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Built 2026-10-19 (19 October 2026)

St James Wwtp Threshold Days by Year (USC00217326)

17 fixed thresholds counted per year at St James Wwtp (USC00217326): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St James Wwtp Thresholds

  • St James Wwtp: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 2019 with 40.
  • St James Wwtp: days with 25 mm (0.98 in) or more of precipitation in 73 years, most in 2018 with 18.
  • St James Wwtp: days with 10 cm (3.9 in) or more of snowfall in 67 years, most in 2000 with 8.
  • St James Wwtp: nights with a minimum temperature at or below 0 C (32 F) in 63 years, most in 2018 with 186.
  • 17 fixed thresholds have at least one qualifying day at St James Wwtp.
59 years with a qualifying day
Days at or above 30 C (86 F) per year at St James Wwtp Days per year at St James Wwtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 63 in 1976. 0204060801959: 601960: 381963: 361964: 461965: 281966: 421967: 211968: 361969: 341970: 591971: 361972: 381973: 421974: 381975: 551976: 631977: 391978: 461979: 301980: 581981: 311982: 311983: 621990: 401991: 341992: 141993: 161994: 171995: 321996: 181997: 231998: 281999: 352000: 232001: 362002: 302003: 262004: 102006: 222007: 452008: 202009: 142010: 372011: 402012: 602013: 412014: 182015: 212016: 382017: 302018: 292019: 222020: 442021: 482022: 492023: 492024: 282025: 352026: 351959196719731979199119972003201020162022
Days per year at St James Wwtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 63 in 1976.
Days at or above 30 C (86 F) per year at St James Wwtp
YearDaysDecade average
19596060
19603835.1
19633635.1
19644635.1
19652835.1
19664235.1
19672135.1
19683635.1
19693435.1
19705944.6
19713644.6
19723844.6
19734244.6
19743844.6
19755544.6
19766344.6
19773944.6
19784644.6
19793044.6
19805845.5
19813145.5
19823145.5
19836245.5
19904025.7
19913425.7
19921425.7
19931625.7
19941725.7
19953225.7
19961825.7
19972325.7
19982825.7
19993525.7
20002325.1
20013625.1
20023025.1
20032625.1
20041025.1
20062225.1
20074525.1
20082025.1
20091425.1
20103733.6
20114033.6
20126033.6
20134133.6
20141833.6
20152133.6
20163833.6
20173033.6
20182933.6
20192233.6
20204441.1
20214841.1
20224941.1
20234941.1
20242841.1
20253541.1
20263541.1
First to last qualifying date each year at St James Wwtp For each year, a bar from the first to the last day at St James Wwtp meeting 30 C (86 F). 1959: 1 May 1959 to 9 September 19591960: 22 April 1960 to 7 September 19601963: 7 May 1963 to 6 October 19631964: 16 April 1964 to 9 September 19641965: 2 May 1965 to 25 August 19651966: 26 May 1966 to 10 September 19661967: 25 May 1967 to 17 August 19671968: 30 April 1968 to 24 August 19681969: 26 May 1969 to 4 October 19691970: 27 April 1970 to 21 September 19701971: 14 May 1971 to 8 September 19711972: 16 May 1972 to 19 September 19721973: 21 May 1973 to 31 August 19731974: 20 May 1974 to 27 September 19741975: 19 May 1975 to 14 October 19751976: 19 May 1976 to 30 September 19761977: 9 April 1977 to 8 September 19771978: 19 May 1978 to 12 September 19781979: 17 May 1979 to 4 September 19791980: 20 April 1980 to 19 September 19801981: 27 April 1981 to 13 August 19811982: 4 May 1982 to 21 August 19821983: 10 June 1983 to 27 September 19831990: 7 May 1990 to 28 September 19901991: 7 April 1991 to 31 August 19911992: 1 May 1992 to 3 October 19921993: 12 June 1993 to 8 October 19931994: 19 April 1994 to 15 September 19941995: 16 June 1995 to 13 October 19951996: 18 May 1996 to 22 August 19961997: 15 June 1997 to 8 October 19971998: 15 May 1998 to 19 September 19981999: 