Built 2026-10-15 (15 October 2026)

Pervomajskoe Weather Records (RSM00029348)

Record envelope, standing records and threshold days for Pervomajskoe (RSM00029348), Russia, with 133 years of record.

Key Facts for Pervomajskoe

  • Pervomajskoe (RSM00029348) is a weather station in Russia at 57.07 latitude and 86.22 longitude, 114 m (374 ft) above sea level.
  • The station reports from 1887 to 2019, 133 years of record.
  • 1,464 records set at Pervomajskoe still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Pervomajskoe set a daily record precipitation of 12.2 mm (0.5 in) on 8 June 2019.

About the Station

  • Location: Russia, 57.07 latitude, 86.22 longitude.
  • Elevation: 114 m (374 ft).
  • Period of record: 1887 to 2019, 133 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Pervomajskoe, with 2026 drawn through them The band shows the record high and record low for each calendar day at Pervomajskoe. The lines show the 2026 daily maximum and minimum. 0 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 Pervomajskoe. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Pervomajskoe, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan4.0 C (39.2 F)-52.0 C (-61.6 F)n/an/a
Feb7.4 C (45.3 F)-52.6 C (-62.7 F)n/an/a
Mar15.9 C (60.6 F)-41.0 C (-41.8 F)n/an/a
Apr27.9 C (82.2 F)-30.1 C (-22.2 F)n/an/a
May35.0 C (95.0 F)-12.2 C (10.0 F)n/an/a
Jun34.6 C (94.3 F)-3.0 C (26.6 F)n/an/a
Jul35.3 C (95.5 F)2.1 C (35.8 F)n/an/a
Aug33.6 C (92.5 F)-2.4 C (27.7 F)n/an/a
Sep31.6 C (88.9 F)-8.3 C (17.1 F)n/an/a
Oct22.6 C (72.7 F)-27.0 C (-16.6 F)n/an/a
Nov10.4 C (50.7 F)-50.8 C (-59.4 F)n/an/a
Dec5.0 C (41.0 F)-52.0 C (-61.6 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Pervomajskoe by the year they were set 1,464 records at Pervomajskoe still stand. 1969 holds the most, with 40. 0102030401936: 121937: 251938: 171939: 161940: 121941: 201942: 41943: 101944: 61945: 181946: 131947: 211948: 121949: 131950: 111951: 261952: 261953: 251954: 161955: 121956: 131957: 161958: 281959: 121960: 141961: 141962: 141963: 161964: 221965: 61966: 231967: 151968: 201969: 401970: 221971: 121972: 151973: 131974: 221975: 151976: 191977: 121978: 171979: 241980: 61981: 211982: 101983: 221984: 241985: 51986: 121987: 231988: 111989: 151990: 111991: 81992: 191993: 121994: 151995: 271996: 121997: 221998: 141999: 352000: 112001: 392002: 312003: 162004: 312005: 232006: 282007: 152008: 142009: 172010: 172011: 202012: 182013: 192014: 262015: 122016: 172017: 152018: 242019: 81936194519541963197219811990199920082017
1,464 records at Pervomajskoe still stand. 1969 holds the most, with 40.
Standing records at Pervomajskoe by the year they were set
Year setStanding records
193612
193725
193817
193916
194012
194120
19424
194310
19446
194518
194613
194721
194812
194913
195011
195126
195226
195325
195416
195512
195613
195716
195828
195912
196014
196114
196214
196316
196422
19656
196623
196715
196820
196940
197022
197112
197215
197313
197422
197515
197619
197712
197817
197924
19806
198121
198210
198322
198424
19855
198612
198723
198811
198915
199011
19918
199219
199312
199415
199527
199612
199722
199814
199935
200011
200139
200231
200316
200431
200523
200628
200715
200814
200917
201017
201120
201218
201319
201426
201512
201617
201715
201824
20198

All-Time Record Progression

5 new records
When Pervomajskoe set new all-time records 5 all-time records were set at Pervomajskoe between 2 July 1969 and 13 July 2014. Each dot is a new record. Record high maximum temperatureRecord high minimum temperature2 July 1969: Record high maximum temperature 34.9 C (94.8 F)11 July 1974: Record high maximum temperature 35.3 C (95.5 F)6 July 2005: Record high minimum temperature 21.0 C (69.8 F)10 July 2007: Record high minimum temperature 21.1 C (70.0 F)13 July 2014: Record high minimum temperature 22.1 C (71.8 F)19701980199020002010
5 all-time records were set at Pervomajskoe between 2 July 1969 and 13 July 2014. Each dot is a new record.
When Pervomajskoe set new all-time records
DateKindDetail
1969-07-02Record high maximum temperatureRecord high maximum temperature 34.9 C (94.8 F)
1974-07-11Record high maximum temperatureRecord high maximum temperature 35.3 C (95.5 F)
2005-07-06Record high minimum temperatureRecord high minimum temperature 21.0 C (69.8 F)
2007-07-10Record high minimum temperatureRecord high minimum temperature 21.1 C (70.0 F)
2014-07-13Record high minimum temperatureRecord high minimum temperature 22.1 C (71.8 F)

