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Built 2026-10-19 (19 October 2026)

Roaring River Threshold Days by Year (USS0022F43S)

12 fixed thresholds counted per year at Roaring River (USS0022F43S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Roaring River Thresholds

  • Roaring River: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1996 with 95.
  • Roaring River: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1996 with 37.
  • Roaring River: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 1996 with 9.
  • Roaring River: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 1990 with 48.
  • 12 fixed thresholds have at least one qualifying day at Roaring River.
30 years with a qualifying day
Days at or above 30 C (86 F) per year at Roaring River Days per year at Roaring River with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 16 in 2017. 051015201990: 41991: 31992: 91994: 31996: 101998: 112002: 62003: 102004: 42005: 22006: 92007: 32008: 62009: 92010: 62012: 42013: 12014: 32015: 102016: 32017: 162018: 72019: 22020: 82021: 132022: 152023: 62024: 132025: 102026: 31990199420022005200820122015201820212024
Days per year at Roaring River with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 16 in 2017.
Days at or above 30 C (86 F) per year at Roaring River
YearDaysDecade average
199046.7
199136.7
199296.7
199436.7
1996106.7
1998116.7
200266.1
2003106.1
200446.1
200526.1
200696.1
200736.1
200866.1
200996.1
201065.8
201245.8
201315.8
201435.8
2015105.8
201635.8
2017165.8
201875.8
201925.8
202089.7
2021139.7
2022159.7
202369.7
2024139.7
2025109.7
202639.7
First to last qualifying date each year at Roaring River For each year, a bar from the first to the last day at Roaring River meeting 30 C (86 F). 1990: 10 July 1990 to 11 August 19901991: 2 July 1991 to 25 September 19911992: 21 June 1992 to 17 August 19921994: 19 July 1994 to 21 July 19941996: 13 July 1996 to 24 August 19961998: 26 July 1998 to 6 September 19982002: 9 July 2002 to 13 August 20022003: 28 June 2003 to 3 September 20032004: 23 July 2004 to 12 August 20042005: 21 July 2005 to 27 July 20052006: 24 June 2006 to 2 September 20062007: 10 July 2007 to 29 August 20072008: 28 June 2008 to 15 September 20082009: 20 July 2009 to 11 September 20092010: 24 July 2010 to 25 August 20102012: 4 August 2012 to 17 August 20122013: 2 July 2013 to 2 July 20132014: 1 July 2014 to 10 August 20142015: 8 June 2015 to 11 September 20152016: 28 July 2016 to 19 August 20162017: 24 June 2017 to 11 September 20172018: 12 July 2018 to 14 August 20182019: 27 August 2019 to 28 August 20192020: 26 July 2020 to 6 September 20202021: 26 June 2021 to 7 September 20212022: 26 June 2022 to 6 September 20222023: 15 July 2023 to 16 August 20232024: 5 July 2024 to 7 September 20242025: 1 July 2025 to 3 September 20252026: 5 August 2026 to 7 August 202619901996200420082013201720212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Roaring River meeting 30 C (86 F).
First to last qualifying date each year at Roaring River
YearFirst dateLast date
19901990-07-101990-08-11
19911991-07-021991-09-25
19921992-06-211992-08-17
19941994-07-191994-07-21
19961996-07-131996-08-24
19981998-07-261998-09-06
20022002-07-092002-08-13
20032003-06-282003-09-03
20042004-07-232004-08-12
20052005-07-212005-07-27
20062006-06-242006-09-02
20072007-07-102007-08-29
20082008-06-282008-09-15
20092009-07-202009-09-11
20102010-07-242010-08-25
20122012-08-042012-08-17
20132013-07-022013-07-02
20142014-07-012014-08-10
20152015-06-082015-09-11
20162016-07-282016-08-19
20172017-06-242017-09-11
20182018-07-122018-08-14
20192019-08-272019-08-28
20202020-07-262020-09-06
20212021-06-262021-09-07
20222022-06-262022-09-06
20232023-07-152023-08-16
20242024-07-052024-09-07
20252025-07-012025-09-03
20262026-08-052026-08-07

Every Fixed Threshold

Fixed thresholds at Roaring River
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days301620173
35 C (95 F): Days2120081
90 F (32.2 C): Days18920221
0 C (32 F): Ice days (max364819908
0 C (32 F): Frost days (min33200201181
-10 C (14 F): Days with min3118199411
-20 C (-4 F): Days with min2319901
20 C (68 F): Tropical nights (min2120061
10 mm (0.39 in): Days with 10 mm or more rain4695199631
25 mm (0.98 in): Days with 25 mm or more rain463719965
50 mm (1.97 in): Days with 50 mm or more rain41919963
100 mm (3.94 in): Days with 100 mm or more rain4119861

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 Roaring River 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).