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
With average high and low temperatures of 31.5°F (-0.3°C) and 19.8°F (-6.8°C) respectively, January is South Lancaster's coldest month.Humidity
The average relative humidity in January is 79%.Rainfall
In South Lancaster, in January, during 8.2 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In South Lancaster, during the entire year, the rain falls for 150.4 days and collects up to 28.86" (733mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 8.7 days. Throughout January, 4.06" (103mm) of snow is accumulated. In South Lancaster, during the entire year, snow falls for 36.5 days and aggregates up to 23.82" (605mm) of snow.Daylight
In South Lancaster, the average length of the day in January is 9h and 29min.On the first day of the month, sunrise is at 7:16 am and sunset at 4:24 pm. On the last day of January, in South Lancaster, sunrise is at 7:01 am and sunset at 4:58 pm EST.
Sunshine
In South Lancaster, the average sunshine in January is 5h.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 minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What time of the year is the coldest in South Lancaster?
How cold is January in South Lancaster?
What is the average humidity in January in South Lancaster?
How much does it rain in South Lancaster in January?
How much does it snow in South Lancaster in January?
What is the average length of the day in January in South Lancaster?
When are sunrise and sunset in January in South Lancaster?
How long on average sun shines in January in South Lancaster?
What is the month with the lowest UV index in South Lancaster?
What is the UV index reading in January in South Lancaster?
Average temperature in January
South Lancaster, MA
- Average high temperature in January: 31.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in January: 19.8°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in January
South Lancaster, 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
South Lancaster, MA
- Average wind speed in January: 8.6mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in January
South Lancaster, MA
- Average humidity in January: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall in January
South Lancaster, 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 (1.57").
Average rainfall days in January
South Lancaster, MA
- Average rainfall days in January: 8.2 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in January
South Lancaster, MA
- Average snowfall in January: 4.06"
The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
South Lancaster, MA
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
South Lancaster, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
South Lancaster, MA
- Average sunshine days in January: 16.5 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in January
South Lancaster, 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, November and December (UV index 2).
Average cloud cover in January
South Lancaster, 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 34).
Average visibility in January
South Lancaster, MA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, October, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August and September (5mi).
South Lancaster, Massachusetts, USA
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