July weather forecast
Westby, MT

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Weather in July

July, the same as June, is another warm summer month in Westby, Montana, with an average temperature varying between 61°F (16.1°C) and 82°F (27.8°C).

Temperature

Westby witnesses the warmest weather in July, with temperatures averaging a high of 82°F (27.8°C) and a low of 61°F (16.1°C).

Heat index

For July, the heat index is calculated to be 82.4°F (28°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In Westby, Montana, the average relative humidity in July is 50%.

Rainfall

In July, the rain falls for 10.4 days. Throughout July, 1.38" (35mm) of precipitation is accumulated. In Westby, during the entire year, the rain falls for 93.3 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

In Westby, snow does not fall in June through September.

Daylight

In Westby, Montana, the average length of the day in July is 15h and 41min.
On the first day of July in Westby, sunrise is at 5:57 am and sunset at 10:03 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 9:35 pm CDT.

Sunshine

With an average of 11.7h of sunshine, July has the most sunshine of the year.

UV index

The month with the highest UV index is July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 during July translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in Westby?

Westby's temperature records reveal July as the warmest month, marked by average highs of 82°F (27.8°C) and lows of 61°F (16.1°C).

What are July temperatures in Westby?

An average high-temperature, in July, in Westby, is 82°F (27.8°C) and the average low-temperature is 61°F (16.1°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 82.4°F (28°C).

What is the average humidity in July in Westby?

In Westby, the average relative humidity in July is 50%.

How much does it rain in Westby in July?

In July, in Westby, the rain falls for 10.4 days. Throughout July, 1.38" (35mm) of precipitation is accumulated.

When it does not snow in Westby?

June through September are months without snowfall in Westby.

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

In Westby, Montana, the average day length in July is 15h and 41min.

What time are sunrise and sunset in July in Westby?

On the first day of July, sunrise is at 5:57 am and sunset at 10:03 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 9:35 pm CDT.

What month has the most sunshine in Westby?

With an average of 11.7h of sunshine, July has the most sunshine of the year in Westby.

How many hours of sunshine does Westby have in July?

In Westby, Montana, the average sunshine duration in July is 11.7h.

What is the month with the highest UV index in Westby?

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

How high is the UV index in July in Westby?

The average daily maximum UV index in July in Westby is 6. A UV Index of 6 to 7 symbolizes a high 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
Westby, MT

Average temperature in July - Westby, MT
  • Average high temperature in July: 82°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (19.8°F).

  • Average low temperature in July: 61°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (6.3°F).

Average pressure in July
Westby, MT

Average pressure in July - Westby, MT
  • Average pressure in July: 29.89"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in July
Westby, MT

Average wind speed in July - Westby, MT
  • Average wind speed in July: 9.6mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).

Average humidity in July
Westby, MT

Average humidity in July - Westby, MT
  • Average humidity in July: 50%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (46%).

Average rainfall in July
Westby, MT

Average rainfall in July - Westby, MT
  • Average rainfall in July: 1.38"

The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in July
Westby, MT

Average rainfall days in July - Westby, MT
  • Average rainfall days in July: 10.4 days

The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in July
Westby, MT

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

The month with the highest snowfall is November (3.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Westby, MT

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

The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Westby, 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 18min).

  • Average sunshine in July: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in July
Westby, MT

Average sunshine days in July - Westby, MT
  • Average sunshine days in July: 18 days

The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are February and June (13.8 days).

Average UV index in July
Westby, MT

Average UV index in July - Westby, MT
  • Average UV index in July: 6

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in July
Westby, MT

Average cloud cover in July - Westby, MT
  • Average cloud cover in July: 19

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 19).

Average visibility in July
Westby, MT

Average visibility in July - Westby, MT
  • 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, March and December (5mi).

Westby, Montana, USA

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