August weather forecastIrma, WI
August
Weather in August
August, the last month of the summer in Irma, is another warm month, with an average temperature fluctuating between 55.8°F (13.2°C) and 75.7°F (24.3°C).Temperature
Irma observes a minor difference in average high-temperatures between July's 78.1°F (25.6°C) and August's 75.7°F (24.3°C). Irma records an average nighttime low-temperature of 55.8°F (13.2°C) throughout August.Humidity
The average relative humidity in August in Irma is 78%.Rainfall
In August, in Irma, the rain falls for 15 days. Throughout August, 1.97" (50mm) of precipitation is accumulated. In Irma, during the entire year, the rain falls for 132.2 days and collects up to 23.15" (588mm) of precipitation.Snowfall
June through September are months without snowfall in Irma.Daylight
In August, the average length of the day is 14h and 2min.On the first day of the month, sunrise is at 5:43 am and sunset at 8:25 pm. On the last day of August, sunrise is at 6:20 am and sunset at 7:37 pm CDT.
Sunshine
In Irma, the average sunshine in August is 9.1h.UV index
The months with the highest UV index in Irma are June through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 5 during August leads to these advisories:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Irma, WI
- Average high temperature in August: 75.7°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in August: 55.8°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in August
Irma, WI
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Irma, WI
- Average wind speed in August: 6.7mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in August
Irma, WI
- Average humidity in August: 78%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (73%).
Average rainfall in August
Irma, WI
- Average rainfall in August: 1.97"
The wettest month (with the highest rainfall) is June (2.95").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in August
Irma, WI
- Average rainfall days in August: 15 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in August
Irma, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (8.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Irma, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Irma, WI
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 9h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in August
Irma, WI
- Average sunshine days in August: 13.1 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (8 days).
Average UV index in August
Irma, 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
Irma, WI
- Average cloud cover in August: 41
The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in August
Irma, WI
- Average visibility in August: 5mi
The months with the highest visibility are May and October (6mi).
The months with the lowest visibility are January and February (4mi).
