Built 2026-10-19 (19 October 2026)

Bor Weather Records (RSM00023884)

Record envelope, standing records and threshold days for Bor (RSM00023884), Russia, with 90 years of record.

Key Facts for Bor

  • Bor (RSM00023884) is a weather station in Russia at 61.60 latitude and 90.02 longitude, 62 m (203 ft) above sea level.
  • The station reports from 1936 to 2025, 90 years of record.
  • 1,464 records set at Bor still stand.
  • Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
  • Bor set a daily record low maximum temperature of 11.9 C (53.4 F) on 22 July 2025.

About the Station

  • Location: Russia, 61.60 latitude, 90.02 longitude.
  • Elevation: 62 m (203 ft).
  • Period of record: 1936 to 2025, 90 years.
  • Eligible elements: tmax, tmin, prcp, snwd.

Daily Record Envelope and 2026

2 days at or beyond a record
Daily record high and record low at Bor, with 2026 drawn through them The band shows the record high and record low for each calendar day at Bor. The lines show the 2026 daily maximum and minimum. 2 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 Bor. The lines show the 2026 daily maximum and minimum. 2 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Bor, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan1.6 C (34.9 F)-56.0 C (-68.8 F)-0.9 C (30.4 F)-35.9 C (-32.6 F)
Feb4.4 C (39.9 F)-52.9 C (-63.2 F)-2.8 C (27.0 F)-36.6 C (-33.9 F)
Mar14.5 C (58.1 F)-45.1 C (-49.2 F)10.5 C (50.9 F)-36.0 C (-32.8 F)
Apr24.9 C (76.8 F)-36.6 C (-33.9 F)17.6 C (63.7 F)-18.2 C (-0.8 F)
May33.6 C (92.5 F)-22.5 C (-8.5 F)24.0 C (75.2 F)-3.7 C (25.3 F)
Jun35.0 C (95.0 F)-7.0 C (19.4 F)33.0 C (91.4 F)3.0 C (37.4 F)
Jul36.1 C (97.0 F)0.7 C (33.3 F)32.4 C (90.3 F)6.2 C (43.2 F)
Aug33.5 C (92.3 F)-3.7 C (25.3 F)26.9 C (80.4 F)5.8 C (42.4 F)
Sep29.4 C (84.9 F)-11.8 C (10.8 F)n/an/a
Oct21.6 C (70.9 F)-32.4 C (-26.3 F)n/an/a
Nov7.2 C (45.0 F)-52.7 C (-62.9 F)n/an/a
Dec3.6 C (38.5 F)-54.3 C (-65.7 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Bor by the year they were set 1,464 records at Bor still stand. 1984 holds the most, with 38. 0102030401936: 21937: 201938: 211939: 211940: 171941: 51942: 81943: 91944: 111945: 141946: 181947: 141948: 121949: 91950: 221951: 171952: 261953: 121954: 201955: 101956: 101957: 171958: 11959: 191960: 101961: 71962: 161963: 131964: 281965: 131966: 281967: 341968: 161969: 171970: 141971: 131972: 121973: 161974: 271975: 121976: 201977: 141978: 191979: 211980: 51981: 241982: 201983: 181984: 381985: 71986: 191987: 351988: 121989: 221990: 141991: 201992: 221993: 121994: 131995: 211996: 151997: 191998: 261999: 362000: 112001: 232002: 222003: 182004: 172005: 152006: 222007: 162008: 112009: 122010: 102011: 192012: 132013: 122014: 242015: 152016: 132017: 102018: 232019: 132020: 172021: 92022: 42023: 152024: 52025: 121936194519541963197219811990199920082017
1,464 records at Bor still stand. 1984 holds the most, with 38.
Standing records at Bor by the year they were set
Year setStanding records
19362
193720
193821
193921
194017
19415
19428
19439
194411
194514
194618
194714
194812
19499
195022
195117
195226
195312
195420
195510
195610
195717
19581
195919
196010
19617
196216
196313
196428
196513
196628
196734
196816
196917
197014
197113
197212
197316
197427
197512
197620
197714
197819
197921
19805
198124
198220
198318
198438
19857
198619
198735
198812
198922
199014
199120
199222
199312
199413
199521
199615
199719
199826
199936
200011
200123
200222
200318
200417
200515
200622
200716
200811
200912
201010
201119
201213
201312
201424
201515
201613
201710
201823
201913
202017
20219
20224
202315
20245
202512

