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CheckWeather USGahanna

Gahanna weather

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NWSNational Blend (NBM)
80°
Drizzle
Feels 85° · Wind 7 mph · Humidity 68%
AmericanNOAA GFS
80°
Mainly clear
Feels 86° · Wind 7 mph · Humidity 66%
EuropeanECMWF
82°
Partly cloudy
Feels 86° · Wind 7 mph · Humidity 67%

Latest for Gahanna: NWS (National Blend (NBM)): 80° Drizzle · American (NOAA GFS): 80° Mainly clear · European (ECMWF): 82° Partly cloudy.

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Gahanna weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Gahanna weather in numbers

from 30 years of measured normals

Gahanna swings 56°F across the year, from 84°F highs in July to 28°F lows in January, and April is usually the wettest month in a year that brings about 44 in of precipitation.

Warmest month
July
84°F average high
Coldest month
January
28°F average low
Wettest month
April
44 in a year
Below freezing
2 months
January and February
Comfortable
3 months
May, September and October
Residents
35,000
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The weather map: all three models at once

NWS, American, European side by side around Gahanna and nearby towns.Live rain radar →
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Gahanna hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Gahanna 10-day forecast, out to 14 days

where the models agree, and where they split

Gahanna, Ohio (OH) is at its warmest in Jul (average highs near 84°F) and coldest in Jan (lows around 28°F), with roughly 44 in of precipitation across the year. Below, compare what NWS, American, European forecast for Gahanna right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Gahanna climate by month

average daytime high and overnight low across a typical year
Jan
40°
28°
Feb
49°
30°
Mar
52°
34°
Apr
64°
44°
May
73°
54°
Jun
80°
61°
Jul
84°
66°
Aug
82°
64°
Sep
78°
60°
Oct
66°
49°
Nov
53°
38°
Dec
44°
32°

Which forecast is most accurate in Gahanna?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
87
/100rank #1
93±0.7°F94±2.0 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
78
/100rank #2
85±1.5°F96±1.4 mph5877% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Common questions

What's the weather in Gahanna today?
On this page we show what NWS, American, European each forecast for Gahanna today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Gahanna today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Gahanna and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Gahanna?
Over the last 30 days, the European model has been the most accurate for Gahanna (CheckWeather Score 87/100), ahead of the American at 78. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Gahanna?
July is typically the warmest month in Gahanna, with average highs around 84°F.
How cold does Gahanna get?
The coldest month in Gahanna is January, when overnight lows average about 28°F.
How much rain does Gahanna get?
Gahanna sees roughly 44 in of precipitation a year, with April usually the wettest month.

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