Average daily temperatures far below normal.
On July 12, record low temperatures were observed in several cities – in Karelia, in the continental regions of the Leningrad region, in the regions of Vologda and Kostroma.
In Petrozavodsk the temperature dropped to 3.2°C, beating the previous record of 3.6 degrees.
In Cherepovets it dropped to 1.8°C, beating the previous record of 5.0 degrees set in 1968.
in Tikhvin it dropped to 2.4°C, beating the previous record of 5.3 degrees set in 1958.
In Kostroma it dropped to 5.4°C, beating the previous record of 5.5 degrees set in 1968.
The average daily temperature was 8-10 degrees below normal. This was not observed in these places in the middle of summer for almost 50 years !!
Thanks to Martin iebert for this link