Wettest Day of Each Month

Aug: 69.2 mm (2.7 in)
Record daily precipitation for each month at Pervomajskoe The wettest day on record for each calendar month at Pervomajskoe. The most was 69.2 mm (2.7 in) on 4 August 1962. 020406080 Jan: 12.4 mm (0.5 in), 15 January 1941 Jan Feb: 8.4 mm (0.33 in), 7 February 2009 Feb Mar: 12.5 mm (0.5 in), 25 March 2015 Mar Apr: 18.7 mm (0.7 in), 25 April 2004 Apr May: 35.1 mm (1.4 in), 1 May 1965 May Jun: 48.8 mm (1.9 in), 24 June 2004 Jun Jul: 50.2 mm (2.0 in), 22 July 1938 Jul Aug: 69.2 mm (2.7 in), 4 August 1962 Aug Sep: 30.4 mm (1.2 in), 12 September 1991 Sep Oct: 23.2 mm (0.9 in), 1 October 1996 Oct Nov: 21.9 mm (0.9 in), 4 November 1994 Nov Dec: 12.6 mm (0.5 in), 2 December 2013 Dec
The wettest day on record for each calendar month at Pervomajskoe. The most was 69.2 mm (2.7 in) on 4 August 1962.
Record daily precipitation for each month at Pervomajskoe
MonthRecord daily precipitation (mm)Date
Jan12.4 mm (0.5 in)15 January 1941
Feb8.4 mm (0.33 in)7 February 2009
Mar12.5 mm (0.5 in)25 March 2015
Apr18.7 mm (0.7 in)25 April 2004
May35.1 mm (1.4 in)1 May 1965
Jun48.8 mm (1.9 in)24 June 2004
Jul50.2 mm (2.0 in)22 July 1938
Aug69.2 mm (2.7 in)4 August 1962
Sep30.4 mm (1.2 in)12 September 1991
Oct23.2 mm (0.9 in)1 October 1996
Nov21.9 mm (0.9 in)4 November 1994
Dec12.6 mm (0.5 in)2 December 2013

Period of Record Coverage

1887 to 2019
Days with data per year at Pervomajskoe 85 years of record at Pervomajskoe, 1887 to 2019. 2 years have data for under 90 percent of days and are left out of rankings: 1887, 2019. 1887: 1 of 365 days1936: 366 of 366 days1937: 334 of 365 days1938: 334 of 365 days1939: 333 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 364 of 365 days1943: 364 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 364 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 364 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: 346 of 365 days1967: 332 of 365 days1968: 360 of 366 days1969: 362 of 365 days1970: 362 of 365 days1971: 365 of 365 days1972: 362 of 366 days1973: 363 of 365 days1974: 364 of 365 days1975: 364 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: 181 of 365 days19501965198019952010
85 years of record at Pervomajskoe, 1887 to 2019. 2 years have data for under 90 percent of days and are left out of rankings: 1887, 2019.
Days with data per year at Pervomajskoe
YearDays with dataShare of yearComplete
188710%No
1936366100%Yes
193733492%Yes
193833492%Yes
193933391%Yes
1940366100%Yes
1941365100%Yes
1942364100%Yes
1943364100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955364100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959364100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
196634695%Yes
196733291%Yes
196836098%Yes
196936299%Yes
197036299%Yes
1971365100%Yes
197236299%Yes
197336399%Yes
1974364100%Yes
1975364100%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
201918150%No

