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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 Helena, Ohio, is another subzero cold winter month, with an average temperature varying between 19.9°F (-6.7°C) and 30.7°F (-0.7°C). Helena's January weather reaches an average high of 30.7°F (-0.7°C) and an average low of 19.9°F (-6.7°C), making it the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Helena, is a cold month, with an average temperature fluctuating between 34.2°F (1.2°C) and 22.3°F (-5.4°C). The onset of February manifests an average high-temperature of an icy 34.2°F (1.2°C), demonstrating a minor variation from the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Helena, Ohio, with an average temperature fluctuating between 31.3°F (-0.4°C) and 44.2°F (6.8°C). March's arrival coincides with a temperature rise, moving from February's icy 34.2°F (1.2°C) to a frosty 44.2°F (6.8°C). Weather in March »
Weather in April
April in Helena, Ohio, is a moderate spring month, with an average temperature ranging between max 55.9°F (13.3°C) and min 40.8°F (4.9°C). April's arrival signals a temperature shift, moving from a frosty 44.2°F (6.8°C) in March to a refreshing 55.9°F (13.3°C). Weather in April »
Weather in May
May, the last month of the spring in Helena, is a pleasant month, with an average temperature varying between 52.3°F (11.3°C) and 68°F (20°C). Helena's May weather brings a rise in high-temperatures, moving from a moderate 55.9°F (13.3°C) in April to a pleasant 68°F (20°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Helena, Ohio, with an average temperature ranging between max 76.3°F (24.6°C) and min 60.4°F (15.8°C). Observing a minor shift, the average high-temperature during June adjusts from May's agreeable 68°F (20°C) to a warm 76.3°F (24.6°C). Weather in June »
Weather in July
July, like June, in Helena, Ohio, is a moderately hot summer month, with an average temperature ranging between min 64°F (17.8°C) and max 80.1°F (26.7°C). With average temperatures fluctuating between a high of 80.1°F (26.7°C) and a low of 64°F (17.8°C), July stands out as the warmest month. Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Helena, Ohio, with an average temperature ranging between min 62.8°F (17.1°C) and max 77.7°F (25.4°C). The advent of August brings an average high-temperature of a still moderately hot 77.7°F (25.4°C), almost identical to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Helena, Ohio, with an average temperature fluctuating between 57°F (13.9°C) and 72.9°F (22.7°C). With the onset of September, a modest change to an agreeable 72.9°F (22.7°C) from August's 77.7°F (25.4°C) is noted in high-temperature. Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Helena, Ohio, with an average temperature varying between 60.8°F (16°C) and 47.5°F (8.6°C). As Helena enters October, the average high-temperature decreases from the an agreeable 72.9°F (22.7°C) of September to a refreshing 60.8°F (16°C). Weather in October »
Weather in November
November, the last month of the autumn in Helena, is another chilly month, with an average temperature varying between 47.3°F (8.5°C) and 36.1°F (2.3°C). With November's onset, the average high-temperature recedes from October's enjoyable 60.8°F (16°C) to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
December, the first month of the winter in Helena, is also a wintry month, with temperature in the range of an average high of 36.7°F (2.6°C) and an average low of 27.9°F (-2.3°C). As Helena enters December, the average high-temperature decreases from the a frosty 47.3°F (8.5°C) of November to a wintry 36.7°F (2.6°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 part of the year is the coldest in Helena?
Helena experiences its average lowest temperatures in January, reaching a peak of 30.7°F (-0.7°C) and a minimum of 19.9°F (-6.7°C).
What is the most humid month in Helena?
January and February, with an average relative humidity of 84%, are most humid months.
How many days does it rain in Helena?
In Helena, Ohio, during the entire year, the rain falls for 163.4 days and collects up to 30.28" (769mm) of precipitation.
When does it snow in Helena?
Months with snowfall are January through May, October through December.
How many days does it snow in Helena?
In Helena, Ohio, during the entire year, snow falls for 45.1 days and aggregates up to 14.02" (356mm) of snow.
What is the month with the least sunshine in Helena?
January has the least sunshine of the year, with an average of 3.4h of sunshine.
What is the driest month in Helena?
February is the month with the least rainfall in Helena. Rain falls for 7.2 days and accumulates 1.65" (42mm) of precipitation.
When does it snow the most in Helena?
February is the month with the most snowfall in Helena. Snow falls for 10.8 days and accumulates 4.13" (105mm) of snow.
When is Daylight Saving Time (DST) in Helena?
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 is the wettest month in Helena?
The wettest months are May and June, with an average 3.5" (89mm) of rainfall.
When it does not snow in Helena?
June through September are months without snowfall in Helena, Ohio.
When are the longest days in Helena?
With an average of 15h and 6min of daylight, June has the longest days of the year in Helena, Ohio.
When is the highest UV index in Helena?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the warmest month in Helena?
The warmest month in Helena, Ohio, is July, with an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 64°F (17.8°C).
What month has the most sunshine in Helena?
The month with the most sunshine in Helena, Ohio, is July, with an average of 10.3h of sunshine.
What is the least humid month in Helena?
October is the least humid month in Helena, with an average relative humidity of 74%.
What is the month with the shortest days in Helena?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Helena.
What is the month with the lowest UV index in Helena?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Helena, OH
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (30.7°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure
Helena, 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:
29.97"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:
30.11"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
Helena, OH
- Average wind speed in January:
10.9mph - Average wind speed in February:
10.3mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.3mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity
Helena, OH
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Helena, OH
- Average rainfall in January:
1.93" - Average rainfall in February:
1.65" - Average rainfall in March:
2.32" - Average rainfall in April:
3.39" - Average rainfall in May:
3.5" - Average rainfall in June:
3.5"
- Average rainfall in July:
3.11" - Average rainfall in August:
2.91" - Average rainfall in September:
2.09" - Average rainfall in October:
2.17" - Average rainfall in November:
2.01" - Average rainfall in December:
1.69"
The wettest months (with the highest rainfall) are May and June (3.5").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days
Helena, OH
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
7.2 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
17.7 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (7.2 days).
Average snowfall
Helena, OH
- Average snowfall in January:
3.31" - Average snowfall in February:
4.13" - Average snowfall in March:
1.46" - Average snowfall in April:
1.02" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Helena, OH
- Average snowfall days in January:
12.8 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
5.6 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:
0.4 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
9.9 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Helena, 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 2min - 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:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 1min - 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: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days
Helena, OH
- Average sunshine days in January:
11.7 days - Average sunshine days in February:
10.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
10.7 days - Average sunshine days in August:
12.2 days - Average sunshine days in September:
13.4 days - Average sunshine days in October:
15.1 days - Average sunshine days in November:
15.5 days - Average sunshine days in December:
12.9 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (10.3 days).
Average UV index
Helena, OH
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Helena, OH
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Helena, 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).
Helena, Ohio, USA
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