All-Time Record Progression

11 new records
When Bor set new all-time records 11 all-time records were set at Bor between 25 July 1968 and 31 July 2008. Each dot is a new record. Record daily precipitationRecord low minimum temperatureRecord low maximum temperatureRecord high maximum temperature25 July 1968: Record daily precipitation 56.3 mm (2.2 in)10 February 1969: Record low minimum temperature -52.9 C (-63.2 F)8 December 1972: Record low minimum temperature -53.7 C (-64.7 F)9 December 1972: Record low maximum temperature -48.7 C (-55.7 F)9 December 1972: Record low minimum temperature -54.3 C (-65.7 F)10 December 1984: Record low maximum temperature -50.2 C (-58.4 F)6 January 1987: Record low maximum temperature -52.4 C (-62.3 F)6 January 1987: Record low minimum temperature -56.0 C (-68.8 F)14 July 1999: Record high maximum temperature 36.0 C (96.8 F)15 July 1999: Record high maximum temperature 36.1 C (97.0 F)31 July 2008: Record daily precipitation 61.7 mm (2.4 in)1970198019902000
11 all-time records were set at Bor between 25 July 1968 and 31 July 2008. Each dot is a new record.
When Bor set new all-time records
DateKindDetail
1968-07-25Record daily precipitationRecord daily precipitation 56.3 mm (2.2 in)
1969-02-10Record low minimum temperatureRecord low minimum temperature -52.9 C (-63.2 F)
1972-12-08Record low minimum temperatureRecord low minimum temperature -53.7 C (-64.7 F)
1972-12-09Record low maximum temperatureRecord low maximum temperature -48.7 C (-55.7 F)
1972-12-09Record low minimum temperatureRecord low minimum temperature -54.3 C (-65.7 F)
1984-12-10Record low maximum temperatureRecord low maximum temperature -50.2 C (-58.4 F)
1987-01-06Record low maximum temperatureRecord low maximum temperature -52.4 C (-62.3 F)
1987-01-06Record low minimum temperatureRecord low minimum temperature -56.0 C (-68.8 F)
1999-07-14Record high maximum temperatureRecord high maximum temperature 36.0 C (96.8 F)
1999-07-15Record high maximum temperatureRecord high maximum temperature 36.1 C (97.0 F)
2008-07-31Record daily precipitationRecord daily precipitation 61.7 mm (2.4 in)

Wettest Day of Each Month

Jul: 61.7 mm (2.4 in)
Record daily precipitation for each month at Bor The wettest day on record for each calendar month at Bor. The most was 61.7 mm (2.4 in) on 31 July 2008. 020406080 Jan: 13.7 mm (0.5 in), 24 January 2013 Jan Feb: 11.9 mm (0.5 in), 9 February 2021 Feb Mar: 13.0 mm (0.5 in), 26 March 2016 Mar Apr: 34.6 mm (1.4 in), 27 April 1956 Apr May: 27.9 mm (1.1 in), 13 May 2020 May Jun: 40.3 mm (1.6 in), 27 June 1948 Jun Jul: 61.7 mm (2.4 in), 31 July 2008 Jul Aug: 40.8 mm (1.6 in), 10 August 1985 Aug Sep: 38.0 mm (1.5 in), 14 September 2006 Sep Oct: 31.9 mm (1.3 in), 1 October 1949 Oct Nov: 18.5 mm (0.7 in), 2 November 1963 Nov Dec: 14.8 mm (0.6 in), 29 December 1975 Dec
The wettest day on record for each calendar month at Bor. The most was 61.7 mm (2.4 in) on 31 July 2008.
Record daily precipitation for each month at Bor
MonthRecord daily precipitation (mm)Date
Jan13.7 mm (0.5 in)24 January 2013
Feb11.9 mm (0.5 in)9 February 2021
Mar13.0 mm (0.5 in)26 March 2016
Apr34.6 mm (1.4 in)27 April 1956
May27.9 mm (1.1 in)13 May 2020
Jun40.3 mm (1.6 in)27 June 1948
Jul61.7 mm (2.4 in)31 July 2008
Aug40.8 mm (1.6 in)10 August 1985
Sep38.0 mm (1.5 in)14 September 2006
Oct31.9 mm (1.3 in)1 October 1949
Nov18.5 mm (0.7 in)2 November 1963
Dec14.8 mm (0.6 in)29 December 1975

Period of Record Coverage

1937 to 2025
Days with data per year at Bor 89 years of record at Bor, 1937 to 2025. 11 years have data for under 90 percent of days and are left out of rankings: 1937, 1940, 1947, 1958, 2019, 2020, 2021, 2022 and others. 1937: 160 of 365 days1938: 348 of 365 days1939: 365 of 365 days1940: 319 of 366 days1941: 364 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 334 of 365 days1947: 262 of 365 days1948: 347 of 366 days1949: 343 of 365 days1950: 365 of 365 days1951: 364 of 365 days1952: 354 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 15 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 363 of 365 days1967: 364 of 365 days1968: 365 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 363 of 365 days1972: 365 of 366 days1973: 364 of 365 days1974: 362 of 365 days1975: 365 of 365 days1976: 365 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: 312 of 365 days2020: 302 of 366 days2021: 280 of 365 days2022: 304 of 365 days2023: 302 of 365 days2024: 288 of 366 days2025: 205 of 365 days195019651980199520102025
89 years of record at Bor, 1937 to 2025. 11 years have data for under 90 percent of days and are left out of rankings: 1937, 1940, 1947, 1958, 2019, 2020, 2021, 2022 and others.
Days with data per year at Bor
YearDays with dataShare of yearComplete
193716044%No
193834895%Yes
1939365100%Yes
194031987%No
1941364100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
194633492%Yes
194726272%No
194834795%Yes
194934394%Yes
1950365100%Yes
1951364100%Yes
195235497%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958154%No
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
196636399%Yes
1967364100%Yes
1968365100%Yes
1969365100%Yes
1970365100%Yes
197136399%Yes
1972365100%Yes
1973364100%Yes
197436299%Yes
1975365100%Yes
1976365100%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
201931285%No
202030283%No
202128077%No
202230483%No
202330283%No
202428879%No
202520556%No

