August weather forecastNiagara, WI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Niagara, Wisconsin, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 75.7°F (24.3°C).Temperature
The high-temperature average in August for Niagara is a still warm 75.7°F (24.3°C), staying closely aligned with July's conditions. Niagara's average low-temperature in the month of August is recorded at a refreshing 55.9°F (13.3°C).Humidity
In Niagara, Wisconsin, the average relative humidity in August is 79%.Rainfall
In August, in Niagara, the rain falls for 14 days. Throughout August, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 137.4 rainfall days, and 22.83" (580mm) of precipitation is accumulated.Snowfall
In Niagara, snow does not fall in June through September.Daylight
In August, the average length of the day is 14h and 4min.On the first day of the month, sunrise is at 5:36 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:12 am and sunset at 7:31 pm CDT.
Sunshine
In August, the average sunshine is 9.5h.UV index
The months with the highest UV index in Niagara, Wisconsin, are June through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Undertake protective steps - Preventing sun damage is advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Niagara, WI
- Average high temperature in August: 75.7°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (21°F).
- Average low temperature in August: 55.9°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure in August
Niagara, WI
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Niagara, WI
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Niagara, WI
- Average humidity in August: 79%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (72%).
Average rainfall in August
Niagara, WI
- Average rainfall in August: 1.89"
The wettest month (with the highest rainfall) is June (2.6").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in August
Niagara, WI
- Average rainfall days in August: 14 days
The months with the highest number of rainy days are May, June and July (15.3 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in August
Niagara, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (9.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Niagara, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Niagara, WI
- 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: 9h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in August
Niagara, WI
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in August
Niagara, WI
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in August
Niagara, WI
- Average cloud cover in August: 39
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in August
Niagara, WI
- Average visibility in August: 5mi
The months with the highest visibility are May, June, October and November (6mi).
The month with the lowest visibility is February (4mi).
