Built 2026-10-18 (18 October 2026)

Ust-Koksa Weather Records (RSM00036229)

Record envelope, standing records and threshold days for Ust-Koksa (RSM00036229), Russia, with 90 years of record.

Key Facts for Ust-Koksa

  • Ust-Koksa (RSM00036229) is a weather station in Russia at 50.28 latitude and 85.62 longitude, 977 m (3,205 ft) above sea level.
  • The station reports from 1936 to 2025, 90 years of record.
  • 1,464 records set at Ust-Koksa still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Ust-Koksa set a daily record precipitation of 24.9 mm (1.0 in) on 18 August 2025.

About the Station

  • Location: Russia, 50.28 latitude, 85.62 longitude.
  • Elevation: 977 m (3,205 ft).
  • Period of record: 1936 to 2025, 90 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

9 days at or beyond a record
Daily record high and record low at Ust-Koksa, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ust-Koksa. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Ust-Koksa. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Ust-Koksa, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan5.7 C (42.3 F)-48.5 C (-55.3 F)1.0 C (33.8 F)-33.0 C (-27.4 F)
Feb8.2 C (46.8 F)-43.9 C (-47.0 F)-1.6 C (29.1 F)-32.1 C (-25.8 F)
Mar17.2 C (63.0 F)-37.8 C (-36.0 F)13.1 C (55.6 F)-24.5 C (-12.1 F)
Apr27.3 C (81.1 F)-25.0 C (-13.0 F)25.1 C (77.2 F)-11.1 C (12.0 F)
May33.2 C (91.8 F)-10.7 C (12.7 F)30.0 C (86.0 F)-2.2 C (28.0 F)
Jun33.4 C (92.1 F)-3.0 C (26.6 F)32.3 C (90.1 F)3.7 C (38.7 F)
Jul36.5 C (97.7 F)-1.2 C (29.8 F)33.9 C (93.0 F)4.4 C (39.9 F)
Aug36.4 C (97.5 F)-4.5 C (23.9 F)27.0 C (80.6 F)2.6 C (36.7 F)
Sep31.2 C (88.2 F)-9.8 C (14.4 F)n/an/a
Oct23.7 C (74.7 F)-22.6 C (-8.7 F)n/an/a
Nov14.2 C (57.6 F)-42.0 C (-43.6 F)n/an/a
Dec8.2 C (46.8 F)-46.4 C (-51.5 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ust-Koksa by the year they were set 1,464 records at Ust-Koksa still stand. 1969 holds the most, with 37. 0102030401936: 221937: 191938: 111939: 201940: 301941: 181942: 131943: 71944: 301945: 111946: 41947: 51948: 251949: 171950: 131951: 211952: 181953: 191954: 291955: 141956: 271957: 221958: 311959: 171960: 341961: 121962: 131963: 71964: 131965: 111966: 281967: 91968: 251969: 371970: 111971: 181972: 211973: 121974: 201975: 121976: 121977: 131978: 151979: 291980: 111981: 121982: 141983: 81984: 141985: 71986: 191987: 261988: 91989: 151990: 131991: 81992: 151993: 251994: 111995: 181996: 111997: 161998: 281999: 262000: 132001: 132002: 182003: 242004: 192005: 122006: 52007: 132008: 222009: 112010: 112011: 112012: 122013: 172014: 142015: 212016: 132017: 182018: 202019: 82020: 102021: 82022: 172023: 152024: 72025: 111936194519541963197219811990199920082017
1,464 records at Ust-Koksa still stand. 1969 holds the most, with 37.
Standing records at Ust-Koksa by the year they were set
Year setStanding records
193622
193719
193811
193920
194030
194118
194213
19437
194430
194511
19464
19475
194825
194917
195013
195121
195218
195319
195429
195514
195627
195722
195831
195917
196034
196112
196213
19637
196413
196511
196628
19679
196825
196937
197011
197118
197221
197312
197420
197512
197612
197713
197815
197929
198011
198112
198214
19838
198414
19857
198619
198726
19889
198915
199013
19918
199215
199325
199411
199518
199611
199716
199828
199926
200013
200113
200218
200324
200419
200512
20065
200713
200822
200911
201011
201111
201212
201317
201414
201521
201613
201718
201820
20198
202010
20218
202217
202315
20247
202511

All-Time Record Progression

4 new records
When Ust-Koksa set new all-time records 4 all-time records were set at Ust-Koksa between 11 May 1973 and 16 July 2004. Each dot is a new record. Record daily precipitationRecord high maximum temperatureRecord high minimum temperature11 May 1973: Record daily precipitation 70.3 mm (2.8 in)11 July 1974: Record high maximum temperature 36.5 C (97.7 F)17 July 1992: Record high minimum temperature 18.1 C (64.6 F)16 July 2004: Record high minimum temperature 18.7 C (65.7 F)1975198019851990199520002005
4 all-time records were set at Ust-Koksa between 11 May 1973 and 16 July 2004. Each dot is a new record.
When Ust-Koksa set new all-time records
DateKindDetail
1973-05-11Record daily precipitationRecord daily precipitation 70.3 mm (2.8 in)
1974-07-11Record high maximum temperatureRecord high maximum temperature 36.5 C (97.7 F)
1992-07-17Record high minimum temperatureRecord high minimum temperature 18.1 C (64.6 F)
2004-07-16Record high minimum temperatureRecord high minimum temperature 18.7 C (65.7 F)

