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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, is a wintry winter month in Marietta, Ohio, with an average temperature fluctuating between 22.8°F (-5.1°C) and 36.1°F (2.3°C). Marietta's temperature records reveal January as the coldest month, marked by average highs of 36.1°F (2.3°C) and lows of 22.8°F (-5.1°C). Weather in January »
Weather in February
February, the last month of the winter in Marietta, is another cold month, with an average temperature ranging between max 40.6°F (4.8°C) and min 26.1°F (-3.3°C). February registers an average high-temperature of a still wintry 40.6°F (4.8°C), slightly varied from January's 36.1°F (2.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Marietta, Ohio, with temperature in the range of an average low of 34.2°F (1.2°C) and an average high of 51.1°F (10.6°C). Marietta sees a rise in temperature during March, with average high-temperatures transitioning from a wintry 40.6°F (4.8°C) in February to a cool 51.1°F (10.6°C). Weather in March »
Weather in April
April is a comfortable spring month in Marietta, Ohio, with an average temperature ranging between max 63.3°F (17.4°C) and min 43.5°F (6.4°C). Marietta's transition into April is marked by a rise in the average high-temperature, advancing from a cool 51.1°F (10.6°C) in March to a refreshing 63.3°F (17.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Marietta, Ohio, with an average temperature ranging between max 74.1°F (23.4°C) and min 53.2°F (11.8°C). The onset of May marks an increase in the average high-temperature, moving from a comfortable 63.3°F (17.4°C) in April to a warm 74.1°F (23.4°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Marietta, Ohio, with temperature in the range of an average low of 59.7°F (15.4°C) and an average high of 81.1°F (27.3°C). Marietta observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's 74.1°F (23.4°C) to a still moderately hot 81.1°F (27.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Marietta, Ohio, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 63.1°F (17.3°C). July, with average temperatures reaching a high of 85.6°F (29.8°C) and a low of 63.1°F (17.3°C), is the warmest month. For July, the heat index is appraised at a torrid 96.8°F (36°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Marietta, Ohio, with an average temperature ranging between min 61.3°F (16.3°C) and max 84.2°F (29°C). As Marietta transitions from July to August, the average high-temperatures adjust to a still moderately hot 84.2°F (29°C), nearly the same as the previous 85.6°F (29.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Marietta, Ohio, with an average temperature varying between 56.7°F (13.7°C) and 77.9°F (25.5°C). The onset of September is marked by a minor decrease in temperature, transitioning from a warm 84.2°F (29°C) in August to a still moderately hot 77.9°F (25.5°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Marietta, Ohio, with an average temperature fluctuating between 64.4°F (18°C) and 46°F (7.8°C). The shift from September to October involves a decrease in the average high-temperature, from a warm 77.9°F (25.5°C) to a comfortable 64.4°F (18°C). Weather in October »
Weather in November
November, the last month of the autumn in Marietta, is also a fresh month, with temperature in the range of an average high of 51.1°F (10.6°C) and an average low of 35.6°F (2°C). November's onset corresponds with a shift in the average high-temperature, moving from a comfortable 64.4°F (18°C) in October to a fresh 51.1°F (10.6°C). Weather in November »
Weather in December
December, the first month of the winter in Marietta, is also a wintry month, with an average temperature fluctuating between 41.7°F (5.4°C) and 30.4°F (-0.9°C). The arrival of December signals a shift in temperature, down from a fresh 51.1°F (10.6°C) in November to a wintry 41.7°F (5.4°C). Weather in December »
Updated: Jun 17, 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?
Marietta, Ohio, reaches its average lowest temperatures in January, measuring 36.1°F (2.3°C) at the peak and 22.8°F (-5.1°C) at the lowest.
What are the most humid months?
The months with the highest humidity are January and February, with an average relative humidity of 83%.
How many days does it rain in Marietta?
In Marietta, during the entire year, the rain falls for 156.1 days and collects up to 24.8" (630mm) of precipitation.
When does it snow?
Months with snowfall in Marietta are January through April, October through December.
How many days does it snow?
In Marietta, during the entire year, snow falls for 31.3 days and aggregates up to 9.37" (238mm) of snow.
What is the month with the least sunshine?
With an average of 3.4h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 8.6 days and typically aggregates up to 2.8" (71mm) of snow.
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 is the wettest month?
May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 3.19" (81mm) of precipitation.
When it does not snow in Marietta?
May through September are months without snowfall.
What is the least humid month?
The months with the lowest humidity are June through August, with an average relative humidity of 76%.
When are the longest days?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the warmest month?
Marietta's temperatures peak on average in July, reaching 85.6°F (29.8°C) at their highest and 63.1°F (17.3°C) at their lowest.
What month has the most sunshine?
August has the most sunshine of the year, with an average of 10.1h of sunshine.
What is the driest month?
September is the month with the least rainfall in Marietta. Rain falls for 12.5 days and accumulates 1.46" (37mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Marietta, OH
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.1°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure
Marietta, OH
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Marietta, OH
- Average wind speed in January:
6.7mph - Average wind speed in February:
6.8mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.6mph - Average wind speed in May:
5.5mph - Average wind speed in June:
5mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5.4mph - Average wind speed in November:
5.8mph - Average wind speed in December:
6.2mph
The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity
Marietta, OH
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, July and August (76%).
Average rainfall
Marietta, OH
- Average rainfall in January:
1.61" - Average rainfall in February:
2.13" - Average rainfall in March:
2.2" - Average rainfall in April:
2.52" - Average rainfall in May:
3.19" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.48" - Average rainfall in August:
1.73" - Average rainfall in September:
1.46" - Average rainfall in October:
1.57" - Average rainfall in November:
1.54" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days
Marietta, OH
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
14 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (8.4 days).
Average snowfall
Marietta, OH
The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Marietta, OH
- Average snowfall days in January:
9.5 days - Average snowfall days in February:
8.6 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0 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:
0.1 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.4 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Marietta, OH
- Average daylight in January:
9h and 5min - 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- 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 4min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days
Marietta, OH
- Average sunshine days in January:
14.7 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
11.7 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (9.8 days).
Average UV index
Marietta, OH
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Marietta, OH
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Marietta, OH
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Marietta, Ohio, USA
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