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 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
In Porter Ranch, California, the month of December is known for its lowest average temperatures, reaching a high of 61.7°F (16.5°C) and a low of 46.2°F (7.9°C).Humidity
The average relative humidity in December in Porter Ranch is 52%.Rainfall
In December, in Porter Ranch, the rain falls for 5 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 39.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.Daylight
December has the shortest days of the year in Porter Ranch, with an average of 9h and 54min of daylight.On the first day of December in Porter Ranch, sunrise is at 6:42 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:54 pm PST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 6.8h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 3 in December translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What month is the coldest in Porter Ranch?
What is the temperature in December in Porter Ranch?
What is the average humidity in December in Porter Ranch?
How many days does it rain in December in Porter Ranch?
What is the month with the shortest days in Porter Ranch?
How many hours of daylight does Porter Ranch have in December?
What time are sunrise and sunset in December in Porter Ranch?
What are the months with the least sunshine in Porter Ranch?
How long on average sun shines in December in Porter Ranch?
What is the month with the lowest UV index in Porter Ranch?
What is the UV index reading in December in Porter Ranch?
Average temperature in December
Porter Ranch, CA
- Average high temperature in December: 61.7°F
The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in December: 46.2°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).
Average pressure in December
Porter Ranch, CA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Porter Ranch, CA
- Average wind speed in December: 6.2mph
The windiest months (with the highest average wind speed) are January and December (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in December
Porter Ranch, CA
- Average humidity in December: 52%
The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).
Average rainfall in December
Porter Ranch, CA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is February (1.54").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Porter Ranch, CA
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).
Average daylight in December /
Average sunshine in December
Porter Ranch, CA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in December
Porter Ranch, CA
- Average sunshine days in December: 25.2 days
The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is February (22.9 days).
Average UV index in December
Porter Ranch, 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
Porter Ranch, CA
- Average cloud cover in December: 21
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in December
Porter Ranch, 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).
Porter Ranch, California, USA
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