July weather forecastRiverside, WA
July
Weather in July
July in Riverside, Washington, is a moderately hot summer month, with an average temperature fluctuating between 82.6°F (28.1°C) and 54.3°F (12.4°C).Temperature
July is the month that records the highest temperatures, with averages ranging from a high of 82.6°F (28.1°C) to a low of 54.3°F (12.4°C).Heat index
July's average heat index is computed to be 82.4°F (28°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
July and August, with an average relative humidity of 42%, are the least humid months in Riverside.Rainfall
The months with the least rainfall are July and August Rain falls for 3.8 days and accumulates 0.2" (5mm) of rain.Snowfall
May through October are months without snowfall in Riverside.Daylight
In July, the average length of the day is 15h and 38min.On the first day of the month, sunrise is at 5:00 am and sunset at 9:03 pm. On the last day of July, sunrise is at 5:32 am and sunset at 8:36 pm PDT.
Sunshine
The months with the most sunshine in Riverside, Washington, are July and August, with an average of 12h of sunshine.UV index
July is the month with the highest UV index in Riverside, Washington, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In July, the maximum UV index of 6 transforms into these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. 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. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Riverside, WA
- Average high temperature in July: 82.6°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in July: 54.3°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in July
Riverside, WA
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in July
Riverside, WA
- Average wind speed in July: 5mph
The windiest month (with the highest average wind speed) is April (5.1mph).
The calmest month (with the lowest average wind speed) is January (4mph).
Average humidity in July
Riverside, WA
- Average humidity in July: 42%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (42%).
Average rainfall in July
Riverside, WA
- Average rainfall in July: 0.2"
The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in July
Riverside, WA
- Average rainfall days in July: 3.8 days
The month with the highest number of rainy days is March (11.5 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in July
Riverside, WA
- Average snowfall in July: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Riverside, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Riverside, WA
- Average daylight in July: 15h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in July: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in July
Riverside, WA
- Average sunshine days in July: 25.8 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is November (15.4 days).
Average UV index in July
Riverside, WA
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in July
Riverside, WA
- Average cloud cover in July: 12
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in July
Riverside, WA
- Average visibility in July: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
