Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Truro's January weather reaches an average high of 38.7°F (3.7°C) and an average low of 31.6°F (-0.2°C), making it the coldest month.Humidity
The average relative humidity in January is 75%.Rainfall
In Truro, in January, it is raining for 8.9 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, in Truro, there are 136.1 rainfall days, and 17.24" (438mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Truro, during January, snow falls for 6.1 days and regularly aggregates up to 0.91" (23mm) of snow. In Truro, during the entire year, snow falls for 22.1 days and aggregates up to 2.95" (75mm) of snow.Daylight
In Truro, the average length of the day in January is 9h and 32min.On the first day of January, sunrise is at 7:08 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:53 pm EST.
Sunshine
In January, the average sunshine is 4.5h.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 reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is January?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Truro have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Truro, MA
- Average high temperature in January: 38.7°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 January: 31.6°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 January
Truro, MA
- Average pressure in January: 29.99"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 January
Truro, MA
- Average wind speed in January: 18.5mph
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 January
Truro, MA
- Average humidity in January: 75%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in January
Truro, MA
- Average rainfall in January: 1.26"
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 January
Truro, MA
- Average rainfall days in January: 8.9 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 January
Truro, MA
- Average snowfall in January: 0.91"
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 January
Truro, MA
- Average snowfall days in January: 6.1 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 January /
Average sunshine in January
Truro, MA
- Average daylight in January: 9h and 3min
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 January: 4h and 3min
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 January
Truro, MA
- Average sunshine days in January: 13.3 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 January
Truro, MA
- Average UV index in January: 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 January
Truro, MA
- Average cloud cover in January: 53
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 January
Truro, MA
- Average visibility in January: 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
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