October weather forecastCastleton, IL
October
Weather in October
October, like September, in Castleton, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 61.7°F (16.5°C) and 45.9°F (7.7°C).Temperature
Arrival of October comes with a reduction in the average high-temperature, falling from a warm 75.7°F (24.3°C) in September to a comfortable 61.7°F (16.5°C). During the month of October, Castleton's nighttime temperature lowers to an average of 45.9°F (7.7°C).Humidity
October is the least humid month in Castleton, with an average relative humidity of 72%.Rainfall
In Castleton, in October, during 9.4 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, there are 116.8 rainfall days, and 13.98" (355mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows in Castleton, Illinois. Throughout October, in the average 0.3 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, in Castleton, there are 26.8 snowfall days, and 6.26" (159mm) of snow is accumulated.Daylight
The average length of the day in October is 11h and 5min.On the first day of October, sunrise is at 6:56 am and sunset at 6:40 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:55 pm CDT.
Sunshine
The average sunshine in October is 5.7h.UV index
The average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in October converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Castleton, IL
- Average high temperature in October: 61.7°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 (29.7°F).
- Average low temperature in October: 45.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in October
Castleton, IL
- Average pressure in October: 30.01"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
Castleton, 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 (6.6mph).
Average humidity in October
Castleton, IL
- Average humidity in October: 72%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Castleton, IL
- Average rainfall in October: 1.22"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in October
Castleton, IL
- Average rainfall days in October: 9.4 days
The month with the highest number of rainy days is May (15.2 days).
The months with the least rainy days are January and February (4.2 days).
Average snowfall in October
Castleton, IL
- Average snowfall in October: 0.16"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Castleton, IL
- Average snowfall days in October: 0.3 days
The month with the highest number of snowfall days is January (8.6 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
Castleton, IL
- Average daylight in October: 11h and 6min
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: 5h and 42min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Castleton, IL
- Average sunshine days in October: 19.7 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in October
Castleton, 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
Castleton, 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
Castleton, 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).
