Millersburg, Ohio climate: Normal weather by month, frost dates and records
Millersburg's normal year runs from 18°F January nights to 84°F July afternoons, with 40.7 inches of precipitation and 20 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.1°C, January lows of −8°C, July highs of 29°C, 1,035 mm of precipitation a year.
- NOAA stationMillersburg
- Station IDUSC00335297
- Location40.54°N 81.92°W
- Elevation819 ft (250 m)
- Population3,264
On October 23, the normal high in Millersburg is 62°F and the normal low 37°F, and the chance of measurable rain or snow is 33%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Millersburg.
- Jan 36° 18°
- Feb 39° 19°
- Mar 49° 27°
- Apr 62° 36°
- May 72° 47°
- Jun 80° 56°
- Jul 84° 60°
- Aug 82° 58°
- Sep 76° 51°
- Oct 65° 40°
- Nov 52° 31°
- Dec 40° 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 Millersburg each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 18°F. The most precipitation falls in June (4.88 in), the least in February (2.08 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 36°F | 18°F | 26.8°F | 2.86 | 7.3 | 11 | <1 | 27 | 9 h 30 min |
| February | 39°F | 19°F | 29.1°F | 2.08 | 4.8 | 9 | <1 | 25 | 10 h 40 min |
| March | 49°F | 27°F | 37.9°F | 3.14 | 2.9 | 10 | <1 | 23 | 11 h 50 min |
| April | 62°F | 36°F | 49.3°F | 3.87 | 0.2 | 12 | <1 | 11 | 13 h 10 min |
| May | 72°F | 47°F | 59.5°F | 4.23 | 0.0 | 13 | <1 | 2 | 14 h 20 min |
| June | 80°F | 56°F | 68.3°F | 4.88 | 0.0 | 12 | 3 | <1 | 15 h |
| July | 84°F | 60°F | 72.0°F | 4.23 | 0.0 | 11 | 5 | <1 | 14 h 50 min |
| August | 82°F | 58°F | 70.4°F | 3.37 | 0.0 | 9 | 3 | <1 | 13 h 50 min |
| September | 76°F | 51°F | 63.5°F | 3.29 | 0.0 | 8 | 1 | <1 | 12 h 30 min |
| October | 65°F | 40°F | 52.1°F | 3.08 | 0.0 | 10 | <1 | 8 | 11 h 10 min |
| November | 52°F | 31°F | 41.1°F | 2.83 | 0.7 | 9 | <1 | 19 | 10 h |
| December | 40°F | 24°F | 32.0°F | 2.87 | 4.2 | 10 | <1 | 26 | 9 h 20 min |
| Year (annual) | 61°F | 39°F | 50.2°F | 40.73 | 20.1 | 124 | 12 | 141 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −8°C | −2.9°C | 73 mm | 19 cm |
| February | 4°C | −7°C | −1.6°C | 53 mm | 12 cm |
| March | 9°C | −3°C | 3.3°C | 80 mm | 7 cm |
| April | 17°C | 2°C | 9.6°C | 98 mm | 1 cm |
| May | 22°C | 8°C | 15.3°C | 107 mm | 0 cm |
| June | 27°C | 13°C | 20.2°C | 124 mm | 0 cm |
| July | 29°C | 16°C | 22.2°C | 107 mm | 0 cm |
| August | 28°C | 15°C | 21.3°C | 86 mm | 0 cm |
| September | 25°C | 10°C | 17.5°C | 84 mm | 0 cm |
| October | 18°C | 4°C | 11.2°C | 78 mm | 0 cm |
| November | 11°C | −1°C | 5.1°C | 72 mm | 2 cm |
| December | 5°C | −5°C | 0.0°C | 73 mm | 11 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00335297; 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 Millersburg?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (8).
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 USC00335297.
When is the last frost in Millersburg?
In Millersburg, the last spring frost (32°F) comes after May 2 in half of years and after May 21 in one year in ten; the first autumn frost comes before October 14 in half of years and before October 1 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
- May 21 year in 10 after May 21; 9 in 10 after April 18
- First autumn frost, half of years before
- October 141 year in 10 before October 1; 9 in 10 before October 27
NOAA puts the median frost-free season at 164 days, and the season without a hard freeze (28°F) at 187 days.
