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
December, noted for its average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 45.1°F (7.3°C), is considered the coldest month.Humidity
In Barrett Junction, the average relative humidity in December is 55%.Rainfall
In Barrett Junction, in December, it is raining for 5.1 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 55.1 rainfall days, and 6.93" (176mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in Barrett Junction.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:31 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 4:51 pm PST.
Sunshine
December has the least sunshine of the year in Barrett Junction, with an average of 6.6h of sunshine.UV index
December is the month with the lowest UV index in Barrett Junction, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 3 in December suggests the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. 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 month in Barrett Junction?
What is the temperature in December in Barrett Junction?
What is the average humidity in December in Barrett Junction?
How much does it rain in Barrett Junction in December?
When it does not snow in Barrett Junction?
What is the month with the shortest days in Barrett Junction?
How many hours of daylight does Barrett Junction have in December?
When is the sunrise / sunset in December in Barrett Junction?
What is the month with the least sunshine in Barrett Junction?
How long on average sun shines in December in Barrett Junction?
What is the month with the lowest UV index in Barrett Junction?
What is the UV index reading in December in Barrett Junction?
Average temperature in December
Barrett Junction, CA
- Average high temperature in December: 61.2°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in December: 45.1°F
The month with the highest average low temperature is August (66.2°F).
The coldest months (with the lowest average low temperature) are February and December (45.1°F).
Average pressure in December
Barrett Junction, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Barrett Junction, CA
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are February and December (6.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.7mph).
Average humidity in December
Barrett Junction, CA
- Average humidity in December: 55%
The month with the highest relative humidity is May (59%).
The month with the lowest relative humidity is November (48%).
Average rainfall in December
Barrett Junction, CA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Barrett Junction, CA
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in December
Barrett Junction, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.12").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Barrett Junction, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Barrett Junction, 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 4min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Barrett Junction, CA
- Average sunshine days in December: 25.4 days
The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in December
Barrett Junction, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Barrett Junction, CA
- Average cloud cover in December: 25
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in December
Barrett Junction, 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).
Barrett Junction, California, USA
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