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
With the onset of December, Barstow experiences a modest temperature adjustment, with the average high-temperature gently receding from a fresh 54.9°F (12.7°C) in November to a chilly 46.6°F (8.1°C). Throughout December nights, Barstow experiences a consistent temperature average of 36.5°F (2.5°C).Humidity
In Barstow, the average relative humidity in December is 76%.Rainfall
In Barstow, in December, during 10.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, in Barstow, there are 158.1 rainfall days, and 33.07" (840mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Barstow. In December, it is snowing for 1.7 days. Throughout December, 0.71" (18mm) of snow is accumulated. In Barstow, during the entire year, snow falls for 10.6 days and aggregates up to 5.51" (140mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:05 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:55 pm EST.
Sunshine
In Barstow, the average sunshine in December is 5.1h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Barstow in December?
What is the average humidity in December in Barstow?
How much does it rain in Barstow in December?
How much does it snow in Barstow in December?
What is the month with the shortest days in Barstow?
How many hours of daylight does Barstow have in December?
What time are sunrise and sunset in December in Barstow?
How long on average sun shines in December in Barstow?
What are the months with the lowest UV index in Barstow?
How high is the UV index in December in Barstow?
Average temperature in December
Barstow, MD
- Average high temperature in December: 46.6°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Barstow, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Barstow, MD
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in December
Barstow, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (72%).
Average rainfall in December
Barstow, MD
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in December
Barstow, MD
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is November (8 days).
Average snowfall in December
Barstow, MD
- Average snowfall in December: 0.71"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Barstow, MD
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is January (3.7 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, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Barstow, MD
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (11.3 days).
Average UV index in December
Barstow, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Barstow, MD
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Barstow, MD
- 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, Maryland, USA
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