Latest Records

20
Latest records at Pervomajskoe
DateStationRecordValueBeat old record byOld record stoodSignificance
8 June 2019Pervomajskoe, RUdaily rain12.2 mm (0.5 in)0.3 mm (0.01 in)69 years20 of 100 (Routine)
8 May 2019Pervomajskoe, RUdaily high min13.7 C (56.7 F)0.1 C (0.2 F)16 years15 of 100 (Routine)
18 April 2019Pervomajskoe, RUdaily rain12.5 mm (0.5 in)2.2 mm (0.09 in)12 years20 of 100 (Routine)
16 March 2019Pervomajskoe, RUdaily high max7.4 C (45.3 F)1.4 C (2.5 F)50 years27 of 100 (Routine)
16 March 2019Pervomajskoe, RUdaily high min0.4 C (32.7 F)0.8 C (1.4 F)17 years15 of 100 (Routine)
14 March 2019Pervomajskoe, RUdaily high min-0.7 C (30.7 F)0.5 C (0.9 F)2 years10 of 100 (Routine)
8 March 2019Pervomajskoe, RUdaily high min-1.8 C (28.8 F)0.5 C (0.9 F)8 years12 of 100 (Routine)
21 February 2019Pervomajskoe, RUdaily high min (Tie)-1.4 C (29.5 F)tie56 years6 of 100 (Routine)
20 February 2019Pervomajskoe, RUdaily high min-3.9 C (25.0 F)1.3 C (2.3 F)56 years27 of 100 (Routine)
19 February 2019Pervomajskoe, RUdaily high min-3.6 C (25.5 F)0.5 C (0.9 F)16 years15 of 100 (Routine)
21 January 2019Pervomajskoe, RUdaily high min-4.0 C (24.8 F)1.4 C (2.5 F)12 years14 of 100 (Routine)
27 December 2018Pervomajskoe, RUdaily low min-40.3 C (-40.5 F)1.4 C (2.5 F)60 years29 of 100 (Routine)
5 December 2018Pervomajskoe, RUdaily low min-40.7 C (-41.3 F)0.4 C (0.7 F)43 years22 of 100 (Routine)
30 November 2018Pervomajskoe, RUdaily rain9.0 mm (0.35 in)2.4 mm (0.09 in)8 years20 of 100 (Routine)
25 November 2018Pervomajskoe, RUdaily rain9.5 mm (0.37 in)2.5 mm (0.10 in)52 years20 of 100 (Routine)
5 November 2018Pervomajskoe, RUdaily rain8.9 mm (0.35 in)1.1 mm (0.04 in)12 years18 of 100 (Routine)
29 October 2018Pervomajskoe, RUdaily high max15.0 C (59.0 F)5.3 C (9.5 F)37 years29 of 100 (Routine)
28 October 2018Pervomajskoe, RUdaily high max17.8 C (64.0 F)8.5 C (15.3 F)12 years27 of 100 (Routine)
28 October 2018Pervomajskoe, RUdaily high min5.0 C (41.0 F)2.3 C (4.1 F)12 years17 of 100 (Routine)
13 October 2018Pervomajskoe, RUdaily high min10.9 C (51.6 F)1.6 C (2.9 F)25 years20 of 100 (Routine)

