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Built 2026-10-19 (19 October 2026)

Old Mission 3SSW Threshold Days by Year (USC00206158)

13 fixed thresholds counted per year at Old Mission 3SSW (USC00206158): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Old Mission 3SSW Thresholds

  • Old Mission 3SSW: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 1988 with 33.
  • Old Mission 3SSW: days with a maximum temperature at or below 0 C (32 F) in 23 years, most in 1989 with 86.
  • Old Mission 3SSW: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1985 with 28.
  • Old Mission 3SSW: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1986 with 9.
  • 13 fixed thresholds have at least one qualifying day at Old Mission 3SSW.
23 years with a qualifying day
Days at or above 30 C (86 F) per year at Old Mission 3SSW Days per year at Old Mission 3SSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1988. 0102030401980: 101981: 51982: 51983: 311984: 81985: 51986: 101987: 191988: 331989: 111990: 31991: 171992: 31993: 61994: 31995: 161996: 71997: 91998: 101999: 222000: 52001: 232026: 819801983198619891992199519982001
Days per year at Old Mission 3SSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1988.
Days at or above 30 C (86 F) per year at Old Mission 3SSW
YearDaysDecade average
19801013.7
1981513.7
1982513.7
19833113.7
1984813.7
1985513.7
19861013.7
19871913.7
19883313.7
19891113.7
199039.6
1991179.6
199239.6
199369.6
199439.6
1995169.6
199679.6
199799.6
1998109.6
1999229.6
2000514
20012314
202688
First to last qualifying date each year at Old Mission 3SSW For each year, a bar from the first to the last day at Old Mission 3SSW meeting 30 C (86 F). 1980: 24 June 1980 to 30 August 19801981: 7 July 1981 to 2 August 19811982: 6 July 1982 to 18 July 19821983: 12 June 1983 to 11 September 19831984: 19 June 1984 to 30 August 19841985: 14 July 1985 to 10 August 19851986: 30 May 1986 to 29 July 19861987: 28 May 1987 to 4 August 19871988: 30 May 1988 to 17 August 19881989: 3 July 1989 to 5 August 19891990: 5 July 1990 to 28 August 19901991: 29 May 1991 to 31 August 19911992: 13 June 1992 to 26 August 19921993: 10 May 1993 to 26 August 19931994: 16 June 1994 to 18 June 19941995: 17 June 1995 to 21 August 19951996: 30 June 1996 to 4 September 19961997: 24 June 1997 to 17 July 19971998: 16 May 1998 to 22 July 19981999: 30 May 1999 to 6 September 19992000: 9 June 2000 to 1 September 20002001: 14 June 2001 to 10 August 20012026: 9 June 2026 to 2 September 202619801983198619891992199519982001JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Old Mission 3SSW meeting 30 C (86 F).
First to last qualifying date each year at Old Mission 3SSW
YearFirst dateLast date
19801980-06-241980-08-30
19811981-07-071981-08-02
19821982-07-061982-07-18
19831983-06-121983-09-11
19841984-06-191984-08-30
19851985-07-141985-08-10
19861986-05-301986-07-29
19871987-05-281987-08-04
19881988-05-301988-08-17
19891989-07-031989-08-05
19901990-07-051990-08-28
19911991-05-291991-08-31
19921992-06-131992-08-26
19931993-05-101993-08-26
19941994-06-161994-06-18
19951995-06-171995-08-21
19961996-06-301996-09-04
19971997-06-241997-07-17
19981998-05-161998-07-22
19991999-05-301999-09-06
20002000-06-092000-09-01
20012001-06-142001-08-10
20262026-06-092026-09-02

Every Fixed Threshold

Fixed thresholds at Old Mission 3SSW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days233319888
35 C (95 F): Days3819883
90 F (32.2 C): Days191919881
0 C (32 F): Ice days (max2386198922
0 C (32 F): Frost days (min21180199756
-10 C (14 F): Days with min2161198015
-20 C (-4 F): Days with min131719941
20 C (68 F): Tropical nights (min191519884
25 C (77 F): Days with min1119881
10 mm (0.39 in): Days with 10 mm or more rain2328198515
25 mm (0.98 in): Days with 25 mm or more rain23919865
50 mm (1.97 in): Days with 50 mm or more rain10219911
100 mm (3.94 in): Days with 100 mm or more rain1119911

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1980.

Download the Data

  • Data for Old Mission 3SSW 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).