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 beginning of October marks a decrease in the average high-temperature, transitioning from a moderately hot 73.4°F (23°C) in September to a mild 60.4°F (15.8°C). During October, the nighttime temperature averages of 46.6°F (8.1°C).Humidity
The least humid month is October, with an average relative humidity of 72%.Rainfall
In October, in Westchester, Illinois, the rain falls for 13 days. Throughout October, 2.17" (55mm) of precipitation is accumulated. Throughout the year, there are 149.4 rainfall days, and 25.08" (637mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Westchester. October is the first month it typically snows in Westchester, Illinois. Throughout October, in the average 0.4 snowfall days, it receives 0.35" (9mm) of snow. In Westchester, Illinois, during the entire year, snow falls for 45.8 days and aggregates up to 14.25" (362mm) of snow.Daylight
The average length of the day in October is 11h and 4min.On the first day of October in Westchester, sunrise is at 6:49 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:46 pm CDT.
Sunshine
The average sunshine in October is 5.6h.UV index
In Westchester, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In October, the maximum UV index of 3 transforms into these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What is the temperature in October in Westchester?
What is the least humid month in Westchester?
What is the average humidity in October in Westchester?
How many days does it rain in October in Westchester?
When does it start to snow in Westchester?
What is the average length of the day in October in Westchester?
What time are sunrise and sunset in October in Westchester?
How many hours of sunshine does Westchester have in October?
How high is the UV index in October in Westchester?
Average temperature in October
Westchester, IL
- Average high temperature in October: 60.4°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in October: 46.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in October
Westchester, IL
- Average pressure in October: 30.01"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
Westchester, IL
- Average wind speed in October: 9.1mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in October
Westchester, 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
Westchester, IL
- Average rainfall in October: 2.17"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in October
Westchester, IL
- Average rainfall days in October: 13 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in October
Westchester, IL
- Average snowfall in October: 0.35"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Westchester, IL
- Average snowfall days in October: 0.4 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Westchester, 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 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Westchester, IL
- Average sunshine days in October: 14.2 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in October
Westchester, 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 and December (UV index 1).
Average cloud cover in October
Westchester, 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 30).
Average visibility in October
Westchester, 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).
Westchester, Illinois, USA
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