Which day has the highest rainfall in Oklahoma? How much rain does the state receive annually?

Oklahoma is notorious for unpredictable, unseasonable weather. In late March, snowfall surprised the metro, and spring temperatures have ranged from the upper-80s to low-40s.

On average, annual precipitation in the state ranges from about 17 inches in the far western panhandle to about 56 inches in the far southeast, according to the Oklahoma Climatological Survey.

Here's everything you should know about rainfall in the Sooner State.

Which day has the highest rainfall in Oklahoma?

According to the climatological survey, the greatest annual precipitation recorded in the state was 84.47 inches at Kiamichi Tower in the southeast in 1957.

In a 24-hour period, the greatest official rainfall was 15.68 inches in Enid on October 11, 1973.

When does Oklahoma receive the most rain?

Oklahoma gets most of its precipitation during the nighttime hours, according to the climatological survey, but the greatest rainfall intensities occur during late afternoon.

In the winter, precipitation is widespread and stratiform, meaning they're continuous and uniform in intensity, and rainfall is the dominant precipitation type for all but the Oklahoma Panhandle, according to the survey.

In the summer, precipitation is mostly convective, occurring when warm, moist air rises in the atmosphere, and produced by individual thunderstorms.

Spring and autumn see convective and stratiform precipitation, according to the survey, and most of the precipitation during these transition seasons is associated with systems of severe thunderstorms.

Oklahoma Mesonet rainfall totals

The Mesonet is a joint project between the University of Oklahoma and Oklahoma State University under the Oklahoma Climatological Survey.

Find daily rainfall totals using this Oklahoma Mesonet rainfall map.

This article originally appeared on Oklahoman: Oklahoma Mesonet: Which day has the highest rainfall in Oklahoma?