Built 2026-10-19 (19 October 2026)

Semjachik Weather Records (RSM00032509)

Record envelope, standing records and threshold days for Semjachik (RSM00032509), Russia, with 90 years of record.

Key Facts for Semjachik

  • Semjachik (RSM00032509) is a weather station in Russia at 54.10 latitude and 159.98 longitude, 28 m (92 ft) above sea level.
  • The station reports from 1936 to 2025, 90 years of record.
  • 1,464 records set at Semjachik still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Semjachik set a daily record high minimum temperature of 14.8 C (58.6 F) on 1 August 2025.

About the Station

  • Location: Russia, 54.10 latitude, 159.98 longitude.
  • Elevation: 28 m (92 ft).
  • Period of record: 1936 to 2025, 90 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

4 days at or beyond a record
Daily record high and record low at Semjachik, with 2026 drawn through them The band shows the record high and record low for each calendar day at Semjachik. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Semjachik. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Semjachik, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan4.5 C (40.1 F)-25.1 C (-13.2 F)0.3 C (32.5 F)-13.8 C (7.2 F)
Feb6.1 C (43.0 F)-24.0 C (-11.2 F)0.8 C (33.4 F)-8.7 C (16.3 F)
Mar8.6 C (47.5 F)-20.5 C (-4.9 F)3.5 C (38.3 F)-12.6 C (9.3 F)
Apr17.4 C (63.3 F)-13.9 C (7.0 F)9.9 C (49.8 F)-6.0 C (21.2 F)
May24.5 C (76.1 F)-8.1 C (17.4 F)16.3 C (61.3 F)-0.1 C (31.8 F)
Jun30.2 C (86.4 F)-1.0 C (30.2 F)22.4 C (72.3 F)2.0 C (35.6 F)
Jul33.6 C (92.5 F)2.5 C (36.5 F)28.6 C (83.5 F)5.2 C (41.4 F)
Aug31.1 C (88.0 F)4.5 C (40.1 F)21.8 C (71.2 F)9.9 C (49.8 F)
Sep26.4 C (79.5 F)-4.5 C (23.9 F)n/an/a
Oct24.5 C (76.1 F)-7.0 C (19.4 F)n/an/a
Nov11.6 C (52.9 F)-15.2 C (4.6 F)n/an/a
Dec10.1 C (50.2 F)-18.0 C (-0.4 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Semjachik by the year they were set 1,464 records at Semjachik still stand. 1954 holds the most, with 43. 02040601936: 31937: 101938: 231939: 171940: 111941: 141942: 321943: 191944: 181945: 141946: 181947: 211948: 171949: 121950: 221951: 121952: 191953: 171954: 431955: 261956: 121957: 141958: 111959: 191960: 111961: 221962: 151963: 251964: 221965: 171969: 151970: 61971: 81973: 181974: 141975: 81976: 241977: 341978: 151979: 311980: 141981: 71982: 131983: 121984: 61985: 331986: 151987: 141988: 251989: 131990: 261991: 261992: 301993: 171994: 221995: 201996: 271997: 171998: 291999: 192000: 152001: 212002: 192003: 212004: 92005: 52006: 262007: 42008: 112009: 132010: 152011: 122012: 122013: 132014: 92015: 212016: 122017: 222018: 82019: 212020: 142021: 192022: 132023: 172024: 72025: 111936194519541963197619851994200320122021
1,464 records at Semjachik still stand. 1954 holds the most, with 43.
Standing records at Semjachik by the year they were set
Year setStanding records
19363
193710
193823
193917
194011
194114
194232
194319
194418
194514
194618
194721
194817
194912
195022
195112
195219
195317
195443
195526
195612
195714
195811
195919
196011
196122
196215
196325
196422
196517
196915
19706
19718
197318
197414
19758
197624
197734
197815
197931
198014
19817
198213
198312
19846
198533
198615
198714
198825
198913
199026
199126
199230
199317
199422
199520
199627
199717
199829
199919
200015
200121
200219
200321
20049
20055
200626
20074
200811
200913
201015
201112
201212
201313
20149
201521
201612
201722
20188
201921
202014
202119
202213
202317
20247
202511

All-Time Record Progression

5 new records
When Semjachik set new all-time records 5 all-time records were set at Semjachik between 28 July 1988 and 6 February 2006. Each dot is a new record. Record high maximum temperatureRecord low maximum temperature28 July 1988: Record high maximum temperature 32.0 C (89.6 F)26 July 1989: Record high maximum temperature 32.1 C (89.8 F)28 July 1989: Record high maximum temperature 33.6 C (92.5 F)14 February 2001: Record low maximum temperature -17.0 C (1.4 F)6 February 2006: Record low maximum temperature -19.5 C (-3.1 F)1990199520002005
5 all-time records were set at Semjachik between 28 July 1988 and 6 February 2006. Each dot is a new record.
When Semjachik set new all-time records
DateKindDetail
1988-07-28Record high maximum temperatureRecord high maximum temperature 32.0 C (89.6 F)
1989-07-26Record high maximum temperatureRecord high maximum temperature 32.1 C (89.8 F)
1989-07-28Record high maximum temperatureRecord high maximum temperature 33.6 C (92.5 F)
2001-02-14Record low maximum temperatureRecord low maximum temperature -17.0 C (1.4 F)
2006-02-06Record low maximum temperatureRecord low maximum temperature -19.5 C (-3.1 F)

