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Built 2026-10-19 (19 October 2026)

Gray Threshold Days by Year (USC00173295)

16 fixed thresholds counted per year at Gray (USC00173295): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Gray Thresholds

  • Gray: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 2002 with 25.
  • Gray: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 2003 with 67.
  • Gray: nights with a minimum temperature at or below 0 C (32 F) in 31 years, most in 2002 with 157.
  • Gray: nights with a minimum temperature at or below -10 C (14 F) in 31 years, most in 2003 with 60.
  • 16 fixed thresholds have at least one qualifying day at Gray.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Gray Days per year at Gray with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 2002. 01020301996: 61997: 201998: 111999: 202000: 32001: 222002: 252003: 102004: 52005: 222006: 82007: 142008: 62009: 92010: 202011: 122012: 92013: 182014: 72015: 102016: 192017: 122018: 172019: 102020: 182021: 202022: 202023: 102024: 142025: 182026: 1019962000200420082012201620202024
Days per year at Gray with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 2002.
Days at or above 30 C (86 F) per year at Gray
YearDaysDecade average
1996614.3
19972014.3
19981114.3
19992014.3
2000312.4
20012212.4
20022512.4
20031012.4
2004512.4
20052212.4
2006812.4
20071412.4
2008612.4
2009912.4
20102013.4
20111213.4
2012913.4
20131813.4
2014713.4
20151013.4
20161913.4
20171213.4
20181713.4
20191013.4
20201815.7
20212015.7
20222015.7
20231015.7
20241415.7
20251815.7
20261015.7
First to last qualifying date each year at Gray For each year, a bar from the first to the last day at Gray meeting 30 C (86 F). 1996: 11 June 1996 to 5 September 19961997: 10 June 1997 to 16 August 19971998: 31 March 1998 to 6 September 19981999: 31 May 1999 to 4 September 19992000: 17 June 2000 to 1 September 20002001: 2 May 2001 to 9 September 20012002: 17 April 2002 to 10 September 20022003: 25 June 2003 to 22 August 20032004: 15 May 2004 to 28 August 20042005: 7 June 2005 to 21 August 20052006: 29 May 2006 to 2 August 20062007: 25 May 2007 to 26 September 20072008: 27 May 2008 to 4 September 20082009: 28 April 2009 to 23 August 20092010: 25 May 2010 to 2 September 20102011: 9 June 2011 to 30 July 20112012: 20 June 2012 to 3 August 20122013: 30 May 2013 to 11 September 20132014: 9 June 2014 to 27 August 20142015: 10 May 2015 to 8 September 20152016: 28 May 2016 to 9 September 20162017: 18 May 2017 to 27 September 20172018: 2 May 2018 to 6 September 20182019: 2 July 2019 to 31 July 20192020: 22 May 2020 to 25 August 20202021: 26 May 2021 to 26 August 20212022: 14 May 2022 to 20 August 20222023: 28 May 2023 to 7 September 20232024: 22 May 2024 to 2 August 20242025: 5 June 2025 to 17 August 20252026: 19 May 2026 to 9 August 202619962000200420082012201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Gray meeting 30 C (86 F).
First to last qualifying date each year at Gray
YearFirst dateLast date
19961996-06-111996-09-05
19971997-06-101997-08-16
19981998-03-311998-09-06
19991999-05-311999-09-04
20002000-06-172000-09-01
20012001-05-022001-09-09
20022002-04-172002-09-10
20032003-06-252003-08-22
20042004-05-152004-08-28
20052005-06-072005-08-21
20062006-05-292006-08-02
20072007-05-252007-09-26
20082008-05-272008-09-04
20092009-04-282009-08-23
20102010-05-252010-09-02
20112011-06-092011-07-30
20122012-06-202012-08-03
20132013-05-302013-09-11
20142014-06-092014-08-27
20152015-05-102015-09-08
20162016-05-282016-09-09
20172017-05-182017-09-27
20182018-05-022018-09-06
20192019-07-022019-07-31
20202020-05-222020-08-25
20212021-05-262021-08-26
20222022-05-142022-08-20
20232023-05-282023-09-07
20242024-05-222024-08-02
20252025-06-052025-08-17
20262026-05-192026-08-09

Every Fixed Threshold

Fixed thresholds at Gray
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3125200210
35 C (95 F): Days9420021
90 F (32.2 C): Days281920024
0 C (32 F): Ice days (max3167200335
0 C (32 F): Frost days (min31157200293
-10 C (14 F): Days with min3160200331
-20 C (-4 F): Days with min221220041
20 C (68 F): Tropical nights (min281320106
25 C (77 F): Days with min1120111
10 mm (0.39 in): Days with 10 mm or more rain3152200620
25 mm (0.98 in): Days with 25 mm or more rain312220056
50 mm (1.97 in): Days with 50 mm or more rain27720051
100 mm (3.94 in): Days with 100 mm or more rain8219961
10 cm (3.9 in): Days with 10 cm or more snowfall301220074
25 cm (9.8 in): Days with 25 cm or more snowfall19420011
50 cm (19.7 in): Days with 50 cm or more snowfall1120151

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1996.

Download the Data

  • Data for Gray 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 (2026-10-17).