October weather forecast
Ontario, WI

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Weather in October

October, the same as September, in Ontario, Wisconsin, is another refreshing autumn month, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 40.1°F (4.5°C).

Temperature

October's arrival witnesses a distinct drop in the average high-temperature, receding from September's agreeable 71.1°F (21.7°C) to a moderate 55.9°F (13.3°C). Ontario records an average low-temperature of 40.1°F (4.5°C) throughout the month of October.

Humidity

The average relative humidity in October in Ontario is 78%.

Rainfall

In Ontario, during October, the rain falls for 11.5 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Ontario, during the entire year, the rain falls for 131.7 days and collects up to 27.83" (707mm) of precipitation.

Snowfall

Months with snowfall in Ontario are January through May, October through December. October is the first month it typically snows in Ontario, Wisconsin. Throughout October, in the average 1.6 snowfall days, it receives 0.39" (10mm) of snow. In Ontario, during the entire year, snow falls for 50.2 days and aggregates up to 21.69" (551mm) of snow.

Daylight

In Ontario, the average length of the day in October is 11h and 0min.
On the first day of the month, sunrise is at 7:00 am and sunset at 6:42 pm. On the last day of October, in Ontario, sunrise is at 7:37 am and sunset at 5:53 pm CDT.

Sunshine

In Ontario, the average sunshine in October is 5h.

UV index

The average daily maximum UV index in October in Ontario is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In October, the UV index of 2 transforms into the following advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What is the usual temperature for Ontario in October?

In October, in Ontario, the average high-temperature is 55.9°F (13.3°C), and the average low-temperature is 40.1°F (4.5°C).

What is the average humidity in October in Ontario?

In Ontario, the average relative humidity in October is 78%.

How much does it rain in Ontario in October?

In Ontario, Wisconsin, in October, during 11.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When does it start to snow in Ontario?

October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.39" (10mm) of snow.

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

The average day length in October in Ontario is 11h and 0min.

When is the sunrise / sunset in October in Ontario?

In October, on the first day of the month, sunrise is at 7:00 am and sunset at 6:42 pm. On the last day of the month, in Ontario, sunrise is at 7:37 am and sunset at 5:53 pm CDT.

How long on average sun shines in October in Ontario?

In October, the average sunshine duration is 5h.

What is the UV index intensity in October in Ontario?

In Ontario, Wisconsin, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Ontario, WI

Average temperature in October - Ontario, WI
  • Average high temperature in October: 55.9°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (22.1°F).

  • Average low temperature in October: 40.1°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

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Average pressure in October
Ontario, WI

Average pressure in October - Ontario, WI
  • Average pressure in October: 29.99"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in October
Ontario, WI

Average wind speed in October - Ontario, WI
  • Average wind speed in October: 8.5mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in October
Ontario, WI

Average humidity in October - Ontario, WI
  • Average humidity in October: 78%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in October
Ontario, WI

Average rainfall in October - Ontario, WI
  • Average rainfall in October: 2.6"

The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in October
Ontario, WI

Average rainfall days in October - Ontario, WI
  • Average rainfall days in October: 11.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (3.5 days).

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Average snowfall in October
Ontario, WI

Average snowfall in October - Ontario, WI
  • Average snowfall in October: 0.39"

The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Ontario, WI

Average snowfall days in October - Ontario, WI
  • Average snowfall days in October: 1.6 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Ontario, WI

Average daylight in October / Average sunshine in October - Ontario, WI
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in October: 5h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in October
Ontario, WI

Average sunshine days in October - Ontario, WI
  • Average sunshine days in October: 17 days

The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (10.4 days).

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Average UV index in October
Ontario, WI

Average UV index in October - Ontario, WI
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in October
Ontario, WI

Average cloud cover in October - Ontario, WI
  • Average cloud cover in October: 45

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in October
Ontario, WI

Average visibility in October - Ontario, WI
  • Average visibility in October: 6mi

The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Ontario, Wisconsin, USA

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