Wettest Day of Each Month

Nov: 160.9 mm (6.3 in)
Record daily precipitation for each month at Semjachik The wettest day on record for each calendar month at Semjachik. The most was 160.9 mm (6.3 in) on 30 November 1942. 050100150200 Jan: 89.9 mm (3.5 in), 3 January 1969 Jan Feb: 73.0 mm (2.9 in), 3 February 1980 Feb Mar: 60.9 mm (2.4 in), 19 March 1963 Mar Apr: 97.0 mm (3.8 in), 20 April 2021 Apr May: 116.1 mm (4.6 in), 26 May 2024 May Jun: 77.6 mm (3.1 in), 26 June 1981 Jun Jul: 80.0 mm (3.1 in), 13 July 1976 Jul Aug: 118.9 mm (4.7 in), 3 August 2002 Aug Sep: 109.9 mm (4.3 in), 3 September 1952 Sep Oct: 115.5 mm (4.5 in), 4 October 1981 Oct Nov: 160.9 mm (6.3 in), 30 November 1942 Nov Dec: 135.7 mm (5.3 in), 6 December 1956 Dec
The wettest day on record for each calendar month at Semjachik. The most was 160.9 mm (6.3 in) on 30 November 1942.
Record daily precipitation for each month at Semjachik
MonthRecord daily precipitation (mm)Date
Jan89.9 mm (3.5 in)3 January 1969
Feb73.0 mm (2.9 in)3 February 1980
Mar60.9 mm (2.4 in)19 March 1963
Apr97.0 mm (3.8 in)20 April 2021
May116.1 mm (4.6 in)26 May 2024
Jun77.6 mm (3.1 in)26 June 1981
Jul80.0 mm (3.1 in)13 July 1976
Aug118.9 mm (4.7 in)3 August 2002
Sep109.9 mm (4.3 in)3 September 1952
Oct115.5 mm (4.5 in)4 October 1981
Nov160.9 mm (6.3 in)30 November 1942
Dec135.7 mm (5.3 in)6 December 1956

Period of Record Coverage

1937 to 2025
Days with data per year at Semjachik 85 years of record at Semjachik, 1937 to 2025. 18 years have data for under 90 percent of days and are left out of rankings: 1937, 1969, 1970, 1971, 1975, 1995, 2001, 2005 and others. 1937: 237 of 365 days1938: 346 of 365 days1939: 355 of 365 days1940: 362 of 366 days1941: 358 of 365 days1942: 351 of 365 days1943: 360 of 365 days1944: 350 of 366 days1945: 347 of 365 days1946: 357 of 365 days1947: 348 of 365 days1948: 354 of 366 days1949: 349 of 365 days1950: 353 of 365 days1951: 358 of 365 days1952: 362 of 366 days1953: 345 of 365 days1954: 352 of 365 days1955: 357 of 365 days1956: 352 of 366 days1957: 356 of 365 days1958: 352 of 365 days1959: 353 of 365 days1960: 361 of 366 days1961: 347 of 365 days1962: 343 of 365 days1963: 357 of 365 days1964: 351 of 366 days1965: 360 of 365 days1969: 327 of 365 days1970: 327 of 365 days1971: 168 of 365 days1973: 363 of 365 days1974: 361 of 365 days1975: 275 of 365 days1976: 332 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 363 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: 329 of 365 days1987: 365 of 365 days1988: 365 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 343 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 310 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 355 of 366 days2001: 305 of 365 days2002: 358 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 322 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 280 of 366 days2009: 321 of 365 days2010: 350 of 365 days2011: 343 of 365 days2012: 350 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 294 of 366 days2017: 339 of 365 days2018: 365 of 365 days2019: 314 of 365 days2020: 317 of 366 days2021: 300 of 365 days2022: 308 of 365 days2023: 303 of 365 days2024: 301 of 366 days2025: 200 of 365 days195019651980199520102025
85 years of record at Semjachik, 1937 to 2025. 18 years have data for under 90 percent of days and are left out of rankings: 1937, 1969, 1970, 1971, 1975, 1995, 2001, 2005 and others.
Days with data per year at Semjachik
YearDays with dataShare of yearComplete
193723765%No
193834695%Yes
193935597%Yes
194036299%Yes
194135898%Yes
194235196%Yes
194336099%Yes
194435096%Yes
194534795%Yes
194635798%Yes
194734895%Yes
194835497%Yes
194934996%Yes
195035397%Yes
195135898%Yes
195236299%Yes
195334595%Yes
195435296%Yes
195535798%Yes
195635296%Yes
195735698%Yes
195835296%Yes
195935397%Yes
196036199%Yes
196134795%Yes
196234394%Yes
196335798%Yes
196435196%Yes
196536099%Yes
196932790%No
197032790%No
197116846%No
197336399%Yes
197436199%Yes
197527575%No
197633291%Yes
1977365100%Yes
1978365100%Yes
197936399%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
198632990%Yes
1987365100%Yes
1988365100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
199234394%Yes
1993365100%Yes
1994365100%Yes
199531085%No
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
200035597%Yes
200130584%No
200235898%Yes
2003365100%Yes
2004366100%Yes
200532288%No
2006365100%Yes
2007365100%Yes
200828077%No
200932188%No
201035096%Yes
201134394%Yes
201235096%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
201629480%No
201733993%Yes
2018365100%Yes
201931486%No
202031787%No
202130082%No
202230884%No
202330383%No
202430182%No
202520055%No

