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 months of July and August are noted for their peak temperatures, with an average high-temperature of 82°F (27.8°C).Heat index
In July, the heat index is evaluated at 82.4°F (28°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 46%.Rainfall
The month with the least rainfall in Umtanum is July, when the rain falls for 2.9 days and typically collects 0.16" (4mm) of precipitation.Snowfall
In Umtanum, snow does not fall in May through August.Daylight
The average length of the day in July in Umtanum, Washington, is 15h and 26min.On the first day of the month, sunrise is at 5:12 am and sunset at 8:59 pm. On the last day of July, in Umtanum, sunrise is at 5:41 am and sunset at 8:34 pm PDT.
Sunshine
The months with the most sunshine are July and August, with an average of 12h of sunshine.UV index
The month with the highest UV index in Umtanum, Washington, is July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in July converts into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Umtanum?
What is the average July temperature in Umtanum?
What are the least humid months in Umtanum?
What is the average humidity in July in Umtanum?
What is the driest month in Umtanum?
How many days does it rain in July in Umtanum?
When it does not snow in Umtanum?
What is the average length of the day in July in Umtanum?
What time are sunrise and sunset in July in Umtanum?
What is the month with the most sunshine in Umtanum?
How many hours of sunshine does Umtanum have in July?
When is the highest UV index in Umtanum?
What is the UV index reading in July in Umtanum?
Average temperature in July
Umtanum, WA
- Average high temperature in July: 82°F
The warmest months (with the highest average high temperature) are July and August (82°F).
The month with the lowest average high temperature is December (33.3°F).
- Average low temperature in July: 54.9°F
The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in July
Umtanum, WA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in July
Umtanum, WA
- Average wind speed in July: 8.8mph
The windiest month (with the highest average wind speed) is June (8.9mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in July
Umtanum, WA
- Average humidity in July: 46%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (46%).
Average rainfall in July
Umtanum, WA
- Average rainfall in July: 0.16"
The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in July
Umtanum, WA
- Average rainfall days in July: 2.9 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in July
Umtanum, WA
- Average snowfall in July: 0"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in July
Umtanum, WA
- Average snowfall days in July: 0 days
The months with the highest number of snowfall days are January and December (8.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Umtanum, WA
- Average daylight in July: 15h and 2min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in July: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).
Average sunshine days in July
Umtanum, WA
- Average sunshine days in July: 27.1 days
The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is February (13.5 days).
Average UV index in July
Umtanum, WA
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in July
Umtanum, WA
- Average cloud cover in July: 11
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in July
Umtanum, WA
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Umtanum, Washington, USA
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