29 May 1999 to 26 September 19992000: 5 May 2000 to 30 September 20002001: 15 May 2001 to 3 October 20012002: 16 April 2002 to 9 September 20022003: 15 April 2003 to 7 September 20032004: 19 April 2004 to 14 September 20042006: 24 May 2006 to 4 October 20062007: 11 May 2007 to 7 October 20072008: 26 May 2008 to 27 September 20082009: 24 April 2009 to 19 September 20092010: 23 May 2010 to 21 September 20102011: 11 May 2011 to 5 October 20112012: 15 May 2012 to 12 September 20122013: 14 May 2013 to 28 September 20132014: 30 May 2014 to 25 August 20142015: 10 June 2015 to 12 October 20152016: 7 May 2016 to 22 September 20162017: 9 May 2017 to 25 September 20172018: 25 May 2018 to 4 October 20182019: 1 June 2019 to 1 October 20192020: 2 May 2020 to 26 September 20202021: 6 April 2021 to 30 September 20212022: 10 May 2022 to 21 September 20222023: 13 April 2023 to 3 October 20232024: 14 April 2024 to 1 October 20242025: 10 May 2025 to 5 October 20252026: 23 April 2026 to 13 October 202619591969197719911999200820162024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St James Wwtp meeting 30 C (86 F).
First to last qualifying date each year at St James Wwtp
YearFirst dateLast date
19591959-05-011959-09-09
19601960-04-221960-09-07
19631963-05-071963-10-06
19641964-04-161964-09-09
19651965-05-021965-08-25
19661966-05-261966-09-10
19671967-05-251967-08-17
19681968-04-301968-08-24
19691969-05-261969-10-04
19701970-04-271970-09-21
19711971-05-141971-09-08
19721972-05-161972-09-19
19731973-05-211973-08-31
19741974-05-201974-09-27
19751975-05-191975-10-14
19761976-05-191976-09-30
19771977-04-091977-09-08
19781978-05-191978-09-12
19791979-05-171979-09-04
19801980-04-201980-09-19
19811981-04-271981-08-13
19821982-05-041982-08-21
19831983-06-101983-09-27
19901990-05-071990-09-28
19911991-04-071991-08-31
19921992-05-011992-10-03
19931993-06-121993-10-08
19941994-04-191994-09-15
19951995-06-161995-10-13
19961996-05-181996-08-22
19971997-06-151997-10-08
19981998-05-151998-09-19
19991999-05-291999-09-26
20002000-05-052000-09-30
20012001-05-152001-10-03
20022002-04-162002-09-09
20032003-04-152003-09-07
20042004-04-192004-09-14
20062006-05-242006-10-04
20072007-05-112007-10-07
20082008-05-262008-09-27
20092009-04-242009-09-19
20102010-05-232010-09-21
20112011-05-112011-10-05
20122012-05-152012-09-12
20132013-05-142013-09-28
20142014-05-302014-08-25
20152015-06-102015-10-12
20162016-05-072016-09-22
20172017-05-092017-09-25
20182018-05-252018-10-04
20192019-06-012019-10-01
20202020-05-022020-09-26
20212021-04-062021-09-30
20222022-05-102022-09-21
20232023-04-132023-10-03
20242024-04-142024-10-01
20252025-05-102025-10-05
20262026-04-232026-10-13

Every Fixed Threshold

Fixed thresholds at St James Wwtp
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5963197635
35 C (95 F): Days481219831
90 F (32.2 C): Days593919599
100 F (37.8 C): Days12319761
0 C (32 F): Ice days (max59100199637
0 C (32 F): Frost days (min63186201896
-10 C (14 F): Days with min6398201438
-20 C (-4 F): Days with min6342197812
-30 C (-22 F): Days with min24719792
20 C (68 F): Tropical nights (min632919838
25 C (77 F): Days with min19319691
10 mm (0.39 in): Days with 10 mm or more rain7340201916
25 mm (0.98 in): Days with 25 mm or more rain731820185
50 mm (1.97 in): Days with 50 mm or more rain51720162
100 mm (3.94 in): Days with 100 mm or more rain7219531
10 cm (3.9 in): Days with 10 cm or more snowfall67820002
25 cm (9.8 in): Days with 25 cm or more snowfall17420181

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

  • Data for St James Wwtp 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).