July weather forecast
Williams, OR

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Weather in July

July in Williams, Oregon, is a moderately hot summer month, with temperature in the range of an average high of 83.3°F (28.5°C) and an average low of 49.5°F (9.7°C).

Temperature

As Williams enters July, the average high-temperature increases from the an agreeable 72.3°F (22.4°C) of June to a moderately hot 83.3°F (28.5°C). Nighttime in July brings a stark departure from the daily high, resting at an average low-temperature of 49.5°F (9.7°C).

Heat index

In July, the heat index is calculated to be a hot 86°F (30°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The average relative humidity in July in Williams is 62%.

Rainfall

July is the month with the least rainfall in Williams. Rain falls for 3.8 days and accumulates 0.28" (7mm) of precipitation.

Snowfall

In Williams, snow does not fall in June through September.

Daylight

In Williams, 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

The months with the most sunshine in Williams are July and August, with an average of 11.8h of sunshine.

UV index

The month with the highest UV index is July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in July converts into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

Is it hot in Williams during July?

In July, in Williams, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 49.5°F (9.7°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in July in Williams?

In Williams, Oregon, the average relative humidity in July is 62%.

What is the driest month in Williams?

The month with the least rainfall in Williams, Oregon, is July, when the rain falls for 3.8 days and typically collects 0.28" (7mm) of precipitation.

How many days does it rain in July in Williams?

In July, in Williams, Oregon, the rain falls for 3.8 days. Throughout July, 0.28" (7mm) of precipitation is accumulated.

When it does not snow in Williams?

June through September are months without snowfall in Williams.

What is the average length of the day in July in Williams?

The average day length in July is 14h and 54min.

When is the sunrise / sunset in July in Williams?

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.

What are the months with the most sunshine in Williams?

July and August, with an average of 11.8h of sunshine, are months with the most sunshine in Williams, Oregon.

How long on average sun shines in July in Williams?

In Williams, Oregon, the average sunshine duration in July is 11.8h.

When is the highest UV index in Williams?

July is the month with the highest UV index, with an average maximum UV index of 6.

What is the UV index intensity in July in Williams?

In Williams, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Williams, OR

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).

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Average pressure in July
Williams, OR

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).

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Average wind speed in July
Williams, OR

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).

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Average humidity in July
Williams, OR

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%).

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Average rainfall in July
Williams, OR

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").

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Average rainfall days in July
Williams, OR

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).

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Average snowfall in July
Williams, OR

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").

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Average snowfall days in July
Williams, OR

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).

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Average daylight in July /
Average sunshine in July
Williams, OR

Average daylight in July / Average sunshine in July - Williams, OR
  • Average daylight in July: 14h and 5min

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 5min

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).

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Average sunshine days in July
Williams, OR

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).

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Average UV index in July
Williams, OR

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).

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Average cloud cover in July
Williams, OR

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).

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Average visibility in July
Williams, OR

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).

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Williams, Oregon, USA

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