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
Swansea's January weather reaches an average high of 36°F (2.2°C) and an average low of 25.2°F (-3.8°C), making it the coldest month.Humidity
The average relative humidity in January is 76%.Rainfall
In January, the rain falls for 7.7 days. Throughout January, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 135.4 rainfall days, and 18.31" (465mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In Swansea, in January, snow falls for 5.9 days, with typically accumulated 1.61" (41mm) of snow. Throughout the year, there are 21.2 snowfall days, and 7.17" (182mm) of snow is accumulated.Daylight
In Swansea, the average length of the day in January is 9h and 34min.On the first day of January, sunrise is at 7:11 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:58 pm EST.
Sunshine
The average sunshine in January in Swansea 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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during January leads to these advisories:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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 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 average length of the day in January?
When is the sunrise / sunset in January in Swansea?
How long on average sun shines in January?
When is the lowest UV index in Swansea?
What is the UV index intensity in January in Swansea?
Average temperature in January
Swansea, MA
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in January: 25.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in January
Swansea, MA
- Average pressure in January: 30.01"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
Swansea, MA
- Average wind speed in January: 10.9mph
The windiest months (with the highest average wind speed) are January, February and March (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in January
Swansea, MA
- Average humidity in January: 76%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Swansea, MA
- Average rainfall in January: 1.46"
The wettest month (with the highest rainfall) is October (1.97").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in January
Swansea, MA
- Average rainfall days in January: 7.7 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in January
Swansea, MA
- Average snowfall in January: 1.61"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Swansea, MA
- Average snowfall days in January: 5.9 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Swansea, MA
- 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: 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
Swansea, MA
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is April (13.6 days).
Average UV index in January
Swansea, MA
- 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
Swansea, MA
- Average cloud cover in January: 44
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Swansea, 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).
Swansea, Massachusetts, USA
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