Climate Trend

74 complete years, 1936 to 2018
Annual mean temperature at Pervomajskoe as warming stripes, 1936 to 2018 One stripe for each of 74 complete years at Pervomajskoe, 1936 to 2018. Blue stripes are years cooler than the station's own mean of 0.6 C (33.0 F); red stripes are warmer. The coolest year was 1954, at -2.0 C (28.4 F), and the warmest was 2015, at 3.3 C (37.9 F). The strongest colour marks a difference of 2.8 C (5.0 F). 1936: -0.5 C, -1.1 C from the station mean1940: -0.7 C, -1.3 C from the station mean1941: -1.5 C, -2.1 C from the station mean1942: -0.2 C, -0.8 C from the station mean1943: 0.5 C, -0.1 C from the station mean1944: 0.7 C, +0.1 C from the station mean1945: -0.8 C, -1.4 C from the station mean1946: -0.8 C, -1.3 C from the station mean1950: -0.3 C, -0.9 C from the station mean1951: 0.1 C, -0.5 C from the station mean1952: -1.5 C, -2.1 C from the station mean1953: 0.4 C, -0.1 C from the station mean1954: -2.0 C, -2.6 C from the station mean1956: -0.8 C, -1.4 C from the station mean1957: 0.1 C, -0.5 C from the station mean1958: -0.5 C, -1.1 C from the station mean1959: -0.8 C, -1.4 C from the station mean1960: -1.4 C, -1.9 C from the station mean1961: 0.1 C, -0.4 C from the station mean1962: 1.5 C, +1.0 C from the station mean1963: 0.9 C, +0.3 C from the station mean1964: 0.2 C, -0.4 C from the station mean1965: 0.5 C, 0.0 C from the station mean1968: -1.1 C, -1.7 C from the station mean1969: -1.9 C, -2.5 C from the station mean1970: -0.6 C, -1.2 C from the station mean1971: 0.5 C, -0.1 C from the station mean1972: -1.1 C, -1.7 C from the station mean1973: 1.5 C, +0.9 C from the station mean1974: -1.7 C, -2.3 C from the station mean1975: 0.7 C, +0.2 C from the station mean1976: -0.7 C, -1.3 C from the station mean1977: 0.0 C, -0.5 C from the station mean1978: 1.4 C, +0.8 C from the station mean1979: 0.2 C, -0.4 C from the station mean1980: 0.5 C, -0.1 C from the station mean1981: 1.3 C, +0.7 C from the station mean1982: 1.5 C, +0.9 C from the station mean1983: 2.5 C, +1.9 C from the station mean1984: -1.5 C, -2.1 C from the station mean1985: -0.2 C, -0.8 C from the station mean1986: 0.8 C, +0.2 C from the station mean1987: -0.4 C, -1.0 C from the station mean1988: 1.3 C, +0.8 C from the station mean1989: 1.8 C, +1.3 C from the station mean1990: 1.9 C, +1.4 C from the station mean1991: 1.3 C, +0.8 C from the station mean1992: 1.4 C, +0.8 C from the station mean1993: 1.4 C, +0.8 C from the station mean1994: 1.6 C, +1.0 C from the station mean1995: 3.2 C, +2.6 C from the station mean1996: -0.2 C, -0.8 C from the station mean1997: 2.1 C, +1.5 C from the station mean1998: 0.7 C, +0.1 C from the station mean1999: 1.5 C, +1.0 C from the station mean2000: 0.8 C, +0.2 C from the station mean2001: 1.6 C, +1.1 C from the station mean2002: 2.5 C, +1.9 C from the station mean2003: 2.2 C, +1.6 C from the station mean2004: 1.7 C, +1.1 C from the station mean2005: 1.9 C, +1.4 C from the station mean2006: 0.4 C, -0.2 C from the station mean2007: 2.7 C, +2.1 C from the station mean2008: 1.9 C, +1.3 C from the station mean2009: -0.1 C, -0.7 C from the station mean2010: -0.8 C, -1.3 C from the station mean2011: 2.3 C, +1.7 C from the station mean2012: 1.0 C, +0.5 C from the station mean2013: 2.1 C, +1.5 C from the station mean2014: 1.4 C, +0.8 C from the station mean2015: 3.3 C, +2.7 C from the station mean2016: 1.7 C, +1.1 C from the station mean2017: 2.6 C, +2.0 C from the station mean2018: 0.2 C, -0.4 C from the station mean193619401950196019701980199020002010
One stripe for each of 74 complete years at Pervomajskoe, 1936 to 2018. Blue stripes are years cooler than the station's own mean of 0.6 C (33.0 F); red stripes are warmer. The coolest year was 1954, at -2.0 C (28.4 F), and the warmest was 2015, at 3.3 C (37.9 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Pervomajskoe as warming stripes, 1936 to 2018
YearAnnual mean temperatureDifference from the station mean
1936-0.5 C-1.10 C
1940-0.7 C-1.32 C
1941-1.5 C-2.07 C
1942-0.2 C-0.80 C
19430.5 C-0.07 C
19440.7 C+0.10 C
1945-0.8 C-1.40 C
1946-0.8 C-1.33 C
1950-0.3 C-0.90 C
19510.1 C-0.50 C
1952-1.5 C-2.09 C
19530.4 C-0.15 C
1954-2.0 C-2.57 C
1956-0.8 C-1.36 C
19570.1 C-0.49 C
1958-0.5 C-1.11 C
1959-0.8 C-1.38 C
1960-1.4 C-1.94 C
19610.1 C-0.43 C
19621.5 C+0.96 C
19630.9 C+0.32 C
19640.2 C-0.42 C
19650.5 C-0.04 C
1968-1.1 C-1.68 C
1969-1.9 C-2.50 C
1970-0.6 C-1.17 C
19710.5 C-0.12 C
1972-1.1 C-1.66 C
19731.5 C+0.94 C
1974-1.7 C-2.28 C
19750.7 C+0.16 C
1976-0.7 C-1.26 C
19770.0 C-0.53 C
19781.4 C+0.80 C
19790.2 C-0.38 C
19800.5 C-0.07 C
19811.3 C+0.69 C
19821.5 C+0.90 C
19832.5 C+1.91 C
1984-1.5 C-2.11 C
1985-0.2 C-0.80 C
19860.8 C+0.23 C
1987-0.4 C-0.96 C
19881.3 C+0.77 C
19891.8 C+1.27 C
19901.9 C+1.35 C
19911.3 C+0.77 C
19921.4 C+0.78 C
19931.4 C+0.80 C
19941.6 C+1.03 C
19953.2 C+2.61 C
1996-0.2 C-0.77 C
19972.1 C+1.48 C
19980.7 C+0.12 C
19991.5 C+0.97 C
20000.8 C+0.24 C
20011.6 C+1.07 C
20022.5 C+1.90 C
20032.2 C+1.60 C
20041.7 C+1.08 C
20051.9 C+1.36 C
20060.4 C-0.17 C
20072.7 C+2.13 C
20081.9 C+1.33 C
2009-0.1 C-0.72 C
2010-0.8 C-1.34 C
20112.3 C+1.74 C
20121.0 C+0.47 C
20132.1 C+1.54 C
20141.4 C+0.82 C
20153.3 C+2.71 C
20161.7 C+1.11 C
20172.6 C+2.01 C
20180.2 C-0.36 C

The annual mean temperature here has risen by 0.4 C (0.2 to 0.5) per decade over 1936 to 2018. In Fahrenheit: 0.6 F (0.4 to 0.8) per decade. The slope is a straight line fitted to 74 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Pervomajskoe
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.4 C (0.2 to 0.5) per decade0.6 F (0.4 to 0.8) per decade1936 to 201874Rise
Mean daily maximum0.3 C (0.2 to 0.4) per decade0.6 F (0.4 to 0.7) per decade1936 to 201874Rise
Mean daily minimum0.4 C (0.3 to 0.5) per decade0.7 F (0.5 to 0.9) per decade1936 to 201874Rise

