New Philadelphia, Ohio climate: Normal weather by month, frost dates and records
New Philadelphia's normal year runs from 21°F January nights to 84°F July afternoons, with 38.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.0°C, January lows of −6°C, July highs of 29°C, 982 mm of precipitation a year.
- NOAA stationNew Philadelphia Clever Field
- Station IDUSW00004852
- Location40.47°N 81.42°W
- Elevation895 ft (273 m)
- From the center1 miles
- Population17,378
On October 23, the normal high in New Philadelphia is 62°F and the normal low 40°F, and the chance of measurable rain or snow is 44%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for New Philadelphia.
- Jan 37° 21°
- Feb 40° 23°
- Mar 50° 30°
- Apr 63° 40°
- May 73° 50°
- Jun 80° 59°
- Jul 84° 63°
- Aug 82° 60°
- Sep 76° 53°
- Oct 65° 42°
- Nov 52° 33°
- Dec 41° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in New Philadelphia each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 21°F. The most precipitation falls in June (4.23 in), the least in February (2.27 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 37°F | 21°F | 28.9°F | 2.62 | 13 | <1 | 26 | 9 h 30 min |
| February | 40°F | 23°F | 31.5°F | 2.27 | 12 | <1 | 24 | 10 h 40 min |
| March | 50°F | 30°F | 40.0°F | 3.05 | 13 | <1 | 20 | 11 h 50 min |
| April | 63°F | 40°F | 51.3°F | 3.78 | 14 | <1 | 7 | 13 h 10 min |
| May | 73°F | 50°F | 61.1°F | 3.77 | 16 | 1 | 1 | 14 h 20 min |
| June | 80°F | 59°F | 69.5°F | 4.23 | 15 | 2 | <1 | 15 h |
| July | 84°F | 63°F | 73.1°F | 3.74 | 15 | 5 | <1 | 14 h 50 min |
| August | 82°F | 60°F | 71.3°F | 3.65 | 15 | 4 | <1 | 13 h 50 min |
| September | 76°F | 53°F | 64.7°F | 2.97 | 15 | 2 | <1 | 12 h 30 min |
| October | 65°F | 42°F | 53.5°F | 3.16 | 14 | <1 | 4 | 11 h 10 min |
| November | 52°F | 33°F | 42.5°F | 2.70 | 12 | <1 | 15 | 10 h |
| December | 41°F | 26°F | 33.8°F | 2.73 | 13 | <1 | 24 | 9 h 20 min |
| Year (annual) | 62°F | 42°F | 51.8°F | 38.67 | 166 | 13 | 120 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 3°C | −6°C | −1.7°C | 67 mm |
| February | 5°C | −5°C | −0.3°C | 58 mm |
| March | 10°C | −1°C | 4.4°C | 77 mm |
| April | 17°C | 4°C | 10.7°C | 96 mm |
| May | 23°C | 10°C | 16.2°C | 96 mm |
| June | 27°C | 15°C | 20.8°C | 107 mm |
| July | 29°C | 17°C | 22.8°C | 95 mm |
| August | 28°C | 16°C | 21.8°C | 93 mm |
| September | 25°C | 12°C | 18.2°C | 75 mm |
| October | 18°C | 6°C | 11.9°C | 80 mm |
| November | 11°C | 1°C | 5.8°C | 69 mm |
| December | 5°C | −3°C | 1.0°C | 69 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00004852; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit New Philadelphia?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, June has the fewest days with rain (15).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00004852.
When is the last frost in New Philadelphia?
In New Philadelphia, the last spring frost (32°F) comes after April 26 in half of years and after May 15 in one year in ten; the first autumn frost comes before October 21 in half of years and before October 5 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 261 year in 10 after May 15; 9 in 10 after April 14
- First autumn frost, half of years before
- October 211 year in 10 before October 5; 9 in 10 before November 3
NOAA puts the median frost-free season at 176 days, and the season without a hard freeze (28°F) at 200 days.
A hard freeze (28°F) comes after April 16 in half of springs and before November 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts New Philadelphia in zone 6b in ZIP code 44663, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, New Philadelphia's NOAA station is in zone 6b: the coldest night of a typical year reaches −5°F (22 complete years).
Frost dates for every NOAA station in Ohio · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00004852; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in New Philadelphia?
In a normal year in New Philadelphia, 13 days a year reach 90°F, 120 nights fall to 32°F or colder and 166 days bring measurable precipitation.
- Days at 90°F or more
- 13a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 120a normal year
- Days that stay below freezing
- 30high of 32°F or less
- Days with 0.01 inch of precipitation
- 166a normal year
The highest temperature in New Philadelphia's official record (kept by the National Weather Service since 1948) is 102°F, on July 17, 1988; the lowest is −22°F, on January 20, 1994.
