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Built 2026-10-19 (19 October 2026)

Center 4 SSW Threshold Days by Year (USC00051458)

14 fixed thresholds counted per year at Center 4 SSW (USC00051458): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Center 4 SSW Thresholds

  • Center 4 SSW: days with a maximum temperature at or below 0 C (32 F) in 64 years, most in 1992 with 84.
  • Center 4 SSW: nights with a minimum temperature at or below 0 C (32 F) in 64 years, most in 1959 with 252.
  • Center 4 SSW: nights with a minimum temperature at or below -10 C (14 F) in 64 years, most in 1979 with 141.
  • Center 4 SSW: nights with a minimum temperature at or below -20 C (-4 F) in 64 years, most in 1992 with 72.
  • 14 fixed thresholds have at least one qualifying day at Center 4 SSW.
54 years with a qualifying day
Days at or above 30 C (86 F) per year at Center 4 SSW Days per year at Center 4 SSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 44 in 1954. 02040601942: 41944: 51945: 31946: 151947: 121950: 11951: 291952: 301953: 211954: 441955: 261956: 391957: 121958: 161959: 101960: 41961: 21962: 21963: 101964: 91966: 31967: 21968: 21969: 101970: 61971: 31973: 91974: 81977: 41979: 11981: 61985: 91986: 21987: 21988: 31989: 91990: 141991: 41992: 21993: 41995: 41996: 61997: 21998: 101999: 52000: 112001: 62002: 212003: 262004: 72005: 182006: 92007: 142008: 2194219511957196319701981199019972003
Days per year at Center 4 SSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 44 in 1954.
Days at or above 30 C (86 F) per year at Center 4 SSW
YearDaysDecade average
194247.8
194457.8
194537.8
1946157.8
1947127.8
1950122.8
19512922.8
19523022.8
19532122.8
19544422.8
19552622.8
19563922.8
19571222.8
19581622.8
19591022.8
196044.9
196124.9
196224.9
1963104.9
196494.9
196634.9
196724.9
196824.9
1969104.9
197065.2
197135.2
197395.2
197485.2
197745.2
197915.2
198165.2
198595.2
198625.2
198725.2
198835.2
198995.2
1990145.7
199145.7
199225.7
199345.7
199545.7
199665.7
199725.7
1998105.7
199955.7
20001112.7
2001612.7
20022112.7
20032612.7
2004712.7
20051812.7
2006912.7
20071412.7
2008212.7
First to last qualifying date each year at Center 4 SSW For each year, a bar from the first to the last day at Center 4 SSW meeting 30 C (86 F). 1942: 12 July 1942 to 15 July 19421944: 23 June 1944 to 14 August 19441945: 30 June 1945 to 31 July 19451946: 8 June 1946 to 6 August 19461947: 11 July 1947 to 8 August 19471950: 15 June 1950 to 15 June 19501951: 27 May 1951 to 16 August 19511952: 7 June 1952 to 6 September 19521953: 11 June 1953 to 8 August 19531954: 17 June 1954 to 2 September 19541955: 7 June 1955 to 6 September 19551956: 31 May 1956 to 14 September 19561957: 25 June 1957 to 2 August 19571958: 19 June 1958 to 16 August 19581959: 11 June 1959 to 25 July 19591960: 19 June 1960 to 1 July 19601961: 24 July 1961 to 7 August 19611962: 9 August 1962 to 10 August 19621963: 25 June 1963 to 31 July 19631964: 3 July 1964 to 23 July 19641966: 9 July 1966 to 17 July 19661967: 1 July 1967 to 5 July 19671968: 23 June 1968 to 21 July 19681969: 3 July 1969 to 27 August 19691970: 24 June 1970 to 12 August 19701971: 11 July 1971 to 13 July 19711973: 26 June 1973 to 6 July 19731974: 14 June 1974 to 30 June 19741977: 17 June 1977 to 