October weather forecast
Sullivan, IN

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Weather in October

October, the same as September, is another enjoyable autumn month in Sullivan, Indiana, with temperature in the range of an average low of 48.4°F (9.1°C) and an average high of 65.1°F (18.4°C).

Temperature

October involves a decrease in temperature, down from a moderately hot 77.7°F (25.4°C) in September to an enjoyable 65.1°F (18.4°C). Sullivan reports an average nighttime low-temperature of 48.4°F (9.1°C) in October.

Humidity

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

Rainfall

In Sullivan, in October, during 10.7 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, in Sullivan, there are 150.1 rainfall days, and 28.5" (724mm) of precipitation is accumulated.

Snowfall

In Sullivan, Indiana, snow does not fall in May through October.

Daylight

The average length of the day in October in Sullivan is 11h and 10min.
On the first day of the month, sunrise is at 7:46 am and sunset at 7:31 pm. On the last day of October, sunrise is at 8:16 am and sunset at 6:49 pm EDT.

Sunshine

In October, the average sunshine in Sullivan is 7.1h.

UV index

In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 3 during October morphs into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What are October temperatures in Sullivan?

In Sullivan, in October, the average high-temperature is 65.1°F (18.4°C), and the average low-temperature is 48.4°F (9.1°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is estimated at 89.6°F (32°C).

What is the least humid month in Sullivan?

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

What is the average humidity in October in Sullivan?

In October, the average relative humidity is 71%.

How much does it rain in Sullivan in October?

In Sullivan, in October, during 10.7 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow in Sullivan?

May through October are months without snowfall in Sullivan.

Does it snow in Sullivan in October?

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

How many hours of daylight does Sullivan have in October?

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

When are sunrise and sunset in October in Sullivan?

On the first day of October in Sullivan, Indiana, sunrise is at 7:46 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 8:16 am and sunset at 6:49 pm EDT.

How many hours of sunshine does Sullivan have in October?

In October, the average sunshine duration is 7.1h.

How high is the UV index in October in Sullivan?

The average daily maximum UV index in October in Sullivan, Indiana, is 3. A UV Index of 3 to 5 symbolizes 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
Sullivan, IN

Average temperature in October - Sullivan, IN
  • 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 (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in October
Sullivan, IN

Average pressure in October - Sullivan, IN
  • 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 (29.93"Hg).

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Average wind speed in October
Sullivan, IN

Average wind speed in October - Sullivan, IN
  • Average wind speed in October: 8.4mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in October
Sullivan, IN

Average humidity in October - Sullivan, IN
  • 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%).

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Average rainfall in October
Sullivan, IN

Average rainfall in October - Sullivan, IN
  • Average rainfall in October: 1.89"

The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in October
Sullivan, IN

Average rainfall days in October - Sullivan, IN
  • Average rainfall days in October: 10.7 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in October
Sullivan, IN

Average snowfall in October - Sullivan, IN
  • Average snowfall in October: 0"

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in October
Sullivan, IN

Average snowfall days in October - Sullivan, IN
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (7.3 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
Sullivan, IN

Average daylight in October / Average sunshine in October - Sullivan, IN
  • 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: 7h and 1min

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

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Average sunshine days in October
Sullivan, IN

Average sunshine days in October - Sullivan, IN
  • Average sunshine days in October: 18.6 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.1 days).

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Average UV index in October
Sullivan, IN

Average UV index in October - Sullivan, IN
  • 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, November and December (UV index 2).

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Average cloud cover in October
Sullivan, IN

Average cloud cover in October - Sullivan, IN
  • Average cloud cover in October: 34

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in October
Sullivan, IN

Average visibility in October - Sullivan, IN
  • 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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Sullivan, Indiana, USA

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