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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, in Marietta, Indiana, is an icy winter month, with an average temperature fluctuating between 22.5°F (-5.3°C) and 35.1°F (1.7°C). Marietta's coldest month, January, registers temperatures that range from a high of 35.1°F (1.7°C) to a low of 22.5°F (-5.3°C). Weather in January »
Weather in February
February, the last month of the winter in Marietta, is also a wintry month, with an average temperature varying between 39.6°F (4.2°C) and 25.7°F (-3.5°C). The advent of February reveals an average high-temperature of a still cold 39.6°F (4.2°C), showing minimal difference from the prior month. Weather in February »
Weather in March
March, the first month of the spring in Marietta, is a fresh month, with an average temperature fluctuating between 50.9°F (10.5°C) and 35.4°F (1.9°C). March's onset witnesses a shift in the average high-temperature, moving from an icy 39.6°F (4.2°C) in February to a fresh 50.9°F (10.5°C). Weather in March »
Weather in April
April is an enjoyable spring month in Marietta, Indiana, with an average temperature ranging between min 45.9°F (7.7°C) and max 63°F (17.2°C). April marks a rise in the average high-temperature, moving from March's fresh 50.9°F (10.5°C) to a refreshing 63°F (17.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Marietta, Indiana, with an average temperature fluctuating between 55.9°F (13.3°C) and 72.9°F (22.7°C). The arrival of May brings a change in Marietta's weather, with average high-temperatures moving from April's comfortable 63°F (17.2°C) to an agreeable 72.9°F (22.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Marietta, Indiana, with an average temperature varying between 80.6°F (27°C) and 63.5°F (17.5°C). Marietta's June weather indicates a minor ascent in high-temperatures, adjusting from a pleasant 72.9°F (22.7°C) in May to a moderately hot 80.6°F (27°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Marietta, Indiana, with an average temperature varying between 83.1°F (28.4°C) and 65.3°F (18.5°C). July temperatures tend to peak at an average high of 83.1°F (28.4°C) and dip to a low of 65.3°F (18.5°C). The heat index in July is estimated at a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Marietta, Indiana, with an average temperature fluctuating between 63.1°F (17.3°C) and 82°F (27.8°C). The average high-temperature in August, at a still warm 82°F (27.8°C), reveals a modest deviation from July's 83.1°F (28.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Marietta, Indiana, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 58.1°F (14.5°C). The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 82°F (27.8°C) in August to a still warm 76.5°F (24.7°C). Weather in September »
Weather in October
October, like September, in Marietta, Indiana, is another refreshing autumn month, with an average temperature ranging between max 64.4°F (18°C) and min 47.3°F (8.5°C). As Marietta enters October, the average high-temperature decreases from the a warm 76.5°F (24.7°C) of September to an enjoyable 64.4°F (18°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Marietta, Indiana, with an average temperature ranging between max 50.7°F (10.4°C) and min 36.5°F (2.5°C). Setting in of November comes with a decrease in the average high-temperature, moving from a comfortable 64.4°F (18°C) in October to a cool 50.7°F (10.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Marietta, Indiana, with an average temperature ranging between min 29.3°F (-1.5°C) and max 40.1°F (4.5°C). The move into December indicates a reduction in the average high-temperature, down from November's fresh 50.7°F (10.4°C) to an icy 40.1°F (4.5°C). Weather in December »
Updated: Jun 28, 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?
January, characterized by an average high temperature of 35.1°F (1.7°C) and a low temperature of 22.5°F (-5.3°C), is generally the coldest month.
How many days does it rain?
Throughout the year, there are 149.3 rainfall days, and 25.83" (656mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, October through December.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 8 days and typically aggregates up to 2.4" (61mm) of snow.
How many days does it snow?
In Marietta, during the entire year, snow falls for 28.6 days and aggregates up to 8.15" (207mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.1h of sunshine.
What are the months with the lowest UV index?
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
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?
The month with the most rainfall is May, when the rain falls for 17.6 days and typically aggregates up to 3.19" (81mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
The month with the longest days in Marietta is June, with an average of 14h and 54min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Marietta, Indiana.
What month is the hottest?
In Marietta, the peak average temperatures are observed in July, with a high of 83.1°F (28.4°C) and a low of 65.3°F (18.5°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.2h of sunshine.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 12.3 days and typically collects 1.57" (40mm) of precipitation.
What is the least humid month?
October is the least humid month, with an average relative humidity of 74%.
What is the most humid month?
With an average relative humidity of 82%, December is the most humid month.
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 in Marietta.
Average temperature
Marietta, IN
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.1°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Marietta, IN
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Marietta, IN
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.1mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.3mph - Average wind speed in September:
6mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.3mph
The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity
Marietta, IN
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Marietta, IN
- Average rainfall in January:
1.73" - Average rainfall in February:
1.73" - Average rainfall in March:
2.2" - Average rainfall in April:
2.8" - Average rainfall in May:
3.19" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.56" - Average rainfall in August:
1.89" - Average rainfall in September:
1.57" - Average rainfall in October:
1.89" - Average rainfall in November:
1.73" - Average rainfall in December:
1.85"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days
Marietta, IN
- Average rainfall days in January:
8.1 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
17.6 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
11.6 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall
Marietta, IN
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Marietta, IN
- Average snowfall days in January:
8 days - Average snowfall days in February:
6.4 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
0.6 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:
0.3 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Marietta, IN
- 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:
4h and 1min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 3min - Average sunshine in September:
8h and 2min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Marietta, IN
- Average sunshine days in January:
16.1 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
13 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index
Marietta, IN
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, October, November and December (UV index 2).
Average cloud cover
Marietta, IN
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Marietta, IN
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Marietta, Indiana, USA
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