August weather forecastOlney, MT
August
Weather in August
August, the last month of the summer in Olney, is another warm month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 45°F (7.2°C).Temperature
Olney's weather, upon August's arrival, documents an average high-temperature of a still warm 77.5°F (25.3°C), nearly identical to the prior month. Olney marks a considerable descent from the daytime apex, as the average temperature dips to a frosty 45°F (7.2°C) at night throughout August.Humidity
The months with the lowest humidity in Olney are July and August, with an average relative humidity of 56%.Rainfall
August is the month with the least rainfall. Rain falls for 6.4 days and accumulates 0.51" (13mm) of precipitation.Snowfall
June through August are months without snowfall in Olney.Daylight
In Olney, Montana, the average length of the day in August is 14h and 17min.On the first day of August, sunrise is at 6:13 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 8:21 pm MDT.
Sunshine
The months with the most sunshine are July and August, with an average of 11.7h of sunshine.UV index
In Olney, Montana, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during August translates into the following directions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Olney, MT
- Average high temperature in August: 77.5°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 (25.5°F).
- Average low temperature in August: 45°F
The month with the highest average low temperature is August (45°F).
The coldest month (with the lowest average low temperature) is February (12.7°F).
Average pressure in August
Olney, MT
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Olney, MT
- Average wind speed in August: 3.7mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in August
Olney, MT
- Average humidity in August: 56%
The month with the highest relative humidity is January (94%).
The months with the lowest relative humidity are July and August (56%).
Average rainfall in August
Olney, MT
- Average rainfall in August: 0.51"
The wettest month (with the highest rainfall) is March (1.93").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in August
Olney, MT
- Average rainfall days in August: 6.4 days
The month with the highest number of rainy days is April (16.6 days).
The month with the least rainy days is August (6.4 days).
Average snowfall in August
Olney, MT
- Average snowfall in August: 0"
The month with the highest snowfall is January (11.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Olney, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (21.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Olney, MT
- Average daylight in August: 14h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in August: 11h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Olney, MT
- Average sunshine days in August: 22.3 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (6.3 days).
Average UV index in August
Olney, MT
- Average UV index in August: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Olney, MT
- Average cloud cover in August: 15
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in August
Olney, 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 and February (3mi).
