Photo: GrantGursky · CC BY-SA 4.0Neither notably warm, cold, wet nor dry, New Philadelphia sits near the middle of U.S. towns
The warmest part of a July day comes in at 84° on average. Compared with 1901–2000, the average now sits 1.2° higher. Seedlings are safe outdoors from about April 30, with the first autumn frost due around October 15.
A year in New Philadelphia at a glance
Each month’s typical high and low, and what it brings.
What stands out about New Philadelphia’s climate
Compared with towns across the U.S., with New Philadelphia’s place in Ohio beside it.
What a year in New Philadelphia feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 167 frost-free days a year
In half of years the last 32° night comes by April 30 and the first by October 15. Frost and day counts come from NOAA’s station at New Philadelphia, OH, 0.4 miles from the town’s center, at about the same height.
The 2023 USDA map puts New Philadelphia’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −4°. 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 40 inches of rain a year
June is the wettest month and February the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in New Philadelphia
89% 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 New Philadelphia, OH.
Living with New Philadelphia’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
167 frost-free days in zone 6b. The last frost comes by Apr 30 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 15.
Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October. 6.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in New Philadelphia from natural hazards, river flooding is the largest share (82%); heat waves, cold waves, winter storms and ice storms together are 5%. Normals are averages; the hazards page covers the extremes.
Natural hazards →New Philadelphia and its neighbors
Every town next door is within a degree of New Philadelphia in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
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 New Philadelphia averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.7°).
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 New Philadelphia compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with New Philadelphia’s place among Ohio’s.
New Philadelphia weather by month
Highs, lows and precipitation from NOAA’s grid at New Philadelphia’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 36° | 20° | 2.9" | 19° – 39° |
| February | 40° | 22° | 2.4" | 17° – 40° |
| March | 49° | 29° | 3.3" | 33° – 51° |
| April | 63° | 39° | 3.7" | 45° – 56° |
| May | 73° | 49° | 3.8" | 53° – 68° |
| June | 81° | 58° | 4.5" | 65° – 72° |
| July | 84° | 62° | 4.2" | 68° – 77° |
| August | 83° | 60° | 3.5" | 67° – 77° |
| September | 76° | 53° | 3.4" | 61° – 70° |
| October | 64° | 42° | 3.0" | 49° – 60° |
| November | 52° | 33° | 2.8" | 35° – 48° |
| December | 41° | 26° | 2.9" | 22° – 44° |
| Year | 62° | 41° | 40.2" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 17° to 40°. June is the most reliable, staying within 7°.
Where New Philadelphia’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 New Philadelphia’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: New Philadelphia, OH, 0.4 miles from the town’s center, at about the same height; 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 New Philadelphia’s climate
What is the weather like in New Philadelphia?
A typical July afternoon reaches 84°, a January night drops to 20°. Colder January nights than 59% of U.S. towns; cooler July afternoons than 58% of U.S. towns.
How cold does it get in New Philadelphia in winter?
January nights average 20°. About 134 nights a year reach 32° or below and 4 reach 0° or below. In the coldest January of the last 30 years the month averaged 19°.
How hot does it get in New Philadelphia?
July, with a typical high of 84° and a low of 62°. About 13 days a year reach 90° (New Philadelphia, OH).
When is the first and last frost in New Philadelphia?
In half of years the last spring frost (32°) comes by April 30 and the first fall frost by October 15, about 167 frost-free days, at New Philadelphia, OH.
What growing zone is New Philadelphia in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −4°.
What is the best time of year to visit New Philadelphia?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is New Philadelphia 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 New Philadelphia.
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.