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 transition into August is marked with an average high-temperature of a still warm 78.1°F (25.6°C), showing an insignificant shift from July's 78.8°F (26°C). Contrasting the daytime warmth, Lewistown's August nights cool down to an average of 54.5°F (12.5°C).Humidity
August is the least humid month in Lewistown, with an average relative humidity of 47%.Rainfall
In Lewistown, in August, during 10.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Lewistown, during the entire year, the rain falls for 126.2 days and collects up to 17.83" (453mm) of precipitation.Snowfall
In Lewistown, snow does not fall in July and August.Daylight
In August, the average length of the day in Lewistown is 14h and 10min.On the first day of August in Lewistown, sunrise is at 5:58 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:58 pm MDT.
Sunshine
In Lewistown, Montana, the average sunshine in August is 11.4h.UV index
In Lewistown, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. To guard against the harmful effects of the Sun, minimize exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What are August temperatures in Lewistown?
What is the least humid month in Lewistown?
What is the average humidity in August in Lewistown?
How many days does it rain in August in Lewistown?
When it does not snow in Lewistown?
Does it snow in Lewistown in August?
What is the average length of the day in August in Lewistown?
What time are sunrise and sunset in August in Lewistown?
How many hours of sunshine does Lewistown have in August?
How high is the UV index in August in Lewistown?
Average temperature in August
Lewistown, MT
- Average high temperature in August: 78.1°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The months with the lowest average high temperature are February and December (29.1°F).
- Average low temperature in August: 54.5°F
The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).
Average pressure in August
Lewistown, MT
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Lewistown, MT
- Average wind speed in August: 7.4mph
The windiest months (with the highest average wind speed) are January, April and October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in August
Lewistown, MT
- Average humidity in August: 47%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (47%).
Average rainfall in August
Lewistown, MT
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in August
Lewistown, MT
- Average rainfall days in August: 10.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in August
Lewistown, MT
- Average snowfall in August: 0"
The month with the highest snowfall is April (9.13").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Lewistown, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (15.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Lewistown, 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 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in August
Lewistown, MT
- Average sunshine days in August: 17.2 days
The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (8.3 days).
Average UV index in August
Lewistown, MT
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in August
Lewistown, MT
- Average cloud cover in August: 17
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in August
Lewistown, 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).
Lewistown, Montana, USA
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