9°F (-0.6°C) in December.Humidity
The average relative humidity in December is 76%.Rainfall
December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 3.27" (83mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Camp Welch. In Camp Welch, during December, snow falls for 4.7 days and regularly aggregates up to 2.56" (65mm) of snow. In Camp Welch, during the entire year, snow falls for 26.8 days and aggregates up to 13.66" (347mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:52 am and sunset at 4:14 pm. On the last day of December, sunrise is at 7:11 am and sunset at 4:23 pm EST.
Sunshine
In Camp Welch, the average sunshine in December 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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold does it get in Camp Welch in December?
What is the average humidity in December in Camp Welch?
What is the rainiest month in Camp Welch?
How many days does it rain in December in Camp Welch?
How much does it snow in Camp Welch in December?
What is the month with the shortest days in Camp Welch?
What is the average length of the day in December in Camp Welch?
When is the sunrise / sunset in December in Camp Welch?
How many hours of sunshine does Camp Welch have in December?
When is the lowest UV index in Camp Welch?
How high is the UV index in December in Camp Welch?
Average temperature in December
Camp Welch, MA
- Average high temperature in December: 41.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in December
Camp Welch, MA
- 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 (29.93"Hg).
Average wind speed in December
Camp Welch, MA
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Camp Welch, MA
- Average humidity in December: 76%
The months with the highest relative humidity are June, July and September (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Camp Welch, MA
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in December
Camp Welch, MA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is April (16 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in December
Camp Welch, MA
- Average snowfall in December: 2.56"
The months with the highest snowfall are February and March (3.62").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Camp Welch, MA
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Camp Welch, MA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 4h and 5min
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
Camp Welch, MA
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in December
Camp Welch, MA
- 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
Camp Welch, MA
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Camp Welch, MA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Camp Welch, Massachusetts, USA
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