Wettest Day of Each Month

May: 70.3 mm (2.8 in)
Record daily precipitation for each month at Ust-Koksa The wettest day on record for each calendar month at Ust-Koksa. The most was 70.3 mm (2.8 in) on 11 May 1973. 020406080 Jan: 19.8 mm (0.8 in), 9 January 1940 Jan Feb: 27.9 mm (1.1 in), 11 February 2024 Feb Mar: 34.6 mm (1.4 in), 31 March 2018 Mar Apr: 51.8 mm (2.0 in), 3 April 1952 Apr May: 70.3 mm (2.8 in), 11 May 1973 May Jun: 50.1 mm (2.0 in), 24 June 1972 Jun Jul: 43.7 mm (1.7 in), 13 July 1979 Jul Aug: 40.2 mm (1.6 in), 9 August 1981 Aug Sep: 36.3 mm (1.4 in), 18 September 1970 Sep Oct: 48.7 mm (1.9 in), 20 October 1977 Oct Nov: 35.1 mm (1.4 in), 2 November 1963 Nov Dec: 22.3 mm (0.9 in), 1 December 1984 Dec
The wettest day on record for each calendar month at Ust-Koksa. The most was 70.3 mm (2.8 in) on 11 May 1973.
Record daily precipitation for each month at Ust-Koksa
MonthRecord daily precipitation (mm)Date
Jan19.8 mm (0.8 in)9 January 1940
Feb27.9 mm (1.1 in)11 February 2024
Mar34.6 mm (1.4 in)31 March 2018
Apr51.8 mm (2.0 in)3 April 1952
May70.3 mm (2.8 in)11 May 1973
Jun50.1 mm (2.0 in)24 June 1972
Jul43.7 mm (1.7 in)13 July 1979
Aug40.2 mm (1.6 in)9 August 1981
Sep36.3 mm (1.4 in)18 September 1970
Oct48.7 mm (1.9 in)20 October 1977
Nov35.1 mm (1.4 in)2 November 1963
Dec22.3 mm (0.9 in)1 December 1984

Period of Record Coverage

1936 to 2025
Days with data per year at Ust-Koksa 89 years of record at Ust-Koksa, 1936 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 1942, 1943, 1945, 1947, 1961, 1962, 2025. 1936: 365 of 366 days1937: 365 of 365 days1938: 334 of 365 days1939: 365 of 365 days1940: 336 of 366 days1941: 365 of 365 days1942: 304 of 365 days1943: 123 of 365 days1944: 366 of 366 days1945: 151 of 365 days1947: 306 of 365 days1948: 366 of 366 days1949: 334 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 321 of 365 days1962: 304 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 359 of 365 days1966: 364 of 365 days1967: 364 of 365 days1968: 338 of 366 days1969: 362 of 365 days1970: 361 of 365 days1971: 357 of 365 days1972: 362 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 341 of 365 days2020: 347 of 366 days2021: 336 of 365 days2022: 347 of 365 days2023: 330 of 365 days2024: 338 of 366 days2025: 222 of 365 days195019651980199520102025
89 years of record at Ust-Koksa, 1936 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 1942, 1943, 1945, 1947, 1961, 1962, 2025.
Days with data per year at Ust-Koksa
YearDays with dataShare of yearComplete
1936365100%Yes
1937365100%Yes
193833492%Yes
1939365100%Yes
194033692%Yes
1941365100%Yes
194230483%No
194312334%No
1944366100%Yes
194515141%No
194730684%No
1948366100%Yes
194933492%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
196132188%No
196230483%No
1963365100%Yes
1964366100%Yes
196535998%Yes
1966364100%Yes
1967364100%Yes
196833892%Yes
196936299%Yes
197036199%Yes
197135798%Yes
197236299%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
201934193%Yes
202034795%Yes
202133692%Yes
202234795%Yes
202333090%Yes
202433892%Yes
202522261%No

