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
A shift in Rosemont's weather is observed as September turns into October, with the average high temperature reducing from a warm 73.4°F (23°C) to a mild 59.9°F (15.5°C). October's nights observe an average temperature of 47.1°F (8.4°C).Humidity
With an average relative humidity of 72%, October is the least humid month in Rosemont.Rainfall
In Rosemont, during October, the rain falls for 13.4 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Rosemont, during the entire year, the rain falls for 146.5 days and collects up to 24.13" (613mm) of precipitation.Snowfall
Months with snowfall in Rosemont are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.35" (9mm) of snow. In Rosemont, during the entire year, snow falls for 44.8 days and aggregates up to 12.83" (326mm) of snow.Daylight
The average length of the day in October in Rosemont is 11h and 4min.On the first day of the month, sunrise is at 6:49 am and sunset at 6:32 pm. On the last day of October, sunrise is at 7:23 am and sunset at 5:46 pm CDT.
Sunshine
The average sunshine in October in Rosemont, Illinois, is 5.5h.UV index
The average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 2 in October translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Rosemont?
What is the least humid month in Rosemont?
What is the average humidity in October in Rosemont?
How much does it rain in Rosemont in October?
When does it start snowing in Rosemont?
How many hours of daylight does Rosemont have in October?
When is the sunrise / sunset in October in Rosemont?
How many hours of sunshine does Rosemont have in October?
What is the UV index reading in October in Rosemont?
Average temperature in October
Rosemont, IL
- Average high temperature in October: 59.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in October: 47.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in October
Rosemont, IL
- Average pressure in October: 30"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 October
Rosemont, IL
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in October
Rosemont, IL
- Average humidity in October: 72%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Rosemont, IL
- Average rainfall in October: 2.01"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days in October
Rosemont, IL
- Average rainfall days in October: 13.4 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in October
Rosemont, IL
- Average snowfall in October: 0.35"
The month with the highest snowfall is February (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Rosemont, IL
- Average snowfall days in October: 0.5 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
Rosemont, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Rosemont, IL
- Average sunshine days in October: 14.7 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in October
Rosemont, IL
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Rosemont, IL
- Average cloud cover in October: 43
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in October
Rosemont, IL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Rosemont, Illinois, USA
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