Oak Lawn (IL) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Oak Lawn, Illinois, United States of America. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Let's now guide you through the details for a complete overview.

Oak Lawn experiences significant rain/snowfall throughout the year, averaging 1070 mm (42 in) of precipitation annually.

Monthly Precipitation Levels

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

Oak Lawn can be quite wet during June, receiving approximately 127 mm (5 in) of precipitation over 15 rainy days.

In contrast January, experiences much drier conditions, with 55 mm (2.2 in) of snowfall, spread across 11 snowy days.

June, the wettest month, has a maximum daytime temperature of 27°C (81°F). The city receives 311 hours of sunshine in this period. During the driest month January you can expect a temperature of 0°C (32°F). For more detailed insights into the city's temperatures, visit our Oak Lawn Temperature page.

Oak Lawn's average annual precipitation is 1070 mm (42 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 Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

• 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 Oak Lawn (IL)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Oak Lawn (IL) Climate page.