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
With the onset of January, the average high-temperature stands at a still wintry 40.8°F (4.9°C), closely aligned with December's 39.2°F (4°C). In Greenville, the average low-temperature during the month of January is a subzero cold 24.6°F (-4.1°C).Humidity
The months with the highest humidity are January and March, with an average relative humidity of 81%.Rainfall
In Greenville, in January, it is raining for 9.7 days, with typically 3.7" (94mm) of accumulated precipitation. Throughout the year, there are 91.7 rainfall days, and 23.19" (589mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Greenville. In Greenville, in January, during 6.9 snowfall days, 10.55" (268mm) of snow is typically accumulated. In Greenville, California, during the entire year, snow falls for 37.7 days and aggregates up to 56.02" (1423mm) of snow.Daylight
The average length of the day in January is 9h and 43min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:48 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:20 pm PST.
Sunshine
With an average of 5.4h of sunshine, January has the least sunshine of the year in Greenville.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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Greenville in January?
What are the most humid months in Greenville?
What is the average humidity in January in Greenville?
How much does it rain in Greenville in January?
How many days does it snow in January in Greenville?
How many hours of daylight does Greenville have in January?
When is the sunrise / sunset in January in Greenville?
What is the month with the least sunshine in Greenville?
How long on average sun shines in January in Greenville?
When is the lowest UV index in Greenville?
How high is the UV index in January in Greenville?
Average temperature in January
Greenville, CA
- Average high temperature in January: 40.8°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in January: 24.6°F
The month with the highest average low temperature is July (49.1°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).
Average pressure in January
Greenville, CA
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Greenville, CA
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is March (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Greenville, CA
- Average humidity in January: 81%
The months with the highest relative humidity are January and March (81%).
The month with the lowest relative humidity is July (41%).
Average rainfall in January
Greenville, CA
- Average rainfall in January: 3.7"
The wettest months (with the highest rainfall) are February and December (4.06").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in January
Greenville, CA
- Average rainfall days in January: 9.7 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in January
Greenville, CA
- Average snowfall in January: 10.55"
The month with the highest snowfall is February (13.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Greenville, CA
- Average snowfall days in January: 6.9 days
The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Greenville, CA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in January
Greenville, CA
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in January
Greenville, CA
- Average UV index in January: 2
The month with the highest UV index is 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
Greenville, CA
- Average cloud cover in January: 40
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in January
Greenville, CA
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Greenville, California, USA
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