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
August's advent notes a subtle adjustment in average high-temperature to a still moderately hot 80.1°F (26.7°C) from July. Altamont records an average low of 59.5°F (15.3°C) throughout the nights in August.Humidity
In Altamont, the average relative humidity in August is 72%.Rainfall
In Altamont, in August, it is raining for 11.9 days, with typically 1.5" (38mm) of accumulated precipitation. In Altamont, during the entire year, the rain falls for 101.9 days and collects up to 14.61" (371mm) of precipitation.Snowfall
In Altamont, snow does not fall in June through September.Daylight
The average length of the day in August is 14h and 1min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:52 pm. On the last day of August, sunrise is at 6:48 am and sunset at 8:04 pm CDT.
Sunshine
In Altamont, the average sunshine in August is 10.3h.UV index
The average daily maximum UV index in August in Altamont is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 5 during August leads to these advisories:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. 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
What is the usual temperature for Altamont in August?
What is the average humidity in August in Altamont?
How much does it rain in Altamont in August?
When it does not snow in Altamont?
What is the average length of the day in August in Altamont?
What time are sunrise and sunset in August in Altamont?
How long on average sun shines in August in Altamont?
What is the UV index intensity in August in Altamont?
Average temperature in August
Altamont, SD
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in August
Altamont, SD
- Average pressure in August: 29.93"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
Altamont, SD
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in August
Altamont, SD
- Average humidity in August: 72%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).
Average rainfall in August
Altamont, SD
- Average rainfall in August: 1.5"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in August
Altamont, SD
- Average rainfall days in August: 11.9 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in August
Altamont, SD
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Altamont, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Altamont, SD
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Altamont, SD
- Average sunshine days in August: 16.6 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in August
Altamont, SD
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in August
Altamont, SD
- Average cloud cover in August: 26
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in August
Altamont, SD
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Altamont, South Dakota, USA
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