Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Ontario, Ohio, is another subzero cold winter month, with an average temperature ranging between max 30.7°F (-0.7°C) and min 18.3°F (-7.6°C). January is the coldest month, with an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.3°F (-7.6°C). Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Ontario, Ohio, with temperature in the range of an average low of 21.7°F (-5.7°C) and an average high of 35.1°F (1.7°C). In Ontario, the average high-temperature in February is relatively the same as in January - a cold 35.1°F (1.7°C). Weather in February »
Weather in March
March, the first month of the spring in Ontario, is a frosty month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 45.9°F (7.7°C). In Ontario, the average high-temperature in March increases from a cold 35.1°F (1.7°C) in February to a chilly 45.9°F (7.7°C). Weather in March »
Weather in April
April is a moderate spring month in Ontario, Ohio, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 58.3°F (14.6°C). In Ontario, the average high-temperature in April rises from a frosty 45.9°F (7.7°C) in March to a moderate 58.3°F (14.6°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Ontario, Ohio, with an average temperature ranging between min 51.6°F (10.9°C) and max 68.9°F (20.5°C). In May, the average high-temperature increases from a mild 58.3°F (14.6°C) in April to a pleasant 68.9°F (20.5°C). Weather in May »
Weather in June
June, the first month of the summer in Ontario, is a moderately hot month, with an average temperature varying between 58.6°F (14.8°C) and 76.1°F (24.5°C). In Ontario, the average high-temperature in June slightly increases from an agreeable 68.9°F (20.5°C) in May to a warm 76.1°F (24.5°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Ontario, Ohio, with temperature in the range of an average low of 62.1°F (16.7°C) and an average high of 79.5°F (26.4°C). The warmest month is July, with an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 62.1°F (16.7°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Ontario, Ohio, with an average temperature ranging between min 60.3°F (15.7°C) and max 78.3°F (25.7°C). In August, the average high-temperature is essentially the same as in July - a still moderately hot 78.3°F (25.7°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Ontario, Ohio, with an average temperature varying between 54.7°F (12.6°C) and 72.7°F (22.6°C). In Ontario, the average high-temperature in September marginally drops from a moderately hot 78.3°F (25.7°C) in August to a pleasant 72.7°F (22.6°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Ontario, Ohio, with an average temperature fluctuating between 60.6°F (15.9°C) and 45°F (7.2°C). In Ontario, the average high-temperature in October drops from a pleasant 72.7°F (22.6°C) in September to a mild 60.6°F (15.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Ontario, Ohio, with an average temperature fluctuating between 34°F (1.1°C) and 47.3°F (8.5°C). In November, the average high-temperature drops from a mild 60.6°F (15.9°C) in October to a chilly 47.3°F (8.5°C). Weather in November »
Weather in December
December, the first month of the winter in Ontario, is still a cold month, with an average temperature varying between 27.1°F (-2.7°C) and 37.2°F (2.9°C). In December, the average high-temperature decreases from a chilly 47.3°F (8.5°C) in November to a wintry 37.2°F (2.9°C). Weather in December »
[Resources]FAQ
What is the coldest month in Ontario?
The coldest month in Ontario, Ohio, is January, with an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.3°F (-7.6°C).
What is the most humid month in Ontario?
The most humid month in Ontario is January, with an average relative humidity of 86%.
How many days does it rain in Ontario?
In Ontario, during the entire year, the rain falls for 136.4 days and collects up to 13.15" (334mm) of precipitation.
When does it snow in Ontario?
Months with snowfall in Ontario, Ohio, are January through April, November and December.
How many days does it snow in Ontario?
Throughout the year, in Ontario, there are 33.8 snowfall days, and 5.12" (130mm) of snow is accumulated.
What is the month with the least sunshine in Ontario?
With an average of 3.1h of sunshine, January has the least sunshine of the year in Ontario.
What is the driest month in Ontario?
The month with the least rainfall is February, when the rain falls for 6.7 days and typically collects 0.79" (20mm) of precipitation.
What is the snowiest month in Ontario?
February is the month with the most snowfall. Snow falls for 8.3 days and accumulates 1.5" (38mm) of snow.
When is Daylight Saving Time (DST) in Ontario?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Ontario, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.
What are the least humid months in Ontario?
The months with the lowest humidity in Ontario, Ohio, are April, October and November, with an average relative humidity of 78%.
What is the wettest month in Ontario?
The month with the most rainfall is May, when the rain falls for 16.8 days and typically aggregates up to 1.61" (41mm) of precipitation.
When it does not snow in Ontario?
May through October are months without snowfall in Ontario.
When are the longest days in Ontario?
The month with the longest days in Ontario, Ohio, is June, with an average of 15h and 3min of daylight.
When is the highest UV index in Ontario?
June and August, with an average maximum UV index of 6, are months with the highest UV index.
What is the warmest month in Ontario?
July is the warmest month in Ontario, Ohio, with an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 62.1°F (16.7°C).
What are the months with the most sunshine in Ontario?
The months with the most sunshine in Ontario are July and August, with an average of 10.1h of sunshine.
What is the month with the shortest days in Ontario?
With an average of 9h and 19min of daylight, December has the shortest days of the year in Ontario, Ohio.
When is the lowest UV index in Ontario?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Ontario, OH
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (30.7°F).
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Ontario, OH
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Ontario, OH
- Average wind speed in January:
10.4mph - Average wind speed in February:
10mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.5mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.5mph - Average wind speed in October:
8.4mph - Average wind speed in November:
9.2mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Ontario, OH
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April, October and November (78%).
Average rainfall
Ontario, OH
- Average rainfall in January:
0.83" - Average rainfall in February:
0.79" - Average rainfall in March:
1.06" - Average rainfall in April:
1.38" - Average rainfall in May:
1.61" - Average rainfall in June:
1.46"
- Average rainfall in July:
1.22" - Average rainfall in August:
1.26" - Average rainfall in September:
0.87" - Average rainfall in October:
0.94" - Average rainfall in November:
0.91" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days
Ontario, OH
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
11 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.5 days).
Average snowfall
Ontario, OH
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Ontario, OH
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
5.5 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
6.7 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Ontario, OH
- Average daylight in January:
9h and 39min - Average daylight in February:
10h and 41min - Average daylight in March:
11h and 58min - Average daylight in April:
13h and 20min - Average daylight in May:
14h and 28min - Average daylight in June:
15h and 3min
- Average daylight in July:
14h and 45min - Average daylight in August:
13h and 45min - Average daylight in September:
12h and 27min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 55min - Average daylight in December:
9h and 19min
The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).
- Average sunshine in January:
3h and 6min - Average sunshine in February:
3h and 54min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days
Ontario, OH
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
16 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (11.4 days).
Average UV index
Ontario, OH
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Ontario, OH
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Ontario, OH
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
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