Marion, OH climate
Marion has chilly winters and pleasant summers. A typical July afternoon reaches 84°, a January night drops to 19°, and about 29 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Marion feels like
Winter
Spring
Summer
Fall
Marion weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 34° | 19° | 2.7" | 10.8" | 12 | 18° – 38° |
| February | 38° | 22° | 2.2" | 7.1" | 9 | 17° – 41° |
| March | 48° | 30° | 3.0" | 4.1" | 11 | 33° – 53° |
| April | 62° | 39° | 3.8" | 0.5" | 12 | 44° – 56° |
| May | 72° | 51° | 4.3" | 0 | 13 | 55° – 68° |
| June | 81° | 60° | 4.5" | 0 | 11 | 65° – 73° |
| July | 84° | 63° | 4.2" | 0 | 10 | 69° – 79° |
| August | 82° | 61° | 3.4" | 0 | 8 | 67° – 76° |
| September | 77° | 53° | 3.0" | 0 | 8 | 61° – 69° |
| October | 64° | 43° | 2.8" | 0.1" | 9 | 50° – 60° |
| November | 50° | 33° | 3.0" | 1.3" | 9 | 34° – 48° |
| December | 39° | 24° | 2.6" | 4.9" | 10 | 19° – 42° |
| Year | 61° | 41° | 39.6" | 28.8" | 123 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Marion
Marion gets 40 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 123 days a year.
About 175 frost-free days a year
In half of years the last 32° night comes by April 27 and the first one by October 19. That leaves about 175 frost-free days for gardens, shorter than 54% of U.S. towns.
Heating and cooling a home in Marion
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Marion, 87% of that work is heating and 13% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Marion and its neighbors
Marion borders 4 towns with climate data. January nights across them vary by 0.4°. Franklin has the coldest January nights (19°) and Jackson the hottest July afternoons (84°). Marion’s January low is 19° and its July high 84°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.