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 sea temperature 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
Norfolk records the coldest temperatures in January, averaging a high of 45.9°F (7.7°C) and a low of 34.7°F (1.5°C).Humidity
The average relative humidity in January is 75%.Rainfall
In January, the rain falls for 8.4 days. Throughout January, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 151.9 rainfall days, and 20.35" (517mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 2.2 days and typically aggregates up to 0.47" (12mm) of snow.Ocean temperature
In Norfolk, in January, the average water temperature is 45.5°F (7.5°C).Note: While a brief time in 45.5°F (7.5°C) at 55.4°F (13°C) is already bracing, plunging below 50°F (10°C) can severely affect breathing and introduce a cold shock, relying on your physical state.
Daylight
The average length of the day in January in Norfolk is 9h and 59min.On the first day of the month, sunrise is at 7:17 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:28 pm EST.
Sunshine
The average sunshine in January is 5.5h.UV index
January is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the average January temperature?
What is the average humidity in January?
How many days does it rain in January?
When does it snow the most?
How many days does it snow in January?
How cold is the water in January?
How many hours of daylight does Norfolk have in January?
What time 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 reading in January?
Average temperature in January
Norfolk, VA
- Average high temperature in January: 45.9°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in January: 34.7°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure in January
Norfolk, VA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in January
Norfolk, VA
- Average wind speed in January: 10.1mph
The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).
Average humidity in January
Norfolk, VA
- Average humidity in January: 75%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and November (74%).
Average rainfall in January
Norfolk, VA
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is August (2.52").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days in January
Norfolk, VA
- Average rainfall days in January: 8.4 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in January
Norfolk, VA
- Average snowfall in January: 0.47"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Norfolk, VA
- Average snowfall days in January: 2.2 days
The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in January
Norfolk, VA
- Average sea temperature in January: 45.5°F
The best month for swimming (with the highest average sea temperature) is August (80°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).
Average daylight in January /
Average sunshine in January
Norfolk, VA
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in January
Norfolk, VA
- Average sunshine days in January: 19 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in January
Norfolk, VA
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in January
Norfolk, VA
- Average cloud cover in January: 39
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in January
Norfolk, VA
- 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).
Norfolk, Virginia, USA
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