Built 2026-10-19 (19 October 2026)

Willowdale 1 SW Threshold Days by Year (USC00148911)

6 fixed thresholds counted per year at Willowdale 1 SW (USC00148911): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Willowdale 1 SW Thresholds

  • Willowdale 1 SW: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 2013 with 36.
  • Willowdale 1 SW: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 2018 with 20.
  • Willowdale 1 SW: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 2018 with 7.
  • Willowdale 1 SW: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 2007 with 5.
  • 6 fixed thresholds have at least one qualifying day at Willowdale 1 SW.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Willowdale 1 SW Days per year at Willowdale 1 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 36 in 2013. 0102030401993: 271994: 181996: 331997: 321998: 241999: 282000: 322001: 212002: 252003: 192004: 302006: 272007: 312008: 332009: 242010: 282011: 172012: 152013: 362014: 292016: 292017: 282018: 332019: 282020: 212021: 252022: 172023: 252024: 242025: 342026: 2319931998200220072011201620202024
Days per year at Willowdale 1 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 36 in 2013.
Days with 10 mm (0.39 in) or more of precipitation per year at Willowdale 1 SW
YearDaysDecade average
19932727
19941827
19963327
19973227
19982427
19992827
20003226.9
20012126.9
20022526.9
20031926.9
20043026.9
20062726.9
20073126.9
20083326.9
20092426.9
20102827
20111727
20121527
20133627
20142927
20162927
20172827
20183327
20192827
20202124.1
20212524.1
20221724.1
20232524.1
20242424.1
20253424.1
20262324.1
First to last qualifying date each year at Willowdale 1 SW For each year, a bar from the first to the last day at Willowdale 1 SW meeting 10 mm (0.39 in). 1993: 8 January 1993 to 16 October 19931994: 22 February 1994 to 31 December 19941996: 15 March 1996 to 1 December 19961997: 7 February 1997 to 24 December 19971998: 4 January 1998 to 30 November 19981999: 30 January 1999 to 5 December 19992000: 28 January 2000 to 6 November 20002001: 28 January 2001 to 18 September 20012002: 30 January 2002 to 4 December 20022003: 24 February 2003 to 13 December 20032004: 17 January 2004 to 24 November 20042006: 20 March 2006 to 31 December 20062007: 21 January 2007 to 15 December 20072008: 17 February 2008 to 11 November 20082009: 8 March 2009 to 29 October 20092010: 21 February 2010 to 13 November 20102011: 8 March 2011 to 20 December 20112012: 3 February 2012 to 11 November 20122013: 10 January 2013 to 22 December 20132014: 5 February 2014 to 15 December 20142016: 27 March 2016 to 26 December 20162017: 15 January 2017 to 7 October 20172018: 19 March 2018 to 27 December 20182019: 12 January 2019 to 28 December 20192020: 29 January 2020 to 30 December 20202021: 25 January 2021 to 3 November 20212022: 7 March 2022 to 13 December 20222023: 27 February 2023 to 24 December 20232024: 9 January 2024 to 19 November 20242025: 10 January 2025 to 21 November 20252026: 14 February 2026 to 15 October 202619931998200220072011201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Willowdale 1 SW meeting 10 mm (0.39 in).
First to last qualifying date each year at Willowdale 1 SW
YearFirst dateLast date
19931993-01-081993-10-16
19941994-02-221994-12-31
19961996-03-151996-12-01
19971997-02-071997-12-24
19981998-01-041998-11-30
19991999-01-301999-12-05
20002000-01-282000-11-06
20012001-01-282001-09-18
20022002-01-302002-12-04
20032003-02-242003-12-13
20042004-01-172004-11-24
20062006-03-202006-12-31
20072007-01-212007-12-15
20082008-02-172008-11-11
20092009-03-082009-10-29
20102010-02-212010-11-13
20112011-03-082011-12-20
20122012-02-032012-11-11
20132013-01-102013-12-22
20142014-02-052014-12-15
20162016-03-272016-12-26
20172017-01-152017-10-07
20182018-03-192018-12-27
20192019-01-122019-12-28
20202020-01-292020-12-30
20212021-01-252021-11-03
20222022-03-072022-12-13
20232023-02-272023-12-24
20242024-01-092024-11-19
20252025-01-102025-11-21
20262026-02-142026-10-15

Every Fixed Threshold

Fixed thresholds at Willowdale 1 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3136201323
25 mm (0.98 in): Days with 25 mm or more rain312020188
50 mm (1.97 in): Days with 50 mm or more rain30720182
100 mm (3.94 in): Days with 100 mm or more rain5119971
10 cm (3.9 in): Days with 10 cm or more snowfall16520071
25 cm (9.8 in): Days with 25 cm or more snowfall1119991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1993.

Download the Data

  • Data for Willowdale 1 SW 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).