Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August begins with an average high-temperature of a still warm 77°F (25°C), reflecting close similarity to the preceding month. Helmville, amidst the high August temperatures, experiences a substantial shift to an average nighttime low of 46.6°F (8.1°C).Humidity
July and August, with an average relative humidity of 49%, are the least humid months.Rainfall
August through October are months with the least rain when the rain falls for 7 days and typically aggregates up to 0.59" (15mm) of rain.Snowfall
In Helmville, snow does not fall in July and August.Daylight
In August, the average length of the day is 14h and 9min.On the first day of the month, sunrise is at 6:12 am and sunset at 9:03 pm. On the last day of August, in Helmville, sunrise is at 6:51 am and sunset at 8:12 pm MDT.
Sunshine
The average sunshine in August is 11.7h.UV index
The average daily maximum UV index in August in Helmville, Montana, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in August leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures in Helmville?
What is the least humid month in Helmville?
What is the average humidity in August in Helmville?
What is the driest month in Helmville?
How much does it rain in Helmville in August?
When it does not snow in Helmville?
Does it snow in Helmville in August?
How many hours of daylight does Helmville have in August?
When are sunrise and sunset in August in Helmville?
How many hours of sunshine does Helmville have in August?
What is the UV index reading in August in Helmville?
Average temperature in August
Helmville, MT
- Average high temperature in August: 77°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is December (26.6°F).
- Average low temperature in August: 46.6°F
The month with the highest average low temperature is August (46.6°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure in August
Helmville, MT
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Helmville, MT
- Average wind speed in August: 4.7mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in August
Helmville, MT
- Average humidity in August: 49%
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are July and August (49%).
Average rainfall in August
Helmville, MT
- Average rainfall in August: 0.59"
The wettest month (with the highest rainfall) is June (1.81").
The driest months (with the least rainfall) are August, September and October (0.59").
Average rainfall days in August
Helmville, MT
- Average rainfall days in August: 7 days
The month with the highest number of rainy days is June (13.3 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in August
Helmville, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (9.76").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Helmville, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (18.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Helmville, MT
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 11h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in August
Helmville, MT
- Average sunshine days in August: 21.4 days
The month with the most sunshine days is September (21.9 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in August
Helmville, MT
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Helmville, MT
- Average cloud cover in August: 13
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in August
Helmville, MT
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Helmville, Montana, USA
Weather forecast for your location
2. Allow the app to use your location