Kansas City (MO) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Kansas City, Missouri, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's explore all the details to give you a full picture.

Kansas City is known for its substantial rain/snowfall, with annual precipitation reaching 1112 mm (44 in).

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Significant seasonal changes in precipitation occur throughout the year. During the wettest month, May receives substantial rainfall, averaging 150 mm (5.9 in) of precipitation, recorded across 13 rainy days.

In contrast, the driest month, January brings less snow/rainfall, with 21 mm (0.8 in) over 5 snowy/rainy days.

May, the wettest month, has a maximum daytime temperature of 24°C (75°F). The city receives 286 hours of sunshine in this period. During the driest month January you can expect a temperature of 5°C (41°F). For more detailed insights into the city's temperatures, visit our Kansas City Temperature page.

Kansas City's average annual precipitation is 1112 mm (44 in). Let's compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

• "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
• The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
• The greatest snowfall recorded was on Mt. Rainier, Washington State, USA, over 31.5 meters (103 feet) fell during the winter of 1972.

For more detailed information about Kansas City (MO)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Kansas City (MO) Climate page.