July weather forecast
Roundup, MT

Weather in July

July, the same as June, is another warm summer month in Roundup, Montana, with an average temperature varying between 62.4°F (16.9°C) and 84.7°F (29.3°C).

Temperature

With an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 62.4°F (16.9°C), July is the warmest month.

Heat index

In July, the average heat index is evaluated at 84.2°F (29°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, pregnancy, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in July in Roundup is 41%.

Rainfall

In Roundup, in July, during 11.9 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Roundup, during the entire year, the rain falls for 114.3 days and collects up to 12.13" (308mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in July is 15h and 23min.
On the first day of July, sunrise is at 5:25 am and sunset at 9:10 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:46 pm MDT.

Sunshine

July has the most sunshine of the year in Roundup, Montana, with an average of 11.8h of sunshine.

UV index

The month with the highest UV index is July, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Roundup?

The warmest month is July, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 62.4°F (16.9°C).

What is the temperature in July in Roundup?

In Roundup, in July, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 62.4°F (16.9°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in July is evaluated at 84.2°F (29°C).

What is the average humidity in July in Roundup?

In Roundup, Montana, the average relative humidity in July is 41%.

How many days does it rain in July in Roundup?

In Roundup, during July, the rain falls for 11.9 days and regularly aggregates up to 0.83" (21mm) of precipitation.

When it does not snow in Roundup?

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

How many hours of daylight does Roundup have in July?

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

When is the sunrise / sunset in July in Roundup?

In July, on the first day of the month, sunrise is at 5:25 am and sunset at 9:10 pm. On the last day of the month, in Roundup, sunrise is at 5:54 am and sunset at 8:46 pm MDT.

What month has the most sunshine in Roundup?

July has the most sunshine of the year in Roundup, Montana, with an average of 11.8h of sunshine.

How long on average sun shines in July in Roundup?

In July, the average sunshine duration in Roundup, Montana, is 11.8h.

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

With an average maximum UV index of 7, July is the month with the highest UV index.

What is the UV index intensity in July in Roundup?

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

Average temperature in July - Roundup, MT
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (31.1°F).

  • Average low temperature in July: 62.4°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).

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Average pressure in July
Roundup, MT

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in July
Roundup, MT

Average wind speed in July - Roundup, MT
  • Average wind speed in July: 8.5mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).

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Average humidity in July
Roundup, MT

Average humidity in July - Roundup, MT
  • Average humidity in July: 41%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in July
Roundup, MT

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

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in July
Roundup, MT

Average rainfall days in July - Roundup, MT
  • Average rainfall days in July: 11.9 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in July
Roundup, MT

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

The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in July
Roundup, MT

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

The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 45min).
The month with the shortest days is December (Average daylight: 8h and 40min).

  • Average sunshine in July: 11h and 48min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).

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Average sunshine days in July
Roundup, MT

Average sunshine days in July - Roundup, MT
  • Average sunshine days in July: 15.6 days

The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (12.8 days).

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Average UV index in July
Roundup, MT

Average UV index in July - Roundup, MT
  • Average UV index in July: 7

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in July
Roundup, MT

Average cloud cover in July - Roundup, MT
  • Average cloud cover in July: 16

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 16).

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Average visibility in July
Roundup, MT

Average visibility in July - Roundup, 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).

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