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 welcomes an average high-temperature of a still icy 40.5°F (4.7°C), not much different from the preceding month. In the month of January, Chester witnesses a consistent average low-temperature of 25.2°F (-3.8°C).Humidity
In January, the average relative humidity is 81%.Rainfall
In Chester, in January, it is raining for 7.9 days, with typically 4.88" (124mm) of accumulated precipitation. In Chester, during the entire year, the rain falls for 98.1 days and collects up to 32.99" (838mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Chester, during January, snow falls for 10.9 days and regularly aggregates up to 24.13" (613mm) of snow. Throughout the year, there are 66 snowfall days, and 127.72" (3244mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 41min.On the first day of the month, sunrise is at 7:27 am and sunset at 4:49 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:21 pm PST.
Sunshine
The month with the least sunshine in Chester is January, with an average of 5.1h of sunshine.UV index
In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in Chester in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Chester have in January?
How high is the UV index in January?
Average temperature in January
Chester, CA
- Average high temperature in January: 40.5°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in January: 25.2°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in January
Chester, CA
- Average pressure in January: 30.18"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Chester, CA
- Average wind speed in January: 6.1mph
The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Chester, CA
- Average humidity in January: 81%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is July (42%).
Average rainfall in January
Chester, CA
- Average rainfall in January: 4.88"
The wettest month (with the highest rainfall) is March (5.59").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in January
Chester, CA
- Average rainfall days in January: 7.9 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is August (4 days).
Average snowfall in January
Chester, CA
- Average snowfall in January: 24.13"
The month with the highest snowfall is March (27.05").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Chester, CA
- Average snowfall days in January: 10.9 days
The month with the highest number of snowfall days is March (14 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Chester, 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 1min
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 6min).
Average sunshine days in January
Chester, CA
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in January
Chester, 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 February and November (UV index 1).
Average cloud cover in January
Chester, CA
- Average cloud cover in January: 45
The month with the most cloud cover is March (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in January
Chester, CA
- Average visibility in January: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Chester, California, USA
Weather forecast for your location
2. Allow the app to use your location