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 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 Rubidoux, the lowest average temperatures are observed in December, with a high of 63.3°F (17.4°C) and a low of 45.9°F (7.7°C).Humidity
In Rubidoux, the average relative humidity in December is 51%.Rainfall
The months with the most rainfall in Rubidoux are February and December, with an average 1.61" (41mm) of precipitation.Snowfall
In Rubidoux, California, snow does not fall in January, March through December.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 6:37 am and sunset at 4:40 pm. On the last day of December, sunrise is at 6:54 am and sunset at 4:51 pm PST.
Sunshine
February and December, with an average of 6.8h of sunshine, are months with the least sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index in Rubidoux, California. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What are the coldest months in Rubidoux?
What is the usual temperature for Rubidoux in December?
What is the average humidity in December in Rubidoux?
What is the rainiest month in Rubidoux?
How many days does it rain in December in Rubidoux?
When it does not snow in Rubidoux?
What is the month with the shortest days in Rubidoux?
How many hours of daylight does Rubidoux have in December?
When is the sunrise / sunset in December in Rubidoux?
What is the month with the least sunshine in Rubidoux?
How long on average sun shines in December in Rubidoux?
What is the month with the lowest UV index in Rubidoux?
What is the UV index intensity in December in Rubidoux?
Average temperature in December
Rubidoux, CA
- Average high temperature in December: 63.3°F
The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is December (63.3°F).
- Average low temperature in December: 45.9°F
The month with the highest average low temperature is August (66.4°F).
The coldest month (with the lowest average low temperature) is December (45.9°F).
Average pressure in December
Rubidoux, 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 (29.86"Hg).
Average wind speed in December
Rubidoux, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is May (5.6mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in December
Rubidoux, CA
- Average humidity in December: 51%
The month with the highest relative humidity is May (56%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Rubidoux, CA
- Average rainfall in December: 1.61"
The wettest months (with the highest rainfall) are February and December (1.61").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Rubidoux, CA
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.1 days).
Average snowfall days in December
Rubidoux, 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
Rubidoux, 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 July and August (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 48min).
Average sunshine days in December
Rubidoux, CA
- Average sunshine days in December: 23.8 days
The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in December
Rubidoux, CA
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Rubidoux, CA
- Average cloud cover in December: 22
The months with the most cloud cover are February and March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Rubidoux, 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).
Rubidoux, California, USA
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