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
In Charlestown, January is the month with the lowest recorded average temperatures, measuring a high of 37.6°F (3.1°C) and a low of 28.8°F (-1.8°C).Humidity
The average relative humidity in January in Charlestown is 75%.Rainfall
In Charlestown, during January, the rain falls for 8.8 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, in Charlestown, there are 154.7 rainfall days, and 32.01" (813mm) of precipitation is accumulated.Snowfall
Months with snowfall in Charlestown are January through March, November and December. In Charlestown, in January, during 4.9 snowfall days, 1.61" (41mm) of snow is typically accumulated. Throughout the year, there are 17.8 snowfall days, and 6.85" (174mm) of snow is accumulated.Daylight
The average length of the day in January in Charlestown is 9h and 35min.On the first day of January, sunrise is at 7:12 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:00 pm EST.
Sunshine
In January, the average sunshine 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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 2 during January leads to these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Charlestown?
How cold is January in Charlestown?
What is the average humidity in January in Charlestown?
How much does it rain in Charlestown in January?
How many days does it snow in January in Charlestown?
How many hours of daylight does Charlestown have in January?
When is the sunrise / sunset in January in Charlestown?
How many hours of sunshine does Charlestown have in January?
What are the months with the lowest UV index in Charlestown?
What is the UV index reading in January in Charlestown?
Average temperature in January
Charlestown, RI
- Average high temperature in January: 37.6°F
The warmest month (with the highest average high temperature) is August (76.1°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in January: 28.8°F
The months with the highest average low temperature are July and August (68.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in January
Charlestown, RI
- Average pressure in January: 30.02"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 January
Charlestown, RI
- Average wind speed in January: 14.8mph
The windiest month (with the highest average wind speed) is January (14.8mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity in January
Charlestown, RI
- Average humidity in January: 75%
The month with the highest relative humidity is June (82%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in January
Charlestown, RI
- Average rainfall in January: 2.6"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in January
Charlestown, RI
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in January
Charlestown, RI
- Average snowfall in January: 1.61"
The month with the highest snowfall is March (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Charlestown, RI
- Average snowfall days in January: 4.9 days
The month with the highest number of snowfall days is January (4.9 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
Charlestown, 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 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in January
Charlestown, RI
- Average sunshine days in January: 16.5 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in January
Charlestown, 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
Charlestown, RI
- Average cloud cover in January: 44
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Charlestown, 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).
Charlestown, Rhode Island, USA
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