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Weather events

Estonian weather events in 2017 (normal for period 1981-2010)
Period Region Strong anomalies Observed values and their effects
Winter – December (2016), January, February, 2017 Estonia warmer than normal the three-month mean temperature –1,3ºC (normal –3,3ºC)12th warmest winter since 1961
Winter – December (2016), January, February, 2017 Estonia precipitation total higher than normal the three-month precipitation total 82 mm (normal 138 mm) 8th place since 1961
Spring – March, April, May, 2017 Estonia a bit cooler than normal the three-month mean temperature 4,5ºC (normal 4,6°C)
Spring – March, April, May, 2017 Estonia a bit lower precipitation total than normal 104 mm (normal 110mm)
Summer – June, July, August, 2017 Estonia cooler than normal the three-month mean temperature 15,2ºC (anomaly –0,8°C)
Summer – June, July, August, 2017 Estonia low precipitation total 204 mm (91% of normal)
Autumn – September, October, November, 2017 Estonia high three-month precipitation total 268 mm (133% of normal) the wettest autumn since 1961; floods in fields and forests
Autumn – September, October, November, 2017 Vilsandi high three-month precipitation total 314 mm (154% of normal) the wettest autumn since 1899
Autumn – September, October, November, 2017 Sõrve high three-month precipitation total 316 mm (164% of normal) the wettest autumn since 1886
Autumn – September, October, November, 2017 Kihnu high three-month precipitation total 316 mm (172% of normal) the wettest autumn since 1931
Autumn – September, October, November, 2017 Ruhnu high three-month precipitation total 317 mm (173% of normal) the wettest autumn since 1906
Autumn – September, October, November, 2017 Tallinn high three-month precipitation total 332 mm (154% of normal) the wettest 3rd place since 1883
Autumn – September, October, November, 2017 Pärnu high three-month precipitation total 329 mm (146% of normal) the wettest 3rd place since  1878
January Estonia warmer than normal the monthly mean temperature  –2,1ºC (anomaly 1,4°C)
January Estonia low precipitation total the monthly precipitation total 25 mm (49% of normal) the 9th place since 1961
January Jõhvi low precipitation total 10 mm (22% of normal) the 3rd place since 1927
January, 28 Estonia heavy glazed frost on trees and bushes frost stained on few days, damaged the trees
February Estonia warmer than normal the monthly mean temperature –2,5ºC (anomaly 2,0°C)
February Estonia low precipitation total the monthly mean precipitation total 35 mm (86% of normal)
March Estonia warmer than normal the monthly mean temperature 1,1ºC (anomaly 2,2°C) the 10th place since 1961
March Estonia precipitation total higher than normal 41 mm (111% of normal)
March Kihnu precipitation total higher than normal 60 mm (201% of normal) the 3rd place since 1932
March Pärnu precipitation total higher than normal 60 mm (137% of normal) the 13th place since 1878
April Estonia cooler than normal the monthly mean temperature 3,0ºC (anomaly −1,6 °C)
April Jõhvi cooler than normal the monthly mean temperature 1,9 °C (anomaly −2,5 °C); the 5th-7th place since 1959
April Estonia precipitation total higher than normal 49 mm (156% of normal) the 13th place since 1961
April Tiirikoja precipitation total higher than normal 70 mm (241% of normal) the 4th place since 1929
April Tartu precipitation total higher than normal 68 mm (225% of normal) the 11th place since 1866
May Estonia cooler than normal the monthly mean temperature 9,3 °C (anomaly −1,1 °C)
May, 9–10 Islands of Western Estonia exceptional snow event Uue-Lõve station registered snow depth 5 cm on May 9
May Estonia low precipitation total 15 mm (35% of normal) the 3rdplace since 1961
May Türi low precipitation total 8 mm (19% of normal) driest May since 1925
May Väike-Maarja low precipitation total 6 mm (14% of normal); 1st-2nd place since 1963
May Tooma low precipitation total 5 mm (10% of normal) the 3rd place since 1915
June Estonia cooler than normal the monthly mean temperature 13,4 °C (anomaly −1,0 °C)
June Estonia precipitation total higher than normal 69 mm (101% of normal)
June, 11 Estonia heavy rainfall floods in some places
June Tiirikoja precipitation total higher than normal 113 mm (153% of normal) the 6th place since 1929
July Estonia cooler than normal 15,7 °C (anomaly −1,7 °C) the 12th place since 1961
July Estonia low precipitation total 47 mm (66% of normal) the 11th place since 1961
July Uue-Lõve (Saaremaa Island) precipitation total higher than normal 119 mm (156% of normal) the 9th place since 1958
July, 13 Tartu heavy rainfall floods in Tartu
July 17–18 and 21 near the Islands of Western Estonia waterspouts –
August Estonia precipitation total higher than normal 88 mm (106% of normal)
August Pärnu precipitation total higher than normal 48 mm (61% of normal)
August Kehra precipitation total higher than normal 198 mm in Kehra (202% of normal) 3rd place since 1946
August Tallinn precipitation total higher than normal 180 mm (217% of normal) the 1st place since 1883
August, 12 Ambla parish (in central Estonia) tornado EF0 –
August, 12–13 Estonia thunderstorm, heavy rainfall and hail the strongest wind gust 38,2 m/s measured in Island Osmussaar; floods, damage to roofs, trees were toppled
August, 17 Tallinn heavy rainfall floods in Tallinn
August, 19 Estonia thunderstorm damage to the roofs and to the trees
September Estonia warmer than normal the monthly mean temperature 11,5 °C (anomaly 0,9 °C).
September Estonia precipitation total higher than normal 87 mm (135% of normal) the 14th place since 1961
September Kihnu precipitation total higher than normal 136 mm (220% of normal) the 3rd place since 1931
September Ruhnu precipitation total higher than normal 125 mm (211% of normal) the 4rth place since 1906
September Valga precipitation total higher than normal 123 mm (208% of normal) the 7th–8th place since 1942
September Viljandi precipitation total higher than normal 134 mm (200% of normal) the 5th place since 1906
September Tartu precipitation total higher than normal 119 mm (195% of normal) the 7th place since 1866
October Estonia cooler than normal the monthly mean temperature 6,2 °C (anomaly −0,5 °C)
October Estonia precipitation total higher than normal 115 mm (156% of normal) 5th place since 1961
October Virtsu precipitation total higher than normal 170 mm (233% of normal) 2th place since 1911
October Tallinn precipitation total higher than normal 153 mm (196% of normal) 2nd place since 1883
October Vilsandi precipitation total higher than normal 132 mm (188% of normal) 2nd place since 1899
November Estonia warmer than normal the monthly mean temperature 1,4 °C (anomaly 1,9 °C)
November Estonia precipitation total higher than normal 63 mm (104% of normal)
November Vilsandi precipitation total higher than normal 106 mm (151% of normal) 9th place since 1899
December Estonia warmer than normal the monthly mean temperature 1,3 ºC (anomaly 3,6 ºC)
December Estonia precipitation total higher than normal 76 mm (144% of normal) 7th place since 1961
December Vilsandi precipitation total higher than normal 98 mm (192% of normal)  2nd place since 1899
December Kihnu precipitation total higher than normal 82 mm (181% of normal) 6th place since 1931
December Ristna precipitation total higher than normal 108 mm (180% of normal) 2nd place since 1922
December Lääne-Nigula precipitation total higher than normal 103 mm (183% of normal) 4th place since 1964
The year 2017 Estonia warmer than normal the annual mean temperature 6,5ºC (normal +6,0 ºC)
Estonia precipitation total higher than normal 707 mm (normal 672 mm)