July weather forecastSavanna, IL
July
Weather in July
July, like June, in Savanna, Illinois, is another warm summer month, with an average temperature fluctuating between 63.5°F (17.5°C) and 80.1°F (26.7°C).Temperature
July is the warmest month of the year, registering average temperatures as high as 80.1°F (26.7°C) and as low as 63.5°F (17.5°C).Humidity
In July, the average relative humidity is 84%.Rainfall
In Savanna, in July, during 17.8 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Savanna, during the entire year, the rain falls for 149.3 days and collects up to 29.76" (756mm) of precipitation.Snowfall
June through September are months without snowfall in Savanna.Daylight
In July, the average length of the day is 14h and 53min.On the first day of July, sunrise is at 5:28 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:20 pm CDT.
Sunshine
The month with the most sunshine in Savanna, Illinois, is July, with an average of 9.8h of sunshine.UV index
With an average maximum UV index of 6, July is the month with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In July, 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. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Savanna, IL
- Average high temperature in July: 80.1°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in July: 63.5°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 (13.5°F).
Average pressure in July
Savanna, IL
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in July
Savanna, IL
- Average wind speed in July: 6.6mph
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 July
Savanna, IL
- Average humidity in July: 84%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in July
Savanna, IL
- Average rainfall in July: 3.23"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in July
Savanna, IL
- Average rainfall days in July: 17.8 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in July
Savanna, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Savanna, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Savanna, IL
- Average daylight in July: 14h and 54min
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 42min).
Average sunshine days in July
Savanna, IL
- Average sunshine days in July: 9.8 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in July
Savanna, IL
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Savanna, IL
- Average cloud cover in July: 35
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in July
Savanna, IL
- Average visibility in July: 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).
