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 average high-temperature decreases in October, shifting from a moderately hot 75.7°F (24.3°C) in September to a comfortable 61.9°F (16.6°C). October in Eureka sees the temperature falling to a mean low of 46.4°F (8°C).Humidity
With an average relative humidity of 72%, October is the least humid month.Rainfall
In Eureka, in October, during 11.8 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Eureka, during the entire year, the rain falls for 147.1 days and collects up to 24.17" (614mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.4 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, in Eureka, there are 34.9 snowfall days, and 11.65" (296mm) of snow is accumulated.Daylight
In Eureka, the average length of the day in October is 11h and 7min.On the first day of October in Eureka, sunrise is at 6:54 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:54 pm CDT.
Sunshine
The average sunshine in October is 5.8h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In October, the average maximum UV index of 3 translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular 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 usual temperature for Eureka in October?
What is the least humid month in Eureka?
What is the average humidity in October in Eureka?
How many days does it rain in October in Eureka?
When does it start snowing in Eureka?
How many hours of daylight does Eureka have in October?
What time are sunrise and sunset in October in Eureka?
How many hours of sunshine does Eureka have in October?
How high is the UV index in October in Eureka?
Average temperature in October
Eureka, IL
- Average high temperature in October: 61.9°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 (30.4°F).
- Average low temperature in October: 46.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in October
Eureka, IL
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Eureka, IL
- Average wind speed in October: 9.4mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in October
Eureka, 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
Eureka, IL
- Average rainfall in October: 2.28"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.22").
Average rainfall days in October
Eureka, IL
- Average rainfall days in October: 11.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in October
Eureka, IL
- Average snowfall in October: 0.16"
The months with the highest snowfall are January and February (2.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Eureka, IL
- Average snowfall days in October: 0.4 days
The month with the highest number of snowfall days is January (11 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
Eureka, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Eureka, IL
- Average sunshine days in October: 16.5 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9 days).
Average UV index in October
Eureka, 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, February, November and December (UV index 2).
Average cloud cover in October
Eureka, IL
- Average cloud cover in October: 38
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in October
Eureka, 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).
Eureka, Illinois, USA
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