July weather forecastRoche Harbor, WA
July
Weather in July
July, like June, in Roche Harbor, Washington, is another enjoyable summer month, with an average temperature varying between 64.9°F (18.3°C) and 57.2°F (14°C).Temperature
With average temperatures fluctuating between a high of 64.9°F (18.3°C) and a low of 57.2°F (14°C), July stands out as the warmest month.Humidity
In July, the average relative humidity is 77%.Rainfall
The month with the least rainfall is July, when the rain falls for 6.1 days and typically collects 0.43" (11mm) of precipitation.Snowfall
In Roche Harbor, snow does not fall in April through October.Daylight
In July, the average length of the day in Roche Harbor is 15h and 40min.On the first day of July, sunrise is at 5:14 am and sunset at 9:18 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:51 pm PDT.
Sunshine
With an average of 11.1h of sunshine, July has the most sunshine of the year.UV index
With an average maximum UV index of 5, July is the month with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 5 in July suggests the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Roche Harbor, WA
- Average high temperature in July: 64.9°F
The warmest month (with the highest average high temperature) is July (64.9°F).
The months with the lowest average high temperature are January, February and December (45.3°F).
- Average low temperature in July: 57.2°F
The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure in July
Roche Harbor, WA
- Average pressure in July: 30.05"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in July
Roche Harbor, WA
- Average wind speed in July: 5.7mph
The windiest month (with the highest average wind speed) is November (10.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in July
Roche Harbor, WA
- Average humidity in July: 77%
The months with the highest relative humidity are January, August and September (79%).
The month with the lowest relative humidity is April (76%).
Average rainfall in July
Roche Harbor, WA
- Average rainfall in July: 0.43"
The wettest month (with the highest rainfall) is November (3.43").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in July
Roche Harbor, WA
- Average rainfall days in July: 6.1 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in July
Roche Harbor, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Roche Harbor, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Roche Harbor, WA
- Average daylight in July: 15h and 42min
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: 11h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in July
Roche Harbor, WA
- Average sunshine days in July: 24.3 days
The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is November (8.7 days).
Average UV index in July
Roche Harbor, WA
- Average UV index in July: 5
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Roche Harbor, WA
- Average cloud cover in July: 23
The months with the most cloud cover are February and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in July
Roche Harbor, 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).