Latest Records

20
Latest records at Ust-Koksa
DateStationRecordValueBeat old record byOld record stoodSignificance
18 August 2025Ust-Koksa, RUdaily rain24.9 mm (1.0 in)5.4 mm (0.21 in)88 years20 of 100 (Routine)
9 August 2025Ust-Koksa, RUdaily low max12.4 C (54.3 F)2.4 C (4.3 F)19 years19 of 100 (Routine)
27 July 2025Ust-Koksa, RUdaily high max33.9 C (93.0 F)1.0 C (1.8 F)8 years13 of 100 (Routine)
19 July 2025Ust-Koksa, RUdaily high max33.6 C (92.5 F)0.2 C (0.4 F)42 years21 of 100 (Routine)
13 June 2025Ust-Koksa, RUdaily high max32.3 C (90.1 F)1.7 C (3.1 F)12 years15 of 100 (Routine)
28 May 2025Ust-Koksa, RUdaily low max5.8 C (42.4 F)3.0 C (5.4 F)86 years39 of 100 (Notable)
9 May 2025Ust-Koksa, RUdaily high max27.3 C (81.1 F)1.1 C (2.0 F)87 years36 of 100 (Notable)
24 April 2025Ust-Koksa, RUdaily rain8.6 mm (0.34 in)0.4 mm (0.02 in)59 years20 of 100 (Routine)
13 April 2025Ust-Koksa, RUdaily high max25.1 C (77.2 F)2.8 C (5.0 F)12 years16 of 100 (Routine)
9 April 2025Ust-Koksa, RUdaily rain14.0 mm (0.6 in)3.2 mm (0.13 in)70 years20 of 100 (Routine)
21 March 2025Ust-Koksa, RUdaily high max13.1 C (55.6 F)3.5 C (6.3 F)18 years19 of 100 (Routine)
30 January 2025Ust-Koksa, RUdaily rain4.1 mm (0.16 in)0.5 mm (0.02 in)62 years20 of 100 (Routine)
22 January 2025Ust-Koksa, RUdaily high max1.0 C (33.8 F)1.0 C (1.8 F)66 years29 of 100 (Routine)
19 January 2025Ust-Koksa, RUdaily high max-0.8 C (30.6 F)0.4 C (0.7 F)28 years17 of 100 (Routine)
18 January 2025Ust-Koksa, RUdaily rain4.1 mm (0.16 in)1.5 mm (0.06 in)52 years20 of 100 (Routine)
18 January 2025Ust-Koksa, RUdaily high max0.0 C (32.0 F)0.3 C (0.5 F)3 years9 of 100 (Routine)
7 November 2024Ust-Koksa, RUdaily rain16.0 mm (0.6 in)0.2 mm (0.01 in)30 years17 of 100 (Routine)
6 November 2024Ust-Koksa, RUdaily high min3.1 C (37.6 F)1.1 C (2.0 F)23 years15 of 100 (Routine)
31 July 2024Ust-Koksa, RUdaily high min15.4 C (59.7 F)0.8 C (1.4 F)60 years28 of 100 (Routine)
29 July 2024Ust-Koksa, RUdaily high min15.7 C (60.3 F)0.3 C (0.5 F)8 years11 of 100 (Routine)

