Marietta, PA Weather


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The most pleasant months of the year for Marietta are September, June and May. In Marietta, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Marietta with an average high temperature of 85.6°, which ranks it as one of the hottest places in Pennsylvania. February is the snowiest month in Marietta with 8.3 inches of snow, and 5 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - Marietta, PA

3 PM PST

Partly Cloudy then Areas Of Frost

58°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightPartly Cloudy then Areas Of Frost36° / 63°SE 1 to 5 mph
Friday NightPartly Cloudy42° / 60°SE 6 to 12 mph
Saturday NightMostly Cloudy50° / 81°S 6 to 13 mph
Sunday NightPartly Cloudy58° / 86°SW 5 to 9 mph
Monday NightPartly Cloudy61° / 82°S 8 mph
Tuesday NightChance Showers And Thunderstorms59° / 79°W 7 to 13 mph
Wednesday NightSlight Chance Showers And Thunderstorms57° / 75°W 10 mph

Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 22
Rain: averages 42 inches of rain a year
Snow: averages 24 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Marietta area is 8.7 (10=best), which means it is more comfortable than most places in Pennsylvania.

8.7 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January38° 22°
February42° 24°
March51° 31°
April63° 40°
May73° 50°
June82° 60°
July86° 64°
August84° 62°
September77° 55°
October65° 43°
November54° 35°
December42° 26°
Hot, Freezing, Rainy, Snowy Days: Marietta
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January026104
February02394
March017102
April05110
May10120
June30110
July70110
August4090
September1090
October0390
November012101
December024102

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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