Sonntag, 21. Oktober 2018
Meteorological report for September (Maribor)
In September, the summer weather continued, which farewell in the last third of the month. The average temperatures were constant at that time. In the last part of the month, temperatures dropped significantly on average. The reducing trend of the amount of precipitation was continued.
The difference between the highest (September 12) and the lowest (September 27) measured temperature in the month was as high as 28.5 °C. This is not such a big surprise, given the very high temperatures in the first part of the month and low in the last part of the month.
The average monthly temperature was also significantly higher than the average of the period from 1981 to 2010 – it was 17.1 °C, and it was 1.50 °C higher than the long-term average. The long-term average for September is 15.6 °C in Maribor. The average temperature in the first two thirds of the month fluctuated slightly but did not change excessively. In the last week, the average temperature dropped by as much as 10 to 14 °C. The difference between the average temperature of the coldest (September 26) and the warmest (September 12) day was 13.39 °C. There were also great differences between night and day temperatures, up to 20 °C, which is more than in the previous months.
In September, the daily average temperature was nine times below the average of the period from 1981 to 2010 (15.6 °C). The maximum temperature was only seven days below 20 °C, six days above 20 to 25 °C, and seventeen days above 25 °C. The lowest temperature in September was 1 °C, and the highest temperature was 29.5 °C. In the first nine months, the average temperature was 0.92 °C higher than the long-term average. In the last month, the average temperature increased by 0.07 ° C in relation to the long-term average.



Precipitation data show that there was very little precipitation in September, which has been going on for the last four months. In August, only 47,7 % of the precipitation dropped, as is the long-standing average. The measuring device detected 47.2 mm of precipitation, which is much less as long as the long-term average (99 mm of precipitation). In the first nine months, 22.4 mm less precipitation fell than the long-term average. In the first nine months we recorded as much as 126 precipitation days, almost half of all days (46.2 %).



The average relative humidity in September was 76.6 %, which is slightly more than in the months before. According to cold night, this was expected. Therefore, relative humidity, despite high daily temperatures, only six time dropped below 70 %. As a result, molds appeared in the vineyards. Consequently, we had to hurry up with harvesting grapes.

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