October weather forecast
Bloomington, IN

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Weather in October

Bloomington in October takes on a quaint charm as the Fall season sets in definitively. With temperatures receding from September’s high of 77.2°F (25.1°C), sweaters and light jackets make their first appearance for the season. Tinges of chill gradually begin to infiltrate the air, especially during the mornings and evenings. October remains the stepping stone to Winter, with the city's greenery gradually falling prey to the fall foliage. A celebration of Halloween toward the month’s end marks the conclusion of the city’s outdoor festivities.

Temperature

As October commences, the average high-temperature shows a reduction, transitioning from a warm 77.2°F (25.1°C) in September to a comfortable 64.8°F (18.2°C). The low-temperature averages to a frosty 46.9°F (8.3°C) during the nights of October.

Humidity

With an average relative humidity of 75%, October is the least humid month.

Rainfall

The months with the least rainfall are September and October Rain falls for 10.1 days and accumulates 1.65" (42mm) of rain.

Snowfall

In Bloomington, snow does not fall in May through October.

Daylight

In October, the average length of the day is 11h and 10min.
On the first day of the month, sunrise is at 7:42 am and sunset at 7:28 pm. On the last day of October, sunrise is at 8:13 am and sunset at 6:45 pm EDT.

Sunshine

The average sunshine in October is 7h.

UV index

January, February, October and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 2 in October leads to these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Bloomington in October?

The average high-temperature, in October, in Bloomington, is 64.8°F (18.2°C), while the average low-temperature is 46.9°F (8.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 91.4°F (33°C).

What is the least humid month?

With an average relative humidity of 75%, October is the least humid month.

What is the average humidity in October?

The average relative humidity in October is 75%.

What is the driest month?

The months with the least rainfall are September and October Rain falls for 10.1 days and accumulates 1.65" (42mm) of rain.

How many days does it rain in October?

In October, the rain falls for 10.1 days. Throughout October, 1.65" (42mm) of precipitation is accumulated.

When it does not snow?

In Bloomington, snow does not fall in May through October.

Does it snow in October?

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

What is the average length of the day in October?

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

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 7:42 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 6:45 pm EDT.

How long on average sun shines in October?

The average sunshine duration in October is 7h.

When is the lowest UV index?

The months with the lowest UV index are January, February, October and December, with an average maximum UV index of 2.

How high is the UV index in October?

In Bloomington, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
Bloomington, IN

Average temperature in October - Bloomington, IN
  • Average high temperature in October: 64.8°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in October: 46.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in October
Bloomington, IN

Average pressure in October - Bloomington, 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 (29.94"Hg).

Average wind speed in October
Bloomington, IN

Average wind speed in October - Bloomington, IN
  • Average wind speed in October: 7.2mph

The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in October
Bloomington, IN

Average humidity in October - Bloomington, IN
  • Average humidity in October: 75%

The months with the highest relative humidity are May and December (82%).
The month with the lowest relative humidity is October (75%).

Average rainfall in October
Bloomington, IN

Average rainfall in October - Bloomington, IN
  • Average rainfall in October: 1.65"

The wettest month (with the highest rainfall) is April (3.11").
The driest months (with the least rainfall) are September and October (1.65").

Average rainfall days in October
Bloomington, IN

Average rainfall days in October - Bloomington, IN
  • Average rainfall days in October: 10.1 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in October
Bloomington, IN

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

The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Bloomington, IN

Average snowfall days in October - Bloomington, IN
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is January (7.1 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
Bloomington, IN

Average daylight in October / Average sunshine in October - Bloomington, 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 0min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in October
Bloomington, IN

Average sunshine days in October - Bloomington, IN
  • Average sunshine days in October: 18.9 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (9.2 days).

Average UV index in October
Bloomington, IN

Average UV index in October - Bloomington, IN
  • Average UV index in October: 2

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, October and December (UV index 2).

Average cloud cover in October
Bloomington, IN

Average cloud cover in October - Bloomington, IN
  • Average cloud cover in October: 36

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in October
Bloomington, IN

Average visibility in October - Bloomington, IN
  • Average visibility in October: 6mi

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

Bloomington, Indiana, USA

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