October weather forecastProspect Heights, IL
October
Weather in October
October, like September, is a moderate autumn month in Prospect Heights, Illinois, with an average temperature ranging between max 59.9°F (15.5°C) and min 46.4°F (8°C).Temperature
Prospect Heights's weather in October involves a decrease in the average high-temperature, moving down from September's agreeable 73.2°F (22.9°C) to a mild 59.9°F (15.5°C). In Prospect Heights, October is marked by an average low-temperature of 46.4°F (8°C).Humidity
With an average relative humidity of 72%, October is the least humid month.Rainfall
In Prospect Heights, Illinois, in October, it is raining for 13.9 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 153.3 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. 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 Prospect Heights, Illinois, during the entire year, snow falls for 43.6 days and aggregates up to 17.95" (456mm) of snow.Daylight
In October, the average length of the day 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 7:24 am and sunset at 5:46 pm CDT.
Sunshine
The average sunshine in October is 5.5h.UV index
In October, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 2 in October translates into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Prospect Heights, IL
- Average high temperature in October: 59.9°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 (28.2°F).
- Average low temperature in October: 46.4°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in October
Prospect Heights, 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
Prospect Heights, IL
- Average wind speed in October: 9.3mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in October
Prospect Heights, 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
Prospect Heights, IL
- Average rainfall in October: 2.6"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is December (1.46").
Average rainfall days in October
Prospect Heights, IL
- Average rainfall days in October: 13.9 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in October
Prospect Heights, IL
- Average snowfall in October: 0.35"
The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Prospect Heights, IL
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Prospect Heights, IL
- Average daylight in October: 11h and 6min
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 30min
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
Prospect Heights, IL
- Average sunshine days in October: 14.9 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in October
Prospect Heights, IL
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in October
Prospect Heights, IL
- Average cloud cover in October: 43
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in October
Prospect Heights, 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).