Latest Records

20
Latest records at Bor
DateStationRecordValueBeat old record byOld record stoodSignificance
22 July 2025Bor, RUdaily low max11.9 C (53.4 F)2.2 C (4.0 F)36 years23 of 100 (Routine)
21 July 2025Bor, RUdaily low max13.1 C (55.6 F)2.0 C (3.6 F)78 years35 of 100 (Notable)
20 July 2025Bor, RUdaily rain19.1 mm (0.8 in)0.6 mm (0.02 in)52 years20 of 100 (Routine)
20 June 2025Bor, RUdaily high max33.0 C (91.4 F)0.4 C (0.7 F)8 years10 of 100 (Routine)
27 May 2025Bor, RUdaily low max3.8 C (38.8 F)1.8 C (3.2 F)46 years23 of 100 (Routine)
26 May 2025Bor, RUdaily low max3.8 C (38.8 F)0.2 C (0.4 F)86 years33 of 100 (Routine)
4 April 2025Bor, RUdaily rain13.7 mm (0.5 in)8.1 mm (0.32 in)56 years20 of 100 (Routine)
31 March 2025Bor, RUdaily high min0.5 C (32.9 F)0.1 C (0.2 F)8 years11 of 100 (Routine)
30 March 2025Bor, RUdaily high min1.7 C (35.1 F)1.1 C (2.0 F)8 years12 of 100 (Routine)
29 March 2025Bor, RUdaily high min0.5 C (32.9 F)0.1 C (0.2 F)39 years20 of 100 (Routine)
18 March 2025Bor, RUdaily high min-1.0 C (30.2 F)0.3 C (0.5 F)84 years34 of 100 (Routine)
17 March 2025Bor, RUdaily high min-1.1 C (30.0 F)1.2 C (2.2 F)58 years27 of 100 (Routine)
26 February 2025Bor, RUdaily rain6.1 mm (0.24 in)1.4 mm (0.06 in)50 years20 of 100 (Routine)
25 February 2025Bor, RUdaily rain9.9 mm (0.39 in)2.6 mm (0.10 in)9 years20 of 100 (Routine)
11 February 2025Bor, RUdaily rain7.9 mm (0.31 in)0.3 mm (0.01 in)19 years15 of 100 (Routine)
22 January 2025Bor, RUdaily high max-1.6 C (29.1 F)0.6 C (1.1 F)42 years20 of 100 (Routine)
16 January 2025Bor, RUdaily high min-9.5 C (14.9 F)0.6 C (1.1 F)32 years18 of 100 (Routine)
14 January 2025Bor, RUdaily rain7.9 mm (0.31 in)2.8 mm (0.11 in)1 year20 of 100 (Routine)
16 December 2024Bor, RUdaily rain10.9 mm (0.4 in)3.0 mm (0.12 in)37 years20 of 100 (Routine)
28 November 2024Bor, RUdaily high max0.3 C (32.5 F)0.4 C (0.7 F)16 years12 of 100 (Routine)

