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Built 2026-10-19 (19 October 2026)

Hyesan Weather Records (KNM00047016)

Record envelope, standing records and threshold days for Hyesan (KNM00047016), Korea, North, with 69 years of record.

Key Facts for Hyesan

  • Hyesan (KNM00047016) is a weather station in Korea, North at 41.40 latitude and 128.17 longitude, 714 m (2,343 ft) above sea level.
  • The station reports from 1957 to 2025, 69 years of record.
  • 1,464 records set at Hyesan still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Hyesan set a daily record high maximum temperature of 30.5 C (86.9 F) on 23 August 2025.

About the Station

  • Location: Korea, North, 41.40 latitude, 128.17 longitude.
  • Elevation: 714 m (2,343 ft).
  • Period of record: 1957 to 2025, 69 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

2 days at or beyond a record
Daily record high and record low at Hyesan, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hyesan. The lines show the 2026 daily maximum and minimum. 2 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 Hyesan. 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 Hyesan, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan6.1 C (43.0 F)-37.2 C (-35.0 F)n/a-26.8 C (-16.2 F)
Feb12.1 C (53.8 F)-33.0 C (-27.4 F)n/a-28.0 C (-18.4 F)
Mar20.6 C (69.1 F)-27.8 C (-18.0 F)n/a-19.0 C (-2.2 F)
Apr30.0 C (86.0 F)-20.0 C (-4.0 F)n/a-6.0 C (21.2 F)
May35.0 C (95.0 F)-4.3 C (24.3 F)n/a-0.8 C (30.6 F)
Jun34.0 C (93.2 F)-1.7 C (28.9 F)30.5 C (86.9 F)7.2 C (45.0 F)
Jul37.1 C (98.8 F)6.5 C (43.7 F)30.5 C (86.9 F)13.9 C (57.0 F)
Aug39.7 C (103.5 F)1.0 C (33.8 F)30.5 C (86.9 F)11.5 C (52.7 F)
Sep31.6 C (88.9 F)-4.3 C (24.3 F)n/an/a
Oct28.5 C (83.3 F)-19.9 C (-3.8 F)n/an/a
Nov19.0 C (66.2 F)-26.6 C (-15.9 F)n/an/a
Dec8.2 C (46.8 F)-35.0 C (-31.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Hyesan by the year they were set 1,464 records at Hyesan still stand. 1998 holds the most, with 43. 02040601957: 221958: 261959: 221960: 301961: 191962: 191963: 101964: 201965: 281966: 261967: 221968: 201969: 311970: 281971: 141973: 251974: 191975: 171976: 321977: 381978: 231979: 261980: 361981: 321982: 211983: 101984: 191985: 131986: 141987: 391988: 141989: 211990: 291991: 181992: 251993: 221994: 261995: 171996: 211997: 221998: 431999: 252000: 182001: 172002: 252003: 212004: 172005: 172006: 122007: 182008: 252009: 312010: 342011: 162012: 82013: 152014: 192015: 242016: 242017: 112018: 162019: 122020: 262021: 192022: 142023: 192024: 152025: 71957196419711979198619932000200720142021
1,464 records at Hyesan still stand. 1998 holds the most, with 43.
Standing records at Hyesan by the year they were set
Year setStanding records
195722
195826
195922
196030
196119
196219
196310
196420
196528
196626
196722
196820
196931
197028
197114
197325
197419
197517
197632
197738
197823
197926
198036
198132
198221
198310
198419
198513
198614
198739
198814
198921
199029
199118
199225
199322
199426
199517
199621
199722
199843
199925
200018
200117
200225
200321
200417
200517
200612
200718
200825
200931
201034
201116
20128
201315
201419
201524
201624
201711
201816
201912
202026
202119
202214
202319
202415
20257

All-Time Record Progression

4 new records
When Hyesan set new all-time records 4 all-time records were set at Hyesan between 24 July 1997 and 26 July 2018. Each dot is a new record. Record high maximum temperatureRecord high minimum temperature24 July 1997: Record high maximum temperature 37.1 C (98.8 F)5 August 2010: Record high minimum temperature 21.5 C (70.7 F)5 August 2016: Record high maximum temperature 39.7 C (103.5 F)26 July 2018: Record high minimum temperature 22.5 C (72.5 F)2000200520102015
4 all-time records were set at Hyesan between 24 July 1997 and 26 July 2018. Each dot is a new record.
When Hyesan set new all-time records
DateKindDetail
1997-07-24Record high maximum temperatureRecord high maximum temperature 37.1 C (98.8 F)
2010-08-05Record high minimum temperatureRecord high minimum temperature 21.5 C (70.7 F)
2016-08-05Record high maximum temperatureRecord high maximum temperature 39.7 C (103.5 F)
2018-07-26Record high minimum temperatureRecord high minimum temperature 22.5 C (72.5 F)

