August weather forecastSeymour, IL
August
Weather in August
The last month of the summer, August, is another warm month in Seymour, Illinois, with an average temperature varying between 63.1°F (17.3°C) and 80.2°F (26.8°C).Temperature
Seymour experiences an average high-temperature of a still moderately hot 80.2°F (26.8°C) in August, marking an insignificant shift from 81.1°F (27.3°C) in July. The temperature lowers to an average of 63.1°F (17.3°C) during August nights.Humidity
In Seymour, the average relative humidity in August is 83%.Rainfall
In August, the rain falls for 14.1 days. Throughout August, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 152.9 rainfall days, and 29.72" (755mm) of precipitation is accumulated.Snowfall
In Seymour, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 43min.On the first day of the month, sunrise is at 5:52 am and sunset at 8:07 pm. On the last day of August, in Seymour, sunrise is at 6:21 am and sunset at 7:26 pm CDT.
Sunshine
In Seymour, the average sunshine in August is 9.9h.UV index
The months with the highest UV index in Seymour are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In August, a regular UV index of 6 translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Seymour, IL
- Average high temperature in August: 80.2°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 (31.5°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in August
Seymour, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Seymour, IL
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in August
Seymour, IL
- Average humidity in August: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Seymour, IL
- Average rainfall in August: 2.2"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is December (1.65").
Average rainfall days in August
Seymour, IL
- Average rainfall days in August: 14.1 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in August
Seymour, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Seymour, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Seymour, IL
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Seymour, IL
- Average sunshine days in August: 14.8 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in August
Seymour, IL
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Seymour, IL
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in August
Seymour, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
