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
Prunedale, California, reaches its lowest average temperatures in December, measuring 57.6°F (14.2°C) at the peak and 43.7°F (6.5°C) at the lowest.Humidity
In Prunedale, the average relative humidity in December is 71%.Rainfall
The month with the most rainfall is December, when the rain falls for 7.7 days and typically aggregates up to 1.14" (29mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:00 pm PST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 3 during December, leads to the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. 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 is the coldest time of year?
What is the usual temperature for Prunedale in December?
What is the average humidity in December?
What is the wettest month?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day 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 in Prunedale?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Prunedale, CA
- Average high temperature in December: 57.6°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (57.6°F).
- Average low temperature in December: 43.7°F
The month with the highest average low temperature is September (54.5°F).
The coldest month (with the lowest average low temperature) is December (43.7°F).
Average pressure in December
Prunedale, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in December
Prunedale, CA
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is May (6.5mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).
Average humidity in December
Prunedale, CA
- Average humidity in December: 71%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Prunedale, CA
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is December (1.14").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in December
Prunedale, CA
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is August (0.7 days).
Average daylight in December /
Average sunshine in December
Prunedale, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h
The months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in December
Prunedale, CA
- Average sunshine days in December: 22.2 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (20 days).
Average UV index in December
Prunedale, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in December
Prunedale, CA
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 33).
The months with the least cloud cover are July and September (Cloud cover 10).
Average visibility in December
Prunedale, 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).
Prunedale, California, USA
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