Hot-summer humid continental climate
Climate Marietta - Ohio
Annual high64ºF
Annual low42ºF
Precipitation42.7 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 39 | 22 | 3.13 | 7 |
| Feb | 43 | 24 | 2.81 | 5 |
| Mar | 53 | 31 | 3.74 | 3 |
| Apr | 65 | 40 | 3.37 | 1 |
| May | 74 | 49 | 4.33 | 0 |
| Jun | 82 | 59 | 4.58 | 0 |
| Jul | 85 | 63 | 4.57 | 0 |
| Aug | 84 | 62 | 3.56 | 0 |
| Sep | 78 | 54 | 3.18 | 0 |
| Oct | 66 | 42 | 2.90 | 0 |
| Nov | 55 | 33 | 3.21 | 1 |
| Dec | 43 | 26 | 3.32 | 3 |
- JanHigh 39ºFLow 22ºFPrecip 3.13 inch
- FebHigh 43ºFLow 24ºFPrecip 2.81 inch
- MarHigh 53ºFLow 31ºFPrecip 3.74 inch
- AprHigh 65ºFLow 40ºFPrecip 3.37 inch
- MayHigh 74ºFLow 49ºFPrecip 4.33 inch
- JunHigh 82ºFLow 59ºFPrecip 4.58 inch
- JulHigh 85ºFLow 63ºFPrecip 4.57 inch
- AugHigh 84ºFLow 62ºFPrecip 3.56 inch
- SepHigh 78ºFLow 54ºFPrecip 3.18 inch
- OctHigh 66ºFLow 42ºFPrecip 2.90 inch
- NovHigh 55ºFLow 33ºFPrecip 3.21 inch
- DecHigh 43ºFLow 26ºFPrecip 3.32 inch
Climate summary
What is the average weather in Marietta, Ohio?
Marietta experiences a humid continental climate, characterized by warm summers and cold winters. Precipitation is fairly wet and spread relatively evenly throughout the year, with winter moisture often arriving as regular snowfall. The seasonal contrast between summer and winter temperatures is strong.
Marietta weather averages
Annual high64ºF
Annual low42ºF
Precipitation42.7 inch
Snowfall20 inch
Daily normals Marietta - Ohio - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 40.4 | 24.8 | 0.11 | 0.11 | 0.20 | 0.20 |
| Jan 2 | 40.3 | 24.6 | 0.22 | 0.22 | 0.30 | 0.30 |
| Jan 3 | 40.1 | 24.4 | 0.33 | 0.33 | 0.50 | 0.50 |
| Jan 4 | 40.0 | 24.2 | 0.45 | 0.45 | 0.70 | 0.70 |
| Jan 5 | 39.9 | 24.0 | 0.56 | 0.56 | 0.90 | 0.90 |
| Jan 6 | 39.8 | 23.8 | 0.68 | 0.68 | 1.10 | 1.10 |
| Jan 7 | 39.7 | 23.7 | 0.79 | 0.79 | 1.30 | 1.30 |
| Jan 8 | 39.6 | 23.5 | 0.90 | 0.90 | 1.60 | 1.60 |
| Jan 9 | 39.5 | 23.3 | 1.01 | 1.01 | 1.80 | 1.80 |
| Jan 10 | 39.4 | 23.1 | 1.12 | 1.12 | 2.10 | 2.10 |
| Jan 11 | 39.4 | 23.0 | 1.24 | 1.24 | 2.30 | 2.30 |
| Jan 12 | 39.3 | 22.8 | 1.35 | 1.35 | 2.60 | 2.60 |
| Jan 13 | 39.3 | 22.7 | 1.47 | 1.47 | 2.80 | 2.80 |
| Jan 14 | 39.2 | 22.5 | 1.58 | 1.58 | 3.10 | 3.10 |
| Jan 15 | 39.2 | 22.4 | 1.70 | 1.70 | 3.30 | 3.30 |
