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
With the onset of December, Truro experiences a modest temperature adjustment, with the average high-temperature gently receding from a fresh 50.9°F (10.5°C) in November to a frosty 43.9°F (6.6°C). Throughout the nights in December, Truro notes an average low of 37.4°F (3°C), a small dip from the daytime peak.Humidity
In December, the average relative humidity is 75%.Rainfall
In Truro, Massachusetts, during December, the rain falls for 11.7 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, in Truro, there are 136.1 rainfall days, and 17.24" (438mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Truro, in December, during 4.7 snowfall days, 0.51" (13mm) of snow is typically accumulated. Throughout the year, in Truro, there are 22.1 snowfall days, and 2.95" (75mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Truro.On the first day of the month, sunrise is at 6:49 am and sunset at 4:09 pm. On the last day of December, in Truro, sunrise is at 7:08 am and sunset at 4:18 pm EST.
Sunshine
December has the least sunshine of the year in Truro, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index in Truro are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
Is it cold in Truro during December?
What is the average humidity in December in Truro?
How much does it rain in Truro in December?
How many days does it snow in December in Truro?
What is the month with the shortest days in Truro?
How many hours of daylight does Truro have in December?
When is the sunrise / sunset in December in Truro?
What is the month with the least sunshine in Truro?
How many hours of sunshine does Truro have in December?
What are the months with the lowest UV index in Truro?
What is the UV index reading in December in Truro?
Average temperature in December
Truro, MA
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 37.4°F
The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).
Average pressure in December
Truro, MA
- Average pressure in December: 30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Truro, MA
- Average wind speed in December: 18mph
The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).
Average humidity in December
Truro, MA
- Average humidity in December: 75%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in December
Truro, MA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").
Average rainfall days in December
Truro, MA
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Truro, MA
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Truro, MA
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Truro, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Truro, MA
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).
Average UV index in December
Truro, MA
- 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, November and December (UV index 2).
Average cloud cover in December
Truro, MA
- Average cloud cover in December: 55
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Truro, 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).
Truro, Massachusetts, USA
Weather forecast for your location
2. Allow the app to use your location
