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
With average high temperatures of 36.7°F (2.6°C) and lows of 27°F (-2.8°C), January is the coldest month.Humidity
In Westerly, Rhode Island, the average relative humidity in January is 75%.Rainfall
In January, in Westerly, the rain falls for 8.6 days. Throughout January, 2.24" (57mm) of precipitation is accumulated. In Westerly, during the entire year, the rain falls for 154.5 days and collects up to 31.46" (799mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In January, in Westerly, Rhode Island, it is snowing for 5.6 days. Throughout January, 1.26" (32mm) of snow is accumulated. In Westerly, during the entire year, snow falls for 18.6 days and aggregates up to 6.26" (159mm) of snow.Daylight
In January, the average length of the day is 9h and 35min.On the first day of the month, sunrise is at 7:13 am and sunset at 4:28 pm. On the last day of January, sunrise is at 6:59 am and sunset at 5:01 pm EST.
Sunshine
In Westerly, the average sunshine in January is 5.2h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What month is the coldest in Westerly?
How cold is January in Westerly?
What is the average humidity in January in Westerly?
How much does it rain in Westerly in January?
How much does it snow in Westerly in January?
How many hours of daylight does Westerly have in January?
When are sunrise and sunset in January in Westerly?
How long on average sun shines in January in Westerly?
When is the lowest UV index in Westerly?
What is the UV index intensity in January in Westerly?
Average temperature in January
Westerly, RI
- Average high temperature in January: 36.7°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in January: 27°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in January
Westerly, RI
- Average pressure in January: 30.02"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Westerly, RI
- Average wind speed in January: 12.5mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).
Average humidity in January
Westerly, RI
- Average humidity in January: 75%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in January
Westerly, RI
- Average rainfall in January: 2.24"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in January
Westerly, RI
- Average rainfall days in January: 8.6 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in January
Westerly, RI
- Average snowfall in January: 1.26"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Westerly, RI
- Average snowfall days in January: 5.6 days
The month with the highest number of snowfall days is January (5.6 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
Westerly, RI
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in January
Westerly, RI
- Average sunshine days in January: 17.4 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (11 days).
Average UV index in January
Westerly, RI
- Average UV index in January: 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 and December (UV index 2).
Average cloud cover in January
Westerly, RI
- Average cloud cover in January: 44
The months with the most cloud cover are March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Westerly, RI
- 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).
Westerly, Rhode Island, USA
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