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
Riverdale records the warmest temperatures in July, averaging a high of 102.2°F (39°C) and a low of 66.9°F (19.4°C).Humidity
The least humid month is July, with an average relative humidity of 30%.Rainfall
In Riverdale, in July, it is raining for 2.3 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, 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 July, sunrise is at 5:45 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:05 pm PDT.
Sunshine
The months with the most sunshine are June and July, with an average of 12.1h of sunshine.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 7 in July interprets into the following advice:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Riverdale?
How hot is it in July?
What is the least humid month in Riverdale?
What is the average humidity in July?
How many days does it rain in July?
How many hours of daylight does Riverdale have in July?
When are sunrise and sunset in July?
What are the months with the most sunshine in Riverdale?
How many hours of sunshine does Riverdale have in July?
What are the months with the highest UV index?
What is the UV index intensity in July?
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 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in July: 12h and 1min
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).
Riverdale, California, USA
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