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
Williamsville in October demonstrates a small temperature transition, adjusting from an average high of a warm 77.2°F (25.1°C) in September to a comfortable 64°F (17.8°C). During October, the temperature is averaged to a low of 48.2°F (9°C) at night.Humidity
The least humid month is October, with an average relative humidity of 70%.Rainfall
In Williamsville, Illinois, in October, it is raining for 9.5 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 131.5 rainfall days, and 18.54" (471mm) of precipitation is accumulated.Snowfall
In Williamsville, snow does not fall in May through October.Daylight
The average length of the day in October is 11h and 8min.On the first day of the month, sunrise is at 6:55 am and sunset at 6:40 pm. On the last day of October, sunrise is at 7:26 am and sunset at 5:56 pm CDT.
Sunshine
The average sunshine in October in Williamsville is 6.1h.UV index
In Williamsville, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 3 during October translates into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To protect against the Sun's most potent rays, avoid direct exposure around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in October?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October?
When it does not snow?
Does it snow in October?
How many hours of daylight does Williamsville have in October?
What time are sunrise and sunset in October?
How many hours of sunshine does Williamsville have in October?
What is the UV index intensity in October?
Average temperature in October
Williamsville, IL
- Average high temperature in October: 64°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in October: 48.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in October
Williamsville, IL
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Williamsville, IL
- Average wind speed in October: 9.1mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in October
Williamsville, IL
- Average humidity in October: 70%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Williamsville, IL
- Average rainfall in October: 1.46"
The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is December (0.83").
Average rainfall days in October
Williamsville, IL
- Average rainfall days in October: 9.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in October
Williamsville, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Williamsville, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (8 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
Williamsville, 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 24min).
- Average sunshine in October: 6h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in October
Williamsville, IL
- Average sunshine days in October: 20 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in October
Williamsville, IL
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Williamsville, IL
- Average cloud cover in October: 35
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June, August and September (Cloud cover 30).
Average visibility in October
Williamsville, 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).
Williamsville, Illinois, USA
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