Winona, MN Climate: Temperature by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Winona's primary NOAA station, WINONA.
The climate verdict for Winona
Winter sets the terms in Winona, Minnesota. A pronounced 55.9°F seasonal swing and heating demand above twice the cooling total frame an annual average of 49°F. July is the warmest month at 75°F and January the coldest at 19°F.
- 49°F
- annual average temperature (NOAA normal)
- 181 days
- frost-free days per growing season
Winona: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00219067 · Winona, MN 49°F mean
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COOL 49°F
- RANK-COOL #2,401
- PHOTO-FINISH ≈ W Point
- PRCP-UNK Rain n/a
- SWING-WIDE 56°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 6,780 HDD
- STN-1 USC00219067
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: W Point, NE (+ 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 MN station list.
- Winona (this station) 49°F
- Cold Clarkson, NE 49°F
- Hot Cedar Butte, SD 49°F
- Near W Point, NE 49°F
- Near Ouray, UT 49°F
Winona sits in Minnesota, the #3 coldest U.S. state at 42.2°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Winona
Winona: 44/100 · grade D
Winona publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Winona, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 181 days/year | 51/100 · D |
| Normal heat + freeze calendar | 143 calendar days | 51/100 · D |
| Annual temperature balance | 48.8°F · 18.7° from 67.5°F | 35/100 · F |
Winona · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Winona sits across the climate record
Available NOAA 1991–2020 fields for Winona are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- 35th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Seasonal temperature swing
- Wider than 93%
- Warmest-to-coldest month gap for Winona is large versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 27°F (-3°C) | 11°F (-12°C) | 19°F (-7°C) | N/A | 29.8 | 0.0 |
| February | 32°F (0°C) | 15°F (-9°C) | 24°F (-5°C) | N/A | 25.5 | 0.0 |
| March | 45°F (7°C) | 26°F (-3°C) | 35°F (2°C) | N/A | 23.1 | 0.0 |
| April | 59°F (15°C) | 39°F (4°C) | 49°F (10°C) | N/A | 7.6 | 0.3 |
| May | 72°F (22°C) | 51°F (10°C) | 61°F (16°C) | N/A | 0.3 | 0.7 |
| June | 80°F (27°C) | 61°F (16°C) | 70°F (21°C) | N/A | 0.0 | 3.1 |
| July | 85°F (29°C) | 65°F (18°C) | 75°F (24°C) | N/A | 0.0 | 5.2 |
| August | 82°F (28°C) | 63°F (17°C) | 73°F (23°C) | N/A | 0.0 | 3.1 |
| September | 75°F (24°C) | 55°F (13°C) | 65°F (18°C) | N/A | 0.2 | 1.1 |
| October | 61°F (16°C) | 42°F (6°C) | 52°F (11°C) | N/A | 4.6 | 0.1 |
| November | 45°F (7°C) | 30°F (-1°C) | 37°F (3°C) | N/A | 19.6 | 0.0 |
| December | 32°F (0°C) | 18°F (-8°C) | 25°F (-4°C) | N/A | 28.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 85°F around July 9, short of 90°F on every date, while 143 dates carry a normal low at or below freezing, the coldest 10°F near January 20.
The freezing stretch
The normal low stays at or below 32°F into March 31, then returns to freezing around November 10, covering 143 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.
The widest day
May 12 carries the biggest normal gap between afternoon and dawn, 21°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Winona.
Where Winona Stands Nationally
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 21°F.
Winona earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
Frost Dates & Growing Season
First Fall Freeze
October 19
50% probability date
Last Spring Freeze
April 21
50% probability date
Growing Season
181 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,780
Higher = more heating needed
Cooling Degree Days
910
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MN closest to Winona 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 (49°F here).
- Arthur, NE 49°F · 0.0°F off
- Buffalo, NY 49°F · 0.0°F off
- Canandaigua, NY 49°F · 0.0°F off
- Cedaredge, CO 49°F · 0.0°F off
Data-derived climate profile
How Winona's climate pattern fits together
heating led · high swing
Winter and seasonal range jointly define this record. Winona logs 6,780 heating degree days, more than twice its 910 cooling total, while the typical coldest-to-warmest-month gap reaches 55.9°F. The annual mean therefore compresses two materially different seasons.
Winona's frost-free season lasts about 181 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Winona's calendar has a pronounced split: July and January mark the typical warm and cold ends of the calendar, with 55.9°F between them. The annual average is 49°F. That average is context, while the monthly highs, lows, and precipitation totals describe the lived parts of the year.
A moisture-range label is withheld because Winona's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
These labels group NOAA 1991-2020 normals from Winona's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Winona, not an official NOAA class or a year-ahead forecast.
Questions about Winona's climate
How cold does Winona get in winter? ▼
How much energy does heating and cooling require in Winona? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Winona's primary station: WINONA (USC00219067). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 2771032). Match rule for Winona: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Winona 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.