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
The lowest temperatures are recorded in January, with averages reaching a high of 32.9°F (0.5°C) and a low of 21.6°F (-5.8°C).Humidity
In January, the average relative humidity is 77%.Rainfall
In Lexington, during January, the rain falls for 7.3 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Lexington, there are 143.4 rainfall days, and 27.52" (699mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Lexington, Massachusetts, during January, snow falls for 7.9 days and regularly aggregates up to 3.23" (82mm) of snow. Throughout the year, there are 31.2 snowfall days, and 19.88" (505mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 29min.On the first day of the month, sunrise is at 7:14 am and sunset at 4:22 pm. On the last day of January, sunrise is at 6:59 am and sunset at 4:56 pm EST.
Sunshine
In Lexington, the average sunshine in January is 5.1h.UV index
In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Lexington have in January?
What is the UV index reading in January in Lexington?
Average temperature in January
Lexington, MA
- Average high temperature in January: 32.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in January: 21.6°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in January
Lexington, 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 (29.92"Hg).
Average wind speed in January
Lexington, MA
- Average wind speed in January: 9mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in January
Lexington, MA
- Average humidity in January: 77%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in January
Lexington, MA
- Average rainfall in January: 2.24"
The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in January
Lexington, MA
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Lexington, MA
- Average snowfall in January: 3.23"
The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Lexington, MA
- Average snowfall days in January: 7.9 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Lexington, MA
- Average daylight in January: 9h and 3min
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 6min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Lexington, MA
- Average sunshine days in January: 17.5 days
The months with the most sunshine days are January and November (17.5 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in January
Lexington, MA
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Lexington, MA
- Average cloud cover in January: 45
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Lexington, MA
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Lexington, Massachusetts, USA
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