8 September 19771979: 14 July 1979 to 14 July 19791981: 20 June 1981 to 7 July 19811985: 8 June 1985 to 31 August 19851986: 18 August 1986 to 20 August 19861987: 23 July 1987 to 24 July 19871988: 22 June 1988 to 25 July 19881989: 2 July 1989 to 19 July 19891990: 24 June 1990 to 14 September 19901991: 26 June 1991 to 16 July 19911992: 6 July 1992 to 7 July 19921993: 2 July 1993 to 1 August 19931995: 26 July 1995 to 5 September 19951996: 6 July 1996 to 14 August 19961997: 2 July 1997 to 15 July 19971998: 27 June 1998 to 8 August 19981999: 28 June 1999 to 5 July 19992000: 23 May 2000 to 15 August 20002001: 18 June 2001 to 29 July 20012002: 30 May 2002 to 26 August 20022003: 29 May 2003 to 21 August 20032004: 7 June 2004 to 11 August 20042005: 21 May 2005 to 1 August 20052006: 5 June 2006 to 24 July 20062007: 20 June 2007 to 25 August 20072008: 31 July 2008 to 2 August 200819421952195919671977198919972004JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Center 4 SSW meeting 30 C (86 F).
First to last qualifying date each year at Center 4 SSW
YearFirst dateLast date
19421942-07-121942-07-15
19441944-06-231944-08-14
19451945-06-301945-07-31
19461946-06-081946-08-06
19471947-07-111947-08-08
19501950-06-151950-06-15
19511951-05-271951-08-16
19521952-06-071952-09-06
19531953-06-111953-08-08
19541954-06-171954-09-02
19551955-06-071955-09-06
19561956-05-311956-09-14
19571957-06-251957-08-02
19581958-06-191958-08-16
19591959-06-111959-07-25
19601960-06-191960-07-01
19611961-07-241961-08-07
19621962-08-091962-08-10
19631963-06-251963-07-31
19641964-07-031964-07-23
19661966-07-091966-07-17
19671967-07-011967-07-05
19681968-06-231968-07-21
19691969-07-031969-08-27
19701970-06-241970-08-12
19711971-07-111971-07-13
19731973-06-261973-07-06
19741974-06-141974-06-30
19771977-06-171977-09-08
19791979-07-141979-07-14
19811981-06-201981-07-07
19851985-06-081985-08-31
19861986-08-181986-08-20
19871987-07-231987-07-24
19881988-06-221988-07-25
19891989-07-021989-07-19
19901990-06-241990-09-14
19911991-06-261991-07-16
19921992-07-061992-07-07
19931993-07-021993-08-01
19951995-07-261995-09-05
19961996-07-061996-08-14
19971997-07-021997-07-15
19981998-06-271998-08-08
19991999-06-281999-07-05
20002000-05-232000-08-15
20012001-06-182001-07-29
20022002-05-302002-08-26
20032003-05-292003-08-21
20042004-06-072004-08-11
20052005-05-212005-08-01
20062006-06-052006-07-24
20072007-06-202007-08-25
20082008-07-312008-08-02

Every Fixed Threshold

Fixed thresholds at Center 4 SSW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days544419542
35 C (95 F): Days1119541
90 F (32.2 C): Days212219541
0 C (32 F): Ice days (max6484199265
0 C (32 F): Frost days (min642521959219
-10 C (14 F): Days with min641411979109
-20 C (-4 F): Days with min6472199257
-30 C (-22 F): Days with min361419794
-40 C (-40 F): Days with min1119781
10 mm (0.39 in): Days with 10 mm or more rain611119596
25 mm (0.98 in): Days with 25 mm or more rain9219651
50 mm (1.97 in): Days with 50 mm or more rain1119891
10 cm (3.9 in): Days with 10 cm or more snowfall45719876
25 cm (9.8 in): Days with 25 cm or more snowfall5119441

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

  • Data for Center 4 SSW 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 (2025-12-31).