Built 2026-10-19 (19 October 2026)

Kotlas Threshold Days by Year (RSM00022887)

13 fixed thresholds counted per year at Kotlas (RSM00022887): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kotlas Thresholds

  • Kotlas: days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 2012 with 20.
  • Kotlas: days with a maximum temperature at or below 0 C (32 F) in 84 years, most in 1945 with 160.
  • Kotlas: nights with a minimum temperature at or below 0 C (32 F) in 84 years, most in 1941 with 224.
  • Kotlas: nights with a minimum temperature at or below -10 C (14 F) in 84 years, most in 1955 with 123.
  • 13 fixed thresholds have at least one qualifying day at Kotlas.
65 years with a qualifying day
Days at or above 30 C (86 F) per year at Kotlas Days per year at Kotlas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2010. 01020301936: 71937: 31938: 131939: 31940: 71941: 11943: 51944: 11945: 11946: 31947: 11948: 51952: 11953: 11954: 81956: 11957: 81958: 21960: 51961: 51963: 31964: 91965: 11966: 51967: 31968: 11969: 11970: 31972: 151973: 41974: 41977: 21978: 11981: 91982: 31983: 21984: 21985: 11987: 11988: 141989: 101990: 51991: 51996: 41998: 71999: 52000: 92001: 62002: 72003: 52004: 22005: 12006: 82007: 32009: 32010: 292011: 112012: 12013: 82014: 22015: 42016: 22017: 22018: 22025: 31936194419541964197219831991200320112018
Days per year at Kotlas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2010.
Days at or above 30 C (86 F) per year at Kotlas
YearDaysDecade average
193676.5
193736.5
1938136.5
193936.5
194073
194113
194353
194413
194513
194633
194713
194853
195213.5
195313.5
195483.5
195613.5
195783.5
195823.5
196053.7
196153.7
196333.7
196493.7
196513.7
196653.7
196733.7
196813.7
196913.7
197034.8
1972154.8
197344.8
197444.8
197724.8
197814.8
198195.3
198235.3
198325.3
198425.3
198515.3
198715.3
1988145.3
1989105.3
199055.2
199155.2
199645.2
199875.2
199955.2
200094.9
200164.9
200274.9
200354.9
200424.9
200514.9
200684.9
200734.9
200934.9
2010296.8
2011116.8
201216.8
201386.8
201426.8
201546.8
201626.8
201726.8
201826.8
202533
First to last qualifying date each year at Kotlas For each year, a bar from the first to the last day at Kotlas meeting 30 C (86 F). 1936: 3 June 1936 to 8 August 19361937: 12 June 1937 to 1 July 19371938: 5 July 1938 to 25 August 19381939: 14 June 1939 to 22 June 19391940: 6 July 1940 to 25 August 19401941: 6 July 1941 to 6 July 19411943: 12 July 1943 to 17 July 19431944: 26 May 1944 to 26 May 19441945: 5 July 1945 to 5 July 19451946: 20 June 1946 to 23 July 19461947: 11 June 1947 to 11 June 19471948: 2 June 1948 to 27 June 19481952: 27 June 1952 to 27 June 19521953: 25 July 1953 to 25 July 19531954: 12 June 1954 to 11 July 19541956: 28 June 1956 to 28 June 19561957: 11 May 1957 to 26 July 19571958: 24 June 1958 to 25 July 19581960: 12 June 1960 to 2 August 19601961: 17 June 1961 to 23 July 19611963: 26 June 1963 to 20 July 19631964: 2 July 1964 to 4 August 19641965: 7 July 1965 to 7 July 19651966: 28 May 1966 to 4 August 19661967: 4 August 1967 to 23 August 19671968: 24 June 1968 to 24 June 19681969: 30 August 1969 to 30 August 19691970: 2 July 1970 to 14 August 19701972: 1 July 1972 to 23 August 19721973: 17 June 1973 to 6 July 19731974: 20 July 1974 to 25 July 19741977: 4 August 1977 to 6 August 19771978: 24 June 1978 to 24 June 19781981: 11 June 1981 to 4 August 19811982: 6 July 1982 to 8 July 19821983: 3 July 1983 to 4 July 19831984: 21 May 1984 to 27 June 19841985: 10 August 1985 to 10 