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 observes an average high-temperature of a still hot 87.4°F (30.8°C), marking an insignificant difference from July's 89.4°F (31.9°C). The significant decline in Montreal's temperature, from day to night, averages of 65.7°F (18.7°C) in August.Heat index
The average heat index in August is estimated at a very hot 100.4°F (38°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Consider that heat index readings are for situations in the shade and light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The months with the lowest humidity in Montreal are July through November, with an average relative humidity of 73%.Rainfall
In Montreal, during August, the rain falls for 12.4 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Montreal, during the entire year, the rain falls for 131.8 days and collects up to 22.09" (561mm) of precipitation.Snowfall
In Montreal, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 35min.On the first day of August in Montreal, sunrise is at 6:14 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:40 pm CDT.
Sunshine
In Montreal, the average sunshine in August is 10.3h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Montreal in August?
What is the least humid month in Montreal?
What is the average humidity in August in Montreal?
How much does it rain in Montreal in August?
When it does not snow in Montreal?
How many hours of daylight does Montreal have in August?
When are sunrise and sunset in August in Montreal?
How long on average sun shines in August in Montreal?
What is the month with the highest UV index in Montreal?
What is the UV index reading in August in Montreal?
Average temperature in August
Montreal, MO
- Average high temperature in August: 87.4°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in August
Montreal, MO
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Montreal, MO
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in August
Montreal, MO
- Average humidity in August: 73%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are July, August, September, October and November (73%).
Average rainfall in August
Montreal, MO
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in August
Montreal, MO
- Average rainfall days in August: 12.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in August
Montreal, MO
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Montreal, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Montreal, MO
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in August
Montreal, MO
- Average sunshine days in August: 14.9 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is May (13.4 days).
Average UV index in August
Montreal, MO
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Montreal, MO
- Average cloud cover in August: 29
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in August
Montreal, MO
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Montreal, Missouri, USA
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