In an unexpected turn of events, September 2024 has etched its name in the annals of Czech meteorological history. With an average rainfall of 179 millimeters, it has secured the second spot among the rainiest months since record-keeping began in 1961. This remarkable feat is surpassed only by the notorious July of 1997, which saw an average precipitation of 204 millimeters across the Czech Republic.
The Czech Hydrometeorological Institute (ČHMÚ) reports that the impact of this year’s September downpour was particularly pronounced in Moravia and Silesia. These regions experienced an average rainfall of 212 millimeters, a staggering 317% of the long-term normal. While Bohemia fared slightly better, it still recorded 162 millimeters of rain, equivalent to 290% of the usual precipitation.
For perspective, during the record-breaking month of July 1997, Lysá hora in the Beskid Mountains received a deluge of over 811 millimeters. This September, preliminary data indicates that the Krkonoše and Jeseníky mountains bore the brunt of the rainfall, with measurements exceeding 550 millimeters. Astonishingly, meteorologists recorded daily rainfall surpassing 200 millimeters at 17 stations this September.
The recent deluge brings to mind other historic flooding events. August 2002, now ranking third in the rainfall records, is remembered for its devastating floods that claimed lives and caused billions in property damage. These extreme weather events serve as stark reminders of nature’s power and the increasing volatility of our climate.
Interestingly, despite the torrential rains, September 2024 also stands out for its warmth. It has secured a place among the top ten warmest Septembers on record. The month began with temperatures soaring more than 5°C above normal. Even with a 10°C drop during the rainy spell, the overall monthly average remained about two degrees higher than usual. This juxtaposition of extreme rainfall and above-average temperatures underscores the complex and changing nature of our climate.