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
Jaco experiences its lowest average temperatures in January, reaching a peak of 34.5°F (1.4°C) and a minimum of 21.6°F (-5.8°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 84%.Rainfall
In Jaco, in January, it is raining for 11.1 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 187.8 rainfall days, and 36.46" (926mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Jaco. In Jaco, in January, snow falls for 17 days, with typically accumulated 7.4" (188mm) of snow. Throughout the year, in Jaco, West Virginia, there are 63.1 snowfall days, and 32.32" (821mm) of snow is accumulated.Daylight
In January, the average length of the day in Jaco is 9h and 44min.On the first day of the month, sunrise is at 7:40 am and sunset at 5:05 pm. On the last day of January, in Jaco, sunrise is at 7:28 am and sunset at 5:37 pm EST.
Sunshine
January has the least sunshine of the year in Jaco, with an average of 3h of sunshine.UV index
The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Jaco?
How cold is it in Jaco in January?
What are the most humid months in Jaco?
What is the average humidity in January in Jaco?
How much does it rain in Jaco in January?
How many days does it snow in January in Jaco?
What is the average length of the day in January in Jaco?
When are sunrise and sunset in January in Jaco?
What is the month with the least sunshine in Jaco?
How long on average sun shines in January in Jaco?
What is the UV index intensity in January in Jaco?
Average temperature in January
Jaco, WV
- Average high temperature in January: 34.5°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in January: 21.6°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 (21.6°F).
Average pressure in January
Jaco, WV
- Average pressure in January: 30.12"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
Jaco, WV
- Average wind speed in January: 7.4mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in January
Jaco, WV
- Average humidity in January: 84%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in January
Jaco, WV
- Average rainfall in January: 2.99"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in January
Jaco, WV
- Average rainfall days in January: 11.1 days
The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (11.1 days).
Average snowfall in January
Jaco, WV
- Average snowfall in January: 7.4"
The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Jaco, WV
- Average snowfall days in January: 17 days
The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jaco, WV
- Average daylight in January: 9h and 4min
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 24min).
- Average sunshine in January: 3h
The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 3h).
Average sunshine days in January
Jaco, WV
- Average sunshine days in January: 6.7 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.7 days).
Average UV index in January
Jaco, WV
- Average UV index in January: 2
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Jaco, WV
- Average cloud cover in January: 68
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in January
Jaco, WV
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Jaco, West Virginia, USA
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