Climate Trend

73 complete years, 1939 to 2018
Annual mean temperature at Bor as warming stripes, 1939 to 2018 One stripe for each of 73 complete years at Bor, 1939 to 2018. Blue stripes are years cooler than the station's own mean of -3.1 C (26.4 F); red stripes are warmer. The coolest year was 1966, at -6.3 C (20.7 F), and the warmest was 2015, at -0.2 C (31.6 F). The strongest colour marks a difference of 3.2 C (5.8 F). 1939: -2.2 C, +0.9 C from the station mean1941: -4.3 C, -1.2 C from the station mean1942: -3.3 C, -0.1 C from the station mean1943: -2.1 C, +1.0 C from the station mean1944: -2.1 C, +1.1 C from the station mean1945: -3.3 C, -0.1 C from the station mean1950: -3.5 C, -0.4 C from the station mean1951: -3.9 C, -0.7 C from the station mean1953: -2.9 C, +0.2 C from the station mean1954: -4.3 C, -1.2 C from the station mean1955: -3.5 C, -0.4 C from the station mean1956: -3.7 C, -0.6 C from the station mean1957: -3.8 C, -0.7 C from the station mean1959: -4.2 C, -1.0 C from the station mean1960: -5.3 C, -2.2 C from the station mean1961: -3.8 C, -0.6 C from the station mean1962: -1.9 C, +1.2 C from the station mean1963: -2.5 C, +0.6 C from the station mean1964: -3.7 C, -0.5 C from the station mean1965: -3.9 C, -0.8 C from the station mean1966: -6.3 C, -3.1 C from the station mean1967: -1.8 C, +1.3 C from the station mean1968: -5.0 C, -1.9 C from the station mean1969: -5.8 C, -2.6 C from the station mean1970: -4.4 C, -1.3 C from the station mean1971: -3.1 C, 0.0 C from the station mean1972: -5.0 C, -1.9 C from the station mean1973: -1.7 C, +1.4 C from the station mean1974: -6.2 C, -3.1 C from the station mean1975: -2.0 C, +1.1 C from the station mean1976: -3.9 C, -0.8 C from the station mean1977: -4.3 C, -1.2 C from the station mean1978: -2.0 C, +1.2 C from the station mean1979: -4.7 C, -1.6 C from the station mean1980: -3.9 C, -0.8 C from the station mean1981: -2.3 C, +0.8 C from the station mean1982: -3.0 C, +0.1 C from the station mean1983: -1.5 C, +1.6 C from the station mean1984: -4.9 C, -1.8 C from the station mean1985: -3.9 C, -0.8 C from the station mean1986: -2.4 C, +0.7 C from the station mean1987: -4.9 C, -1.8 C from the station mean1988: -2.8 C, +0.4 C from the station mean1989: -2.0 C, +1.1 C from the station mean1990: -2.4 C, +0.7 C from the station mean1991: -3.2 C, -0.1 C from the station mean1992: -2.7 C, +0.4 C from the station mean1993: -1.9 C, +1.2 C from the station mean1994: -3.6 C, -0.5 C from the station mean1995: -0.4 C, +2.7 C from the station mean1996: -4.4 C, -1.2 C from the station mean1997: -2.2 C, +0.9 C from the station mean1998: -3.9 C, -0.7 C from the station mean1999: -3.4 C, -0.3 C from the station mean2000: -4.2 C, -1.0 C from the station mean2001: -3.0 C, +0.1 C from the station mean2002: -2.4 C, +0.7 C from the station mean2003: -1.8 C, +1.3 C from the station mean2004: -2.8 C, +0.4 C from the station mean2005: -1.2 C, +1.9 C from the station mean2006: -4.0 C, -0.9 C from the station mean2007: -0.9 C, +2.3 C from the station mean2008: -1.9 C, +1.2 C from the station mean2009: -4.2 C, -1.1 C from the station mean2010: -4.6 C, -1.5 C from the station mean2011: -0.7 C, +2.4 C from the station mean2012: -2.6 C, +0.5 C from the station mean2013: -1.7 C, +1.4 C from the station mean2014: -2.7 C, +0.4 C from the station mean2015: -0.2 C, +2.9 C from the station mean2016: -1.4 C, +1.7 C from the station mean2017: -0.7 C, +2.4 C from the station mean2018: -2.8 C, +0.3 C from the station mean19391950196019701980199020002010
One stripe for each of 73 complete years at Bor, 1939 to 2018. Blue stripes are years cooler than the station's own mean of -3.1 C (26.4 F); red stripes are warmer. The coolest year was 1966, at -6.3 C (20.7 F), and the warmest was 2015, at -0.2 C (31.6 F). The strongest colour marks a difference of 3.2 C (5.8 F).
Annual mean temperature at Bor as warming stripes, 1939 to 2018
YearAnnual mean temperatureDifference from the station mean
1939-2.2 C+0.92 C
1941-4.3 C-1.23 C
1942-3.3 C-0.15 C
1943-2.1 C+1.01 C
1944-2.1 C+1.06 C
1945-3.3 C-0.15 C
1950-3.5 C-0.36 C
1951-3.9 C-0.75 C
1953-2.9 C+0.24 C
1954-4.3 C-1.20 C
1955-3.5 C-0.39 C
1956-3.7 C-0.59 C
1957-3.8 C-0.71 C
1959-4.2 C-1.04 C
1960-5.3 C-2.20 C
1961-3.8 C-0.65 C
1962-1.9 C+1.23 C
1963-2.5 C+0.62 C
1964-3.7 C-0.54 C
1965-3.9 C-0.76 C
1966-6.3 C-3.14 C
1967-1.8 C+1.34 C
1968-5.0 C-1.89 C
1969-5.8 C-2.64 C
1970-4.4 C-1.30 C
1971-3.1 C-0.02 C
1972-5.0 C-1.88 C
1973-1.7 C+1.38 C
1974-6.2 C-3.07 C
1975-2.0 C+1.11 C
1976-3.9 C-0.77 C
1977-4.3 C-1.16 C
1978-2.0 C+1.15 C
1979-4.7 C-1.63 C
1980-3.9 C-0.77 C
1981-2.3 C+0.84 C
1982-3.0 C+0.14 C
1983-1.5 C+1.59 C
1984-4.9 C-1.81 C
1985-3.9 C-0.79 C
1986-2.4 C+0.74 C
1987-4.9 C-1.81 C
1988-2.8 C+0.35 C
1989-2.0 C+1.14 C
1990-2.4 C+0.70 C
1991-3.2 C-0.07 C
1992-2.7 C+0.41 C
1993-1.9 C+1.17 C
1994-3.6 C-0.46 C
1995-0.4 C+2.68 C
1996-4.4 C-1.25 C
1997-2.2 C+0.87 C
1998-3.9 C-0.75 C
1999-3.4 C-0.28 C
2000-4.2 C-1.05 C
2001-3.0 C+0.07 C
2002-2.4 C+0.73 C
2003-1.8 C+1.33 C
2004-2.8 C+0.35 C
2005-1.2 C+1.88 C
2006-4.0 C-0.92 C
2007-0.9 C+2.26 C
2008-1.9 C+1.21 C
2009-4.2 C-1.12 C
2010-4.6 C-1.48 C
2011-0.7 C+2.40 C
2012-2.6 C+0.48 C
2013-1.7 C+1.38 C
2014-2.7 C+0.43 C
2015-0.2 C+2.87 C
2016-1.4 C+1.68 C
2017-0.7 C+2.43 C
2018-2.8 C+0.30 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1939 to 2018. In Fahrenheit: 0.4 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 73 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Bor
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.4 F (0.1 to 0.6) per decade1939 to 201873Rise
Mean daily maximum0.2 C (0.1 to 0.3) per decade0.4 F (0.1 to 0.6) per decade1939 to 201873Rise
Mean daily minimum0.2 C (0.1 to 0.4) per decade0.4 F (0.1 to 0.7) per decade1939 to 201873Rise