Wettest Day of Each Month

Jun: 131.1 mm (5.2 in)
Record daily precipitation for each month at Hyesan The wettest day on record for each calendar month at Hyesan. The most was 131.1 mm (5.2 in) on 27 June 2005. 050100150 Jan: 9.9 mm (0.39 in), 5 January 1997 Jan Feb: 21.8 mm (0.9 in), 13 February 2009 Feb Mar: 20.1 mm (0.8 in), 17 March 2004 Mar Apr: 58.9 mm (2.3 in), 30 April 1985 Apr May: 104.9 mm (4.1 in), 19 May 1990 May Jun: 131.1 mm (5.2 in), 27 June 2005 Jun Jul: 104.1 mm (4.1 in), 23 July 1994 Jul Aug: 94.0 mm (3.7 in), 15 August 2022 Aug Sep: 86.1 mm (3.4 in), 2 September 1990 Sep Oct: 39.1 mm (1.5 in), 3 October 2010 Oct Nov: 39.9 mm (1.6 in), 27 November 1992 Nov Dec: 23.1 mm (0.9 in), 22 December 2016 Dec
The wettest day on record for each calendar month at Hyesan. The most was 131.1 mm (5.2 in) on 27 June 2005.
Record daily precipitation for each month at Hyesan
MonthRecord daily precipitation (mm)Date
Jan9.9 mm (0.39 in)5 January 1997
Feb21.8 mm (0.9 in)13 February 2009
Mar20.1 mm (0.8 in)17 March 2004
Apr58.9 mm (2.3 in)30 April 1985
May104.9 mm (4.1 in)19 May 1990
Jun131.1 mm (5.2 in)27 June 2005
Jul104.1 mm (4.1 in)23 July 1994
Aug94.0 mm (3.7 in)15 August 2022
Sep86.1 mm (3.4 in)2 September 1990
Oct39.1 mm (1.5 in)3 October 2010
Nov39.9 mm (1.6 in)27 November 1992
Dec23.1 mm (0.9 in)22 December 2016

Period of Record Coverage

1957 to 2025
Days with data per year at Hyesan 68 years of record at Hyesan, 1957 to 2025. 39 years have data for under 90 percent of days and are left out of rankings: 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964 and others. 1957: 146 of 365 days1958: 224 of 365 days1959: 310 of 365 days1960: 302 of 366 days1961: 303 of 365 days1962: 294 of 365 days1963: 277 of 365 days1964: 317 of 366 days1965: 298 of 365 days1966: 299 of 365 days1967: 246 of 365 days1968: 290 of 366 days1969: 310 of 365 days1970: 338 of 365 days1971: 236 of 365 days1973: 291 of 365 days1974: 302 of 365 days1975: 305 of 365 days1976: 306 of 366 days1977: 326 of 365 days1978: 353 of 365 days1979: 353 of 365 days1980: 340 of 366 days1981: 348 of 365 days1982: 327 of 365 days1983: 337 of 365 days1984: 325 of 366 days1985: 339 of 365 days1986: 342 of 365 days1987: 331 of 365 days1988: 337 of 366 days1989: 336 of 365 days1990: 336 of 365 days1991: 336 of 365 days1992: 348 of 366 days1993: 353 of 365 days1994: 349 of 365 days1995: 342 of 365 days1996: 344 of 366 days1997: 329 of 365 days1998: 323 of 365 days1999: 326 of 365 days2000: 323 of 366 days2001: 344 of 365 days2002: 305 of 365 days2003: 327 of 365 days2004: 307 of 366 days2005: 284 of 365 days2006: 292 of 365 days2007: 288 of 365 days2008: 349 of 366 days2009: 338 of 365 days2010: 357 of 365 days2011: 354 of 365 days2012: 362 of 366 days2013: 359 of 365 days2014: 363 of 365 days2015: 310 of 365 days2016: 363 of 366 days2017: 74 of 365 days2018: 44 of 365 days2019: 70 of 365 days2020: 356 of 366 days2021: 192 of 365 days2022: 158 of 365 days2023: 10 of 365 days2024: 3 of 366 days2025: 4 of 365 days1960197019801990200020102020
68 years of record at Hyesan, 1957 to 2025. 39 years have data for under 90 percent of days and are left out of rankings: 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964 and others.
Days with data per year at Hyesan
YearDays with dataShare of yearComplete
195714640%No
195822461%No
195931085%No
196030283%No
196130383%No
196229481%No
196327776%No
196431787%No
196529882%No
196629982%No
196724667%No
196829079%No
196931085%No
197033893%Yes
197123665%No
197329180%No
197430283%No
197530584%No
197630684%No
197732689%No
197835397%Yes
197935397%Yes
198034093%Yes
198134895%Yes
198232790%No
198333792%Yes
198432589%No
198533993%Yes
198634294%Yes
198733191%Yes
198833792%Yes
198933692%Yes
199033692%Yes
199133692%Yes
199234895%Yes
199335397%Yes
199434996%Yes
199534294%Yes
199634494%Yes
199732990%Yes
199832388%No
199932689%No
200032388%No
200134494%Yes
200230584%No
200332790%No
200430784%No
200528478%No
200629280%No
200728879%No
200834995%Yes
200933893%Yes
201035798%Yes
201135497%Yes
201236299%Yes
201335998%Yes
201436399%Yes
201531085%No
201636399%Yes
20177420%No
20184412%No
20197019%No
202035697%Yes
202119253%No
202215843%No
2023103%No
202431%No
202541%No

