Wfo Wilmington, OH Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Wfo Wilmington's primary NOAA station, WFO WILMINGTON.
The climate verdict for Wfo Wilmington
Wfo Wilmington, Ohio has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 54°F. Its climate comfort score of 63/100 (good) lands mid-pack nationally, exceeding 46% of station-mapped location scores.
- 54°F
- yearly average temperature, NOAA normal
- 63/100
- comfort score, above 46% of station-mapped location scores
- 44.7"
- annual precipitation · 27" snow
- 188 days
- frost-free days per growing season
Wfo Wilmington: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00339220 · Wfo Wilmington, OH 54°F mean · 44.7" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 54°F
- RANK-MID #3,842
- PHOTO-FINISH ≈ New Brunswick
- PRCP-MID 44.7"
- SWING-MID 45°F
- COMF-MID 63/100
- LOAD-HEAT 5,110 HDD
- STN-1 USC00339220
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: New Brunswick, NJ (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every OH station list.
- Wfo Wilmington (this station) 54°F
- Hot Ashland, KY 54°F
- Near New Brunswick, NJ 54°F
- Near Lancaster 2ne F…, PA 54°F
- Near Cumberland, MD 54°F
Climate Living Index · Wfo Wilmington
Wfo Wilmington: 60/100 · grade C
Wfo Wilmington publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Wfo Wilmington, not an official NOAA rating. Rankings still use Comfort Score 63/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 111 calendar days | 70/100 · B |
| Precipitation balance | 44.7 in · 9.7 from 35 in | 66/100 · C |
| Frost-free season | 188 days/year | 56/100 · C |
| Annual temperature balance | 53.7°F · 13.8° from 67.5°F | 55/100 · C |
| Snowfall burden | 26.6 inches/year | 42/100 · D |
Wfo Wilmington · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Wfo Wilmington is a continental Köppen climate: Dfa
Coldest-month mean 30.1°F and warmest-month mean 74.6°F place this station in continental, no dry season, hot summer climates (Dfa). Class Dfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, hot summer.
- Köppen code
- Dfa
- Group
- Continental
- Warmest month
- 74.6°F
- Coldest month
- 30.1°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Wfo Wilmington sits across the climate record
Three NOAA fields for Wfo Wilmington's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 56th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 68th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 56th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Wfo Wilmington compares across U.S. station-mapped locations
Wfo Wilmington's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
63 46th percentile score exceeds 46% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 38°F (4°C) | 22°F (-6°C) | 30°F (-1°C) | 3.3" | 8.9" | 24.9 | 0.0 |
| February | 42°F (6°C) | 24°F (-4°C) | 33°F (1°C) | 2.9" | 7.4" | 21.5 | 0.0 |
| March | 52°F (11°C) | 33°F (0°C) | 42°F (6°C) | 4.0" | 4.1" | 16.0 | 0.0 |
| April | 65°F (18°C) | 43°F (6°C) | 54°F (12°C) | 4.5" | 0.4" | 4.5 | 0.0 |
| May | 75°F (24°C) | 53°F (12°C) | 64°F (18°C) | 4.8" | 0.0" | 0.2 | 0.5 |
| June | 83°F (28°C) | 61°F (16°C) | 72°F (22°C) | 4.5" | 0.0" | 0.0 | 3.5 |
| July | 85°F (30°C) | 64°F (18°C) | 75°F (24°C) | 4.1" | 0.0" | 0.0 | 6.2 |
| August | 84°F (29°C) | 62°F (17°C) | 73°F (23°C) | 3.4" | 0.0" | 0.0 | 4.4 |
| September | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 3.0" | 0.0" | 0.0 | 2.2 |
| October | 67°F (19°C) | 44°F (7°C) | 56°F (13°C) | 3.4" | 0.1" | 2.6 | 0.2 |
| November | 54°F (12°C) | 34°F (1°C) | 44°F (7°C) | 3.3" | 1.1" | 13.6 | 0.0 |
| December | 43°F (6°C) | 27°F (-3°C) | 35°F (2°C) | 3.4" | 4.6" | 21.6 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 85°F around July 7, short of 90°F on every date, while 111 dates carry a normal low at or below freezing, the coldest 21°F near January 22.
The freezing stretch
The normal low stays at or below 32°F into March 14, then returns to freezing around November 25, covering 111 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is April 30, when 46% of years recorded at least a hundredth of an inch. The driest is September 13 at 29%. Summed across the calendar, that is about 142 wet dates a year.
The widest day
September 15 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Wfo Wilmington.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 8.9"
14.3 days with precipitation
Snow: 7.4"
12.0 days with precipitation
Snow: 4.1"
12.4 days with precipitation
Snow: 0.4"
13.3 days with precipitation
13.9 days with precipitation
12.9 days with precipitation
11.2 days with precipitation
9.5 days with precipitation
8.7 days with precipitation
Snow: 0.1"
9.9 days with precipitation
Snow: 1.1"
10.7 days with precipitation
Snow: 4.6"
13.0 days with precipitation
Wfo Wilmington spreads its precipitation across the year
Neither half of the year dominates here: June through August take 27% of the annual total and December through February 22%, with neither reaching the 35% that would mark a distinct wet season. Wfo Wilmington has no dry season to plan around, though it does carry a 44.5°F seasonal spread.
The gap between the wettest and driest month still matters: May averages 4.8" and February 2.9". The three wettest months together take 31% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
How Wfo Wilmington's precipitation splits across the calendar
About 142 days a year record measurable precipitation here, carrying 44.7" between them, or roughly 0.32 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to Wfo Wilmington
Wfo Wilmington averages 26.6 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 26 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 26.6 inches of depth.
- Days recording measurable snow: about 26 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 6% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 22
50% probability date
Last Spring Freeze
April 17
50% probability date
Growing Season
188 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,110
Higher = more heating needed
Cooling Degree Days
1,019
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside OH closest to Wfo Wilmington on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (54°F here).
- Beaverton, OR 54°F · 0.0°F off
- Caliente, NV 54°F · 0.0°F off
- Carrollton, MO 54°F · 0.0°F off
- Centralia, KS 54°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (44.7" here), excluding temperature-peer places.
- Corinna, ME 44.7" · 0.0" off
- Springfield, MO 44.7" · 0.0" off
- Altoona, PA 44.7" · 0.0" off
- Iuka, IL 44.7" · 0.0" off
Snow and freeze rhythm
When cold and snow define Wfo Wilmington
heating led · moderate · mid swing
Wfo Wilmington's energy balance leans toward cold weather: 5,110 annual heating degree days against 1,019 for cooling. Its 44.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
Wfo Wilmington's frost-free season lasts about 188 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Wfo Wilmington coldest normal
January
The monthly mean of 30°F (-1°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Wfo Wilmington typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Wfo Wilmington snow peak
January
Wfo Wilmington averages 26.6 inches of snow a year, with January the snowiest month on the normals.
Questions about Wfo Wilmington's climate
How much snow does Wfo Wilmington get? ▼
How cold does Wfo Wilmington get in winter? ▼
How much energy does heating and cooling require in Wfo Wilmington? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Wfo Wilmington's primary station: WFO WILMINGTON (USC00339220). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Wfo Wilmington; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Wfo Wilmington comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.