The best times to visit Winner for ideal weather are

May 14th to September 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Winner Travel Info

Weather in Winner


Average temperatures in Winner vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a low chance of precipitation most of the year. The area is less temperate than some — in the 39th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Winner, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 93°F (33.9°C) with temperatures rarely dropping below 65.6°F (18.7°C) at night.

Winner Temperatures (Fahrenheit)


Winner Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Winner Perceived Temperature (F)


Winner Perceived Temperature (C)



Average Winner Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 35.9 23.9 14.4
Feb 36.7 23.9 14.3
Mar 53.2 38.4 27.6
Apr 61.7 47.3 35.9
May 72 58.4 46.9
Jun 82 68.9 57.2
Jul 90.9 76.6 63.9
Aug 87.9 74.1 62.3
Sep 81 65.7 53.4
Oct 64.8 51.1 40.3
Nov 51.6 37.8 27.4
Dec 35.5 24.6 15.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 2.2 -4.5 -9.8
Feb 2.6 -4.5 -9.8
Mar 11.8 3.6 -2.4
Apr 16.5 8.5 2.2
May 22.2 14.7 8.3
Jun 27.8 20.5 14
Jul 32.7 24.8 17.7
Aug 31.1 23.4 16.8
Sep 27.2 18.7 11.9
Oct 18.2 10.6 4.6
Nov 10.9 3.2 -2.6
Dec 1.9 -4.1 -9.1



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Winner are January, December, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid May with an average of 2 days of significant precipitation the week of May 7th.

When can you find snow in Winner? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Winner.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Winner (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 1% 0 0.1
Feb 2% 0 0.3
Mar 5% 0 0.6
Apr 13% 0 1.8
May 23% 0 3.4
Jun 24% 0 4.2
Jul 16% 0 1.9
Aug 17% 0 3
Sep 10% 0 1.2
Oct 11% 0 2
Nov 2% 0 0.3
Dec 2% 0 0.3

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 1 0 0.3
Feb 2 0 0.8
Mar 5 0 1.5
Apr 13 0 4.6
May 23 0 8.6
Jun 24 0 10.7
Jul 16 0 4.8
Aug 17 0 7.6
Sep 10 0 3
Oct 11 0 5.1
Nov 2 0 0.8
Dec 2 0 0.8


Humidity and Wind

Winner has some comfortably humid months, with slightly drier months on the other side of the year. The least humid month is September (45.9% relative humidity), and the most humid month is December (58.6%).

Wind in Winner is usually moderate. The windiest month is April, followed by January and March. April’s average wind speed of around 11.5 knots (13.3 MPH or 21.3 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late March where average top sustained speeds reach 21.8 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Winner.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 11.2 Significant breeze 19.4 Strong breeze
Feb 10.3 Gentle breeze 18 Strong breeze
Mar 11.2 Significant breeze 19.5 Strong breeze
Apr 11.5 Significant breeze 19.8 Strong breeze
May 10.7 Gentle breeze 19.2 Strong breeze
Jun 9.2 Gentle breeze 17.6 Strong breeze
Jul 8.9 Gentle breeze 17 Strong breeze
Aug 9.1 Gentle breeze 17.2 Strong breeze
Sep 10 Gentle breeze 17.5 Strong breeze
Oct 10.6 Gentle breeze 18.6 Strong breeze
Nov 10.3 Gentle breeze 18 Strong breeze
Dec 10.1 Gentle breeze 17.4 Strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 54.9%
Feb 57.1%
Mar 50.8%
Apr 48.2%
May 51.9%
Jun 55.8%
Jul 49.4%
Aug 52.2%
Sep 45.9%
Oct 48.3%
Nov 48.4%
Dec 58.6%


Is it Safe to Travel to Winner?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Winner, SD, US is July, followed by August and February. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Winner in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 42.4 in November means 42.4% of the tourists vs. July.



Overall Winner Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 76.8°F (24.9°C) and 34.9°F (1.6°C) with warmer temperatures in the later months. Rain is somewhat common with 2 to 7 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 5 to 7 days of precipitation per month. June – August is the busiest season for tourism in Winner, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 83.7°F (28.7°C) and 44.2°F (6.8°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 1 to 4 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Winner to be enjoyable for warm weather travelers. The average high during this season is between 40.9°F (4.9°C) and 31.7°F (-0.2°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the second busiest with tourists.


Best Times to Travelthe United States › Winner, SD, US