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 sea temperature 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
January is the month that records the lowest temperatures, with averages ranging from a high of 35.2°F (1.8°C) to a low of 25.5°F (-3.6°C).Humidity
The average relative humidity in January is 74%.Rainfall
In Westbrook, in January, it is raining for 9 days, with typically 2.52" (64mm) of accumulated precipitation. In Westbrook, during the entire year, the rain falls for 166.2 days and collects up to 34.8" (884mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Westbrook, Connecticut, in January, snow falls for 6.3 days, with typically accumulated 2.17" (55mm) of snow. Throughout the year, in Westbrook, there are 24.2 snowfall days, and 9.53" (242mm) of snow is accumulated.Ocean temperature
In Westbrook, in January, the average water temperature is 41.9°F (5.5°C).Note: Swimming at temperatures less than 50°F (10°C) in 41.9°F (5.5°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.
Daylight
The average length of the day in January is 9h and 36min.On the first day of January, sunrise is at 7:15 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:04 pm EST.
Sunshine
In January, the average sunshine is 5.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the ocean temperature in January?
How many hours of daylight does Westbrook have in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Westbrook, CT
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 25.5°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in January
Westbrook, CT
- Average pressure in January: 30.03"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
Westbrook, CT
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in January
Westbrook, CT
- Average humidity in January: 74%
The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Westbrook, CT
- Average rainfall in January: 2.52"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in January
Westbrook, CT
- Average rainfall days in January: 9 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).
Average snowfall in January
Westbrook, CT
- Average snowfall in January: 2.17"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Westbrook, CT
- Average snowfall days in January: 6.3 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Westbrook, CT
- Average sea temperature in January: 41.9°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in January /
Average sunshine in January
Westbrook, CT
- 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 18min).
- 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 48min).
Average sunshine days in January
Westbrook, CT
- Average sunshine days in January: 16 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in January
Westbrook, CT
- 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, November and December (UV index 2).
Average cloud cover in January
Westbrook, CT
- Average cloud cover in January: 45
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Westbrook, CT
- 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).
Westbrook, Connecticut, USA
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