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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, the same as December, in Castalia, Ohio, is a freezing cold winter month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 21.6°F (-5.8°C). Castalia notes the coldest temperatures in January, with a high average of 30.7°F (-0.7°C) and a low of 21.6°F (-5.8°C). Weather in January »
Weather in February
February, the last month of the winter in Castalia, is a wintry month, with an average temperature varying between 33.1°F (0.6°C) and 23.4°F (-4.8°C). With the onset of February, the average high-temperature stands at a wintry 33.1°F (0.6°C), closely aligned with January's 30.7°F (-0.7°C). Weather in February »
Weather in March
The first month of the spring, March, is also a wintry month in Castalia, Ohio, with an average temperature ranging between min 31.1°F (-0.5°C) and max 40.8°F (4.9°C). March signals a minor shift in the average high-temperature, moving from February's wintry 33.1°F (0.6°C) to a still cold 40.8°F (4.9°C). Weather in March »
Weather in April
April is a cool spring month in Castalia, Ohio, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 50.5°F (10.3°C). The transition to April introduces an increase in the average high-temperature, shifting from a cold 40.8°F (4.9°C) in March to a cool 50.5°F (10.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Castalia, Ohio, with temperature in the range of an average low of 51.4°F (10.8°C) and an average high of 61.3°F (16.3°C). In Castalia, stepping into May brings a temperature increase, moving up from April's cool 50.5°F (10.3°C) to an enjoyable 61.3°F (16.3°C). Weather in May »
Weather in June
June, the first month of the summer in Castalia, is an agreeable month, with an average temperature ranging between max 71.2°F (21.8°C) and min 60.6°F (15.9°C). The arrival of June sees a shift in the average high-temperature, moving from an enjoyable 61.3°F (16.3°C) in May to an agreeable 71.2°F (21.8°C). Weather in June »
Weather in July
July is a warm summer month in Castalia, Ohio, with temperature in the range of an average low of 66.9°F (19.4°C) and an average high of 77.2°F (25.1°C). July, known for its average high temperature of 77.2°F (25.1°C) and an average low temperature of 66.9°F (19.4°C), is the warmest month. Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Castalia, Ohio, with an average temperature ranging between min 66.4°F (19.1°C) and max 75.7°F (24.3°C). The shift from July to August is characterized by an average high-temperature of a still moderately hot 75.7°F (24.3°C), not significantly different from the 77.2°F (25.1°C) of July. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Castalia, Ohio, with an average temperature fluctuating between 70.7°F (21.5°C) and 61°F (16.1°C). September denotes a minimal variation in the average high-temperature to a pleasant 70.7°F (21.5°C) from August's 75.7°F (24.3°C). Weather in September »
Weather in October
October, the same as September, in Castalia, Ohio, is another mild autumn month, with an average temperature fluctuating between 50°F (10°C) and 59.9°F (15.5°C). The onset of October comes with a shift in the average high-temperature, falling from a pleasant 70.7°F (21.5°C) in September to a refreshing 59.9°F (15.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Castalia, is also a frosty month, with an average temperature fluctuating between 47.1°F (8.4°C) and 38.5°F (3.6°C). November comes with a drop in the average high-temperature, falling from October's mild 59.9°F (15.5°C) to a chilly 47.1°F (8.4°C). Weather in November »
Weather in December
December, the first month of the winter in Castalia, is also an icy month, with an average temperature ranging between min 30°F (-1.1°C) and max 37°F (2.8°C). As November transitions into December, Castalia sees a drop in the average high-temperature, transitioning from a frosty 47.1°F (8.4°C) to a cold 37°F (2.8°C). Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Castalia?
January, having an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 21.6°F (-5.8°C), is the coldest month in Castalia, Ohio.
How much does it rain in Castalia?
In Castalia, during the entire year, the rain falls for 160.4 days and collects up to 32.99" (838mm) of precipitation.
When does it snow in Castalia?
January through April, November and December are months with snowfall in Castalia.
