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Built 2026-10-19 (19 October 2026)

Stewart Mtn Dam Threshold Days by Year (USC00028214)

15 fixed thresholds counted per year at Stewart Mtn Dam (USC00028214): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stewart Mtn Dam Thresholds

  • Stewart Mtn Dam: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 1992 with 23.
  • Stewart Mtn Dam: days with 25 mm (0.98 in) or more of precipitation in 60 years, most in 1941 with 8.
  • Stewart Mtn Dam: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 2007 with 213.
  • Stewart Mtn Dam: days with a maximum temperature at or above 35 C (95 F) in 42 years, most in 1989 with 156.
  • 15 fixed thresholds have at least one qualifying day at Stewart Mtn Dam.
42 years with a qualifying day
Days at or above 30 C (86 F) per year at Stewart Mtn Dam Days per year at Stewart Mtn Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 213 in 2007. 01002003001962: 1901963: 1891964: 1791965: 1821966: 1961967: 1811968: 1821969: 1771970: 1661971: 1741972: 2071973: 1871974: 1821975: 1641976: 1621977: 1801979: 1651980: 1791981: 1791982: 1701983: 1631984: 1661986: 1781987: 1951988: 2021989: 2031990: 1981991: 1751992: 1901993: 1711997: 1951998: 1651999: 2022000: 1842001: 2062002: 1902003: 1872004: 2042005: 1912006: 1892007: 2132026: 76196219671972197719831989199720022007
Days per year at Stewart Mtn Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 213 in 2007.
Days at or above 30 C (86 F) per year at Stewart Mtn Dam
YearDaysDecade average
1962190184.5
1963189184.5
1964179184.5
1965182184.5
1966196184.5
1967181184.5
1968182184.5
1969177184.5
1970166176.3
1971174176.3
1972207176.3
1973187176.3
1974182176.3
1975164176.3
1976162176.3
1977180176.3
1979165176.3
1980179181.7
1981179181.7
1982170181.7
1983163181.7
1984166181.7
1986178181.7
1987195181.7
1988202181.7
1989203181.7
1990198185.1
1991175185.1
1992190185.1
1993171185.1
1997195185.1
1998165185.1
1999202185.1
2000184195.5
2001206195.5
2002190195.5
2003187195.5
2004204195.5
2005191195.5
2006189195.5
2007213195.5
20267676
First to last qualifying date each year at Stewart Mtn Dam For each year, a bar from the first to the last day at Stewart Mtn Dam meeting 30 C (86 F). 1962: 27 March 1962 to 14 November 19621963: 6 February 1963 to 11 November 19631964: 30 March 1964 to 30 October 19641965: 1 April 1965 to 8 November 19651966: 13 March 1966 to 16 November 19661967: 17 March 1967 to 19 November 19671968: 29 March 1968 to 30 October 19681969: 29 March 1969 to 27 October 19691970: 7 April 1970 to 2 November 19701971: 19 January 1971 to 16 October 19711972: 21 February 1972 to 17 October 19721973: 13 April 1973 to 13 November 19731974: 16 March 1974 to 26 October 19741975: 22 April 1975 to 12 November 19751976: 23 March 1976 to 20 October 19761977: 23 March 1977 to 6 November 19771979: 14 April 1979 to 27 October 19791980: 8 April 1980 to 10 November 19801981: 19 February 1981 to 17 November 19811982: 23 February 1982 to 26 October 19821983: 18 April 1983 to 5 November 19831984: 13 April 1984 to 1 November 19841986: 24 February 1986 to 31 October 19861987: 2 April 1987 to 29 October 19871988: 21 March 1988 to 8 November 19881989: 24 February 1989 to 13 November 19891990: 20 March 1990 to 17 November 19901991: 5 April 1991 to 8 November 19911992: 10 April 1992 to 28 October 19921993: 23 March 1993 to 27 October 19931997: 9 March 1997 to 6 November 19971998: 25 March 1998 to 16 November 19981999: 21 March 1999 to 17 November 19992000: 4 April 2000 to 20 October 20002001: 20 March 2001 to 11 November 20012002: 21 March 2002 to 22 November 20022003: 31 January 2003 to 29 October 20032004: 7 March 2004 to 16 October 20042005: 11 March 2005 to 9 November 20052006: 26 February 2006 to 22 November 20062007: 7 March 2007 to 21 November 20072026: 23 April 2026 to 13 October 20261962196819741981198819972003JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Stewart Mtn Dam meeting 30 C (86 F).
First to last qualifying date each year at Stewart Mtn Dam
YearFirst dateLast date
19621962-03-271962-11-14
19631963-02-061963-11-11
19641964-03-301964-10-30
19651965-04-011965-11-08
19661966-03-131966-11-16
19671967-03-171967-11-19
19681968-03-291968-10-30
19691969-03-291969-10-27
19701970-04-071970-11-02
19711971-01-191971-10-16
19721972-02-211972-10-17
19731973-04-131973-11-13
19741974-03-161974-10-26
19751975-04-221975-11-12
19761976-03-231976-10-20
19771977-03-231977-11-06
19791979-04-141979-10-27
19801980-04-081980-11-10
19811981-02-191981-11-17
19821982-02-231982-10-26
19831983-04-181983-11-05
19841984-04-131984-11-01
19861986-02-241986-10-31
19871987-04-021987-10-29
19881988-03-211988-11-08
19891989-02-241989-11-13
19901990-03-201990-11-17
19911991-04-051991-11-08
19921992-04-101992-10-28
19931993-03-231993-10-27
19971997-03-091997-11-06
19981998-03-251998-11-16
19991999-03-211999-11-17
20002000-04-042000-10-20
20012001-03-202001-11-11
20022002-03-212002-11-22
20032003-01-312003-10-29
20042004-03-072004-10-16
20052005-03-112005-11-09
20062006-02-262006-11-22
20072007-03-072007-11-21
20262026-04-232026-10-13

Every Fixed Threshold

Fixed thresholds at Stewart Mtn Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days42213200776
35 C (95 F): Days42156198965
40 C (104 F): Days4276200246
45 C (113 F): Days25619984
90 F (32.2 C): Days42184200471
100 F (37.8 C): Days42119200059
110 F (43.3 C): Days4218197315
120 F (48.9 C): Days1119901
0 C (32 F): Frost days (min3950198717
20 C (68 F): Tropical nights (min40116200047
25 C (77 F): Days with min4054198128
10 mm (0.39 in): Days with 10 mm or more rain682319925
25 mm (0.98 in): Days with 25 mm or more rain60819412
50 mm (1.97 in): Days with 50 mm or more rain12219671
100 mm (3.94 in): Days with 100 mm or more rain1119511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

Download the Data

  • Data for Stewart Mtn 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).