July weather forecast
Rochester, WA

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Weather in July

July is a moderately hot summer month in Rochester, Washington, with an average temperature varying between 48.6°F (9.2°C) and 76.6°F (24.8°C).

Temperature

As June transitions into July, Rochester notices a gentle rise in the average high-temperature, transitioning from an agreeable 69.8°F (21°C) to a moderately hot 76.6°F (24.8°C). Rochester's nights in July are distinguished by a pronounced temperature shift from the day, with an average low of 48.6°F (9.2°C).

Humidity

With an average relative humidity of 73%, July is the least humid month.

Rainfall

The month with the least rainfall is July, when the rain falls for 6.3 days and typically collects 0.35" (9mm) of precipitation.

Snowfall

In Rochester, snow does not fall in April through October.

Daylight

In Rochester, the average length of the day in July is 15h and 25min.
On the first day of the month, sunrise is at 5:22 am and sunset at 9:10 pm. On the last day of July, sunrise is at 5:52 am and sunset at 8:45 pm PDT.

Sunshine

In July, the average sunshine is 9.9h.

UV index

June and July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 in July converts into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What is the average July temperature?

The average high-temperature, in July, in Rochester, is 76.6°F (24.8°C), while the average low-temperature is 48.6°F (9.2°C).

What is the least humid month?

The least humid month is July, with an average relative humidity of 73%.

What is the average humidity in July in Rochester?

In Rochester, the average relative humidity in July is 73%.

What is the driest month?

July is the month with the least rainfall in Rochester, Washington. Rain falls for 6.3 days and accumulates 0.35" (9mm) of precipitation.

How many days does it rain in July?

In July, the rain falls for 6.3 days. Throughout July, 0.35" (9mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in July?

The average day length in July is 15h and 25min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:22 am and sunset at 9:10 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:45 pm PDT.

How many hours of sunshine does Rochester have in July?

In Rochester, the average sunshine duration in July is 9.9h.

When is the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 5.

What is the UV index reading in July?

The average daily maximum UV index in July is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Rochester, WA

Average temperature in July - Rochester, WA
  • Average high temperature in July: 76.6°F

The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in July: 48.6°F

The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).

Average pressure in July
Rochester, WA

Average pressure in July - Rochester, WA
  • Average pressure in July: 30.06"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).

Average wind speed in July
Rochester, WA

Average wind speed in July - Rochester, WA
  • Average wind speed in July: 4mph

The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

Average humidity in July
Rochester, WA

Average humidity in July - Rochester, WA
  • Average humidity in July: 73%

The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).

Average rainfall in July
Rochester, WA

Average rainfall in July - Rochester, WA
  • Average rainfall in July: 0.35"

The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in July
Rochester, WA

Average rainfall days in July - Rochester, WA
  • Average rainfall days in July: 6.3 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).

Average snowfall in July
Rochester, WA

Average snowfall in July - Rochester, WA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Rochester, WA

Average snowfall days in July - Rochester, WA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Rochester, WA

Average daylight in July / Average sunshine in July - Rochester, 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: 9h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days in July
Rochester, WA

Average sunshine days in July - Rochester, WA
  • Average sunshine days in July: 20.8 days

The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).

Average UV index in July
Rochester, WA

Average UV index in July - Rochester, WA
  • Average UV index in July: 5

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July
Rochester, WA

Average cloud cover in July - Rochester, WA
  • Average cloud cover in July: 38

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).

Average visibility in July
Rochester, WA

Average visibility in July - Rochester, WA
  • Average visibility in July: 5mi

The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).

Rochester, Washington, USA

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