Winona, Kansas climate: Normal weather by month, frost dates and records
Winona's normal year runs from 18°F January nights to 91°F July afternoons, with 19.5 inches of precipitation and 17 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.7°C, January lows of −8°C, July highs of 33°C, 495 mm of precipitation a year.
- NOAA stationWinona
- Station IDUSC00148988
- Location39.06°N 101.24°W
- Elevation3,323 ft (1,013 m)
- Population184
On October 24, the normal high in Winona is 65°F and the normal low 36°F, and the chance of measurable rain or snow is 13%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Winona.
- Jan 44° 18°
- Feb 48° 19°
- Mar 58° 28°
- Apr 65° 36°
- May 75° 47°
- Jun 86° 58°
- Jul 91° 64°
- Aug 88° 62°
- Sep 81° 53°
- Oct 69° 40°
- Nov 55° 27°
- Dec 45° 19°
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 Winona each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 18°F. The most precipitation falls in July (3.64 in), the least in January (0.30 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 44°F | 18°F | 31.2°F | 0.30 | 3.1 | 2 | <1 | 30 | 9 h 40 min |
| February | 48°F | 19°F | 33.3°F | 0.45 | 3.6 | 2 | <1 | 26 | 10 h 40 min |
| March | 58°F | 28°F | 42.9°F | 0.85 | 2.9 | 3 | <1 | 21 | 11 h 50 min |
| April | 65°F | 36°F | 50.5°F | 1.57 | 0.8 | 5 | 1 | 10 | 13 h 10 min |
| May | 75°F | 47°F | 61.0°F | 2.65 | 0.6 | 7 | 3 | 1 | 14 h 20 min |
| June | 86°F | 58°F | 72.4°F | 2.76 | 0.0 | 6 | 10 | <1 | 14 h 50 min |
| July | 91°F | 64°F | 77.5°F | 3.64 | 0.0 | 7 | 18 | <1 | 14 h 40 min |
| August | 88°F | 62°F | 75.0°F | 3.13 | 0.0 | 7 | 13 | <1 | 13 h 40 min |
| September | 81°F | 53°F | 67.1°F | 1.58 | 0.1 | 4 | 6 | <1 | 12 h 30 min |
| October | 69°F | 40°F | 54.1°F | 1.41 | 1.3 | 4 | 1 | 6 | 11 h 10 min |
| November | 55°F | 27°F | 41.0°F | 0.64 | 1.7 | 3 | <1 | 21 | 10 h |
| December | 45°F | 19°F | 31.7°F | 0.49 | 3.3 | 2 | <1 | 30 | 9 h 30 min |
| Year (annual) | 67°F | 39°F | 53.1°F | 19.47 | 17.4 | 52 | 51 | 145 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 7°C | −8°C | −0.4°C | 8 mm | 8 cm |
| February | 9°C | −7°C | 0.7°C | 11 mm | 9 cm |
| March | 15°C | −2°C | 6.1°C | 22 mm | 7 cm |
| April | 19°C | 2°C | 10.3°C | 40 mm | 2 cm |
| May | 24°C | 8°C | 16.1°C | 67 mm | 2 cm |
| June | 30°C | 15°C | 22.4°C | 70 mm | 0 cm |
| July | 33°C | 18°C | 25.3°C | 92 mm | 0 cm |
| August | 31°C | 17°C | 23.9°C | 80 mm | 0 cm |
| September | 27°C | 12°C | 19.5°C | 40 mm | 0 cm |
| October | 20°C | 4°C | 12.3°C | 36 mm | 3 cm |
| November | 13°C | −3°C | 5.0°C | 16 mm | 4 cm |
| December | 7°C | −7°C | −0.2°C | 12 mm | 8 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00148988; 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 Winona?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (4).
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 USC00148988.
When is the last frost in Winona?
In Winona, the last spring frost (32°F) comes after April 29 in half of years and after May 11 in one year in ten; the first autumn frost comes before October 17 in half of years and before October 3 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 11; 9 in 10 after April 14
- First autumn frost, half of years before
- October 171 year in 10 before October 3; 9 in 10 before October 28
NOAA puts the median frost-free season at 172 days, and the season without a hard freeze (28°F) at 190 days.
A hard freeze (28°F) comes after April 17 in half of springs and before October 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Winona in zone 6a in ZIP code 67747, the nearest ZIP area.
Frost dates for every NOAA station in Kansas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00148988; 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 Winona?
In a normal year in Winona, 51 days a year reach 90°F (7 of them 100°F or more), 145 nights fall to 32°F or colder and 52 days bring measurable precipitation.
- Days at 90°F or more
- 51a normal year
- Days at 100°F or more
- 7a normal year
- Nights at 32°F or colder
- 145a normal year
- Days that stay below freezing
- 23high of 32°F or less
- Days with 0.01 inch of precipitation
- 52a normal year
- Days with 1 inch of snow or more
- 6a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00148988.
How sunny is Winona?
Over a year 82% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Winona, 4.8 kWh per square metre a day. July is the sunniest month (89%) and February the cloudiest (76%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.5 |
| February | 76% | 3.4 |
| March | 78% | 4.6 |
| April | 77% | 5.7 |
| May | 79% | 6.5 |
| June | 86% | 7.3 |
| July | 89% | 7.2 |
| August | 87% | 6.3 |
| September | 85% | 5.2 |
| October | 81% | 3.8 |
| November | 81% | 2.8 |
| December | 77% | 2.2 |
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 Winona need?
A normal year in Winona brings 5,456 heating degree days, 2% more than the median U.S. place (5,373), and 1,167 cooling degree days, 29% 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 3,595 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,048 | 0 |
| February | 886 | 0 |
| March | 687 | 0 |
| April | 439 | 5 |
| May | 181 | 56 |
| June | 23 | 243 |
| July | 2 | 391 |
| August | 6 | 316 |
| September | 76 | 139 |
| October | 355 | 17 |
| November | 719 | 1 |
| December | 1,033 | 0 |
| Year (annual) | 5,456 | 1,167 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00148988. 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.
How does Winona's climate compare?
Winona is warmer than 24 of the other 136 places with their own NOAA record in Kansas, and wetter than 12. Across the 7,247 U.S. stations with normals, its annual mean of 53.1°F is warmer than 54%.
In the Köppen classification computed from these normals, Winona is BSk: cold semi-arid steppe. 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.
Questions about Winona's climate
What is the coldest month in Winona?
January, with a normal high of 44°F and a normal low of 18°F. The warmest is July (91°F by day, 64°F at night).
Does it snow in Winona?
Yes: 17 inches in a normal year, falling on 8 days with 0.1 inch or more, the most in February (3.6 inches).
What is the rainiest month in Winona?
July, with 3.64 in of precipitation in a normal year; the driest is January with 0.30 in.
What plant hardiness zone is Winona in?
The USDA's 2023 map puts Winona in zone 6a in ZIP code 67747, the nearest ZIP area.
How late can frost come in Winona?
In half of years the last 32°F night comes after April 29; in one year in ten it comes after May 11. Waiting until May 11 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kansas climateThe statewide normals and every place in the state
- Russell Springs, KS8 miles from this station, 52.6°F a year
- Oakley, KS17 miles from this station, 51.7°F a year
- Wallace, KS21 miles from this station, 52.4°F a year
- Brewster, KS24 miles from this station, 50.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made