Quincy (IL) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Quincy, Illinois, United States of America. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's break down all the details for a clearer picture.

On average, Quincy receives a reasonable amount of rain/snowfall, with an annual precipitation of 983 mm (39 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, June receives substantial rainfall, averaging 140 mm (5.5 in) of precipitation, recorded across 12 rainy days.

In contrast, the driest month, January brings less snow/rainfall, with 34 mm (1.3 in) over 7 snowy/rainy days.

June, the wettest month, has a maximum daytime temperature of 29°C (84°F). During the driest month January you can expect a temperature of 2°C (36°F). For more detailed insights into the city's temperatures, visit our Quincy Temperature page.

Quincy's average annual precipitation is 983 mm (39 in). Let's compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.

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

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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.

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

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