July weather forecast
Helena, MT

The State Capital building of Montana in Helena city, set on a beautiful natural park
The State Capital building of Montana in Helena city, set on a beautiful natural park

Weather in July

July in Helena, Montana, is a warm summer month, with an average temperature ranging between min 50.4°F (10.2°C) and max 80.2°F (26.8°C).

Temperature

The warmest month is July, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 50.4°F (10.2°C).

Humidity

The months with the lowest humidity in Helena, Montana, are July and August, with an average relative humidity of 46%.

Rainfall

In July, the rain falls for 8.8 days. Throughout July, 0.83" (21mm) of precipitation is accumulated. Throughout the year, in Helena, there are 123.7 rainfall days, and 12.4" (315mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Helena, the average length of the day in July is 15h and 23min.
On the first day of the month, sunrise is at 5:38 am and sunset at 9:25 pm. On the last day of July, in Helena, sunrise is at 6:07 am and sunset at 9:01 pm MDT.

Sunshine

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

UV index

July is the month with the highest UV index in Helena, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 6 in July transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Helena?

July is the warmest month, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 50.4°F (10.2°C).

What is the temperature in July in Helena?

In July, in Helena, Montana, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 50.4°F (10.2°C).

What is the least humid month in Helena?

July and August, with an average relative humidity of 46%, are the least humid months in Helena.

What is the average humidity in July in Helena?

In Helena, the average relative humidity in July is 46%.

How many days does it rain in July in Helena?

In Helena, in July, during 8.8 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

When it does not snow in Helena?

June through August are months without snowfall in Helena, Montana.

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

In Helena, Montana, the average day length in July is 15h and 23min.

When are sunrise and sunset in July in Helena?

In July, on the first day of the month, sunrise is at 5:38 am and sunset at 9:25 pm. On the last day of the month, in Helena, Montana, sunrise is at 6:07 am and sunset at 9:01 pm MDT.

What month has the most sunshine in Helena?

The month with the most sunshine in Helena, Montana, is July, with an average of 11.7h of sunshine.

How many hours of sunshine does Helena have in July?

The average sunshine duration in July in Helena, Montana, is 11.7h.

When is the highest UV index in Helena?

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

What is the UV index reading in July in Helena?

In July, the average daily maximum UV index is 6. A UV Index estimate 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Helena, MT

Average temperature in July - Helena, MT
  • Average high temperature in July: 80.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (27.7°F).

  • Average low temperature in July: 50.4°F

The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is December (14.2°F).

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Average pressure in July
Helena, MT

Average pressure in July - Helena, MT
  • Average pressure in July: 29.95"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in July
Helena, MT

Average wind speed in July - Helena, MT
  • Average wind speed in July: 5.2mph

The windiest month (with the highest average wind speed) is November (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in July
Helena, MT

Average humidity in July - Helena, MT
  • Average humidity in July: 46%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (46%).

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Average rainfall in July
Helena, MT

Average rainfall in July - Helena, MT
  • Average rainfall in July: 0.83"

The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and December (0.63").

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Average rainfall days in July
Helena, MT

Average rainfall days in July - Helena, MT
  • Average rainfall days in July: 8.8 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (7 days).

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Average snowfall in July
Helena, MT

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

The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in July
Helena, MT

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

The month with the highest number of snowfall days is February (16.2 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in July / Average sunshine in July - Helena, MT
  • Average daylight in July: 15h and 23min

The month with the longest days is June (Average daylight: 15h and 46min).
The month with the shortest days is December (Average daylight: 8h and 38min).

  • Average sunshine in July: 11h and 42min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in July
Helena, MT

Average sunshine days in July - Helena, MT
  • Average sunshine days in July: 20.5 days

The month with the most sunshine days is July (20.5 days).
The month with the least sunshine days is April (9.8 days).

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Average UV index in July
Helena, MT

Average UV index in July - Helena, 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).

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Average cloud cover in July
Helena, MT

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

The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in July
Helena, MT

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

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

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