Climate Trend

70 complete years, 1936 to 2018
Annual mean temperature at Ust-Koksa as warming stripes, 1936 to 2018 One stripe for each of 70 complete years at Ust-Koksa, 1936 to 2018. Blue stripes are years cooler than the station's own mean of 0.0 C (31.9 F); red stripes are warmer. The coolest year was 1936, at -2.5 C (27.5 F), and the warmest was 2002, at 2.3 C (36.1 F). The strongest colour marks a difference of 2.5 C (4.5 F). 1936: -2.5 C, -2.5 C from the station mean1939: -1.7 C, -1.7 C from the station mean1941: -0.2 C, -0.2 C from the station mean1944: -2.0 C, -2.0 C from the station mean1948: -0.6 C, -0.5 C from the station mean1950: -1.7 C, -1.7 C from the station mean1951: -0.5 C, -0.5 C from the station mean1952: -2.1 C, -2.1 C from the station mean1954: -2.3 C, -2.3 C from the station mean1955: -0.2 C, -0.2 C from the station mean1956: -2.2 C, -2.2 C from the station mean1957: -0.7 C, -0.7 C from the station mean1958: -1.5 C, -1.5 C from the station mean1959: -1.3 C, -1.3 C from the station mean1960: -1.6 C, -1.5 C from the station mean1963: -0.1 C, 0.0 C from the station mean1964: -0.3 C, -0.3 C from the station mean1965: 0.7 C, +0.7 C from the station mean1966: -0.7 C, -0.7 C from the station mean1967: -1.8 C, -1.7 C from the station mean1969: -2.3 C, -2.2 C from the station mean1970: -0.6 C, -0.6 C from the station mean1971: -0.5 C, -0.5 C from the station mean1972: -0.1 C, 0.0 C from the station mean1973: 0.8 C, +0.8 C from the station mean1974: -0.3 C, -0.2 C from the station mean1975: -0.3 C, -0.3 C from the station mean1976: -1.4 C, -1.3 C from the station mean1977: 0.2 C, +0.2 C from the station mean1978: 0.8 C, +0.9 C from the station mean1979: 0.1 C, +0.1 C from the station mean1980: -0.5 C, -0.5 C from the station mean1981: -0.5 C, -0.5 C from the station mean1982: 1.2 C, +1.2 C from the station mean1983: 0.4 C, +0.4 C from the station mean1984: -2.2 C, -2.2 C from the station mean1985: -0.9 C, -0.8 C from the station mean1986: -0.2 C, -0.2 C from the station mean1987: 0.1 C, +0.2 C from the station mean1988: 0.2 C, +0.3 C from the station mean1989: 1.4 C, +1.4 C from the station mean1990: 1.3 C, +1.4 C from the station mean1991: 1.3 C, +1.3 C from the station mean1992: 0.6 C, +0.6 C from the station mean1993: -0.4 C, -0.4 C from the station mean1994: 1.2 C, +1.3 C from the station mean1995: 1.1 C, +1.1 C from the station mean1996: -0.6 C, -0.6 C from the station mean1997: 2.1 C, +2.1 C from the station mean1998: 1.6 C, +1.6 C from the station mean1999: 1.0 C, +1.0 C from the station mean2000: 0.6 C, +0.6 C from the station mean2001: 0.8 C, +0.8 C from the station mean2002: 2.3 C, +2.3 C from the station mean2003: 0.5 C, +0.6 C from the station mean2004: 0.7 C, +0.7 C from the station mean2005: 0.0 C, 0.0 C from the station mean2006: 1.6 C, +1.6 C from the station mean2007: 1.5 C, +1.6 C from the station mean2008: 1.1 C, +1.1 C from the station mean2009: 0.9 C, +0.9 C from the station mean2010: -0.1 C, -0.1 C from the station mean2011: 0.0 C, 0.0 C from the station mean2012: -0.1 C, 0.0 C from the station mean2013: 2.1 C, +2.1 C from the station mean2014: 1.0 C, +1.0 C from the station mean2015: 1.9 C, +1.9 C from the station mean2016: 0.8 C, +0.8 C from the station mean2017: 1.6 C, +1.6 C from the station mean2018: -0.4 C, -0.3 C from the station mean193619401950196019701980199020002010
One stripe for each of 70 complete years at Ust-Koksa, 1936 to 2018. Blue stripes are years cooler than the station's own mean of 0.0 C (31.9 F); red stripes are warmer. The coolest year was 1936, at -2.5 C (27.5 F), and the warmest was 2002, at 2.3 C (36.1 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Ust-Koksa as warming stripes, 1936 to 2018
YearAnnual mean temperatureDifference from the station mean
1936-2.5 C-2.46 C
1939-1.7 C-1.72 C
1941-0.2 C-0.19 C
1944-2.0 C-1.98 C
1948-0.6 C-0.53 C
1950-1.7 C-1.71 C
1951-0.5 C-0.52 C
1952-2.1 C-2.06 C
1954-2.3 C-2.31 C
1955-0.2 C-0.16 C
1956-2.2 C-2.21 C
1957-0.7 C-0.68 C
1958-1.5 C-1.46 C
1959-1.3 C-1.29 C
1960-1.6 C-1.53 C
1963-0.1 C-0.03 C
1964-0.3 C-0.28 C
19650.7 C+0.72 C
1966-0.7 C-0.71 C
1967-1.8 C-1.75 C
1969-2.3 C-2.23 C
1970-0.6 C-0.59 C
1971-0.5 C-0.46 C
1972-0.1 C-0.03 C
19730.8 C+0.78 C
1974-0.3 C-0.25 C
1975-0.3 C-0.27 C
1976-1.4 C-1.35 C
19770.2 C+0.21 C
19780.8 C+0.86 C
19790.1 C+0.10 C
1980-0.5 C-0.51 C
1981-0.5 C-0.49 C
19821.2 C+1.23 C
19830.4 C+0.39 C
1984-2.2 C-2.18 C
1985-0.9 C-0.84 C
1986-0.2 C-0.18 C
19870.1 C+0.16 C
19880.2 C+0.26 C
19891.4 C+1.40 C
19901.3 C+1.37 C
19911.3 C+1.33 C
19920.6 C+0.61 C
1993-0.4 C-0.41 C
19941.2 C+1.27 C
19951.1 C+1.14 C
1996-0.6 C-0.59 C
19972.1 C+2.14 C
19981.6 C+1.63 C
19991.0 C+1.03 C
20000.6 C+0.62 C
20010.8 C+0.82 C
20022.3 C+2.31 C
20030.5 C+0.55 C
20040.7 C+0.71 C
20050.0 C+0.02 C
20061.6 C+1.64 C
20071.5 C+1.56 C
20081.1 C+1.12 C
20090.9 C+0.89 C
2010-0.1 C-0.11 C
20110.0 C+0.03 C
2012-0.1 C-0.05 C
20132.1 C+2.08 C
20141.0 C+1.03 C
20151.9 C+1.91 C
20160.8 C+0.79 C
20171.6 C+1.62 C
2018-0.4 C-0.34 C

The annual mean temperature here has risen by 0.4 C (0.3 to 0.5) per decade over 1936 to 2018. In Fahrenheit: 0.7 F (0.5 to 0.9) per decade. The slope is a straight line fitted to 70 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ust-Koksa
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.4 C (0.3 to 0.5) per decade0.7 F (0.5 to 0.9) per decade1936 to 201870Rise
Mean daily maximum0.4 C (0.3 to 0.5) per decade0.7 F (0.5 to 0.9) per decade1936 to 201870Rise
Mean daily minimum0.4 C (0.3 to 0.5) per decade0.7 F (0.5 to 0.8) per decade1936 to 201870Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1936 to 2025
Yearly extremes at Ust-Koksa: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.5 C (97.7 F)197431.4 C (88.5 F)89
Coldest night (TNn)-48.5 C (-55.3 F)1940-38.4 C (-37.1 F)90
Wettest day (Rx1day)70.3 mm (2.8 in)197327.9 mm (1.1 in)90
Wettest five days (Rx5day)88.9 mm (3.5 in)197346.8 mm (1.8 in)90
Longest dry spell (CDD)78 days198630 days90

