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Built 2026-10-19 (19 October 2026)

Royal 2SE Threshold Days by Year (USC00257351)

6 fixed thresholds counted per year at Royal 2SE (USC00257351): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Royal 2SE Thresholds

  • Royal 2SE: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1995 with 33.
  • Royal 2SE: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1995 with 13.
  • Royal 2SE: days with 10 cm (3.9 in) or more of snowfall in 25 years, most in 2008 with 8.
  • Royal 2SE: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1995 with 4.
  • 6 fixed thresholds have at least one qualifying day at Royal 2SE.
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Royal 2SE Days per year at Royal 2SE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1995. 0102030401995: 331997: 181999: 212000: 142001: 322002: 212003: 202004: 192005: 212006: 222007: 322008: 272009: 232010: 242011: 242012: 92013: 252014: 222015: 212016: 302017: 252019: 242020: 132021: 182022: 142023: 262024: 212026: 41995200020032006200920122015201920222026
Days per year at Royal 2SE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1995.
Days with 10 mm (0.39 in) or more of precipitation per year at Royal 2SE
YearDaysDecade average
19953324
19971824
19992124
20001423.1
20013223.1
20022123.1
20032023.1
20041923.1
20052123.1
20062223.1
20073223.1
20082723.1
20092323.1
20102422.7
20112422.7
2012922.7
20132522.7
20142222.7
20152122.7
20163022.7
20172522.7
20192422.7
20201316
20211816
20221416
20232616
20242116
2026416
First to last qualifying date each year at Royal 2SE For each year, a bar from the first to the last day at Royal 2SE meeting 10 mm (0.39 in). 1995: 28 January 1995 to 1 November 19951997: 4 February 1997 to 15 November 19971999: 28 March 1999 to 15 December 19992000: 24 February 2000 to 12 November 20002001: 14 January 2001 to 27 November 20012002: 10 February 2002 to 30 October 20022003: 15 February 2003 to 11 October 20032004: 6 February 2004 to 18 November 20042005: 13 February 2005 to 1 December 20052006: 20 March 2006 to 31 December 20062007: 21 January 2007 to 2 December 20072008: 21 January 2008 to 12 November 20082009: 9 February 2009 to 26 December 20092010: 5 February 2010 to 26 October 20102011: 10 January 2011 to 8 October 20112012: 4 February 2012 to 2 August 20122013: 30 March 2013 to 6 November 20132014: 29 April 2014 to 15 December 20142015: 19 April 2015 to 17 November 20152016: 2 February 2016 to 28 November 20162017: 25 January 2017 to 7 October 20172019: 13 March 2019 to 29 December 20192020: 20 March 2020 to 9 November 20202021: 26 January 2021 to 28 October 20212022: 30 March 2022 to 30 December 20222023: 3 January 2023 to 26 December 20232024: 9 January 2024 to 31 December 20242026: 26 May 2026 to 2 September 20261995200120052009201320172022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Royal 2SE meeting 10 mm (0.39 in).
First to last qualifying date each year at Royal 2SE
YearFirst dateLast date
19951995-01-281995-11-01
19971997-02-041997-11-15
19991999-03-281999-12-15
20002000-02-242000-11-12
20012001-01-142001-11-27
20022002-02-102002-10-30
20032003-02-152003-10-11
20042004-02-062004-11-18
20052005-02-132005-12-01
20062006-03-202006-12-31
20072007-01-212007-12-02
20082008-01-212008-11-12
20092009-02-092009-12-26
20102010-02-052010-10-26
20112011-01-102011-10-08
20122012-02-042012-08-02
20132013-03-302013-11-06
20142014-04-292014-12-15
20152015-04-192015-11-17
20162016-02-022016-11-28
20172017-01-252017-10-07
20192019-03-132019-12-29
20202020-03-202020-11-09
20212021-01-262021-10-28
20222022-03-302022-12-30
20232023-01-032023-12-26
20242024-01-092024-12-31
20262026-05-262026-09-02

Every Fixed Threshold

Fixed thresholds at Royal 2SE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain283319954
25 mm (0.98 in): Days with 25 mm or more rain281319952
50 mm (1.97 in): Days with 50 mm or more rain16419951
100 mm (3.94 in): Days with 100 mm or more rain1119951
10 cm (3.9 in): Days with 10 cm or more snowfall25820081
25 cm (9.8 in): Days with 25 cm or more snowfall9320012

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1995.

Download the Data

  • Data for Royal 2SE 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 (2026-10-14).