July weather forecastKeller, WA
July
Weather in July
July in Keller, Washington, is a warm summer month, with an average temperature fluctuating between 50.7°F (10.4°C) and 82.4°F (28°C).Temperature
Keller sees an increase in average high-temperatures during July, moving from an agreeable 71.1°F (21.7°C) in June to a warm 82.4°F (28°C). Despite the stark contrast with daytime temperatures, Keller's July nights average at a fresh 50.7°F (10.4°C).Heat index
Throughout July, the heat index is appraised at 82.4°F (28°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Heat index determinations are made taking into account the shade and light air movements. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
In July, the average relative humidity is 48%.Rainfall
In Keller, during July, the rain falls for 6.3 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Keller, during the entire year, the rain falls for 86.6 days and collects up to 6.38" (162mm) of precipitation.Snowfall
May through August and October are months without snowfall.Daylight
In Keller, Washington, the average length of the day in July is 15h and 35min.On the first day of July, sunrise is at 4:59 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:31 pm PDT.
Sunshine
In July, the average sunshine is 11.8h.UV index
With an average maximum UV index of 6, July is the month with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 6 during July leads to these advisories:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Keller, WA
- Average high temperature in July: 82.4°F
The warmest month (with the highest average high temperature) is August (82.8°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in July: 50.7°F
The month with the highest average low temperature is August (52.3°F).
The coldest months (with the lowest average low temperature) are February and December (18.3°F).
Average pressure in July
Keller, WA
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in July
Keller, WA
- Average wind speed in July: 4mph
The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are January and December (3.4mph).
Average humidity in July
Keller, WA
- Average humidity in July: 48%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall in July
Keller, WA
- Average rainfall in July: 0.43"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in July
Keller, WA
- Average rainfall days in July: 6.3 days
The month with the highest number of rainy days is May (11.3 days).
The months with the least rainy days are February and September (5 days).
Average snowfall in July
Keller, WA
- Average snowfall in July: 0"
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in July
Keller, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Keller, WA
- Average daylight in July: 15h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in July: 11h and 48min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in July
Keller, WA
- Average sunshine days in July: 22.2 days
The month with the most sunshine days is September (23.8 days).
The month with the least sunshine days is June (17.3 days).
Average UV index in July
Keller, 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, November and December (UV index 1).
Average cloud cover in July
Keller, WA
- Average cloud cover in July: 14
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in July
Keller, WA
- Average visibility in July: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (2mi).