Latest Records

20
Latest records at Semjachik
DateStationRecordValueBeat old record byOld record stoodSignificance
1 August 2025Semjachik, RUdaily high min14.8 C (58.6 F)0.3 C (0.5 F)36 years20 of 100 (Routine)
22 July 2025Semjachik, RUdaily rain35.1 mm (1.4 in)4.0 mm (0.16 in)7 years14 of 100 (Routine)
17 July 2025Semjachik, RUdaily high min14.1 C (57.4 F)1.4 C (2.5 F)12 years18 of 100 (Routine)
16 July 2025Semjachik, RUdaily high min15.0 C (59.0 F)1.0 C (1.8 F)63 years31 of 100 (Routine)
16 July 2025Semjachik, RUdaily high max28.6 C (83.5 F)4.0 C (7.2 F)6 years18 of 100 (Routine)
15 July 2025Semjachik, RUdaily high max27.1 C (80.8 F)0.7 C (1.3 F)88 years35 of 100 (Notable)
1 June 2025Semjachik, RUdaily high max22.4 C (72.3 F)1.7 C (3.1 F)76 years34 of 100 (Routine)
1 June 2025Semjachik, RUdaily high min7.2 C (45.0 F)0.4 C (0.7 F)20 years16 of 100 (Routine)
23 April 2025Semjachik, RUdaily rain33.0 mm (1.3 in)10.9 mm (0.4 in)4 years19 of 100 (Routine)
19 April 2025Semjachik, RUdaily high min2.8 C (37.0 F)1.8 C (3.2 F)8 years17 of 100 (Routine)
19 April 2025Semjachik, RUdaily high max9.9 C (49.8 F)1.6 C (2.9 F)4 years14 of 100 (Routine)
11 April 2025Semjachik, RUdaily high min0.4 C (32.7 F)0.4 C (0.7 F)28 years18 of 100 (Routine)
28 March 2025Semjachik, RUdaily rain41.9 mm (1.6 in)20.8 mm (0.8 in)54 years47 of 100 (Notable)
24 March 2025Semjachik, RUdaily rain26.9 mm (1.1 in)5.4 mm (0.21 in)12 years17 of 100 (Routine)
15 February 2025Semjachik, RUdaily rain24.9 mm (1.0 in)1.9 mm (0.07 in)64 years20 of 100 (Routine)
3 January 2025Semjachik, RUdaily high min1.0 C (33.8 F)0.2 C (0.4 F)16 years13 of 100 (Routine)
18 December 2024Semjachik, RUdaily high min0.7 C (33.3 F)0.8 C (1.4 F)69 years30 of 100 (Routine)
2 December 2024Semjachik, RUdaily high min1.7 C (35.1 F)0.5 C (0.9 F)29 years17 of 100 (Routine)
27 November 2024Semjachik, RUdaily high max (Tie)4.5 C (40.1 F)tie29 years4 of 100 (Routine)
25 October 2024Semjachik, RUdaily high max12.3 C (54.1 F)1.3 C (2.3 F)19 years17 of 100 (Routine)