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 Bor: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.1 C (97.0 F)199932.6 C (90.7 F)89
Coldest night (TNn)-56.0 C (-68.8 F)1987-47.6 C (-53.7 F)90
Wettest day (Rx1day)61.7 mm (2.4 in)200825.3 mm (1.0 in)90
Wettest five days (Rx5day)102.8 mm (4.0 in)200843.1 mm (1.7 in)89
Longest dry spell (CDD)50 days194518 days90

Hottest day (TXx)

Hottest day (TXx) at Bor by year The hottest day of the year at Bor, 1936 to 2025. The record is 36.1 C (97.0 F) in 1999, marked on the chart; the median year is 32.6 C (90.7 F). 202530354019401960198020002020Record: 36.1 C (97.0 F) in 1999
The hottest day of the year at Bor, 1936 to 2025. The record is 36.1 C (97.0 F) in 1999, marked on the chart; the median year is 32.6 C (90.7 F).
Hottest day (TXx) at Bor by year
YearHottest day (TXx)
1936n/a
193722.4 C (72.3 F)
193831.3 C (88.3 F)
193932.0 C (89.6 F)
194029.6 C (85.3 F)
194129.1 C (84.4 F)
194233.8 C (92.8 F)
194329.8 C (85.6 F)
194431.4 C (88.5 F)
194530.1 C (86.2 F)
194630.0 C (86.0 F)
194729.6 C (85.3 F)
194833.1 C (91.6 F)
194929.6 C (85.3 F)
195031.1 C (88.0 F)
195130.7 C (87.3 F)
195230.8 C (87.4 F)
195330.9 C (87.6 F)
195432.2 C (90.0 F)
195532.7 C (90.9 F)
195631.9 C (89.4 F)
195733.3 C (91.9 F)
195823.9 C (75.0 F)
195932.8 C (91.0 F)
196028.2 C (82.8 F)
196131.8 C (89.2 F)
196232.4 C (90.3 F)
196333.5 C (92.3 F)
196435.1 C (95.2 F)
196533.3 C (91.9 F)
196630.5 C (86.9 F)
196734.6 C (94.3 F)
196835.6 C (96.1 F)
196934.5 C (94.1 F)
197032.5 C (90.5 F)
197133.0 C (91.4 F)
197231.9 C (89.4 F)
197332.4 C (90.3 F)
197431.2 C (88.2 F)
197534.7 C (94.5 F)
197633.5 C (92.3 F)
197733.7 C (92.7 F)
197832.1 C (89.8 F)
197933.9 C (93.0 F)
198030.9 C (87.6 F)
198131.2 C (88.2 F)
198232.1 C (89.8 F)
198335.0 C (95.0 F)
198434.8 C (94.6 F)
198531.0 C (87.8 F)
198632.6 C (90.7 F)
198732.0 C (89.6 F)
198829.3 C (84.7 F)
198932.5 C (90.5 F)
199034.0 C (93.2 F)
199134.5 C (94.1 F)
199231.2 C (88.2 F)
199333.9 C (93.0 F)
199433.4 C (92.1 F)
199530.0 C (86.0 F)
199635.1 C (95.2 F)
199731.5 C (88.7 F)
199832.6 C (90.7 F)
199936.1 C (97.0 F)
200033.5 C (92.3 F)
200133.0 C (91.4 F)
200233.1 C (91.6 F)
200333.5 C (92.3 F)
200433.1 C (91.6 F)
200533.9 C (93.0 F)
200634.1 C (93.4 F)
200734.0 C (93.2 F)
200829.7 C (85.5 F)
200932.5 C (90.5 F)
201030.1 C (86.2 F)
201131.4 C (88.5 F)
201234.2 C (93.6 F)
201334.5 C (94.1 F)
201434.0 C (93.2 F)
201532.8 C (91.0 F)
201634.6 C (94.3 F)
201733.6 C (92.5 F)
201833.7 C (92.7 F)
201934.5 C (94.1 F)
202033.1 C (91.6 F)
202133.5 C (92.3 F)
202230.5 C (86.9 F)
202331.9 C (89.4 F)
202434.3 C (93.7 F)
202533.0 C (91.4 F)

Coldest night (TNn)

