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 month that records the lowest temperatures, with averages ranging from a high of 59.4°F (15.2°C) to a low of 43.3°F (6.3°C).Humidity
With an average relative humidity of 50%, December is the most humid month.Rainfall
In Truckhaven, in December, it is raining for 5.7 days, with typically 0.87" (22mm) of accumulated precipitation. In Truckhaven, during the entire year, the rain falls for 60.2 days and collects up to 7.68" (195mm) of precipitation.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:30 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 4:47 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.8h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In December, an average UV index of 3 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
What is the usual temperature for Truckhaven in December?
What is the most humid month?
What is the average humidity in December in Truckhaven?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Truckhaven have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Truckhaven, CA
- Average high temperature in December: 59.4°F
The warmest months (with the highest average high temperature) are July and August (93.7°F).
The month with the lowest average high temperature is December (59.4°F).
- Average low temperature in December: 43.3°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is December (43.3°F).
Average pressure in December
Truckhaven, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Truckhaven, CA
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is May (8.6mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity in December
Truckhaven, CA
- Average humidity in December: 50%
The month with the highest relative humidity is December (50%).
The months with the lowest relative humidity are June and August (34%).
Average rainfall in December
Truckhaven, CA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is July (1.38").
The driest months (with the least rainfall) are May and June (0.12").
Average rainfall days in December
Truckhaven, CA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (1.8 days).
Average daylight in December /
Average sunshine in December
Truckhaven, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Truckhaven, CA
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (20.4 days).
Average UV index in December
Truckhaven, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Truckhaven, CA
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Truckhaven, 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).
Truckhaven, California, USA
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