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 start of October signals a decrease in the average high-temperature, transitioning from a warm 80.4°F (26.9°C) in September to an enjoyable 67.8°F (19.9°C). During October, the nighttime temperature in Hartsville averages to a chilly 49.3°F (9.6°C).Humidity
The least humid month in Hartsville is October, with an average relative humidity of 70%.Rainfall
In Hartsville, during October, the rain falls for 10.5 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 158.7 rainfall days, and 36.1" (917mm) of precipitation is accumulated.Snowfall
In Hartsville, snow does not fall in May through October.Daylight
The average length of the day in October in Hartsville, Illinois, is 11h and 13min.On the first day of the month, sunrise is at 6:50 am and sunset at 6:36 pm. On the last day of October, in Hartsville, sunrise is at 7:18 am and sunset at 5:56 pm CDT.
Sunshine
In October, the average sunshine in Hartsville is 6.7h.UV index
In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 3 during October translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Hartsville?
What is the least humid month in Hartsville?
What is the average humidity in October in Hartsville?
How much does it rain in Hartsville in October?
When it does not snow in Hartsville?
Does it snow in Hartsville in October?
How many hours of daylight does Hartsville have in October?
What time are sunrise and sunset in October in Hartsville?
How long on average sun shines in October in Hartsville?
What is the UV index reading in October in Hartsville?
Average temperature in October
Hartsville, IL
- Average high temperature in October: 67.8°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in October: 49.3°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in October
Hartsville, IL
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in October
Hartsville, IL
- Average wind speed in October: 8mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in October
Hartsville, IL
- Average humidity in October: 70%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Hartsville, IL
- Average rainfall in October: 2.68"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in October
Hartsville, IL
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in October
Hartsville, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Hartsville, IL
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Hartsville, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 6h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in October
Hartsville, IL
- Average sunshine days in October: 19.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in October
Hartsville, IL
- Average UV index in October: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in October
Hartsville, IL
- Average cloud cover in October: 32
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in October
Hartsville, 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).
Hartsville, Illinois, USA
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