Parma, OH climate
Parma has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 21°, and about 64 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Parma feels like
Winter
Spring
Summer
Fall
Parma 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 | 34° | 21° | 2.6" | 18.4" | 18 | 17 | 18° – 38° |
| February | 37° | 22° | 2.1" | 15.1" | 15 | 14 | 14° – 40° |
| March | 46° | 29° | 2.8" | 10.8" | 15 | 7 | 31° – 50° |
| April | 59° | 39° | 3.5" | 2.7" | 15 | 1 | 42° – 56° |
| May | 70° | 50° | 3.8" | 0 | 13 | 0 | 53° – 67° |
| June | 79° | 60° | 3.9" | 0 | 12 | 0 | 64° – 74° |
| July | 83° | 64° | 3.8" | 0 | 11 | 0 | 69° – 77° |
| August | 81° | 62° | 3.5" | 0 | 10 | 0 | 67° – 76° |
| September | 74° | 55° | 3.8" | 0 | 10 | 0 | 62° – 70° |
| October | 63° | 45° | 3.5" | 0.1" | 12 | 0 | 49° – 60° |
| November | 50° | 35° | 3.2" | 4.5" | 13 | 3 | 36° – 49° |
| December | 39° | 27° | 2.8" | 12.2" | 16 | 10 | 23° – 44° |
| Year | 60° | 42° | 39.4" | 63.8" | 159 | 52 |
“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 Parma
Parma gets 39 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 159 days a year. Snow covers the ground about 52 days of the year.
About 198 frost-free days a year
In half of years the last 32° night comes by April 20 and the first one by November 3. That leaves about 198 frost-free days for gardens, longer than 71% of U.S. towns.
Heating and cooling a home in Parma
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Parma, 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.
Parma and its neighbors
Parma borders 4 towns with climate data. January nights across them vary by 1.5°. North Royalton has the coldest January nights (20°) and Brook Park the hottest July afternoons (83°). Parma’s January low is 21° and its July high 83°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Parma 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 Parma averaged 1.5° warmer than the 1900s. The biggest change is in December (+2.8°). The shift is larger than in 72% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Parma’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°. July is the most reliable, staying within 8°.
Common questions about Parma’s climate
What is the coldest month in Parma?
January, with a typical high of 34° and a low of 21°.
What is the hottest month in Parma?
July, with a typical high of 83° and a low of 64°. About 12 days a year reach 90°.
How much snow does Parma get?
About 64 inches in a normal winter, most of it in January.
When is the first frost in Parma?
In half of years the first 32° night comes by November 3, and the last spring frost by April 20.
What is the rainiest month in Parma?
June, with 3.9 inches of rain and melted snow. The year totals 39 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Parma itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cleveland, OH (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.