Coldest night (TNn) at Bor by year The coldest night of the year at Bor, 1936 to 2025. The record is -56.0 C (-68.8 F) in 1987, marked on the chart; the median year is -47.6 C (-53.7 F). -60-50-40-3019401960198020002020Record: -56.0 C (-68.8 F) in 1987
The coldest night of the year at Bor, 1936 to 2025. The record is -56.0 C (-68.8 F) in 1987, marked on the chart; the median year is -47.6 C (-53.7 F).
Coldest night (TNn) at Bor by year
YearColdest night (TNn)
1936-40.8 C (-41.4 F)
1937-46.3 C (-51.3 F)
1938-46.3 C (-51.3 F)
1939-47.1 C (-52.8 F)
1940-47.4 C (-53.3 F)
1941-46.3 C (-51.3 F)
1942-42.9 C (-45.2 F)
1943-45.4 C (-49.7 F)
1944-39.8 C (-39.6 F)
1945-49.7 C (-57.5 F)
1946-49.8 C (-57.6 F)
1947-52.5 C (-62.5 F)
1948-48.0 C (-54.4 F)
1949-49.4 C (-56.9 F)
1950-46.9 C (-52.4 F)
1951-48.0 C (-54.4 F)
1952-48.9 C (-56.0 F)
1953-41.1 C (-42.0 F)
1954-47.7 C (-53.9 F)
1955-48.8 C (-55.8 F)
1956-46.0 C (-50.8 F)
1957-47.8 C (-54.0 F)
1958-33.9 C (-29.0 F)
1959-49.3 C (-56.7 F)
1960-48.4 C (-55.1 F)
1961-51.8 C (-61.2 F)
1962-47.0 C (-52.6 F)
1963-46.8 C (-52.2 F)
1964-42.7 C (-44.9 F)
1965-49.1 C (-56.4 F)
1966-50.5 C (-58.9 F)
1967-49.4 C (-56.9 F)
1968-49.9 C (-57.8 F)
1969-52.9 C (-63.2 F)
1970-48.9 C (-56.0 F)
1971-45.0 C (-49.0 F)
1972-54.3 C (-65.7 F)
1973-47.8 C (-54.0 F)
1974-50.8 C (-59.4 F)
1975-44.0 C (-47.2 F)
1976-52.2 C (-62.0 F)
1977-47.6 C (-53.7 F)
1978-48.1 C (-54.6 F)
1979-52.4 C (-62.3 F)
1980-47.1 C (-52.8 F)
1981-43.4 C (-46.1 F)
1982-50.3 C (-58.5 F)
1983-44.7 C (-48.5 F)
1984-53.6 C (-64.5 F)
1985-46.7 C (-52.1 F)
1986-51.3 C (-60.3 F)
1987-56.0 C (-68.8 F)
1988-46.1 C (-51.0 F)
1989-43.1 C (-45.6 F)
1990-48.6 C (-55.5 F)
1991-48.5 C (-55.3 F)
1992-40.4 C (-40.7 F)
1993-43.0 C (-45.4 F)
1994-51.7 C (-61.1 F)
1995-41.0 C (-41.8 F)
1996-49.2 C (-56.6 F)
1997-48.5 C (-55.3 F)
1998-43.5 C (-46.3 F)
1999-52.2 C (-62.0 F)
2000-50.0 C (-58.0 F)
2001-52.4 C (-62.3 F)
2002-47.7 C (-53.9 F)
2003-44.2 C (-47.6 F)
2004-44.8 C (-48.6 F)
2005-40.4 C (-40.7 F)
2006-52.0 C (-61.6 F)
2007-43.8 C (-46.8 F)
2008-46.9 C (-52.4 F)
2009-49.1 C (-56.4 F)
2010-45.5 C (-49.9 F)
2011-38.4 C (-37.1 F)
2012-42.3 C (-44.1 F)
2013-46.8 C (-52.2 F)
2014-49.2 C (-56.6 F)
2015-44.7 C (-48.5 F)
2016-49.0 C (-56.2 F)
2017-43.9 C (-47.0 F)
2018-51.5 C (-60.7 F)
2019-47.6 C (-53.7 F)
2020-46.4 C (-51.5 F)
2021-49.0 C (-56.2 F)
2022-40.0 C (-40.0 F)
2023-44.2 C (-47.6 F)
2024-39.4 C (-38.9 F)
2025-36.6 C (-33.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Bor by year The wettest day of the year at Bor, 1936 to 2025. The record is 61.7 mm (2.4 in) in 2008, marked on the chart; the median year is 25.3 mm (1.0 in). 02040608019401960198020002020Record: 61.7 mm (2.4 in) in 2008
The wettest day of the year at Bor, 1936 to 2025. The record is 61.7 mm (2.4 in) in 2008, marked on the chart; the median year is 25.3 mm (1.0 in).
Wettest day (Rx1day) at Bor by year
YearWettest day (Rx1day)
193623.5 mm (0.9 in)
193720.7 mm (0.8 in)
193812.2 mm (0.5 in)
193917.6 mm (0.7 in)
194024.8 mm (1.0 in)
194128.6 mm (1.1 in)
194219.6 mm (0.8 in)
194329.8 mm (1.2 in)
194421.1 mm (0.8 in)
194525.8 mm (1.0 in)
194637.1 mm (1.5 in)
194719.5 mm (0.8 in)
194840.3 mm (1.6 in)
194952.5 mm (2.1 in)
195021.9 mm (0.9 in)
195124.6 mm (1.0 in)
195216.7 mm (0.7 in)
195338.2 mm (1.5 in)
195415.3 mm (0.6 in)
195519.3 mm (0.8 in)
195634.6 mm (1.4 in)
195731.1 mm (1.2 in)
19583.6 mm (0.14 in)
195925.4 mm (1.0 in)
196024.0 mm (0.9 in)
196125.2 mm (1.0 in)
196225.0 mm (1.0 in)
196318.8 mm (0.7 in)
196428.6 mm (1.1 in)
196526.4 mm (1.0 in)
196617.8 mm (0.7 in)
196719.4 mm (0.8 in)
196856.3 mm (2.2 in)
196928.6 mm (1.1 in)
197034.2 mm (1.3 in)
197119.1 mm (0.8 in)
197225.5 mm (1.0 in)
197335.0 mm (1.4 in)
197431.8 mm (1.3 in)
197530.0 mm (1.2 in)
197623.5 mm (0.9 in)
197718.7 mm (0.7 in)
197821.8 mm (0.9 in)
197924.6 mm (1.0 in)
198036.8 mm (1.4 in)
198127.6 mm (1.1 in)
198239.1 mm (1.5 in)
198326.6 mm (1.0 in)
198429.4 mm (1.2 in)
198540.8 mm (1.6 in)
198634.1 mm (1.3 in)
198735.8 mm (1.4 in)
198824.4 mm (1.0 in)
198913.3 mm (0.5 in)
199033.7 mm (1.3 in)
199124.3 mm (1.0 in)
199222.8 mm (0.9 in)
199318.1 mm (0.7 in)
199443.8 mm (1.7 in)
199521.4 mm (0.8 in)
199619.4 mm (0.8 in)
199724.7 mm (1.0 in)
199832.3 mm (1.3 in)
199928.3 mm (1.1 in)
200020.4 mm (0.8 in)
200120.0 mm (0.8 in)
200228.7 mm (1.1 in)
200327.6 mm (1.1 in)
200425.6 mm (1.0 in)
