Built 2026-10-19 (19 October 2026)

Mud Mtn Dam Threshold Days by Year (USC00455704)

15 fixed thresholds counted per year at Mud Mtn Dam (USC00455704): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mud Mtn Dam Thresholds

  • Mud Mtn Dam: nights with a minimum temperature at or below 0 C (32 F) in 86 years, most in 2002 with 144.
  • Mud Mtn Dam: days with a maximum temperature at or above 30 C (86 F) in 78 years, most in 2015 with 25.
  • Mud Mtn Dam: days with a maximum temperature at or below 0 C (32 F) in 71 years, most in 1950 with 22.
  • Mud Mtn Dam: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1975 with 69.
  • 15 fixed thresholds have at least one qualifying day at Mud Mtn Dam.
78 years with a qualifying day
Days at or above 30 C (86 F) per year at Mud Mtn Dam Days per year at Mud Mtn Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 2015. 01020301939: 121940: 51941: 91942: 101943: 11944: 41945: 41946: 31947: 11948: 11949: 11950: 51951: 71952: 101953: 31955: 31956: 51958: 151959: 51960: 71961: 91962: 11963: 21965: 51967: 151968: 31969: 21970: 41971: 101972: 51973: 41974: 71977: 91978: 81979: 51980: 31981: 91982: 41983: 11984: 31985: 131986: 91987: 71988: 101989: 31990: 151991: 91992: 151993: 41994: 71995: 51996: 131997: 61998: 101999: 12002: 22003: 172004: 32006: 112007: 32008: 72010: 82011: 32012: 42013: 32014: 62015: 252016: 112017: 202018: 202019: 52020: 82021: 172022: 192023: 142024: 132025: 162026: 101939194719561967197719851993200320132021
Days per year at Mud Mtn Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 2015.
Days at or above 30 C (86 F) per year at Mud Mtn Dam
YearDaysDecade average
19391212
194053.9
194193.9
1942103.9
194313.9
194443.9
194543.9
194633.9
194713.9
194813.9
194913.9
195056.6
195176.6
1952106.6
195336.6
195536.6
195656.6
1958156.6
195956.6
196075.5
196195.5
196215.5
196325.5
196555.5
1967155.5
196835.5
196925.5
197046.5
1971106.5
197256.5
197346.5
197476.5
197796.5
197886.5
197956.5
198036.2
198196.2
198246.2
198316.2
198436.2
1985136.2
198696.2
198776.2
1988106.2
198936.2
1990158.5
199198.5
1992158.5
199348.5
199478.5
199558.5
1996138.5
199768.5
1998108.5
199918.5
200227.2
2003177.2
200437.2
2006117.2
200737.2
200877.2
2010810.5
2011310.5
2012410.5
2013310.5
2014610.5
20152510.5
20161110.5
20172010.5
20182010.5
2019510.5
2020813.9
20211713.9
20221913.9
20231413.9
20241313.9
20251613.9
20261013.9
First to last qualifying date each year at Mud Mtn Dam For each year, a bar from the first to the last day at Mud Mtn Dam meeting 30 C (86 F). 1939: 14 May 1939 to 21 August 19391940: 11 June 1940 to 18 August 19401941: 11 June 1941 to 19 August 19411942: 30 June 1942 to 23 August 19421943: 25 September 1943 to 25 September 19431944: 19 July 1944 to 11 September 19441945: 8 July 1945 to 7 August 19451946: 3 May 1946 to 19 August 19461947: 18 July 1947 to 18 July 19471948: 1 August 1948 to 1 August 19481949: 2 August 1949 to 2 August 19491950: 22 July 1950 to 22 September 19501951: 30 June 1951 to 16 September 19511952: 8 July 1952 to 23 September 19521953: 8 July 1953 to 12 September 19531955: 9 June 1955 to 6 September 19551956: 18 May 1956 to 13 August 19561958: 18 June 1958 to 8 September 19581959: 19 July 1959 to 1 August 19591960: 7 July 1960 to 10 August 19601961: 18 June 1961 to 20 August 19611962: 30 July 1962 to 30 July 19621963: 21 May 1963 to 22 May 19631965: 25 July 1965 to 2 August 19651967: 20 June 1967 to 28 September 19671968: 3 July 1968 to 2 August 19681969: 24 May 1969 to 17 June 19691970: 2 June 1970 to 16 July 19701971: 12 May 1971 to 12 August 19711972: 29 May 1972 to 9 August 19721973: 14 May 1973 to 6 September 19731974: 1 August 1974 to 25 September 19741977: 4 August 1977 to 18 August 19771978: 4 June 1978 to 10 August 19781979: 17 July 1979 to 15 September 19791980: 22 July 1980 to 6 October 19801981: 28 July 1981 to 8 September 19811982: 19 June 1982 to 25 August 19821983: 29 May 1983 to 29 May 19831984: 17 July 1984 to 25 July 19841985: 19 June 1985 to 24 August 19851986: 14 June 1986 to 28 August 19861987: 30 June 1987 to 2 October 19871988: 20 July 1988 to 14 September 19881989: 5 June 1989 to 23 September 19891990: 12 