Marietta weather by month

Check out Marietta weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Marietta (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	37	43	54	66	73	82	86	84	77	66	55	43
Min temperature (night-time)	21	23	32	41	50	59	64	63	55	43	36	27
Heat & Humidity	0	0	0	0	0	M	M	M	L	0	0	0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Marietta

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	4	5	6	7	8	8	8	8	7	6	4	3
Daily hours of daylight	10	11	12	13	14	15	15	14	12	11	10	9
UV Index (Maximum)	2	3	5	6	8	9	9	8	7	4	2	2

Rainfall in Marietta

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	15	14	15	14	13	11	12	10	10	10	13	15
Average monthly rainfall (inches)	2.7	2.6	3.8	3.5	3.9	3.7	4.3	4.1	3.1	2.8	3.2	3.1

More about Marietta

Marietta by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Ohio (Marietta) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Marietta?

Marietta has a cold climate with hot summers and some rainfall in all months.

Marietta weather in January

Expect daytime maximum temperatures of 37°F in Marietta, Ohio in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 15 days with some rainfall and typically 2.7 inches of rainfall in the month, which might fall as snow.

37
37°F max day temperature
4
4 hours of sunshine per day
15
15 days with some rainfall
21
21°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
2.7
2.7 inches of monthly rainfall
2
2 (Low) UV index

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Marietta weather in February

Expect daytime maximum temperatures of 43°F in Marietta, Ohio in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 2.6 inches of rainfall in the month, which might fall as snow.

43
43°F max day temperature
5
5 hours of sunshine per day
14
14 days with some rainfall
23
23°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
2.6
2.6 inches of monthly rainfall
3
3 (Moderate) UV index

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Marietta weather in March

Expect daytime maximum temperatures of 54°F in Marietta, Ohio in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 15 days with some rainfall and typically 3.8 inches of rainfall in the month.

54
54°F max day temperature
6
6 hours of sunshine per day
15
15 days with some rainfall
32
32°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.8
3.8 inches of monthly rainfall
5
5 (Moderate) UV index

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Marietta weather in April

Expect daytime maximum temperatures of 66°F in Marietta, Ohio in April based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 3.5 inches of rainfall in the month.

66
66°F max day temperature
7
7 hours of sunshine per day
14
14 days with some rainfall
41
41°F min night temperature
13
13 hours of daylight per day
0
No heat & humidity
3.5
3.5 inches of monthly rainfall
6
6 (High) UV index

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Marietta weather in May

Expect daytime maximum temperatures of 73°F in Marietta, Ohio in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 3.9 inches of rainfall in the month.

73
73°F max day temperature
8
8 hours of sunshine per day
13
13 days with some rainfall
50
50°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
3.9
3.9 inches of monthly rainfall
8
8 (Very High) UV index

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Marietta weather in June

Expect daytime maximum temperatures of 82°F in Marietta, Ohio in June based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 3.7 inches of rainfall in the month.

82
82°F max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
59
59°F min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
3.7
3.7 inches of monthly rainfall
9
9 (Very High) UV index

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Marietta weather in July

Expect daytime maximum temperatures of 86°F in Marietta, Ohio in July based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 4.3 inches of rainfall in the month.

86
86°F max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
64
64°F min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
4.3
4.3 inches of monthly rainfall
9
9 (Very High) UV index

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Marietta weather in August

Expect daytime maximum temperatures of 84°F in Marietta, Ohio in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 4.1 inches of rainfall in the month.

84
84°F max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
63
63°F min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
4.1
4.1 inches of monthly rainfall
8
8 (Very High) UV index

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Marietta weather in September

Expect daytime maximum temperatures of 77°F in Marietta, Ohio in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 10 days with some rainfall and typically 3.1 inches of rainfall in the month.

77
77°F max day temperature
7
7 hours of sunshine per day
10
10 days with some rainfall
55
55°F min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
3.1
3.1 inches of monthly rainfall
7
7 (High) UV index

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Marietta weather in October

Expect daytime maximum temperatures of 66°F in Marietta, Ohio in October based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 2.8 inches of rainfall in the month.

66
66°F max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
43
43°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
2.8
2.8 inches of monthly rainfall
4
4 (Moderate) UV index

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Marietta weather in November

Expect daytime maximum temperatures of 55°F in Marietta, Ohio in November based on long-term weather averages. There are 4 hours of sunshine per day on average with 13 days with some rainfall and typically 3.2 inches of rainfall in the month.

55
55°F max day temperature
4
4 hours of sunshine per day
13
13 days with some rainfall
36
36°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
3.2
3.2 inches of monthly rainfall
2
2 (Low) UV index

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Marietta weather in December

Expect daytime maximum temperatures of 43°F in Marietta, Ohio in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 15 days with some rainfall and typically 3.1 inches of rainfall in the month.