200536.2 mm (1.4 in)
200638.0 mm (1.5 in)
200728.7 mm (1.1 in)
200861.7 mm (2.4 in)
200935.5 mm (1.4 in)
201026.6 mm (1.0 in)
201130.0 mm (1.2 in)
201224.8 mm (1.0 in)
201330.7 mm (1.2 in)
201422.3 mm (0.9 in)
201539.3 mm (1.5 in)
201616.3 mm (0.6 in)
201723.2 mm (0.9 in)
201824.3 mm (1.0 in)
201924.0 mm (0.9 in)
202027.9 mm (1.1 in)
202124.9 mm (1.0 in)
202219.1 mm (0.8 in)
202322.1 mm (0.9 in)
202416.5 mm (0.6 in)
202527.9 mm (1.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Bor by year The wettest five days of the year at Bor, 1936 to 2025. The record is 102.8 mm (4.0 in) in 2008, marked on the chart; the median year is 43.1 mm (1.7 in). 025507510012519401960198020002020Record: 102.8 mm (4.0 in) in 2008
The wettest five days of the year at Bor, 1936 to 2025. The record is 102.8 mm (4.0 in) in 2008, marked on the chart; the median year is 43.1 mm (1.7 in).
Wettest five days (Rx5day) at Bor by year
YearWettest five days (Rx5day)
193646.4 mm (1.8 in)
193734.9 mm (1.4 in)
193822.3 mm (0.9 in)
193933.3 mm (1.3 in)
194049.4 mm (1.9 in)
194147.9 mm (1.9 in)
194248.4 mm (1.9 in)
194337.7 mm (1.5 in)
194430.6 mm (1.2 in)
194552.0 mm (2.0 in)
194665.4 mm (2.6 in)
194743.1 mm (1.7 in)
194861.1 mm (2.4 in)
194971.7 mm (2.8 in)
195042.9 mm (1.7 in)
195148.3 mm (1.9 in)
195230.5 mm (1.2 in)
195376.3 mm (3.0 in)
195434.8 mm (1.4 in)
195538.7 mm (1.5 in)
195651.4 mm (2.0 in)
195738.1 mm (1.5 in)
1958n/a
195930.1 mm (1.2 in)
196033.0 mm (1.3 in)
196134.1 mm (1.3 in)
196238.9 mm (1.5 in)
196338.1 mm (1.5 in)
196448.9 mm (1.9 in)
196543.1 mm (1.7 in)
196646.2 mm (1.8 in)
196743.1 mm (1.7 in)
196858.1 mm (2.3 in)
196974.6 mm (2.9 in)
197059.7 mm (2.4 in)
197134.9 mm (1.4 in)
197238.8 mm (1.5 in)
197358.5 mm (2.3 in)
197451.1 mm (2.0 in)
197550.3 mm (2.0 in)
197635.2 mm (1.4 in)
197739.7 mm (1.6 in)
197838.7 mm (1.5 in)
197937.7 mm (1.5 in)
198057.1 mm (2.2 in)
198131.7 mm (1.2 in)
198271.7 mm (2.8 in)
198338.5 mm (1.5 in)
198443.0 mm (1.7 in)
198560.4 mm (2.4 in)
198656.0 mm (2.2 in)
198742.1 mm (1.7 in)
198867.9 mm (2.7 in)
198937.2 mm (1.5 in)
199047.9 mm (1.9 in)
199139.9 mm (1.6 in)
199252.0 mm (2.0 in)
199346.8 mm (1.8 in)
199467.5 mm (2.7 in)
199544.2 mm (1.7 in)
199641.2 mm (1.6 in)
199740.1 mm (1.6 in)
199866.9 mm (2.6 in)
199937.9 mm (1.5 in)
200042.1 mm (1.7 in)
200139.1 mm (1.5 in)
200240.9 mm (1.6 in)
200332.5 mm (1.3 in)
200445.0 mm (1.8 in)
200574.1 mm (2.9 in)
200648.1 mm (1.9 in)
200773.3 mm (2.9 in)
2008102.8 mm (4.0 in)
200946.8 mm (1.8 in)
201046.2 mm (1.8 in)
201143.3 mm (1.7 in)
201230.9 mm (1.2 in)
201350.6 mm (2.0 in)
201441.7 mm (1.6 in)
201563.4 mm (2.5 in)
201625.7 mm (1.0 in)
201742.9 mm (1.7 in)
201843.5 mm (1.7 in)
201938.9 mm (1.5 in)
202048.0 mm (1.9 in)
202144.5 mm (1.8 in)
202228.8 mm (1.1 in)
202335.7 mm (1.4 in)
202432.3 mm (1.3 in)
202556.6 mm (2.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Bor by year The longest dry spell of the year at Bor, 1936 to 2025. The record is 50 days in 1945, marked on the chart; the median year is 18 days. 020406019401960198020002020Record: 50 days in 1945
The longest dry spell of the year at Bor, 1936 to 2025. The record is 50 days in 1945, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Bor by year
YearLongest dry spell (CDD)
193620 days
193731 days
193826 days
193915 days
194019 days
194123 days
194215 days
194332 days
194417 days
194550 days
194627 days
194743 days
194821 days
194931 days
195016 days
195135 days
195232 days
195326 days
195432 days
195516 days
195625 days
195722 days
19581 day
195916 days
196025 days
196116 days
196219 days
196318 days
196425 days
196516 days
196619 days
196722 days
196821 days
196915 days
197034 days
197130 days
197214 days
197310 days
197415 days
19759 days
197616 days
197714 days
197810 days
197915 days
198023 days
198115 days
198219 days
198316 days
198414 days
198514 days
198612 days
198723 days
198818 days
198920 days
199022 days
199115 days
199216 days
199317 days
199422 days
199516 days
199625 days
199719 days
199828 days
199932 days
200014 days
200118 days
200221 days
200318 days
200415 days
200534 days
200623 days
200728 days
200813 days
200919 days
201022 days
201114 days
201237 days
201318 days
201410 days
201513 days
201634 days
201711 days
201821 days
201918 days
202016 days
20218 days
202210 days
202312 days
202412 days
202512 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

