Phillip Henninger House · Photo: Nyttend · Public domainSummers in Parma are cooler than in 76% of U.S. towns
January mornings start at about 21°. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 62° apart. Precipitation is light here, less than falls on 63% of U.S. towns. Long walks are most pleasant from May to October, when afternoons reach 63–83°.
A year in Parma at a glance
Each month’s typical high and low, and what it brings.
What stands out about Parma’s climate
Compared with towns across the U.S., with Parma’s place in Ohio beside it.
What a year in Parma feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 198 frost-free days a year
In half of years the last 32° night comes by April 20 and the first by November 3. Frost and day counts come from NOAA’s station at Cleveland, OH, 7 miles from the city’s center point, 120 ft lower.
The 2023 USDA map puts Parma’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −3°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 64 inches of snow a winter
Snow, measured at Cleveland, OH, falls mostly in January. Precipitation (rain plus melted snow) adds up to 39 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 159 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Parma
85% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Cleveland, OH.
Living with Parma’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
198 frost-free days in zone 6b. The last frost comes by Apr 20 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 3.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 22 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Parma from natural hazards, river flooding is the largest share (62%); heat waves, cold waves, winter storms and ice storms together are 24%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Parma and its neighbors
North Royalton has the coldest January nights next door (20°, 1° colder). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Parma’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Parma, OH | 21° | 83° | 39" | 64" |
| Michigan City, IN | 19° | 82° | 39" | 65" |
| Clearfield, PA | 18° | 83° | 41" | 63" |
| Niles, MI | 18° | 83° | 40" | 63" |
| Seneca Falls, NY | 18° | 82° | 38" | 56" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
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°).
A bigger shift than in 62% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Parma compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Parma’s place among Ohio’s.
Parma weather by month
Highs, lows and precipitation from NOAA’s grid at Parma’s center; snow, wet days and snow on the ground from Cleveland, OH. 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" | 0.0" | 13 | 0 | 53° – 67° |
| June | 79° | 60° | 3.9" | 0.0" | 12 | 0 | 64° – 74° |
| July | 83° | 64° | 3.8" | 0.0" | 11 | 0 | 69° – 77° |
| August | 81° | 62° | 3.5" | 0.0" | 10 | 0 | 67° – 76° |
| September | 74° | 55° | 3.8" | 0.0" | 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 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 14° to 40°. July is the most reliable, staying within 8°.
Where Parma’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Parma’s center.
- Snow: Cleveland, OH.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Cleveland, OH, 7 miles from the city’s center point, 120 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Parma’s climate
What is the weather like in Parma?
A typical July afternoon reaches 83°, a January night drops to 21°, and about 64 inches of snow falls in a normal winter. Colder January nights than 55% of U.S. towns; cooler July afternoons than 76% of U.S. towns.
How cold does it get in Parma in winter?
January nights average 21°. About 111 nights a year reach 32° or below and 3 reach 0° or below. In the coldest January of the last 30 years the month averaged 18°.
How much snow does Parma get?
About 64 inches in a normal winter at Cleveland, OH, most of it in January, with snow on the ground about 52 days a year.
How hot does it get in Parma?
July, with a typical high of 83° and a low of 64°. About 12 days a year reach 90° (Cleveland, OH).
When is the first and last frost in Parma?
In half of years the last spring frost (32°) comes by April 20 and the first fall frost by November 3, about 198 frost-free days, at Cleveland, OH.
What growing zone is Parma in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −3°.
What is the best time of year to visit Parma?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Parma getting warmer?
Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 62% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Parma.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.