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, with the temperature often reaching an average high of 64.6°F (18.1°C) and an average low of 50.7°F (10.4°C).Humidity
The average relative humidity in December in Walnut Park is 54%.Rainfall
In Walnut Park, in December, it is raining for 5.2 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, in Walnut Park, there are 43.2 rainfall days, and 6.46" (164mm) of precipitation is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Walnut Park.On the first day of December in Walnut Park, sunrise is at 6:40 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:54 pm PST.
Sunshine
The months with the least sunshine in Walnut Park are February and December, with an average of 6.7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Walnut Park. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during December leads to these instructions:
Undertake protective steps - Preventing sun damage is advised. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the coldest time of year in Walnut Park?
What are the temperatures in Walnut Park in December?
What is the average humidity in December in Walnut Park?
How much does it rain in Walnut Park in December?
What is the month with the shortest days in Walnut Park?
What is the average length of the day in December in Walnut Park?
What time are sunrise and sunset in December in Walnut Park?
What is the month with the least sunshine in Walnut Park?
How many hours of sunshine does Walnut Park have in December?
What is the month with the lowest UV index in Walnut Park?
How high is the UV index in December in Walnut Park?
Average temperature in December
Walnut Park, CA
- Average high temperature in December: 64.6°F
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (64.6°F).
- Average low temperature in December: 50.7°F
The month with the highest average low temperature is August (65.1°F).
The coldest month (with the lowest average low temperature) is February (50°F).
Average pressure in December
Walnut Park, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in December
Walnut Park, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is October (4.7mph).
Average humidity in December
Walnut Park, CA
- Average humidity in December: 54%
The month with the highest relative humidity is June (65%).
The month with the lowest relative humidity is November (50%).
Average rainfall in December
Walnut Park, CA
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is February (1.34").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Walnut Park, CA
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is March (5.9 days).
The month with the least rainy days is June (1.3 days).
Average daylight in December /
Average sunshine in December
Walnut 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 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).
Average sunshine days in December
Walnut Park, CA
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is February (21.8 days).
Average UV index in December
Walnut 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
Walnut Park, CA
- Average cloud cover in December: 22
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
Walnut 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).
Walnut Park, California, USA
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