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 (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	3	6	12	19	23	28	30	29	25	19	13	6
Min temperature (night-time)	-6	-5	0	5	10	15	18	17	13	6	2	-3
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 (mm)	68	66	97	88	98	95	110	104	79	71	82	78

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 3°C 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 68 mm of rainfall in the month, which might fall as snow.

3
3°C max day temperature
4
4 hours of sunshine per day
15
15 days with some rainfall
-6
-6°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
68
68 mm of monthly rainfall
2
2 (Low) UV index

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Marietta weather in February

Expect daytime maximum temperatures of 6°C 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 66 mm of rainfall in the month, which might fall as snow.

6
6°C max day temperature
5
5 hours of sunshine per day
14
14 days with some rainfall
-5
-5°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
66
66 mm of monthly rainfall
3
3 (Moderate) UV index

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Marietta weather in March

Expect daytime maximum temperatures of 12°C 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 97 mm of rainfall in the month.

12
12°C max day temperature
6
6 hours of sunshine per day
15
15 days with some rainfall
0
0°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
97
97 mm of monthly rainfall
5
5 (Moderate) UV index

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Marietta weather in April

Expect daytime maximum temperatures of 19°C 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 88 mm of rainfall in the month.

19
19°C max day temperature
7
7 hours of sunshine per day
14
14 days with some rainfall
5
5°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
88
88 mm of monthly rainfall
6
6 (High) UV index

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Marietta weather in May

Expect daytime maximum temperatures of 23°C 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 98 mm of rainfall in the month.

23
23°C max day temperature
8
8 hours of sunshine per day
13
13 days with some rainfall
10
10°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
98
98 mm of monthly rainfall
8
8 (Very High) UV index

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Marietta weather in June

Expect daytime maximum temperatures of 28°C 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 95 mm of rainfall in the month.

28
28°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
15
15°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
95
95 mm of monthly rainfall
9
9 (Very High) UV index

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Marietta weather in July

Expect daytime maximum temperatures of 30°C 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 110 mm of rainfall in the month.

30
30°C max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
18
18°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
110
110 mm of monthly rainfall
9
9 (Very High) UV index

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Marietta weather in August

Expect daytime maximum temperatures of 29°C 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 104 mm of rainfall in the month.

29
29°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
17
17°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
104
104 mm of monthly rainfall
8
8 (Very High) UV index

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Marietta weather in September

Expect daytime maximum temperatures of 25°C 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 79 mm of rainfall in the month.

25
25°C max day temperature
7
7 hours of sunshine per day
10
10 days with some rainfall
13
13°C min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
79
79 mm of monthly rainfall
7
7 (High) UV index

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Marietta weather in October

Expect daytime maximum temperatures of 19°C 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 71 mm of rainfall in the month.

19
19°C max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
6
6°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
71
71 mm of monthly rainfall
4
4 (Moderate) UV index

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Marietta weather in November

Expect daytime maximum temperatures of 13°C 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 82 mm of rainfall in the month.

13
13°C max day temperature
4
4 hours of sunshine per day
13
13 days with some rainfall
2
2°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
82
82 mm of monthly rainfall
2
2 (Low) UV index

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Marietta weather in December

Expect daytime maximum temperatures of 6°C 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 78 mm of rainfall in the month.