Winona in Summer
In summer (June, July and August), Winona sees average daytime highs around 78°F and overnight lows near 61°F, with 12.9 in of rain over about 32 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 78°F. The sky is clear or mostly clear about 33% of the time across summer, and the air most often feels comfortable.
Summer is Winona's best season of the year to visit on our travel score. For the whole year in context, see Winona's year-round climate.
- Avg daytime high
- 78°F
- warmest season of the year
- Avg overnight low
- 61°F
- Rainfall
- 12.9 in
- 32 wet days
- Avg wind
- 7 mph
- Travel score
- 6.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Winona in Summer
Across summer, daytime highs hold fairly steady around 78°F.
A typical summer day in Winona reaches about 78°F and drops to 61°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Winona
Once humidity and wind are folded in, summer brings about 0 days that feel above 90°F and 0 that feel at or below 32°F.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Winona weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 25° / 10° | 1.2 | 6.7 | 6.3 | 9.1 | 0.0 |
| Feb | 29° / 13° | 1.2 | 6.1 | 5.2 | 10.2 | 0.0 |
| Mar | 42° / 25° | 2.3 | 9 | 4.3 | 11.6 | 0.6 |
| Apr | 56° / 37° | 3.7 | 11.6 | 2 | 13.2 | 3.5 |
| May | 67° / 49° | 4.5 | 13.1 | 0.1 | 14.5 | 5.7 |
| Jun | 76° / 59° | 5.1 | 12.4 | 0 | 15.2 | 6.3 |
| Jul | 80° / 63° | 4.1 | 10.6 | 0 | 15 | 6.6 |
| Aug | 78° / 60° | 3.7 | 9.3 | 0 | 13.8 | 6.9 |
| Sep | 71° / 52° | 3.3 | 9.3 | 0 | 12.3 | 6.8 |
| Oct | 57° / 40° | 2.9 | 8.9 | 0.5 | 10.8 | 4.2 |
| Nov | 42° / 28° | 2.0 | 6.9 | 3.3 | 9.4 | 0.6 |
| Dec | 29° / 16° | 1.5 | 7.3 | 6 | 8.8 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 33% of the time across summer.
Chance of precipitation in Summer
Winona gets around 12.9 in of rain over 32 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 7 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 hours in early June to 13 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.0 kWh/m².
Is summer a good time to visit Winona?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Winona for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Winona in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Winona sees daytime highs around 78°F and nights near 61°F. Pack sun protection. Worth having: light clothes and rain gear. About 32 days see rain.
UV index in Winona in Summer
Clear-sky midday UV across summer averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Winona peaks around June 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 8 | 9 | 7 | 7 | 6 | 3 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | High | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 3 | Moderate |
| Apr | 5 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 7 | High |
| Aug | 7 | Very high |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 2 | Low |
Where is Winona?
Winona sits at 44.0°N, 91.6°W, 666 ft above sea level, in United States. The nearest listed city is Onalaska, 23 mi away.
Topography around Winona
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Winona.
Within 2 miles, the terrain around Winona has only modest variations in elevation — a maximum elevation change of 610 ft around an average of 722 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 725 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 833 ft.
The land around Winona is covered by trees (42%) and artificial surfaces (26%) within 2 miles, trees (52%) and cropland (27%) within 10 miles, and trees (46%) and cropland (42%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Winona (44.05°, -91.6393°, elevation 666 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.