October weather forecastOntario, NY
October
Weather in October
October, the same as September, in Ontario, New York, is another mild autumn month, with an average temperature ranging between min 48.2°F (9°C) and max 58.1°F (14.5°C).Temperature
The onset of October introduces a moderate change in Ontario's weather, with average high-temperatures falling from September's pleasant 70.3°F (21.3°C) to a moderate 58.1°F (14.5°C). Ontario temperatures generally rest at a low of 48.2°F (9°C) during the October nights.Humidity
The average relative humidity in October in Ontario is 77%.Rainfall
The month with the most rainfall is October, when the rain falls for 17.3 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Ontario. October is the first month it typically snows in Ontario. Throughout October, in the average 0.5 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 62.3 snowfall days, and 20.63" (524mm) of snow is accumulated.Daylight
In Ontario, the average length of the day in October is 11h and 1min.On the first day of the month, sunrise is at 7:07 am and sunset at 6:49 pm. On the last day of October, sunrise is at 7:43 am and sunset at 6:01 pm EDT.
Sunshine
In Ontario, the average sunshine in October is 4.8h.UV index
The average daily maximum UV index in October in Ontario, New York, is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In October, a regular UV index of 3 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Ontario, NY
- Average high temperature in October: 58.1°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in October: 48.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in October
Ontario, NY
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Ontario, NY
- Average wind speed in October: 11.1mph
The windiest month (with the highest average wind speed) is January (13.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in October
Ontario, NY
- Average humidity in October: 77%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are August and September (75%).
Average rainfall in October
Ontario, NY
- Average rainfall in October: 3.23"
The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in October
Ontario, NY
- Average rainfall days in October: 17.3 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in October
Ontario, NY
- Average snowfall in October: 0.04"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Ontario, NY
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (15.4 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, NY
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in October: 4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in October
Ontario, NY
- Average sunshine days in October: 10.1 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in October
Ontario, NY
- Average UV index in October: 3
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Ontario, NY
- Average cloud cover in October: 49
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in October
Ontario, NY
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





