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 high-temperature average in August for Sidney is a still moderately hot 82.8°F (28.2°C), staying closely aligned with July's conditions. Sidney experiences a mean low-temperature of 62.2°F (16.8°C) during August.Heat index
The heat index value for August is calculated to be 82.4°F (28°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
With an average relative humidity of 45%, August is the least humid month.Rainfall
In Sidney, during August, the rain falls for 8.8 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 85.7 rainfall days, and 8.5" (216mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 14h and 13min.On the first day of the month, sunrise is at 5:34 am and sunset at 8:30 pm. On the last day of August, sunrise is at 6:14 am and sunset at 7:38 pm MDT.
Sunshine
The average sunshine in August is 11.5h.UV index
The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: In August, the UV index of 6 transforms into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August?
What is the least humid month?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow in Sidney?
What is the average length of the day in August?
When is the sunrise / sunset in August?
How many hours of sunshine does Sidney have in August?
What is the UV index reading in August?
Average temperature in August
Sidney, MT
- Average high temperature in August: 82.8°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in August
Sidney, MT
- Average pressure in August: 29.89"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in August
Sidney, MT
- Average wind speed in August: 9.3mph
The windiest months (with the highest average wind speed) are April and October (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).
Average humidity in August
Sidney, MT
- Average humidity in August: 45%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (45%).
Average rainfall in August
Sidney, MT
- Average rainfall in August: 0.87"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in August
Sidney, MT
- Average rainfall days in August: 8.8 days
The month with the highest number of rainy days is June (11.4 days).
The months with the least rainy days are January and February (3.2 days).
Average snowfall in August
Sidney, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Sidney, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Sidney, 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 3min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in August
Sidney, MT
- Average sunshine days in August: 18.5 days
The month with the most sunshine days is September (20.7 days).
The month with the least sunshine days is April (15.8 days).
Average UV index in August
Sidney, MT
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in August
Sidney, MT
- Average cloud cover in August: 19
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 18).
Average visibility in August
Sidney, 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).
Sidney, Montana, USA
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