TEHRAN – Since the beginning of the summer, June 22, until September 4, a total of 4.9 mm of rainfall has been recorded in the country, indicating a 43-percent decrease from the long-term figure of 8.5 mm, according to the Meteorological Organization.

According to the latest report, from August 29 to September 4, the country received 0.7 mm of rainfall, a decrease of 5.1 percent compared to the 0.8 mm of rain recorded in the long term, ISNA reported.

From the beginning of the 5th Iranian calendar month, August 23,  to September 4, the recorded precipitation amounted to one millimeter, which is 37.2 percent less than the long-term recorded amount, 1.6 mm.

Since the beginning of the current water year (September 23, 2024) until September 4, the country received about 139.2 mm of rain on average, which has decreased by 40.1 percent compared to the long-term amount of 232.2 mm.

Rainfall in all provinces has been less than normal. Sistan-Baluchestan and Hormozgan provinces have recorded the lowest amount of rainfall, receiving 71.3 and 70.7 percent less rain than normal, respectively.

Tehran province is also among the provinces that have experienced a significant decline in precipitation. Tehran’s long-term average rainfall stands at 276.2 mm, while in the current water year, it has only received an average of 142.5 mm, which indicates a 48.4 percent reduction.

Over 250 mm rain in previous water year

The previous water year (September 22, 2023 – September 22, 2024) came to an end with 252.7 mm of precipitation, showing a 19 percent increase compared to the year before.

The low precipitation at the beginning of the previous water year was worrisome, but the volume of precipitation improved over time.

Due to successive years of drought, the increase in rainfall amounts did not compensate for the water deficit in the country, and some provinces are suffering from water shortage, IRNA reported.

A total of 10 provinces received less than normal rainfall.

According to the latest reports, the total amount of recorded rainfall in the previous water year (ended on September 23) amounted to 252.7 mm, which signifies a 19 percent increase compared to the 212.9 mm of rain received in the water year before (September 2022 –September 2023).

Compared to the long-term figure, 248.7 mm, it shows a two percent increase.

MT/MG