Hottest day (TXx)

Hottest day (TXx) at Ust-Koksa by year The hottest day of the year at Ust-Koksa, 1936 to 2025. The record is 36.5 C (97.7 F) in 1974, marked on the chart; the median year is 31.4 C (88.5 F). 2527.53032.53537.519401960198020002020Record: 36.5 C (97.7 F) in 1974
The hottest day of the year at Ust-Koksa, 1936 to 2025. The record is 36.5 C (97.7 F) in 1974, marked on the chart; the median year is 31.4 C (88.5 F).
Hottest day (TXx) at Ust-Koksa by year
YearHottest day (TXx)
193631.2 C (88.2 F)
193729.2 C (84.6 F)
193830.3 C (86.5 F)
193931.4 C (88.5 F)
194032.2 C (90.0 F)
194130.6 C (87.1 F)
194230.8 C (87.4 F)
194330.3 C (86.5 F)
194430.6 C (87.1 F)
194530.4 C (86.7 F)
1946n/a
194728.6 C (83.5 F)
194832.6 C (90.7 F)
194932.6 C (90.7 F)
195030.1 C (86.2 F)
195131.6 C (88.9 F)
195230.5 C (86.9 F)
195333.6 C (92.5 F)
195430.4 C (86.7 F)
195531.3 C (88.3 F)
195628.5 C (83.3 F)
195732.0 C (89.6 F)
195827.5 C (81.5 F)
195930.2 C (86.4 F)
196030.3 C (86.5 F)
196127.4 C (81.3 F)
196233.2 C (91.8 F)
196331.7 C (89.1 F)
196431.7 C (89.1 F)
196534.9 C (94.8 F)
196629.9 C (85.8 F)
196731.4 C (88.5 F)
196834.4 C (93.9 F)
196929.7 C (85.5 F)
197029.4 C (84.9 F)
197131.0 C (87.8 F)
197231.2 C (88.2 F)
197329.1 C (84.4 F)
197436.5 C (97.7 F)
197532.0 C (89.6 F)
197629.5 C (85.1 F)
197731.0 C (87.8 F)
197829.0 C (84.2 F)
197932.4 C (90.3 F)
198031.3 C (88.3 F)
198129.8 C (85.6 F)
198232.0 C (89.6 F)
198333.4 C (92.1 F)
198429.0 C (84.2 F)
198529.1 C (84.4 F)
198630.4 C (86.7 F)
198732.2 C (90.0 F)
198831.1 C (88.0 F)
198933.1 C (91.6 F)
199031.3 C (88.3 F)
199132.6 C (90.7 F)
199235.0 C (95.0 F)
199328.6 C (83.5 F)
199429.1 C (84.4 F)
199531.5 C (88.7 F)
199633.1 C (91.6 F)
199731.8 C (89.2 F)
199834.5 C (94.1 F)
199933.0 C (91.4 F)
200031.5 C (88.7 F)
200131.7 C (89.1 F)
200234.4 C (93.9 F)
200331.2 C (88.2 F)
200433.0 C (91.4 F)
200532.5 C (90.5 F)
200630.4 C (86.7 F)
200731.8 C (89.2 F)
200836.4 C (97.5 F)
200928.4 C (83.1 F)
201032.3 C (90.1 F)
201133.1 C (91.6 F)
201233.6 C (92.5 F)
201329.3 C (84.7 F)
201431.0 C (87.8 F)
201532.0 C (89.6 F)
201631.1 C (88.0 F)
201732.9 C (91.2 F)
201831.6 C (88.9 F)
201931.3 C (88.3 F)
202032.7 C (90.9 F)
202132.8 C (91.0 F)
202233.2 C (91.8 F)
202332.7 C (90.9 F)
202432.4 C (90.3 F)
202533.9 C (93.0 F)

Coldest night (TNn)