Climate Trend

63 complete years, 1938 to 2020
Annual mean temperature at Semjachik as warming stripes, 1938 to 2020 One stripe for each of 63 complete years at Semjachik, 1938 to 2020. Blue stripes are years cooler than the station's own mean of 2.4 C (36.4 F); red stripes are warmer. The coolest year was 1985, at 1.3 C (34.4 F), and the warmest was 1996, at 3.7 C (38.7 F). The strongest colour marks a difference of 1.3 C (2.3 F). 1938: 2.7 C, +0.3 C from the station mean1939: 2.8 C, +0.3 C from the station mean1940: 2.6 C, +0.1 C from the station mean1941: 1.7 C, -0.7 C from the station mean1942: 2.0 C, -0.4 C from the station mean1943: 3.5 C, +1.0 C from the station mean1944: 2.2 C, -0.2 C from the station mean1945: 1.9 C, -0.6 C from the station mean1946: 2.0 C, -0.5 C from the station mean1947: 2.0 C, -0.4 C from the station mean1948: 2.8 C, +0.4 C from the station mean1949: 1.7 C, -0.8 C from the station mean1950: 2.6 C, +0.2 C from the station mean1951: 2.1 C, -0.3 C from the station mean1952: 1.5 C, -0.9 C from the station mean1953: 1.4 C, -1.0 C from the station mean1954: 1.6 C, -0.9 C from the station mean1955: 2.0 C, -0.5 C from the station mean1956: 2.5 C, +0.1 C from the station mean1957: 2.0 C, -0.4 C from the station mean1958: 1.5 C, -0.9 C from the station mean1959: 2.5 C, 0.0 C from the station mean1960: 1.8 C, -0.7 C from the station mean1961: 2.8 C, +0.4 C from the station mean1962: 2.9 C, +0.5 C from the station mean1963: 3.5 C, +1.1 C from the station mean1964: 1.7 C, -0.7 C from the station mean1965: 2.0 C, -0.4 C from the station mean1969: 1.6 C, -0.9 C from the station mean1970: 2.5 C, 0.0 C from the station mean1973: 1.9 C, -0.5 C from the station mean1974: 2.3 C, -0.2 C from the station mean1976: 1.6 C, -0.9 C from the station mean1977: 1.4 C, -1.0 C from the station mean1978: 2.3 C, -0.1 C from the station mean1979: 2.2 C, -0.3 C from the station mean1980: 2.4 C, -0.1 C from the station mean1981: 2.5 C, +0.1 C from the station mean1982: 2.3 C, -0.1 C from the station mean1983: 2.6 C, +0.2 C from the station mean1984: 2.6 C, +0.2 C from the station mean1985: 1.3 C, -1.1 C from the station mean1987: 2.0 C, -0.5 C from the station mean1988: 2.5 C, 0.0 C from the station mean1989: 2.9 C, +0.4 C from the station mean1990: 3.1 C, +0.7 C from the station mean1991: 2.7 C, +0.3 C from the station mean1993: 2.2 C, -0.2 C from the station mean1994: 2.7 C, +0.3 C from the station mean1996: 3.7 C, +1.3 C from the station mean1997: 3.1 C, +0.7 C from the station mean1998: 2.4 C, 0.0 C from the station mean1999: 2.5 C, +0.1 C from the station mean2003: 3.3 C, +0.8 C from the station mean2004: 3.3 C, +0.8 C from the station mean2006: 2.9 C, +0.5 C from the station mean2007: 2.8 C, +0.4 C from the station mean2013: 3.4 C, +1.0 C from the station mean2014: 3.3 C, +0.8 C from the station mean2015: 3.1 C, +0.7 C from the station mean2018: 3.4 C, +1.0 C from the station mean2019: 2.9 C, +0.5 C from the station mean2020: 3.6 C, +1.2 C from the station mean193819501960197019801990200020102020
One stripe for each of 63 complete years at Semjachik, 1938 to 2020. Blue stripes are years cooler than the station's own mean of 2.4 C (36.4 F); red stripes are warmer. The coolest year was 1985, at 1.3 C (34.4 F), and the warmest was 1996, at 3.7 C (38.7 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Semjachik as warming stripes, 1938 to 2020
YearAnnual mean temperatureDifference from the station mean
19382.7 C+0.29 C
19392.8 C+0.33 C
19402.6 C+0.15 C
19411.7 C-0.73 C
19422.0 C-0.41 C
19433.5 C+1.02 C
19442.2 C-0.21 C
19451.9 C-0.58 C
19462.0 C-0.46 C
19472.0 C-0.44 C
19482.8 C+0.41 C
19491.7 C-0.77 C
19502.6 C+0.17 C
19512.1 C-0.30 C
19521.5 C-0.92 C
19531.4 C-1.02 C
19541.6 C-0.86 C
19552.0 C-0.46 C
19562.5 C+0.11 C
19572.0 C-0.44 C
19581.5 C-0.90 C
19592.5 C+0.05 C
19601.8 C-0.68 C
19612.8 C+0.40 C
19622.9 C+0.49 C
19633.5 C+1.09 C
19641.7 C-0.73 C
19652.0 C-0.44 C
19691.6 C-0.86 C
19702.5 C+0.04 C
19731.9 C-0.51 C
19742.3 C-0.18 C
19761.6 C-0.88 C
19771.4 C-1.04 C
19782.3 C-0.09 C
19792.2 C-0.28 C
19802.4 C-0.07 C
19812.5 C+0.11 C
19822.3 C-0.10 C
19832.6 C+0.18 C
19842.6 C+0.16 C
19851.3 C-1.12 C
19872.0 C-0.46 C
19882.5 C+0.02 C
19892.9 C+0.45 C
19903.1 C+0.69 C
19912.7 C+0.31 C
19932.2 C-0.21 C
19942.7 C+0.27 C
19963.7 C+1.27 C
19973.1 C+0.67 C
19982.4 C-0.03 C
19992.5 C+0.08 C
20033.3 C+0.83 C
20043.3 C+0.83 C
20062.9 C+0.47 C
20072.8 C+0.41 C
20133.4 C+1.00 C
20143.3 C+0.84 C
20153.1 C+0.67 C
20183.4 C+1.01 C
20192.9 C+0.48 C
20203.6 C+1.18 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1938 to 2020. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 63 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Semjachik
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.3) per decade1938 to 202063Rise
Mean daily maximum0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.3) per decade1938 to 202063Rise
Mean daily minimum0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.4) per decade1938 to 202063Rise

