New Carlisle, Ohio climate: Normal weather by month, frost dates and records
New Carlisle's normal year runs from 17°F January nights to 86°F July afternoons, with 41.9 inches of precipitation and 19 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.1°C, January lows of −8°C, July highs of 30°C, 1,064 mm of precipitation a year.
- NOAA stationNew Carlisle
- Station IDUSC00335786
- Location39.93°N 84.03°W
- Elevation874 ft (266 m)
- From the centerunder 1 mile
- Population5,511
On October 22, the normal high in New Carlisle is 63°F and the normal low 39°F, and the chance of measurable rain or snow is 32%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for New Carlisle.
- Jan 38° 17°
- Feb 41° 20°
- Mar 52° 29°
- Apr 64° 38°
- May 74° 49°
- Jun 83° 59°
- Jul 86° 62°
- Aug 84° 60°
- Sep 78° 54°
- Oct 66° 42°
- Nov 53° 32°
- Dec 42° 24°
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 Carlisle each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 17°F. The most precipitation falls in May (4.52 in), the least in February (2.42 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 38°F | 17°F | 27.3°F | 3.16 | 6.2 | 13 | <1 | 27 | 9 h 40 min |
| February | 41°F | 20°F | 30.9°F | 2.42 | 5.3 | 11 | <1 | 22 | 10 h 40 min |
| March | 52°F | 29°F | 40.3°F | 3.32 | 3.0 | 12 | <1 | 23 | 11 h 50 min |
| April | 64°F | 38°F | 51.0°F | 4.25 | 0.1 | 13 | <1 | 9 | 13 h 10 min |
| May | 74°F | 49°F | 61.4°F | 4.52 | 0.0 | 14 | 2 | 1 | 14 h 20 min |
| June | 83°F | 59°F | 70.6°F | 4.36 | 0.0 | 12 | 5 | <1 | 15 h |
| July | 86°F | 62°F | 73.8°F | 4.46 | 0.0 | 10 | 10 | <1 | 14 h 50 min |
| August | 84°F | 60°F | 72.2°F | 3.11 | 0.0 | 9 | 4 | <1 | 13 h 50 min |
| September | 78°F | 54°F | 66.0°F | 3.21 | 0.0 | 9 | 4 | <1 | 12 h 30 min |
| October | 66°F | 42°F | 54.1°F | 2.89 | 0.0 | 10 | 1 | 5 | 11 h 10 min |
| November | 53°F | 32°F | 42.7°F | 3.07 | 0.4 | 10 | <1 | 17 | 10 h |
| December | 42°F | 24°F | 32.8°F | 3.11 | 3.7 | 12 | <1 | 26 | 9 h 20 min |
| Year (annual) | 63°F | 40°F | 51.9°F | 41.88 | 18.7 | 132 | 25 | 129 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −8°C | −2.6°C | 80 mm | 16 cm |
| February | 5°C | −6°C | −0.6°C | 61 mm | 13 cm |
| March | 11°C | −2°C | 4.6°C | 84 mm | 8 cm |
| April | 18°C | 3°C | 10.6°C | 108 mm | 0 cm |
| May | 23°C | 9°C | 16.3°C | 115 mm | 0 cm |
| June | 28°C | 15°C | 21.4°C | 111 mm | 0 cm |
| July | 30°C | 17°C | 23.2°C | 113 mm | 0 cm |
| August | 29°C | 16°C | 22.3°C | 79 mm | 0 cm |
| September | 26°C | 12°C | 18.9°C | 82 mm | 0 cm |
| October | 19°C | 5°C | 12.3°C | 73 mm | 0 cm |
| November | 12°C | 0°C | 5.9°C | 78 mm | 1 cm |
| December | 5°C | −5°C | 0.4°C | 79 mm | 9 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00335786; 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 Carlisle?
Normal highs sit between 65°F and 85°F in May, June, August, September and October. Of those, August has the fewest days with rain (9).
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 USC00335786.
When is the last frost in New Carlisle?
In New Carlisle, the last spring frost (32°F) comes after April 24 in half of years and after May 10 in one year in ten; the first autumn frost comes before October 17 in half of years and before October 4 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 241 year in 10 after May 10; 9 in 10 after April 10
- First autumn frost, half of years before
- October 171 year in 10 before October 4; 9 in 10 before October 29
NOAA puts the median frost-free season at 173 days, and the season without a hard freeze (28°F) at 197 days.
