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Built 2026-10-19 (19 October 2026)

Sanford Dam Threshold Days by Year (USC00418040)

18 fixed thresholds counted per year at Sanford Dam (USC00418040): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sanford Dam Thresholds

  • Sanford Dam: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 2020 with 149.
  • Sanford Dam: days with a maximum temperature at or above 35 C (95 F) in 33 years, most in 2000 with 92.
  • Sanford Dam: days with a maximum temperature at or above 90 F (32.2 C) in 33 years, most in 2018 with 128.
  • Sanford Dam: days with a maximum temperature at or above 100 F (37.8 C) in 33 years, most in 2011 with 57.
  • 18 fixed thresholds have at least one qualifying day at Sanford Dam.
33 years with a qualifying day
Days at or above 30 C (86 F) per year at Sanford Dam Days per year at Sanford Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 149 in 2020. 0501001501994: 1231995: 1091996: 1061997: 951998: 1381999: 1082000: 1382001: 1192002: 1152003: 1052004: 1032005: 1162006: 1182007: 1172008: 1292009: 1182010: 1282011: 1352012: 1362013: 1152014: 1102015: 1042016: 1292017: 1282018: 1462019: 1222020: 1492021: 1252022: 1412023: 1312024: 1382025: 1182026: 146199419982002200620102014201820222026
Days per year at Sanford Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 149 in 2020.
Days at or above 30 C (86 F) per year at Sanford Dam
YearDaysDecade average
1994123113.2
1995109113.2
1996106113.2
199795113.2
1998138113.2
1999108113.2
2000138117.8
2001119117.8
2002115117.8
2003105117.8
2004103117.8
2005116117.8
2006118117.8
2007117117.8
2008129117.8
2009118117.8
2010128125.3
2011135125.3
2012136125.3
2013115125.3
2014110125.3
2015104125.3
2016129125.3
2017128125.3
2018146125.3
2019122125.3
2020149135.4
2021125135.4
2022141135.4
2023131135.4
2024138135.4
2025118135.4
2026146135.4
First to last qualifying date each year at Sanford Dam For each year, a bar from the first to the last day at Sanford Dam meeting 30 C (86 F). 1994: 18 April 1994 to 4 October 19941995: 20 March 1995 to 23 October 19951996: 18 April 1996 to 17 October 19961997: 30 April 1997 to 6 October 19971998: 26 March 1998 to 16 October 19981999: 21 April 1999 to 25 October 19992000: 22 February 2000 to 28 October 20002001: 5 April 2001 to 1 November 20012002: 2 April 2002 to 12 October 20022003: 2 April 2003 to 4 November 20032004: 20 March 2004 to 20 September 20042005: 21 April 2005 to 9 November 20052006: 1 March 2006 to 9 November 20062007: 19 March 2007 to 21 November 20072008: 8 April 2008 to 5 November 20082009: 6 March 2009 to 8 November 20092010: 1 April 2010 to 17 October 20102011: 18 March 2011 to 26 October 20112012: 15 March 2012 to 1 November 20122013: 9 April 2013 to 11 October 20132014: 10 April 2014 to 27 October 20142015: 29 March 2015 to 15 October 20152016: 11 April 2016 to 17 November 20162017: 11 February 2017 to 28 November 20172018: 24 March 2018 to 30 October 20182019: 29 March 2019 to 19 October 20192020: 27 March 2020 to 20 November 20202021: 6 April 2021 to 16 November 20212022: 29 March 2022 to 22 October 20222023: 4 April 2023 to 8 November 20232024: 5 April 2024 to 30 October 20242025: 4 February 2025 to 5 November 20252026: 25 February 2026 to 14 October 20261994199920042009201420192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sanford Dam meeting 30 C (86 F).
First to last qualifying date each year at Sanford Dam
YearFirst dateLast date
19941994-04-181994-10-04
19951995-03-201995-10-23
19961996-04-181996-10-17
19971997-04-301997-10-06
19981998-03-261998-10-16
19991999-04-211999-10-25
20002000-02-222000-10-28
20012001-04-052001-11-01
20022002-04-022002-10-12
20032003-04-022003-11-04
20042004-03-202004-09-20
20052005-04-212005-11-09
20062006-03-012006-11-09
20072007-03-192007-11-21
20082008-04-082008-11-05
20092009-03-062009-11-08
20102010-04-012010-10-17
20112011-03-182011-10-26
20122012-03-152012-11-01
20132013-04-092013-10-11
20142014-04-102014-10-27
20152015-03-292015-10-15
20162016-04-112016-11-17
20172017-02-112017-11-28
20182018-03-242018-10-30
20192019-03-292019-10-19
20202020-03-272020-11-20
20212021-04-062021-11-16
20222022-03-292022-10-22
20232023-04-042023-11-08
20242024-04-052024-10-30
20252025-02-042025-11-05
20262026-02-252026-10-14

Every Fixed Threshold

Fixed thresholds at Sanford Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days331492020146
35 C (95 F): Days3392200098
40 C (104 F): Days2930201130
45 C (113 F): Days2220202
90 F (32.2 C): Days331282018127
100 F (37.8 C): Days3357201163
110 F (43.3 C): Days10520201
0 C (32 F): Ice days (max331920154
0 C (32 F): Frost days (min32144201941
-10 C (14 F): Days with min312620226
-20 C (-4 F): Days with min3220211
20 C (68 F): Tropical nights (min3279201173
25 C (77 F): Days with min1210201111
10 mm (0.39 in): Days with 10 mm or more rain332820157
25 mm (0.98 in): Days with 25 mm or more rain321020022
50 mm (1.97 in): Days with 50 mm or more rain17320041
100 mm (3.94 in): Days with 100 mm or more rain2120151
10 cm (3.9 in): Days with 10 cm or more snowfall3220101

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1994.

Download the Data

  • Data for Sanford Dam 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).