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

Las Vegas WFO Threshold Days by Year (USC00264439)

13 fixed thresholds counted per year at Las Vegas WFO (USC00264439): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Las Vegas WFO Thresholds

  • Las Vegas WFO: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2020 with 180.
  • Las Vegas WFO: days with a maximum temperature at or above 35 C (95 F) in 29 years, most in 2020 with 135.
  • Las Vegas WFO: days with a maximum temperature at or above 40 C (104 F) in 29 years, most in 2020 with 83.
  • Las Vegas WFO: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 2020 with 160.
  • 13 fixed thresholds have at least one qualifying day at Las Vegas WFO.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Las Vegas WFO Days per year at Las Vegas WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 180 in 2020. 0501001502001997: 1631998: 1241999: 1482000: 1602001: 1732002: 1552003: 1612004: 1602005: 1382006: 1462007: 1632008: 1552009: 1572010: 1402011: 1522012: 1712013: 1582014: 1722015: 1622016: 1582017: 1622018: 1692019: 1482020: 1802021: 1672022: 1782023: 1592024: 1632025: 1541997200020032006200920122015201820212024
Days per year at Las Vegas WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 180 in 2020.
Days at or above 30 C (86 F) per year at Las Vegas WFO
YearDaysDecade average
1997163145
1998124145
1999148145
2000160156.8
2001173156.8
2002155156.8
2003161156.8
2004160156.8
2005138156.8
2006146156.8
2007163156.8
2008155156.8
2009157156.8
2010140159.2
2011152159.2
2012171159.2
2013158159.2
2014172159.2
2015162159.2
2016158159.2
2017162159.2
2018169159.2
2019148159.2
2020180166.8
2021167166.8
2022178166.8
2023159166.8
2024163166.8
2025154166.8
First to last qualifying date each year at Las Vegas WFO For each year, a bar from the first to the last day at Las Vegas WFO meeting 30 C (86 F). 1997: 20 March 1997 to 19 October 19971998: 23 March 1998 to 13 October 19981999: 18 April 1999 to 15 October 19992000: 4 April 2000 to 20 October 20002001: 16 April 2001 to 28 October 20012002: 1 April 2002 to 10 October 20022003: 12 May 2003 to 28 October 20032004: 18 March 2004 to 15 October 20042005: 17 April 2005 to 14 October 20052006: 13 April 2006 to 4 October 20062007: 13 March 2007 to 28 October 20072008: 14 April 2008 to 30 October 20082009: 20 April 2009 to 18 October 20092010: 18 April 2010 to 16 October 20102011: 31 March 2011 to 25 October 20112012: 31 March 2012 to 20 October 20122013: 14 March 2013 to 27 October 20132014: 17 March 2014 to 31 October 20142015: 27 March 2015 to 2 November 20152016: 20 March 2016 to 22 October 20162017: 12 March 2017 to 26 October 20172018: 31 March 2018 to 29 October 20182019: 7 April 2019 to 17 October 20192020: 22 April 2020 to 6 November 20202021: 29 March 2021 to 6 November 20212022: 25 March 2022 to 21 October 20222023: 10 April 2023 to 22 October 20232024: 12 April 2024 to 16 October 20242025: 25 March 2025 to 8 October 202519972001200520092013201720212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Las Vegas WFO meeting 30 C (86 F).
First to last qualifying date each year at Las Vegas WFO
YearFirst dateLast date
19971997-03-201997-10-19
19981998-03-231998-10-13
19991999-04-181999-10-15
20002000-04-042000-10-20
20012001-04-162001-10-28
20022002-04-012002-10-10
20032003-05-122003-10-28
20042004-03-182004-10-15
20052005-04-172005-10-14
20062006-04-132006-10-04
20072007-03-132007-10-28
20082008-04-142008-10-30
20092009-04-202009-10-18
20102010-04-182010-10-16
20112011-03-312011-10-25
20122012-03-312012-10-20
20132013-03-142013-10-27
20142014-03-172014-10-31
20152015-03-272015-11-02
20162016-03-202016-10-22
20172017-03-122017-10-26
20182018-03-312018-10-29
20192019-04-072019-10-17
20202020-04-222020-11-06
20212021-03-292021-11-06
20222022-03-252022-10-21
20232023-04-102023-10-22
20242024-04-122024-10-16
20252025-03-252025-10-08

Every Fixed Threshold

Fixed thresholds at Las Vegas WFO
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days291802020154
35 C (95 F): Days291352020102
40 C (104 F): Days2983202047
45 C (113 F): Days211520171
90 F (32.2 C): Days291602020137
100 F (37.8 C): Days29112202070
110 F (43.3 C): Days293820204
0 C (32 F): Frost days (min293520028
20 C (68 F): Tropical nights (min291342015124
25 C (77 F): Days with min2990202266
10 mm (0.39 in): Days with 10 mm or more rain26820045
25 mm (0.98 in): Days with 25 mm or more rain9219981
50 mm (1.97 in): Days with 50 mm or more rain2119991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Las Vegas WFO 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).