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
Upon the onset of August, Sandwich witnesses an average high-temperature of a still warm 79.3°F (26.3°C), showing a close resemblance to the prior month. During the month of August, the nighttime temperature falls to an average of 61.7°F (16.5°C).Humidity
July and August, with an average relative humidity of 84%, are the most humid months.Rainfall
In Sandwich, in August, during 18.3 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Sandwich, during the entire year, the rain falls for 168.3 days and collects up to 35.47" (901mm) of precipitation.Snowfall
May through September are months without snowfall in Sandwich.Daylight
In August, the average length of the day is 13h and 48min.On the first day of the month, sunrise is at 5:49 am and sunset at 8:11 pm. On the last day of August, sunrise is at 6:20 am and sunset at 7:28 pm CDT.
Sunshine
June and August, with an average of 9.6h of sunshine, are months with the most sunshine.UV index
In Sandwich, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during August translates into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures?
What is the most humid month?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Sandwich have in August?
When is the sunrise / sunset in August?
What is the month with the most sunshine?
How long on average sun shines in August?
What is the UV index intensity in August?
Average temperature in August
Sandwich, IL
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in August: 61.7°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in August
Sandwich, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Sandwich, IL
- Average wind speed in August: 6mph
The windiest months (with the highest average wind speed) are January and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Sandwich, IL
- Average humidity in August: 84%
The months with the highest relative humidity are July and August (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Sandwich, IL
- Average rainfall in August: 3.11"
The wettest month (with the highest rainfall) is May (4.88").
The driest month (with the least rainfall) is November (1.73").
Average rainfall days in August
Sandwich, IL
- Average rainfall days in August: 18.3 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is February (6 days).
Average snowfall in August
Sandwich, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Sandwich, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Sandwich, IL
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 9h and 4min
The months with the most sunshine are June and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Sandwich, IL
- Average sunshine days in August: 9.1 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in August
Sandwich, IL
- 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
Sandwich, IL
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in August
Sandwich, IL
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Sandwich, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location