Climate and monthly weather forecast
Marietta, NY

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Weather in January

January, like December, is another subzero cold winter month in Marietta, New York, with an average temperature varying between 16.9°F (-8.4°C) and 27.9°F (-2.3°C). In Marietta, January records the lowest average temperatures, peaking at 27.9°F (-2.3°C) and reaching a low of 16.9°F (-8.4°C). Weather in January »

Weather in February

February, the last month of the winter in Marietta, is also a subzero cold month, with an average temperature varying between 18.5°F (-7.5°C) and 30.7°F (-0.7°C). February records an average high-temperature of a still subzero cold 30.7°F (-0.7°C), indicating a minor variation from the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is an icy month in Marietta, New York, with an average temperature varying between 39.6°F (4.2°C) and 25.7°F (-3.5°C). The shift from February to March introduces a subtle increase in the average high-temperature, moving from a subzero cold 30.7°F (-0.7°C) to an icy 39.6°F (4.2°C). Weather in March »

Weather in April

April is a cool spring month in Marietta, New York, with an average temperature varying between 52.5°F (11.4°C) and 36°F (2.2°C). April's onset brings a rise in the average high-temperature, moving from an icy 39.6°F (4.2°C) in March to a cool 52.5°F (11.4°C). Weather in April »

Weather in May

May, the last month of the spring in Marietta, is a refreshing month, with temperature in the range of an average high of 66.4°F (19.1°C) and an average low of 46.9°F (8.3°C). As May begins, there is an increase in the average high-temperature, moving from a cool 52.5°F (11.4°C) in April to a comfortable 66.4°F (19.1°C). Weather in May »

Weather in June

June, the first month of the summer in Marietta, is an agreeable month, with an average temperature fluctuating between 72.3°F (22.4°C) and 53.4°F (11.9°C). The shift into June brings a slight increase in the average high-temperature, moving from a refreshing 66.4°F (19.1°C) in May to an agreeable 72.3°F (22.4°C). Weather in June »

Weather in July

July is a warm summer month in Marietta, New York, with an average temperature varying between 59°F (15°C) and 78.4°F (25.8°C). July, noted for its average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 59°F (15°C), is considered the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Marietta, is also a moderately hot month, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 57.7°F (14.3°C). The transition from July to August sees average high-temperatures adjusting to a still moderately hot 76.5°F (24.7°C), from a not significantly different 78.4°F (25.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Marietta, New York, with an average temperature ranging between max 70.2°F (21.2°C) and min 51.6°F (10.9°C). With September's onset, the weather reveals a slight temperature decrease, transitioning from a warm 76.5°F (24.7°C) in August to an agreeable 70.2°F (21.2°C). Weather in September »

Weather in October

October, the same as September, in Marietta, New York, is a moderate autumn month, with an average temperature ranging between max 57.4°F (14.1°C) and min 43.2°F (6.2°C). As Marietta enters October, the average high-temperature decreases from the a pleasant 70.2°F (21.2°C) of September to a mild 57.4°F (14.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Marietta, New York, with an average temperature ranging between min 32.4°F (0.2°C) and max 44.6°F (7°C). Marietta's average high-temperature decreases in November, falling from a moderate 57.4°F (14.1°C) in October to a frosty 44.6°F (7°C). Weather in November »

Weather in December

December, the first month of the winter in Marietta, is also an icy month, with temperature in the range of an average low of 25.3°F (-3.7°C) and an average high of 34.3°F (1.3°C). In Marietta, the average high-temperature in December drops from a frosty 44.6°F (7°C) in November to a wintry 34.3°F (1.3°C). Weather in December »

Frequently asked questions

What is the coldest time of year?

Marietta records the coldest temperatures in January, averaging a high of 27.9°F (-2.3°C) and a low of 16.9°F (-8.4°C).

How many days does it rain?

Throughout the year, there are 137.8 rainfall days, and 13.74" (349mm) of precipitation is accumulated.

When does it snow in Marietta?

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

How many days does it snow?

Throughout the year, in Marietta, there are 76.2 snowfall days, and 16.93" (430mm) of snow is accumulated.

What is the most humid month?

The most humid month is February, with an average relative humidity of 88%.

What is the snowiest month?

February is the month with the most snowfall in Marietta. Snow falls for 17.3 days and accumulates 3.74" (95mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 2.5h of sunshine.

When is the lowest UV index?

The months with the lowest UV index are February and December, with an average maximum UV index of 1.

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 least humid month?

The months with the lowest humidity are April and May, with an average relative humidity of 79%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 14.7 days and typically aggregates up to 1.5" (38mm) of precipitation.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 15h and 18min of daylight.

What part of the year is the hottest?

The average temperatures reach their apex in July, averaging 78.4°F (25.8°C) at the high end and 59°F (15°C) at the low end.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.4h of sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 10.5 days and typically collects 0.67" (17mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

Average temperature
Marietta, NY

Average temperature - Marietta, NY

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure
Marietta, NY

Average pressure - Marietta, NY

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Marietta, NY

Average wind speed - Marietta, NY

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

Average humidity
Marietta, NY

Average humidity - Marietta, NY

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).

Average rainfall
Marietta, NY

Average rainfall - Marietta, NY

The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is September (0.67").

Average rainfall days
Marietta, NY

Average rainfall days - Marietta, NY

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (6.7 days).

Average snowfall
Marietta, NY

Average snowfall - Marietta, NY

The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Marietta, NY

Average snowfall days - Marietta, NY

The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Marietta, NY

Average daylight / Average sunshine - Marietta, NY

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

Average sunshine days
Marietta, NY

Average sunshine days - Marietta, NY

The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is February (7.9 days).

Average UV index
Marietta, NY

Average UV index - Marietta, NY

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

Average visibility
Marietta, NY

Average visibility - Marietta, NY

The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).

Marietta, New York, USA

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