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
December, recording an average high temperature of 48.6°F (9.2°C) and a low temperature of 32.9°F (0.5°C), is Pioneer's coldest month.Humidity
The average relative humidity in December is 67%.Rainfall
In December, the rain falls for 9.4 days. Throughout December, 4.96" (126mm) of precipitation is accumulated. Throughout the year, there are 78.6 rainfall days, and 31.18" (792mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Pioneer, in December, snow falls for 5.1 days, with typically accumulated 7.99" (203mm) of snow. Throughout the year, there are 27.8 snowfall days, and 71.02" (1804mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:51 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 5.9h of sunshine.UV index
February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What are the temperatures in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Pioneer?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Pioneer have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Pioneer, CA
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (48.6°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in December
Pioneer, CA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Pioneer, CA
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is February (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Pioneer, CA
- Average humidity in December: 67%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in December
Pioneer, CA
- Average rainfall in December: 4.96"
The wettest month (with the highest rainfall) is March (6.14").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in December
Pioneer, CA
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in December
Pioneer, CA
- Average snowfall in December: 7.99"
The month with the highest snowfall is March (18.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Pioneer, CA
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is March (6.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Pioneer, CA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Pioneer, CA
- Average sunshine days in December: 19 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (14.3 days).
Average UV index in December
Pioneer, CA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Pioneer, CA
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in December
Pioneer, 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).
Pioneer, California, USA
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