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 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
The coldest time of the year is December, with temperatures averaging a high of 62.4°F (16.9°C) and a low of 45.1°F (7.3°C).Humidity
In December, the average relative humidity in Lilac is 58%.Rainfall
In Lilac, during December, the rain falls for 5.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 51.6 rainfall days, and 5.59" (142mm) of precipitation is accumulated.Snowfall
In Lilac, snow does not fall in January, March through December.Daylight
December has the shortest days of the year in Lilac, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 6:34 am and sunset at 4:40 pm. On the last day of December, sunrise is at 6:51 am and sunset at 4:51 pm PST.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year in Lilac.UV index
The month with the lowest UV index in Lilac, California, is December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 3 in December transforms into the following instructions:
Take precautions - Protection against sun damage is advised. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What is the coldest time of year in Lilac?
What is the temperature in December in Lilac?
What is the average humidity in December in Lilac?
How much does it rain in Lilac in December?
When it does not snow in Lilac?
What is the month with the shortest days in Lilac?
What is the average length of the day in December in Lilac?
When is the sunrise / sunset in December in Lilac?
What is the month with the least sunshine in Lilac?
How long on average sun shines in December in Lilac?
What is the month with the lowest UV index in Lilac?
What is the UV index reading in December in Lilac?
Average temperature in December
Lilac, CA
- Average high temperature in December: 62.4°F
The warmest month (with the highest average high temperature) is August (86.9°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in December: 45.1°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is February (44.6°F).
Average pressure in December
Lilac, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Lilac, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (5.3mph).
The calmest month (with the lowest average wind speed) is September (4.2mph).
Average humidity in December
Lilac, CA
- Average humidity in December: 58%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (52%).
Average rainfall in December
Lilac, CA
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Lilac, CA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.3 days).
Average snowfall days in December
Lilac, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 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
Lilac, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Lilac, CA
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is June (28.1 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in December
Lilac, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Lilac, 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 6).
Average visibility in December
Lilac, 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).
Lilac, California, USA
Weather forecast for your location
2. Allow the app to use your location
