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
Temperature records mark January as the coldest month, with highs averaging 36.1°F (2.3°C) and lows at 22.5°F (-5.3°C).Humidity
In Rock Oak, the average relative humidity in January is 77%.Rainfall
In January, in Rock Oak, the rain falls for 10.4 days. Throughout January, 1.81" (46mm) of precipitation is accumulated. Throughout the year, in Rock Oak, there are 166 rainfall days, and 25.83" (656mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Rock Oak. In Rock Oak, in January, during 9.1 snowfall days, 3.54" (90mm) of snow is typically accumulated. Throughout the year, in Rock Oak, there are 31.2 snowfall days, and 16.5" (419mm) of snow is accumulated.Daylight
In January, the average length of the day in Rock Oak is 9h and 47min.On the first day of the month, sunrise is at 7:34 am and sunset at 5:02 pm. On the last day of January, in Rock Oak, sunrise is at 7:22 am and sunset at 5:33 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.1h of sunshine.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 minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during January translates into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Rock Oak?
How cold is it in Rock Oak in January?
What is the average humidity in January in Rock Oak?
How much does it rain in Rock Oak in January?
How many days does it snow in January in Rock Oak?
What is the average length of the day in January in Rock Oak?
When are sunrise and sunset in January in Rock Oak?
What are the months with the least sunshine in Rock Oak?
How long on average sun shines in January in Rock Oak?
When is the lowest UV index in Rock Oak?
What is the UV index reading in January in Rock Oak?
Average temperature in January
Rock Oak, WV
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in January
Rock Oak, WV
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Rock Oak, WV
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in January
Rock Oak, WV
- Average humidity in January: 77%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in January
Rock Oak, WV
- Average rainfall in January: 1.81"
The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are February and November (1.73").
Average rainfall days in January
Rock Oak, WV
- Average rainfall days in January: 10.4 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in January
Rock Oak, WV
- Average snowfall in January: 3.54"
The month with the highest snowfall is March (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rock Oak, WV
- Average snowfall days in January: 9.1 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rock Oak, WV
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in January
Rock Oak, WV
- Average sunshine days in January: 14.3 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in January
Rock Oak, WV
- Average UV index in January: 2
The months with the highest UV index are June and July (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
Rock Oak, WV
- Average cloud cover in January: 47
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Rock Oak, WV
- Average visibility in January: 5mi
The months with the highest visibility are April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August, September and October (5mi).
Rock Oak, West Virginia, USA
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