August weather forecastJackson, MT
August
Weather in August
The last month of the summer, August, is another warm month in Jackson, Montana, with an average temperature ranging between max 74.7°F (23.7°C) and min 47.5°F (8.6°C).Temperature
As July transitions into August, Jackson records an average high-temperature of a still moderately hot 74.7°F (23.7°C), showing a gentle shift from the preceding month. From significant daily highs, Jackson's nights in August cool down to an average low-temperature of 47.5°F (8.6°C).Humidity
With an average relative humidity of 43%, August is the least humid month.Rainfall
July and August are months with the least rain in Jackson, Montana, when the rain falls for 7 days and typically aggregates up to 0.51" (13mm) of rain.Snowfall
In Jackson, Montana, snow does not fall in June through August.Daylight
In August, the average length of the day is 14h and 2min.On the first day of August, sunrise is at 6:18 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 8:12 pm MDT.
Sunshine
In Jackson, the average sunshine in August is 11.7h.UV index
The average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 4 in August, converts into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Jackson, MT
- Average high temperature in August: 74.7°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in August: 47.5°F
The month with the highest average low temperature is August (47.5°F).
The coldest months (with the lowest average low temperature) are January and December (9.5°F).
Average pressure in August
Jackson, MT
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Jackson, MT
- Average wind speed in August: 4.3mph
The windiest months (with the highest average wind speed) are March and April (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in August
Jackson, MT
- Average humidity in August: 43%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is August (43%).
Average rainfall in August
Jackson, MT
- Average rainfall in August: 0.51"
The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are July and August (0.51").
Average rainfall days in August
Jackson, MT
- Average rainfall days in August: 7 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in August
Jackson, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Jackson, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Jackson, MT
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 11h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in August
Jackson, MT
- Average sunshine days in August: 18.7 days
The month with the most sunshine days is July (19.4 days).
The month with the least sunshine days is April (7.7 days).
Average UV index in August
Jackson, MT
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in August
Jackson, MT
- Average cloud cover in August: 13
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in August
Jackson, 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, March and December (4mi).
