December weather forecastEcho Lake, CA
December
Weather in December
The first month of the winter, December, is also a wintry month in Echo Lake, California, with an average temperature fluctuating between 35.4°F (1.9°C) and 20.1°F (-6.6°C).Temperature
Temperature records mark December as the coldest month, with highs averaging 35.4°F (1.9°C) and lows at 20.1°F (-6.6°C).Humidity
In December, the average relative humidity in Echo Lake, California, is 76%.Rainfall
In Echo Lake, in December, it is raining for 3.5 days, with typically 3.86" (98mm) of accumulated precipitation. Throughout the year, there are 45.4 rainfall days, and 26.06" (662mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In Echo Lake, during December, snow falls for 13.5 days and regularly aggregates up to 27.56" (700mm) of snow. Throughout the year, in Echo Lake, California, there are 83.9 snowfall days, and 153.46" (3898mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Echo Lake.On the first day of the month, sunrise is at 7:00 am and sunset at 4:38 pm. On the last day of December, in Echo Lake, sunrise is at 7:18 am and sunset at 4:48 pm PST.
Sunshine
With an average of 5.4h of sunshine, December has the least sunshine of the year.UV index
In Echo Lake, California, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Echo Lake, CA
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is December (35.4°F).
- Average low temperature in December: 20.1°F
The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is December (20.1°F).
Average pressure in December
Echo Lake, CA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Echo Lake, CA
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Echo Lake, CA
- Average humidity in December: 76%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Echo Lake, CA
- Average rainfall in December: 3.86"
The wettest month (with the highest rainfall) is March (4.69").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in December
Echo Lake, CA
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is May (6.9 days).
The month with the least rainy days is November (1.3 days).
Average snowfall in December
Echo Lake, CA
- Average snowfall in December: 27.56"
The month with the highest snowfall is March (33.46").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Echo Lake, CA
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is March (15.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Echo Lake, CA
- Average daylight in December: 9h and 30min
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 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Echo Lake, CA
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is August (25.6 days).
The month with the least sunshine days is March (14.7 days).
Average UV index in December
Echo Lake, CA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Echo Lake, CA
- Average cloud cover in December: 40
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in December
Echo Lake, CA
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).