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 Semjachik: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)33.6 C (92.5 F)198926.5 C (79.7 F)85
Coldest night (TNn)-25.1 C (-13.2 F)1954-16.6 C (2.0 F)86
Wettest day (Rx1day)160.9 mm (6.3 in)194263.1 mm (2.5 in)85
Wettest five days (Rx5day)285.8 mm (11.3 in)1942118.5 mm (4.7 in)85
Longest dry spell (CDD)42 days201918 days85

Hottest day (TXx)

Hottest day (TXx) at Semjachik by year The hottest day of the year at Semjachik, 1936 to 2025. The record is 33.6 C (92.5 F) in 1989, marked on the chart; the median year is 26.5 C (79.7 F). 152025303519401960198020002020Record: 33.6 C (92.5 F) in 1989
The hottest day of the year at Semjachik, 1936 to 2025. The record is 33.6 C (92.5 F) in 1989, marked on the chart; the median year is 26.5 C (79.7 F).
Hottest day (TXx) at Semjachik by year
YearHottest day (TXx)
1936n/a
193726.8 C (80.2 F)
193827.9 C (82.2 F)
193929.0 C (84.2 F)
194026.4 C (79.5 F)
194125.0 C (77.0 F)
194224.0 C (75.2 F)
194327.5 C (81.5 F)
194425.7 C (78.3 F)
194527.3 C (81.1 F)
194630.7 C (87.3 F)
194725.0 C (77.0 F)
194829.2 C (84.6 F)
194926.7 C (80.1 F)
195024.5 C (76.1 F)
195127.9 C (82.2 F)
195226.7 C (80.1 F)
195325.6 C (78.1 F)
195425.4 C (77.7 F)
195526.7 C (80.1 F)
195624.5 C (76.1 F)
195724.4 C (75.9 F)
195825.2 C (77.4 F)
195930.1 C (86.2 F)
196026.0 C (78.8 F)
196129.4 C (84.9 F)
196227.1 C (80.8 F)
196326.5 C (79.7 F)
196424.9 C (76.8 F)
196525.6 C (78.1 F)
196928.9 C (84.0 F)
197030.0 C (86.0 F)
197121.1 C (70.0 F)
197326.8 C (80.2 F)
197422.2 C (72.0 F)
197529.3 C (84.7 F)
197626.0 C (78.8 F)
197724.3 C (75.7 F)
197829.6 C (85.3 F)
197925.6 C (78.1 F)
198029.0 C (84.2 F)
198126.6 C (79.9 F)
198224.7 C (76.5 F)
198327.5 C (81.5 F)
198428.3 C (82.9 F)
198519.6 C (67.3 F)
198625.2 C (77.4 F)
198726.5 C (79.7 F)
198832.0 C (89.6 F)
198933.6 C (92.5 F)
199022.7 C (72.9 F)
199126.7 C (80.1 F)
199226.7 C (80.1 F)
199324.1 C (75.4 F)
199427.7 C (81.9 F)
199521.9 C (71.4 F)
199627.5 C (81.5 F)
199724.9 C (76.8 F)
199830.2 C (86.4 F)
199932.4 C (90.3 F)
200021.5 C (70.7 F)
200121.5 C (70.7 F)
200222.7 C (72.9 F)
200329.7 C (85.5 F)
200426.3 C (79.3 F)
200522.2 C (72.0 F)
200626.6 C (79.9 F)
200723.6 C (74.5 F)
200833.2 C (91.8 F)
200929.5 C (85.1 F)
201025.3 C (77.5 F)
201124.5 C (76.1 F)
201232.6 C (90.7 F)
201329.8 C (85.6 F)
201424.1 C (75.4 F)
201523.9 C (75.0 F)
201629.0 C (84.2 F)
201728.2 C (82.8 F)
201824.2 C (75.6 F)
201924.9 C (76.8 F)
202023.8 C (74.8 F)
202128.5 C (83.3 F)
202226.5 C (79.7 F)
202326.6 C (79.9 F)
202424.7 C (76.5 F)
202528.6 C (83.5 F)