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

1887 to 2019
Yearly extremes at Pervomajskoe: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.3 C (95.5 F)197432.2 C (90.0 F)85
Coldest night (TNn)-52.6 C (-62.7 F)1951-43.2 C (-45.8 F)85
Wettest day (Rx1day)69.2 mm (2.7 in)196224.8 mm (1.0 in)85
Wettest five days (Rx5day)78.1 mm (3.1 in)194444.1 mm (1.7 in)84
Longest dry spell (CDD)59 days194322 days85

Hottest day (TXx)

Hottest day (TXx) at Pervomajskoe by year The hottest day of the year at Pervomajskoe, 1887 to 2019. The record is 35.3 C (95.5 F) in 1974, marked on the chart; the median year is 32.2 C (90.0 F). 2025303540190019201940196019802000Record: 35.3 C (95.5 F) in 1974
The hottest day of the year at Pervomajskoe, 1887 to 2019. The record is 35.3 C (95.5 F) in 1974, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Pervomajskoe by year
YearHottest day (TXx)
188724.7 C (76.5 F)
193631.8 C (89.2 F)
193733.1 C (91.6 F)
193829.8 C (85.6 F)
193931.5 C (88.7 F)
194032.6 C (90.7 F)
194129.7 C (85.5 F)
194231.7 C (89.1 F)
194331.6 C (88.9 F)
194433.1 C (91.6 F)
194528.6 C (83.5 F)
194630.5 C (86.9 F)
194728.7 C (83.7 F)
194832.1 C (89.8 F)
194929.4 C (84.9 F)
195029.9 C (85.8 F)
195132.8 C (91.0 F)
195233.3 C (91.9 F)
195334.3 C (93.7 F)
195430.7 C (87.3 F)
195533.6 C (92.5 F)
195631.6 C (88.9 F)
195732.6 C (90.7 F)
195831.7 C (89.1 F)
195931.7 C (89.1 F)
196031.5 C (88.7 F)
196132.7 C (90.9 F)
196232.1 C (89.8 F)
196332.9 C (91.2 F)
196431.9 C (89.4 F)
196532.2 C (90.0 F)
196630.1 C (86.2 F)
196733.9 C (93.0 F)
196833.7 C (92.7 F)
196934.9 C (94.8 F)
197030.9 C (87.6 F)
197132.8 C (91.0 F)
197229.6 C (85.3 F)
197331.5 C (88.7 F)
197435.3 C (95.5 F)
197533.8 C (92.8 F)
197633.6 C (92.5 F)
197732.7 C (90.9 F)
197832.7 C (90.9 F)
197932.9 C (91.2 F)
198033.0 C (91.4 F)
198132.5 C (90.5 F)
198232.5 C (90.5 F)
198332.5 C (90.5 F)
198429.7 C (85.5 F)
198530.0 C (86.0 F)
198631.3 C (88.3 F)
198731.0 C (87.8 F)
198830.5 C (86.9 F)
198934.0 C (93.2 F)
199033.6 C (92.5 F)
199132.8 C (91.0 F)
199231.5 C (88.7 F)
199332.7 C (90.9 F)
199434.6 C (94.3 F)
199532.1 C (89.8 F)
199632.4 C (90.3 F)
199731.0 C (87.8 F)
199832.0 C (89.6 F)
199933.8 C (92.8 F)
200032.7 C (90.9 F)
200133.9 C (93.0 F)
200232.2 C (90.0 F)
200333.1 C (91.6 F)
200435.0 C (95.0 F)
200533.6 C (92.5 F)
200633.4 C (92.1 F)
200731.5 C (88.7 F)
200830.1 C (86.2 F)
200930.4 C (86.7 F)
201031.6 C (88.9 F)
201132.2 C (90.0 F)
201234.0 C (93.2 F)
201330.2 C (86.4 F)
201434.7 C (94.5 F)
201531.8 C (89.2 F)
201632.9 C (91.2 F)
201734.2 C (93.6 F)
201834.0 C (93.2 F)
201930.2 C (86.4 F)

Coldest night (TNn)

