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Built 2026-10-19 (19 October 2026)

Sunwu Threshold Days by Year (CHM00050564)

16 fixed thresholds counted per year at Sunwu (CHM00050564): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sunwu Thresholds

  • Sunwu: days with a maximum temperature at or below 0 C (32 F) in 73 years, most in 1979 with 150.
  • Sunwu: days with a maximum temperature at or above 30 C (86 F) in 72 years, most in 2000 with 29.
  • Sunwu: nights with a minimum temperature at or below 0 C (32 F) in 66 years, most in 1969 with 241.
  • Sunwu: nights with a minimum temperature at or below -10 C (14 F) in 66 years, most in 1976 with 176.
  • 16 fixed thresholds have at least one qualifying day at Sunwu.
72 years with a qualifying day
Days at or above 30 C (86 F) per year at Sunwu Days per year at Sunwu with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2000. 01020301954: 181955: 131956: 21957: 21958: 61959: 71960: 51961: 21962: 21963: 51964: 61965: 91966: 31967: 21968: 151969: 81970: 101971: 51972: 21973: 91974: 71975: 41976: 81977: 81978: 41979: 61980: 141981: 71982: 181984: 21985: 51986: 61987: 91988: 101989: 101990: 81991: 31992: 101993: 11994: 121995: 81996: 101997: 81998: 61999: 162000: 292001: 192002: 142003: 52004: 192005: 122006: 132007: 282008: 202009: 82010: 242011: 162012: 192013: 92014: 92015: 162016: 92017: 162018: 132019: 32020: 272021: 202022: 152023: 142024: 192025: 122026: 1195419621970197819871995200320112019
Days per year at Sunwu with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2000.
Days at or above 30 C (86 F) per year at Sunwu
YearDaysDecade average
1954188
1955138
195628
195728
195868
195978
196055.7
196125.7
196225.7
196355.7
196465.7
196595.7
196635.7
196725.7
1968155.7
196985.7
1970106.3
197156.3
197226.3
197396.3
197476.3
197546.3
197686.3
197786.3
197846.3
197966.3
1980149
198179
1982189
198429
198559
198669
198799
1988109
1989109
199088.2
199138.2
1992108.2
199318.2
1994128.2
199588.2
1996108.2
199788.2
199868.2
1999168.2
20002916.7
20011916.7
20021416.7
2003516.7
20041916.7
20051216.7
20061316.7
20072816.7
20082016.7
2009816.7
20102413.4
20111613.4
20121913.4
2013913.4
2014913.4
20151613.4
2016913.4
20171613.4
20181313.4
2019313.4
20202715.4
20212015.4
20221515.4
20231415.4
20241915.4
20251215.4
2026115.4
First to last qualifying date each year at Sunwu For each year, a bar from the first to the last day at Sunwu meeting 30 C (86 F). 1954: 27 June 1954 to 30 August 19541955: 19 July 1955 to 24 August 19551956: 30 July 1956 to 3 August 19561957: 15 June 1957 to 11 July 19571958: 30 May 1958 to 16 July 19581959: 10 June 1959 to 13 August 19591960: 12 July 1960 to 29 July 19601961: 1 June 1961 to 9 July 19611962: 29 June 1962 to 13 July 19621963: 18 June 1963 to 3 August 19631964: 14 May 1964 to 4 August 19641965: 27 May 1965 to 24 June 19651966: 17 May 1966 to 19 May 19661967: 24 July 1967 to 29 July 19671968: 21 June 1968 to 15 August 19681969: 7 June 1969 to 20 July 19691970: 18 June 1970 to 17 August 19701971: 18 June 1971 to 1 July 19711972: 23 May 1972 to 24 June 19721973: 29 June 1973 to 8 August 19731974: 17 May 1974 to 15 August 19741975: 27 May 1975 to 20 August 19751976: 5 July 1976 to 21 July 19761977: 11 May 1977 to 20 July 19771978: 18 June 1978 to 30 June 19781979: 20 May 1979 to 5 July 19791980: 25 June 1980 to 8 August 19801981: 20 May 1981 to 26 July 19811982: 2 June 1982 to 2 August 19821984: 30 July 1984 to 31 July 19841985: 16 May 1985 to 4 July 19851986: 4 June 1986 to 15 June 19861987: 28 May 1987 to 28 July 19871988: 9 June 1988 to 7 August 19881989: 4 July 1989 to 10 August 19891990: 17 May 1990 to 21 July 19901991: 25 June 1991 to 23 August 19911992: 26 May 1992 to 16 July 19921993: 15 July 1993 to 15 July 19931994: 10 June 1994 to 29 August 19941995: 4 June 1995 to 18 July 19951996: 15 May 1996 to 17 July 19961997: 13 May 1997 to 