Wauseon, Ohio climate: Normal weather by month, frost dates and records
Wauseon's normal year runs from 17°F January nights to 84°F July afternoons, with 35.0 inches of precipitation and 27 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.6°C, January lows of −8°C, July highs of 29°C, 890 mm of precipitation a year.
- NOAA stationWauseon Water Treatment Plant
- Station IDUSC00338822
- Location41.52°N 84.15°W
- Elevation750 ft (229 m)
- Population7,455
On October 14, the normal high in Wauseon is 64°F and the normal low 41°F, and the chance of measurable rain or snow is 30%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Wauseon.
- Jan 32° 17°
- Feb 35° 18°
- Mar 46° 26°
- Apr 59° 36°
- May 71° 48°
- Jun 80° 58°
- Jul 84° 61°
- Aug 81° 59°
- Sep 76° 52°
- Oct 63° 41°
- Nov 48° 31°
- Dec 37° 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 Wauseon each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 17°F. The most precipitation falls in May (3.86 in), the least in February (1.93 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 32°F | 17°F | 24.3°F | 2.16 | 9.2 | 11 | <1 | 28 | 9 h 30 min |
| February | 35°F | 18°F | 26.6°F | 1.93 | 7.0 | 9 | <1 | 26 | 10 h 40 min |
| March | 46°F | 26°F | 35.9°F | 2.35 | 4.0 | 9 | <1 | 23 | 11 h 50 min |
| April | 59°F | 36°F | 47.8°F | 3.18 | 0.4 | 11 | <1 | 9 | 13 h 20 min |
| May | 71°F | 48°F | 59.2°F | 3.86 | 0.0 | 12 | <1 | 1 | 14 h 30 min |
| June | 80°F | 58°F | 68.8°F | 3.67 | 0.0 | 10 | 3 | <1 | 15 h 10 min |
| July | 84°F | 61°F | 72.3°F | 3.75 | 0.0 | 8 | 5 | <1 | 14 h 50 min |
| August | 81°F | 59°F | 70.1°F | 3.52 | 0.0 | 9 | 2 | <1 | 13 h 50 min |
| September | 76°F | 52°F | 63.8°F | 3.03 | 0.0 | 8 | 1 | <1 | 12 h 30 min |
| October | 63°F | 41°F | 51.9°F | 2.65 | 0.0 | 9 | <1 | 5 | 11 h 10 min |
| November | 48°F | 31°F | 39.8°F | 2.67 | 0.9 | 10 | <1 | 18 | 9 h 50 min |
| December | 37°F | 23°F | 29.8°F | 2.27 | 5.3 | 10 | <1 | 26 | 9 h 10 min |
| Year (annual) | 59°F | 39°F | 49.2°F | 35.04 | 26.8 | 115 | 13 | 137 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 0°C | −8°C | −4.3°C | 55 mm | 23 cm |
| February | 2°C | −8°C | −3.0°C | 49 mm | 18 cm |
| March | 8°C | −3°C | 2.2°C | 60 mm | 10 cm |
| April | 15°C | 2°C | 8.8°C | 81 mm | 1 cm |
| May | 22°C | 9°C | 15.1°C | 98 mm | 0 cm |
| June | 27°C | 14°C | 20.4°C | 93 mm | 0 cm |
| July | 29°C | 16°C | 22.4°C | 95 mm | 0 cm |
| August | 27°C | 15°C | 21.2°C | 89 mm | 0 cm |
| September | 24°C | 11°C | 17.7°C | 77 mm | 0 cm |
| October | 17°C | 5°C | 11.1°C | 67 mm | 0 cm |
| November | 9°C | 0°C | 4.3°C | 68 mm | 2 cm |
| December | 3°C | −5°C | −1.2°C | 58 mm | 13 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00338822; 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 Wauseon?
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 USC00338822.
When is the last frost in Wauseon?
In Wauseon, the last spring frost (32°F) comes after April 29 in half of years and after May 16 in one year in ten; the first autumn frost comes before October 16 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
- April 291 year in 10 after May 16; 9 in 10 after April 14
- First autumn frost, half of years before
- October 161 year in 10 before September 30; 9 in 10 before October 31
NOAA puts the median frost-free season at 170 days, and the season without a hard freeze (28°F) at 194 days.
