December weather forecastSalinas, CA
December
Weather in December
Wrapping up the year, Salinas weather in December is similar to January, encapsulated by moderate rain showers. Daily temperature comparison displays a range from 57.6°F (14.2°C) to 44.1°F (6.7°C), preserving a consistent weather pattern. Showers span across 8.5 days totaling 1.38" (35mm), introducing a soothing chill in the clammy California weather. The days become shorter, with daylight lasting approximately 9.7 hours. Salinas presents a delightful slice of winter in December, unlike the typically harsh climate in other regions.Temperature
December, with average temperatures reaching a high of 57.6°F (14.2°C) and a low of 44.1°F (6.7°C), is the coldest month.Humidity
In Salinas, the average relative humidity in December is 71%.Rainfall
The month with the most rainfall is December, when the rain falls for 8.5 days and typically aggregates up to 1.38" (35mm) of precipitation.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:18 am and sunset at 5:01 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6h of sunshine.UV index
The months with the lowest UV index are February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 3 in December translates into the following instructions:
Take precautions - Protection against sunburn is recommended. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Salinas, CA
- Average high temperature in December: 57.6°F
The warmest months (with the highest average high temperature) are August and September (76.1°F).
The month with the lowest average high temperature is December (57.6°F).
- Average low temperature in December: 44.1°F
The months with the highest average low temperature are August and September (54.7°F).
The coldest month (with the lowest average low temperature) is December (44.1°F).
Average pressure in December
Salinas, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in December
Salinas, CA
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is May (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity in December
Salinas, CA
- Average humidity in December: 71%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Salinas, CA
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is December (1.38").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in December
Salinas, CA
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.8 days).
Average daylight in December /
Average sunshine in December
Salinas, 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
The months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in December
Salinas, CA
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is August (28.6 days).
The month with the least sunshine days is March (19.2 days).
Average UV index in December
Salinas, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in December
Salinas, CA
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in December
Salinas, 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).