Coldest night (TNn)

Coldest night (TNn) at Semjachik by year The coldest night of the year at Semjachik, 1936 to 2025. The record is -25.1 C (-13.2 F) in 1954, marked on the chart; the median year is -16.6 C (2.0 F). -30-25-20-15-1019401960198020002020Record: -25.1 C (-13.2 F) in 1954
The coldest night of the year at Semjachik, 1936 to 2025. The record is -25.1 C (-13.2 F) in 1954, marked on the chart; the median year is -16.6 C (2.0 F).
Coldest night (TNn) at Semjachik by year
YearColdest night (TNn)
1936-13.7 C (7.3 F)
1937-18.4 C (-1.1 F)
1938-15.6 C (3.9 F)
1939-15.5 C (4.1 F)
1940-17.1 C (1.2 F)
1941-16.4 C (2.5 F)
1942-17.6 C (0.3 F)
1943-15.2 C (4.6 F)
1944-17.2 C (1.0 F)
1945-15.0 C (5.0 F)
1946-18.4 C (-1.1 F)
1947-16.4 C (2.5 F)
1948-19.9 C (-3.8 F)
1949-17.5 C (0.5 F)
1950-15.4 C (4.3 F)
1951-17.7 C (0.1 F)
1952-16.8 C (1.8 F)
1953-16.8 C (1.8 F)
1954-25.1 C (-13.2 F)
1955-15.9 C (3.4 F)
1956-17.2 C (1.0 F)
1957-20.2 C (-4.4 F)
1958-16.0 C (3.2 F)
1959-17.6 C (0.3 F)
1960-17.8 C (0.0 F)
1961-11.8 C (10.8 F)
1962-14.5 C (5.9 F)
1963-12.1 C (10.2 F)
1964-17.7 C (0.1 F)
1965-17.2 C (1.0 F)
1969-20.0 C (-4.0 F)
1970-16.1 C (3.0 F)
1971-17.2 C (1.0 F)
1973-20.1 C (-4.2 F)
1974-15.6 C (3.9 F)
1975-16.0 C (3.2 F)
1976-19.0 C (-2.2 F)
1977-19.8 C (-3.6 F)
1978-21.8 C (-7.2 F)
1979-18.6 C (-1.5 F)
1980-18.9 C (-2.0 F)
1981-17.3 C (0.9 F)
1982-15.7 C (3.7 F)
1983-13.8 C (7.2 F)
1984-15.2 C (4.6 F)
1985-20.2 C (-4.4 F)
1986-15.3 C (4.5 F)
1987-15.0 C (5.0 F)
1988-18.2 C (-0.8 F)
1989-17.5 C (0.5 F)
1990-19.3 C (-2.7 F)
1991-13.7 C (7.3 F)
1992-17.6 C (0.3 F)
1993-15.2 C (4.6 F)
1994-18.0 C (-0.4 F)
1995-18.8 C (-1.8 F)
1996-15.7 C (3.7 F)
1997-14.8 C (5.4 F)
1998-16.4 C (2.5 F)
1999-17.8 C (0.0 F)
2000-21.7 C (-7.1 F)
2001-25.1 C (-13.2 F)
2002-16.8 C (1.8 F)
2003-16.0 C (3.2 F)
2004-12.2 C (10.0 F)
2005-15.8 C (3.6 F)
2006-24.0 C (-11.2 F)
2007-16.9 C (1.6 F)
2008-14.0 C (6.8 F)
2009-14.5 C (5.9 F)
2010-16.2 C (2.8 F)
2011-19.1 C (-2.4 F)
2012-17.2 C (1.0 F)
2013-14.2 C (6.4 F)
2014-16.5 C (2.3 F)
2015-14.3 C (6.3 F)
2016-14.5 C (5.9 F)
2017-13.6 C (7.5 F)
2018-14.3 C (6.3 F)
2019-15.3 C (4.5 F)
2020-18.0 C (-0.4 F)
2021-18.7 C (-1.7 F)
2022-11.7 C (10.9 F)
2023-15.3 C (4.5 F)
2024-14.8 C (5.4 F)
2025-13.8 C (7.2 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Semjachik by year The wettest day of the year at Semjachik, 1936 to 2025. The record is 160.9 mm (6.3 in) in 1942, marked on the chart; the median year is 63.1 mm (2.5 in). 05010015020019401960198020002020Record: 160.9 mm (6.3 in) in 1942
The wettest day of the year at Semjachik, 1936 to 2025. The record is 160.9 mm (6.3 in) in 1942, marked on the chart; the median year is 63.1 mm (2.5 in).
Wettest day (Rx1day) at Semjachik by year
YearWettest day (Rx1day)
193686.8 mm (3.4 in)
193774.7 mm (2.9 in)
193872.2 mm (2.8 in)
193948.2 mm (1.9 in)
194064.1 mm (2.5 in)
194148.9 mm (1.9 in)
1942160.9 mm (6.3 in)
194370.0 mm (2.8 in)
1944110.7 mm (4.4 in)
194569.2 mm (2.7 in)
1946105.7 mm (4.2 in)
194734.4 mm (1.4 in)
194847.0 mm (1.9 in)
194936.7 mm (1.4 in)
195051.3 mm (2.0 in)
195155.0 mm (2.2 in)
1952109.9 mm (4.3 in)
195379.5 mm (3.1 in)
195490.9 mm (3.6 in)
1955112.3 mm (4.4 in)
1956135.7 mm (5.3 in)
195747.1 mm (1.9 in)
195853.4 mm (2.1 in)
195980.7 mm (3.2 in)
196068.7 mm (2.7 in)
196158.6 mm (2.3 in)
196259.0 mm (2.3 in)
196372.5 mm (2.9 in)
1964124.1 mm (4.9 in)
196572.3 mm (2.8 in)
196989.9 mm (3.5 in)
197061.0 mm (2.4 in)
197155.1 mm (2.2 in)
197375.3 mm (3.0 in)
197463.1 mm (2.5 in)
197555.3 mm (2.2 in)
197680.0 mm (3.1 in)
1977103.6 mm (4.1 in)
197869.8 mm (2.7 in)
197959.7 mm (2.4 in)
198083.2 mm (3.3 in)
1981115.5 mm (4.5 in)
198242.8 mm (1.7 in)
198357.7 mm (2.3 in)
198478.3 mm (3.1 in)
198560.1 mm (2.4 in)
198699.4 mm (3.9 in)
198746.8 mm (1.8 in)
198879.9 mm (3.1 in)
198975.9 mm (3.0 in)
199062.6 mm (2.5 in)
199176.7 mm (3.0 in)
199253.9 mm (2.1 in)
199362.6 mm (2.5 in)
199454.3 mm (2.1 in)
199574.3 mm (2.9 in)
199659.6 mm (2.3 in)
1997104.0 mm (4.1 in)
199839.5 mm (1.6 in)
199968.8 mm (2.7 in)
200050.3 mm (2.0 in)
2001n/a
2002118.9 mm (4.7 in)
200338.4 mm (1.5 in)
200460.9 mm (2.4 in)
200554.3 mm (2.1 in)
200640.5 mm (1.6 in)
200760.9 mm (2.4 in)
200835.7 mm (1.4 in)
200946.1 mm (1.8 in)
