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
Pico Rivera's December weather, with an average high temperature of 64.9°F (18.3°C) and an average low temperature of 50.4°F (10.2°C), tends to be the coldest of the year.Humidity
The average relative humidity in December in Pico Rivera is 53%.Rainfall
December is the month with the most rainfall. Rain falls for 4.8 days and accumulates 1.3" (33mm) of precipitation.Daylight
The month with the shortest days in Pico Rivera is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:40 am and sunset at 4:43 pm. On the last day of December, in Pico Rivera, sunrise is at 6:57 am and sunset at 4:53 pm PST.
Sunshine
The months with the least sunshine in Pico Rivera are January, February and December, with an average of 6.8h of sunshine.UV index
February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Pico Rivera. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 4 during December translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Pico Rivera?
What is the average December temperature in Pico Rivera?
What is the average humidity in December in Pico Rivera?
What is the wettest month in Pico Rivera?
How much does it rain in Pico Rivera in December?
What is the month with the shortest days in Pico Rivera?
What is the average length of the day in December in Pico Rivera?
What time are sunrise and sunset in December in Pico Rivera?
What is the month with the least sunshine in Pico Rivera?
How long on average sun shines in December in Pico Rivera?
What are the months with the lowest UV index in Pico Rivera?
What is the UV index intensity in December in Pico Rivera?
Average temperature in December
Pico Rivera, CA
- Average high temperature in December: 64.9°F
The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is December (64.9°F).
- Average low temperature in December: 50.4°F
The month with the highest average low temperature is August (66°F).
The coldest month (with the lowest average low temperature) is February (50°F).
Average pressure in December
Pico Rivera, 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
Pico Rivera, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).
Average humidity in December
Pico Rivera, CA
- Average humidity in December: 53%
The month with the highest relative humidity is June (63%).
The month with the lowest relative humidity is November (48%).
Average rainfall in December
Pico Rivera, CA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Pico Rivera, CA
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is March (5.8 days).
The month with the least rainy days is June (1 days).
Average daylight in December /
Average sunshine in December
Pico Rivera, 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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in December
Pico Rivera, CA
- Average sunshine days in December: 24.7 days
The month with the most sunshine days is August (27 days).
The month with the least sunshine days is February (22.6 days).
Average UV index in December
Pico Rivera, 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 February, November and December (UV index 4).
Average cloud cover in December
Pico Rivera, 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
Pico Rivera, 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).
Pico Rivera, California, USA
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