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 commencement of August notes an average high-temperature of a still moderately hot 80.1°F (26.7°C), exhibiting little difference from the previous month. In the month of August, Watertown's average low-temperature falls to a moderate 59°F (15°C).Humidity
In Watertown, the average relative humidity in August is 69%.Rainfall
In August, in Watertown, the rain falls for 12.4 days. Throughout August, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 112.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day in Watertown is 14h and 1min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:54 pm. On the last day of August, in Watertown, South Dakota, sunrise is at 6:50 am and sunset at 8:06 pm CDT.
Sunshine
In Watertown, the average sunshine in August is 10.3h.UV index
In Watertown, South Dakota, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In August, the maximum UV index of 5 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature in Watertown?
What is the average humidity in August in Watertown?
How much does it rain in Watertown in August?
When it does not snow in Watertown?
What is the average length of the day in August in Watertown?
When is the sunrise / sunset in August in Watertown?
How long on average sun shines in August in Watertown?
What is the UV index reading in August in Watertown?
Average temperature in August
Watertown, SD
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in August: 59°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in August
Watertown, SD
- Average pressure in August: 29.92"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Watertown, SD
- Average wind speed in August: 8.6mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in August
Watertown, SD
- Average humidity in August: 69%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in August
Watertown, SD
- Average rainfall in August: 1.81"
The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in August
Watertown, SD
- Average rainfall days in August: 12.4 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in August
Watertown, SD
- Average snowfall in August: 0"
The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Watertown, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Watertown, 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 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Watertown, SD
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in August
Watertown, 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 December (UV index 1).
Average cloud cover in August
Watertown, SD
- Average cloud cover in August: 27
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Watertown, 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).
Watertown, South Dakota, USA
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