Latest Records

20
Latest records at Hyesan
DateStationRecordValueBeat old record byOld record stoodSignificance
23 August 2025Hyesan, KPdaily high max30.5 C (86.9 F)0.2 C (0.4 F)31 years15 of 100 (Routine)
23 August 2025Hyesan, KPdaily high min18.5 C (65.3 F)1.6 C (2.9 F)2 years10 of 100 (Routine)
20 July 2025Hyesan, KPdaily high min20.4 C (68.7 F)0.2 C (0.4 F)4 years7 of 100 (Routine)
19 July 2025Hyesan, KPdaily high min20.5 C (68.9 F)0.4 C (0.7 F)31 years16 of 100 (Routine)
30 June 2025Hyesan, KPmonthly high min19.5 C (67.1 F)1.0 C (1.8 F)3 years19 of 100 (Routine)
29 June 2025Hyesan, KPdaily high min18.4 C (65.1 F)0.2 C (0.4 F)27 years14 of 100 (Routine)
29 April 2025Hyesan, KPdaily low min-3.0 C (26.6 F)0.2 C (0.4 F)60 years24 of 100 (Routine)
22 October 2024Hyesan, KPdaily high min3.8 C (38.8 F)1.2 C (2.2 F)16 years12 of 100 (Routine)
14 October 2024Hyesan, KPdaily high min9.4 C (48.9 F)1.6 C (2.9 F)29 years17 of 100 (Routine)
13 September 2024Hyesan, KPdaily high min17.0 C (62.6 F)3.6 C (6.5 F)21 years20 of 100 (Routine)
12 September 2024Hyesan, KPdaily high min15.5 C (59.9 F)2.9 C (5.2 F)2 years12 of 100 (Routine)
21 August 2024Hyesan, KPdaily high min21.2 C (70.2 F)1.9 C (3.4 F)14 years15 of 100 (Routine)
19 August 2024Hyesan, KPdaily high min21.5 C (70.7 F)2.9 C (5.2 F)39 years25 of 100 (Routine)
18 August 2024Hyesan, KPdaily high min20.5 C (68.9 F)1.6 C (2.9 F)33 years19 of 100 (Routine)
17 August 2024Hyesan, KPdaily high min20.2 C (68.4 F)1.7 C (3.1 F)4 years12 of 100 (Routine)
3 August 2024Hyesan, KPdaily high min20.0 C (68.0 F)0.4 C (0.7 F)20 years13 of 100 (Routine)
7 July 2024Hyesan, KPdaily high min18.5 C (65.3 F)0.5 C (0.9 F)51 years22 of 100 (Routine)
22 June 2024Hyesan, KPdaily high min (Tie)17.0 C (62.6 F)tie4 years1 of 100 (Routine)
13 June 2024Hyesan, KPdaily high min14.8 C (58.6 F)1.8 C (3.2 F)14 years15 of 100 (Routine)
12 June 2024Hyesan, KPdaily high min14.4 C (57.9 F)0.5 C (0.9 F)33 years16 of 100 (Routine)

