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 average high-temperature mildly increases in July, edging from a refreshing 67.3°F (19.6°C) in June to a warm 74.8°F (23.8°C). Despite higher daytime temperatures, nighttime averages fall to a frosty 49.6°F (9.8°C) in July in Sumner.Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 70%.Rainfall
The month with the least rainfall is July, when the rain falls for 7.6 days and typically collects 0.51" (13mm) of precipitation.Snowfall
In Sumner, snow does not fall in May through October.Daylight
In July, the average length of the day in Sumner is 15h and 28min.On the first day of July in Sumner, sunrise is at 5:17 am and sunset at 9:08 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:43 pm PDT.
Sunshine
In Sumner, the average sunshine in July is 10.7h.UV index
July is the month with the highest UV index, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In July, the maximum UV index of 5 suggests this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What are July temperatures in Sumner?
What are the least humid months in Sumner?
What is the average humidity in July in Sumner?
What is the driest month in Sumner?
How many days does it rain in July in Sumner?
When it does not snow in Sumner?
What is the average length of the day in July in Sumner?
What time are sunrise and sunset in July in Sumner?
How many hours of sunshine does Sumner have in July?
What is the month with the highest UV index in Sumner?
How high is the UV index in July in Sumner?
Average temperature in July
Sumner, WA
- Average high temperature in July: 74.8°F
The warmest month (with the highest average high temperature) is August (75.7°F).
The month with the lowest average high temperature is December (41.4°F).
- Average low temperature in July: 49.6°F
The month with the highest average low temperature is August (50.9°F).
The coldest month (with the lowest average low temperature) is December (32°F).
Average pressure in July
Sumner, WA
- Average pressure in July: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in July
Sumner, WA
- Average wind speed in July: 3.6mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in July
Sumner, WA
- Average humidity in July: 70%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall in July
Sumner, WA
- Average rainfall in July: 0.51"
The wettest month (with the highest rainfall) is December (5.35").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in July
Sumner, WA
- Average rainfall days in July: 7.6 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.8 days).
Average snowfall in July
Sumner, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Sumner, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (5.3 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
Sumner, 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: 10h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in July
Sumner, WA
- Average sunshine days in July: 21.7 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in July
Sumner, 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, October, November and December (UV index 2).
Average cloud cover in July
Sumner, WA
- Average cloud cover in July: 27
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in July
Sumner, WA
- Average visibility in July: 6mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February and December (4mi).
Sumner, Washington, USA
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