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Weather events

Estonian weather events in 2015 (normal for period 1961-1990)

Period Region Strong anomalies Observed values and their effects
Winter – December (2014), January, February, 2015 Estonia unusually warm the tree-month mean temperature +0,3 ºC (normal -4,7 ºC), taking the 4th place among warmer winters since the winter 1961/1962
Winter – December (2014), January, February, 2015 Tartu–Tõravere unusually warm the three-month mean temperature -1,2 ºC (normal -5,9 ºC), taking the 5–7th  place since winter 1865/1866
Spring – March, April, May, 2015 Estonia unusually warm the three-month mean temperature +5,8 ºC (normal +3,7 ºC)
March Estonia unusually warm monthly mean temperature anomaly +4,6 ºC
March Tartu–Tõravere unusually warm monthly mean temperature anomaly +5,5 ºC, the second warmest march since 1866
April Estonia high precipitation totals monthly precipitation total 168% of normal, the 6th place since 1961
April Estonia warmer than normal monthly mean temperature anomaly +1,8 ºC
April, 23 in Sõmeru (Lääne-Viru County) sandstorm
April, 23 in Salme (Saaremaa Island) sandstorm
May Narva (north-eastern part of the country) variable in precipitation – low precipitation total the monthly mean precipitation total 23 mm (54% of normal)
May Tiirikoja (also north-eastern part of the country, distance between Narva and Tiirikoja about 110 km) variable in precipitation – high precipitation total the monthly mean precipitation total 60 mm (140% of normal)
June Estonia cooler than normal monthly mean temperature anomaly -0,6 ºC
July, 16 the Moonsund Archipelago two waterspouts
July, 16 at Saarejärve (Jõgeva County) weak tornado
July, 17 Põlvamaa County heavy hail
July, 17 Vana-Kuuste (Tartu County) weak tornado
August, 6–8 Estonia short heat wave maximum temperature was measured in Võru on 6th August +31,6 ºC
August, 12 Estonia severe hailstorm diameter of hailstones 4–7 cm, damaged fields in the central part of Estonia
September, 6 Salme (Saaremaa Island) weak tornado
September, 7 Sõmeru (Lääne-Viru County) weak tornado
October Estonia low precipitation total the monthly mean precipitation total 12 mm (normal 66 mm), the first place since 1961
November Estonia unusually warm the monthly mean temperature +4,9 ºC (anomaly 3,5 ºC)
second decade of November Estonia unusually warm the mean temperature in second decade of the month 5,5 °C (normal 1,4 °C), several stations got their new monthly temperature records
December Estonia unusually warm the monthly mean temperature +3,3 ºC (anomaly 6,1 ºC), the second place since 1961
December, 4–6 Estonia strong storm wind gusts reached up to 31 m/s, causing damages in forests, also many power lines were damaged
December, 20 Tartu-Tõravere new monthly temperature record for December daily maximum temperature reached up to +12,5ºC
The year 2015 Vilsandi Island high annual mean temperature annual mean temperature +8,8 ºC (normal +6,4 ºC), the highest value since 1866
Tartu–Tõravere high annual mean temperature annual mean temperature +7,4 ºC (normal +4,9 ºC), the highest value since 1866
Estonia high annual mean temperature the annual mean temperature was +7,6 ºC (normal for the reference period is 5,2 ºC) taking the first place among warmer years since 1961