May weather forecast
Sylmar, CA

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Weather in May

The last month of the spring, May, is a moderately hot month in Sylmar, California, with an average temperature varying between 54.5°F (12.5°C) and 73.8°F (23.2°C).

Temperature

The initiation of May sees an average high-temperature of a warm 73.8°F (23.2°C), showing minor variations from the previous month. May nights in Sylmar cool down to an average low-temperature of 54.5°F (12.5°C).

Humidity

In May, the average relative humidity is 57%.

Rainfall

May is the last month it rains in Sylmar, California. During 1.8 rainfall days, in May, Sylmar aggregates 0.2" (5mm) of precipitation. In Sylmar, 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 May is 13h and 58min.
On the first day of May, sunrise is at 6:03 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:00 pm PDT.

Sunshine

In May, the average sunshine is 11.6h.

UV index

In Sylmar, California, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 5 suggests this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Sylmar in May?

The high-temperature during May is 73.8°F (23.2°C) and the low-temperature is 54.5°F (12.5°C).

What is the average humidity in May?

In May, the average relative humidity is 57%.

What is the last month it rains in Sylmar?

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

How many hours of daylight does Sylmar have in May?

In Sylmar, the average day length in May is 13h and 58min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:03 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:00 pm PDT.

How long on average sun shines in May?

In Sylmar, the average sunshine duration in May is 11.6h.

How high is the UV index in May?

In Sylmar, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Sylmar, CA

Average temperature in May - Sylmar, 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).

Average pressure in May
Sylmar, CA

Average pressure in May - Sylmar, CA
  • Average pressure in May: 29.93"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 May
Sylmar, CA

Average wind speed in May - Sylmar, 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).

Average humidity in May
Sylmar, CA

Average humidity in May - Sylmar, 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%).

Average rainfall in May
Sylmar, CA

Average rainfall in May - Sylmar, 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").

Average rainfall days in May
Sylmar, CA

Average rainfall days in May - Sylmar, 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).

Average daylight in May /
Average sunshine in May
Sylmar, CA

Average daylight in May / Average sunshine in May - Sylmar, CA
  • Average daylight in May: 14h and 0min

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 May: 11h and 4min

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 May
Sylmar, CA

Average sunshine days in May - Sylmar, 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).

Average UV index in May
Sylmar, CA

Average UV index in May - Sylmar, CA
  • Average UV index in May: 5

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 May
Sylmar, CA

Average cloud cover in May - Sylmar, 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).

Average visibility in May
Sylmar, CA

Average visibility in May - Sylmar, CA
  • Average visibility in May: 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).

Sylmar, California, USA

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