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 snowfall in July
- Average snowfall 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 shift from June to July sees an increase in the average high-temperature, transitioning from a comfortable 64°F (17.8°C) to a moderately hot 74.8°F (23.8°C). Roslyn anticipates a considerable daily temperature fluctuation in July, with low temperatures averaging a frosty 47.5°F (8.6°C).Humidity
July and August, with an average relative humidity of 60%, are the least humid months in Roslyn.Rainfall
July is the month with the least rainfall. Rain falls for 7 days and accumulates 0.39" (10mm) of precipitation.Snowfall
June through August are months without snowfall.Daylight
In July, the average length of the day in Roslyn is 15h and 28min.On the first day of July, sunrise is at 5:12 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:38 pm PDT.
Sunshine
In July, the average sunshine in Roslyn is 11.8h.UV index
With an average maximum UV index of 5, July is the month with the highest UV index in Roslyn. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In July, the maximum UV index of 5 translates into these guidelines:
Take precautions - Protection against sunburn is recommended. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What is the average July temperature in Roslyn?
What are the least humid months in Roslyn?
What is the average humidity in July in Roslyn?
What is the driest month in Roslyn?
How much does it rain in Roslyn in July?
When it does not snow in Roslyn?
What is the average length of the day in July in Roslyn?
When is the sunrise / sunset in July in Roslyn?
How many hours of sunshine does Roslyn have in July?
What is the month with the highest UV index in Roslyn?
What is the UV index reading in July in Roslyn?
Average temperature in July
Roslyn, WA
- Average high temperature in July: 74.8°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in July: 47.5°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (18.3°F).
Average pressure in July
Roslyn, WA
- Average pressure in July: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in July
Roslyn, WA
- Average wind speed in July: 6.6mph
The windiest month (with the highest average wind speed) is June (6.7mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in July
Roslyn, WA
- Average humidity in July: 60%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are July and August (60%).
Average rainfall in July
Roslyn, WA
- Average rainfall in July: 0.39"
The wettest month (with the highest rainfall) is January (4.41").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in July
Roslyn, WA
- Average rainfall days in July: 7 days
The months with the highest number of rainy days are March and April (18.3 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in July
Roslyn, WA
- Average snowfall in July: 0"
The month with the highest snowfall is January (16.3").
The months with the least snowfall are June, July and August (0").
Average snowfall days in July
Roslyn, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (15.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Roslyn, WA
- Average daylight in July: 15h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in July: 11h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in July
Roslyn, WA
- Average sunshine days in July: 21.9 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in July
Roslyn, 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 1).
Average cloud cover in July
Roslyn, WA
- Average cloud cover in July: 18
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in July
Roslyn, WA
- Average visibility in July: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (3mi).
Roslyn, Washington, USA
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