October weather forecast
Harvel, IL

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Weather in October

October, like September, in Harvel, Illinois, is another enjoyable autumn month, with an average temperature ranging between min 48.2°F (9°C) and max 64.8°F (18.2°C).

Temperature

The onset of October results in a decrease in the average high-temperature, receding from a moderately hot 77.7°F (25.4°C) in September to a comfortable 64.8°F (18.2°C). The low-temperature in Harvel, Illinois, averages to a chilly 48.2°F (9°C) during the nights of October.

Humidity

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

Rainfall

In October, in Harvel, the rain falls for 10.6 days. Throughout October, 2.13" (54mm) of precipitation is accumulated. Throughout the year, in Harvel, there are 145.5 rainfall days, and 27.44" (697mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In October, the average length of the day is 11h and 9min.
On the first day of October, sunrise is at 6:54 am and sunset at 6:40 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:57 pm CDT.

Sunshine

The average sunshine in October is 6.3h.

UV index

The average daily maximum UV index in October in Harvel is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In October, the maximum UV index of 3 transforms into these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Enhance your sun protection with tightly woven, yet airy clothing. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature in Harvel?

In October, in Harvel, the average high-temperature is 64.8°F (18.2°C), and the average low-temperature is 48.2°F (9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 89.6°F (32°C).

What is the least humid month in Harvel?

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

What is the average humidity in October in Harvel?

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

How many days does it rain in October in Harvel?

In Harvel, during October, the rain falls for 10.6 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow in Harvel?

May through October are months without snowfall in Harvel, Illinois.

Does it snow in Harvel in October?

In Harvel, Illinois, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October in Harvel?

In October, the average day length is 11h and 9min.

What time are sunrise and sunset in October in Harvel?

In October, on the first day of the month, sunrise is at 6:54 am and sunset at 6:40 pm. On the last day of the month, in Harvel, sunrise is at 7:25 am and sunset at 5:57 pm CDT.

How many hours of sunshine does Harvel have in October?

In Harvel, Illinois, the average sunshine duration in October is 6.3h.

What is the UV index reading in October in Harvel?

The average daily maximum UV index in October in Harvel, Illinois, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Harvel, IL

Average temperature in October - Harvel, IL
  • Average high temperature in October: 64.8°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in October: 48.2°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in October
Harvel, IL

Average pressure in October - Harvel, IL
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in October
Harvel, IL

Average wind speed in October - Harvel, IL
  • Average wind speed in October: 8.8mph

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
Harvel, IL

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

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in October
Harvel, IL

Average rainfall in October - Harvel, IL
  • Average rainfall in October: 2.13"

The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is February (1.5").

Average rainfall days in October
Harvel, IL

Average rainfall days in October - Harvel, IL
  • Average rainfall days in October: 10.6 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.4 days).

Average snowfall in October
Harvel, IL

Average snowfall in October - Harvel, IL
  • Average snowfall in October: 0"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Harvel, IL

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

The month with the highest number of snowfall days is January (7.4 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
Harvel, IL

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

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 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in October
Harvel, IL

Average sunshine days in October - Harvel, IL
  • Average sunshine days in October: 18.5 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in October
Harvel, IL

Average UV index in October - Harvel, 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
Harvel, IL

Average cloud cover in October - Harvel, IL
  • Average cloud cover in October: 33

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July and September (Cloud cover 29).

Average visibility in October
Harvel, IL

Average visibility in October - Harvel, IL
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Harvel, Illinois, USA

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