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 advent of August signifies a minor shift to an average high-temperature of a still warm 78.6°F (25.9°C), aligning closely with July. Marked by a significant temperature drop from daytime highs, the average nighttime temperature lowers to a chilly 48.9°F (9.4°C) throughout August.Humidity
With an average relative humidity of 51%, August is the least humid month.Rainfall
July and August are months with the least rain when the rain falls for 7 days and typically aggregates up to 0.55" (14mm) of rain.Snowfall
In Big Arm, snow does not fall in June through August.Daylight
The average length of the day in August is 14h and 13min.On the first day of the month, sunrise is at 6:15 am and sunset at 9:11 pm. On the last day of August, sunrise is at 6:55 am and sunset at 8:19 pm MDT.
Sunshine
In Big Arm, 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 health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 4 in August translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. When the Sun is at its strongest around midday, find shade and limit exposure. 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
What is the usual temperature for Big Arm in August?
What is the least humid month?
What is the average humidity in August?
What is the driest month?
How much does it rain in August?
When it does not snow?
Does it snow in August?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Big Arm have in August?
What is the UV index reading in August?
Average temperature in August
Big Arm, MT
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in August: 48.9°F
The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in August
Big Arm, MT
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Big Arm, MT
- Average wind speed in August: 3.7mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in August
Big Arm, MT
- Average humidity in August: 51%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (51%).
Average rainfall in August
Big Arm, MT
- Average rainfall in August: 0.55"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").
Average rainfall days in August
Big Arm, MT
- Average rainfall days in August: 7 days
The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).
Average snowfall in August
Big Arm, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Big Arm, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (19.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Big Arm, MT
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 11h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in August
Big Arm, MT
- Average sunshine days in August: 19.9 days
The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).
Average UV index in August
Big Arm, 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, February, November and December (UV index 1).
Average cloud cover in August
Big Arm, MT
- Average cloud cover in August: 14
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in August
Big Arm, 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).
Big Arm, Montana, USA
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