Extremes by Year

1957 to 2025
Yearly extremes at Hyesan: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)39.7 C (103.5 F)201632.8 C (91.0 F)68
Coldest night (TNn)-37.2 C (-35.0 F)1959-30.9 C (-23.6 F)68
Wettest day (Rx1day)131.1 mm (5.2 in)200539.1 mm (1.5 in)68
Wettest five days (Rx5day)129.8 mm (5.1 in)197016.0 mm (0.6 in)41
Longest dry spell (CDD)16 days19744 days66

Hottest day (TXx)

Hottest day (TXx) at Hyesan by year The hottest day of the year at Hyesan, 1957 to 2025. The record is 39.7 C (103.5 F) in 2016, marked on the chart; the median year is 32.8 C (91.0 F). 0102030401960198020002020Record: 39.7 C (103.5 F) in 2016
The hottest day of the year at Hyesan, 1957 to 2025. The record is 39.7 C (103.5 F) in 2016, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Hyesan by year
YearHottest day (TXx)
195728.9 C (84.0 F)
195836.1 C (97.0 F)
195932.8 C (91.0 F)
196032.2 C (90.0 F)
196132.8 C (91.0 F)
196233.9 C (93.0 F)
196332.2 C (90.0 F)
196432.8 C (91.0 F)
196532.2 C (90.0 F)
196631.1 C (88.0 F)
196732.2 C (90.0 F)
196833.9 C (93.0 F)
196932.2 C (90.0 F)
197033.9 C (93.0 F)
197132.8 C (91.0 F)
197336.0 C (96.8 F)
197434.0 C (93.2 F)
197533.0 C (91.4 F)
197632.0 C (89.6 F)
197736.0 C (96.8 F)
197834.0 C (93.2 F)
197932.0 C (89.6 F)
198035.0 C (95.0 F)
198133.0 C (91.4 F)
198233.6 C (92.5 F)
198333.7 C (92.7 F)
198432.5 C (90.5 F)
198531.4 C (88.5 F)
198631.3 C (88.3 F)
198731.2 C (88.2 F)
198836.2 C (97.2 F)
198932.6 C (90.7 F)
199032.2 C (90.0 F)
199131.5 C (88.7 F)
199231.7 C (89.1 F)
199331.4 C (88.5 F)
199436.0 C (96.8 F)
199532.7 C (90.9 F)
199632.4 C (90.3 F)
199737.1 C (98.8 F)
199833.0 C (91.4 F)
199934.0 C (93.2 F)
200036.4 C (97.5 F)
200134.1 C (93.4 F)
200235.3 C (95.5 F)
200332.8 C (91.0 F)
200432.3 C (90.1 F)
200533.1 C (91.6 F)
200634.2 C (93.6 F)
200733.5 C (92.3 F)
200836.2 C (97.2 F)
200932.0 C (89.6 F)
201032.7 C (90.9 F)
201131.9 C (89.4 F)
201232.4 C (90.3 F)
201332.8 C (91.0 F)
201432.5 C (90.5 F)
201534.8 C (94.6 F)
201639.7 C (103.5 F)
201726.2 C (79.2 F)
201837.7 C (99.9 F)
201929.0 C (84.2 F)
202034.0 C (93.2 F)
202136.0 C (96.8 F)
202232.5 C (90.5 F)
202332.5 C (90.5 F)
20240.0 C (32.0 F)
202530.5 C (86.9 F)

Coldest night (TNn)

