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Built 2026-10-19 (19 October 2026)

Chatsworth Threshold Days by Year (USC00111447)

6 fixed thresholds counted per year at Chatsworth (USC00111447): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chatsworth Thresholds

  • Chatsworth: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 2009 with 42.
  • Chatsworth: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 2021 with 15.
  • Chatsworth: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 2008 with 6.
  • Chatsworth: days with 10 cm (3.9 in) or more of snowfall in 20 years, most in 2000 with 5.
  • 6 fixed thresholds have at least one qualifying day at Chatsworth.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Chatsworth Days per year at Chatsworth with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 2009. 02040601996: 321997: 211998: 311999: 282000: 242001: 302002: 312003: 302004: 382005: 302006: 332007: 362008: 362009: 422010: 332011: 312012: 252013: 232014: 322015: 382016: 382017: 372018: 302019: 402020: 332021: 382022: 352023: 332024: 322025: 232026: 919962000200420082012201620202024
Days per year at Chatsworth with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 2009.
Days with 10 mm (0.39 in) or more of precipitation per year at Chatsworth
YearDaysDecade average
19963228
19972128
19983128
19992828
20002433
20013033
20023133
20033033
20043833
20053033
20063333
20073633
20083633
20094233
20103332.7
20113132.7
20122532.7
20132332.7
20143232.7
20153832.7
20163832.7
20173732.7
20183032.7
20194032.7
20203329
20213829
20223529
20233329
20243229
20252329
2026929
First to last qualifying date each year at Chatsworth For each year, a bar from the first to the last day at Chatsworth meeting 10 mm (0.39 in). 1996: 15 February 1996 to 24 December 19961997: 27 February 1997 to 28 November 19971998: 8 January 1998 to 7 December 19981999: 2 January 1999 to 5 December 19992000: 20 January 2000 to 26 November 20002001: 30 January 2001 to 17 December 20012002: 30 January 2002 to 25 December 20022003: 21 March 2003 to 5 December 20032004: 5 January 2004 to 7 December 20042005: 2 January 2005 to 28 November 20052006: 13 January 2006 to 31 December 20062007: 5 January 2007 to 16 December 20072008: 1 January 2008 to 28 December 20082009: 12 February 2009 to 25 December 20092010: 22 February 2010 to 12 December 20102011: 1 January 2011 to 15 December 20112012: 20 January 2012 to 20 December 20122013: 11 January 2013 to 22 December 20132014: 11 January 2014 to 23 December 20142015: 4 January 2015 to 29 December 20152016: 3 February 2016 to 5 December 20162017: 3 January 2017 to 19 November 20172018: 20 February 2018 to 31 December 20182019: 1 January 2019 to 27 November 20192020: 11 January 2020 to 12 December 20202021: 31 January 2021 to 11 December 20212022: 2 February 2022 to 15 December 20222023: 19 January 2023 to 29 December 20232024: 13 January 2024 to 31 December 20242025: 1 January 2025 to 29 December 20252026: 20 February 2026 to 28 April 202619962000200420082012201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chatsworth meeting 10 mm (0.39 in).
First to last qualifying date each year at Chatsworth
YearFirst dateLast date
19961996-02-151996-12-24
19971997-02-271997-11-28
19981998-01-081998-12-07
19991999-01-021999-12-05
20002000-01-202000-11-26
20012001-01-302001-12-17
20022002-01-302002-12-25
20032003-03-212003-12-05
20042004-01-052004-12-07
20052005-01-022005-11-28
20062006-01-132006-12-31
20072007-01-052007-12-16
20082008-01-012008-12-28
20092009-02-122009-12-25
20102010-02-222010-12-12
20112011-01-012011-12-15
20122012-01-202012-12-20
20132013-01-112013-12-22
20142014-01-112014-12-23
20152015-01-042015-12-29
20162016-02-032016-12-05
20172017-01-032017-11-19
20182018-02-202018-12-31
20192019-01-012019-11-27
20202020-01-112020-12-12
20212021-01-312021-12-11
20222022-02-022022-12-15
20232023-01-192023-12-29
20242024-01-132024-12-31
20252025-01-012025-12-29
20262026-02-202026-04-28

Every Fixed Threshold

Fixed thresholds at Chatsworth
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain314220099
25 mm (0.98 in): Days with 25 mm or more rain311520213
50 mm (1.97 in): Days with 50 mm or more rain25620082
100 mm (3.94 in): Days with 100 mm or more rain4120061
10 cm (3.9 in): Days with 10 cm or more snowfall20520001
25 cm (9.8 in): Days with 25 cm or more snowfall2119991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1996.

Download the Data

  • Data for Chatsworth 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 (2026-10-12).