201046.9 mm (1.8 in)
201161.4 mm (2.4 in)
201245.2 mm (1.8 in)
201368.4 mm (2.7 in)
201479.4 mm (3.1 in)
201558.6 mm (2.3 in)
201682.2 mm (3.2 in)
201745.5 mm (1.8 in)
201870.2 mm (2.8 in)
201949.0 mm (1.9 in)
202049.0 mm (1.9 in)
202197.0 mm (3.8 in)
202254.1 mm (2.1 in)
202379.0 mm (3.1 in)
2024116.1 mm (4.6 in)
202549.0 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Semjachik by year The wettest five days of the year at Semjachik, 1936 to 2025. The record is 285.8 mm (11.3 in) in 1942, marked on the chart; the median year is 118.5 mm (4.7 in). 010020030019401960198020002020Record: 285.8 mm (11.3 in) in 1942
The wettest five days of the year at Semjachik, 1936 to 2025. The record is 285.8 mm (11.3 in) in 1942, marked on the chart; the median year is 118.5 mm (4.7 in).
Wettest five days (Rx5day) at Semjachik by year
YearWettest five days (Rx5day)
1936172.9 mm (6.8 in)
193775.8 mm (3.0 in)
193880.7 mm (3.2 in)
1939107.3 mm (4.2 in)
1940135.7 mm (5.3 in)
194174.4 mm (2.9 in)
1942285.8 mm (11.3 in)
1943120.1 mm (4.7 in)
1944127.0 mm (5.0 in)
1945108.0 mm (4.3 in)
1946227.0 mm (8.9 in)
194777.1 mm (3.0 in)
194876.0 mm (3.0 in)
194979.0 mm (3.1 in)
195079.6 mm (3.1 in)
1951103.0 mm (4.1 in)
1952165.6 mm (6.5 in)
1953128.2 mm (5.0 in)
1954169.9 mm (6.7 in)
1955266.5 mm (10.5 in)
1956143.8 mm (5.7 in)
1957116.1 mm (4.6 in)
195864.8 mm (2.6 in)
1959109.6 mm (4.3 in)
1960103.3 mm (4.1 in)
1961167.3 mm (6.6 in)
1962152.0 mm (6.0 in)
1963155.1 mm (6.1 in)
1964212.1 mm (8.4 in)
1965150.2 mm (5.9 in)
1969118.1 mm (4.6 in)
197095.5 mm (3.8 in)
1971154.0 mm (6.1 in)
1973116.4 mm (4.6 in)
1974158.1 mm (6.2 in)
1975107.6 mm (4.2 in)
1976130.1 mm (5.1 in)
1977265.0 mm (10.4 in)
197872.7 mm (2.9 in)
197998.9 mm (3.9 in)
1980225.6 mm (8.9 in)
1981229.6 mm (9.0 in)
198273.9 mm (2.9 in)
198391.4 mm (3.6 in)
1984121.6 mm (4.8 in)
1985118.5 mm (4.7 in)
1986153.3 mm (6.0 in)
1987101.4 mm (4.0 in)
1988129.4 mm (5.1 in)
198983.3 mm (3.3 in)
1990228.4 mm (9.0 in)
1991149.1 mm (5.9 in)
1992117.6 mm (4.6 in)
199386.5 mm (3.4 in)
1994140.6 mm (5.5 in)
1995210.6 mm (8.3 in)
1996168.8 mm (6.6 in)
1997171.3 mm (6.7 in)
199877.1 mm (3.0 in)
1999237.8 mm (9.4 in)
2000117.8 mm (4.6 in)
2001n/a
2002242.7 mm (9.6 in)
200382.3 mm (3.2 in)
200491.8 mm (3.6 in)
2005114.0 mm (4.5 in)
2006105.5 mm (4.2 in)
2007128.6 mm (5.1 in)
200876.8 mm (3.0 in)
200982.6 mm (3.3 in)
201097.0 mm (3.8 in)
2011144.9 mm (5.7 in)
201298.8 mm (3.9 in)
2013141.3 mm (5.6 in)
2014189.0 mm (7.4 in)
2015125.3 mm (4.9 in)
2016120.6 mm (4.7 in)
2017104.7 mm (4.1 in)
2018191.1 mm (7.5 in)
201971.0 mm (2.8 in)
202077.4 mm (3.0 in)
2021147.1 mm (5.8 in)
202287.9 mm (3.5 in)
202397.8 mm (3.9 in)
2024136.2 mm (5.4 in)
202582.0 mm (3.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Semjachik by year The longest dry spell of the year at Semjachik, 1936 to 2025. The record is 42 days in 2019, marked on the chart; the median year is 18 days. 0102030405019401960198020002020Record: 42 days in 2019
The longest dry spell of the year at Semjachik, 1936 to 2025. The record is 42 days in 2019, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Semjachik by year
YearLongest dry spell (CDD)
193626 days
193716 days
193812 days
193924 days
194015 days
194125 days
194216 days
194323 days
194414 days
194517 days
194626 days
194718 days
194817 days
194918 days
195018 days
195117 days
195226 days
195327 days
195419 days
195516 days
195614 days
195715 days
195823 days
195924 days
196023 days
196112 days
196220 days
196317 days
196418 days
196513 days
196914 days
197019 days
19719 days
197315 days
197416 days
197519 days
197611 days
197718 days
197827 days
197918 days
198019 days
198129 days
198221 days
198314 days
198417 days
198524 days
198616 days
198717 days
198816 days
198925 days
199019 days
199120 days
199224 days
199324 days
199419 days
199513 days
199617 days
199722 days
199828 days
199915 days
200021 days
2001n/a
200218 days
200324 days
200416 days
200510 days
200622 days
200717 days
20088 days
200923 days
201016 days
201116 days
201219 days
201317 days
201425 days
201516 days
201619 days
201718 days
201818 days
201942 days
202020 days
202116 days
202224 days
202315 days
202412 days
202513 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

