July weather forecastWilliams, OR
July
Weather in July
July in Williams, Oregon, is a warm summer month, with an average temperature fluctuating between 83.3°F (28.5°C) and 49.5°F (9.7°C).Temperature
With the onset of July, Williams's average high-temperature sees a rise, moving from June's agreeable 72.3°F (22.4°C) to a moderately hot 83.3°F (28.5°C). A notable decrease from the day's highest temperature marks July, culminating in an average low of 49.5°F (9.7°C).Heat index
July's heat index is estimated at a hot 86°F (30°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. 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 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In July, the average relative humidity is 62%.Rainfall
The month with the least rainfall is July, when the rain falls for 3.8 days and typically collects 0.28" (7mm) of precipitation.Snowfall
In Williams, snow does not fall in June through September.Daylight
The average length of the day in July is 14h and 54min.On the first day of July, sunrise is at 5:41 am and sunset at 8:53 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:32 pm PDT.
Sunshine
July and August, with an average of 11.8h of sunshine, are months with the most sunshine.UV index
July is the month with the highest UV index in Williams, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 6 in July translates into the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Williams, OR
- Average high temperature in July: 83.3°F
The warmest month (with the highest average high temperature) is August (84.4°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in July: 49.5°F
The months with the highest average low temperature are July and August (49.5°F).
The coldest month (with the lowest average low temperature) is December (28.9°F).
Average pressure in July
Williams, OR
- Average pressure in July: 29.99"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in July
Williams, OR
- Average wind speed in July: 3.5mph
The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in July
Williams, OR
- Average humidity in July: 62%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (60%).
Average rainfall in July
Williams, OR
- Average rainfall in July: 0.28"
The wettest month (with the highest rainfall) is January (2.01").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in July
Williams, OR
- Average rainfall days in July: 3.8 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in July
Williams, OR
- Average snowfall in July: 0"
The month with the highest snowfall is December (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Williams, OR
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Williams, OR
- Average daylight in July: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in July: 11h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 0min).
Average sunshine days in July
Williams, OR
- Average sunshine days in July: 25.3 days
The months with the most sunshine days are July and August (25.3 days).
The month with the least sunshine days is March (15 days).
Average UV index in July
Williams, OR
- 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 2).
Average cloud cover in July
Williams, OR
- Average cloud cover in July: 16
The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in July
Williams, OR
- Average visibility in July: 6mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).





