Heavy Rains, Snowfall and Showers
Heavy Rains, Snowfall and Showers
The greatest annual rainfall was 1510 mm (1937, Kőszeg) .
Greatest monthly rainfall: 444 mm (June 1958, Dobogókő)
Greatest daily rainfall: 260 mm (9 June 1953, Dad)
Greatest precipitation over the space of 10 minutes: 64.2 mm (24 May 1916, Zirc)
Greatest precipitation output over the space of 60 minutes: 120 mm (23 August 1988, Heves). Precipitation lasting no more than four hours and exceeding intensities of 25 I/ha is considered a shower. Heavy showers are most frequent in June, July and August, though they occur often even in May and September.
Throughout the last century, it is probable that the highest quantity of precipitation fell on 8 September 1963 in Budapest and its environs. One and a half months’ worth of rain fell in Budapest on that day. Rainfall measured at eight points on the Pest side exceeded even 100 mm, and the highest rainfall was recorded in Soroksár (142 mm). Moreover, of the communities situated east and south-west of the capital, 203 mm of precipitation was recorded in Gyömrő, 162 in Isaszeg, 137 in Maglód, and 132 mm in Vecsés on that day. The streams Rákos-patak and Szilas-patak flooded due to the heavy rains. Hund- reds of residential buildings were inundated on that day, just as they would have been during springtime floods. Several bridges were damaged. The stream Tápió-patak also burst its banks. However, it was .not only Budapest which received heavy precipitation, but the severest cloud-burst in Transdanubia was recorded from the town of Mende, producing 172 mm of rain.
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