| Jan 16 | 39.1 | 22.3 | 1.81 | 1.81 | 3.60 | 3.60 |
| Jan 17 | 39.1 | 22.2 | 1.93 | 1.93 | 3.90 | 3.90 |
| Jan 18 | 39.1 | 22.1 | 2.04 | 2.04 | 4.10 | 4.10 |
| Jan 19 | 39.1 | 22.0 | 2.15 | 2.15 | 4.40 | 4.40 |
| Jan 20 | 39.1 | 21.9 | 2.26 | 2.26 | 4.60 | 4.60 |
| Jan 21 | 39.1 | 21.9 | 2.37 | 2.37 | 4.90 | 4.90 |
| Jan 22 | 39.2 | 21.8 | 2.48 | 2.48 | 5.10 | 5.10 |
| Jan 23 | 39.2 | 21.8 | 2.59 | 2.59 | 5.30 | 5.30 |
| Jan 24 | 39.3 | 21.8 | 2.70 | 2.70 | 5.60 | 5.60 |
| Jan 25 | 39.3 | 21.8 | 2.82 | 2.82 | 5.80 | 5.80 |
| Jan 26 | 39.4 | 21.8 | 2.93 | 2.93 | 6.00 | 6.00 |
| Jan 27 | 39.5 | 21.8 | 3.05 | 3.05 | 6.30 | 6.30 |
| Jan 28 | 39.6 | 21.8 | 3.16 | 3.16 | 6.50 | 6.50 |
| Jan 29 | 39.7 | 21.9 | 3.27 | 3.27 | 6.70 | 6.70 |
| Jan 30 | 39.8 | 21.9 | 3.38 | 3.38 | 7.00 | 7.00 |
| Jan 31 | 39.9 | 22.0 | 3.49 | 3.49 | 7.20 | 7.20 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Marietta - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 84.9 | 57.0 | 0.00 |
| Oct 2 | 75.0 | 59.0 | 0.07 |
| Oct 3 | 72.0 | 54.0 | 0.00 |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | 75.0 | 42.1 | 0.00 |
| Oct 8 | – | – | – |
| Oct 9 | 73.0 | 44.1 | 0.00 |
| Oct 10 | 66.9 | 51.1 | 0.45 |
| Oct 11 | 70.0 | 55.9 | 1.90 |
| Oct 12 | 72.0 | 57.9 | 0.04 |
| Oct 13 | 84.0 | 55.9 | 0.01 |
| Oct 14 | 84.9 | 62.1 | 0.76 |
| Oct 15 | 70.0 | 60.1 | 0.01 |
| Oct 16 | 75.0 | 53.1 | 0.03 |
| Oct 17 | 55.9 | 41.0 | 0.00 |
| Oct 18 | 64.0 | 34.0 | 0.00 |
| Oct 19 | 70.0 | 36.0 | 0.00 |
| Oct 20 | 71.1 | 37.0 | 0.00 |
| Oct 21 | 70.0 | 39.0 | 0.00 |
| Oct 22 | 66.9 | 39.0 | 0.00 |
| Oct 23 | 68.0 | 39.0 | 0.00 |
| Oct 24 | 66.9 | 39.0 | 0.00 |
| Oct 25 | 69.1 | 39.9 | 0.00 |
| Oct 26 | 70.0 | 39.9 | 0.00 |
| Oct 27 | 73.9 | 43.0 | 0.00 |
| Oct 28 | 73.0 | 48.0 | 0.00 |
| Oct 29 | 73.9 | 45.0 | 0.00 |
| Oct 30 | 73.9 | 45.0 | 0.00 |
| Oct 31 | 66.9 | 44.1 | 0.00 |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature84.9ºF · Oct 1
- Lowest max temperature55.9ºF · Oct 17
- Highest min temperature62.1ºF · Oct 14
- Lowest min temperature34.0ºF · Oct 18
Geo Marietta - Ohio
Location
- Country
- United States
- State
- Ohio
- County
- –
- City
- Marietta
- Zip Code
- 45750
- Elevation
- 614 ft
- Longitude
- -81.45
- Latitude
- 39.42
- ICAO
- –
- IATA
- –