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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, like December, is another subzero cold winter month in Ottawa, Ohio, with an average temperature varying between 31.1°F (-0.5°C) and 19.8°F (-6.8°C). January, marked by an average high-temperature of 31.1°F (-0.5°C) and a low-temperature of 19.8°F (-6.8°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Ottawa, Ohio, with an average temperature ranging between min 22.8°F (-5.1°C) and max 34.7°F (1.5°C). The advent of February reveals an average high-temperature of a cold 34.7°F (1.5°C), showing minimal difference from the prior month. Weather in February »
Weather in March
March, the first month of the spring in Ottawa, is a frosty month, with an average temperature ranging between min 31.8°F (-0.1°C) and max 46.2°F (7.9°C). The shift into March is marked by a rise in the average high-temperature, moving from February's wintry 34.7°F (1.5°C) to a chilly 46.2°F (7.9°C). Weather in March »
Weather in April
April in Ottawa, Ohio, is a moderate spring month, with an average temperature ranging between min 41.7°F (5.4°C) and max 58.6°F (14.8°C). Noticing a change, the average high-temperature during April moves from March's frosty 46.2°F (7.9°C) to a mild 58.6°F (14.8°C). Weather in April »
Weather in May
May, the last month of the spring in Ottawa, is an agreeable month, with an average temperature ranging between min 53.6°F (12°C) and max 70.3°F (21.3°C). As Ottawa welcomes May, the average high-temperature sees a rise, transitioning from a mild 58.6°F (14.8°C) in April to a pleasant 70.3°F (21.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Ottawa, Ohio, with an average temperature fluctuating between 61°F (16.1°C) and 77.9°F (25.5°C). June signifies a subtle uplift in the average high-temperature, adjusting from an agreeable 70.3°F (21.3°C) in May to a warm 77.9°F (25.5°C). Weather in June »
Weather in July
July, like June, in Ottawa, Ohio, is another warm summer month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 81.1°F (27.3°C). In Ottawa, the month of July is known for its highest average temperatures, reaching a high of 81.1°F (27.3°C) and a low of 64°F (17.8°C). In July, the average heat index is appraised at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Ottawa, is also a moderately hot month, with an average temperature ranging between min 61.2°F (16.2°C) and max 79.2°F (26.2°C). Ottawa, Ohio, starts August with an average high-temperature of a still warm 79.2°F (26.2°C), hinting at a minimal fluctuation from July. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Ottawa, Ohio, with an average temperature fluctuating between 55.6°F (13.1°C) and 74.1°F (23.4°C). September's climate shows a minor adjustment in average high-temperatures to a still warm 74.1°F (23.4°C) from August's 79.2°F (26.2°C). Weather in September »
Weather in October
October, like September, in Ottawa, Ohio, is another enjoyable autumn month, with an average temperature varying between 46.2°F (7.9°C) and 61.9°F (16.6°C). October's arrival comes with a decrease in the average high-temperature, moving from a moderately hot 74.1°F (23.4°C) in September to an enjoyable 61.9°F (16.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Ottawa, is also a frosty month, with an average temperature fluctuating between 35.1°F (1.7°C) and 47.8°F (8.8°C). The start of November involves a temperature drop, moving from a refreshing 61.9°F (16.6°C) in October to a chilly 47.8°F (8.8°C). Weather in November »
Weather in December
December, the first month of the winter in Ottawa, is still a cold month, with an average temperature varying between 27.3°F (-2.6°C) and 36.9°F (2.7°C). Ottawa's December weather features a mild decline in high-temperatures, reducing from a chilly 47.8°F (8.8°C) in November to an icy 36.9°F (2.7°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Ottawa?
The coldest period is January, when temperatures fluctuate between an average high of 31.1°F (-0.5°C) and a low of 19.8°F (-6.8°C).
How many days does it rain in Ottawa?
Throughout the year, in Ottawa, there are 161 rainfall days, and 27.24" (692mm) of precipitation is accumulated.
When does it snow in Ottawa?
January through May, October through December are months with snowfall.
How many days does it snow in Ottawa?
Throughout the year, in Ottawa, Ohio, there are 50.5 snowfall days, and 13.66" (347mm) of snow is accumulated.
What is the month with the least sunshine in Ottawa?
With an average of 3.3h of sunshine, January has the least sunshine of the year in Ottawa, Ohio.
What is the most humid month in Ottawa?
With an average relative humidity of 84%, February is the most humid month in Ottawa, Ohio.
What is the driest month in Ottawa?
February is the month with the least rainfall in Ottawa. Rain falls for 8 days and accumulates 1.65" (42mm) of precipitation.
What is the snowiest month in Ottawa?
February is the month with the most snowfall in Ottawa, Ohio. Snow falls for 12.3 days and accumulates 4.06" (103mm) of snow.
When is Daylight Saving Time (DST) in Ottawa?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Ottawa, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the rainiest month in Ottawa?
The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 3.15" (80mm) of precipitation.
When it does not snow in Ottawa?
June through September are months without snowfall in Ottawa, Ohio.
When are the longest days in Ottawa?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What are the months with the highest UV index in Ottawa?
The months with the highest UV index in Ottawa are June and July, with an average maximum UV index of 6.
What month is the hottest in Ottawa?
Temperature records in Ottawa, Ohio, mark July as the warmest month, with highs averaging 81.1°F (27.3°C) and lows at 64°F (17.8°C).
What month has the most sunshine in Ottawa?
With an average of 9.9h of sunshine, July has the most sunshine of the year.
What is the least humid month in Ottawa?
With an average relative humidity of 74%, October is the least humid month.
What is the month with the shortest days in Ottawa?
December has the shortest days of the year in Ottawa, with an average of 9h and 18min of daylight.
What is the month with the lowest UV index in Ottawa?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Ottawa, OH
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.1°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Ottawa, OH
- Average pressure in January:
30.11"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:
29.98"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Ottawa, OH
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.5mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Ottawa, OH
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Ottawa, OH
- Average rainfall in January:
1.85" - Average rainfall in February:
1.65" - Average rainfall in March:
2.2" - Average rainfall in April:
3.07" - Average rainfall in May:
3.15" - Average rainfall in June:
3.07"
- Average rainfall in July:
2.6" - Average rainfall in August:
2.28" - Average rainfall in September:
1.81" - Average rainfall in October:
1.97" - Average rainfall in November:
1.89" - Average rainfall in December:
1.69"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days
Ottawa, OH
- Average rainfall days in January:
7.1 days - Average rainfall days in February:
8 days - Average rainfall days in March:
12 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
15 days - Average rainfall days in September:
13.7 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
11.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.1 days).
Average snowfall
Ottawa, OH
- Average snowfall in January:
3.31" - Average snowfall in February:
4.06" - Average snowfall in March:
1.54" - Average snowfall in April:
0.79" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Ottawa, OH
- Average snowfall days in January:
14.3 days - Average snowfall days in February:
12.3 days - Average snowfall days in March:
6.4 days - Average snowfall days in April:
1.7 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:
4.1 days - Average snowfall days in December:
11.3 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Ottawa, OH
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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 18min).
- Average sunshine in January:
3h and 2min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 4min - Average sunshine in April:
6h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
7h and 4min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 4min
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 18min).
Average sunshine days
Ottawa, OH
- Average sunshine days in January:
10.3 days - Average sunshine days in February:
9.3 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
10.5 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
16.2 days - Average sunshine days in December:
11.6 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is February (9.3 days).
Average UV index
Ottawa, OH
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Ottawa, OH
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
Ottawa, OH
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Ottawa, Ohio, USA
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