Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
The onset of July manifests an average high-temperature of a still moderately hot 84.2°F (29°C), demonstrating a minor variation from the preceding month. July nights are marked by an average temperature drop to a comfortable 64°F (17.8°C).Heat index
The heat index value for July is computed to be a hot 86°F (30°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In Sylmar, the average relative humidity in July is 54%.Rainfall
January through May, July through December are months with rainfall. July is the first month it rains. Throughout July, in the average 1.9 rainfall days, it receives 0.08" (2mm) 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
In July, the average length of the day is 14h and 11min.On the first day of July, sunrise is at 5:45 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:55 pm PDT.
Sunshine
June and July, with an average of 12.1h of sunshine, are months with the most sunshine.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 6 during July translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during July?
What is the average humidity in July?
When does it start raining?
How many hours of daylight does Sylmar have in July?
When are sunrise and sunset in July?
What is the month with the most sunshine?
How long on average sun shines in July?
What is the month with the highest UV index in Sylmar?
What is the UV index intensity in July?
Average temperature in July
Sylmar, CA
- Average high temperature in July: 84.2°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 July: 64°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 July
Sylmar, CA
- Average pressure in July: 29.92"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 July
Sylmar, CA
- Average wind speed in July: 4.9mph
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 July
Sylmar, CA
- Average humidity in July: 54%
The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).
Average rainfall in July
Sylmar, CA
- Average rainfall in July: 0.08"
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 July
Sylmar, CA
- Average rainfall days in July: 1.9 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 July /
Average sunshine in July
Sylmar, CA
- Average daylight in July: 14h and 1min
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 July: 12h and 1min
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 July
Sylmar, CA
- Average sunshine days in July: 28 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 July
Sylmar, CA
- Average UV index in July: 6
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 July
Sylmar, CA
- Average cloud cover in July: 6
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 July
Sylmar, CA
- Average visibility in July: 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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