Climate and monthly weather forecast
Costonia, OH

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Weather in January

January, like December, in Costonia, Ohio, is another cold winter month, with an average temperature ranging between max 33.1°F (0.6°C) and min 20.3°F (-6.5°C). January, on average, is the coldest month, registering a high temperature of 33.1°F (0.6°C) and a low of 20.3°F (-6.5°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Costonia, Ohio, with an average temperature varying between 22.6°F (-5.2°C) and 37°F (2.8°C). The shift to February signals an average high-temperature of a still icy 37°F (2.8°C), subtly varied from January's 33.1°F (0.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Costonia, Ohio, with temperature in the range of an average high of 47.3°F (8.5°C) and an average low of 30.9°F (-0.6°C). The start of March signals an increase in the average high-temperature, moving from a wintry 37°F (2.8°C) in February to a frosty 47.3°F (8.5°C). Weather in March »

Weather in April

April in Costonia, Ohio, is a mild spring month, with an average temperature ranging between min 40.6°F (4.8°C) and max 60.1°F (15.6°C). With the arrival of April, the average high-temperature transitions from a chilly 47.3°F (8.5°C) in March to a refreshing 60.1°F (15.6°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Costonia, Ohio, with an average temperature fluctuating between 50.5°F (10.3°C) and 72.1°F (22.3°C). As May begins, there is an increase in the average high-temperature, moving from a refreshing 60.1°F (15.6°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Costonia, Ohio, with temperature in the range of an average high of 78.8°F (26°C) and an average low of 57.6°F (14.2°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from an agreeable 72.1°F (22.3°C) in May to a moderately hot 78.8°F (26°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Costonia, Ohio, with an average temperature fluctuating between 83.3°F (28.5°C) and 61.3°F (16.3°C). July is the month when Costonia's temperatures reach their peak, with averages of 83.3°F (28.5°C) and lows of 61.3°F (16.3°C). The heat index in July is appraised at a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Costonia, is another warm month, with an average temperature fluctuating between 59.9°F (15.5°C) and 81.9°F (27.7°C). Costonia observes a minor difference in average high-temperatures between July's 83.3°F (28.5°C) and August's 81.9°F (27.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Costonia, Ohio, with an average temperature ranging between min 55°F (12.8°C) and max 75.2°F (24°C). September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 81.9°F (27.7°C) to a still warm 75.2°F (24°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Costonia, Ohio, with an average temperature fluctuating between 45°F (7.2°C) and 61.9°F (16.6°C). In Costonia, entering October brings a temperature decrement, reducing from September's moderately hot 75.2°F (24°C) to a refreshing 61.9°F (16.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Costonia, Ohio, with an average temperature varying between 33.8°F (1°C) and 49.1°F (9.5°C). With November's onset, the average high-temperature recedes from October's refreshing 61.9°F (16.6°C) to a chilly 49.1°F (9.5°C). Weather in November »

Weather in December

December, the first month of the winter in Costonia, is still a cold month, with an average temperature varying between 28°F (-2.2°C) and 39.6°F (4.2°C). Start of December brings a shift in the average high-temperature, falling from November's chilly 49.1°F (9.5°C) to a cold 39.6°F (4.2°C). Weather in December »
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

Temperature records mark January as the coldest month, with highs averaging 33.1°F (0.6°C) and lows at 20.3°F (-6.5°C).

How many days does it rain?

Throughout the year, there are 175.9 rainfall days, and 31.22" (793mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 15.5 days and accumulates 5" (127mm) of snow.

How many days does it snow?

In Costonia, during the entire year, snow falls for 56.5 days and aggregates up to 19.41" (493mm) of snow.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 2.9h of sunshine.

What is the most humid month?

With an average relative humidity of 85%, February is the most humid month.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 are the least humid months?

April, July and August, with an average relative humidity of 77%, are the least humid months.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 20.5 days and accumulates 3.19" (81mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

With an average of 15h and 0min of daylight, June has the longest days of the year.

What is the month with the highest UV index?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What are the warmest months?

Costonia's warmest month, July, generally records average temperatures ranging from a high of 83.3°F (28.5°C) to a low of 61.3°F (16.3°C).

What are the months with the most sunshine?

The months with the most sunshine are July and August, with an average of 10h of sunshine.

What is the driest month in Costonia?

The month with the least rainfall is November, when the rain falls for 11.1 days and typically collects 2.17" (55mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 1.

Average temperature
Costonia, OH

Average temperature - Costonia, OH

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.1°F).

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure
Costonia, OH

Average pressure - Costonia, OH

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Costonia, OH

Average wind speed - Costonia, OH

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity
Costonia, OH

Average humidity - Costonia, OH

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall
Costonia, OH

Average rainfall - Costonia, OH

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days
Costonia, OH

Average rainfall days - Costonia, OH

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.4 days).

Average snowfall
Costonia, OH

Average snowfall - Costonia, OH

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Costonia, OH

Average snowfall days - Costonia, OH

The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Costonia, OH

Average daylight / Average sunshine - Costonia, OH

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days
Costonia, OH

Average sunshine days - Costonia, OH

The month with the most sunshine days is November (15.5 days).
The months with the least sunshine days are January and May (8.8 days).

Average visibility
Costonia, OH

Average visibility - Costonia, OH

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).

Costonia, Ohio, USA

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