Huntsville, Ohio climate: Normal weather by month, frost dates and records
Huntsville's normal year runs from 18°F January nights to 86°F July afternoons, with 41.5 inches of precipitation 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, 1,055 mm of precipitation a year.
- NOAA stationHuntsville (3 mi N)
- Station IDUSC00333915
- Location40.48°N 83.81°W
- Elevation1,034 ft (315 m)
- From the center3 miles
- Population408
On October 23, the normal high in Huntsville is 63°F and the normal low 40°F, and the chance of measurable rain or snow is 36%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Huntsville.
- Jan 36° 18°
- Feb 41° 21°
- Mar 50° 29°
- Apr 63° 39°
- May 74° 50°
- Jun 83° 59°
- Jul 86° 62°
- Aug 85° 61°
- Sep 79° 54°
- Oct 67° 43°
- Nov 52° 33°
- Dec 42° 25°
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 Huntsville each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 18°F. The most precipitation falls in June (4.71 in), the least in February (2.33 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 36°F | 18°F | 27.4°F | 2.82 | 14 | <1 | 28 | 9 h 30 min |
| February | 41°F | 21°F | 30.7°F | 2.33 | 10 | <1 | 25 | 10 h 40 min |
| March | 50°F | 29°F | 39.3°F | 2.91 | 13 | <1 | 21 | 11 h 50 min |
| April | 63°F | 39°F | 51.1°F | 4.18 | 14 | <1 | 8 | 13 h 10 min |
| May | 74°F | 50°F | 62.0°F | 4.46 | 14 | 1 | <1 | 14 h 20 min |
| June | 83°F | 59°F | 71.0°F | 4.71 | 12 | 5 | <1 | 15 h |
| July | 86°F | 62°F | 74.0°F | 4.54 | 10 | 10 | <1 | 14 h 50 min |
| August | 85°F | 61°F | 72.5°F | 3.63 | 9 | 5 | <1 | 13 h 50 min |
| September | 79°F | 54°F | 66.4°F | 3.12 | 9 | 4 | <1 | 12 h 30 min |
| October | 67°F | 43°F | 54.7°F | 3.03 | 11 | <1 | 2 | 11 h 10 min |
| November | 52°F | 33°F | 42.5°F | 3.18 | 11 | <1 | 16 | 10 h |
| December | 42°F | 25°F | 33.1°F | 2.64 | 13 | <1 | 24 | 9 h 20 min |
| Year (annual) | 63°F | 41°F | 52.0°F | 41.55 | 140 | 24 | 126 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 2°C | −8°C | −2.6°C | 72 mm |
| February | 5°C | −6°C | −0.7°C | 59 mm |
| March | 10°C | −2°C | 4.1°C | 74 mm |
| April | 17°C | 4°C | 10.6°C | 106 mm |
| May | 23°C | 10°C | 16.7°C | 113 mm |
| June | 28°C | 15°C | 21.7°C | 120 mm |
| July | 30°C | 17°C | 23.3°C | 115 mm |
| August | 29°C | 16°C | 22.5°C | 92 mm |
| September | 26°C | 12°C | 19.1°C | 79 mm |
| October | 19°C | 6°C | 12.6°C | 77 mm |
| November | 11°C | 0°C | 5.8°C | 81 mm |
| December | 5°C | −4°C | 0.6°C | 67 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Kenton (16 miles away), gets 26 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00333915; 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 Huntsville?
Normal highs sit between 65°F and 85°F in May, June, August, September and October. Of those, September 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 USC00333915.
When is the last frost in Huntsville?
In Huntsville, the last spring frost (32°F) comes after April 22 in half of years and after May 6 in one year in ten; the first autumn frost comes before October 27 in half of years and before October 14 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 221 year in 10 after May 6; 9 in 10 after April 8
- First autumn frost, half of years before
- October 271 year in 10 before October 14; 9 in 10 before November 7
NOAA puts the median frost-free season at 188 days, and the season without a hard freeze (28°F) at 211 days.
