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 warmest month is July, with an average high-temperature of 102.2°F (39°C) and an average low-temperature of 66.9°F (19.4°C).Humidity
The least humid month is July, with an average relative humidity of 30%.Rainfall
In July, in Riverdale, the rain falls for 2.3 days. Throughout July, 0.12" (3mm) of precipitation is accumulated. Throughout the year, in Riverdale, there are 58.2 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Daylight
In Riverdale, the average length of the day in July is 14h and 22min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:21 pm. On the last day of July, sunrise is at 6:05 am and sunset at 8:06 pm PDT.
Sunshine
The months with the most sunshine are June and July, with an average of 12.1h of sunshine.UV index
The months with the highest UV index in Riverdale are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 7 in July interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.
FAQ
What is the warmest month in Riverdale?
What is the temperature in July in Riverdale?
What is the least humid month in Riverdale?
What is the average humidity in July in Riverdale?
How much does it rain in Riverdale in July?
What is the average length of the day in July in Riverdale?
When are sunrise and sunset in July in Riverdale?
What are the months with the most sunshine in Riverdale?
How many hours of sunshine does Riverdale have in July?
What is the month with the highest UV index in Riverdale?
What is the UV index reading in July in Riverdale?
Average temperature in July
Riverdale, CA
- Average high temperature in July: 102.2°F
The warmest month (with the highest average high temperature) is July (102.2°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in July: 66.9°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is December (43°F).
Average pressure in July
Riverdale, CA
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in July
Riverdale, CA
- Average wind speed in July: 6.3mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and November (4.8mph).
Average humidity in July
Riverdale, CA
- Average humidity in July: 30%
The months with the highest relative humidity are January and December (66%).
The month with the lowest relative humidity is July (30%).
Average rainfall in July
Riverdale, CA
- Average rainfall in July: 0.12"
The wettest months (with the highest rainfall) are January, February and March (1.54").
The driest month (with the least rainfall) is August (0.08").
Average rainfall days in July
Riverdale, CA
- Average rainfall days in July: 2.3 days
The month with the highest number of rainy days is March (9.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight in July /
Average sunshine in July
Riverdale, CA
- Average daylight in July: 14h and 22min
The month with the longest days is June (Average daylight: 14h and 37min).
The month with the shortest days is December (Average daylight: 9h and 43min).
- Average sunshine in July: 12h and 6min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in July
Riverdale, CA
- Average sunshine days in July: 27.5 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (19.4 days).
Average UV index in July
Riverdale, CA
- Average UV index in July: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in July
Riverdale, CA
- Average cloud cover in July: 5
The months with the most cloud cover are March and December (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in July
Riverdale, 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).
Weather forecast for your location
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