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 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
The coldest period is December, when temperatures fluctuate between an average high of 63.7°F (17.6°C) and a low of 46.6°F (8.1°C).Humidity
In Riverview Farms, the average relative humidity in December is 58%.Rainfall
In Riverview Farms, in December, during 5.1 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 49.6 rainfall days, and 5.16" (131mm) of precipitation is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:32 am and sunset at 4:41 pm. On the last day of December, in Riverview Farms, sunrise is at 6:50 am and sunset at 4:52 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 6.7h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What month is the coldest in Riverview Farms?
What are the temperatures in Riverview Farms in December?
What is the average humidity in December in Riverview Farms?
How many days does it rain in December in Riverview Farms?
What is the month with the shortest days in Riverview Farms?
How many hours of daylight does Riverview Farms have in December?
When is the sunrise / sunset in December in Riverview Farms?
What is the month with the least sunshine in Riverview Farms?
How long on average sun shines in December in Riverview Farms?
What is the month with the lowest UV index in Riverview Farms?
How high is the UV index in December in Riverview Farms?
Average temperature in December
Riverview Farms, CA
- Average high temperature in December: 63.7°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is December (63.7°F).
- Average low temperature in December: 46.6°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in December
Riverview Farms, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Riverview Farms, CA
- Average wind speed in December: 4.8mph
The windiest months (with the highest average wind speed) are April and May (5.3mph).
The calmest months (with the lowest average wind speed) are August, September and October (4.2mph).
Average humidity in December
Riverview Farms, CA
- Average humidity in December: 58%
The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).
Average rainfall in December
Riverview Farms, CA
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is February (1.06").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Riverview Farms, CA
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (1.4 days).
Average daylight in December /
Average sunshine in December
Riverview Farms, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 4min
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 42min).
Average sunshine days in December
Riverview Farms, CA
- Average sunshine days in December: 25.2 days
The month with the most sunshine days is June (28 days).
The month with the least sunshine days is July (20.7 days).
Average UV index in December
Riverview Farms, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Riverview Farms, CA
- Average cloud cover in December: 23
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
Riverview Farms, 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).
Riverview Farms, California, USA
Weather forecast for your location
2. Allow the app to use your location
