Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Chester, California, experiences its lowest average temperatures in December, reaching a peak of 38.3°F (3.5°C) and a minimum of 24.1°F (-4.4°C).Humidity
The average relative humidity in December in Chester, California, is 79%.Rainfall
In Chester, in December, during 8.9 rainfall days, 5.2" (132mm) of precipitation is typically accumulated. Throughout the year, there are 98.1 rainfall days, and 32.99" (838mm) of precipitation is accumulated.Snowfall
Months with snowfall in Chester are January through June, September through December. In Chester, California, in December, during 12.2 snowfall days, 25.67" (652mm) of snow is typically accumulated. Throughout the year, there are 66 snowfall days, and 127.72" (3244mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December in Chester, California, sunrise is at 7:09 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:49 pm PST.
Sunshine
In Chester, the average sunshine in December is 5.2h.UV index
In December, the average daily maximum UV index in Chester is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What part of the year is the coldest in Chester?
How cold is December in Chester?
What is the average humidity in December in Chester?
How many days does it rain in December in Chester?
How many days does it snow in December in Chester?
What is the month with the shortest days in Chester?
What is the average length of the day in December in Chester?
When are sunrise and sunset in December in Chester?
How many hours of sunshine does Chester have in December?
How high is the UV index in December in Chester?
Average temperature in December
Chester, CA
- Average high temperature in December: 38.3°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 December: 24.1°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 December
Chester, CA
- Average pressure in December: 30.16"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 December
Chester, CA
- Average wind speed in December: 6mph
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 December
Chester, CA
- Average humidity in December: 79%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is July (42%).
Average rainfall in December
Chester, CA
- Average rainfall in December: 5.2"
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 December
Chester, CA
- Average rainfall days in December: 8.9 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 December
Chester, CA
- Average snowfall in December: 25.67"
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 December
Chester, CA
- Average snowfall days in December: 12.2 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 December /
Average sunshine in December
Chester, CA
- Average daylight in December: 9h and 2min
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 December: 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 December
Chester, CA
- Average sunshine days in December: 14.6 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 December
Chester, CA
- Average UV index in December: 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 December
Chester, CA
- Average cloud cover in December: 44
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 December
Chester, CA
- Average visibility in December: 5mi
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
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