Coldest night (TNn) at Hyesan by year The coldest night of the year at Hyesan, 1957 to 2025. The record is -37.2 C (-35.0 F) in 1959, marked on the chart; the median year is -30.9 C (-23.6 F). -40-35-30-251960198020002020Record: -37.2 C (-35.0 F) in 1959
The coldest night of the year at Hyesan, 1957 to 2025. The record is -37.2 C (-35.0 F) in 1959, marked on the chart; the median year is -30.9 C (-23.6 F).
Coldest night (TNn) at Hyesan by year
YearColdest night (TNn)
1957-31.1 C (-24.0 F)
1958-33.9 C (-29.0 F)
1959-37.2 C (-35.0 F)
1960-36.1 C (-33.0 F)
1961-36.1 C (-33.0 F)
1962-32.2 C (-26.0 F)
1963-32.2 C (-26.0 F)
1964-32.8 C (-27.0 F)
1965-30.0 C (-22.0 F)
1966-32.8 C (-27.0 F)
1967-33.9 C (-29.0 F)
1968-30.0 C (-22.0 F)
1969-32.2 C (-26.0 F)
1970-35.0 C (-31.0 F)
1971-33.9 C (-29.0 F)
1973-28.0 C (-18.4 F)
1974-30.0 C (-22.0 F)
1975-29.0 C (-20.2 F)
1976-35.0 C (-31.0 F)
1977-36.0 C (-32.8 F)
1978-32.0 C (-25.6 F)
1979-32.0 C (-25.6 F)
1980-31.0 C (-23.8 F)
1981-32.0 C (-25.6 F)
1982-32.5 C (-26.5 F)
1983-31.5 C (-24.7 F)
1984-30.4 C (-22.7 F)
1985-33.4 C (-28.1 F)
1986-32.2 C (-26.0 F)
1987-34.0 C (-29.2 F)
1988-27.8 C (-18.0 F)
1989-27.7 C (-17.9 F)
1990-35.2 C (-31.4 F)
1991-30.5 C (-22.9 F)
1992-29.2 C (-20.6 F)
1993-29.4 C (-20.9 F)
1994-30.8 C (-23.4 F)
1995-28.1 C (-18.6 F)
1996-28.1 C (-18.6 F)
1997-29.3 C (-20.7 F)
1998-31.5 C (-24.7 F)
1999-28.4 C (-19.1 F)
2000-31.9 C (-25.4 F)
2001-33.5 C (-28.3 F)
2002-29.2 C (-20.6 F)
2003-29.9 C (-21.8 F)
2004-29.6 C (-21.3 F)
2005-28.0 C (-18.4 F)
2006-29.8 C (-21.6 F)
2007-26.0 C (-14.8 F)
2008-30.8 C (-23.4 F)
2009-31.6 C (-24.9 F)
2010-30.6 C (-23.1 F)
2011-29.8 C (-21.6 F)
2012-31.0 C (-23.8 F)
2013-30.6 C (-23.1 F)
2014-30.0 C (-22.0 F)
2015-30.1 C (-22.2 F)
2016-31.0 C (-23.8 F)
2017-28.6 C (-19.5 F)
2018-33.9 C (-29.0 F)
2019-30.5 C (-22.9 F)
2020-30.8 C (-23.4 F)
2021-32.6 C (-26.7 F)
2022-28.7 C (-19.7 F)
2023-33.1 C (-27.6 F)
2024-30.2 C (-22.4 F)
2025-28.0 C (-18.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Hyesan by year The wettest day of the year at Hyesan, 1957 to 2025. The record is 131.1 mm (5.2 in) in 2005, marked on the chart; the median year is 39.1 mm (1.5 in). 0501001501960198020002020Record: 131.1 mm (5.2 in) in 2005
The wettest day of the year at Hyesan, 1957 to 2025. The record is 131.1 mm (5.2 in) in 2005, marked on the chart; the median year is 39.1 mm (1.5 in).
Wettest day (Rx1day) at Hyesan by year
YearWettest day (Rx1day)
195724.9 mm (1.0 in)
195860.7 mm (2.4 in)
195940.6 mm (1.6 in)
196049.0 mm (1.9 in)
196147.0 mm (1.9 in)
196242.9 mm (1.7 in)
196330.0 mm (1.2 in)
196436.1 mm (1.4 in)
196535.1 mm (1.4 in)
196629.0 mm (1.1 in)
196743.9 mm (1.7 in)
196837.1 mm (1.5 in)
196922.1 mm (0.9 in)
197065.0 mm (2.6 in)
197142.9 mm (1.7 in)
197321.1 mm (0.8 in)
19740.5 mm (0.02 in)
19750.3 mm (0.01 in)
19760.8 mm (0.03 in)
19770.5 mm (0.02 in)
19780.8 mm (0.03 in)
19790.3 mm (0.01 in)
19800.3 mm (0.01 in)
19810.5 mm (0.02 in)
198265.0 mm (2.6 in)
198355.9 mm (2.2 in)
198471.9 mm (2.8 in)
198558.9 mm (2.3 in)
198673.9 mm (2.9 in)
198725.9 mm (1.0 in)
198837.6 mm (1.5 in)
198923.9 mm (0.9 in)
1990104.9 mm (4.1 in)
199118.0 mm (0.7 in)
199245.0 mm (1.8 in)
199329.0 mm (1.1 in)
1994104.1 mm (4.1 in)
199558.9 mm (2.3 in)
199625.9 mm (1.0 in)
199726.9 mm (1.1 in)
199837.1 mm (1.5 in)
199935.1 mm (1.4 in)
200070.9 mm (2.8 in)
200157.7 mm (2.3 in)
200237.1 mm (1.5 in)
