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 transition into August is marked with an average high-temperature of a still moderately hot 76.1°F (24.5°C), showing an insignificant shift from July's 78.1°F (25.6°C). Lewis records an average temperature drop to a moderate 57.6°F (14.2°C) in August.Humidity
In August, the average relative humidity is 80%.Rainfall
In Lewis, in August, during 14 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in Lewis, there are 122.5 rainfall days, and 20.87" (530mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 14h and 4min.On the first day of the month, sunrise is at 5:53 am and sunset at 8:37 pm. On the last day of August, in Lewis, sunrise is at 6:30 am and sunset at 7:48 pm CDT.
Sunshine
In Lewis, the average sunshine in August is 9.3h.UV index
In Lewis, Wisconsin, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, the UV index of 5 transforms into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature in Lewis?
What is the average humidity in August in Lewis?
How much does it rain in Lewis in August?
When it does not snow in Lewis?
How many hours of daylight does Lewis have in August?
What time are sunrise and sunset in August in Lewis?
How many hours of sunshine does Lewis have in August?
How high is the UV index in August in Lewis?
Average temperature in August
Lewis, WI
- Average high temperature in August: 76.1°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 (17.8°F).
- Average low temperature in August: 57.6°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in August
Lewis, WI
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Lewis, WI
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in August
Lewis, WI
- Average humidity in August: 80%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in August
Lewis, WI
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in August
Lewis, WI
- Average rainfall days in August: 14 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in August
Lewis, WI
- Average snowfall in August: 0"
The month with the highest snowfall is December (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Lewis, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Lewis, WI
- Average daylight in August: 14h and 1min
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 48min).
- Average sunshine in August: 9h and 2min
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 36min).
Average sunshine days in August
Lewis, WI
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in August
Lewis, WI
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Lewis, WI
- Average cloud cover in August: 36
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in August
Lewis, WI
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Lewis, Wisconsin, USA
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