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
Plymouth experiences its lowest average temperatures in January, reaching a peak of 32.5°F (0.3°C) and a minimum of 20.7°F (-6.3°C).Humidity
The average relative humidity in January is 77%.Rainfall
In January, the rain falls for 9.4 days. Throughout January, 2.4" (61mm) of precipitation is accumulated. Throughout the year, in Plymouth, there are 170 rainfall days, and 35.43" (900mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Plymouth, Connecticut. In Plymouth, in January, during 8 snowfall days, 3.43" (87mm) of snow is typically accumulated. In Plymouth, during the entire year, snow falls for 33.9 days and aggregates up to 18.43" (468mm) of snow.Daylight
In January, the average length of the day in Plymouth is 9h and 34min.On the first day of the month, sunrise is at 7:19 am and sunset at 4:32 pm. On the last day of January, sunrise is at 7:05 am and sunset at 5:05 pm EST.
Sunshine
The average sunshine in January is 4.9h.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 estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, a regular UV index of 2 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What time of the year is the coldest in Plymouth?
How cold is it in Plymouth in January?
What is the average humidity in January in Plymouth?
How much does it rain in Plymouth in January?
How much does it snow in Plymouth in January?
What is the average length of the day in January in Plymouth?
When are sunrise and sunset in January in Plymouth?
How long on average sun shines in January in Plymouth?
When is the lowest UV index in Plymouth?
How high is the UV index in January in Plymouth?
Average temperature in January
Plymouth, CT
- Average high temperature in January: 32.5°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in January: 20.7°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in January
Plymouth, CT
- Average pressure in January: 30.04"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Plymouth, CT
- Average wind speed in January: 8.4mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Plymouth, CT
- Average humidity in January: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Plymouth, CT
- Average rainfall in January: 2.4"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in January
Plymouth, CT
- Average rainfall days in January: 9.4 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in January
Plymouth, CT
- Average snowfall in January: 3.43"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Plymouth, CT
- Average snowfall days in January: 8 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Plymouth, CT
- Average daylight in January: 9h and 4min
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 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Plymouth, CT
- Average sunshine days in January: 16.7 days
The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is June (10 days).
Average UV index in January
Plymouth, 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
Plymouth, CT
- Average cloud cover in January: 46
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in January
Plymouth, CT
- Average visibility in January: 6mi
The months with the highest visibility are January, April, October, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August and September (5mi).
Plymouth, Connecticut, USA
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