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Data as of 2026-10-12
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Built 2026-10-14 (14 October 2026)

Warm to Cold Record Ratio: Korea, South

391 record highs and 12 record lows were set in Korea, South in 2026, a ratio of 33 to 1, with the trend by year and decade.

Data as of . Last revised (2026-10-12).

Key Facts

  • In 2026, 391 record highs and 12 record lows were set in Korea, South, a warm to cold ratio of 33 to 1.
  • So far this year, 391 record highs and 12 record lows have been set in Korea, South, a ratio of 33 to 1.
  • The ratio in Korea, South was 0.8 to 1 in the 1950s and 11 to 1 in the 2020s.
  • The series starts in 2025.
  • A ratio of 1 to 1 means as many record highs as record lows; above 1 means more record highs.

Ratio by Year

Record highs divided by record lows
Ratio of record highs to record lows by year, Korea, South Record highs divided by record lows for each year in Korea, South, from 2025 to 2026. A value of 1 is an even split. 0.0 10.0 20.0 30.0 40.0 20252026
Record highs divided by record lows for each year in Korea, South, from 2025 to 2026. A value of 1 is an even split.
Ratio of record highs to record lows by year, Korea, South
YearHighs to lows
202513 to 1
202633 to 1

The chart starts in 2025. Earlier years are left out because fewer than 500 records were set in each, from too few stations to give a steady ratio. The data download has every year.

Ratio by Decade

Ratio of record highs to record lows by decade, Korea, South Decade ratios in Korea, South: 1950s 0.8 to 1, 1960s 1.2 to 1, 1970s 1.3 to 1, 1980s 1.0 to 1, 1990s 2.5 to 1, 2000s 1.6 to 1, 2010s 2.7 to 1, 2020s 11 to 1. 0.0 3.0 6.0 9.0 12.0 1950s1960s1970s1980s1990s2000s2010s2020s
Decade ratios in Korea, South: 1950s 0.8 to 1, 1960s 1.2 to 1, 1970s 1.3 to 1, 1980s 1.0 to 1, 1990s 2.5 to 1, 2000s 1.6 to 1, 2010s 2.7 to 1, 2020s 11 to 1. Dashed line: an even split of 1 to 1.
Ratio of record highs to record lows by decade, Korea, South
DecadeRatio
1950s0.8 to 1
1960s1.2 to 1
1970s1.3 to 1
1980s1.0 to 1
1990s2.5 to 1
2000s1.6 to 1
2010s2.7 to 1
2020s11 to 1

Cumulative Highs and Lows in 2026

Cumulative record highs and record lows in 2026, Korea, South Running totals of record highs and record lows in Korea, South through 2026: 391 highs against 12 lows so far. 0 100 200 300 400 1 Jan21 Feb13 Apr20 May12 Jun20 Jul6 Aug3 Sep
Running totals of record highs and record lows in Korea, South through 2026: 391 highs against 12 lows so far.
Cumulative record highs and record lows in 2026, Korea, South
DateRecord highsRecord lows
2026-01-0101
2026-01-0411
2026-01-1112
2026-01-1582
2026-01-16162
2026-01-17202
2026-01-18252
2026-01-20253
2026-02-04263
2026-02-07264
2026-02-08265
2026-02-11275
2026-02-13285
2026-02-14305
2026-02-15365
2026-02-19375
2026-02-20395
2026-02-21445
2026-02-22495
2026-02-23505
2026-02-25545
2026-02-26595
2026-02-27615
2026-03-01625
2026-03-02635
2026-03-05645
2026-03-23655
2026-03-25665
2026-04-03705
2026-04-05715
2026-04-08725
2026-04-10735
2026-04-11745
2026-04-12795
2026-04-13865
2026-04-14885
2026-04-15905
2026-04-16925
2026-04-18955
2026-04-19985
2026-04-25995
2026-04-261015
2026-05-011017
2026-05-061027
2026-05-111067
2026-05-131077
2026-05-151097
2026-05-161127
2026-05-171167
2026-05-181257
2026-05-191317
2026-05-201327
2026-05-211328
2026-05-241348
2026-05-251408
2026-05-261478
2026-05-271498
2026-05-281508
2026-05-291538
2026-05-301588
2026-05-311658
2026-06-011718
2026-06-021768
2026-06-031828
2026-06-041868
2026-06-051878
2026-06-061908
2026-06-101918
2026-06-121928
2026-06-151938
2026-06-161988
2026-06-172038
2026-06-182068
2026-06-192088
2026-06-222099
2026-06-292109
2026-07-102139
2026-07-112239
2026-07-122359
2026-07-132419
2026-07-142449
2026-07-152459
2026-07-162469
2026-07-172489
2026-07-182509
2026-07-202539
2026-07-212559
2026-07-222599
2026-07-232619
2026-07-242629
2026-07-252659
2026-07-262669
2026-07-272699
2026-07-282739
2026-07-292779
2026-07-302819
2026-07-312909
2026-08-012999
2026-08-023069
2026-08-033139
2026-08-043199
2026-08-053229
2026-08-0632310
2026-08-0733310
2026-08-0833710
2026-08-0933910
2026-08-2034110
2026-08-2134510
2026-08-2234710
2026-08-2334810
2026-08-2435410
2026-08-2535610
2026-08-2636310
2026-08-2736610
2026-08-2836810
2026-08-2937110
2026-08-3037310
2026-08-3137610
2026-09-0237910
2026-09-0338010
2026-09-0938011
2026-09-1038012
2026-09-2138112
2026-09-2238212
2026-09-2338412
2026-09-2438512
2026-09-2738712
2026-09-2838812
2026-09-3039112

Year to Date Against Previous Years

Year to date ratio against the previous ten years, Korea, South The ratio of record highs to record lows over the same part of the year, for each of the previous ten years and this year (highlighted). 0.0 10.0 20.0 30.0 40.0 201620182020202220242026
The ratio of record highs to record lows over the same part of the year, for each of the previous ten years and this year (highlighted). Dashed line: an even split of 1 to 1.
Year to date ratio against the previous ten years, Korea, South
YearRatio
20165.8 to 1
201715 to 1
20184.2 to 1
201936 to 1
202012 to 1
20216.5 to 1
202212 to 1
202310 to 1
202427 to 1
202514 to 1
2026 (this year)33 to 1

Download the Data

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 2026-10-12. Records are computed by this site. The ratio uses record highs and record lows of daily maximum and minimum temperature.