October weather forecast
Coulterville, IL

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Weather in October

October, the same as September, is another refreshing autumn month in Coulterville, Illinois, with an average temperature fluctuating between 49.1°F (9.5°C) and 66.9°F (19.4°C).

Temperature

The onset of October is marked by a decrease in temperature, transitioning from a moderately hot 79.5°F (26.4°C) in September to a refreshing 66.9°F (19.4°C). Throughout the October nights, Coulterville encounters a low-temperature of 49.1°F (9.5°C).

Humidity

With an average relative humidity of 71%, October is the least humid month in Coulterville.

Rainfall

In October, in Coulterville, the rain falls for 8.3 days. Throughout October, 1.38" (35mm) of precipitation is accumulated. In Coulterville, during the entire year, the rain falls for 125.7 days and collects up to 18.31" (465mm) of precipitation.

Snowfall

Months with snowfall are January through March, October through December. October is the first month it typically snows in Coulterville. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Coulterville, during the entire year, snow falls for 14.8 days and aggregates up to 3.94" (100mm) of snow.

Daylight

The average length of the day in October is 11h and 11min.
On the first day of the month, sunrise is at 6:54 am and sunset at 6:40 pm. On the last day of October, sunrise is at 7:24 am and sunset at 5:59 pm CDT.

Sunshine

In Coulterville, the average sunshine in October is 6.4h.

UV index

The average daily maximum UV index in October in Coulterville is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In October, the maximum UV index of 3 translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures in Coulterville?

The high-temperature in Coulterville during October is 66.9°F (19.4°C) and the low-temperature is 49.1°F (9.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is computed to be 96.8°F (36°C).

What is the least humid month in Coulterville?

With an average relative humidity of 71%, October is the least humid month in Coulterville, Illinois.

What is the average humidity in October in Coulterville?

In October, the average relative humidity in Coulterville is 71%.

How many days does it rain in October in Coulterville?

In Coulterville, in October, during 8.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

When does it start to snow in Coulterville?

October is the first month it typically snows in Coulterville. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Coulterville have in October?

In Coulterville, Illinois, the average day length in October is 11h and 11min.

When are sunrise and sunset in October in Coulterville?

On the first day of October in Coulterville, sunrise is at 6:54 am and sunset at 6:40 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:59 pm CDT.

How long on average sun shines in October in Coulterville?

The average sunshine duration in October in Coulterville is 6.4h.

What is the UV index intensity in October in Coulterville?

In Coulterville, Illinois, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Coulterville, IL

Average temperature in October - Coulterville, IL
  • Average high temperature in October: 66.9°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 (38.8°F).

  • Average low temperature in October: 49.1°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 (25.3°F).

Average pressure in October
Coulterville, IL

Average pressure in October - Coulterville, 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 (29.93"Hg).

Average wind speed in October
Coulterville, IL

Average wind speed in October - Coulterville, IL
  • Average wind speed in October: 7.9mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in October
Coulterville, IL

Average humidity in October - Coulterville, IL
  • Average humidity in October: 71%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in October
Coulterville, IL

Average rainfall in October - Coulterville, IL
  • Average rainfall in October: 1.38"

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in October
Coulterville, IL

Average rainfall days in October - Coulterville, IL
  • Average rainfall days in October: 8.3 days

The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in October
Coulterville, IL

Average snowfall in October - Coulterville, IL
  • Average snowfall in October: 0.08"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in October
Coulterville, IL

Average snowfall days in October - Coulterville, IL
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (4.8 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
Coulterville, IL

Average daylight in October / Average sunshine in October - Coulterville, IL
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in October: 6h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in October
Coulterville, IL

Average sunshine days in October - Coulterville, IL
  • Average sunshine days in October: 21.6 days

The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13 days).

Average UV index in October
Coulterville, IL

Average UV index in October - Coulterville, 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
Coulterville, IL

Average cloud cover in October - Coulterville, IL
  • Average cloud cover in October: 32

The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in October
Coulterville, IL

Average visibility in October - Coulterville, 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).

Coulterville, Illinois, USA

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