Monthly weather forecast and climate
Sylmar, CA

Weather in January

January, like December, in Sylmar, California, is another enjoyable winter month, with average temperature ranging between max 63.1°F (17.3°C) and min 47.8°F (8.8°C). In Sylmar, the average high-temperature is relatively the same as in December - a still enjoyable 63.1°F (17.3°C). Weather in January »

Weather in February

The last month of the winter, February, is another comfortable month in Sylmar, California, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 63°F (17.2°C). In Sylmar, the average high-temperature in February is essentially the same as in January - a still enjoyable 63°F (17.2°C). Weather in February »

Weather in March

March, the first month of the spring, in Sylmar, is still a comfortable month, with average temperature fluctuating between 66.6°F (19.2°C) and 48.2°F (9°C). In Sylmar, the average high-temperature is practically the same as in February - a still enjoyable 66.6°F (19.2°C). Weather in March »

Weather in April

April is a pleasant spring month in Sylmar, California, with average temperature varying between 70.3°F (21.3°C) and 50.5°F (10.3°C). In April, the average high-temperature is relatively the same as in March - a pleasant 70.3°F (21.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Sylmar, is a moderately hot month, with average temperature varying between 54.5°F (12.5°C) and 73.8°F (23.2°C). In Sylmar, the average high-temperature is essentially the same as in April - a warm 73.8°F (23.2°C). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Sylmar, California, with average temperature ranging between max 79.3°F (26.3°C) and min 58.6°F (14.8°C). In Sylmar, the average high-temperature marginally rises, from a moderately hot 73.8°F (23.2°C) in May, to a still warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Sylmar, California, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 84.2°F (29°C). In July, the average high-temperature is relatively the same as in June - a still moderately hot 84.2°F (29°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Sylmar, California, with average temperature varying between 64.9°F (18.3°C) and 85.8°F (29.9°C). The warmest month is August, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 64.9°F (18.3°C). The average heat index is estimated at a tropical 88°F (31.1°C). Weather in August »

Weather in September

September, the first month of the autumn, in Sylmar, is still a warm month, with average temperature ranging between max 83.1°F (28.4°C) and min 62.6°F (17°C). In Sylmar, California, the average high-temperature in September is relatively the same as in August - a still warm 83.1°F (28.4°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Sylmar, California, with average temperature varying between 76.5°F (24.7°C) and 58.5°F (14.7°C). In Sylmar, California, the average high-temperature slightly decreases, from 83.1°F (28.4°C) in September, to a still warm 76.5°F (24.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Sylmar, California, with average temperature ranging between max 69.4°F (20.8°C) and min 52.3°F (11.3°C). In Sylmar, the average high-temperature slightly decreases, from a warm 76.5°F (24.7°C) in October, to a pleasant 69.4°F (20.8°C). Weather in November »

Weather in December

December, the first month of the winter, in Sylmar, is still a comfortable month, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 46.2°F (7.9°C). With an average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 46.2°F (7.9°C), December is the coldest month. Weather in December »
[Resources]

FAQ

How much does it rain in Sylmar?

Throughout the year, in Sylmar, California, there are 39.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.

What is the month with the least sunshine in Sylmar?

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

What is the rainiest month in Sylmar?

February is the month with the most rainfall. Rain falls for 4.8 days and accumulates 1.54" (39mm) of precipitation.

What is the most humid month in Sylmar?

June is the most humid month, with an average relative humidity of 58%.

What is the driest month in Sylmar?

June is the only month when rain does not fall in Sylmar.

When are the longest days in Sylmar?

June has the longest days of the year, with an average of 14.4h of daylight.

What is the month with the most sunshine in Sylmar?

Months with the most sunshine are June and July, with an average of 12.1h of sunshine.

When is the highest UV index in Sylmar?

June through September, with an average maximum UV index of 6, are months with the highest UV index.

When does it rain in Sylmar?

January through May, July through December are months with rainfall in Sylmar, California.

What is the warmest month in Sylmar?

With an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 64.9°F (18.3°C), August is the warmest month.

What is the least humid month in Sylmar?

With an average relative humidity of 47%, November is the least humid month in Sylmar, California.

What is the coldest month in Sylmar?

December is the coldest month in Sylmar, with an average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 46.2°F (7.9°C).

What is the month with the shortest days in Sylmar?

With an average of 9.9h of daylight, December has the shortest days of the year in Sylmar.

When is the lowest UV index in Sylmar?

With an average maximum UV index of 3, December is the month with the lowest UV index.

Average temperature
Sylmar, CA

Average temperature - Sylmar, CA

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).

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).

[Resources]

Average pressure
Sylmar, CA

Average pressure - Sylmar, CA

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

[Resources]

Average wind speed
Sylmar, CA

Average wind speed - Sylmar, CA

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).

[Resources]

Average rainfall
Sylmar, CA

Average rainfall - Sylmar, CA

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

[Resources]

Average rainfall days
Sylmar, CA

Average rainfall days - Sylmar, CA

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).

[Resources]

Average daylight / Average sunshine
Sylmar, CA

Average daylight / Average sunshine - Sylmar, CA

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

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).

[Resources]

Average sunshine days
Sylmar, CA

Average sunshine days - Sylmar, CA

The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is February (22.9 days).

[Resources]

Average visibility
Sylmar, CA

Average visibility - Sylmar, CA

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).

[Resources]