August 19851987: 20 June 1987 to 20 June 19871988: 7 June 1988 to 23 July 19881989: 9 June 1989 to 15 July 19891990: 8 July 1990 to 12 July 19901991: 26 June 1991 to 1 July 19911996: 11 July 1996 to 14 July 19961998: 11 June 1998 to 11 July 19981999: 24 June 1999 to 3 July 19992000: 31 May 2000 to 23 July 20002001: 13 July 2001 to 22 July 20012002: 4 July 2002 to 27 July 20022003: 2 August 2003 to 6 August 20032004: 30 June 2004 to 1 July 20042005: 20 July 2005 to 20 July 20052006: 21 June 2006 to 16 July 20062007: 16 August 2007 to 18 August 20072009: 15 June 2009 to 14 July 20092010: 14 May 2010 to 11 August 20102011: 1 July 2011 to 28 July 20112012: 1 August 2012 to 1 August 20122013: 24 June 2013 to 5 July 20132014: 21 May 2014 to 25 May 20142015: 30 May 2015 to 22 June 20152016: 19 June 2016 to 3 July 20162017: 16 July 2017 to 17 July 20172018: 25 June 2018 to 2 August 20182025: 2 August 2025 to 4 August 202519361946196019701984199920092018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Kotlas meeting 30 C (86 F).
First to last qualifying date each year at Kotlas
YearFirst dateLast date
19361936-06-031936-08-08
19371937-06-121937-07-01
19381938-07-051938-08-25
19391939-06-141939-06-22
19401940-07-061940-08-25
19411941-07-061941-07-06
19431943-07-121943-07-17
19441944-05-261944-05-26
19451945-07-051945-07-05
19461946-06-201946-07-23
19471947-06-111947-06-11
19481948-06-021948-06-27
19521952-06-271952-06-27
19531953-07-251953-07-25
19541954-06-121954-07-11
19561956-06-281956-06-28
19571957-05-111957-07-26
19581958-06-241958-07-25
19601960-06-121960-08-02
19611961-06-171961-07-23
19631963-06-261963-07-20
19641964-07-021964-08-04
19651965-07-071965-07-07
19661966-05-281966-08-04
19671967-08-041967-08-23
19681968-06-241968-06-24
19691969-08-301969-08-30
19701970-07-021970-08-14
19721972-07-011972-08-23
19731973-06-171973-07-06
19741974-07-201974-07-25
19771977-08-041977-08-06
19781978-06-241978-06-24
19811981-06-111981-08-04
19821982-07-061982-07-08
19831983-07-031983-07-04
19841984-05-211984-06-27
19851985-08-101985-08-10
19871987-06-201987-06-20
19881988-06-071988-07-23
19891989-06-091989-07-15
19901990-07-081990-07-12
19911991-06-261991-07-01
19961996-07-111996-07-14
19981998-06-111998-07-11
19991999-06-241999-07-03
20002000-05-312000-07-23
20012001-07-132001-07-22
20022002-07-042002-07-27
20032003-08-022003-08-06
20042004-06-302004-07-01
20052005-07-202005-07-20
20062006-06-212006-07-16
20072007-08-162007-08-18
20092009-06-152009-07-14
20102010-05-142010-08-11
20112011-07-012011-07-28
20122012-08-012012-08-01
20132013-06-242013-07-05
20142014-05-212014-05-25
20152015-05-302015-06-22
20162016-06-192016-07-03
20172017-07-162017-07-17
20182018-06-252018-08-02
20252025-08-022025-08-04

Every Fixed Threshold

Fixed thresholds at Kotlas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days652920103
35 C (95 F): Days1120101
90 F (32.2 C): Days191420101
0 C (32 F): Ice days (max84160194531
0 C (32 F): Frost days (min84224194170
-10 C (14 F): Days with min84123195522
-20 C (-4 F): Days with min847219663
-30 C (-22 F): Days with min802819697
-40 C (-40 F): Days with min23619871
20 C (68 F): Tropical nights (min8419964
10 mm (0.39 in): Days with 10 mm or more rain852020123
25 mm (0.98 in): Days with 25 mm or more rain63519522
50 mm (1.97 in): Days with 50 mm or more rain6119521

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.

Download the Data

  • Data for Kotlas threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).