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, known for its average high temperature of 54.1°F (12.3°C) and an average low temperature of 38.5°F (3.6°C), is the coldest month.Humidity
The most humid month is December, with an average relative humidity of 52%.Rainfall
December is the month with the most rainfall. Rain falls for 6.2 days and accumulates 1.18" (30mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Hesperia, during December, snow falls for 0.5 days and regularly aggregates up to 1.38" (35mm) of snow. In Hesperia, during the entire year, snow falls for 3.1 days and aggregates up to 5.28" (134mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:38 am and sunset at 4:38 pm. On the last day of December, sunrise is at 6:55 am and sunset at 4:49 pm PST.
Sunshine
With an average of 7h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 3 translates into these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding the Sun during its peak radiation time around midday is a healthy practice. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
What is the rainiest month?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Hesperia?
How many hours of daylight does Hesperia have 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?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Hesperia, CA
- Average high temperature in December: 54.1°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is December (54.1°F).
- Average low temperature in December: 38.5°F
The month with the highest average low temperature is August (67.5°F).
The coldest month (with the lowest average low temperature) is December (38.5°F).
Average pressure in December
Hesperia, CA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Hesperia, CA
- Average wind speed in December: 6.3mph
The windiest months (with the highest average wind speed) are April and May (9.1mph).
The calmest month (with the lowest average wind speed) is January (6.2mph).
Average humidity in December
Hesperia, CA
- Average humidity in December: 52%
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is August (30%).
Average rainfall in December
Hesperia, CA
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is December (1.18").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Hesperia, CA
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (0.8 days).
Average snowfall in December
Hesperia, CA
- Average snowfall in December: 1.38"
The month with the highest snowfall is November (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hesperia, CA
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Hesperia, CA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 7h and 0min
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: 7h and 0min).
Average sunshine days in December
Hesperia, CA
- Average sunshine days in December: 23.3 days
The month with the most sunshine days is June (28.8 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in December
Hesperia, 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, February, November and December (UV index 3).
Average cloud cover in December
Hesperia, CA
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The months with the least cloud cover are June, August and September (Cloud cover 6).
Average visibility in December
Hesperia, 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).
Hesperia, California, USA
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