July weather forecast
Shelby, MT

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Weather in July

July is the peak of summer in Shelby, Montana, and the city basks under the warm sunlight. With an average high temperature of 80.8°F (27.1°C), it stands as the warmest month of the year. In contrast to the winter months, cloud coverage is minimal, and rain or snow is quite rare, providing plenty of opportunities for long, sunny days. It is a great time for road trips and outdoor summer concerts. As the summer heat takes hold, locals take advantage of the high temperatures for summer bonfires and night sky observations.

Temperature

July, with average temperatures reaching a high of 80.8°F (27.1°C) and a low of 57.4°F (14.1°C), is the warmest month.

Heat index

In July, the heat index is evaluated at 80.6°F (27°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In July, the average relative humidity is 44%.

Rainfall

In Shelby, in July, during 7.3 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, there are 84.2 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

June through August are months without snowfall.

Daylight

In Shelby, the average length of the day in July is 15h and 38min.
On the first day of July, sunrise is at 5:30 am and sunset at 9:32 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 9:05 pm MDT.

Sunshine

The month with the most sunshine is July, with an average of 11.9h of sunshine.

UV index

With an average maximum UV index of 6, July is the month with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 6 translates into these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

With average temperatures fluctuating between a high of 80.8°F (27.1°C) and a low of 57.4°F (14.1°C), July stands out as the warmest month.

What are July temperatures?

The average high-temperature and low-temperature during July are 80.8°F (27.1°C) and 57.4°F (14.1°C) respectively. In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 80.6°F (27°C).

What is the average humidity in July?

In July, the average relative humidity is 44%.

How many days does it rain in July?

In Shelby, in July, it is raining for 7.3 days, with typically 0.55" (14mm) of accumulated precipitation.

When it does not snow?

June through August are months without snowfall in Shelby.

What is the average length of the day in July?

In July, the average day length is 15h and 38min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:30 am and sunset at 9:32 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 9:05 pm MDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11.9h of sunshine.

How long on average sun shines in July?

In Shelby, the average sunshine duration in July is 11.9h.

When is the highest UV index in Shelby?

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?

In Shelby, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Shelby, MT

Average temperature in July - Shelby, MT
  • Average high temperature in July: 80.8°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (27.7°F).

  • Average low temperature in July: 57.4°F

The month with the highest average low temperature is August (58.3°F).
The coldest month (with the lowest average low temperature) is December (15.4°F).

Average pressure in July
Shelby, MT

Average pressure in July - Shelby, MT
  • Average pressure in July: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in July
Shelby, MT

Average wind speed in July - Shelby, MT
  • Average wind speed in July: 8.9mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

Average humidity in July
Shelby, MT

Average humidity in July - Shelby, MT
  • Average humidity in July: 44%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (40%).

Average rainfall in July
Shelby, MT

Average rainfall in July - Shelby, MT
  • Average rainfall in July: 0.55"

The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and December (0.39").

Average rainfall days in July
Shelby, MT

Average rainfall days in July - Shelby, MT
  • Average rainfall days in July: 7.3 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is February (3.1 days).

Average snowfall in July
Shelby, MT

Average snowfall in July - Shelby, MT
  • Average snowfall in July: 0"

The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").

Average snowfall days in July
Shelby, MT

Average snowfall days in July - Shelby, MT
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in July /
Average sunshine in July
Shelby, MT

Average daylight in July / Average sunshine in July - Shelby, MT
  • Average daylight in July: 15h and 4min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in July: 11h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in July
Shelby, MT

Average sunshine days in July - Shelby, MT
  • Average sunshine days in July: 21.1 days

The month with the most sunshine days is September (22.2 days).
The month with the least sunshine days is April (14.7 days).

Average UV index in July
Shelby, MT

Average UV index in July - Shelby, MT
  • 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, March, October, November and December (UV index 2).

Average cloud cover in July
Shelby, MT

Average cloud cover in July - Shelby, MT
  • Average cloud cover in July: 15

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in July
Shelby, MT

Average visibility in July - Shelby, MT
  • Average visibility in July: 6mi

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

Shelby, Montana, USA

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