Ottawa Hills, OH climate
Ottawa Hills has chilly, snowy winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 20°, and about 37 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Ottawa Hills feels like
Winter
Spring
Summer
Fall
Ottawa Hills 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 | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 33° | 20° | 2.2" | 12.3" | 14 | 15 | 17° – 37° |
| February | 36° | 22° | 2.0" | 10.2" | 11 | 12 | 14° – 40° |
| March | 47° | 29° | 2.4" | 5.3" | 12 | 5 | 30° – 52° |
| April | 60° | 39° | 3.3" | 1.3" | 12 | 0 | 44° – 55° |
| May | 72° | 50° | 3.7" | 0 | 13 | 0 | 54° – 67° |
| June | 81° | 60° | 3.4" | 0 | 11 | 0 | 66° – 75° |
| July | 85° | 63° | 3.3" | 0 | 10 | 0 | 69° – 79° |
| August | 83° | 62° | 3.2" | 0 | 9 | 0 | 67° – 77° |
| September | 76° | 54° | 3.1" | 0 | 9 | 0 | 61° – 71° |
| October | 64° | 44° | 2.7" | 0.1" | 11 | 0 | 50° – 60° |
| November | 50° | 34° | 2.5" | 1.7" | 11 | 1 | 35° – 48° |
| December | 38° | 26° | 2.2" | 6.5" | 12 | 8 | 19° – 42° |
| Year | 60° | 42° | 34.0" | 37.4" | 133 | 40 |
“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 Ottawa Hills
Ottawa Hills gets 34 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 133 days a year. Snow covers the ground about 40 days of the year.
About 188 frost-free days a year
In half of years the last 32° night comes by April 22 and the first one by October 24. That leaves about 188 frost-free days for gardens, longer than 62% of U.S. towns.
Heating and cooling a home in Ottawa Hills
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Ottawa Hills, 85% of that work is heating and 15% 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.
Ottawa Hills and its neighbors
Ottawa Hills borders 2 towns with climate data. January nights across them vary by 1.6°. Sylvania has the coldest January nights (19°) and Toledo the hottest July afternoons (85°). Ottawa Hills’s January low is 20° and its July high 85°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Ottawa Hills compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Ottawa Hills averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.8°). The shift is larger than in 62% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Ottawa Hills’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 14° to 40°. June is the most reliable, staying within 9°.
Common questions about Ottawa Hills’s climate
What is the coldest month in Ottawa Hills?
January, with a typical high of 33° and a low of 20°.
What is the hottest month in Ottawa Hills?
July, with a typical high of 85° and a low of 63°. About 19 days a year reach 90°.
How much snow does Ottawa Hills get?
About 37 inches in a normal winter, most of it in January.
When is the first frost in Ottawa Hills?
In half of years the first 32° night comes by October 24, and the last spring frost by April 22.
What is the rainiest month in Ottawa Hills?
May, with 3.7 inches of rain and melted snow. The year totals 34 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Ottawa Hills itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Toledo Express Airport, OH (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.