Photo: Nyttend · Public domainDeer Park’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 86°, a January night drops to 23°, and about 16 inches of snow falls in a normal winter.
A year in Deer Park at a glance
Each month’s typical high and low, and what it brings.
What stands out about Deer Park’s climate
Compared with towns across the U.S., with Deer Park’s place in Ohio beside it.
What a year in Deer Park feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 190 frost-free days a year
In half of years the last 32° night comes by April 16 and the first by October 25. Frost and day counts come from NOAA’s station at Cincinnati Lunken Airport, 7 miles from the town’s center, 380 ft lower.
The 2023 USDA map puts Deer Park’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −1°. 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 16 inches of snow a winter
Snow, measured at Cheviot, OH, falls mostly in January. Precipitation (rain plus melted snow) adds up to 44 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 124 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Deer Park
81% of the work is heating. Months averaging under 55° run from November 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 Cincinnati Lunken Airport.
Living with Deer Park’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
190 frost-free days in zone 6b. The last frost comes by Apr 16 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 25.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 0.7 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Deer Park from natural hazards, river flooding is the largest share (34%); heat waves, cold waves, winter storms and ice storms together are 27%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Deer Park and its neighbors
Every town next door is within a degree of Deer Park in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Deer Park’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 |
|---|---|---|---|---|
| Deer Park, OH | 23° | 86° | 44" | 16" |
| Olney, MD | 25° | 86° | 46" | 16" |
| Effingham, IL | 21° | 87° | 44" | 15" |
| Parkersburg, WV | 24° | 86° | 44" | 11" |
| Millersville, PA | 22° | 86° | 45" | 21" |
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 Deer Park averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.4°).
A smaller shift than in 60% 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 Deer Park compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Deer Park’s place among Ohio’s.
Deer Park weather by month
Highs, lows and precipitation from NOAA’s grid at Deer Park’s center; snow, wet days and snow on the ground from Cheviot, OH. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 23° | 3.2" | 6.0" | 12 | 10 | 22° – 41° |
| February | 44° | 26° | 2.9" | 4.3" | 10 | 9 | 22° – 44° |
| March | 53° | 34° | 3.8" | 2.4" | 12 | 2 | 37° – 55° |
| April | 66° | 43° | 4.5" | 0.2" | 12 | 0 | 49° – 59° |
| May | 75° | 53° | 4.9" | 0.0" | 12 | 0 | 58° – 72° |
| June | 83° | 61° | 4.7" | 0.0" | 11 | 0 | 68° – 75° |
| July | 86° | 65° | 4.2" | 0.0" | 10 | 0 | 71° – 81° |
| August | 86° | 64° | 3.5" | 0.0" | 8 | 0 | 70° – 80° |
| September | 79° | 56° | 3.1" | 0.0" | 8 | 0 | 64° – 74° |
| October | 67° | 45° | 3.2" | 0.3" | 8 | 0 | 52° – 62° |
| November | 54° | 35° | 3.0" | 0.2" | 9 | 0 | 38° – 50° |
| December | 43° | 28° | 3.4" | 2.6" | 12 | 6 | 24° – 46° |
| Year | 65° | 44° | 44.4" | 16.0" | 124 | 27 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 22° to 44°. June is the most reliable, staying within 8°.
Where Deer Park’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 Deer Park’s center.
- Snow: Cheviot, OH.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Cincinnati Lunken Airport, 7 miles from the town’s center, 380 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 Deer Park’s climate
What is the weather like in Deer Park?
A typical July afternoon reaches 86°, a January night drops to 23°, and about 16 inches of snow falls in a normal winter. Milder January nights than 56% of U.S. towns; hotter July afternoons than 57% of U.S. towns.
How cold does it get in Deer Park in winter?
January nights average 23°. About 102 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does Deer Park get?
About 16 inches in a normal winter at Cheviot, OH, most of it in January, with snow on the ground about 27 days a year.
How hot does it get in Deer Park?
July, with a typical high of 86° and a low of 65°. About 27 days a year reach 90° (Cincinnati Lunken Airport).
When is the first and last frost in Deer Park?
In half of years the last spring frost (32°) comes by April 16 and the first fall frost by October 25, about 190 frost-free days, at Cincinnati Lunken Airport.
What growing zone is Deer Park in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −1°.
What is the best time of year to visit Deer Park?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Deer Park getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 60% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Deer Park.
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.