A hard freeze (28°F) comes after April 16 in half of springs and before October 29 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Wauseon in zone 6a in ZIP code 43567, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Wauseon's NOAA station is in zone 6a: the coldest night of a typical year reaches −7°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 USC00338822; 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 Wauseon?
In a normal year in Wauseon, 13 days a year reach 90°F, 137 nights fall to 32°F or colder and 115 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
- 137a normal year
- Days that stay below freezing
- 43high of 32°F or less
- Days with 0.01 inch of precipitation
- 115a normal year
- Days with 1 inch of snow or more
- 11a normal year
The highest temperature in this station's record (since 1893) is 109°F, on July 14, 1936; the lowest is −24°F, on January 21, 1984.
The wettest calendar year on that record is 1950, with 51.50 in; the snowiest season is 2013–14, with 77.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00338822; records: ACIS (NOAA Regional Climate Centers), station USC00338822. Records use complete months only; a month missing more than three days is left out.
How sunny is Wauseon?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Wauseon, 3.9 kWh per square metre a day. July is the sunniest month (81%) and December the cloudiest (56%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 58% | 1.6 |
| February | 63% | 2.5 |
| March | 65% | 3.5 |
| April | 69% | 4.7 |
| May | 71% | 5.5 |
| June | 77% | 6.2 |
| July | 81% | 6.2 |
| August | 80% | 5.4 |
| September | 78% | 4.4 |
| October | 69% | 2.9 |
| November | 65% | 1.9 |
| 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 Wauseon need?
A normal year in Wauseon brings 6,410 heating degree days, 19% more than the median U.S. place (5,373), and 683 cooling degree days, 25% 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 2,856 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,262 | 0 |
| February | 1,075 | 0 |
| March | 901 | 0 |
| April | 519 | 3 |
| May | 220 | 42 |
| June | 38 | 152 |
| July | 6 | 231 |
| August | 16 | 174 |
| September | 108 | 72 |
| October | 416 | 8 |
| November | 758 | 0 |
| December | 1,091 | 0 |
| Year (annual) | 6,410 | 683 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00338822. 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 Wauseon been warmer than normal lately?
2024 averaged 52.4°F, 3.2°F above the 1991-2020 normal of 49.2°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 50.6°F | +1.4°F | 43.79 | 37.8 |
| 2022 | 49.1°F | −0.1°F | 31.15 | 23.8 |
| 2023 | 51.4°F | +2.2°F | 32.26 | 21.3 |
| 2024 | 52.4°F | +3.2°F | 34.25 | 11.7 |
Over 125 complete years from 1872 to 2024, the station's annual mean temperature rose at a fitted 2.3°F per century (+0.13°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00338822; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Wauseon's climate compare?
Wauseon is warmer than 9 of the other 98 places with their own NOAA record in Ohio, and wetter than 4. Across the 7,247 U.S. stations with normals, its annual mean of 49.2°F is warmer than 37%.
In the Köppen classification computed from these normals, Wauseon 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 Wauseon share this climate record?
Ridgeville Corners has no NOAA station with 1991-2020 normals of its 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.
- Ridgeville Corners, OH294 people · 8 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 Wauseon's climate
What is the coldest month in Wauseon?
January, with a normal high of 32°F and a normal low of 17°F. The warmest is July (84°F by day, 61°F at night).
Does it snow in Wauseon?
Yes: 27 inches in a normal year, falling on 20 days with 0.1 inch or more, the most in January (9.2 inches).
What is the rainiest month in Wauseon?
May, with 3.86 in of precipitation in a normal year; the driest is February with 1.93 in.
What plant hardiness zone is Wauseon in?
The USDA's 2023 map puts Wauseon in zone 6a in ZIP code 43567, the nearest ZIP area. By the same method at Wauseon's NOAA station, the coldest night of a typical year reaches −7°F (28 years, 1991-2020): zone 6a.
How late can frost come in Wauseon?
In half of years the last 32°F night comes after April 29; in one year in ten it comes after May 16. Waiting until May 16 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Ohio climateThe statewide normals and every place in the state
- Napoleon, OH9 miles from this station, 50.2°F a year
- Morenci, MI14 miles from this station, 48.4°F a year
- Toledo, OH19 miles from this station, 52.2°F a year
- Defiance, OH19 miles from this station, 50.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made