Tulsa (OK) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Tulsa, Oklahoma, United States of America. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's explore the details to provide you with a complete overview.

On average, Tulsa receives a reasonable amount of rain/snowfall, with an annual precipitation of 967 mm (38 in).

Monthly Precipitation Levels

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

Tulsa can be quite wet during May, receiving approximately 139 mm (5.5 in) of precipitation over 11 rainy days.

In contrast January, experiences much drier conditions, with 23 mm (0.9 in) of rainfall, spread across 5 rainy days.

May, the wettest month, has a maximum daytime temperature of 26°C (79°F). The city receives 268 hours of sunshine in this period. During the driest month January you can expect a temperature of 10°C (50°F). For more detailed insights into the city's temperatures, visit our Tulsa Temperature page.

Tulsa's average annual precipitation is 967 mm (38 in). Let's compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.

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

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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.

Precipitation has a very strong role in determining the local climate and ecosystem:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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