July 1990 to 24 September 19901991: 3 July 1991 to 12 October 19911992: 25 May 1992 to 18 August 19921993: 4 August 1993 to 8 September 19931994: 20 July 1994 to 23 September 19941995: 29 June 1995 to 20 July 19951996: 13 July 1996 to 30 August 19961997: 5 July 1997 to 25 September 19971998: 17 July 1998 to 2 September 19981999: 14 June 1999 to 14 June 19992002: 23 July 2002 to 29 August 20022003: 6 June 2003 to 6 September 20032004: 24 July 2004 to 10 August 20042006: 26 June 2006 to 3 September 20062007: 11 July 2007 to 30 August 20072008: 18 May 2008 to 17 August 20082010: 8 July 2010 to 26 August 20102011: 22 August 2011 to 12 September 20112012: 5 August 2012 to 18 August 20122013: 1 July 2013 to 12 September 20132014: 2 July 2014 to 12 August 20142015: 8 June 2015 to 20 August 20152016: 19 April 2016 to 27 August 20162017: 25 June 2017 to 6 September 20172018: 21 June 2018 to 23 August 20182019: 13 June 2019 to 29 August 20192020: 28 July 2020 to 11 September 20202021: 2 June 2021 to 15 August 20212022: 26 June 2022 to 1 September 20222023: 14 May 2023 to 27 August 20232024: 6 July 2024 to 7 September 20242025: 9 June 2025 to 27 August 20252026: 15 June 2026 to 26 August 202619391949196119731985199520082019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mud Mtn Dam meeting 30 C (86 F).
First to last qualifying date each year at Mud Mtn Dam
YearFirst dateLast date
19391939-05-141939-08-21
19401940-06-111940-08-18
19411941-06-111941-08-19
19421942-06-301942-08-23
19431943-09-251943-09-25
19441944-07-191944-09-11
19451945-07-081945-08-07
19461946-05-031946-08-19
19471947-07-181947-07-18
19481948-08-011948-08-01
19491949-08-021949-08-02
19501950-07-221950-09-22
19511951-06-301951-09-16
19521952-07-081952-09-23
19531953-07-081953-09-12
19551955-06-091955-09-06
19561956-05-181956-08-13
19581958-06-181958-09-08
19591959-07-191959-08-01
19601960-07-071960-08-10
19611961-06-181961-08-20
19621962-07-301962-07-30
19631963-05-211963-05-22
19651965-07-251965-08-02
19671967-06-201967-09-28
19681968-07-031968-08-02
19691969-05-241969-06-17
19701970-06-021970-07-16
19711971-05-121971-08-12
19721972-05-291972-08-09
19731973-05-141973-09-06
19741974-08-011974-09-25
19771977-08-041977-08-18
19781978-06-041978-08-10
19791979-07-171979-09-15
19801980-07-221980-10-06
19811981-07-281981-09-08
19821982-06-191982-08-25
19831983-05-291983-05-29
19841984-07-171984-07-25
19851985-06-191985-08-24
19861986-06-141986-08-28
19871987-06-301987-10-02
19881988-07-201988-09-14
19891989-06-051989-09-23
19901990-07-121990-09-24
19911991-07-031991-10-12
19921992-05-251992-08-18
19931993-08-041993-09-08
19941994-07-201994-09-23
19951995-06-291995-07-20
19961996-07-131996-08-30
19971997-07-051997-09-25
19981998-07-171998-09-02
19991999-06-141999-06-14
20022002-07-232002-08-29
20032003-06-062003-09-06
20042004-07-242004-08-10
20062006-06-262006-09-03
20072007-07-112007-08-30
20082008-05-182008-08-17
20102010-07-082010-08-26
20112011-08-222011-09-12
20122012-08-052012-08-18
20132013-07-012013-09-12
20142014-07-022014-08-12
20152015-06-082015-08-20
20162016-04-192016-08-27
20172017-06-252017-09-06
20182018-06-212018-08-23
20192019-06-132019-08-29
20202020-07-282020-09-11
20212021-06-022021-08-15
20222022-06-262022-09-01
20232023-05-142023-08-27
20242024-07-062024-09-07
20252025-06-092025-08-27
20262026-06-152026-08-26

Every Fixed Threshold

Fixed thresholds at Mud Mtn Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days7825201510
35 C (95 F): Days16320231
40 C (104 F): Days1120211
90 F (32.2 C): Days611220153
100 F (37.8 C): Days1220212
0 C (32 F): Ice days (max712219501
0 C (32 F): Frost days (min86144200232
-10 C (14 F): Days with min422019503
20 C (68 F): Tropical nights (min10319421
10 mm (0.39 in): Days with 10 mm or more rain6569197514
25 mm (0.98 in): Days with 25 mm or more rain651719975
50 mm (1.97 in): Days with 50 mm or more rain37520074
100 mm (3.94 in): Days with 100 mm or more rain1119861
10 cm (3.9 in): Days with 10 cm or more snowfall28619711
25 cm (9.8 in): Days with 25 cm or more snowfall6219461

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for Mud 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).