Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
Ontario in October sees a clear temperature decline, with average high-temperatures decreasing from a pleasant 71.1°F (21.7°C) in September to a moderate 55.9°F (13.3°C). Ontario witnesses an average low-temperature of 40.1°F (4.5°C) throughout the month of October.Humidity
The average relative humidity in October is 78%.Rainfall
In October, the rain falls for 11.5 days. Throughout October, 2.6" (66mm) of precipitation is accumulated. 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 are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.39" (10mm) of snow. In Ontario, Wisconsin, 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, 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
In October, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: In October, the maximum UV index of 2 suggests this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the average humidity in October?
How much does it rain in October?
When does it start to snow?
What is the average length of the day in October?
What time are sunrise and sunset in October?
How long on average sun shines in October?
What is the UV index intensity in October?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Ontario, Wisconsin, USA
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