2017 |Estonian Environment Agency Weather Services

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)12^th 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) 8^th 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 3^rd place since 1883
Autumn – September, October, November, 2017	Pärnu	high three-month precipitation total	329 mm (146% of normal) the wettest 3^rd 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 9^th place since 1961
January	Jõhvi	low precipitation total	10 mm (22% of normal) the 3^rd 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 10^th 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 3^rd place since 1932
March	Pärnu	precipitation total higher than normal	60 mm (137% of normal) the 13^th 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 5^th-7^th place since 1959
April	Estonia	precipitation total higher than normal	49 mm (156% of normal) the 13^th place since 1961
April	Tiirikoja	precipitation total higher than normal	70 mm (241% of normal) the 4^th place since 1929
April	Tartu	precipitation total higher than normal	68 mm (225% of normal) the 11^th 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 3^rdplace 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); 1^st-2^nd place since 1963
May	Tooma	low precipitation total	5 mm (10% of normal) the 3^rd 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 6^th place since 1929
July	Estonia	cooler than normal	15,7 °C (anomaly −1,7 °C) the 12^th place since 1961
July	Estonia	low precipitation total	47 mm (66% of normal) the 11^th place since 1961
July	Uue-Lõve (Saaremaa Island)	precipitation total higher than normal	119 mm (156% of normal) the 9^th 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) 3^rd place since 1946
August	Tallinn	precipitation total higher than normal	180 mm (217% of normal) the 1^st 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 14^th place since 1961
September	Kihnu	precipitation total higher than normal	136 mm (220% of normal) the 3^rd place since 1931
September	Ruhnu	precipitation total higher than normal	125 mm (211% of normal) the 4^rthplace since 1906
September	Valga	precipitation total higher than normal	123 mm (208% of normal) the 7^th–8^th place since 1942
September	Viljandi	precipitation total higher than normal	134 mm (200% of normal) the 5^th place since 1906
September	Tartu	precipitation total higher than normal	119 mm (195% of normal) the 7^th 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) 5^th place since 1961
October	Virtsu	precipitation total higher than normal	170 mm (233% of normal) 2^th place since 1911
October	Tallinn	precipitation total higher than normal	153 mm (196% of normal) 2^nd place since 1883
October	Vilsandi	precipitation total higher than normal	132 mm (188% of normal) 2^nd 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) 9^th 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) 7^th place since 1961
December	Vilsandi	precipitation total higher than normal	98 mm (192% of normal) 2^nd place since 1899
December	Kihnu	precipitation total higher than normal	82 mm (181% of normal) 6^th place since 1931
December	Ristna	precipitation total higher than normal	108 mm (180% of normal) 2^nd place since 1922
December	Lääne-Nigula	precipitation total higher than normal	103 mm (183% of normal) 4^th place since 1964
The year 2017	Estonia	warmer than normal	the annual mean temperature 6,5ºC (normal +6,0 ºC)
The year 2017	Estonia	precipitation total higher than normal	707 mm (normal 672 mm)

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Estonian weather events in 2017 (normal for period 1981-2010)

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