The best times to visit Des Moines for ideal weather are

May 14th to June 17th

or

July 23rd to October 7th

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

 


Des Moines Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Des Moines

    Temperature

    Average temperatures in Des Moines vary somewhat and are temperate for much of the year. The area is in the top 32 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Des Moines, 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 64.6°F (18.1°C) with temperatures rarely dropping below 48.2°F (9°C) at night.

    Des Moines Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Des Moines Temperatures (Celsius)

    Key
    High
    Average
    Low

    “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.

    Des Moines Perceived Temperature (F)

    Key
    High
    Average
    Low

    Des Moines Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Des Moines 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 30.3 20.4 12.1
    Feb 31.7 22 14.2
    Mar 48.7 37.6 29.5
    Apr 62.8 49.8 39.6
    May 74.2 61.8 51.3
    Jun 81.9 70.8 61.4
    Jul 84.7 73.7 63.8
    Aug 82.9 71.8 62.1
    Sep 77.5 64.1 53.5
    Oct 64.5 52 42.1
    Nov 49.9 39 30.5
    Dec 34.8 26 18.8

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan -0.9 -6.4 -11.1
    Feb -0.2 -5.6 -9.9
    Mar 9.3 3.1 -1.4
    Apr 17.1 9.9 4.2
    May 23.4 16.6 10.7
    Jun 27.7 21.6 16.3
    Jul 29.3 23.2 17.7
    Aug 28.3 22.1 16.7
    Sep 25.3 17.8 11.9
    Oct 18.1 11.1 5.6
    Nov 9.9 3.9 -0.8
    Dec 1.6 -3.3 -7.3

     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of precipitation in Des Moines are April, June, and then May. The lowest chance of rain or snow occurs around late January. For example, on the week of January 22nd there are only 0.2 days of precipitation on average. By contrast, it’s most likely to rain or snow in late June with an average of 1.9 days with significant precipitation the week of June 25th.

    When can you find snow in Des Moines? 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 Des Moines.

    Key
    Days with precipitation

    Snow on the Ground

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

    Key
    Snow depth

    Average Rain and Snow by Month

    Show Inches

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 4.3 0 0
    Feb 8.6 0 0.01
    Mar 10 0 0.01
    Apr 20 0 0.05
    May 18.6 0 0.04
    Jun 20 0 0.04
    Jul 11.4 0 0.02
    Aug 10 0 0.03
    Sep 11.4 0 0.02
    Oct 11.4 0 0.01
    Nov 7.1 0 0.01
    Dec 11.4 0 0.01

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 4.3 0 0
    Feb 8.6 0 0.03
    Mar 10 0 0.03
    Apr 20 0 0.13
    May 18.6 0 0.1
    Jun 20 0 0.1
    Jul 11.4 0 0.05
    Aug 10 0 0.08
    Sep 11.4 0 0.05
    Oct 11.4 0 0.03
    Nov 7.1 0 0.03
    Dec 11.4 0 0.03

     

    Humidity and Wind

    Des Moines has slightly high to average humidity compared to most tourist destinations. The least humid month is May (54.5% relative humidity), and the most humid month is December (74.9%).

    Wind in Des Moines is usually moderate. The windiest month is April, followed by May and March. April’s average wind speed of around 10.4 knots (12 MPH or 19.3 KPH) is considered “gentle 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 19.8 knots, which is considered a fresh breeze.

    Relative Humidity (%)

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

    Key
    Avg. Relative Humidity

    Wind

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

    Key
    Max Sustained Wind
    Average Daily Wind

    Average Wind Speeds

    Show Wind Speeds

    All wind speeds are in knots.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 9.2 a gentle breeze 17.1 a fresh breeze
    Feb 9.2 a gentle breeze 16.3 a moderate breeze
    Mar 9.5 a gentle breeze 17.2 a fresh breeze
    Apr 10.4 a gentle breeze 19.1 a fresh breeze
    May 9.8 a gentle breeze 18.7 a fresh breeze
    Jun 7.6 a gentle breeze 16 a moderate breeze
    Jul 5.5 a light breeze 12.5 a fresh breeze
    Aug 5.1 a light breeze 11.3 a moderate breeze
    Sep 6 a light breeze 12.8 a fresh breeze
    Oct 7.9 a gentle breeze 15.2 a moderate breeze
    Nov 9.3 a gentle breeze 16.7 a fresh breeze
    Dec 8.9 a gentle breeze 16.1 a moderate breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 68.6
    Feb 70.9
    Mar 66.4
    Apr 55.9
    May 54.5
    Jun 62.9
    Jul 66.6
    Aug 69.3
    Sep 62
    Oct 56.4
    Nov 61.9
    Dec 74.9

     

    Is it Safe to Travel to Des Moines?

    As of 6/22/2017 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.
     

    Overall Des Moines Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderately cold. Highs range from 59.2°F (15.1°C) and 24.9°F (-3.9°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 6 days of precipitation per month. Spring is slow/unreported 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 moderate precipitation with 3 to 6 days of precipitation per month. June – August is slow/unreported season for tourism in Des Moines, so lodging and other accommodations may cost as much as usual.

    Fall (September through November)

    Fall daily highs range from 60°F (15.6°C) and 31.9°F (-0.1°C), which will feel chilly given the humidity and wind. It rains or snows a small amount: 2 to 4 days per month. Tourism is slow/unreported during these months due to the weather, so hotels may be normally priced.

    Winter (December through February)

    Weather is far too cold this time of year in Des Moines to be enjoyable for warm weather travelers. The average high during this season is between 27.4°F (-2.6°C) and 21.9°F (-5.6°C). On average, it rains or snows a normal amount: 1 to 4 times per month. These times of year are slow/unreported with tourists.

     


     

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