200358.9 mm (2.3 in)
200469.1 mm (2.7 in)
2005131.1 mm (5.2 in)
200635.1 mm (1.4 in)
200743.9 mm (1.7 in)
200835.1 mm (1.4 in)
200945.0 mm (1.8 in)
201093.0 mm (3.7 in)
201135.1 mm (1.4 in)
201262.0 mm (2.4 in)
201359.9 mm (2.4 in)
201487.9 mm (3.5 in)
201555.9 mm (2.2 in)
201641.9 mm (1.6 in)
201731.0 mm (1.2 in)
201841.9 mm (1.6 in)
201946.0 mm (1.8 in)
202056.9 mm (2.2 in)
202127.9 mm (1.1 in)
202294.0 mm (3.7 in)
20230.0 mm (0.00 in)
20240.0 mm (0.00 in)
20250.0 mm (0.00 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hyesan by year The wettest five days of the year at Hyesan, 1957 to 2025. The record is 129.8 mm (5.1 in) in 1970, marked on the chart; the median year is 16.0 mm (0.6 in). 0501001501960198020002020Record: 129.8 mm (5.1 in) in 1970
The wettest five days of the year at Hyesan, 1957 to 2025. The record is 129.8 mm (5.1 in) in 1970, marked on the chart; the median year is 16.0 mm (0.6 in).
Wettest five days (Rx5day) at Hyesan by year
YearWettest five days (Rx5day)
1957n/a
1958n/a
195968.7 mm (2.7 in)
196045.5 mm (1.8 in)
196117.3 mm (0.7 in)
196223.9 mm (0.9 in)
19632.0 mm (0.08 in)
196418.3 mm (0.7 in)
196568.1 mm (2.7 in)
196648.0 mm (1.9 in)
1967n/a
19682.5 mm (0.10 in)
196936.1 mm (1.4 in)
1970129.8 mm (5.1 in)
197164.9 mm (2.6 in)
197322.1 mm (0.9 in)
19740.6 mm (0.02 in)
19750.0 mm (0.00 in)
19760.3 mm (0.01 in)
19770.6 mm (0.02 in)
19781.1 mm (0.04 in)
19790.3 mm (0.01 in)
1980n/a
1981n/a
198280.5 mm (3.2 in)
1983n/a
1984n/a
198556.1 mm (2.2 in)
198662.8 mm (2.5 in)
1987n/a
19882.1 mm (0.08 in)
19891.5 mm (0.06 in)
199016.0 mm (0.6 in)
19918.6 mm (0.34 in)
199241.7 mm (1.6 in)
19936.3 mm (0.25 in)
1994n/a
199554.1 mm (2.1 in)
199659.9 mm (2.4 in)
1997n/a
1998n/a
199968.1 mm (2.7 in)
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
20089.1 mm (0.36 in)
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
2014n/a
20152.8 mm (0.11 in)
201673.9 mm (2.9 in)
2017n/a
20180.0 mm (0.00 in)
20190.0 mm (0.00 in)
20200.0 mm (0.00 in)
20218.9 mm (0.35 in)
202265.5 mm (2.6 in)
2023n/a
20240.0 mm (0.00 in)
20250.0 mm (0.00 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hyesan by year The longest dry spell of the year at Hyesan, 1957 to 2025. The record is 16 days in 1974, marked on the chart; the median year is 4 days. 051015201960198020002020Record: 16 days in 1974
The longest dry spell of the year at Hyesan, 1957 to 2025. The record is 16 days in 1974, marked on the chart; the median year is 4 days.
Longest dry spell (CDD) at Hyesan by year
YearLongest dry spell (CDD)
19571 day
1958n/a
1959n/a
19607 days
19616 days
19627 days
19637 days
19645 days
19658 days
19664 days
19674 days
19684 days
19697 days
19707 days
19719 days
197310 days
197416 days
197512 days
197610 days
19779 days
19787 days
197914 days
19801 day
19811 day
19823 days
19833 days
19844 days
19854 days
19862 days
19872 days
19884 days
19897 days
19909 days
199110 days
199213 days
19933 days
19944 days
19954 days
19962 days
19973 days
19983 days
199911 days
20001 day
20012 days
20022 days
20032 days
20042 days
20052 days
20062 days
20072 days
20083 days
20092 days
20101 day
20112 days
20122 days
20132 days
20142 days
20152 days
20164 days
20171 day
20185 days
20195 days
202016 days
20218 days
20223 days
20234 days
202414 days
20258 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.

Download the Data

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