May weather forecast and climate
Porter Ranch, CA

Weather in May

May, the last month of the spring, in Porter Ranch, is a moderately hot month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 73.8°F (23.2°C).

Temperature

In Porter Ranch, the average high-temperature is almost the same as in April - a warm 73.8°F (23.2°C). The average low-temperature, in Porter Ranch, is 54.5°F (12.5°C).

Humidity

In May, the average relative humidity in Porter Ranch is 57%.

Rainfall

May is the last month it rains. During 1.8 rainfall days, Porter Ranch aggregates 0.2" (5mm) of precipitation. Throughout the year, there are 39.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.

Daylight

In May, the average length of the day is 14h.

Sunshine

In Porter Ranch, the average sunshine in May is 11.6h.

UV index

The average daily maximum UV index in Porter Ranch is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in May in Porter Ranch?

In May, the average relative humidity in Porter Ranch is 57%.

What is the last month it rains in Porter Ranch?

May is the last month it rains. During 1.8 rainfall days, in May, Porter Ranch aggregates 0.2" (5mm) of precipitation.

How many hours of daylight does Porter Ranch have in May?

In May, the average length of the day is 14h.

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

In May, the average sunshine in Porter Ranch, California, is 11.6h.

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

In Porter Ranch, California, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in May
Porter Ranch, CA

Average temperature in May - Porter Ranch, CA
  • Average high temperature in May: 73.8°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 May: 54.5°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 May
Porter Ranch, CA

Average pressure in May - Porter Ranch, CA
  • Average pressure in May: 29.93"

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 May
Porter Ranch, CA

Average wind speed in May - Porter Ranch, CA
  • Average wind speed in May: 5.6mph

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 May
Porter Ranch, CA

Average humidity in May - Porter Ranch, CA
  • Average humidity in May: 57%

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 May
Porter Ranch, CA

Average rainfall in May - Porter Ranch, CA
  • Average rainfall in May: 0.2"

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 May
Porter Ranch, CA

Average rainfall days in May - Porter Ranch, CA
  • Average rainfall days in May: 1.8 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 May /
Average sunshine in May
Porter Ranch, CA

Average daylight in May / Average sunshine in May - Porter Ranch, CA
  • Average daylight in May: 14h

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 May: 11.6h

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 May
Porter Ranch, CA

Average sunshine days in May - Porter Ranch, CA
  • Average sunshine days in May: 28.8 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 May
Porter Ranch, CA

Average UV index in May - Porter Ranch, CA
  • Average UV index in May: 5

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 May
Porter Ranch, CA

Average cloud cover in May - Porter Ranch, CA
  • Average cloud cover in May: 13

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 May
Porter Ranch, CA

Average visibility in May - Porter Ranch, CA
  • Average visibility in May: 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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