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Built 2026-10-19 (19 October 2026)

Norton W Threshold Days by Year (USC00195984)

17 fixed thresholds counted per year at Norton W (USC00195984): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Norton W Thresholds

  • Norton W: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 1991 with 49.
  • Norton W: days with a maximum temperature at or above 90 F (32.2 C) in 50 years, most in 2002 with 25.
  • Norton W: days with a maximum temperature at or below 0 C (32 F) in 50 years, most in 2015 with 43.
  • Norton W: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 1983 with 53.
  • 17 fixed thresholds have at least one qualifying day at Norton W.
50 years with a qualifying day
Days at or above 30 C (86 F) per year at Norton W Days per year at Norton W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 49 in 1991. 02040601976: 351977: 331978: 261979: 281980: 431981: 261982: 171983: 451984: 261985: 171986: 161987: 261988: 341989: 211990: 281991: 491992: 171993: 381994: 331995: 371996: 221997: 301998: 281999: 442000: 192001: 322002: 402003: 242004: 222005: 392007: 392008: 232009: 192010: 402011: 312012: 302013: 292014: 202015: 292016: 362017: 212018: 362019: 282020: 322021: 272022: 302023: 162024: 212025: 282026: 241976198119861991199620012007201220172022
Days per year at Norton W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 49 in 1991.
Days at or above 30 C (86 F) per year at Norton W
YearDaysDecade average
19763530.5
19773330.5
19782630.5
19792830.5
19804327.1
19812627.1
19821727.1
19834527.1
19842627.1
19851727.1
19861627.1
19872627.1
19883427.1
19892127.1
19902832.6
19914932.6
19921732.6
19933832.6
19943332.6
19953732.6
19962232.6
19973032.6
19982832.6
19994432.6
20001928.6
20013228.6
20024028.6
20032428.6
20042228.6
20053928.6
20073928.6
20082328.6
20091928.6
20104030
20113130
20123030
20132930
20142030
20152930
20163630
20172130
20183630
20192830
20203225.4
20212725.4
20223025.4
20231625.4
20242125.4
20252825.4
20262425.4
First to last qualifying date each year at Norton W For each year, a bar from the first to the last day at Norton W meeting 30 C (86 F). 1976: 17 April 1976 to 14 September 19761977: 30 March 1977 to 3 September 19771978: 20 May 1978 to 29 August 19781979: 9 May 1979 to 30 August 19791980: 1 June 1980 to 22 September 19801981: 25 May 1981 to 12 September 19811982: 8 July 1982 to 12 September 19821983: 12 June 1983 to 20 September 19831984: 5 June 1984 to 24 September 19841985: 11 May 1985 to 20 September 19851986: 18 May 1986 to 6 August 19861987: 29 May 1987 to 20 August 19871988: 14 June 1988 to 28 August 19881989: 2 June 1989 to 11 September 19891990: 27 April 1990 to 29 August 19901991: 8 April 1991 to 17 September 19911992: 21 May 1992 to 26 August 19921993: 11 May 1993 to 3 September 19931994: 7 June 1994 to 4 August 19941995: 31 May 1995 to 1 September 19951996: 20 May 1996 to 30 August 19961997: 10 June 1997 to 17 August 19971998: 31 March 1998 to 6 September 19981999: 30 May 1999 to 4 September 19992000: 7 May 2000 to 1 September 20002001: 1 May 2001 to 10 September 20012002: 16 April 2002 to 10 September 20022003: 19 May 2003 to 22 August 20032004: 11 May 2004 to 4 September 20042005: 20 April 2005 to 13 September 20052007: 24 May 2007 to 26 September 20072008: 8 June 2008 to 6 September 20082009: 27 April 2009 to 25 August 20092010: 8 April 2010 to 26 September 20102011: 28 May 2011 to 27 August 20112012: 17 April 2012 to 1 September 20122013: 22 May 2013 to 12 September 20132014: 9 June 2014 to 7 September 20142015: 11 May 2015 to 18 September 20152016: 26 May 2016 to 15 September 20162017: 18 May 2017 to 26 September 20172018: 3 May 2018 to 7 September 20182019: 21 May 2019 to 23 August 20192020: 5 June 2020 to 26 August 20202021: 24 May 2021 to 28 August 20212022: 22 May 2022 to 31 August 20222023: 14 April 2023 to 8 September 20232024: 23 May 2024 to 29 August 20242025: 6 June 2025 to 18 August 20252026: 18 May 2026 to 10 August 202619761983199019972004201220192026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Norton W meeting 30 C (86 F).
First to last qualifying date each year at Norton W
YearFirst dateLast date
19761976-04-171976-09-14
19771977-03-301977-09-03
19781978-05-201978-08-29
19791979-05-091979-08-30
19801980-06-011980-09-22
19811981-05-251981-09-12
19821982-07-081982-09-12
19831983-06-121983-09-20
19841984-06-051984-09-24
19851985-05-111985-09-20
19861986-05-181986-08-06
19871987-05-291987-08-20
19881988-06-141988-08-28
19891989-06-021989-09-11
19901990-04-271990-08-29
19911991-04-081991-09-17
19921992-05-211992-08-26
19931993-05-111993-09-03
19941994-06-071994-08-04
19951995-05-311995-09-01
19961996-05-201996-08-30
19971997-06-101997-08-17
19981998-03-311998-09-06
19991999-05-301999-09-04
20002000-05-072000-09-01
20012001-05-012001-09-10
20022002-04-162002-09-10
20032003-05-192003-08-22
20042004-05-112004-09-04
20052005-04-202005-09-13
20072007-05-242007-09-26
20082008-06-082008-09-06
20092009-04-272009-08-25
20102010-04-082010-09-26
20112011-05-282011-08-27
20122012-04-172012-09-01
20132013-05-222013-09-12
20142014-06-092014-09-07
20152015-05-112015-09-18
20162016-05-262016-09-15
20172017-05-182017-09-26
20182018-05-032018-09-07
20192019-05-212019-08-23
20202020-06-052020-08-26
20212021-05-242021-08-28
20222022-05-222022-08-31
20232023-04-142023-09-08
20242024-05-232024-08-29
20252025-06-062025-08-18
20262026-05-182026-08-10

Every Fixed Threshold

Fixed thresholds at Norton W
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5049199124
35 C (95 F): Days36819912
90 F (32.2 C): Days502520029
100 F (37.8 C): Days1219912
0 C (32 F): Ice days (max5043201526
0 C (32 F): Frost days (min19149201393
-10 C (14 F): Days with min1951201536
-20 C (-4 F): Days with min91020152
20 C (68 F): Tropical nights (min1925201812
25 C (77 F): Days with min1120221
10 mm (0.39 in): Days with 10 mm or more rain5053198325
25 mm (0.98 in): Days with 25 mm or more rain5024201113
50 mm (1.97 in): Days with 50 mm or more rain47719792
100 mm (3.94 in): Days with 100 mm or more rain10219981
10 cm (3.9 in): Days with 10 cm or more snowfall451119964
25 cm (9.8 in): Days with 25 cm or more snowfall25319783
50 cm (19.7 in): Days with 50 cm or more snowfall4119781

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.

Download the Data

  • Data for Norton W 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).