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
Monterey Park's December weather, with an average high temperature of 63.7°F (17.6°C) and an average low temperature of 48.9°F (9.4°C), tends to be the coldest of the year.Humidity
In Monterey Park, the average relative humidity in December is 52%.Rainfall
In Monterey Park, during December, the rain falls for 3.4 days and regularly aggregates up to 0.35" (9mm) of precipitation. In Monterey Park, during the entire year, the rain falls for 29.9 days and collects up to 2.17" (55mm) of precipitation.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:40 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:53 pm PST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 6.9h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in December converts into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Monterey Park?
What are December temperatures in Monterey Park?
What is the average humidity in December in Monterey Park?
How many days does it rain in December in Monterey Park?
What is the month with the shortest days in Monterey Park?
How many hours of daylight does Monterey Park have in December?
When is the sunrise / sunset in December in Monterey Park?
What are the months with the least sunshine in Monterey Park?
How many hours of sunshine does Monterey Park have in December?
What are the months with the lowest UV index in Monterey Park?
What is the UV index intensity in December in Monterey Park?
Average temperature in December
Monterey Park, CA
- Average high temperature in December: 63.7°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (63.7°F).
- Average low temperature in December: 48.9°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (48.6°F).
Average pressure in December
Monterey Park, 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 (29.88"Hg).
Average wind speed in December
Monterey Park, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are September and October (4.5mph).
Average humidity in December
Monterey Park, CA
- Average humidity in December: 52%
The month with the highest relative humidity is June (60%).
The month with the lowest relative humidity is November (47%).
Average rainfall in December
Monterey Park, CA
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is February (0.47").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Monterey Park, CA
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is March (6.2 days).
The month with the least rainy days is June (0.6 days).
Average daylight in December /
Average sunshine in December
Monterey Park, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in December
Monterey Park, CA
- Average sunshine days in December: 26.7 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (23.4 days).
Average UV index in December
Monterey Park, CA
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in December
Monterey Park, CA
- Average cloud cover in December: 21
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Monterey Park, 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).
Monterey Park, California, USA
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