The month of October was the warmest in Greece in the last 15 years, the National Observatory of Athens reported on Wednesday.
According to data collected by a network of 51 meteorological stations across the country, the average maximum daily temperatures were very high compared to the average for the period 2010-19.

Macedonia and Thrace recorded the largest deviation, with the monthly average 3.5 degrees Celsius above normal.
In Athens, the average monthly maximum deviation was +1.9° C, with 25 of the 31 days of the month being warmer than usual.
In Thessaloniki, 27 days of the month were warmer than the 2010-19 seasonal average, where the average maximum temperature for the month was +2.9° C.
There was an absence of negative temperatures, meteo service of the National Observatory of Athens meteo.gr noted.

As somebody who keeps swimming in Athens I can confirm that the sea was warmer last weekend, October 28-29, than beginning of the month.

OK, it was the warmest October in the last 15 years. How should we understand that: is it just an independent statement that doesn’t say anything about the longer past (>15 years), or does it mean that more than 15 years ago, we also had such a warm October. If it is the first, why doesn’t it say ‘in the last 25 years’, or ‘in the last 100 years’, or ‘since measurements were recorded’?