Aspects Concerning the Rainy Spells in the Western Plain of Romania

Abstract

The present work analyses the rainy spells on the territory of the Western Plain at the North of the Mureş River. Daily precipitation data were used from a number of 5 weather stations and for a period of 42 years (1961-2002). Only the stations with a common observation period were chosen. Periods with two or more consecutive rainy days were studied and the analyses show a total of about 7,000 rainy spells. The number of the rainy spells grows from the South to the North once with the latitude but also from the West to the East, once with the altitude. Within a year may occur, on the average, about 30-35 rainy spells with an average duration of 4 days. The duration of the rainy spells varies between 2-19 days. On the analysed territory, 119-141 rainy days may occur annually, on the average. Namely, on this territory it rains on the average about 4-4.5 months a year. Most of the rainy days were recorded in the intervals November-January and April-June.

Keywords

• Rainy spell
• Rainy day
• Length
• Frequency