63 years with a frost

Across 63 years with a frost, the median last spring frost at Semjachik falls on 20 May and the median first autumn frost on 18 October, which leaves a median of 150 days between them.

In 1977 to 2020 the median growing season was 155 days. That is 7 days more than in 1938 to 1970.

Fitted over all years, the growing season changes by +1.8 days per decade at this station.

Frost dates and growing season at Semjachik
MeasureMedian, all yearsEarliest period (1938 to 1970)Recent period (1977 to 2020)Recent against earliestFitted trend
Last spring frost20 May23 May19 May4 days earlier-1.0 days per decade
First autumn frost18 October17 October21 October4 days later+0.8 days per decade
Growing days150 days148 days155 days7 days more+1.8 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

67 years, 1936 to 2023

A day with at least 66.3 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 160.0 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Semjachik: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years66.3 mm (2.6 in)
5 years88.6 mm (3.5 in)
10 years104.5 mm (4.1 in)
25 years125.8 mm (5.0 in)
50 years142.5 mm (5.6 in)
100 years160.0 mm (6.3 in)Longer than the 67 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, 67 years of values from 1936 to 2023.

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: 160.9 mm (6.3 in) in 1942; 135.7 mm (5.3 in) in 1956; 124.1 mm (4.9 in) in 1964.

Station Changes

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

Download the Data

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