July weather forecast and climate
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 is a moderately hot summer month in Helena, Montana, with 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

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

Rainfall

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

Snowfall

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

Daylight

In Helena, Montana, the average length of the day in July is 15.4h.

Sunshine

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

UV index

The month with the highest UV index in Helena is July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Helena?

The warmest month in Helena 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).

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 are the least humid months in Helena?

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

What is the average humidity in July in Helena?

The average relative humidity in July in Helena, Montana, is 46%.

How much does it rain in Helena in July?

In Helena, Montana, 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 length of the day in July is 15.4h.

What month has the most sunshine in Helena?

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

How many hours of sunshine does Helena have in July?

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

When is the highest UV index in Helena?

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

What is the UV index intensity in July in Helena?

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

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"

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

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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%).
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").
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).
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: 15.4h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in July: 11.7h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is January (Average sunshine: 5.6h).

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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).
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

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

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