December weather forecastPiedra, CA
December
Weather in December
The first month of the winter, December, is also a fresh month in Piedra, California, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 52.3°F (11.3°C).Temperature
Piedra reaches its lowest average temperatures in December, measuring 52.3°F (11.3°C) at the peak and 36.1°F (2.3°C) at the lowest.Humidity
The average relative humidity in December is 62%.Rainfall
In Piedra, in December, it is raining for 8.5 days, with typically 2.24" (57mm) of accumulated precipitation. In Piedra, during the entire year, the rain falls for 67.6 days and collects up to 17.52" (445mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Piedra, in December, during 0.5 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Piedra, during the entire year, snow falls for 3.8 days and aggregates up to 2.99" (76mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:52 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:10 am and sunset at 4:51 pm PST.
Sunshine
February and December, with an average of 6.7h of sunshine, are months with the least sunshine.UV index
In December, the average daily maximum UV index in Piedra is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 3 in December transforms into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Piedra, CA
- Average high temperature in December: 52.3°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (52.3°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (36.1°F).
Average pressure in December
Piedra, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Piedra, CA
- Average wind speed in December: 3.4mph
The windiest months (with the highest average wind speed) are March and June (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in December
Piedra, CA
- Average humidity in December: 62%
The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is August (30%).
Average rainfall in December
Piedra, CA
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is February (3.62").
The driest months (with the least rainfall) are June and August (0.12").
Average rainfall days in December
Piedra, CA
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is March (11.1 days).
The month with the least rainy days is August (1.6 days).
Average snowfall in December
Piedra, CA
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Piedra, CA
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Piedra, CA
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).
Average sunshine days in December
Piedra, CA
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is October (27.1 days).
The month with the least sunshine days is February (18.8 days).
Average UV index in December
Piedra, 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 November (UV index 2).
Average cloud cover in December
Piedra, CA
- Average cloud cover in December: 23
The month with the most cloud cover is March (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in December
Piedra, 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).
