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Built 2026-10-19 (19 October 2026)

Randolph 4 WNW Threshold Days by Year (USC00146679)

5 fixed thresholds counted per year at Randolph 4 WNW (USC00146679): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Randolph 4 WNW Thresholds

  • Randolph 4 WNW: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1993 with 38.
  • Randolph 4 WNW: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1998 with 14.
  • Randolph 4 WNW: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 2007 with 5.
  • Randolph 4 WNW: days with 10 cm (3.9 in) or more of snowfall in 14 years, most in 2007 with 3.
  • 5 fixed thresholds have at least one qualifying day at Randolph 4 WNW.
23 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Randolph 4 WNW Days per year at Randolph 4 WNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1993. 0102030401990: 271991: 181992: 291993: 381994: 181995: 261996: 211997: 201998: 321999: 242000: 212001: 272002: 202003: 222004: 232005: 292006: 192007: 272008: 262009: 282010: 292013: 212015: 3019901993199619992002200520082013
Days per year at Randolph 4 WNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1993.
Days with 10 mm (0.39 in) or more of precipitation per year at Randolph 4 WNW
YearDaysDecade average
19902725.3
19911825.3
19922925.3
19933825.3
19941825.3
19952625.3
19962125.3
19972025.3
19983225.3
19992425.3
20002124.2
20012724.2
20022024.2
20032224.2
20042324.2
20052924.2
20061924.2
20072724.2
20082624.2
20092824.2
20102926.7
20132126.7
20153026.7
First to last qualifying date each year at Randolph 4 WNW For each year, a bar from the first to the last day at Randolph 4 WNW meeting 10 mm (0.39 in). 1990: 4 January 1990 to 27 November 19901991: 17 March 1991 to 20 December 19911992: 12 February 1992 to 14 December 19921993: 20 January 1993 to 14 December 19931994: 27 January 1994 to 7 December 19941995: 6 January 1995 to 1 November 19951996: 25 March 1996 to 17 November 19961997: 4 February 1997 to 24 December 19971998: 4 January 1998 to 10 November 19981999: 31 January 1999 to 23 November 19992000: 23 February 2000 to 25 October 20002001: 29 January 2001 to 16 October 20012002: 30 January 2002 to 30 October 20022003: 14 February 2003 to 10 December 20032004: 26 January 2004 to 27 November 20042005: 3 January 2005 to 21 October 20052006: 21 March 2006 to 31 December 20062007: 21 January 2007 to 12 December 20072008: 6 February 2008 to 11 November 20082009: 8 March 2009 to 9 December 20092010: 9 March 2010 to 13 November 20102013: 8 April 2013 to 29 October 20132015: 1 February 2015 to 14 December 201519901993199619992002200520082013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Randolph 4 WNW meeting 10 mm (0.39 in).
First to last qualifying date each year at Randolph 4 WNW
YearFirst dateLast date
19901990-01-041990-11-27
19911991-03-171991-12-20
19921992-02-121992-12-14
19931993-01-201993-12-14
19941994-01-271994-12-07
19951995-01-061995-11-01
19961996-03-251996-11-17
19971997-02-041997-12-24
19981998-01-041998-11-10
19991999-01-311999-11-23
20002000-02-232000-10-25
20012001-01-292001-10-16
20022002-01-302002-10-30
20032003-02-142003-12-10
20042004-01-262004-11-27
20052005-01-032005-10-21
20062006-03-212006-12-31
20072007-01-212007-12-12
20082008-02-062008-11-11
20092009-03-082009-12-09
20102010-03-092010-11-13
20132013-04-082013-10-29
20152015-02-012015-12-14

Every Fixed Threshold

Fixed thresholds at Randolph 4 WNW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2338199330
25 mm (0.98 in): Days with 25 mm or more rain231419989
50 mm (1.97 in): Days with 50 mm or more rain17520071
100 mm (3.94 in): Days with 100 mm or more rain4119931
10 cm (3.9 in): Days with 10 cm or more snowfall14320072

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1990.

Download the Data

  • Data for Randolph 4 WNW 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).