Coldest night (TNn) at Pervomajskoe by year The coldest night of the year at Pervomajskoe, 1887 to 2019. The record is -52.6 C (-62.7 F) in 1951, marked on the chart; the median year is -43.2 C (-45.8 F). -60-40-20020190019201940196019802000Record: -52.6 C (-62.7 F) in 1951
The coldest night of the year at Pervomajskoe, 1887 to 2019. The record is -52.6 C (-62.7 F) in 1951, marked on the chart; the median year is -43.2 C (-45.8 F).
Coldest night (TNn) at Pervomajskoe by year
YearColdest night (TNn)
18879.4 C (48.9 F)
1936-46.9 C (-52.4 F)
1937-45.9 C (-50.6 F)
1938-52.0 C (-61.6 F)
1939-45.5 C (-49.9 F)
1940-48.0 C (-54.4 F)
1941-44.9 C (-48.8 F)
1942-41.3 C (-42.3 F)
1943-41.6 C (-42.9 F)
1944-43.1 C (-45.6 F)
1945-46.5 C (-51.7 F)
1946-47.3 C (-53.1 F)
1947-52.0 C (-61.6 F)
1948-44.2 C (-47.6 F)
1949-47.8 C (-54.0 F)
1950-42.5 C (-44.5 F)
1951-52.6 C (-62.7 F)
1952-50.8 C (-59.4 F)
1953-43.5 C (-46.3 F)
1954-46.7 C (-52.1 F)
1955-47.0 C (-52.6 F)
1956-44.4 C (-47.9 F)
1957-49.0 C (-56.2 F)
1958-49.8 C (-57.6 F)
1959-44.4 C (-47.9 F)
1960-46.7 C (-52.1 F)
1961-47.1 C (-52.8 F)
1962-40.6 C (-41.1 F)
1963-40.1 C (-40.2 F)
1964-35.7 C (-32.3 F)
1965-43.9 C (-47.0 F)
1966-49.0 C (-56.2 F)
1967-39.6 C (-39.3 F)
1968-47.1 C (-52.8 F)
1969-48.7 C (-55.7 F)
1970-40.6 C (-41.1 F)
1971-44.9 C (-48.8 F)
1972-44.8 C (-48.6 F)
1973-42.9 C (-45.2 F)
1974-44.7 C (-48.5 F)
1975-42.2 C (-44.0 F)
1976-44.1 C (-47.4 F)
1977-48.3 C (-54.9 F)
1978-43.1 C (-45.6 F)
1979-48.1 C (-54.6 F)
1980-38.5 C (-37.3 F)
1981-33.7 C (-28.7 F)
1982-38.6 C (-37.5 F)
1983-32.1 C (-25.8 F)
1984-49.3 C (-56.7 F)
1985-39.9 C (-39.8 F)
1986-41.1 C (-42.0 F)
1987-43.2 C (-45.8 F)
1988-39.7 C (-39.5 F)
1989-35.8 C (-32.4 F)
1990-40.1 C (-40.2 F)
1991-41.8 C (-43.2 F)
1992-34.4 C (-29.9 F)
1993-35.1 C (-31.2 F)
1994-37.6 C (-35.7 F)
1995-34.8 C (-30.6 F)
1996-44.3 C (-47.7 F)
1997-40.1 C (-40.2 F)
1998-44.1 C (-47.4 F)
1999-45.8 C (-50.4 F)
2000-43.4 C (-46.1 F)
2001-45.0 C (-49.0 F)
2002-41.8 C (-43.2 F)
2003-36.2 C (-33.2 F)
2004-36.1 C (-33.0 F)
2005-36.1 C (-33.0 F)
2006-48.0 C (-54.4 F)
2007-36.4 C (-33.5 F)
2008-40.7 C (-41.3 F)
2009-43.5 C (-46.3 F)
2010-42.4 C (-44.3 F)
2011-37.0 C (-34.6 F)
2012-41.3 C (-42.3 F)
2013-35.3 C (-31.5 F)
2014-39.0 C (-38.2 F)
2015-34.4 C (-29.9 F)
2016-43.3 C (-45.9 F)
2017-40.7 C (-41.3 F)
2018-42.7 C (-44.9 F)
2019-43.4 C (-46.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Pervomajskoe by year The wettest day of the year at Pervomajskoe, 1887 to 2019. The record is 69.2 mm (2.7 in) in 1962, marked on the chart; the median year is 24.8 mm (1.0 in). 020406080190019201940196019802000Record: 69.2 mm (2.7 in) in 1962
The wettest day of the year at Pervomajskoe, 1887 to 2019. The record is 69.2 mm (2.7 in) in 1962, marked on the chart; the median year is 24.8 mm (1.0 in).
Wettest day (Rx1day) at Pervomajskoe by year
YearWettest day (Rx1day)
18870.0 mm (0.00 in)
193619.5 mm (0.8 in)
193742.1 mm (1.7 in)
193850.2 mm (2.0 in)
193928.9 mm (1.1 in)
194021.7 mm (0.9 in)
194125.1 mm (1.0 in)
194233.1 mm (1.3 in)
194329.4 mm (1.2 in)
194441.1 mm (1.6 in)
194536.2 mm (1.4 in)
194631.0 mm (1.2 in)
194726.6 mm (1.0 in)
194818.3 mm (0.7 in)
194924.8 mm (1.0 in)
195024.6 mm (1.0 in)
195116.2 mm (0.6 in)
195238.9 mm (1.5 in)
195315.9 mm (0.6 in)
195424.0 mm (0.9 in)
195543.3 mm (1.7 in)
195646.1 mm (1.8 in)
195735.1 mm (1.4 in)
195817.8 mm (0.7 in)
195926.5 mm (1.0 in)
196033.2 mm (1.3 in)
196119.9 mm (0.8 in)
196269.2 mm (2.7 in)
196326.6 mm (1.0 in)
196421.5 mm (0.8 in)
196535.1 mm (1.4 in)
196615.4 mm (0.6 in)
196722.5 mm (0.9 in)
196823.2 mm (0.9 in)
196934.5 mm (1.4 in)
197037.5 mm (1.5 in)
197122.4 mm (0.9 in)
197223.0 mm (0.9 in)
197333.7 mm (1.3 in)
197421.9 mm (0.9 in)
197521.2 mm (0.8 in)
197636.3 mm (1.4 in)
197725.4 mm (1.0 in)
197841.4 mm (1.6 in)
197920.5 mm (0.8 in)
198023.6 mm (0.9 in)
198123.1 mm (0.9 in)
198215.8 mm (0.6 in)
198327.8 mm (1.1 in)
198420.4 mm (0.8 in)
198527.6 mm (1.1 in)
198622.2 mm (0.9 in)
198732.9 mm (1.3 in)
198835.4 mm (1.4 in)
198922.4 mm (0.9 in)
199022.3 mm (0.9 in)
199138.4 mm (1.5 in)
199230.8 mm (1.2 in)
199327.4 mm (1.1 in)
199441.1 mm (1.6 in)
199527.3 mm (1.1 in)
199635.7 mm (1.4 in)
199724.3 mm (1.0 in)
199824.6 mm (1.0 in)
199923.0 mm (0.9 in)
