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
In Barstow, the coldest period comes during January and December, when the average high-temperature touches 59.9°F (15.5°C).Humidity
December is the most humid month, with an average relative humidity of 47%.Rainfall
In Barstow, in December, it is raining for 3.2 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, there are 62.7 rainfall days, and 7.4" (188mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. The month with the most snowfall is December, when snow falls for 1.4 days and typically aggregates up to 0.75" (19mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 6min of daylight.On the first day of December, sunrise is at 7:35 am and sunset at 5:50 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 6:01 pm CST.
Sunshine
With an average of 7h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 3 in December translates into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
What are December temperatures?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days in Barstow?
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 in Barstow?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Barstow, TX
- Average high temperature in December: 59.9°F
The warmest month (with the highest average high temperature) is June (98.4°F).
The months with the lowest average high temperature are January and December (59.9°F).
- Average low temperature in December: 41.4°F
The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in December
Barstow, TX
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Barstow, TX
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is June (11.4mph).
The calmest month (with the lowest average wind speed) is November (8mph).
Average humidity in December
Barstow, TX
- Average humidity in December: 47%
The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is April (26%).
Average rainfall in December
Barstow, TX
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is September (1.22").
The driest month (with the least rainfall) is February (0.16").
Average rainfall days in December
Barstow, TX
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is September (9.6 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Barstow, TX
- Average snowfall in December: 0.75"
The month with the highest snowfall is December (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Barstow, TX
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is December (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Barstow, TX
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Barstow, TX
- Average sunshine days in December: 26.1 days
The month with the most sunshine days is January (27.2 days).
The month with the least sunshine days is September (18 days).
Average UV index in December
Barstow, TX
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Barstow, TX
- Average cloud cover in December: 20
The months with the most cloud cover are September and December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 11).
Average visibility in December
Barstow, TX
- 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).
Barstow, Texas, USA
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