Warren, Ohio climate: Normal weather by month, frost dates and records
Warren's normal year runs from 17°F January nights to 83°F July afternoons, with 40.8 inches of precipitation and 28 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.4°C, January lows of −8°C, July highs of 28°C, 1,037 mm of precipitation a year.
- NOAA stationWarren (3 mi S)
- Station IDUSC00338769
- Location41.20°N 80.81°W
- Elevation900 ft (274 m)
- From the center3 miles
- Population38,683
On October 22, the normal high in Warren is 61°F and the normal low 37°F, and the chance of measurable rain or snow is 42%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Warren.
- Jan 35° 17°
- Feb 38° 17°
- Mar 47° 25°
- Apr 60° 35°
- May 71° 45°
- Jun 79° 54°
- Jul 83° 59°
- Aug 82° 57°
- Sep 75° 50°
- Oct 63° 40°
- Nov 50° 31°
- Dec 39° 23°
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 Warren each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 17°F. The most precipitation falls in July (4.64 in), the least in February (2.31 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 35°F | 17°F | 25.8°F | 3.11 | 9.6 | 16 | <1 | 28 | 9 h 30 min |
| February | 38°F | 17°F | 27.4°F | 2.31 | 6.4 | 11 | <1 | 25 | 10 h 40 min |
| March | 47°F | 25°F | 35.8°F | 3.13 | 4.4 | 12 | <1 | 25 | 11 h 50 min |
| April | 60°F | 35°F | 47.6°F | 3.76 | 0.2 | 14 | <1 | 14 | 13 h 20 min |
| May | 71°F | 45°F | 58.3°F | 3.76 | 0.0 | 14 | <1 | 3 | 14 h 30 min |
| June | 79°F | 54°F | 66.7°F | 4.10 | 0.0 | 12 | 2 | <1 | 15 h 10 min |
| July | 83°F | 59°F | 70.7°F | 4.64 | 0.0 | 11 | 4 | <1 | 14 h 50 min |
| August | 82°F | 57°F | 69.1°F | 3.49 | 0.0 | 10 | 3 | <1 | 13 h 50 min |
| September | 75°F | 50°F | 62.5°F | 3.67 | 0.0 | 11 | 1 | <1 | 12 h 30 min |
| October | 63°F | 40°F | 51.3°F | 3.30 | 0.0 | 13 | <1 | 8 | 11 h 10 min |
| November | 50°F | 31°F | 40.5°F | 2.61 | 0.8 | 12 | <1 | 18 | 9 h 50 min |
| December | 39°F | 23°F | 31.3°F | 2.93 | 6.5 | 13 | <1 | 26 | 9 h 10 min |
| Year (annual) | 60°F | 38°F | 48.9°F | 40.81 | 27.9 | 150 | 11 | 147 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −8°C | −3.4°C | 79 mm | 24 cm |
| February | 3°C | −8°C | −2.6°C | 59 mm | 16 cm |
| March | 8°C | −4°C | 2.1°C | 80 mm | 11 cm |
| April | 16°C | 2°C | 8.7°C | 96 mm | 1 cm |
| May | 22°C | 7°C | 14.6°C | 96 mm | 0 cm |
| June | 26°C | 12°C | 19.3°C | 104 mm | 0 cm |
| July | 28°C | 15°C | 21.5°C | 118 mm | 0 cm |
| August | 28°C | 14°C | 20.6°C | 89 mm | 0 cm |
| September | 24°C | 10°C | 16.9°C | 93 mm | 0 cm |
| October | 17°C | 4°C | 10.7°C | 84 mm | 0 cm |
| November | 10°C | −1°C | 4.7°C | 66 mm | 2 cm |
| December | 4°C | −5°C | −0.4°C | 74 mm | 17 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00338769; 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 Warren?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, August has the fewest days with rain (10).
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 USC00338769.
When is the last frost in Warren?
In Warren, the last spring frost (32°F) comes after May 8 in half of years and after May 25 in one year in ten; the first autumn frost comes before October 12 in half of years and before September 30 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 81 year in 10 after May 25; 9 in 10 after April 23
- First autumn frost, half of years before
- October 121 year in 10 before September 30; 9 in 10 before October 26
NOAA puts the median frost-free season at 157 days, and the season without a hard freeze (28°F) at 179 days.
A hard freeze (28°F) comes after April 27 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Warren in zone 6a across its 3 ZIP code areas (6a in 44483, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Warren's NOAA station is in zone 6a: the coldest night of a typical year reaches −7°F (27 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 USC00338769; 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.
What hardiness zone is each Warren ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Warren's 3 ZIP code areas are all in zone 6a. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Warren?
