Gahanna Climate by Month
Gahanna, Ohio, United States
Warm summers and cold winters, with rain spread through the year.
The climate in Gahanna is one of warm summers and cold winters, with rain spread through the year. Afternoon highs range from 37°F (3°C) in January to 86°F (30°C) in July, and January nights average 21°F (-6°C). It gets 39 in (989 mm) of rain a year, spread across the months.
- Warmest month
- 86°F(30°C)
- Average high, July
- Coldest nights
- 21°F(-6°C)
- Average low, January
- Rain per year
- 39 in(989 mm)
- No clear rainy season
- Humidity
- 70%
- Sunniest: July
Best and worst months in Gahanna
Best for weatherMay and September are the best time for weather in Gahanna: highs near 77°F (25°C) and about 3.7 in (95 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 37°F (3°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Gahanna weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 37°F(3°C) | 21°F(-6°C) | 2.6 in(67 mm) | 74% | 1.5 |
| FebFebruary | 41°F(5°C) | 23°F(-5°C) | 2.3 in(58 mm) | 82% | 2.4 |
| MarMarch | 52°F(11°C) | 31°F(0°C) | 3.0 in(76 mm) | 67% | 3.5 |
| AprApril | 65°F(18°C) | 41°F(5°C) | 3.8 in(96 mm) | 59% | 4.4 |
| MayMayBest | 74°F(24°C) | 51°F(11°C) | 4.2 in(106 mm) | 66% | 5.2 |
| JunJune | 83°F(28°C) | 60°F(16°C) | 4.4 in(111 mm) | 68% | 5.7 |
| JulJuly | 86°F(30°C) | 64°F(18°C) | 4.1 in(103 mm) | 68% | 5.8 |
| AugAugust | 85°F(29°C) | 62°F(17°C) | 3.1 in(80 mm) | 71% | 5.3 |
| SepSeptemberBest | 79°F(26°C) | 55°F(13°C) | 3.3 in(84 mm) | 66% | 4.3 |
| OctOctober | 67°F(19°C) | 44°F(6°C) | 2.5 in(64 mm) | 67% | 3.0 |
| NovNovember | 53°F(12°C) | 34°F(1°C) | 2.8 in(71 mm) | 74% | 1.9 |
| DecDecember | 42°F(5°C) | 27°F(-3°C) | 2.9 in(73 mm) | 75% | 1.3 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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