200022.4 mm (0.9 in)
200119.4 mm (0.8 in)
200226.3 mm (1.0 in)
200318.4 mm (0.7 in)
200448.8 mm (1.9 in)
200517.7 mm (0.7 in)
200633.8 mm (1.3 in)
200729.7 mm (1.2 in)
200820.6 mm (0.8 in)
200924.4 mm (1.0 in)
201023.0 mm (0.9 in)
201133.5 mm (1.3 in)
201217.7 mm (0.7 in)
201313.9 mm (0.5 in)
201421.5 mm (0.8 in)
201529.9 mm (1.2 in)
201618.7 mm (0.7 in)
201731.5 mm (1.2 in)
201822.7 mm (0.9 in)
201919.0 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Pervomajskoe by year The wettest five days of the year at Pervomajskoe, 1887 to 2019. The record is 78.1 mm (3.1 in) in 1944, marked on the chart; the median year is 44.1 mm (1.7 in). 20406080190019201940196019802000Record: 78.1 mm (3.1 in) in 1944
The wettest five days of the year at Pervomajskoe, 1887 to 2019. The record is 78.1 mm (3.1 in) in 1944, marked on the chart; the median year is 44.1 mm (1.7 in).
Wettest five days (Rx5day) at Pervomajskoe by year
YearWettest five days (Rx5day)
1887n/a
193637.5 mm (1.5 in)
193766.8 mm (2.6 in)
193853.4 mm (2.1 in)
193956.5 mm (2.2 in)
194046.5 mm (1.8 in)
194132.7 mm (1.3 in)
194260.0 mm (2.4 in)
194353.1 mm (2.1 in)
194478.1 mm (3.1 in)
194570.4 mm (2.8 in)
194659.8 mm (2.4 in)
194750.9 mm (2.0 in)
194837.0 mm (1.5 in)
194949.2 mm (1.9 in)
195053.7 mm (2.1 in)
195143.5 mm (1.7 in)
195268.8 mm (2.7 in)
195339.0 mm (1.5 in)
195429.9 mm (1.2 in)
195544.3 mm (1.7 in)
195670.0 mm (2.8 in)
195761.3 mm (2.4 in)
195847.1 mm (1.9 in)
195933.0 mm (1.3 in)
196044.6 mm (1.8 in)
196139.8 mm (1.6 in)
196272.2 mm (2.8 in)
196348.9 mm (1.9 in)
196440.5 mm (1.6 in)
196556.3 mm (2.2 in)
196629.9 mm (1.2 in)
196738.0 mm (1.5 in)
196856.0 mm (2.2 in)
196942.9 mm (1.7 in)
197067.0 mm (2.6 in)
197129.2 mm (1.1 in)
197250.4 mm (2.0 in)
197354.7 mm (2.2 in)
197430.6 mm (1.2 in)
197538.2 mm (1.5 in)
197637.9 mm (1.5 in)
197729.9 mm (1.2 in)
197853.5 mm (2.1 in)
197932.6 mm (1.3 in)
198036.9 mm (1.5 in)
198146.1 mm (1.8 in)
198228.8 mm (1.1 in)
198335.5 mm (1.4 in)
198437.9 mm (1.5 in)
198546.1 mm (1.8 in)
198628.0 mm (1.1 in)
198771.8 mm (2.8 in)
198852.0 mm (2.0 in)
198926.7 mm (1.1 in)
199038.2 mm (1.5 in)
199161.8 mm (2.4 in)
199244.9 mm (1.8 in)
199354.9 mm (2.2 in)
199443.1 mm (1.7 in)
199530.8 mm (1.2 in)
199657.5 mm (2.3 in)
199741.9 mm (1.6 in)
199824.6 mm (1.0 in)
199930.8 mm (1.2 in)
200043.0 mm (1.7 in)
200131.2 mm (1.2 in)
200240.5 mm (1.6 in)
200342.6 mm (1.7 in)
200458.0 mm (2.3 in)
200536.6 mm (1.4 in)
200645.7 mm (1.8 in)
200751.7 mm (2.0 in)
200857.7 mm (2.3 in)
200945.3 mm (1.8 in)
201032.6 mm (1.3 in)
201157.3 mm (2.3 in)
201228.6 mm (1.1 in)
201326.4 mm (1.0 in)
201448.5 mm (1.9 in)
201549.8 mm (2.0 in)
201643.9 mm (1.7 in)
201742.5 mm (1.7 in)
201831.5 mm (1.2 in)
201925.8 mm (1.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Pervomajskoe by year The longest dry spell of the year at Pervomajskoe, 1887 to 2019. The record is 59 days in 1943, marked on the chart; the median year is 22 days. 0204060190019201940196019802000Record: 59 days in 1943
The longest dry spell of the year at Pervomajskoe, 1887 to 2019. The record is 59 days in 1943, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Pervomajskoe by year
YearLongest dry spell (CDD)
18871 day
193625 days
193713 days
193817 days
193923 days
194023 days
194123 days
194231 days
194359 days
194430 days
194526 days
194627 days
194729 days
194815 days
194935 days
195032 days
195121 days
195219 days
195340 days
195426 days
195530 days
195620 days
195718 days
195822 days
195920 days
196017 days
196118 days
196221 days
196320 days
196446 days
196523 days
196614 days
196717 days
196827 days
196919 days
197025 days
197126 days
197219 days
197323 days
197425 days
197528 days
197617 days
197731 days
197824 days
197917 days
198034 days
198122 days
198219 days
198319 days
198415 days
198522 days
198620 days
198717 days
198830 days
198936 days
199024 days
199123 days
199230 days
199326 days
199415 days
199521 days
199634 days
199719 days
199826 days
199935 days
200019 days
200113 days
200228 days
200317 days
200422 days
200522 days
200624 days
200719 days
200818 days
200918 days
201032 days
201124 days
201254 days
201314 days
201416 days
201517 days
201621 days
201720 days
201819 days
201918 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

