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 Moreno Valley, the month of December is known for its lowest average temperatures, reaching a high of 60.8°F (16°C) and a low of 43.5°F (6.4°C).Humidity
The average relative humidity in December is 53%.Rainfall
In December, the rain falls for 6.3 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. In Moreno Valley, California, during the entire year, the rain falls for 52.6 days and collects up to 7.52" (191mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:36 am and sunset at 4:39 pm. On the last day of December, sunrise is at 6:54 am and sunset at 4:50 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 6.8h of sunshine.UV index
November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 during December leads to these advisories:
Ensure safety - Recommendations to avert sunburn are presented. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
When it does not snow?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December in Moreno Valley?
Average temperature in December
Moreno Valley, CA
- Average high temperature in December: 60.8°F
The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is December (60.8°F).
- Average low temperature in December: 43.5°F
The month with the highest average low temperature is August (64.8°F).
The coldest months (with the lowest average low temperature) are February and December (43.5°F).
Average pressure in December
Moreno Valley, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Moreno Valley, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in December
Moreno Valley, CA
- Average humidity in December: 53%
The months with the highest relative humidity are February and May (56%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Moreno Valley, CA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is February (1.61").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Moreno Valley, CA
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in December
Moreno Valley, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.04").
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
Moreno Valley, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 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
Moreno Valley, 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: 6h and 5min
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 48min).
Average sunshine days in December
Moreno Valley, CA
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (20.3 days).
Average UV index in December
Moreno Valley, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
Moreno Valley, CA
- Average cloud cover in December: 23
The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Moreno Valley, 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).
Moreno Valley, California, USA
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