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
January, with average temperatures reaching a high of 36.5°F (2.5°C) and a low of 23.4°F (-4.8°C), is the coldest month.Humidity
The months with the highest humidity in Napier are January and February, with an average relative humidity of 83%.Rainfall
In Napier, West Virginia, in January, during 13.5 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Napier, West Virginia, during the entire year, the rain falls for 195.1 days and collects up to 38.98" (990mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Napier. January is the month with the most snowfall. Snow falls for 16.5 days and accumulates 8.46" (215mm) of snow.Daylight
The average length of the day in January in Napier, West Virginia, is 9h and 49min.On the first day of January in Napier, sunrise is at 7:40 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:42 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 3.7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Napier?
How cold is January in Napier?
What is the most humid month in Napier?
What is the average humidity in January in Napier?
How much does it rain in Napier in January?
When does it snow the most in Napier?
How many days does it snow in January in Napier?
How many hours of daylight does Napier have in January?
When are sunrise and sunset in January in Napier?
What is the month with the least sunshine in Napier?
How long on average sun shines in January in Napier?
When is the lowest UV index in Napier?
What is the UV index intensity in January in Napier?
Average temperature in January
Napier, WV
- Average high temperature in January: 36.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
Napier, WV
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in January
Napier, WV
- Average wind speed in January: 7mph
The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in January
Napier, WV
- Average humidity in January: 83%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, August and November (77%).
Average rainfall in January
Napier, WV
- Average rainfall in January: 3.03"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in January
Napier, WV
- Average rainfall days in January: 13.5 days
The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is February (12.9 days).
Average snowfall in January
Napier, WV
- Average snowfall in January: 8.46"
The month with the highest snowfall is January (8.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Napier, WV
- Average snowfall days in January: 16.5 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Napier, WV
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Napier, WV
- Average sunshine days in January: 7.3 days
The month with the most sunshine days is October (14.3 days).
The months with the least sunshine days are January and February (7.3 days).
Average UV index in January
Napier, WV
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Napier, WV
- Average cloud cover in January: 64
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Napier, WV
- Average visibility in January: 4mi
The months with the highest visibility are April and November (6mi).
The month with the lowest visibility is January (4mi).
Napier, West Virginia, USA
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