July weather forecast
Preston, ID

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Weather in July

In the peak of summer, July sits as the warmest month in Preston, Idaho with temperatures escalating to about 84.4°F (29.1°C) at their highest. The city experiences the longest daylight hours, nearly 15 hours, accentuating its summer vibrancy. With the shift in seasons, precipitation also transitions from rainfall to negligible amounts of snowfall. Increased sunshine and limited cloud cover make July a great time for outdoor exploration and activities. It's the zenith of summer, where warmth, luminosity, and arid conditions dominate Preston.

Temperature

The warmest time of the year is July, with temperatures averaging a high of 84.4°F (29.1°C) and a low of 53.8°F (12.1°C).

Humidity

In July, the average relative humidity is 39%.

Rainfall

The month with the least rainfall is July, when the rain falls for 5.5 days and typically collects 0.35" (9mm) of precipitation.

Snowfall

June through August are months without snowfall.

Daylight

The average length of the day in July is 14h and 53min.
On the first day of July, sunrise is at 5:55 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:47 pm MDT.

Sunshine

July has the most sunshine of the year, with an average of 12h of sunshine.

UV index

July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 6 in July transforms into the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

July, with average temperatures reaching a high of 84.4°F (29.1°C) and a low of 53.8°F (12.1°C), is the warmest month.

How hot does it get in July?

In Preston, 84.4°F (29.1°C) is the average high-temperature and 53.8°F (12.1°C) is the average low-temperature during July.

What is the average humidity in July?

The average relative humidity in July is 39%.

What is the driest month?

July is the month with the least rainfall in Preston. Rain falls for 5.5 days and accumulates 0.35" (9mm) of precipitation.

How much does it rain in July?

In Preston, in July, it is raining for 5.5 days, with typically 0.35" (9mm) of accumulated precipitation.

When it does not snow in Preston?

In Preston, snow does not fall in June through August.

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

The average day length in July is 14h and 53min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:55 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:47 pm MDT.

What month has the most sunshine in Preston?

With an average of 12h of sunshine, July has the most sunshine of the year.

How many hours of sunshine does Preston have in July?

The average sunshine duration in July is 12h.

What is the month with the highest UV index?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents 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
Preston, ID

Average temperature in July - Preston, ID
  • Average high temperature in July: 84.4°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (28.8°F).

  • Average low temperature in July: 53.8°F

The month with the highest average low temperature is July (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in July
Preston, ID

Average pressure in July - Preston, ID
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in July
Preston, ID

Average wind speed in July - Preston, ID
  • Average wind speed in July: 5.4mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

Average humidity in July
Preston, ID

Average humidity in July - Preston, ID
  • Average humidity in July: 39%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (38%).

Average rainfall in July
Preston, ID

Average rainfall in July - Preston, ID
  • Average rainfall in July: 0.35"

The wettest month (with the highest rainfall) is February (2.24").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in July
Preston, ID

Average rainfall days in July - Preston, ID
  • Average rainfall days in July: 5.5 days

The month with the highest number of rainy days is April (16.6 days).
The month with the least rainy days is July (5.5 days).

Average snowfall in July
Preston, ID

Average snowfall in July - Preston, ID
  • Average snowfall in July: 0"

The month with the highest snowfall is January (16.73").
The months with the least snowfall are June, July and August (0").

Average snowfall days in July
Preston, ID

Average snowfall days in July - Preston, ID
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (17.6 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in July /
Average sunshine in July
Preston, ID

Average daylight in July / Average sunshine in July - Preston, ID
  • 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: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in July
Preston, ID

Average sunshine days in July - Preston, ID
  • Average sunshine days in July: 21.8 days

The month with the most sunshine days is July (21.8 days).
The month with the least sunshine days is February (8.3 days).

Average UV index in July
Preston, ID

Average UV index in July - Preston, ID
  • 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 and December (UV index 1).

Average cloud cover in July
Preston, ID

Average cloud cover in July - Preston, ID
  • Average cloud cover in July: 10

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 10).

Average visibility in July
Preston, ID

Average visibility in July - Preston, ID
  • Average visibility in July: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

Preston, Idaho, USA

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