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
Iroquois observes a minor decrease in the average high-temperature with the arrival of October, falling from September's warm 75°F (23.9°C) to a refreshing 62.2°F (16.8°C). During October, Iroquois consistently records a temperature low averaging a frosty 46.9°F (8.3°C).Humidity
October is the least humid month, with an average relative humidity of 72%.Rainfall
In October, the rain falls for 11.2 days. Throughout October, 1.14" (29mm) of precipitation is accumulated. In Iroquois, Illinois, during the entire year, the rain falls for 140.3 days and collects up to 17.56" (446mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Iroquois, the average length of the day in October is 11h and 6min.On the first day of the month, sunrise is at 6:47 am and sunset at 6:31 pm. On the last day of October, sunrise is at 7:20 am and sunset at 5:47 pm CDT.
Sunshine
The average sunshine in October is 6.1h.UV index
In Iroquois, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In October, the maximum UV index of 2 translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures?
What is the least humid month?
What is the average humidity in October?
How much does it rain in October?
When it does not snow?
Does it snow in October?
How many hours of daylight does Iroquois have in October?
What time are sunrise and sunset in October?
How many hours of sunshine does Iroquois have in October?
What is the UV index intensity in October in Iroquois?
Average temperature in October
Iroquois, IL
- Average high temperature in October: 62.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in October: 46.9°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 (18.9°F).
Average pressure in October
Iroquois, IL
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Iroquois, IL
- Average wind speed in October: 9mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in October
Iroquois, 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
Iroquois, IL
- Average rainfall in October: 1.14"
The wettest month (with the highest rainfall) is May (2.64").
The driest months (with the least rainfall) are January and February (0.79").
Average rainfall days in October
Iroquois, IL
- Average rainfall days in October: 11.2 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in October
Iroquois, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Iroquois, IL
- Average snowfall days in October: 0.4 days
The month with the highest number of snowfall days is January (10.3 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
Iroquois, 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 18min).
- Average sunshine in October: 6h and 1min
The months with the most sunshine are June and July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Iroquois, IL
- Average sunshine days in October: 17.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in October
Iroquois, IL
- Average UV index in October: 2
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
Iroquois, IL
- Average cloud cover in October: 39
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in October
Iroquois, IL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Iroquois, Illinois, USA
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