Coldest night (TNn) at Ust-Koksa by year The coldest night of the year at Ust-Koksa, 1936 to 2025. The record is -48.5 C (-55.3 F) in 1940, marked on the chart; the median year is -38.4 C (-37.1 F). -50-45-40-35-3019401960198020002020Record: -48.5 C (-55.3 F) in 1940
The coldest night of the year at Ust-Koksa, 1936 to 2025. The record is -48.5 C (-55.3 F) in 1940, marked on the chart; the median year is -38.4 C (-37.1 F).
Coldest night (TNn) at Ust-Koksa by year
YearColdest night (TNn)
1936-45.0 C (-49.0 F)
1937-43.3 C (-45.9 F)
1938-41.6 C (-42.9 F)
1939-41.5 C (-42.7 F)
1940-48.5 C (-55.3 F)
1941-37.7 C (-35.9 F)
1942-40.4 C (-40.7 F)
1943-35.4 C (-31.7 F)
1944-44.6 C (-48.3 F)
1945-39.3 C (-38.7 F)
1946-37.2 C (-35.0 F)
1947-42.3 C (-44.1 F)
1948-43.0 C (-45.4 F)
1949-39.9 C (-39.8 F)
1950-38.5 C (-37.3 F)
1951-43.9 C (-47.0 F)
1952-39.6 C (-39.3 F)
1953-37.8 C (-36.0 F)
1954-43.3 C (-45.9 F)
1955-41.6 C (-42.9 F)
1956-46.1 C (-51.0 F)
1957-42.4 C (-44.3 F)
1958-41.5 C (-42.7 F)
1959-44.1 C (-47.4 F)
1960-43.6 C (-46.5 F)
1961-41.4 C (-42.5 F)
1962-37.0 C (-34.6 F)
1963-36.7 C (-34.1 F)
1964-40.1 C (-40.2 F)
1965-34.9 C (-30.8 F)
1966-46.4 C (-51.5 F)
1967-42.9 C (-45.2 F)
1968-43.4 C (-46.1 F)
1969-45.0 C (-49.0 F)
1970-41.2 C (-42.2 F)
1971-36.2 C (-33.2 F)
1972-37.0 C (-34.6 F)
1973-38.8 C (-37.8 F)
1974-37.0 C (-34.6 F)
1975-37.9 C (-36.2 F)
1976-40.5 C (-40.9 F)
1977-42.7 C (-44.9 F)
1978-36.0 C (-32.8 F)
1979-39.5 C (-39.1 F)
1980-41.1 C (-42.0 F)
1981-43.2 C (-45.8 F)
1982-34.4 C (-29.9 F)
1983-36.9 C (-34.4 F)
1984-42.8 C (-45.0 F)
1985-35.8 C (-32.4 F)
1986-35.0 C (-31.0 F)
1987-41.8 C (-43.2 F)
1988-37.8 C (-36.0 F)
1989-35.5 C (-31.9 F)
1990-36.8 C (-34.2 F)
1991-34.3 C (-29.7 F)
1992-32.1 C (-25.8 F)
1993-38.7 C (-37.7 F)
1994-34.4 C (-29.9 F)
1995-33.0 C (-27.4 F)
1996-39.3 C (-38.7 F)
1997-36.3 C (-33.3 F)
1998-43.3 C (-45.9 F)
1999-36.1 C (-33.0 F)
2000-37.8 C (-36.0 F)
2001-42.1 C (-43.8 F)
2002-38.3 C (-36.9 F)
2003-36.2 C (-33.2 F)
2004-41.3 C (-42.3 F)
2005-44.3 C (-47.7 F)
2006-37.5 C (-35.5 F)
2007-36.3 C (-33.3 F)
2008-37.8 C (-36.0 F)
2009-32.6 C (-26.7 F)
2010-38.2 C (-36.8 F)
2011-41.3 C (-42.3 F)
2012-41.1 C (-42.0 F)
2013-33.6 C (-28.5 F)
2014-34.5 C (-30.1 F)
2015-35.0 C (-31.0 F)
2016-36.7 C (-34.1 F)
2017-32.0 C (-25.6 F)
2018-41.1 C (-42.0 F)
2019-35.2 C (-31.4 F)
2020-32.6 C (-26.7 F)
2021-37.4 C (-35.3 F)
2022-36.8 C (-34.2 F)
2023-36.0 C (-32.8 F)
2024-38.2 C (-36.8 F)
2025-33.0 C (-27.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ust-Koksa by year The wettest day of the year at Ust-Koksa, 1936 to 2025. The record is 70.3 mm (2.8 in) in 1973, marked on the chart; the median year is 27.9 mm (1.1 in). 02040608019401960198020002020Record: 70.3 mm (2.8 in) in 1973
The wettest day of the year at Ust-Koksa, 1936 to 2025. The record is 70.3 mm (2.8 in) in 1973, marked on the chart; the median year is 27.9 mm (1.1 in).
Wettest day (Rx1day) at Ust-Koksa by year
YearWettest day (Rx1day)
193632.4 mm (1.3 in)
193726.9 mm (1.1 in)
193830.8 mm (1.2 in)
193921.8 mm (0.9 in)
194040.5 mm (1.6 in)
194126.9 mm (1.1 in)
194230.6 mm (1.2 in)
194319.8 mm (0.8 in)
194432.3 mm (1.3 in)
194526.2 mm (1.0 in)
194634.4 mm (1.4 in)
194722.7 mm (0.9 in)
194821.9 mm (0.9 in)
194919.6 mm (0.8 in)
195022.9 mm (0.9 in)
195118.2 mm (0.7 in)
195251.8 mm (2.0 in)
195322.5 mm (0.9 in)
195429.7 mm (1.2 in)
195520.2 mm (0.8 in)
195624.4 mm (1.0 in)
195728.5 mm (1.1 in)
195823.6 mm (0.9 in)
195933.2 mm (1.3 in)
196027.8 mm (1.1 in)
196128.8 mm (1.1 in)
196216.6 mm (0.7 in)
196335.1 mm (1.4 in)
196415.6 mm (0.6 in)
196527.2 mm (1.1 in)
196628.7 mm (1.1 in)
196718.0 mm (0.7 in)
196823.3 mm (0.9 in)
196933.1 mm (1.3 in)
197036.3 mm (1.4 in)
197130.2 mm (1.2 in)
197250.1 mm (2.0 in)
197370.3 mm (2.8 in)
197416.7 mm (0.7 in)
197524.1 mm (0.9 in)
197629.6 mm (1.2 in)
197748.7 mm (1.9 in)
197818.9 mm (0.7 in)
197943.7 mm (1.7 in)
198029.1 mm (1.1 in)
198140.2 mm (1.6 in)
198225.7 mm (1.0 in)
198329.9 mm (1.2 in)
198442.7 mm (1.7 in)
198524.4 mm (1.0 in)
198625.4 mm (1.0 in)
198724.4 mm (1.0 in)
198820.4 mm (0.8 in)
198923.5 mm (0.9 in)
199030.7 mm (1.2 in)
199123.4 mm (0.9 in)
199227.3 mm (1.1 in)
199331.4 mm (1.2 in)
199426.8 mm (1.1 in)
199530.8 mm (1.2 in)
199634.6 mm (1.4 in)
199724.4 mm (1.0 in)
199817.8 mm (0.7 in)
199933.8 mm (1.3 in)
200032.2 mm (1.3 in)
200137.0 mm (1.5 in)
200228.1 mm (1.1 in)
200329.4 mm (1.2 in)
200426.5 mm (1.0 in)
