August weather forecastSaint Marie, MT
August
Weather in August
August, the last month of the summer in Saint Marie, is another warm month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 81.7°F (27.6°C).Temperature
The commencement of August records an average high-temperature of a still moderately hot 81.7°F (27.6°C), barely varying from July's 83.1°F (28.4°C). The temperature dips to an average of 62.4°F (16.9°C) during August nights.Heat index
For most parts of August, the heat index is computed to be 80.6°F (27°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.Realize that the values for the heat index are set for shaded places and light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The least humid month is August, with an average relative humidity of 42%.Rainfall
In August, the rain falls for 10 days. Throughout August, 1.18" (30mm) of precipitation is accumulated. In Saint Marie, during the entire year, the rain falls for 90.8 days and collects up to 11.1" (282mm) of precipitation.Snowfall
In Saint Marie, snow does not fall in June through September.Daylight
The average length of the day in August is 14h and 16min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:42 pm. On the last day of August, in Saint Marie, sunrise is at 6:23 am and sunset at 7:49 pm MDT.
Sunshine
In August, the average sunshine is 11.6h.UV index
The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during August translates into these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint Marie, MT
- Average high temperature in August: 81.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (23.7°F).
- Average low temperature in August: 62.4°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (10.2°F).
Average pressure in August
Saint Marie, MT
- Average pressure in August: 29.88"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in August
Saint Marie, MT
- Average wind speed in August: 9.9mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).
Average humidity in August
Saint Marie, MT
- Average humidity in August: 42%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).
Average rainfall in August
Saint Marie, MT
- Average rainfall in August: 1.18"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days in August
Saint Marie, MT
- Average rainfall days in August: 10 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in August
Saint Marie, MT
- Average snowfall in August: 0"
The month with the highest snowfall is December (2.6").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Saint Marie, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Saint Marie, MT
- Average daylight in August: 14h and 18min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in August: 11h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Saint Marie, MT
- Average sunshine days in August: 18.3 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in August
Saint Marie, MT
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Saint Marie, MT
- Average cloud cover in August: 17
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in August
Saint Marie, MT
- Average visibility in August: 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).
