Weathermondo.com
United StatesThe climate of Marshalltown
The current climate in Marshalltown features temperatures ranging from a high of 28°C to a low of -2°C throughout the year. The average yearly temperature is around 15°C. At night, temperatures in the colder months average around -12°C and in the warmer months around 17°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 Marshalltown, Iowa.
Temperature records
The highest temperature recorded in Marshalltown in recent years was 38°C in August 2023. The lowest daytime temperature recorded was -25°C in January 2019.
Precipitation and snowfall
On average, Marshalltown gets 1144 mm of precipitation each year. Of this, about 83 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
Best time to visit Marshalltown?
The best time to visit Marshalltown for mild to warm weather is April, May and July up to October. You might get some rain, but the temperatures are just right to explore Marshalltown.
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Climate Table of Marshalltown
The climate table of Marshalltown 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) | -2 | -1 | 8 | 16 | 22 | 28 | 28 | 27 | 26 | 17 | 8 | 3 |
| Temp. min (°C) | -11 | -11 | -2 | 4 | 11 | 17 | 18 | 17 | 14 | 5 | -2 | -5 |
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| Precipitation (mm) | 19 | 18 | 52 | 101 | 99 | 258 | 112 | 158 | 110 | 118 | 54 | 45 |
| Snow (cm) | 27 | 21 | 9,9 | 2,2 | 0 | 0 | 0 | 0 | 0 | 0,5 | 6,3 | 16 |
| UV Index | 2 | 5 | 4 | 5 | 5 | 5 | 5 | 7 | 4 | 4 | 3 | 2 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Marshalltown, Iowa. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Marshalltown
Yearly Temperature in Marshalltown
Precipitation charts
These charts show the average amount of precipitation in Marshalltown, Iowa. 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 Marshalltown
Total Yearly Precipitation in Marshalltown
Average Snowfall per Month in Marshalltown
Total Yearly Snowfall in Marshalltown
UV index chart
This chart shows the average UV index per month in Marshalltown, Iowa. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Marshalltown
Weather experiences in Marshalltown
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Average weather in Marshalltown by month
Click on a month below to see detailed weather info for Marshalltown. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.