Built 2026-10-18 (18 October 2026)

Stephan 2 NW Threshold Days by Year

20 fixed thresholds counted per year at Stephan 2 NW (USC00397992): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stephan 2 NW Thresholds

  • Stephan 2 NW: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1976 with 93.
  • Stephan 2 NW: days with a maximum temperature at or above 90 F (32.2 C) in 58 years, most in 1976 with 70.
  • Stephan 2 NW: days with a maximum temperature at or below 0 C (32 F) in 58 years, most in 1978 with 95.
  • Stephan 2 NW: nights with a minimum temperature at or below 0 C (32 F) in 58 years, most in 1983 with 206.
  • 20 fixed thresholds have at least one qualifying day at Stephan 2 NW.
58 years with a qualifying day
Days at or above 30 C (86 F) per year at Stephan 2 NW Days per year at Stephan 2 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 1976. 02550751001904: 451905: 371906: 311907: 281908: 461909: 541910: 641911: 481912: 371913: 551914: 501915: 141916: 481917: 421960: 541961: 651962: 391964: 651965: 431966: 611967: 471969: 551970: 721971: 721974: 591975: 651976: 931977: 581978: 651979: 541980: 821981: 531982: 441983: 751984: 681985: 501986: 491987: 671988: 801989: 701990: 641991: 531992: 291993: 261994: 561995: 511996: 471997: 321998: 552000: 612001: 562002: 582003: 512004: 342005: 602006: 652007: 532009: 251904191019161965197419801986199219982005
Days per year at Stephan 2 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 1976.
Days at or above 30 C (86 F) per year at Stephan 2 NW
YearDaysDecade average
19044540.2
19053740.2
19063140.2
19072840.2
19084640.2
19095440.2
19106444.8
19114844.8
19123744.8
19135544.8
19145044.8
19151444.8
19164844.8
19174244.8
19605453.6
19616553.6
19623953.6
19646553.6
19654353.6
19666153.6
19674753.6
19695553.6
19707267.3
19717267.3
19745967.3
19756567.3
19769367.3
19775867.3
19786567.3
19795467.3
19808263.8
19815363.8
19824463.8
19837563.8
19846863.8
19855063.8
19864963.8
19876763.8
19888063.8
19897063.8
19906445.9
19915345.9
19922945.9
19932645.9
19945645.9
19955145.9
19964745.9
19973245.9
19985545.9
20006151.4
20015651.4
20025851.4
20035151.4
20043451.4
20056051.4
20066551.4
20075351.4
20092551.4
First to last qualifying date each year at Stephan 2 NW For each year, a bar from the first to the last day at Stephan 2 NW meeting 30 C (86 F). 1904: 2 May 1904 to 15 October 19041905: 3 June 1905 to 6 October 19051906: 24 April 1906 to 12 October 19061907: 15 June 1907 to 6 October 19071908: 12 April 1908 to 14 October 19081909: 4 May 1909 to 6 October 19091910: 20 April 1910 to 17 October 19101911: 9 May 1911 to 22 September 19111912: 2 June 1912 to 4 October 19121913: 26 May 1913 to 13 September 19131914: 5 June 1914 to 2 October 19141915: 12 May 1915 to 23 October 19151916: 6 May 1916 to 11 September 19161917: 16 May 1917 to 23 September 19171960: 26 June 1960 to 8 October 19601961: 10 May 1961 to 16 October 19611962: 24 April 1962 to 14 October 19621964: 15 April 1964 to 25 September 19641965: 30 April 1965 to 11 September 19651966: 4 May 1966 to 11 September 19661967: 17 May 1967 to 3 October 19671969: 14 May 1969 to 20 September 19691970: 7 April 1970 to 5 October 19701971: 7 April 1971 to 14 September 19711974: 3 June 1974 to 26 September 19741975: 19 May 1975 to 8 October 19751976: 18 May 1976 to 30 September 19761977: 9 April 1977 to 10 September 19771978: 6 June 1978 to 26 September 19781979: 28 May 1979 to 1 October 19791980: 20 April 1980 to 9 October 19801981: 2 May 1981 to 29 September 19811982: 14 April 1982 to 10 September 19821983: 26 May 1983 to 27 September 19831984: 