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
Potrero's December weather, marked by an average high temperature of 61.2°F (16.2°C) and an average low temperature of 45.1°F (7.3°C), is the coldest in the year.Humidity
The average relative humidity in December in Potrero is 55%.Rainfall
In Potrero, California, in December, it is raining for 5.1 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 55.1 rainfall days, and 6.93" (176mm) of precipitation is accumulated.Snowfall
In Potrero, California, snow does not fall in January, March through December.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December in Potrero, California, sunrise is at 6:31 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 4:51 pm PST.
Sunshine
The month with the least sunshine in Potrero, California, is December, with an average of 6.6h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In December, the UV index of 3 transforms into the following advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Potrero?
What are the temperatures in Potrero in December?
What is the average humidity in December in Potrero?
How much does it rain in Potrero in December?
When it does not snow in Potrero?
What is the month with the shortest days in Potrero?
What is the average length of the day in December in Potrero?
When are sunrise and sunset in December in Potrero?
What is the month with the least sunshine in Potrero?
How many hours of sunshine does Potrero have in December?
What is the month with the lowest UV index in Potrero?
What is the UV index reading in December in Potrero?
Average temperature in December
Potrero, CA
- Average high temperature in December: 61.2°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 (61.2°F).
- Average low temperature in December: 45.1°F
The month with the highest average low temperature is August (66.2°F).
The coldest months (with the lowest average low temperature) are February and December (45.1°F).
Average pressure in December
Potrero, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Potrero, CA
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are February and December (6.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.7mph).
Average humidity in December
Potrero, CA
- Average humidity in December: 55%
The month with the highest relative humidity is May (59%).
The month with the lowest relative humidity is November (48%).
Average rainfall in December
Potrero, CA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Potrero, CA
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in December
Potrero, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.12").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Potrero, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Potrero, 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 4min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Potrero, CA
- Average sunshine days in December: 25.4 days
The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in December
Potrero, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Potrero, CA
- Average cloud cover in December: 25
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in December
Potrero, 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).
Potrero, California, USA
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