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 brings the lowest temperatures, with an average high of 56.5°F (13.6°C) and an average low of 42.1°F (5.6°C).Humidity
In December, the average relative humidity is 66%.Rainfall
In Parkwood, during December, the rain falls for 8.3 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 61.3 rainfall days, and 12.99" (330mm) of precipitation is accumulated.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:55 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:13 am and sunset at 4:53 pm PST.
Sunshine
With an average of 6.1h of sunshine, December has the least sunshine of the year.UV index
January, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 3 during December translates into these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. It's recommended to limit sun exposure when its radiation is at its peak during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Parkwood?
What are December temperatures?
What is the average humidity in December?
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?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Parkwood, CA
- Average high temperature in December: 56.5°F
The warmest month (with the highest average high temperature) is July (101.1°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in December: 42.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).
Average pressure in December
Parkwood, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Parkwood, CA
- Average wind speed in December: 4.9mph
The windiest month (with the highest average wind speed) is June (8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in December
Parkwood, CA
- Average humidity in December: 66%
The month with the highest relative humidity is January (68%).
The month with the lowest relative humidity is July (29%).
Average rainfall in December
Parkwood, CA
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in December
Parkwood, CA
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is March (11.2 days).
The month with the least rainy days is August (1 days).
Average daylight in December /
Average sunshine in December
Parkwood, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in December
Parkwood, CA
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (18.9 days).
Average UV index in December
Parkwood, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in December
Parkwood, CA
- Average cloud cover in December: 32
The month with the most cloud cover is December (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in December
Parkwood, 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).
Parkwood, California, USA
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