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 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
December is the coldest month, with the temperature often reaching an average high of 56.3°F (13.5°C) and an average low of 41.4°F (5.2°C).Humidity
In December, the average relative humidity in Jenner is 76%.Rainfall
In Jenner, California, in December, during 8.6 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, in Jenner, California, there are 60.1 rainfall days, and 12.87" (327mm) of precipitation is accumulated.Daylight
December has the shortest days of the year in Jenner, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:02 pm PST.
Sunshine
With an average of 5.4h of sunshine, December has the least sunshine of the year in Jenner.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 3 in December suggests the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What is the coldest month in Jenner?
What is the average December temperature in Jenner?
What is the average humidity in December in Jenner?
How much does it rain in Jenner in December?
What is the month with the shortest days in Jenner?
How many hours of daylight does Jenner have in December?
What time are sunrise and sunset in December in Jenner?
What is the month with the least sunshine in Jenner?
How many hours of sunshine does Jenner have in December?
What are the months with the lowest UV index in Jenner?
How high is the UV index in December in Jenner?
Average temperature in December
Jenner, CA
- Average high temperature in December: 56.3°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in December: 41.4°F
The months with the highest average low temperature are August and September (53.4°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in December
Jenner, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in December
Jenner, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (5mph).
Average humidity in December
Jenner, CA
- Average humidity in December: 76%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).
Average rainfall in December
Jenner, CA
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is February (3.27").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Jenner, CA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight in December /
Average sunshine in December
Jenner, CA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Jenner, CA
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is February (19.9 days).
Average UV index in December
Jenner, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Jenner, CA
- Average cloud cover in December: 39
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in December
Jenner, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Jenner, California, USA
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