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 its high average temperature of 33.4°F (0.8°C) and a low of 21.6°F (-5.8°C), January is regarded as the coldest month.Humidity
In January, the average relative humidity is 77%.Rainfall
In Norfolk, in January, during 6.2 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 116.7 rainfall days, and 10.91" (277mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Norfolk. In Norfolk, during January, snow falls for 5.8 days and regularly aggregates up to 0.98" (25mm) of snow. Throughout the year, there are 23.4 snowfall days, and 6.02" (153mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 31min.On the first day of the month, sunrise is at 7:13 am and sunset at 4:23 pm. On the last day of January, sunrise is at 6:59 am and sunset at 4:57 pm EST.
Sunshine
In January, the average sunshine 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 of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 2 in January transforms into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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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?
How many hours of daylight does Norfolk have in January?
When are sunrise and sunset in January?
How long on average sun shines in January in Norfolk?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Norfolk, MA
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in January: 21.6°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in January
Norfolk, 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
Norfolk, MA
- Average wind speed in January: 8.9mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in January
Norfolk, MA
- Average humidity in January: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in January
Norfolk, MA
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in January
Norfolk, MA
- Average rainfall days in January: 6.2 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in January
Norfolk, MA
- Average snowfall in January: 0.98"
The month with the highest snowfall is March (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Norfolk, MA
- Average snowfall days in January: 5.8 days
The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Norfolk, 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 12min).
- 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 42min).
Average sunshine days in January
Norfolk, MA
- Average sunshine days in January: 19.7 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (14.6 days).
Average UV index in January
Norfolk, 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
Norfolk, 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 35).
Average visibility in January
Norfolk, MA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).
Norfolk, Massachusetts, USA
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