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Built 2026-10-19 (19 October 2026)

Harts Pass Threshold Days by Year (USS0020A05S)

10 fixed thresholds counted per year at Harts Pass (USS0020A05S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Harts Pass Thresholds

  • Harts Pass: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1990 with 66.
  • Harts Pass: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 2006 with 22.
  • Harts Pass: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1990 with 5.
  • Harts Pass: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 2006 with 142.
  • 10 fixed thresholds have at least one qualifying day at Harts Pass.
30 years with a qualifying day
Nights at or below 0 C (32 F) per year at Harts Pass Days per year at Harts Pass with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 256 in 1997. 01002003001990: 2311991: 2401992: 2341994: 2351995: 2451996: 2531997: 2561998: 2102000: 2252001: 2402002: 2382005: 2192006: 2412007: 2502008: 2512009: 2362010: 2362012: 2312013: 2382014: 2292015: 1932017: 2232018: 2252019: 2452020: 2372021: 2292022: 2192024: 2372025: 2322026: 1411990199419972001200620092013201720202024
Days per year at Harts Pass with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 256 in 1997.
Nights at or below 0 C (32 F) per year at Harts Pass
YearDaysDecade average
1990231238
1991240238
1992234238
1994235238
1995245238
1996253238
1997256238
1998210238
2000225237.5
2001240237.5
2002238237.5
2005219237.5
2006241237.5
2007250237.5
2008251237.5
2009236237.5
2010236227.5
2012231227.5
2013238227.5
2014229227.5
2015193227.5
2017223227.5
2018225227.5
2019245227.5
2020237215.8
2021229215.8
2022219215.8
2024237215.8
2025232215.8
2026141215.8
First to last qualifying date each year at Harts Pass For each year, a bar from the first to the last day at Harts Pass meeting 0 C (32 F). 1990: 1 January 1990 to 31 December 19901991: 1 January 1991 to 31 December 19911992: 1 January 1992 to 31 December 19921994: 1 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951996: 1 January 1996 to 31 December 19961997: 1 January 1997 to 31 December 19971998: 1 January 1998 to 23 December 19982000: 1 January 2000 to 31 December 20002001: 1 January 2001 to 31 December 20012002: 1 January 2002 to 31 December 20022005: 1 January 2005 to 31 December 20052006: 1 January 2006 to 31 December 20062007: 1 January 2007 to 31 December 20072008: 1 January 2008 to 31 December 20082009: 1 January 2009 to 31 December 20092010: 1 January 2010 to 31 December 20102012: 1 January 2012 to 31 December 20122013: 1 January 2013 to 31 December 20132014: 1 January 2014 to 31 December 20142015: 1 January 2015 to 31 December 20152017: 10 January 2017 to 31 December 20172018: 1 January 2018 to 31 December 20182019: 1 January 2019 to 31 December 20192020: 1 January 2020 to 31 December 20202021: 1 January 2021 to 31 December 20212022: 1 January 2022 to 30 December 20222024: 1 January 2024 to 31 December 20242025: 1 January 2025 to 30 December 20252026: 1 January 2026 to 13 October 202619901995200020062010201520202025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Harts Pass meeting 0 C (32 F).
First to last qualifying date each year at Harts Pass
YearFirst dateLast date
19901990-01-011990-12-31
19911991-01-011991-12-31
19921992-01-011992-12-31
19941994-01-011994-12-31
19951995-01-011995-12-31
19961996-01-011996-12-31
19971997-01-011997-12-31
19981998-01-011998-12-23
20002000-01-012000-12-31
20012001-01-012001-12-31
20022002-01-012002-12-31
20052005-01-012005-12-31
20062006-01-012006-12-31
20072007-01-012007-12-31
20082008-01-012008-12-31
20092009-01-012009-12-31
20102010-01-012010-12-31
20122012-01-012012-12-31
20132013-01-012013-12-31
20142014-01-012014-12-31
20152015-01-012015-12-31
20172017-01-102017-12-31
20182018-01-012018-12-31
20192019-01-012019-12-31
20202020-01-012020-12-31
20212021-01-012021-12-31
20222022-01-012022-12-30
20242024-01-012024-12-31
20252025-01-012025-12-30
20262026-01-012026-10-13

Every Fixed Threshold

Fixed thresholds at Harts Pass
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max31142200655
0 C (32 F): Frost days (min302561997141
-10 C (14 F): Days with min3084199625
-20 C (-4 F): Days with min23919903
-30 C (-22 F): Days with min2319902
20 C (68 F): Tropical nights (min1120211
10 mm (0.39 in): Days with 10 mm or more rain4366199014
25 mm (0.98 in): Days with 25 mm or more rain432220062
50 mm (1.97 in): Days with 50 mm or more rain33519902
100 mm (3.94 in): Days with 100 mm or more rain3119901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1990.

Download the Data

  • Data for Harts Pass 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).