19 July 19971998: 15 May 1998 to 19 July 19981999: 10 June 1999 to 9 August 19992000: 3 June 2000 to 2 September 20002001: 13 May 2001 to 5 August 20012002: 19 May 2002 to 28 July 20022003: 21 May 2003 to 19 June 20032004: 2 June 2004 to 23 August 20042005: 27 June 2005 to 14 August 20052006: 16 May 2006 to 9 August 20062007: 10 June 2007 to 6 September 20072008: 12 June 2008 to 31 July 20082009: 20 May 2009 to 8 August 20092010: 23 May 2010 to 14 September 20102011: 15 June 2011 to 28 August 20112012: 21 May 2012 to 7 August 20122013: 22 June 2013 to 1 August 20132014: 1 June 2014 to 2 July 20142015: 13 June 2015 to 14 August 20152016: 20 May 2016 to 1 August 20162017: 9 May 2017 to 17 July 20172018: 30 May 2018 to 28 July 20182019: 24 June 2019 to 9 July 20192020: 8 June 2020 to 31 July 20202021: 22 May 2021 to 24 July 20212022: 22 June 2022 to 5 August 20222023: 24 May 2023 to 16 August 20232024: 2 July 2024 to 17 August 20242025: 28 May 2025 to 23 July 20252026: 31 May 2026 to 31 May 202619541963197219811991200020092018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sunwu meeting 30 C (86 F).
First to last qualifying date each year at Sunwu
YearFirst dateLast date
19541954-06-271954-08-30
19551955-07-191955-08-24
19561956-07-301956-08-03
19571957-06-151957-07-11
19581958-05-301958-07-16
19591959-06-101959-08-13
19601960-07-121960-07-29
19611961-06-011961-07-09
19621962-06-291962-07-13
19631963-06-181963-08-03
19641964-05-141964-08-04
19651965-05-271965-06-24
19661966-05-171966-05-19
19671967-07-241967-07-29
19681968-06-211968-08-15
19691969-06-071969-07-20
19701970-06-181970-08-17
19711971-06-181971-07-01
19721972-05-231972-06-24
19731973-06-291973-08-08
19741974-05-171974-08-15
19751975-05-271975-08-20
19761976-07-051976-07-21
19771977-05-111977-07-20
19781978-06-181978-06-30
19791979-05-201979-07-05
19801980-06-251980-08-08
19811981-05-201981-07-26
19821982-06-021982-08-02
19841984-07-301984-07-31
19851985-05-161985-07-04
19861986-06-041986-06-15
19871987-05-281987-07-28
19881988-06-091988-08-07
19891989-07-041989-08-10
19901990-05-171990-07-21
19911991-06-251991-08-23
19921992-05-261992-07-16
19931993-07-151993-07-15
19941994-06-101994-08-29
19951995-06-041995-07-18
19961996-05-151996-07-17
19971997-05-131997-07-19
19981998-05-151998-07-19
19991999-06-101999-08-09
20002000-06-032000-09-02
20012001-05-132001-08-05
20022002-05-192002-07-28
20032003-05-212003-06-19
20042004-06-022004-08-23
20052005-06-272005-08-14
20062006-05-162006-08-09
20072007-06-102007-09-06
20082008-06-122008-07-31
20092009-05-202009-08-08
20102010-05-232010-09-14
20112011-06-152011-08-28
20122012-05-212012-08-07
20132013-06-222013-08-01
20142014-06-012014-07-02
20152015-06-132015-08-14
20162016-05-202016-08-01
20172017-05-092017-07-17
20182018-05-302018-07-28
20192019-06-242019-07-09
20202020-06-082020-07-31
20212021-05-222021-07-24
20222022-06-222022-08-05
20232023-05-242023-08-16
20242024-07-022024-08-17
20252025-05-282025-07-23
20262026-05-312026-05-31

Every Fixed Threshold

Fixed thresholds at Sunwu
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days722920001
35 C (95 F): Days10720101
90 F (32.2 C): Days521420074
100 F (37.8 C): Days2320103
0 C (32 F): Ice days (max73150197975
0 C (32 F): Frost days (min66241196999
-10 C (14 F): Days with min66176197672
-20 C (-4 F): Days with min66131197451
-30 C (-22 F): Days with min669419666
-40 C (-40 F): Days with min301519663
20 C (68 F): Tropical nights (min371920256
25 C (77 F): Days with min1120251
10 mm (0.39 in): Days with 10 mm or more rain6425198413
25 mm (0.98 in): Days with 25 mm or more rain611019614
50 mm (1.97 in): Days with 50 mm or more rain27319992
100 mm (3.94 in): Days with 100 mm or more rain4119941

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

  • Data for Sunwu 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). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).