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
The onset of August marks an average high-temperature of a still warm 77.9°F (25.5°C), hardly differing from July's 79.2°F (26.2°C). Greenough anticipates a considerable daily temperature fluctuation in August, with low temperatures averaging a frosty 45.5°F (7.5°C).Humidity
July and August, with an average relative humidity of 51%, are the least humid months.Rainfall
In Greenough, in August, it is raining for 3.2 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 46.4 rainfall days, and 2.4" (61mm) of precipitation is accumulated.Snowfall
July and August are months without snowfall.Daylight
The average length of the day in August is 14h and 9min.On the first day of the month, sunrise is at 6:14 am and sunset at 9:05 pm. On the last day of August, sunrise is at 6:53 am and sunset at 8:14 pm MDT.
Sunshine
The average sunshine in August is 11.7h.UV index
In Greenough, 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 the ordinary person.Note: The maximum daily UV index of 4 in August interprets into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August?
What is the least humid month?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
Does it snow in August?
How many hours of daylight does Greenough have in August?
When are sunrise and sunset in August in Greenough?
How long on average sun shines in August in Greenough?
What is the UV index intensity in August?
Average temperature in August
Greenough, MT
- Average high temperature in August: 77.9°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.1°F).
- Average low temperature in August: 45.5°F
The months with the highest average low temperature are July and August (45.5°F).
The coldest month (with the lowest average low temperature) is December (12.2°F).
Average pressure in August
Greenough, MT
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Greenough, 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
Greenough, MT
- Average humidity in August: 51%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in August
Greenough, MT
- Average rainfall in August: 0.16"
The wettest month (with the highest rainfall) is June (0.43").
The driest month (with the least rainfall) is December (0.08").
Average rainfall days in August
Greenough, MT
- Average rainfall days in August: 3.2 days
The month with the highest number of rainy days is April (6.8 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in August
Greenough, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Greenough, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Greenough, 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: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in August
Greenough, MT
- Average sunshine days in August: 26.7 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is April (21.9 days).
Average UV index in August
Greenough, MT
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Greenough, MT
- Average cloud cover in August: 13
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in August
Greenough, MT
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Greenough, Montana, USA
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