200517.2 mm (0.7 in)
200632.0 mm (1.3 in)
200730.5 mm (1.2 in)
200827.9 mm (1.1 in)
200928.8 mm (1.1 in)
201028.1 mm (1.1 in)
201128.6 mm (1.1 in)
201223.4 mm (0.9 in)
201322.8 mm (0.9 in)
201439.1 mm (1.5 in)
201520.1 mm (0.8 in)
201628.3 mm (1.1 in)
201716.0 mm (0.6 in)
201834.6 mm (1.4 in)
201925.2 mm (1.0 in)
202017.0 mm (0.7 in)
202133.0 mm (1.3 in)
202220.3 mm (0.8 in)
202324.9 mm (1.0 in)
202427.9 mm (1.1 in)
202525.9 mm (1.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ust-Koksa by year The wettest five days of the year at Ust-Koksa, 1936 to 2025. The record is 88.9 mm (3.5 in) in 1973, marked on the chart; the median year is 46.8 mm (1.8 in). 2040608010019401960198020002020Record: 88.9 mm (3.5 in) in 1973
The wettest five days of the year at Ust-Koksa, 1936 to 2025. The record is 88.9 mm (3.5 in) in 1973, marked on the chart; the median year is 46.8 mm (1.8 in).
Wettest five days (Rx5day) at Ust-Koksa by year
YearWettest five days (Rx5day)
193663.9 mm (2.5 in)
193776.7 mm (3.0 in)
193866.1 mm (2.6 in)
193954.5 mm (2.1 in)
194054.9 mm (2.2 in)
194158.9 mm (2.3 in)
194240.2 mm (1.6 in)
194337.3 mm (1.5 in)
194446.0 mm (1.8 in)
194533.2 mm (1.3 in)
194672.9 mm (2.9 in)
194746.2 mm (1.8 in)
194843.3 mm (1.7 in)
194926.9 mm (1.1 in)
195053.2 mm (2.1 in)
195139.9 mm (1.6 in)
195286.7 mm (3.4 in)
195356.4 mm (2.2 in)
195459.4 mm (2.3 in)
195538.7 mm (1.5 in)
195644.3 mm (1.7 in)
195744.8 mm (1.8 in)
195849.7 mm (2.0 in)
195944.9 mm (1.8 in)
196060.8 mm (2.4 in)
196149.1 mm (1.9 in)
196229.5 mm (1.2 in)
196336.7 mm (1.4 in)
196430.0 mm (1.2 in)
196546.9 mm (1.8 in)
196653.3 mm (2.1 in)
196741.6 mm (1.6 in)
196842.6 mm (1.7 in)
196959.0 mm (2.3 in)
197063.5 mm (2.5 in)
197156.6 mm (2.2 in)
197253.6 mm (2.1 in)
197388.9 mm (3.5 in)
197422.3 mm (0.9 in)
197537.2 mm (1.5 in)
197647.0 mm (1.9 in)
197769.5 mm (2.7 in)
197846.6 mm (1.8 in)
197957.9 mm (2.3 in)
198039.5 mm (1.6 in)
198162.2 mm (2.4 in)
198242.4 mm (1.7 in)
198348.6 mm (1.9 in)
198476.6 mm (3.0 in)
198554.9 mm (2.2 in)
198649.1 mm (1.9 in)
198759.3 mm (2.3 in)
198862.0 mm (2.4 in)
198941.2 mm (1.6 in)
199051.4 mm (2.0 in)
199134.8 mm (1.4 in)
199245.8 mm (1.8 in)
199369.6 mm (2.7 in)
199445.3 mm (1.8 in)
199542.9 mm (1.7 in)
199654.4 mm (2.1 in)
199747.6 mm (1.9 in)
199832.1 mm (1.3 in)
199964.0 mm (2.5 in)
200066.5 mm (2.6 in)
200169.9 mm (2.8 in)
200238.4 mm (1.5 in)
200333.5 mm (1.3 in)
200461.9 mm (2.4 in)
200534.8 mm (1.4 in)
200650.5 mm (2.0 in)
200760.5 mm (2.4 in)
200840.0 mm (1.6 in)
200945.9 mm (1.8 in)
201044.5 mm (1.8 in)
201142.1 mm (1.7 in)
201244.4 mm (1.7 in)
201366.2 mm (2.6 in)
201461.9 mm (2.4 in)
201538.1 mm (1.5 in)
201649.2 mm (1.9 in)
201737.4 mm (1.5 in)
201838.4 mm (1.5 in)
201944.4 mm (1.7 in)
202033.1 mm (1.3 in)
202145.7 mm (1.8 in)
202242.9 mm (1.7 in)
202344.2 mm (1.7 in)
202437.0 mm (1.5 in)
202549.0 mm (1.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ust-Koksa by year The longest dry spell of the year at Ust-Koksa, 1936 to 2025. The record is 78 days in 1986, marked on the chart; the median year is 30 days. 02040608019401960198020002020Record: 78 days in 1986
The longest dry spell of the year at Ust-Koksa, 1936 to 2025. The record is 78 days in 1986, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Ust-Koksa by year
YearLongest dry spell (CDD)
193640 days
193727 days
193840 days
193974 days
194032 days
194126 days
194228 days
194376 days
194425 days
194527 days
194626 days
194735 days
194825 days
194932 days
195029 days
195145 days
195227 days
195327 days
195425 days
195530 days
195635 days
195718 days
195819 days
195947 days
196030 days
196141 days
196249 days
196323 days
196472 days
196528 days
196630 days
196746 days
196829 days
196936 days
197026 days
197126 days
197232 days
197351 days
197421 days
197547 days
197653 days
197729 days
197825 days
197924 days
198032 days
198134 days
198232 days
198337 days
198442 days
198556 days
198678 days
198738 days
198840 days
198935 days
199022 days
199142 days
199224 days
199323 days
199439 days
199532 days
199638 days
199730 days
199827 days
199922 days
200042 days
200118 days
200224 days
200333 days
200418 days
200531 days
200644 days
200728 days
200828 days
200936 days
201022 days
201124 days
201239 days
201323 days
201426 days
201533 days
201630 days
201741 days
201848 days
201952 days
202026 days
202125 days
202225 days
202319 days
202424 days
202517 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

