Do roku 2016 raport oznaczony numerem 1 był tworzony za okres od 1 kwietnia do 31 maja. Od roku 2017 analizy są wykonywane o dekadę wcześniej czyli 1 raport oznacza okres od 21 marca do 20 maja

Communication report regarding the incidences of drought conditions in Poland

Year: 2010; period: 11 (11.VII - 10.IX)

In the eleventh reporting period, i.e. from 11 July to 10 September 2010, there was no occurrence of agricultural drought conditions in Poland. The values of climatic water balance (CWB), on the basis of which the risk assessment of drought is calculated were positive. The calculated values of CWB for the above-mentioned crops are much higher than the critical value.

This year's July was one of the warmest months of the last century. The air temperature ranged from 20 to 22°C, in Poland these far exceeded the standards for three decades from 1971 to 2000 from the 2.5-4°C.

August was also very warm. The highest average temperature (over 20°C) occurred in the Lublin region, while the lowest around 17°C and the Przedgórze Sudeckie and Pogórze Zachodniosudeckie.

However, the first ten days of September, the whole country was colder, the temperature ranged from 11-12°C, only on the coast was little more than 13°C.

In July, we found a large variation in precipitation. The highest rainfall exceeding 300 mm occurred in the southern and south-eastern parts of the country. High rainfall also occurred in the Dolny Śląsk and Opole region (120-150 mm), and especially in the Kotlina Śląska (over 180 mm). However, in the Warmia and Mazury region, eastern Mazowsze and the northern part of the Lubelski region, the rainfall was small (50-70 mm), 50-80% of the long-term norm.

In August, a large variation in precipitation also took place. High rainfall was recorded in western and north-western parts of Poland and western Beskidy, locally exceeding 200 mm. However, lower rainfall, not exceeding 80 mm occurred on the Silesian Plains and Upland.

Poland in terms of precipitation in the first ten days of September was definitely diverse, the east and south-east experienced very heavy rainfall in places amounting to more than 100 mm. In the rest of the country, the rainfall was much smaller, ranging from 10 to 30 mm.

In the sixty-day period, a clear upward trend in the value of CWB continued. In this reporting period, the value of CWB increased, as in the previous period, the average of about 70 mm, most in the Lublin region, Podkarpackie, Małopolska and the south-eastern Mazowsze - more than 100 mm.

The highest value of CWB, by even more than 200 mm occurred in Żywiec, the lowest in the vicinity of Kalisz (-40 mm).