Climate Portsmouth - Ohio
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 41 | 45 | 56 | 67 | 76 | 83 |
| Average low in ºF Av. low Lo | 24 | 26 | 34 | 42 | 51 | 61 |
| Av. precipitation in inch Av. precip. Pre. | 3.05 | 2.78 | 3.65 | 3.55 | 4.96 | 3.54 |
| Av. snowfall in inch Snowfall Sn | 5 | 2 | 1 | 0 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 87 | 86 | 80 | 69 | 56 | 44 |
| Average low in ºF Av. low Lo | 64 | 62 | 55 | 43 | 35 | 27 |
| Av. precipitation in inch Av. precip. Pre. | 4.18 | 3.56 | 2.67 | 2.64 | 3.07 | 3.23 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 0 | 1 |
Portsmouth experiences a humid subtropical climate, characterized by hot summers and cold winters, indicating a strong seasonal contrast. The area is fairly wet, with rainfall spread fairly evenly throughout the year, though spring is typically the wettest season and fall the driest. Occasional snowfall occurs during the winter months.
Portsmouth Climate Graph - Ohio Climate Chart
Daily normals Portsmouth - Ohio - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 41.3 | 24.6 | 0.12 | 0.12 | 0.12 | 0.30 |
| 2 Jan | 41.2 | 24.5 | 0.20 | 0.20 | 0.12 | 0.30 |
| 3 Jan | 41.2 | 24.4 | 0.28 | 0.28 | 0.20 | 0.50 |
| 4 Jan | 41.1 | 24.3 | 0.39 | 0.39 | 0.39 | 1.00 |
| 5 Jan | 41.0 | 24.2 | 0.47 | 0.47 | 0.51 | 1.30 |
| 6 Jan | 41.0 | 24.1 | 0.59 | 0.59 | 0.59 | 1.50 |
| 7 Jan | 40.9 | 24.0 | 0.67 | 0.67 | 0.79 | 2.00 |
| 8 Jan | 40.9 | 23.9 | 0.79 | 0.79 | 0.91 | 2.30 |
| 9 Jan | 40.8 | 23.9 | 0.87 | 0.87 | 1.10 | 2.80 |
| 10 Jan | 40.8 | 23.8 | 0.98 | 0.98 | 1.18 | 3.00 |
| 11 Jan | 40.8 | 23.8 | 1.06 | 1.06 | 1.42 | 3.60 |
| 12 Jan | 40.7 | 23.7 | 1.18 | 1.18 | 1.50 | 3.80 |
| 13 Jan | 40.7 | 23.7 | 1.30 | 1.30 | 1.69 | 4.30 |
| 14 Jan | 40.7 | 23.6 | 1.38 | 1.38 | 1.81 | 4.60 |
| 15 Jan | 40.7 | 23.6 | 1.50 | 1.50 | 2.01 | 5.10 |
| 16 Jan | 40.7 | 23.6 | 1.57 | 1.57 | 2.09 | 5.30 |
| 17 Jan | 40.7 | 23.6 | 1.69 | 1.69 | 2.28 | 5.80 |
| 18 Jan | 40.8 | 23.5 | 1.77 | 1.77 | 2.52 | 6.40 |
| 19 Jan | 40.8 | 23.5 | 1.89 | 1.89 | 2.60 | 6.60 |
| 20 Jan | 40.8 | 23.5 | 1.97 | 1.97 | 2.80 | 7.10 |
| 21 Jan | 40.8 | 23.5 | 2.09 | 2.09 | 2.99 | 7.60 |
| 22 Jan | 40.9 | 23.5 | 2.17 | 2.17 | 3.11 | 7.90 |
| 23 Jan | 40.9 | 23.5 | 2.28 | 2.28 | 3.31 | 8.40 |
| 24 Jan | 41.0 | 23.6 | 2.36 | 2.36 | 3.39 | 8.60 |
| 25 Jan | 41.1 | 23.6 | 2.44 | 2.44 | 3.58 | 9.10 |
| 26 Jan | 41.2 | 23.6 | 2.56 | 2.56 | 3.70 | 9.40 |
| 27 Jan | 41.3 | 23.7 | 2.64 | 2.64 | 3.90 | 9.90 |
| 28 Jan | 41.4 | 23.7 | 2.76 | 2.76 | 4.02 | 10.20 |
| 29 Jan | 41.5 | 23.8 | 2.83 | 2.83 | 4.21 | 10.70 |
| 30 Jan | 41.6 | 23.8 | 2.95 | 2.95 | 4.29 | 10.90 |
| 31 Jan | 41.7 | 23.9 | 3.03 | 3.03 | 4.49 | 11.40 |
