July weather forecastRichland, WA
July
Weather in July
July stands out as the hottest month in Richland with temperatures soaring to a peak at 90.1°F (32.3°C). It marks the height of the summer season. Extended daylight hours, bright sunshine, and the lowest humidity level, create a sultry atmosphere. Despite, the lack of shade, the inhabitants find respite in the breezy evenings. The weather transitions from scorching afternoons to moderately warm evenings.Temperature
Richland's warmest month, July, registers temperatures that range from a high of 90.1°F (32.3°C) to a low of 62.8°F (17.1°C).Humidity
With an average relative humidity of 35%, July is the least humid month in Richland, Washington.Rainfall
July and September are months with the least rain when the rain falls for 3.5 days and typically aggregates up to 0.2" (5mm) of rain.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in July is 15h and 22min.On the first day of the month, sunrise is at 5:09 am and sunset at 8:52 pm. On the last day of July, in Richland, sunrise is at 5:38 am and sunset at 8:28 pm PDT.
Sunshine
With an average of 12.1h of sunshine, July has the most sunshine of the year.UV index
The month with the highest UV index is July, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: In July, the average maximum UV index of 7 translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Richland, WA
- Average high temperature in July: 90.1°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.1°F).
- Average low temperature in July: 62.8°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (27.5°F).
Average pressure in July
Richland, WA
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in July
Richland, WA
- Average wind speed in July: 6.5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).
Average humidity in July
Richland, WA
- Average humidity in July: 35%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is July (35%).
Average rainfall in July
Richland, 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 September (0.2").
Average rainfall days in July
Richland, WA
- Average rainfall days in July: 3.5 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in July
Richland, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Richland, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Richland, WA
- Average daylight in July: 15h and 24min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in July: 12h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in July
Richland, WA
- Average sunshine days in July: 25.7 days
The month with the most sunshine days is July (25.7 days).
The months with the least sunshine days are February and March (15.3 days).
Average UV index in July
Richland, WA
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Richland, WA
- Average cloud cover in July: 9
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in July
Richland, WA
- 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).