In a normal year in Warren, 11 days a year reach 90°F, 147 nights fall to 32°F or colder and 150 days bring measurable precipitation.
- Days at 90°F or more
- 11a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 147a normal year
- Days that stay below freezing
- 36high of 32°F or less
- Days with 0.01 inch of precipitation
- 150a normal year
- Days with 1 inch of snow or more
- 12a normal year
The highest temperature in this station's record (since 1893) is 105°F, on July 9, 1936; the lowest is −26°F, on January 21, 1984.
The wettest calendar year on that record is 2006, with 50.91 in; the snowiest season is 1942–43, with 80.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00338769; records: ACIS (NOAA Regional Climate Centers), station USC00338769. Records use complete months only; a month missing more than three days is left out.
How sunny is Warren?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Warren, 3.6 kWh per square metre a day. July is the sunniest month (77%) and December the cloudiest (47%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 51% | 1.4 |
| February | 57% | 2.3 |
| March | 60% | 3.3 |
| April | 65% | 4.5 |
| May | 69% | 5.3 |
| June | 74% | 5.9 |
| July | 77% | 5.9 |
| August | 77% | 5.2 |
| September | 74% | 4.2 |
| October | 64% | 2.7 |
| November | 61% | 1.8 |
| December | 47% | 1.1 |
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 Warren need?
A normal year in Warren brings 6,380 heating degree days, 19% more than the median U.S. place (5,373), and 552 cooling degree days, 39% 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 2,658 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,217 | 0 |
| February | 1,053 | 0 |
| March | 907 | 0 |
| April | 524 | 3 |
| May | 244 | 36 |
| June | 60 | 111 |
| July | 12 | 189 |
| August | 22 | 151 |
| September | 130 | 57 |
| October | 433 | 6 |
| November | 735 | 0 |
| December | 1,045 | 0 |
| Year (annual) | 6,380 | 552 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00338769. 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 Warren been warmer than normal lately?
2025 averaged 48.1°F, 0.8°F below the 1991-2020 normal of 48.9°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 49.8°F | +0.9°F | 36.43 | 6.0 |
| 2022 | 48.1°F | −0.8°F | 35.21 | 31.5 |
| 2023 | 50.5°F | +1.6°F | 40.20 | – |
| 2024 | 51.4°F | +2.5°F | 40.19 | 2.8 |
| 2025 | 48.1°F | −0.8°F | 35.27 | – |
Over 99 complete years from 1883 to 2025, the station's annual mean temperature rose at a fitted 3.0°F per century (+0.17°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00338769; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Warren's climate compare?
Warren is warmer than 4 of the other 98 places with their own NOAA record in Ohio, and wetter than 39. Across the 7,247 U.S. stations with normals, its annual mean of 48.9°F is warmer than 36%.
In the Köppen classification computed from these normals, Warren is Dfb: continental, no dry season, warm 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 Warren share this climate record?
12 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.
- Austintown, OH30,215 people · 8 mi SE
- Niles, OH18,238 people · 3 mi E
- Newton Falls, OH4,536 people · 8 mi W
- Mineral Ridge, OH4,012 people · 5 mi SE
- Lordstown, OH3,331 people · 4 mi SW
- McDonald, OH3,126 people · 5 mi SE
- Bolindale, OH1,652 people · 2 mi E
- McKinley Heights, OH1,231 people · 5 mi E
- Leavittsburg, OH1,219 people · 5 mi NW
- Craig Beach, OH1,063 people · 11 mi SW
- Hilltop, OH643 people · 5 mi SE
- Lake Milton, OH533 people · 11 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 Warren's climate
What is the coldest month in Warren?
January, with a normal high of 35°F and a normal low of 17°F. The warmest is July (83°F by day, 59°F at night).
Does it snow in Warren?
Yes: 28 inches in a normal year, falling on 21 days with 0.1 inch or more, the most in January (9.6 inches).
What is the rainiest month in Warren?
July, with 4.64 in of precipitation in a normal year; the driest is February with 2.31 in.
What plant hardiness zone is Warren in?
The USDA's 2023 map puts Warren in zone 6a across its 3 ZIP code areas (6a in 44483, the largest). By the same method at Warren's NOAA station, the coldest night of a typical year reaches −7°F (27 years, 1991-2020): zone 6a.
How late can frost come in Warren?
In half of years the last 32°F night comes after May 8; in one year in ten it comes after May 25. Waiting until May 25 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Ohio climateThe statewide normals and every place in the state
- Mosquito Creek Lake, OH7 miles from this station, 49.2°F a year
- Youngstown, OH8 miles from this station, 49.9°F a year
- Hiram, OH13 miles from this station, 48.1°F a year
- Ravenna, OH25 miles from this station, 49.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made