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Built 2026-10-19 (19 October 2026)

Richmond State Police Threshold Days by Year (USC00156810)

5 fixed thresholds counted per year at Richmond State Police (USC00156810): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Richmond State Police Thresholds

  • Richmond State Police: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 2004 with 54.
  • Richmond State Police: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 2011 with 26.
  • Richmond State Police: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1984 with 5.
  • Richmond State Police: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 2015 with 2.
  • 5 fixed thresholds have at least one qualifying day at Richmond State Police.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Richmond State Police Days per year at Richmond State Police with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 54 in 2004. 02040601982: 391983: 371984: 461985: 391986: 321987: 301991: 441992: 311994: 281995: 211996: 381997: 301998: 351999: 242001: 362002: 252003: 402004: 542005: 272006: 352007: 462009: 452010: 322011: 532012: 352013: 472015: 542016: 392017: 461982198519911995199820022005200920122016
Days per year at Richmond State Police with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 54 in 2004.
Days with 10 mm (0.39 in) or more of precipitation per year at Richmond State Police
YearDaysDecade average
19823937.2
19833737.2
19844637.2
19853937.2
19863237.2
19873037.2
19914431.4
19923131.4
19942831.4
19952131.4
19963831.4
19973031.4
19983531.4
19992431.4
20013638.5
20022538.5
20034038.5
20045438.5
20052738.5
20063538.5
20074638.5
20094538.5
20103243.7
20115343.7
20123543.7
20134743.7
20155443.7
20163943.7
20174643.7
First to last qualifying date each year at Richmond State Police For each year, a bar from the first to the last day at Richmond State Police meeting 10 mm (0.39 in). 1982: 1 January 1982 to 16 December 19821983: 22 January 1983 to 10 December 19831984: 5 January 1984 to 28 November 19841985: 1 January 1985 to 13 December 19851986: 13 January 1986 to 9 December 19861987: 18 January 1987 to 26 December 19871991: 6 January 1991 to 23 December 19911992: 3 January 1992 to 31 December 19921994: 3 January 1994 to 10 December 19941995: 14 February 1995 to 13 November 19951996: 6 January 1996 to 16 December 19961997: 26 January 1997 to 30 November 19971998: 5 January 1998 to 11 December 19981999: 8 January 1999 to 12 December 19992001: 14 February 2001 to 13 December 20012002: 9 March 2002 to 5 November 20022003: 8 February 2003 to 29 December 20032004: 2 January 2004 to 23 December 20042005: 1 January 2005 to 15 December 20052006: 2 January 2006 to 31 December 20062007: 5 January 2007 to 15 December 20072009: 3 January 2009 to 19 December 20092010: 17 January 2010 to 12 December 20102011: 1 January 2011 to 27 December 20112012: 11 January 2012 to 20 December 20122013: 13 January 2013 to 29 December 20132015: 3 January 2015 to 28 December 20152016: 3 February 2016 to 27 December 20162017: 3 January 2017 to 23 December 201719821986199419982003200720122017JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Richmond State Police meeting 10 mm (0.39 in).
First to last qualifying date each year at Richmond State Police
YearFirst dateLast date
19821982-01-011982-12-16
19831983-01-221983-12-10
19841984-01-051984-11-28
19851985-01-011985-12-13
19861986-01-131986-12-09
19871987-01-181987-12-26
19911991-01-061991-12-23
19921992-01-031992-12-31
19941994-01-031994-12-10
19951995-02-141995-11-13
19961996-01-061996-12-16
19971997-01-261997-11-30
19981998-01-051998-12-11
19991999-01-081999-12-12
20012001-02-142001-12-13
20022002-03-092002-11-05
20032003-02-082003-12-29
20042004-01-022004-12-23
20052005-01-012005-12-15
20062006-01-022006-12-31
20072007-01-052007-12-15
20092009-01-032009-12-19
20102010-01-172010-12-12
20112011-01-012011-12-27
20122012-01-112012-12-20
20132013-01-132013-12-29
20152015-01-032015-12-28
20162016-02-032016-12-27
20172017-01-032017-12-23

Every Fixed Threshold

Fixed thresholds at Richmond State Police
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2954200446
25 mm (0.98 in): Days with 25 mm or more rain292620117
50 mm (1.97 in): Days with 50 mm or more rain26519843
100 mm (3.94 in): Days with 100 mm or more rain6220152
10 cm (3.9 in): Days with 10 cm or more snowfall4119851

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1982.

Download the Data

  • Data for Richmond State Police 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).