August weather forecastHysham, MT
August
Weather in August
August, the last month of the summer in Hysham, is another warm month, with an average temperature fluctuating between 63.1°F (17.3°C) and 84.6°F (29.2°C).Temperature
Hysham's entry into August measures an average high-temperature of a moderately hot 84.6°F (29.2°C), closely parallel to the preceding month. In August, Hysham experiences a temperature dip to an average of 63.1°F (17.3°C) at night.Humidity
The least humid month in Hysham is August, with an average relative humidity of 38%.Rainfall
In Hysham, in August, it is raining for 10.4 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 99.5 rainfall days, and 11.06" (281mm) of precipitation is accumulated.Snowfall
In Hysham, snow does not fall in June through August.Daylight
The average length of the day in August is 14h and 7min.On the first day of August, sunrise is at 5:51 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:48 pm MDT.
Sunshine
In Hysham, the average sunshine in August is 11.7h.UV index
The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 6 in August transforms into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Hysham, MT
- Average high temperature in August: 84.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The months with the lowest average high temperature are January and December (30.9°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in August
Hysham, MT
- Average pressure in August: 29.89"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in August
Hysham, MT
- Average wind speed in August: 8.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).
Average humidity in August
Hysham, MT
- Average humidity in August: 38%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall in August
Hysham, MT
- Average rainfall in August: 0.98"
The wettest month (with the highest rainfall) is May (1.81").
The driest months (with the least rainfall) are January, November and December (0.47").
Average rainfall days in August
Hysham, MT
- Average rainfall days in August: 10.4 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in August
Hysham, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Hysham, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Hysham, MT
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 11h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 18min).
Average sunshine days in August
Hysham, MT
- Average sunshine days in August: 16.5 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is April (14.2 days).
Average UV index in August
Hysham, MT
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Hysham, MT
- Average cloud cover in August: 15
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in August
Hysham, 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).





