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

Florence Threshold Days by Year (USC00472826)

15 fixed thresholds counted per year at Florence (USC00472826): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Florence Thresholds

  • Florence: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 2020 with 211.
  • Florence: nights with a minimum temperature at or below -10 C (14 F) in 28 years, most in 2014 with 110.
  • Florence: nights with a minimum temperature at or below -20 C (-4 F) in 28 years, most in 2014 with 55.
  • Florence: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 2019 with 36.
  • 15 fixed thresholds have at least one qualifying day at Florence.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Florence Days per year at Florence with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 2007. 051015201998: 91999: 142000: 12001: 152002: 162003: 82004: 12005: 172006: 102007: 202008: 32010: 132011: 142012: 152013: 102014: 12015: 62016: 142017: 42018: 122019: 52020: 92021: 132022: 72023: 82024: 92025: 12199820012004200720112014201720202023
Days per year at Florence with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 2007.
Days at or above 30 C (86 F) per year at Florence
YearDaysDecade average
1998911.5
19991411.5
2000110.1
20011510.1
20021610.1
2003810.1
2004110.1
20051710.1
20061010.1
20072010.1
2008310.1
2010139.4
2011149.4
2012159.4
2013109.4
201419.4
201569.4
2016149.4
201749.4
2018129.4
201959.4
202099.7
2021139.7
202279.7
202389.7
202499.7
2025129.7
First to last qualifying date each year at Florence For each year, a bar from the first to the last day at Florence meeting 30 C (86 F). 1998: 19 May 1998 to 12 September 19981999: 30 May 1999 to 4 September 19992000: 1 September 2000 to 1 September 20002001: 26 June 2001 to 9 August 20012002: 29 June 2002 to 10 September 20022003: 24 June 2003 to 26 August 20032004: 9 June 2004 to 9 June 20042005: 21 June 2005 to 12 September 20052006: 30 May 2006 to 1 August 20062007: 15 May 2007 to 6 September 20072008: 1 September 2008 to 3 September 20082010: 24 May 2010 to 31 August 20102011: 8 June 2011 to 31 July 20112012: 21 May 2012 to 31 August 20122013: 26 June 2013 to 27 August 20132014: 27 May 2014 to 27 May 20142015: 18 July 2015 to 17 August 20152016: 7 May 2016 to 11 August 20162017: 10 June 2017 to 25 September 20172018: 26 May 2018 to 15 August 20182019: 1 June 2019 to 4 August 20192020: 3 June 2020 to 26 July 20202021: 5 June 2021 to 26 August 20212022: 13 May 2022 to 3 September 20222023: 2 June 2023 to 7 September 20232024: 19 June 2024 to 17 September 20242025: 13 May 2025 to 16 August 20251998200220062011201520192023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Florence meeting 30 C (86 F).
First to last qualifying date each year at Florence
YearFirst dateLast date
19981998-05-191998-09-12
19991999-05-301999-09-04
20002000-09-012000-09-01
20012001-06-262001-08-09
20022002-06-292002-09-10
20032003-06-242003-08-26
20042004-06-092004-06-09
20052005-06-212005-09-12
20062006-05-302006-08-01
20072007-05-152007-09-06
20082008-09-012008-09-03
20102010-05-242010-08-31
20112011-06-082011-07-31
20122012-05-212012-08-31
20132013-06-262013-08-27
20142014-05-272014-05-27
20152015-07-182015-08-17
20162016-05-072016-08-11
20172017-06-102017-09-25
20182018-05-262018-08-15
20192019-06-012019-08-04
20202020-06-032020-07-26
20212021-06-052021-08-26
20222022-05-132022-09-03
20232023-06-022023-09-07
20242024-06-192024-09-17
20252025-05-132025-08-16

Every Fixed Threshold

Fixed thresholds at Florence
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2720200712
35 C (95 F): Days4220062
90 F (32.2 C): Days19820052
0 C (32 F): Ice days (max27120201490
0 C (32 F): Frost days (min282112020195
-10 C (14 F): Days with min28110201492
-20 C (-4 F): Days with min2855201421
-30 C (-22 F): Days with min19820142
20 C (68 F): Tropical nights (min16620012
10 mm (0.39 in): Days with 10 mm or more rain2836201926
25 mm (0.98 in): Days with 25 mm or more rain281120107
50 mm (1.97 in): Days with 50 mm or more rain11320101
100 mm (3.94 in): Days with 100 mm or more rain2119991
10 cm (3.9 in): Days with 10 cm or more snowfall281320145
25 cm (9.8 in): Days with 25 cm or more snowfall10220191

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1998.

Download the Data

  • Data for Florence 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).