August weather forecastHillsdale, IL
August
Weather in August
The last month of the summer, August, is another warm month in Hillsdale, Illinois, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 79.9°F (26.6°C).Temperature
As Hillsdale transitions from July to August, the average high-temperatures adjust to a still warm 79.9°F (26.6°C), nearly the same as the previous 80.2°F (26.8°C). An average low-temperature of 61.9°F (16.6°C) is common during the nights of August.Humidity
In Hillsdale, the average relative humidity in August is 82%.Rainfall
In Hillsdale, during August, the rain falls for 13.2 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Hillsdale, during the entire year, the rain falls for 145.7 days and collects up to 27.91" (709mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Hillsdale, the average length of the day in August is 13h and 48min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:35 pm CDT.
Sunshine
In August, the average sunshine is 9.8h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during August leads to these instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Hillsdale, IL
- Average high temperature in August: 79.9°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in August: 61.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in August
Hillsdale, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Hillsdale, IL
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in August
Hillsdale, IL
- Average humidity in August: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Hillsdale, IL
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in August
Hillsdale, IL
- Average rainfall days in August: 13.2 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in August
Hillsdale, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Hillsdale, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.3 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
Hillsdale, IL
- Average daylight in August: 13h and 48min
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 48min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Hillsdale, IL
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in August
Hillsdale, IL
- Average UV index in August: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Hillsdale, IL
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in August
Hillsdale, IL
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
