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United StatesThe climate of Iowa
The current climate in Iowa features temperatures ranging from a high of 29°C to a low of -1°C throughout the year. The average yearly temperature is around 16°C. At night, temperatures in the colder months average around -11°C and in the warmer months around 18°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Iowa, United States.
Temperature records
The highest temperature recorded in Iowa in recent years was 38°C in June 2021. The lowest daytime temperature recorded was -24°C in January 2019.
Precipitation and snowfall
On average, Iowa gets 990 mm of precipitation each year. Of this, about 100 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
The climate in Iowa is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Iowa to get the full picture of the climate.
Best time to visit Iowa?
The best time to visit Iowa for mild to warm weather is April up to October. You might get some rain, but the temperatures are just right to explore Iowa.
Find affordable vacations to Iowa
Climate Table of Iowa
The climate table of Iowa shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | -1 | -1 | 8 | 17 | 22 | 29 | 29 | 28 | 26 | 16 | 8 | 4 |
| Temp. min (°C) | -10 | -10 | -2 | 5 | 12 | 17 | 18 | 18 | 14 | 6 | -2 | -5 |
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| Precipitation (mm) | 23 | 30 | 58 | 66 | 163 | 147 | 66 | 147 | 74 | 137 | 44 | 35 |
| Snow (cm) | 25 | 39 | 8,0 | 1,7 | 0 | 0 | 0 | 0 | 0 | 3,1 | 9,7 | 12 |
| UV Index | 2 | 3 | 5 | 4 | 6 | 6 | 5 | 6 | 6 | 3 | 3 | 3 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
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Temperature charts
These charts display the average temperatures in Iowa, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Iowa
Yearly Temperature in Iowa
Precipitation charts
These charts show the average amount of precipitation in Iowa, United States. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Iowa
Total Yearly Precipitation in Iowa
Average Snowfall per Month in Iowa
Total Yearly Snowfall in Iowa
UV index chart
This chart shows the average UV index per month in Iowa, United States. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Iowa
Weather experiences in Iowa
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Average weather in Iowa by month
Click on a month below to see detailed weather info for Iowa. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.