73 years with a frost

Across 73 years with a frost, the median last spring frost at Bor falls on 4 June and the median first autumn frost on 12 September, which leaves a median of 98 days between them.

In 1989 to 2018 the median growing season was 101 days. That is 2 days more than in 1939 to 1975.

Fitted over all years, the growing season changes by +0.7 days per decade at this station.

Frost dates and growing season at Bor
MeasureMedian, all yearsEarliest period (1939 to 1975)Recent period (1989 to 2018)Recent against earliestFitted trend
Last spring frost4 June5 June1 June4 days earlier-0.5 days per decade
First autumn frost12 September13 September11 September2 days earlier+0.2 days per decade
Growing days98 days99 days101 days2 days more+0.7 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

88 years, 1936 to 2024

A day with at least 25.7 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 56.7 mm (2.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Bor: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years25.7 mm (1.0 in)
5 years33.4 mm (1.3 in)
10 years38.7 mm (1.5 in)
25 years45.7 mm (1.8 in)
50 years51.2 mm (2.0 in)
100 years56.7 mm (2.2 in)Longer than the 88 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, 88 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: 61.7 mm (2.4 in) in 2008; 56.3 mm (2.2 in) in 1968; 52.5 mm (2.1 in) in 1949.

Climate Twins

2004 to 2018 against 1961 to 1990

Over 2004 to 2018, Bor had a mean temperature of -2.2 C (28.1 F) and 597.6 mm (23.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Napas (Russia, 479 km away), Enisejsk (Russia, 370 km away) and Ust-Ozernoe (Russia, 327 km away).

Climate twins of Bor: 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
NapasRussia479 km (298 mi)-2.0 C (28.3 F)553.9 mm (21.8 in)1.34
EnisejskRussia370 km (230 mi)-1.5 C (29.2 F)478.3 mm (18.8 in)1.48
Ust-OzernoeRussia327 km (203 mi)-1.5 C (29.4 F)536.1 mm (21.1 in)1.50

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 Bor standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Bor 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).