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
December is the coldest month of the year, registering average temperatures as high as 61.7°F (16.5°C) and as low as 43.5°F (6.4°C).Humidity
The average relative humidity in December in Glenoak Hills is 58%.Rainfall
December is the month with the most rainfall in Glenoak Hills. Rain falls for 6.5 days and accumulates 1.81" (46mm) of precipitation.Daylight
The month with the shortest days in Glenoak Hills is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:34 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 4:50 pm PST.
Sunshine
December has the least sunshine of the year in Glenoak Hills, with an average of 6.5h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index in Glenoak Hills. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 3 in December leads to these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the coldest time of year in Glenoak Hills?
What are December temperatures in Glenoak Hills?
What is the average humidity in December in Glenoak Hills?
What is the rainiest month in Glenoak Hills?
How many days does it rain in December in Glenoak Hills?
What is the month with the shortest days in Glenoak Hills?
What is the average length of the day in December in Glenoak Hills?
What time are sunrise and sunset in December in Glenoak Hills?
What is the month with the least sunshine in Glenoak Hills?
How many hours of sunshine does Glenoak Hills have in December?
When is the lowest UV index in Glenoak Hills?
What is the UV index intensity in December in Glenoak Hills?
Average temperature in December
Glenoak Hills, CA
- Average high temperature in December: 61.7°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in December: 43.5°F
The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is February (43.3°F).
Average pressure in December
Glenoak Hills, 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
Glenoak Hills, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in December
Glenoak Hills, 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
Glenoak Hills, CA
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Glenoak Hills, CA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is March (8.2 days).
The month with the least rainy days is June (1.4 days).
Average daylight in December /
Average sunshine in December
Glenoak Hills, 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 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Glenoak Hills, CA
- Average sunshine days in December: 23.4 days
The month with the most sunshine days is June (26.5 days).
The month with the least sunshine days is February (20.8 days).
Average UV index in December
Glenoak Hills, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Glenoak Hills, CA
- Average cloud cover in December: 26
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in December
Glenoak Hills, 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).
Glenoak Hills, California, USA
Weather forecast for your location
2. Allow the app to use your location
