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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Green Valley Threshold Days by Year (USC00023668)

13 fixed thresholds counted per year at Green Valley (USC00023668): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Green Valley Thresholds

  • Green Valley: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1993 with 18.
  • Green Valley: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 2000 with 7.
  • Green Valley: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 2017 with 194.
  • Green Valley: days with a maximum temperature at or above 35 C (95 F) in 24 years, most in 2024 with 138.
  • 13 fixed thresholds have at least one qualifying day at Green Valley.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Green Valley Days per year at Green Valley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 194 in 2017. 0501001502001999: 1932000: 1762001: 1872002: 1842003: 1702004: 1762005: 1722007: 1922008: 1772011: 1832012: 1912013: 1642014: 1722015: 1472017: 1942018: 1682019: 1622020: 1942021: 1682022: 1812023: 1892024: 1752025: 1912026: 18019992002200520112014201820212024
Days per year at Green Valley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 194 in 2017.
Days at or above 30 C (86 F) per year at Green Valley
YearDaysDecade average
1999193193
2000176179.3
2001187179.3
2002184179.3
2003170179.3
2004176179.3
2005172179.3
2007192179.3
2008177179.3
2011183172.6
2012191172.6
2013164172.6
2014172172.6
2015147172.6
2017194172.6
2018168172.6
2019162172.6
2020194182.6
2021168182.6
2022181182.6
2023189182.6
2024175182.6
2025191182.6
2026180182.6
First to last qualifying date each year at Green Valley For each year, a bar from the first to the last day at Green Valley meeting 30 C (86 F). 1999: 25 January 1999 to 30 November 19992000: 16 January 2000 to 19 October 20002001: 21 March 2001 to 13 November 20012002: 24 February 2002 to 23 November 20022003: 14 March 2003 to 29 October 20032004: 9 March 2004 to 17 October 20042005: 12 March 2005 to 11 November 20052007: 8 March 2007 to 20 November 20072008: 25 March 2008 to 19 November 20082011: 11 March 2011 to 2 November 20112012: 17 March 2012 to 8 November 20122013: 14 March 2013 to 12 November 20132014: 16 February 2014 to 12 November 20142015: 28 March 2015 to 19 October 20152017: 10 February 2017 to 28 November 20172018: 23 March 2018 to 30 October 20182019: 27 March 2019 to 6 November 20192020: 24 April 2020 to 23 November 20202021: 8 March 2021 to 16 November 20212022: 26 March 2022 to 23 October 20222023: 10 April 2023 to 8 November 20232024: 26 February 2024 to 23 November 20242025: 4 February 2025 to 23 December 20252026: 26 February 2026 to 12 October 202619992002200520112014201820212024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Green Valley meeting 30 C (86 F).
First to last qualifying date each year at Green Valley
YearFirst dateLast date
19991999-01-251999-11-30
20002000-01-162000-10-19
20012001-03-212001-11-13
20022002-02-242002-11-23
20032003-03-142003-10-29
20042004-03-092004-10-17
20052005-03-122005-11-11
20072007-03-082007-11-20
20082008-03-252008-11-19
20112011-03-112011-11-02
20122012-03-172012-11-08
20132013-03-142013-11-12
20142014-02-162014-11-12
20152015-03-282015-10-19
20172017-02-102017-11-28
20182018-03-232018-10-30
20192019-03-272019-11-06
20202020-04-242020-11-23
20212021-03-082021-11-16
20222022-03-262022-10-23
20232023-04-102023-11-08
20242024-02-262024-11-23
20252025-02-042025-12-23
20262026-02-262026-10-12

Every Fixed Threshold

Fixed thresholds at Green Valley
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days241942017180
35 C (95 F): Days241382024110
40 C (104 F): Days2451202023
90 F (32.2 C): Days241792020152
100 F (37.8 C): Days2491202067
110 F (43.3 C): Days8420174
0 C (32 F): Frost days (min2239201317
20 C (68 F): Tropical nights (min23105201499
25 C (77 F): Days with min2336202023
10 mm (0.39 in): Days with 10 mm or more rain361819939
25 mm (0.98 in): Days with 25 mm or more rain35720001
50 mm (1.97 in): Days with 50 mm or more rain8220182
100 mm (3.94 in): Days with 100 mm or more rain1120211

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1999.

Download the Data

  • Data for Green Valley 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).