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Built 2026-10-19 (19 October 2026)

Nullo Mountain AWS Threshold Days by Year (ASN00062100)

10 fixed thresholds counted per year at Nullo Mountain AWS (ASN00062100): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nullo Mountain AWS Thresholds

  • Nullo Mountain AWS: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 1992 with 30.
  • Nullo Mountain AWS: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 2004 with 25.
  • Nullo Mountain AWS: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 2010 with 52.
  • Nullo Mountain AWS: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 2010 with 17.
  • 10 fixed thresholds have at least one qualifying day at Nullo Mountain AWS.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Nullo Mountain AWS Days per year at Nullo Mountain AWS with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 2004. 01020301992: 11993: 41994: 61997: 91998: 71999: 72000: 22001: 132002: 52003: 122004: 252005: 102006: 92007: 22009: 152010: 62011: 52012: 32013: 122014: 212015: 42016: 72017: 242018: 202019: 242020: 162021: 32023: 112024: 32025: 102026: 1019921998200220062011201520192024
Days per year at Nullo Mountain AWS with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 2004.
Days at or above 30 C (86 F) per year at Nullo Mountain AWS
YearDaysDecade average
199215.7
199345.7
199465.7
199795.7
199875.7
199975.7
2000210.3
20011310.3
2002510.3
20031210.3
20042510.3
20051010.3
2006910.3
2007210.3
20091510.3
2010612.6
2011512.6
2012312.6
20131212.6
20142112.6
2015412.6
2016712.6
20172412.6
20182012.6
20192412.6
2020168.8
202138.8
2023118.8
202438.8
2025108.8
2026108.8
First to last qualifying date each year at Nullo Mountain AWS For each year, a bar from the first to the last day at Nullo Mountain AWS meeting 30 C (86 F). 1992: 20 January 1992 to 20 January 19921993: 24 January 1993 to 4 February 19931994: 12 January 1994 to 22 December 19941997: 23 February 1997 to 29 November 19971998: 3 January 1998 to 23 March 19981999: 6 January 1999 to 15 February 19992000: 19 January 2000 to 20 January 20002001: 5 January 2001 to 20 December 20012002: 19 March 2002 to 16 December 20022003: 17 January 2003 to 31 December 20032004: 1 January 2004 to 1 December 20042005: 13 January 2005 to 31 December 20052006: 1 January 2006 to 29 November 20062007: 11 January 2007 to 12 January 20072009: 14 January 2009 to 17 December 20092010: 12 January 2010 to 26 January 20102011: 26 January 2011 to 4 February 20112012: 30 November 2012 to 19 December 20122013: 5 January 2013 to 22 December 20132014: 3 January 2014 to 23 November 20142015: 20 March 2015 to 19 December 20152016: 14 January 2016 to 31 December 20162017: 9 January 2017 to 24 December 20172018: 6 January 2018 to 31 December 20182019: 2 January 2019 to 31 December 20192020: 1 January 2020 to 1 December 20202021: 24 January 2021 to 26 January 20212023: 26 January 2023 to 18 December 20232024: 2 February 2024 to 29 February 20242025: 15 January 2025 to 21 December 20252026: 8 January 2026 to 6 February 202619921998200220062011201520192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Nullo Mountain AWS meeting 30 C (86 F).
First to last qualifying date each year at Nullo Mountain AWS
YearFirst dateLast date
19921992-01-201992-01-20
19931993-01-241993-02-04
19941994-01-121994-12-22
19971997-02-231997-11-29
19981998-01-031998-03-23
19991999-01-061999-02-15
20002000-01-192000-01-20
20012001-01-052001-12-20
20022002-03-192002-12-16
20032003-01-172003-12-31
20042004-01-012004-12-01
20052005-01-132005-12-31
20062006-01-012006-11-29
20072007-01-112007-01-12
20092009-01-142009-12-17
20102010-01-122010-01-26
20112011-01-262011-02-04
20122012-11-302012-12-19
20132013-01-052013-12-22
20142014-01-032014-11-23
20152015-03-202015-12-19
20162016-01-142016-12-31
20172017-01-092017-12-24
20182018-01-062018-12-31
20192019-01-022019-12-31
20202020-01-012020-12-01
20212021-01-242021-01-26
20232023-01-262023-12-18
20242024-02-022024-02-29
20252025-01-152025-12-21
20262026-01-082026-02-06

Every Fixed Threshold

Fixed thresholds at Nullo Mountain AWS
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3125200410
35 C (95 F): Days7420204
90 F (32.2 C): Days211220194
0 C (32 F): Frost days (min343019925
20 C (68 F): Tropical nights (min281420193
25 C (77 F): Days with min1120171
10 mm (0.39 in): Days with 10 mm or more rain3152201012
25 mm (0.98 in): Days with 25 mm or more rain311720104
50 mm (1.97 in): Days with 50 mm or more rain28420051
100 mm (3.94 in): Days with 100 mm or more rain2120051

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 Nullo Mountain AWS 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).