74 years with a frost

Across 74 years with a frost, the median last spring frost at Pervomajskoe falls on 23 May and the median first autumn frost on 15 September, which leaves a median of 115 days between them.

In 1989 to 2018 the median growing season was 120 days. That is 10 days more than in 1936 to 1974.

Fitted over all years, the growing season changes by +1.9 days per decade at this station.

Frost dates and growing season at Pervomajskoe
MeasureMedian, all yearsEarliest period (1936 to 1974)Recent period (1989 to 2018)Recent against earliestFitted trend
Last spring frost23 May24 May22 May2 days earlier-0.9 days per decade
First autumn frost15 September15 September17 September2 days later+1.0 days per decade
Growing days115 days110 days120 days10 days more+1.9 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

83 years, 1936 to 2018

A day with at least 26.0 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 60.6 mm (2.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Pervomajskoe: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years26.0 mm (1.0 in)
5 years34.2 mm (1.3 in)
10 years40.0 mm (1.6 in)
25 years47.9 mm (1.9 in)
50 years54.1 mm (2.1 in)
100 years60.6 mm (2.4 in)Longer than the 83 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, 83 years of values from 1936 to 2018.

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: 69.2 mm (2.7 in) in 1962; 50.2 mm (2.0 in) in 1938; 48.8 mm (1.9 in) in 2004.

Station Changes

3 suspected

3 changes were suspected in the annual mean temperature of Pervomajskoe, at 1950, 1968 and 1993. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1950 ran 0.2 C (0.4 F) higher than in the years before (possible change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1968 ran 0.2 C (0.4 F) higher than in the years before (likely change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1993 ran 0.2 C (0.3 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Pervomajskoe, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1950+0.2+0.4possible5
1968+0.2+0.4likely5
1993+0.2+0.3likely5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2004 to 2018 against 1961 to 1990

Over 2004 to 2018, Pervomajskoe had a mean temperature of 1.5 C (34.7 F) and 477.7 mm (18.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Minusinsk (Russia, 508 km away), Abakan(Hakasskaja) (Russia, 488 km away) and Turinsk (Russia, 1,341 km away).

Climate twins of Pervomajskoe: 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
MinusinskRussia508 km (316 mi)1.6 C (34.9 F)337.8 mm (13.3 in)0.87
Abakan(Hakasskaja)Russia488 km (303 mi)1.4 C (34.4 F)295.2 mm (11.6 in)1.06
TurinskRussia1,341 km (833 mi)1.2 C (34.2 F)494.6 mm (19.5 in)1.14

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 Pervomajskoe standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Pervomajskoe 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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