Built 2026-10-18 (18 October 2026)

Amber Threshold Days by Year

5 fixed thresholds counted per year at Amber (USC00340200): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Amber Thresholds

  • Amber: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 2015 with 39.
  • Amber: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 2017 with 15.
  • Amber: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 2015 with 6.
  • Amber: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1986 with 1.
  • 5 fixed thresholds have at least one qualifying day at Amber.
26 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Amber Days per year at Amber with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 2015. 0102030401986: 311987: 311988: 231989: 241990: 321991: 311992: 321993: 311994: 241995: 281996: 331997: 321998: 241999: 222000: 282001: 182002: 292003: 192004: 322005: 192010: 202011: 192014: 182015: 392016: 172017: 30198619891992199519982001200420112016
Days per year at Amber with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 2015.
Days with 10 mm (0.39 in) or more of precipitation per year at Amber
YearDaysDecade average
19863127.3
19873127.3
19882327.3
19892427.3
19903228.9
19913128.9
19923228.9
19933128.9
19942428.9
19952828.9
19963328.9
19973228.9
19982428.9
19992228.9
20002824.2
20011824.2
20022924.2
20031924.2
20043224.2
20051924.2
20102023.8
20111923.8
20141823.8
20153923.8
20161723.8
20173023.8
First to last qualifying date each year at Amber For each year, a bar from the first to the last day at Amber meeting 10 mm (0.39 in). 1986: 3 February 1986 to 9 December 19861987: 10 January 1987 to 26 December 19871988: 6 January 1988 to 20 November 19881989: 25 January 1989 to 30 October 19891990: 18 January 1990 to 18 December 19901991: 10 January 1991 to 20 December 19911992: 13 January 1992 to 14 December 19921993: 9 January 1993 to 13 December 19931994: 20 February 1994 to 8 December 19941995: 22 January 1995 to 19 December 19951996: 18 March 1996 to 29 November 19961997: 7 February 1997 to 24 December 19971998: 4 January 1998 to 4 December 19981999: 30 January 1999 to 9 December 19992000: 23 February 2000 to 27 December 20002001: 28 January 2001 to 13 October 20012002: 5 January 2002 to 17 December 20022003: 27 March 2003 to 13 December 20032004: 17 January 2004 to 7 December 20042005: 4 January 2005 to 11 October 20052010: 21 January 2010 to 13 November 20102011: 2 February 2011 to 20 December 20112014: 16 March 2014 to 15 December 20142015: 2 January 2015 to 28 December 20152016: 24 February 2016 to 3 November 20162017: 16 January 2017 to 20 December 20171986199019941998200220102016JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Amber meeting 10 mm (0.39 in).
First to last qualifying date each year at Amber
YearFirst dateLast date
19861986-02-031986-12-09
19871987-01-101987-12-26
19881988-01-061988-11-20
19891989-01-251989-10-30
19901990-01-181990-12-18
19911991-01-101991-12-20
19921992-01-131992-12-14
19931993-01-091993-12-13
19941994-02-201994-12-08
19951995-01-221995-12-19
19961996-03-181996-11-29
19971997-02-071997-12-24
19981998-01-041998-12-04
19991999-01-301999-12-09
20002000-02-232000-12-27
20012001-01-282001-10-13
20022002-01-052002-12-17
20032003-03-272003-12-13
20042004-01-172004-12-07
20052005-01-042005-10-11
20102010-01-212010-11-13
20112011-02-022011-12-20
20142014-03-162014-12-15
20152015-01-022015-12-28
20162016-02-242016-11-03
20172017-01-162017-12-20

Every Fixed Threshold

Fixed thresholds at Amber
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2639201530
25 mm (0.98 in): Days with 25 mm or more rain2615201715
50 mm (1.97 in): Days with 50 mm or more rain19620154
100 mm (3.94 in): Days with 100 mm or more rain6119861
10 cm (3.9 in): Days with 10 cm or more snowfall3119921

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1986.

Download the Data

  • Data for Amber 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).