October weather forecastHerrick, IL
October
Weather in October
October, like September, in Herrick, Illinois, is another refreshing autumn month, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 48.4°F (9.1°C).Temperature
The arrival of October signals a shift in temperature, down from a warm 77.9°F (25.5°C) in September to a comfortable 65.1°F (18.4°C). Throughout the month of October, Herrick sees a steady low-temperature average of 48.4°F (9.1°C).Humidity
The least humid month in Herrick is October, with an average relative humidity of 71%.Rainfall
In Herrick, in October, it is raining for 9.7 days, with typically 1.97" (50mm) of accumulated precipitation. In Herrick, during the entire year, the rain falls for 139.3 days and collects up to 23.94" (608mm) of precipitation.Snowfall
May through October are months without snowfall in Herrick.Daylight
The average length of the day in October in Herrick is 11h and 10min.On the first day of the month, sunrise is at 6:52 am and sunset at 6:38 pm. On the last day of October, sunrise is at 7:23 am and sunset at 5:55 pm CDT.
Sunshine
The average sunshine in October is 6.3h.UV index
The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 3 in October leads to these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Boost your sun resistance with garments that are densely woven yet spacious. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Herrick, IL
- Average high temperature in October: 65.1°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in October: 48.4°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in October
Herrick, IL
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Herrick, IL
- Average wind speed in October: 8.7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in October
Herrick, IL
- Average humidity in October: 71%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Herrick, IL
- Average rainfall in October: 1.97"
The wettest months (with the highest rainfall) are April and June (2.95").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in October
Herrick, IL
- Average rainfall days in October: 9.7 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in October
Herrick, IL
- Average snowfall in October: 0"
The month with the highest snowfall is December (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Herrick, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (5.7 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
Herrick, IL
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 6h and 18min
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 18min).
Average sunshine days in October
Herrick, IL
- Average sunshine days in October: 19.4 days
The months with the most sunshine days are January and November (19.5 days).
The months with the least sunshine days are May and July (12.3 days).
Average UV index in October
Herrick, 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
Herrick, IL
- Average cloud cover in October: 34
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in October
Herrick, 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).





