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 tends to be the coldest month, with temperatures averaging a daily high of 39°F (3.9°C) and a low of 25.9°F (-3.4°C).Humidity
In Jeffrey, the average relative humidity in January is 81%.Rainfall
In Jeffrey, during January, the rain falls for 13.3 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Jeffrey, West Virginia, during the entire year, the rain falls for 183.9 days and collects up to 35.35" (898mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. The months with the most snowfall are January and February, with an average 5.12" (130mm) of accumulated snow.Daylight
In January, the average length of the day in Jeffrey is 9h and 53min.On the first day of the month, sunrise is at 7:43 am and sunset at 5:18 pm. On the last day of January, in Jeffrey, sunrise is at 7:32 am and sunset at 5:48 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index are January, February, 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, an average UV index of 2 transforms into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Jeffrey?
Is it cold in Jeffrey during January?
What is the average humidity in January in Jeffrey?
How many days does it rain in January in Jeffrey?
When does it snow the most in Jeffrey?
How much does it snow in Jeffrey in January?
What is the average length of the day in January in Jeffrey?
What time are sunrise and sunset in January in Jeffrey?
What is the month with the least sunshine in Jeffrey?
How long on average sun shines in January in Jeffrey?
When is the lowest UV index in Jeffrey?
What is the UV index intensity in January in Jeffrey?
Average temperature in January
Jeffrey, WV
- Average high temperature in January: 39°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in January: 25.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in January
Jeffrey, WV
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Jeffrey, WV
- Average wind speed in January: 6.6mph
The windiest months (with the highest average wind speed) are January and February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in January
Jeffrey, WV
- Average humidity in January: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).
Average rainfall in January
Jeffrey, WV
- Average rainfall in January: 2.8"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in January
Jeffrey, WV
- Average rainfall days in January: 13.3 days
The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (10.9 days).
Average snowfall in January
Jeffrey, WV
- Average snowfall in January: 5.12"
The months with the highest snowfall are January and February (5.12").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Jeffrey, WV
- Average snowfall days in January: 12.3 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jeffrey, 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 36min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Jeffrey, WV
- Average sunshine days in January: 10.1 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in January
Jeffrey, WV
- 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, November and December (UV index 2).
Average cloud cover in January
Jeffrey, WV
- Average cloud cover in January: 63
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Jeffrey, WV
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Jeffrey, West Virginia, USA
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