Weather history Portsmouth - June 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jun | 81.0 | 51.1 | 0.00 | 0.00 | 0.0 |
| 02 Jun | 77.0 | 48.9 | 0.00 | 0.00 | 0.0 |
| 03 Jun | 81.0 | 50.0 | 0.00 | 0.00 | 0.0 |
| 04 Jun | 82.9 | 50.0 | 0.00 | 0.00 | 0.0 |
| 05 Jun | 84.0 | 51.1 | 0.00 | - | - |
| 06 Jun | 84.9 | 60.1 | 0.00 | 0.00 | 0.0 |
| 07 Jun | 84.9 | 61.0 | 0.00 | 0.00 | 0.0 |
| 08 Jun | 89.1 | 64.0 | 0.94 | 0.00 | 0.0 |
| 09 Jun | 87.1 | 69.1 | 0.00 | 0.00 | 0.0 |
| 10 Jun | 81.0 | 71.1 | 0.96 | 0.00 | 0.0 |
| 11 Jun | - | - | - | - | - |
| 12 Jun | - | - | - | - | - |
| 13 Jun | 84.0 | 60.1 | 0.00 | 0.00 | 0.0 |
| 14 Jun | 86.0 | 62.1 | 0.00 | 0.00 | 0.0 |
| 15 Jun | 84.9 | 57.0 | 0.09 | 0.00 | 0.0 |
| 16 Jun | - | - | - | - | - |
| 17 Jun | - | - | - | - | - |
| 18 Jun | - | - | - | - | - |
| 19 Jun | - | - | - | - | - |
| 20 Jun | - | - | - | - | - |
| 21 Jun | - | - | - | - | - |
| 22 Jun | - | - | - | - | - |
| 23 Jun | - | - | - | - | - |
| 24 Jun | - | - | - | - | - |
| 25 Jun | - | - | - | - | - |
| 26 Jun | - | - | - | - | - |
| 27 Jun | - | - | - | - | - |
| 28 Jun | - | - | - | - | - |
| 29 Jun | - | - | - | - | - |
| 30 Jun | - | - | - | - | - |
Past weather Portsmouth
| Jun 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 83.7 ºF | 41 ºF | |
| Average low temperature Av. low temp. | 58.1 ºF | 24 ºF | |
| Total precipitation Total precip. | 1.99 inch | 3.05 inch | |
| Total snowfall Total snowfall | 0.00 inch | 5 inch | |
| Highest max temperature Highest max temp. | 89.1 ºF | - | |
| Lowest max temperature Lowest max temp. | 77.0 ºF | - | |
| Highest min temperature Highest min temp. | 71.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 48.9 ºF | - | |
Past weather June 2026 incomplete - Missing data
Geo Portsmouth - Ohio
| Country | United States | |
|---|---|---|
| State | Ohio | |
| County | - | |
| City | Portsmouth | |
| Zip Code | 45662 | |
| Longitude | -83 dec. degr. | |
| Latitude | 38.73 dec. degr. | |
| Altitude - Elevation | 535ft | |
| ICAO | - | |
| IATA | - |
Date and Time Portsmouth - Ohio
| Local Time | 07:20 PM | |
|---|---|---|
| Sunrise | 06:05 AM | |
| Sunset | 09:00 PM | |
| Day/Night | Day | |
| Timezone | New_York -5:00 | |
| Timezone DB | America - New York |
Map of Portsmouth - Ohio
USGS National Map — Open interactive map
Portsmouth weather averages
| Annual high temperature | 66ºF |
| Annual low temperature | 44ºF |
| Average annual precip. | 40.88 inch |
| Av. annual snowfall | 9 inch |
Station Data
Monthly averages Portsmouth
Longitude: -82.9977, Latitude: 38.7317
Average weather Portsmouth, OH - 45662
Monthly: 1991-2020 normals
History: 2008-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...