July weather forecastOswego, IL
July
Weather in July
July, the same as June, is a moderately hot summer month in Oswego, Illinois, with an average temperature varying between 64.2°F (17.9°C) and 81.1°F (27.3°C).Temperature
July, known for its average high temperature of 81.1°F (27.3°C) and an average low temperature of 64.2°F (17.9°C), is the warmest month.Heat index
The heat index for July is estimated at a hot 87.8°F (31°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
The months with the highest humidity are January, February, July and August, with an average relative humidity of 83%.Rainfall
In Oswego, in July, it is raining for 16.6 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 133.1 rainfall days, and 16.93" (430mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Oswego.Daylight
In July, the average length of the day in Oswego is 14h and 51min.On the first day of July, sunrise is at 5:23 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:12 pm CDT.
Sunshine
July has the most sunshine of the year in Oswego, with an average of 9.8h of sunshine.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index in Oswego, Illinois. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 in July translates into these instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Oswego, IL
- Average high temperature in July: 81.1°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 (28.4°F).
- Average low temperature in July: 64.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in July
Oswego, IL
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Oswego, IL
- Average wind speed in July: 6.2mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in July
Oswego, IL
- Average humidity in July: 83%
The months with the highest relative humidity are January, February, July and August (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in July
Oswego, IL
- Average rainfall in July: 2.17"
The wettest month (with the highest rainfall) is June (2.24").
The driest months (with the least rainfall) are November and December (0.75").
Average rainfall days in July
Oswego, IL
- Average rainfall days in July: 16.6 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in July
Oswego, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Oswego, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Oswego, IL
- Average daylight in July: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in July: 9h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in July
Oswego, IL
- Average sunshine days in July: 10.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in July
Oswego, IL
- Average UV index in July: 6
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 July
Oswego, IL
- Average cloud cover in July: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in July
Oswego, IL
- Average visibility in July: 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).
