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Built 2026-10-19 (19 October 2026)

Fontenelle Dam Threshold Days by Year (USC00483396)

14 fixed thresholds counted per year at Fontenelle Dam (USC00483396): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fontenelle Dam Thresholds

  • Fontenelle Dam: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 2016 with 9.
  • Fontenelle Dam: days with a maximum temperature at or below 0 C (32 F) in 53 years, most in 1998 with 124.
  • Fontenelle Dam: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 2021 with 46.
  • Fontenelle Dam: days with a maximum temperature at or above 90 F (32.2 C) in 45 years, most in 1988 with 19.
  • 14 fixed thresholds have at least one qualifying day at Fontenelle Dam.
50 years with a qualifying day
Days at or above 30 C (86 F) per year at Fontenelle Dam Days per year at Fontenelle Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 2021. 02040601965: 121966: 351967: 241971: 331973: 231976: 211977: 241978: 221979: 281980: 171981: 331982: 231983: 161984: 161985: 211986: 151987: 131988: 411989: 251990: 351991: 101992: 161994: 231995: 61996: 91998: 32000: 102001: 32002: 72003: 92004: 52005: 202006: 242007: 422008: 252012: 362013: 352014: 152015: 202016: 232017: 292018: 352019: 292020: 442021: 462022: 412023: 172024: 292025: 322026: 391965197619811986199119982004201220172022
Days per year at Fontenelle Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 2021.
Days at or above 30 C (86 F) per year at Fontenelle Dam
YearDaysDecade average
19651223.7
19663523.7
19672423.7
19713325.2
19732325.2
19762125.2
19772425.2
19782225.2
19792825.2
19801722
19813322
19822322
19831622
19841622
19852122
19861522
19871322
19884122
19892522
19903514.6
19911014.6
19921614.6
19942314.6
1995614.6
1996914.6
1998314.6
20001016.1
2001316.1
2002716.1
2003916.1
2004516.1
20052016.1
20062416.1
20074216.1
20082516.1
20123627.8
20133527.8
20141527.8
20152027.8
20162327.8
20172927.8
20183527.8
20192927.8
20204435.4
20214635.4
20224135.4
20231735.4
20242935.4
20253235.4
20263935.4
First to last qualifying date each year at Fontenelle Dam For each year, a bar from the first to the last day at Fontenelle Dam meeting 30 C (86 F). 1965: 14 July 1965 to 12 August 19651966: 19 June 1966 to 17 August 19661967: 13 July 1967 to 26 August 19671971: 21 June 1971 to 28 August 19711973: 9 June 1973 to 21 August 19731976: 29 June 1976 to 6 September 19761977: 2 June 1977 to 8 September 19771978: 11 July 1978 to 7 September 19781979: 13 June 1979 to 9 September 19791980: 26 June 1980 to 14 August 19801981: 26 June 1981 to 30 August 19811982: 28 June 1982 to 4 September 19821983: 6 July 1983 to 2 September 19831984: 29 June 1984 to 14 August 19841985: 8 June 1985 to 28 August 19851986: 27 June 1986 to 19 August 19861987: 15 June 1987 to 3 September 19871988: 5 June 1988 to 31 August 19881989: 16 June 1989 to 8 August 19891990: 10 June 1990 to 13 September 19901991: 6 July 1991 to 11 August 19911992: 22 June 1992 to 15 August 19921994: 20 June 1994 to 26 August 19941995: 8 July 1995 to 20 August 19951996: 2 July 1996 to 30 August 19961998: 18 July 1998 to 20 July 19982000: 13 July 2000 to 13 August 20002001: 1 July 2001 to 4 July 20012002: 13 July 2002 to 31 July 20022003: 11 July 2003 to 14 August 20032004: 13 July 2004 to 16 August 20042005: 21 June 2005 to 29 August 20052006: 6 June 2006 to 23 August 20062007: 20 June 2007 to 30 August 20072008: 30 June 2008 to 30 August 20082012: 4 June 2012 to 29 August 20122013: 10 June 2013 to 1 September 20132014: 5 July 2014 to 11 August 20142015: 18 June 2015 to 29 August 20152016: 20 June 2016 to 17 August 20162017: 20 June 2017 to 4 September 20172018: 13 June 2018 to 18 August 20182019: 2 July 2019 to 4 September 20192020: 29 May 2020 to 6 September 20202021: 3 June 2021 to 9 September 20212022: 18 June 2022 to 7 September 20222023: 16 July 2023 to 22 August 20232024: 13 June 2024 to 21 August 20242025: 1 June 2025 to 22 August 20252026: 6 June 2026 to 27 August 202619651978198519922002201220192026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Fontenelle Dam meeting 30 C (86 F).
First to last qualifying date each year at Fontenelle Dam
YearFirst dateLast date
19651965-07-141965-08-12
19661966-06-191966-08-17
19671967-07-131967-08-26
19711971-06-211971-08-28
19731973-06-091973-08-21
19761976-06-291976-09-06
19771977-06-021977-09-08
19781978-07-111978-09-07
19791979-06-131979-09-09
19801980-06-261980-08-14
19811981-06-261981-08-30
19821982-06-281982-09-04
19831983-07-061983-09-02
19841984-06-291984-08-14
19851985-06-081985-08-28
19861986-06-271986-08-19
19871987-06-151987-09-03
19881988-06-051988-08-31
19891989-06-161989-08-08
19901990-06-101990-09-13
19911991-07-061991-08-11
19921992-06-221992-08-15
19941994-06-201994-08-26
19951995-07-081995-08-20
19961996-07-021996-08-30
19981998-07-181998-07-20
20002000-07-132000-08-13
20012001-07-012001-07-04
20022002-07-132002-07-31
20032003-07-112003-08-14
20042004-07-132004-08-16
20052005-06-212005-08-29
20062006-06-062006-08-23
20072007-06-202007-08-30
20082008-06-302008-08-30
20122012-06-042012-08-29
20132013-06-102013-09-01
20142014-07-052014-08-11
20152015-06-182015-08-29
20162016-06-202016-08-17
20172017-06-202017-09-04
20182018-06-132018-08-18
20192019-07-022019-09-04
20202020-05-292020-09-06
20212021-06-032021-09-09
20222022-06-182022-09-07
20232023-07-162023-08-22
20242024-06-132024-08-21
20252025-06-012025-08-22
20262026-06-062026-08-27

Every Fixed Threshold

Fixed thresholds at Fontenelle Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5046202139
35 C (95 F): Days6219796
90 F (32.2 C): Days4519198822
100 F (37.8 C): Days1120071
0 C (32 F): Ice days (max5312419987
0 C (32 F): Frost days (min422821999139
-10 C (14 F): Days with min42169199934
-20 C (-4 F): Days with min427019851
-30 C (-22 F): Days with min341719792
-40 C (-40 F): Days with min10319791
10 mm (0.39 in): Days with 10 mm or more rain55920164
25 mm (0.98 in): Days with 25 mm or more rain14219821
10 cm (3.9 in): Days with 10 cm or more snowfall30519661
25 cm (9.8 in): Days with 25 cm or more snowfall2120031

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

  • Data for Fontenelle 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).