The wettest calendar year on that record is 2011, with 56.33 in; the snowiest season is 1963–64, with 59.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00004852; records: ACIS (NOAA Regional Climate Centers), NWS threaded record PHDthr. Records use complete months only; a month missing more than three days is left out.
How sunny is New Philadelphia?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around New Philadelphia, 3.8 kWh per square metre a day. August is the sunniest month (79%) and December the cloudiest (53%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 53% | 1.6 |
| February | 59% | 2.4 |
| March | 62% | 3.4 |
| April | 67% | 4.7 |
| May | 70% | 5.4 |
| June | 75% | 6.0 |
| July | 78% | 6.0 |
| August | 79% | 5.4 |
| September | 77% | 4.4 |
| October | 68% | 2.9 |
| November | 65% | 2.0 |
| December | 53% | 1.3 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does New Philadelphia need?
A normal year in New Philadelphia brings 5,569 heating degree days, 4% more than the median U.S. place (5,373), and 779 cooling degree days, 14% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,154 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,119 | 0 |
| February | 940 | 0 |
| March | 776 | 1 |
| April | 418 | 7 |
| May | 175 | 54 |
| June | 30 | 163 |
| July | 3 | 256 |
| August | 8 | 205 |
| September | 90 | 81 |
| October | 371 | 13 |
| November | 674 | 0 |
| December | 967 | 0 |
| Year (annual) | 5,569 | 779 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00004852. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has New Philadelphia been warmer than normal lately?
2025 averaged 51.8°F, equal to the 1991-2020 normal of 51.8°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.4°F | +1.6°F | 34.54 |
| 2022 | 52.1°F | +0.3°F | 39.75 |
| 2023 | 54.0°F | +2.2°F | 41.25 |
| 2024 | 55.1°F | +3.3°F | – |
| 2025 | 51.8°F | at normal | 26.62 |
Source: observed years: ACIS, station USW00004852. A year counts only with all twelve months complete.
How does New Philadelphia's climate compare?
New Philadelphia is warmer than 55 of the other 98 places with their own NOAA record in Ohio, and wetter than 20. Across the 7,247 U.S. stations with normals, its annual mean of 51.8°F is warmer than 49%.
In the Köppen classification computed from these normals, New Philadelphia is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near New Philadelphia share this climate record?
18 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Dover, OH12,946 people · 5 mi NW
- Wilkshire Hills, OH3,048 people · 12 mi N
- Strasburg, OH2,747 people · 11 mi NW
- Sugarcreek, OH2,316 people · 12 mi W
- Lake Mohawk, OH1,372 people · 18 mi NE
- Magnolia, OH1,014 people · 14 mi NE
- Bolivar, OH964 people · 13 mi N
- Beach City, OH924 people · 15 mi NW
- Waynesburg, OH922 people · 16 mi NE
- East Sparta, OH744 people · 14 mi N
- Mineral City, OH616 people · 10 mi N
- Dundee, OH397 people · 12 mi NW
- Barnhill, OH374 people · 3 mi SE
- Roswell, OH213 people · 4 mi E
- Parral, OH198 people · 7 mi NW
- Zoar, OH170 people · 10 mi N
- Stone Creek, OH146 people · 9 mi SW
- Sandyville, OH77 people · 12 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do New Philadelphia's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near New Philadelphia. This page uses New Philadelphia Clever Field; the other differs by site and elevation:
| Station | From the center | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| New Philadelphia station USC00335894 | in town | 925 ft | 50.8°F | 20°F | 84°F | 42.1 | – | April 30 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about New Philadelphia's climate
What is the coldest month in New Philadelphia?
January, with a normal high of 37°F and a normal low of 21°F. The warmest is July (84°F by day, 63°F at night).
What is the rainiest month in New Philadelphia?
June, with 4.23 in of precipitation in a normal year; the driest is February with 2.27 in.
What plant hardiness zone is New Philadelphia in?
The USDA's 2023 map puts New Philadelphia in zone 6b in ZIP code 44663, the nearest ZIP area. By the same method at New Philadelphia's NOAA station, the coldest night of a typical year reaches −5°F (22 years, 1991-2020): zone 6b.
How late can frost come in New Philadelphia?
In half of years the last 32°F night comes after April 26; in one year in ten it comes after May 15. Waiting until May 15 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Ohio climateThe statewide normals and every place in the state
- Dennison, OH6 miles from this station, 51.1°F a year
- Cadiz, OH27 miles from this station, 50.8°F a year
- Millersburg, OH27 miles from this station, 50.2°F a year
- Coshocton, OH29 miles from this station, 51.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made