October weather forecast
Altamont, IL

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Weather in October

October, like September, in Altamont, Illinois, is another enjoyable autumn month, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 48.6°F (9.2°C).

Temperature

October's onset brings a reduction in the average high-temperature, from a warm 77.5°F (25.3°C) in September to a comfortable 65.1°F (18.4°C). In Altamont, an average nighttime temperature of 48.6°F (9.2°C) is expected during October.

Humidity

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

Rainfall

In Altamont, Illinois, during October, the rain falls for 10.2 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, in Altamont, there are 141.3 rainfall days, and 26.77" (680mm) of precipitation is accumulated.

Snowfall

In Altamont, Illinois, snow does not fall in April through October.

Daylight

In October, the average length of the day is 11h and 10min.
On the first day of October, sunrise is at 6:51 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:54 pm CDT.

Sunshine

In Altamont, 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 moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 3 in October transforms into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

What is the average October temperature in Altamont?

Altamont in October has an average high-temperature of 65.1°F (18.4°C) and an average low-temperature of 48.6°F (9.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 89.6°F (32°C).

What is the least humid month in Altamont?

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

What is the average humidity in October in Altamont?

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

How much does it rain in Altamont in October?

In Altamont, Illinois, in October, it is raining for 10.2 days, with typically 2.05" (52mm) of accumulated precipitation.

When it does not snow in Altamont?

April through October are months without snowfall.

Does it snow in Altamont in October?

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

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

In October, the average day length in Altamont is 11h and 10min.

When are sunrise and sunset in October in Altamont?

On the first day of October in Altamont, sunrise is at 6:51 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:54 pm CDT.

How long on average sun shines in October in Altamont?

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

How high is the UV index in October in Altamont?

The average daily maximum UV index in October in Altamont, Illinois, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Altamont, IL

Average temperature in October - Altamont, 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 (35.6°F).

  • Average low temperature in October: 48.6°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).

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Average pressure in October
Altamont, IL

Average pressure in October - Altamont, 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).

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Average wind speed in October
Altamont, IL

Average wind speed in October - Altamont, IL
  • Average wind speed in October: 8.7mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in October
Altamont, IL

Average humidity in October - Altamont, 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%).

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Average rainfall in October
Altamont, IL

Average rainfall in October - Altamont, IL
  • Average rainfall in October: 2.05"

The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is February (1.38").

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Average rainfall days in October
Altamont, IL

Average rainfall days in October - Altamont, IL
  • Average rainfall days in October: 10.2 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in October
Altamont, IL

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

The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in October
Altamont, IL

Average snowfall days in October - Altamont, 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).

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Average daylight in October /
Average sunshine in October
Altamont, IL

Average daylight in October / Average sunshine in October - Altamont, 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 18min).

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Average sunshine days in October
Altamont, IL

Average sunshine days in October - Altamont, IL
  • Average sunshine days in October: 19.3 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in October
Altamont, IL

Average UV index in October - Altamont, 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).

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Average cloud cover in October
Altamont, IL

Average cloud cover in October - Altamont, 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 September (Cloud cover 29).

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Average visibility in October
Altamont, IL

Average visibility in October - Altamont, 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).

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Altamont, Illinois, USA

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