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Built 2026-10-19 (19 October 2026)

Thorndale Threshold Days by Year (USC00419001)

4 fixed thresholds counted per year at Thorndale (USC00419001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Thorndale Thresholds

  • Thorndale: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 2004 with 45.
  • Thorndale: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 2004 with 20.
  • Thorndale: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 2015 with 8.
  • Thorndale: days with 100 mm (3.94 in) or more of precipitation in 15 years, most in 2015 with 3.
  • 4 fixed thresholds have at least one qualifying day at Thorndale.
48 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Thorndale Days per year at Thorndale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 2004. 02040601968: 301969: 261970: 291971: 251972: 231973: 361974: 281975: 321976: 341977: 151978: 261979: 291980: 251981: 301982: 241983: 251984: 311987: 301988: 141989: 211990: 231991: 341992: 331993: 311994: 241995: 191996: 231997: 281998: 291999: 182000: 312001: 362002: 392003: 242004: 452005: 222006: 222007: 372008: 232009: 292010: 222011: 142012: 192013: 272014: 182015: 302016: 362017: 331968197319781983199019952000200520102015
Days per year at Thorndale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 2004.
Days with 10 mm (0.39 in) or more of precipitation per year at Thorndale
YearDaysDecade average
19683028
19692628
19702927.7
19712527.7
19722327.7
19733627.7
19742827.7
19753227.7
19763427.7
19771527.7
19782627.7
19792927.7
19802525
19813025
19822425
19832525
19843125
19873025
19881425
19892125
19902326.2
19913426.2
19923326.2
19933126.2
19942426.2
19951926.2
19962326.2
19972826.2
19982926.2
19991826.2
20003130.8
20013630.8
20023930.8
20032430.8
20044530.8
20052230.8
20062230.8
20073730.8
20082330.8
20092930.8
20102224.9
20111424.9
20121924.9
20132724.9
20141824.9
20153024.9
20163624.9
20173324.9
First to last qualifying date each year at Thorndale For each year, a bar from the first to the last day at Thorndale meeting 10 mm (0.39 in). 1968: 5 February 1968 to 1 December 19681969: 15 January 1969 to 29 December 19691970: 5 January 1970 to 24 October 19701971: 25 February 1971 to 15 December 19711972: 1 January 1972 to 25 November 19721973: 2 January 1973 to 19 December 19731974: 21 February 1974 to 11 December 19741975: 3 January 1975 to 24 December 19751976: 25 January 1976 to 11 December 19761977: 14 January 1977 to 30 November 19771978: 11 January 1978 to 31 December 19781979: 10 January 1979 to 28 December 19791980: 17 January 1980 to 8 December 19801981: 19 January 1981 to 8 November 19811982: 20 January 1982 to 20 December 19821983: 18 January 1983 to 3 December 19831984: 9 January 1984 to 31 December 19841987: 17 January 1987 to 19 December 19871988: 2 January 1988 to 10 December 19881989: 19 January 1989 to 22 November 19891990: 18 January 1990 to 21 November 19901991: 2 January 1991 to 27 December 19911992: 2 January 1992 to 15 December 19921993: 10 January 1993 to 22 December 19931994: 11 February 1994 to 29 December 19941995: 13 January 1995 to 18 November 19951996: 6 April 1996 to 16 December 19961997: 6 January 1997 to 24 December 19971998: 7 January 1998 to 11 December 19981999: 13 March 1999 to 12 December 19992000: 7 January 2000 to 27 December 20002001: 11 January 2001 to 16 December 20012002: 5 January 2002 to 31 December 20022003: 12 January 2003 to 29 December 20032004: 17 January 2004 to 30 November 20042005: 3 January 2005 to 1 November 20052006: 29 January 2006 to 30 December 20062007: 4 January 2007 to 14 December 20072008: 19 January 2008 to 12 November 20082009: 10 February 2009 to 2 December 20092010: 16 January 2010 to 25 December 20102011: 8 January 2011 to 22 December 20112012: 9 January 2012 to 27 November 20122013: 1 January 2013 to 21 December 20132014: 9 March 2014 to 20 December 20142015: 1 January 2015 to 28 December 20152016: 7 January 2016 to 6 December 20162017: 2 January 2017 to 19 December 201719681974198019881994200020062012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Thorndale meeting 10 mm (0.39 in).
First to last qualifying date each year at Thorndale
YearFirst dateLast date
19681968-02-051968-12-01
19691969-01-151969-12-29
19701970-01-051970-10-24
19711971-02-251971-12-15
19721972-01-011972-11-25
19731973-01-021973-12-19
19741974-02-211974-12-11
19751975-01-031975-12-24
19761976-01-251976-12-11
19771977-01-141977-11-30
19781978-01-111978-12-31
19791979-01-101979-12-28
19801980-01-171980-12-08
19811981-01-191981-11-08
19821982-01-201982-12-20
19831983-01-181983-12-03
19841984-01-091984-12-31
19871987-01-171987-12-19
19881988-01-021988-12-10
19891989-01-191989-11-22
19901990-01-181990-11-21
19911991-01-021991-12-27
19921992-01-021992-12-15
19931993-01-101993-12-22
19941994-02-111994-12-29
19951995-01-131995-11-18
19961996-04-061996-12-16
19971997-01-061997-12-24
19981998-01-071998-12-11
19991999-03-131999-12-12
20002000-01-072000-12-27
20012001-01-112001-12-16
20022002-01-052002-12-31
20032003-01-122003-12-29
20042004-01-172004-11-30
20052005-01-032005-11-01
20062006-01-292006-12-30
20072007-01-042007-12-14
20082008-01-192008-11-12
20092009-02-102009-12-02
20102010-01-162010-12-25
20112011-01-082011-12-22
20122012-01-092012-11-27
20132013-01-012013-12-21
20142014-03-092014-12-20
20152015-01-012015-12-28
20162016-01-072016-12-06
20172017-01-022017-12-19

Every Fixed Threshold

Fixed thresholds at Thorndale
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4845200433
25 mm (0.98 in): Days with 25 mm or more rain4820200410
50 mm (1.97 in): Days with 50 mm or more rain44820155
100 mm (3.94 in): Days with 100 mm or more rain15320152

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Thorndale 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).