16 May 1984 to 22 September 19841985: 18 April 1985 to 18 September 19851986: 23 April 1986 to 31 August 19861987: 17 April 1987 to 26 September 19871988: 18 May 1988 to 17 September 19881989: 22 April 1989 to 30 September 19891990: 22 April 1990 to 5 October 19901991: 14 May 1991 to 16 October 19911992: 5 April 1992 to 22 October 19921993: 21 June 1993 to 7 October 19931994: 10 May 1994 to 19 September 19941995: 14 June 1995 to 12 October 19951996: 10 April 1996 to 9 September 19961997: 17 May 1997 to 2 October 19971998: 30 May 1998 to 19 September 19982000: 5 May 2000 to 1 October 20002001: 29 April 2001 to 12 September 20012002: 30 May 2002 to 17 September 20022003: 14 April 2003 to 9 October 20032004: 29 April 2004 to 20 September 20042005: 7 June 2005 to 1 October 20052006: 19 May 2006 to 8 October 20062007: 14 May 2007 to 7 October 20072009: 23 April 2009 to 9 September 200919041912196219741982199019982007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Stephan 2 NW meeting 30 C (86 F).
First to last qualifying date each year at Stephan 2 NW
YearFirst dateLast date
19041904-05-021904-10-15
19051905-06-031905-10-06
19061906-04-241906-10-12
19071907-06-151907-10-06
19081908-04-121908-10-14
19091909-05-041909-10-06
19101910-04-201910-10-17
19111911-05-091911-09-22
19121912-06-021912-10-04
19131913-05-261913-09-13
19141914-06-051914-10-02
19151915-05-121915-10-23
19161916-05-061916-09-11
19171917-05-161917-09-23
19601960-06-261960-10-08
19611961-05-101961-10-16
19621962-04-241962-10-14
19641964-04-151964-09-25
19651965-04-301965-09-11
19661966-05-041966-09-11
19671967-05-171967-10-03
19691969-05-141969-09-20
19701970-04-071970-10-05
19711971-04-071971-09-14
19741974-06-031974-09-26
19751975-05-191975-10-08
19761976-05-181976-09-30
19771977-04-091977-09-10
19781978-06-061978-09-26
19791979-05-281979-10-01
19801980-04-201980-10-09
19811981-05-021981-09-29
19821982-04-141982-09-10
19831983-05-261983-09-27
19841984-05-161984-09-22
19851985-04-181985-09-18
19861986-04-231986-08-31
19871987-04-171987-09-26
19881988-05-181988-09-17
19891989-04-221989-09-30
19901990-04-221990-10-05
19911991-05-141991-10-16
19921992-04-051992-10-22
19931993-06-211993-10-07
19941994-05-101994-09-19
19951995-06-141995-10-12
19961996-04-101996-09-09
19971997-05-171997-10-02
19981998-05-301998-09-19
20002000-05-052000-10-01
20012001-04-292001-09-12
20022002-05-302002-09-17
20032003-04-142003-10-09
20042004-04-292004-09-20
20052005-06-072005-10-01
20062006-05-192006-10-08
20072007-05-142007-10-07
20092009-04-232009-09-09

Every Fixed Threshold

Fixed thresholds at Stephan 2 NW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5893197625
35 C (95 F): Days574219762
40 C (104 F): Days271019761
90 F (32.2 C): Days5870197610
100 F (37.8 C): Days502619764
110 F (43.3 C): Days5219761
0 C (32 F): Ice days (max5895197850
0 C (32 F): Frost days (min582061983163
-10 C (14 F): Days with min58112197873
-20 C (-4 F): Days with min5853191621
-30 C (-22 F): Days with min441419852
-40 C (-40 F): Days with min2119121
20 C (68 F): Tropical nights (min531619887
25 C (77 F): Days with min2119111
10 mm (0.39 in): Days with 10 mm or more rain5827199313
25 mm (0.98 in): Days with 25 mm or more rain571019061
50 mm (1.97 in): Days with 50 mm or more rain24319061
10 cm (3.9 in): Days with 10 cm or more snowfall38719852
25 cm (9.8 in): Days with 25 cm or more snowfall12319751
50 cm (19.7 in): Days with 50 cm or more snowfall1120091

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

Download the Data

  • Data for Stephan 2 NW 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).