October weather forecast
Saint John, IN

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Weather in October

October, like September, in Saint John, Indiana, is another refreshing autumn month, with an average temperature varying between 61.5°F (16.4°C) and 46.8°F (8.2°C).

Temperature

October's arrival coincides with a drop in the average high-temperature, decreasing from September's warm 74.3°F (23.5°C) to an enjoyable 61.5°F (16.4°C). Throughout the month of October, the average temperature dips to a frosty 46.8°F (8.2°C) at night.

Humidity

With an average relative humidity of 73%, October is the least humid month.

Rainfall

In October, in Saint John, the rain falls for 12.3 days. Throughout October, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 143.5 rainfall days, and 21.02" (534mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in October in Saint John is 11h and 5min.
On the first day of October, sunrise is at 6:47 am and sunset at 6:31 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:45 pm CDT.

Sunshine

The average sunshine in October is 6h.

UV index

In Saint John, Indiana, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during October leads to these instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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 Saint John?

In Saint John, in October, the average high-temperature is 61.5°F (16.4°C), and the average low-temperature is 46.8°F (8.2°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the least humid month in Saint John?

With an average relative humidity of 73%, October is the least humid month in Saint John.

What is the average humidity in October in Saint John?

The average relative humidity in October in Saint John, Indiana, is 73%.

How much does it rain in Saint John in October?

In Saint John, during October, the rain falls for 12.3 days and regularly aggregates up to 1.61" (41mm) of precipitation.

When it does not snow in Saint John?

May through October are months without snowfall in Saint John.

Does it snow in Saint John in October?

In Saint John, Indiana, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October in Saint John?

The average day length in October in Saint John, Indiana, is 11h and 5min.

When are sunrise and sunset in October in Saint John?

In October, on the first day of the month, sunrise is at 6:47 am and sunset at 6:31 pm. On the last day of the month, in Saint John, sunrise is at 7:21 am and sunset at 5:45 pm CDT.

How many hours of sunshine does Saint John have in October?

In October, the average sunshine duration in Saint John is 6h.

What is the UV index reading in October in Saint John?

In Saint John, Indiana, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Saint John, IN

Average temperature in October - Saint John, IN
  • Average high temperature in October: 61.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in October: 46.8°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in October
Saint John, IN

Average pressure in October - Saint John, IN
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
Saint John, IN

Average wind speed in October - Saint John, IN
  • Average wind speed in October: 8.9mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in October
Saint John, IN

Average humidity in October - Saint John, IN
  • Average humidity in October: 73%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in October
Saint John, IN

Average rainfall in October - Saint John, IN
  • Average rainfall in October: 1.61"

The wettest month (with the highest rainfall) is May (2.83").
The driest months (with the least rainfall) are February and November (0.98").

Average rainfall days in October
Saint John, IN

Average rainfall days in October - Saint John, IN
  • Average rainfall days in October: 12.3 days

The month with the highest number of rainy days is July (17.6 days).
The months with the least rainy days are January and February (5.3 days).

Average snowfall in October
Saint John, IN

Average snowfall in October - Saint John, IN
  • Average snowfall in October: 0"

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Saint John, IN

Average snowfall days in October - Saint John, IN
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Saint John, IN

Average daylight in October / Average sunshine in October - Saint John, IN
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in October: 6h and 0min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in October
Saint John, IN

Average sunshine days in October - Saint John, IN
  • Average sunshine days in October: 16.4 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (10.5 days).

Average UV index in October
Saint John, IN

Average UV index in October - Saint John, IN
  • Average UV index in October: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in October
Saint John, IN

Average cloud cover in October - Saint John, IN
  • Average cloud cover in October: 41

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in October
Saint John, IN

Average visibility in October - Saint John, IN
  • Average visibility in October: 6mi

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

Saint John, Indiana, USA

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