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 is the coldest month, with an average high-temperature of 46.9°F (8.3°C) and an average low-temperature of 31.5°F (-0.3°C).Humidity
The most humid month is December, with an average relative humidity of 47%.Rainfall
December is the month with the most rainfall. Rain falls for 5.1 days and accumulates 0.67" (17mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. December is the month with the most snowfall. Snow falls for 1.2 days and accumulates 1.18" (30mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:45 am and sunset at 4:36 pm. On the last day of December, in Keeler, sunrise is at 7:03 am and sunset at 4:46 pm PST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 7.3h of sunshine.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
What is the wettest month in Keeler?
How many days does it rain in December?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Keeler have in December?
What time are sunrise and sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Keeler, CA
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (46.9°F).
- Average low temperature in December: 31.5°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is December (31.5°F).
Average pressure in December
Keeler, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Keeler, CA
- Average wind speed in December: 6.2mph
The windiest months (with the highest average wind speed) are April, May and June (7.6mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).
Average humidity in December
Keeler, CA
- Average humidity in December: 47%
The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is August (19%).
Average rainfall in December
Keeler, CA
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is December (0.67").
The driest months (with the least rainfall) are June and September (0.16").
Average rainfall days in December
Keeler, CA
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is September (2.3 days).
Average snowfall in December
Keeler, CA
- Average snowfall in December: 1.18"
The month with the highest snowfall is December (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Keeler, CA
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is December (1.2 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
Keeler, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 7h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 18min).
Average sunshine days in December
Keeler, CA
- Average sunshine days in December: 25.3 days
The month with the most sunshine days is October (27.7 days).
The month with the least sunshine days is July (20 days).
Average UV index in December
Keeler, CA
- Average UV index in December: 2
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 2).
Average cloud cover in December
Keeler, CA
- Average cloud cover in December: 15
The month with the most cloud cover is January (Cloud cover 16).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in December
Keeler, 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).
Keeler, California, USA
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