July weather forecast
Cedar Mill, OR

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Weather in July

July is a moderately hot summer month in Cedar Mill, Oregon, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 81°F (27.2°C).

Temperature

As Cedar Mill transitions into July, a marginal rise in the average high-temperature is observed, moving from a pleasant 72.5°F (22.5°C) in June to a warm 81°F (27.2°C). Cedar Mill experiences a consistent, yet significant, drop from daily highs to a low-temperature of 53.4°F (11.9°C) throughout July.

Heat index

July's mean heat index is calculated to be 84.2°F (29°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

In Cedar Mill, the average relative humidity in July is 64%.

Rainfall

The month with the least rainfall is July, when the rain falls for 4.7 days and typically collects 0.31" (8mm) of precipitation.

Snowfall

In Cedar Mill, Oregon, snow does not fall in April through October.

Daylight

The average length of the day in July is 15h and 16min.
On the first day of the month, sunrise is at 5:26 am and sunset at 9:03 pm. On the last day of July, sunrise is at 5:54 am and sunset at 8:40 pm PDT.

Sunshine

In Cedar Mill, the average sunshine in July is 10.8h.

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 threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 during July translates into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in July?

In Cedar Mill, 81°F (27.2°C) is the average high-temperature and 53.4°F (11.9°C) is the average low-temperature during July. In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 84.2°F (29°C).

What is the average humidity in July?

The average relative humidity in July is 64%.

What is the driest month?

The month with the least rainfall is July, when the rain falls for 4.7 days and typically collects 0.31" (8mm) of precipitation.

How many days does it rain in July?

In Cedar Mill, during July, the rain falls for 4.7 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When it does not snow?

In Cedar Mill, snow does not fall in April through October.

How many hours of daylight does Cedar Mill have in July?

In Cedar Mill, the average day length in July is 15h and 16min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:26 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:40 pm PDT.

How long on average sun shines in July?

In July, the average sunshine duration is 10.8h.

When is the highest UV index?

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

What is the UV index reading in July?

In Cedar Mill, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe 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
Cedar Mill, OR

Average temperature in July - Cedar Mill, OR
  • Average high temperature in July: 81°F

The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).

  • Average low temperature in July: 53.4°F

The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).

Average pressure in July
Cedar Mill, OR

Average pressure in July - Cedar Mill, OR
  • Average pressure in July: 30.04"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in July
Cedar Mill, OR

Average wind speed in July - Cedar Mill, OR
  • Average wind speed in July: 4.3mph

The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in July
Cedar Mill, OR

Average humidity in July - Cedar Mill, OR
  • Average humidity in July: 64%

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).

Average rainfall in July
Cedar Mill, OR

Average rainfall in July - Cedar Mill, OR
  • Average rainfall in July: 0.31"

The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in July
Cedar Mill, OR

Average rainfall days in July - Cedar Mill, OR
  • Average rainfall days in July: 4.7 days

The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).

Average snowfall in July
Cedar Mill, OR

Average snowfall in July - Cedar Mill, OR
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Cedar Mill, OR

Average snowfall days in July - Cedar Mill, OR
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Cedar Mill, OR

Average daylight in July / Average sunshine in July - Cedar Mill, OR
  • Average daylight in July: 15h and 2min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in July: 10h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in July
Cedar Mill, OR

Average sunshine days in July - Cedar Mill, OR
  • Average sunshine days in July: 24.9 days

The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).

Average UV index in July
Cedar Mill, OR

Average UV index in July - Cedar Mill, 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
Cedar Mill, OR

Average cloud cover in July - Cedar Mill, OR
  • Average cloud cover in July: 25

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in July
Cedar Mill, OR

Average visibility in July - Cedar Mill, 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, May, June, October, November and December (5mi).

Cedar Mill, Oregon, USA

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