July weather forecast
Great Falls, MT

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A far view from on top of the vast Missouri River of the City of Lights, Great Falls, Montana
A far view from on top of the vast Missouri River of the City of Lights, Great Falls, Montana

Weather in July

In July, Great Falls experiences its warmest weather. The city’s climate peaks with high temperatures reaching up to 83.1°F (28.4°C). Known as the apex of summer, it's the hottest period within Montana’s weather cycle. Transitioning from July to August, the temperature stays relatively steady, providing a seamless transition. This period is widely celebrated with many outdoor festivals and activities, taking full advantage of the warm weather.

Temperature

In Great Falls, July is the month with the highest recorded average temperatures, measuring a high of 83.1°F (28.4°C) and a low of 56.3°F (13.5°C).

Heat index

During July, the heat index is appraised at 82.4°F (28°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

In July, the average relative humidity is 43%.

Rainfall

In Great Falls, in July, it is raining for 4.1 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, in Great Falls, there are 68.2 rainfall days, and 4.49" (114mm) of precipitation is accumulated.

Snowfall

In Great Falls, snow does not fall in June through August.

Daylight

The average length of the day in July is 15h and 31min.
On the first day of July, sunrise is at 5:32 am and sunset at 9:25 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 9:00 pm MDT.

Sunshine

July has the most sunshine of the year, with an average of 12.1h of sunshine.

UV index

July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: An average UV index of 6 in July transforms into this advice:
Fend off overexposure. Sun protection is vital. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What time of the year is the hottest?

Great Falls, Montana, notes the warmest temperatures in July, with a average high of 83.1°F (28.4°C) and a low of 56.3°F (13.5°C).

How hot is July?

In July, in Great Falls, the average high-temperature is 83.1°F (28.4°C), and the average low-temperature is 56.3°F (13.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 82.4°F (28°C).

What is the average humidity in July in Great Falls?

The average relative humidity in July is 43%.

How many days does it rain in July?

In Great Falls, during July, the rain falls for 4.1 days and regularly aggregates up to 0.2" (5mm) of precipitation.

When it does not snow?

June through August are months without snowfall.

How many hours of daylight does Great Falls have in July?

In July, the average day length is 15h and 31min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:32 am and sunset at 9:25 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 9:00 pm MDT.

What month has the most sunshine in Great Falls?

The month with the most sunshine is July, with an average of 12.1h of sunshine.

How many hours of sunshine does Great Falls have in July?

In Great Falls, the average sunshine duration in July is 12.1h.

When is the highest UV index?

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

What is the UV index reading in July?

In Great Falls, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents 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
Great Falls, MT

Average temperature in July - Great Falls, MT
  • Average high temperature in July: 83.1°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (30°F).

  • Average low temperature in July: 56.3°F

The month with the highest average low temperature is August (57.7°F).
The coldest months (with the lowest average low temperature) are February and December (18.3°F).

Average pressure in July
Great Falls, MT

Average pressure in July - Great Falls, MT
  • Average pressure in July: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in July
Great Falls, MT

Average wind speed in July - Great Falls, MT
  • Average wind speed in July: 7.9mph

The windiest month (with the highest average wind speed) is November (11.4mph).
The calmest month (with the lowest average wind speed) is August (7.7mph).

Average humidity in July
Great Falls, MT

Average humidity in July - Great Falls, MT
  • Average humidity in July: 43%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (40%).

Average rainfall in July
Great Falls, MT

Average rainfall in July - Great Falls, MT
  • Average rainfall in July: 0.2"

The wettest month (with the highest rainfall) is June (0.87").
The driest month (with the least rainfall) is December (0.16").

Average rainfall days in July
Great Falls, MT

Average rainfall days in July - Great Falls, MT
  • Average rainfall days in July: 4.1 days

The month with the highest number of rainy days is April (9.9 days).
The month with the least rainy days is December (2.7 days).

Average snowfall in July
Great Falls, MT

Average snowfall in July - Great Falls, MT
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July and August (0").

Average snowfall days in July
Great Falls, MT

Average snowfall days in July - Great Falls, MT
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in July /
Average sunshine in July
Great Falls, MT

Average daylight in July / Average sunshine in July - Great Falls, MT
  • Average daylight in July: 15h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in July: 12h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).

Average sunshine days in July
Great Falls, MT

Average sunshine days in July - Great Falls, MT
  • Average sunshine days in July: 26.1 days

The month with the most sunshine days is July (26.1 days).
The months with the least sunshine days are February and April (16.2 days).

Average UV index in July
Great Falls, MT

Average UV index in July - Great Falls, 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
Great Falls, MT

Average cloud cover in July - Great Falls, MT
  • Average cloud cover in July: 13

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 13).

Average visibility in July
Great Falls, MT

Average visibility in July - Great Falls, 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).

Great Falls, Montana, USA

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