A hard freeze (28°F) comes after April 10 in half of springs and before November 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Huntsville in zone 6a in ZIP code 43324, 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 USC00333915; 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 Huntsville?
In a normal year in Huntsville, 24 days a year reach 90°F, 126 nights fall to 32°F or colder and 140 days bring measurable precipitation.
- Days at 90°F or more
- 24a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 126a normal year
- Days that stay below freezing
- 31high of 32°F or less
- Days with 0.01 inch of precipitation
- 140a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00333915.
How sunny is Huntsville?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Huntsville, 3.9 kWh per square metre a day. August is the sunniest month (81%) and December the cloudiest (56%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 57% | 1.7 |
| February | 63% | 2.6 |
| March | 63% | 3.5 |
| April | 69% | 4.8 |
| May | 72% | 5.5 |
| June | 77% | 6.2 |
| July | 80% | 6.2 |
| August | 81% | 5.6 |
| September | 78% | 4.5 |
| October | 70% | 3.0 |
| November | 67% | 2.1 |
| December | 56% | 1.4 |
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 Huntsville need?
A normal year in Huntsville brings 5,614 heating degree days, 4% more than the median U.S. place (5,373), and 924 cooling degree days, 2% more 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 3,341 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,167 | 0 |
| February | 962 | 0 |
| March | 798 | 1 |
| April | 422 | 4 |
| May | 160 | 67 |
| June | 15 | 195 |
| July | 4 | 283 |
| August | 5 | 237 |
| September | 78 | 119 |
| October | 337 | 17 |
| November | 676 | 1 |
| December | 990 | 0 |
| Year (annual) | 5,614 | 924 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00333915. 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 Huntsville been warmer than normal lately?
2022 averaged 51.2°F, 0.8°F below the 1991-2020 normal of 52.0°F. 1 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.0°F | +1.0°F | 39.78 |
| 2022 | 51.2°F | −0.8°F | 34.77 |
Source: observed years: ACIS, station USC00333915. A year counts only with all twelve months complete.
How does Huntsville's climate compare?
Huntsville is warmer than 60 of the other 98 places with their own NOAA record in Ohio, and wetter than 47. Across the 7,247 U.S. stations with normals, its annual mean of 52.0°F is warmer than 49%.
In the Köppen classification computed from these normals, Huntsville 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 Huntsville share this climate record?
8 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.
- Jackson Center, OH1,438 people · 12 mi W
- Russells Point, OH1,320 people · 4 mi W
- Lakeview, OH1,186 people · 6 mi W
- Belle Center, OH804 people · 4 mi NE
- Chippewa Park, OH519 people · 5 mi NW
- New Hampshire, OH505 people · 9 mi NW
- Rushsylvania, OH493 people · 8 mi E
- Lewistown, OH169 people · 5 mi SW
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 Huntsville's climate
What is the coldest month in Huntsville?
January, with a normal high of 36°F and a normal low of 18°F. The warmest is July (86°F by day, 62°F at night).
Does it snow in Huntsville?
Yes. NOAA publishes no 1991-2020 snowfall normal for Huntsville's NOAA station; the nearest record that keeps one, Kenton (16 miles away), records 26 inches of snow in a normal year.
What is the rainiest month in Huntsville?
June, with 4.71 in of precipitation in a normal year; the driest is February with 2.33 in.
What plant hardiness zone is Huntsville in?
The USDA's 2023 map puts Huntsville in zone 6a in ZIP code 43324, the nearest ZIP area.
How late can frost come in Huntsville?
In half of years the last 32°F night comes after April 22; in one year in ten it comes after May 6. Waiting until May 6 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Ohio climateThe statewide normals and every place in the state
- Bellefontaine, OH9 miles from this station, 50.6°F a year
- Kenton, OH16 miles from this station, 50.8°F a year
- Lima, OH19 miles from this station, 51.4°F a year
- Sidney, OH23 miles from this station, 50.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made