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, known for its average high temperature of 39°F (3.9°C) and an average low temperature of 25.9°F (-3.4°C), is the coldest month.Humidity
In January, the average relative humidity is 81%.Rainfall
In Sylvester, in January, it is raining for 13.3 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, there are 183.9 rainfall days, and 35.35" (898mm) of precipitation is accumulated.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
The average length of the day in January in Sylvester is 9h and 53min.On the first day of the month, sunrise is at 7:42 am and sunset at 5:17 pm. On the last day of January, sunrise is at 7:31 am and sunset at 5:47 pm EST.
Sunshine
The month with the least sunshine is January, 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 low health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 2 in January translates into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. 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 part of the year is the coldest?
Is it cold during January?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How much does it snow in Sylvester in January?
How many hours of daylight does Sylvester have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Sylvester have in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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
Sylvester, 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).
Sylvester, West Virginia, USA
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