January weather forecast and climate
Porter Ranch, CA

Weather in January

January, like December, in Porter Ranch, California, is another comfortable winter month, with average temperature varying between 47.8°F (8.8°C) and 63.1°F (17.3°C).

Temperature

In January, the average high-temperature is almost the same as in December - a still comfortable 63.1°F (17.3°C). In January, in Porter Ranch, California, the average low-temperature is 47.8°F (8.8°C).

Humidity

In Porter Ranch, the average relative humidity is 52%.

Rainfall

In Porter Ranch, it is raining for 4.7 days, with typically 1.46" (37mm) of accumulated precipitation. In Porter Ranch, during the entire year, the rain falls for 39.8 days and collects up to 7.52" (191mm) of precipitation.

Daylight

The average length of the day in Porter Ranch is 10.2h.

Sunshine

Months with the least sunshine are January, February and December, with an average of 6.8h of sunshine.

UV index

The average daily maximum UV index in January is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 4 in January transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in January in Porter Ranch?

In Porter Ranch, the average relative humidity in January is 52%.

How much does it rain in Porter Ranch in January?

In Porter Ranch, in January, it is raining for 4.7 days, with typically 1.46" (37mm) of accumulated precipitation.

What is the average length of the day in January in Porter Ranch?

In January, the average length of the day in Porter Ranch, California, is 10.2h.

What is the month with the least sunshine in Porter Ranch?

January, February and December, with an average of 6.8h of sunshine, are months with the least sunshine in Porter Ranch.

How long on average sun shines in January in Porter Ranch?

In Porter Ranch, California, the average sunshine in January is 6.8h.

What is the UV index intensity in January in Porter Ranch?

The average daily maximum UV index in January in Porter Ranch is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in January
Porter Ranch, CA

Average temperature in January - Porter Ranch, CA
  • Average high temperature in January: 63.1°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 January: 47.8°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).

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Average pressure in January
Porter Ranch, CA

Average pressure in January - Porter Ranch, CA
  • Average pressure in January: 30.11"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.89").

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Average wind speed in January
Porter Ranch, CA

Average wind speed in January - Porter Ranch, CA
  • Average wind speed in January: 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).

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Average humidity in January
Porter Ranch, CA

Average humidity in January - Porter Ranch, CA
  • Average humidity in January: 52%

The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).

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Average rainfall in January
Porter Ranch, CA

Average rainfall in January - Porter Ranch, CA
  • Average rainfall in January: 1.46"

The wettest month (with the highest rainfall) is February (1.54").
The driest month (with the least rainfall) is June (0").

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Average rainfall days in January
Porter Ranch, CA

Average rainfall days in January - Porter Ranch, CA
  • Average rainfall days in January: 4.7 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).

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Average daylight in January /
Average sunshine in January
Porter Ranch, CA

Average daylight in January / Average sunshine in January - Porter Ranch, CA
  • Average daylight in January: 10.2h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in January: 6.8h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.8).

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Average sunshine days in January
Porter Ranch, CA

Average sunshine days in January - Porter Ranch, CA
  • Average sunshine days in January: 25.6 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).

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Average UV index in January
Porter Ranch, CA

Average UV index in January - Porter Ranch, CA
  • Average UV index in January: 4

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).

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Average cloud cover in January
Porter Ranch, CA

Average cloud cover in January - Porter Ranch, CA
  • Average cloud cover in January: 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).

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Average visibility in January
Porter Ranch, CA

Average visibility in January - Porter Ranch, CA
  • Average visibility in January: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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