A hard freeze (28°F) comes after April 12 in half of springs and before October 27 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts New Carlisle in zone 6a in ZIP code 45344, the nearest ZIP area.
Frost dates for every NOAA station in Ohio · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00335786; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Carlisle?
In a normal year in New Carlisle, 25 days a year reach 90°F, 129 nights fall to 32°F or colder and 132 days bring measurable precipitation.
- Days at 90°F or more
- 25a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 129a normal year
- Days that stay below freezing
- 20high of 32°F or less
- Days with 0.01 inch of precipitation
- 132a normal year
- Days with 1 inch of snow or more
- 8a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00335786.
How sunny is New Carlisle?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around New Carlisle, 4.0 kWh per square metre a day. August is the sunniest month (81%) and December the cloudiest (58%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.8 |
| February | 62% | 2.6 |
| March | 65% | 3.6 |
| April | 71% | 4.9 |
| May | 72% | 5.5 |
| June | 78% | 6.2 |
| July | 79% | 6.0 |
| August | 81% | 5.5 |
| September | 79% | 4.6 |
| October | 72% | 3.2 |
| November | 69% | 2.2 |
| December | 58% | 1.5 |
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 Carlisle need?
A normal year in New Carlisle brings 5,595 heating degree days, 4% more than the median U.S. place (5,373), and 854 cooling degree days, 6% 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 3,221 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,167 | 0 |
| February | 955 | 0 |
| March | 766 | 0 |
| April | 424 | 3 |
| May | 159 | 47 |
| June | 17 | 183 |
| July | 1 | 273 |
| August | 5 | 228 |
| September | 79 | 107 |
| October | 352 | 14 |
| November | 671 | 0 |
| December | 999 | 0 |
| Year (annual) | 5,595 | 854 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00335786. 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 Carlisle been warmer than normal lately?
2025 averaged 51.8°F, 0.1°F below the 1991-2020 normal of 51.9°F. 2 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 52.5°F | +0.6°F | 44.20 | – |
| 2022 | 51.4°F | −0.5°F | 42.13 | 17.3 |
| 2024 | 54.5°F | +2.6°F | 43.83 | 6.5 |
| 2025 | 51.8°F | −0.1°F | 46.07 | 24.2 |
Source: observed years: ACIS, station USC00335786. A year counts only with all twelve months complete.
How does New Carlisle's climate compare?
New Carlisle is warmer than 58 of the other 98 places with their own NOAA record in Ohio, and wetter than 53. Across the 7,247 U.S. stations with normals, its annual mean of 51.9°F is warmer than 49%.
In the Köppen classification computed from these normals, New Carlisle 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 Carlisle share this climate record?
13 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.
- Fairborn, OH35,105 people · 9 mi S
- Park Layne, OH4,193 people · 3 mi S
- Yellow Springs, OH3,756 people · 12 mi SE
- Enon, OH2,448 people · 7 mi SE
- Green Meadows, OH2,137 people · 6 mi SE
- Holiday Valley, OH1,584 people · 7 mi SE
- Wright-Patterson AFB, OH1,560 people · 8 mi S
- Crystal Lakes, OH1,270 people · 3 mi S
- Medway, OH709 people · 3 mi S
- Christiansburg, OH503 people · 9 mi N
- North Hampton, OH452 people · 6 mi NE
- Brandt, OH302 people · 4 mi SW
- Donnelsville, OH257 people · 5 mi E
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about New Carlisle's climate
What is the coldest month in New Carlisle?
January, with a normal high of 38°F and a normal low of 17°F. The warmest is July (86°F by day, 62°F at night).
Does it snow in New Carlisle?
Yes: 19 inches in a normal year, falling on 12 days with 0.1 inch or more, the most in January (6.2 inches).
What is the rainiest month in New Carlisle?
May, with 4.52 in of precipitation in a normal year; the driest is February with 2.42 in.
What plant hardiness zone is New Carlisle in?
The USDA's 2023 map puts New Carlisle in zone 6a in ZIP code 45344, the nearest ZIP area.
How late can frost come in New Carlisle?
In half of years the last 32°F night comes after April 24; in one year in ten it comes after May 10. Waiting until May 10 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Ohio climateThe statewide normals and every place in the state
- Dayton, OH10 miles from this station, 53.9°F a year
- Springfield, OH12 miles from this station, 51.2°F a year
- Piqua, OH17 miles from this station, 52.7°F a year
- Urbana, OH17 miles from this station, 51.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made