How many days does it snow in Castalia?
Throughout the year, in Castalia, there are 41.3 snowfall days, and 10.87" (276mm) of snow is accumulated.
What is the month with the least sunshine in Castalia?
With an average of 3.2h of sunshine, January has the least sunshine of the year in Castalia.
What is the most humid month in Castalia?
With an average relative humidity of 84%, February is the most humid month in Castalia, Ohio.
What is the driest month in Castalia?
February and December are months with the least rain in Castalia, Ohio, when the rain falls for 7.8 days and typically aggregates up to 1.61" (41mm) of rain.
What is the snowiest month in Castalia?
The month with the most snowfall in Castalia is February, when snow falls for 10.4 days and typically aggregates up to 3.5" (89mm) of snow.
When is Daylight Saving Time (DST) in Castalia?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Castalia, Ohio, 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.
When it does not snow in Castalia?
May through October are months without snowfall in Castalia.
What is the wettest month in Castalia?
The month with the most rainfall is June, when the rain falls for 16.6 days and typically aggregates up to 4.41" (112mm) of precipitation.
When are the longest days in Castalia?
The month with the longest days in Castalia, Ohio, is June, with an average of 15h and 6min of daylight.
When is the highest UV index in Castalia?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What are the warmest months in Castalia?
July is the month when Castalia sees the average highest temperatures, with a high of 77.2°F (25.1°C) and a low of 66.9°F (19.4°C).
What month has the most sunshine in Castalia?
With an average of 10.6h of sunshine, July has the most sunshine of the year in Castalia.
What are the least humid months in Castalia?
October and November, with an average relative humidity of 75%, are the least humid months.
What is the month with the shortest days in Castalia?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Castalia, Ohio.
When is the lowest UV index in Castalia?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Castalia, OH
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (30.7°F).
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Castalia, OH
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.08"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:
29.96"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:
30.11"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Castalia, OH
- Average wind speed in January:
12.6mph - Average wind speed in February:
11.6mph - Average wind speed in March:
10.9mph - Average wind speed in April:
11.1mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.8mph
- Average wind speed in July:
7.7mph - Average wind speed in August:
8.1mph - Average wind speed in September:
9.3mph - Average wind speed in October:
11.8mph - Average wind speed in November:
12.5mph - Average wind speed in December:
12.4mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity
Castalia, OH
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall
Castalia, OH
- Average rainfall in January:
1.89" - Average rainfall in February:
1.61" - Average rainfall in March:
2.2" - Average rainfall in April:
3.27" - Average rainfall in May:
4.21" - Average rainfall in June:
4.41"
- Average rainfall in July:
3.35" - Average rainfall in August:
3.27" - Average rainfall in September:
2.52" - Average rainfall in October:
2.6" - Average rainfall in November:
2.05" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is June (4.41").
The driest months (with the least rainfall) are February and December (1.61").
Average rainfall days
Castalia, OH
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
12 days - Average rainfall days in April:
16.2 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
15.2 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
14.9 days - Average rainfall days in November:
11.6 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is May (17.8 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall
Castalia, OH
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Castalia, OH
- Average snowfall days in January:
12.6 days - Average snowfall days in February:
10.4 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
1.2 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 days - Average snowfall days in November:
3.7 days - Average snowfall days in December:
7.7 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Castalia, 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 1min
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 12min).
- Average sunshine in January:
3h and 1min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 3min - Average sunshine in September:
8h and 1min - Average sunshine in October:
5h and 5min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days
Castalia, OH
- Average sunshine days in January:
10.5 days - Average sunshine days in February:
9.6 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
12.2 days - Average sunshine days in August:
12.1 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
13 days - Average sunshine days in December:
11.3 days
The month with the most sunshine days is March (14.1 days).
The month with the least sunshine days is February (9.6 days).
Average UV index
Castalia, 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
Castalia, OH
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility
Castalia, OH
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Castalia, Ohio, USA
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