Marshalltown (IA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Marshalltown.
Climate overview of Marshalltown
Marshalltown, Iowa, United States of America, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and January dropping to -3°C (27°F).
Marshalltown sees a moderate amount of rain/snowfall, totalling around 993 mm (39 in) per year. It experiences a distinct dry season from January to February, creating some seasonal variation.
Marshalltown Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Marshalltown — and find the best time to visit.
Monthly Temperature in Marshalltown
Visitors to Marshalltown can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in July, the warmest time of the year, to a very cold -3°C (27°F) during cooler months like January.
At night, you can expect temperatures ranging from 17°C (63°F) in July to around -13°C (9°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Marshalltown
Generally, Marshalltown experiences moderate precipitation patterns, averaging 993 mm (39 in) yearly. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives high rainfall, averaging 138 mm (5.4 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month January brings less snowfall, with 20 mm (0.8 in) over 7 snowy days. For more details, please visit our Marshalltown Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Marshalltown
The weather does bring rainfall during this period, between 94 mm (3.7 in) and 138 mm (5.4 in). Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Marshalltown
What is the best time to visit Marshalltown?
September typically offers the most optimal weather in Marshalltown. In contrast, January, February, March, November and December tend to have less optimal conditions. Marshalltown has a distinct dry season from January to February.
What temperatures can I expect in Marshalltown?
Daytime highs range from -3°C (27°F) in January to 29°C (84°F) in July. Nighttime lows range from -13°C (9°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Marshalltown get?
Annual rainfall is around 993 mm (39 in). June is the wettest month with 138 mm (5.4 in), while January is the driest with 20 mm (0.8 in).
Marshalltown 3-Day Forecast
Marshalltown (IA) 3-Day Forecast
Marshalltown on the map
Marshalltown is highlighted — select any city to see its climate.
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