July weather forecast
Nampa, ID

Weather in July

July is a hot summer month in Nampa, Idaho, with average temperature fluctuating between 91°F (32.8°C) and 62.8°F (17.1°C).

Temperature

The warmest month is July, with an average high-temperature of 91°F (32.8°C) and an average low-temperature of 62.8°F (17.1°C).

Humidity

Months with the lowest humidity in Nampa, Idaho, are July and August, with an average relative humidity of 29%.

Rainfall

Months with the least rainfall are July and August Rain falls for 3.3 days and accumulates 0.12" (3mm) of rain.

Snowfall

In Nampa, Idaho, snow does not fall in May through October.

Daylight

The average length of the day in July is 15h.

Sunshine

The month with the most sunshine in Nampa is July, 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 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Nampa?

July is the warmest month in Nampa, Idaho, with an average high-temperature of 91°F (32.8°C) and an average low-temperature of 62.8°F (17.1°C).

What are the least humid months in Nampa?

Months with the lowest humidity in Nampa, Idaho, are July and August, with an average relative humidity of 29%.

What is the average humidity in July in Nampa?

In July, the average relative humidity in Nampa is 29%.

What is the driest month in Nampa?

July and August are months with the least rain in Nampa when the rain falls for 3.3 days and typically aggregates up to 0.12" (3mm) of rain.

How much does it rain in Nampa in July?

In Nampa, Idaho, during July, the rain falls for 3.3 days and regularly aggregates up to 0.12" (3mm) of precipitation.

When it does not snow in Nampa?

In Nampa snow does not fall in May through October.

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

In Nampa, Idaho, the average length of the day in July is 15h.

What month has the most sunshine in Nampa?

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

How many hours of sunshine does Nampa have in July?

In Nampa, the average sunshine in July is 12h.

When is the highest UV index in Nampa?

The month with the highest UV index is July, with an average maximum UV index of 7.

What is the UV index reading in July in Nampa?

In July, the average daily maximum UV index in Nampa, Idaho, is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in July
Nampa, ID

Average temperature in July - Nampa, ID
  • Average high temperature in July: 91°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in July: 62.8°F

The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).

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Average pressure in July
Nampa, ID

Average pressure in July - Nampa, ID
  • Average pressure in July: 29.91"

The month with the highest atmospheric pressure is January (30.25").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in July
Nampa, ID

Average wind speed in July - Nampa, ID
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).

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Average humidity in July
Nampa, ID

Average humidity in July - Nampa, ID
  • Average humidity in July: 29%

The month with the highest relative humidity is January (78%).
Months with the lowest relative humidity are July and August (29%).

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Average rainfall in July
Nampa, ID

Average rainfall in July - Nampa, ID
  • Average rainfall in July: 0.12"

The wettest month (with the highest rainfall) is March (1.46").
The driest months (with the least rainfall) are July and August (0.12").

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Average rainfall days in July
Nampa, ID

Average rainfall days in July - Nampa, ID
  • Average rainfall days in July: 3.3 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (3.1 days).

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Average snowfall in July
Nampa, ID

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

The month with the highest snowfall is January (3.23").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Nampa, ID

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

The month with the highest number of snowfall days is December (6.6 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Nampa, ID
  • Average daylight in July: 15h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in July: 12h

The month with the most sunshine is July (Average sunshine: 12h).
Months with the least sunshine are January and December (Average sunshine: 5.8).

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Average sunshine days in July
Nampa, ID

Average sunshine days in July - Nampa, ID
  • Average sunshine days in July: 25.7 days

The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (14 days).

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Average UV index in July
Nampa, ID

Average UV index in July - Nampa, ID
  • Average UV index in July: 7

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Nampa, ID

Average cloud cover in July - Nampa, ID
  • Average cloud cover in July: 8

Months with the most cloud cover are January and December (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in July
Nampa, ID

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

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

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