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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Rock Falls 3 NE Threshold Days by Year (USC00117370)

6 fixed thresholds counted per year at Rock Falls 3 NE (USC00117370): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rock Falls 3 NE Thresholds

  • Rock Falls 3 NE: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1998 with 46.
  • Rock Falls 3 NE: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 2009 with 19.
  • Rock Falls 3 NE: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 2016 with 5.
  • Rock Falls 3 NE: days with 10 cm (3.9 in) or more of snowfall in 24 years, most in 2000 with 5.
  • 6 fixed thresholds have at least one qualifying day at Rock Falls 3 NE.
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rock Falls 3 NE Days per year at Rock Falls 3 NE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 46 in 1998. 02040601992: 361993: 371994: 321995: 301996: 361997: 251998: 461999: 302000: 312001: 332002: 262003: 202006: 352007: 302008: 322009: 462010: 292011: 352012: 232013: 272014: 242015: 372016: 282017: 302018: 332019: 412020: 332021: 201992199519982001200620092012201520182021
Days per year at Rock Falls 3 NE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 46 in 1998.
Days with 10 mm (0.39 in) or more of precipitation per year at Rock Falls 3 NE
YearDaysDecade average
19923634
19933734
19943234
19953034
19963634
19972534
19984634
19993034
20003131.6
20013331.6
20022631.6
20032031.6
20063531.6
20073031.6
20083231.6
20094631.6
20102930.7
20113530.7
20122330.7
20132730.7
20142430.7
20153730.7
20162830.7
20173030.7
20183330.7
20194130.7
20203326.5
20212026.5
First to last qualifying date each year at Rock Falls 3 NE For each year, a bar from the first to the last day at Rock Falls 3 NE meeting 10 mm (0.39 in). 1992: 15 February 1992 to 31 December 19921993: 4 January 1993 to 26 December 19931994: 27 January 1994 to 7 December 19941995: 14 January 1995 to 11 November 19951996: 18 January 1996 to 15 December 19961997: 21 February 1997 to 25 December 19971998: 7 January 1998 to 7 December 19981999: 22 January 1999 to 10 December 19992000: 20 January 2000 to 7 November 20002001: 30 January 2001 to 13 December 20012002: 31 January 2002 to 19 December 20022003: 29 March 2003 to 18 November 20032006: 2 January 2006 to 21 December 20062007: 24 February 2007 to 23 December 20072008: 4 February 2008 to 28 December 20082009: 12 February 2009 to 25 December 20092010: 24 January 2010 to 31 December 20102011: 2 February 2011 to 14 December 20112012: 21 January 2012 to 21 December 20122013: 11 January 2013 to 22 December 20132014: 11 January 2014 to 14 October 20142015: 1 February 2015 to 29 December 20152016: 9 January 2016 to 25 December 20162017: 17 January 2017 to 22 October 20172018: 22 January 2018 to 28 December 20182019: 1 January 2019 to 29 December 20192020: 11 January 2020 to 30 December 20202021: 2 January 2021 to 11 December 20211992199620002006201020142018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rock Falls 3 NE meeting 10 mm (0.39 in).
First to last qualifying date each year at Rock Falls 3 NE
YearFirst dateLast date
19921992-02-151992-12-31
19931993-01-041993-12-26
19941994-01-271994-12-07
19951995-01-141995-11-11
19961996-01-181996-12-15
19971997-02-211997-12-25
19981998-01-071998-12-07
19991999-01-221999-12-10
20002000-01-202000-11-07
20012001-01-302001-12-13
20022002-01-312002-12-19
20032003-03-292003-11-18
20062006-01-022006-12-21
20072007-02-242007-12-23
20082008-02-042008-12-28
20092009-02-122009-12-25
20102010-01-242010-12-31
20112011-02-022011-12-14
20122012-01-212012-12-21
20132013-01-112013-12-22
20142014-01-112014-10-14
20152015-02-012015-12-29
20162016-01-092016-12-25
20172017-01-172017-10-22
20182018-01-222018-12-28
20192019-01-012019-12-29
20202020-01-112020-12-30
20212021-01-022021-12-11

Every Fixed Threshold

Fixed thresholds at Rock Falls 3 NE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2846199820
25 mm (0.98 in): Days with 25 mm or more rain281920095
50 mm (1.97 in): Days with 50 mm or more rain24520162
100 mm (3.94 in): Days with 100 mm or more rain3119961
10 cm (3.9 in): Days with 10 cm or more snowfall24520002
25 cm (9.8 in): Days with 25 cm or more snowfall2120061

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1992.

Download the Data

  • Data for Rock Falls 3 NE 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).