A hard freeze (28°F) comes after April 21 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Millersburg in zone 6a in ZIP code 44654, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Millersburg's NOAA station is in zone 6a: the coldest night of a typical year reaches −8°F (28 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 USC00335297; 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 Millersburg?
In a normal year in Millersburg, 12 days a year reach 90°F, 141 nights fall to 32°F or colder and 124 days bring measurable precipitation.
- Days at 90°F or more
- 12a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 141a normal year
- Days that stay below freezing
- 33high of 32°F or less
- Days with 0.01 inch of precipitation
- 124a normal year
- Days with 1 inch of snow or more
- 8a normal year
The highest temperature in this station's record (since 1919) is 104°F, on July 20, 1930; the lowest is −35°F, on January 20, 1994.
The wettest calendar year on that record is 2018, with 54.04 in; the snowiest season is 1977–78, with 54.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00335297; records: ACIS (NOAA Regional Climate Centers), station USC00335297. Records use complete months only; a month missing more than three days is left out.
How sunny is Millersburg?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Millersburg, 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 Millersburg need?
A normal year in Millersburg brings 6,046 heating degree days, 13% more than the median U.S. place (5,373), and 664 cooling degree days, 27% 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 2,884 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,186 | 0 |
| February | 1,007 | 0 |
| March | 840 | 0 |
| April | 477 | 4 |
| May | 213 | 42 |
| June | 41 | 140 |
| July | 6 | 223 |
| August | 13 | 179 |
| September | 113 | 66 |
| October | 410 | 8 |
| November | 719 | 0 |
| December | 1,021 | 0 |
| Year (annual) | 6,046 | 664 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00335297. 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 Millersburg been warmer than normal lately?
2024 averaged 52.7°F, 2.5°F above the 1991-2020 normal of 50.2°F. 2 of the 3 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2022 | 49.5°F | −0.8°F | – | 25.8 |
| 2023 | 51.3°F | +1.1°F | 36.71 | 5.2 |
| 2024 | 52.7°F | +2.5°F | 39.47 | 11.7 |
Over 86 complete years from 1920 to 2025, the station's annual mean temperature rose at a fitted 2.1°F per century (+0.11°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00335297; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Millersburg's climate compare?
Millersburg is warmer than 20 of the other 98 places with their own NOAA record in Ohio, and wetter than 36. Across the 7,247 U.S. stations with normals, its annual mean of 50.2°F is warmer than 41%.
In the Köppen classification computed from these normals, Millersburg 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 Millersburg share this climate record?
10 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.
- Berlin, OH1,139 people · 6 mi E
- Walnut Creek, OH1,078 people · 10 mi E
- Baltic, OH828 people · 13 mi SE
- Killbuck, OH812 people · 4 mi SW
- Lake Buckhorn, OH593 people · 5 mi S
- Holmesville, OH375 people · 6 mi N
- Glenmont, OH242 people · 9 mi W
- Nashville, OH182 people · 11 mi W
- Winesburg, OH176 people · 13 mi NE
- Mount Hope, OH98 people · 10 mi NE
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 Millersburg's climate
What is the coldest month in Millersburg?
January, with a normal high of 36°F and a normal low of 18°F. The warmest is July (84°F by day, 60°F at night).
Does it snow in Millersburg?
Yes: 20 inches in a normal year, falling on 13 days with 0.1 inch or more, the most in January (7.3 inches).
What is the rainiest month in Millersburg?
June, with 4.88 in of precipitation in a normal year; the driest is February with 2.08 in.
What plant hardiness zone is Millersburg in?
The USDA's 2023 map puts Millersburg in zone 6a in ZIP code 44654, the nearest ZIP area. By the same method at Millersburg's NOAA station, the coldest night of a typical year reaches −8°F (28 years, 1991-2020): zone 6a.
How late can frost come in Millersburg?
In half of years the last 32°F night comes after May 2; in one year in ten it comes after May 21. Waiting until May 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Ohio climateThe statewide normals and every place in the state
- Wooster, OH16 miles from this station, 50.2°F a year
- Coshocton, OH21 miles from this station, 51.4°F a year
- Danville, OH21 miles from this station, 49.0°F a year
- New Philadelphia, OH27 miles from this station, 51.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made