70 years with a frost

Across 70 years with a frost, the median last spring frost at Ust-Koksa falls on 26 May and the median first autumn frost on 4 September, which leaves a median of 102 days between them.

In 1989 to 2018 the median growing season was 106 days. That is 12 days more than in 1936 to 1978.

Fitted over all years, the growing season changes by +2.4 days per decade at this station.

Frost dates and growing season at Ust-Koksa
MeasureMedian, all yearsEarliest period (1936 to 1978)Recent period (1989 to 2018)Recent against earliestFitted trend
Last spring frost26 May27 May24 May3 days earlier-0.3 days per decade
First autumn frost4 September31 August8 September8 days later+2.1 days per decade
Growing days102 days94 days106 days12 days more+2.4 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

89 years, 1936 to 2024

A day with at least 26.9 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 55.6 mm (2.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Ust-Koksa: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years26.9 mm (1.1 in)
5 years34.3 mm (1.4 in)
10 years39.3 mm (1.5 in)
25 years45.7 mm (1.8 in)
50 years50.6 mm (2.0 in)
100 years55.6 mm (2.2 in)Longer than the 89 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 89 years of values from 1936 to 2024.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 70.3 mm (2.8 in) in 1973; 51.8 mm (2.0 in) in 1952; 50.1 mm (2.0 in) in 1972.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2004 to 2018 against 1961 to 1990

Over 2004 to 2018, Ust-Koksa had a mean temperature of 0.8 C (33.5 F) and 469.2 mm (18.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Kjahta (Russia, 1,474 km away), Irkutsk (Russia, 1,318 km away) and Minusinsk (Russia, 565 km away).

Climate twins of Ust-Koksa: stations whose 1961 to 1990 climate is closest to its 2004 to 2018 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
KjahtaRussia1,474 km (916 mi)0.4 C (32.8 F)342.4 mm (13.5 in)1.42
IrkutskRussia1,318 km (819 mi)0.6 C (33.2 F)462.5 mm (18.2 in)1.46
MinusinskRussia565 km (351 mi)1.6 C (34.9 F)337.8 mm (13.3 in)1.57

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Ust-Koksa standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Ust-Koksa 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). Records are computed by this site and are not official.

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