Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The commencement of October indicates a shift in the average high-temperature, receding from September's warm 73.4°F (23°C) to a moderate 59.7°F (15.4°C). Savanna, during October, witnesses an average low-temperature of 43.5°F (6.4°C).Humidity
The least humid month in Savanna is October, with an average relative humidity of 74%.Rainfall
In Savanna, in October, it is raining for 12.6 days, with typically 2.68" (68mm) of accumulated precipitation. In Savanna, Illinois, during the entire year, the rain falls for 149.3 days and collects up to 29.76" (756mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows in Savanna. Throughout October, in the average 0.4 snowfall days, it receives 0.67" (17mm) of snow. Throughout the year, in Savanna, there are 41.2 snowfall days, and 16.73" (425mm) of snow is accumulated.Daylight
In October, the average length of the day is 11h and 4min.On the first day of the month, sunrise is at 6:58 am and sunset at 6:41 pm. On the last day of October, sunrise is at 7:33 am and sunset at 5:55 pm CDT.
Sunshine
In Savanna, the average sunshine in October is 5.3h.UV index
The average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 2 during October, leads to the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What is the average October temperature in Savanna?
What is the least humid month in Savanna?
What is the average humidity in October in Savanna?
How many days does it rain in October in Savanna?
When does it start to snow in Savanna?
What is the average length of the day in October in Savanna?
What time are sunrise and sunset in October in Savanna?
How long on average sun shines in October in Savanna?
What is the UV index intensity in October in Savanna?
Average temperature in October
Savanna, IL
- Average high temperature in October: 59.7°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 October: 43.5°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 October
Savanna, IL
- Average pressure in October: 30"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 October
Savanna, IL
- Average wind speed in October: 9.1mph
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 October
Savanna, IL
- Average humidity in October: 74%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in October
Savanna, IL
- Average rainfall in October: 2.68"
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 October
Savanna, IL
- Average rainfall days in October: 12.6 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 October
Savanna, IL
- Average snowfall in October: 0.67"
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 October
Savanna, IL
- Average snowfall days in October: 0.4 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 October /
Average sunshine in October
Savanna, IL
- Average daylight in October: 11h and 1min
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 October: 5h and 2min
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 October
Savanna, IL
- Average sunshine days in October: 15.8 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 October
Savanna, IL
- Average UV index in October: 2
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 October
Savanna, IL
- Average cloud cover in October: 41
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 October
Savanna, IL
- Average visibility in October: 6mi
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).
Savanna, Illinois, USA
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