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
During the transition into October, Ottawa observes a decrease in the average high-temperature, falling from a warm 74.5°F (23.6°C) in September to an enjoyable 61.7°F (16.5°C). During October, the average low-temperature in Ottawa is a chilly 45.7°F (7.6°C).Humidity
With an average relative humidity of 72%, October is the least humid month.Rainfall
In Ottawa, Illinois, in October, during 13.3 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 166.3 rainfall days, and 35.35" (898mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, in Ottawa, there are 43.4 snowfall days, and 17.76" (451mm) of snow is accumulated.Daylight
In Ottawa, the average length of the day in October is 11h and 5min.On the first day of October in Ottawa, sunrise is at 6:52 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:51 pm CDT.
Sunshine
In Ottawa, the average sunshine in October is 5.8h.UV index
In Ottawa, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 during October translates into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What is the average October temperature in Ottawa?
What is the least humid month in Ottawa?
What is the average humidity in October in Ottawa?
How much does it rain in Ottawa in October?
When does it start to snow in Ottawa?
How many hours of daylight does Ottawa have in October?
When is the sunrise / sunset in October in Ottawa?
How long on average sun shines in October in Ottawa?
What is the UV index intensity in October in Ottawa?
Average temperature in October
Ottawa, IL
- Average high temperature in October: 61.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in October: 45.7°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 (17.2°F).
Average pressure in October
Ottawa, IL
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Ottawa, IL
- Average wind speed in October: 9.1mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in October
Ottawa, IL
- Average humidity in October: 72%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Ottawa, IL
- Average rainfall in October: 3.11"
The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in October
Ottawa, IL
- Average rainfall days in October: 13.3 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in October
Ottawa, IL
- Average snowfall in October: 0.28"
The month with the highest snowfall is February (5.08").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Ottawa, IL
- Average snowfall days in October: 0.3 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Ottawa, IL
- Average daylight in October: 11h and 1min
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 October: 5h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Ottawa, IL
- Average sunshine days in October: 15.4 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in October
Ottawa, IL
- Average UV index in October: 3
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 October
Ottawa, IL
- Average cloud cover in October: 40
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in October
Ottawa, IL
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Ottawa, Illinois, USA
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