The best times to visit Western Iowa for ideal weather are

May 7th 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 Western Iowa Travel Info

Weather in Western Iowa


Average temperatures in Western Iowa vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 54th 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 Western Iowa, 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 85.2°F (29.6°C) with temperatures rarely dropping below 64.8°F (18.2°C) at night.

Western Iowa Temperatures (Fahrenheit)


Western Iowa 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.

Western Iowa Perceived Temperature (F)


Western Iowa Perceived Temperature (C)



Average Western Iowa 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 27.9 18.9 11.2
Feb 29.1 19.8 12.3
Mar 46.9 36.1 28.3
Apr 61.1 48.3 38.6
May 72.9 60.5 50.6
Jun 81.1 70.3 61
Jul 84.1 73.4 63.4
Aug 81.2 70.4 61.3
Sep 76.5 63.8 53.5
Oct 62.5 50.9 41.8
Nov 48 36.8 28.1
Dec 31.1 23.2 16.2

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -2.3 -7.3 -11.6
Feb -1.6 -6.8 -10.9
Mar 8.3 2.3 -2.1
Apr 16.2 9.1 3.7
May 22.7 15.8 10.3
Jun 27.3 21.3 16.1
Jul 28.9 23 17.4
Aug 27.3 21.3 16.3
Sep 24.7 17.7 11.9
Oct 16.9 10.5 5.4
Nov 8.9 2.7 -2.2
Dec -0.5 -4.9 -8.8



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Western Iowa are January, March, 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 late May with an average of 1 days of significant precipitation the week of May 21st.

When can you find snow in Western Iowa? 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 Western Iowa.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 0% 0 0
Feb 1% 0 0.2
Mar 1% 0 0.1
Apr 5% 0 0.6
May 7% 0 0.9
Jun 4% 0 0.4
Jul 2% 0 0.2
Aug 2% 0 0.2
Sep 1% 0 0.1
Oct 1% 0 0
Nov 1% 0 0
Dec 4% 0 0.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 0 0 0
Feb 1 0 0.5
Mar 1 0 0.3
Apr 5 0 1.5
May 7 0 2.3
Jun 4 0 1
Jul 2 0 0.5
Aug 2 0 0.5
Sep 1 0 0.3
Oct 1 0 0
Nov 1 0 0
Dec 4 0 0.5


Humidity and Wind

Western Iowa has some very humid months, with other comfortably humid months. The least humid month is April (52.5% relative humidity), and the most humid month is December (74.9%).

Wind in Western Iowa is usually moderate. The windiest month is April, followed by May and January. April’s average wind speed of around 12.5 knots (14.4 MPH or 23.1 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 early May where average top sustained speeds reach 22.5 knots, which is considered a strong breeze.

Relative Humidity (%)

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

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 11.4 Significant breeze 19.7 Strong breeze
Feb 11 Significant breeze 18.4 Strong breeze
Mar 11 Significant breeze 19 Strong breeze
Apr 12.5 Significant breeze 21.3 Strong breeze
May 11.8 Significant breeze 21 Strong breeze
Jun 9.5 Gentle breeze 18.1 Strong breeze
Jul 7.1 Gentle breeze 13.8 Strong breeze
Aug 6.5 Light breeze 12.8 Significant breeze
Sep 7.6 Gentle breeze 14.2 Strong breeze
Oct 9.8 Gentle breeze 17.2 Strong breeze
Nov 11.1 Significant breeze 19.1 Strong breeze
Dec 10.6 Gentle breeze 17.9 Strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 68.6%
Feb 69.8%
Mar 66.5%
Apr 52.5%
May 52.6%
Jun 59.1%
Jul 65.4%
Aug 71.6%
Sep 60.8%
Oct 55.4%
Nov 60.6%
Dec 74.9%


Is it Safe to Travel to Western Iowa?

Our best data indicates this area is generally safe. As of Oct 07, 2019 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 Sep 23, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Western Iowa, the United States is June, followed by May 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 Western Iowa 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 48.4 in November means 48.4% of the tourists vs. June.



Overall Western Iowa Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 78.5°F (25.8°C) and 29.3°F (-1.5°C) with far warmer temperatures in the later months. Rain is rare with 0 to 2 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with about 1 days of precipitation per month. June – August is the busiest season for tourism in Western Iowa, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 79.1°F (26.2°C) and 39.3°F (4.1°C), which will feel chilly given the humidity and wind. It rains or snows a trivial amount: approximately 0 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 Western Iowa to be enjoyable for warm weather travelers. The average high during this season is between 32.1°F (0.1°C) and 25.7°F (-3.5°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are fairly slow with tourists.


Best Times to Travelthe United States › Western Iowa, the United States