Built 2026-10-19 (19 October 2026)

Red Willow Dam Threshold Days by Year (USC00257110)

17 fixed thresholds counted per year at Red Willow Dam (USC00257110): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Red Willow Dam Thresholds

  • Red Willow Dam: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1965 with 23.
  • Red Willow Dam: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1965 with 8.
  • Red Willow Dam: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1963 with 96.
  • Red Willow Dam: days with a maximum temperature at or above 35 C (95 F) in 36 years, most in 2012 with 50.
  • 17 fixed thresholds have at least one qualifying day at Red Willow Dam.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Red Willow Dam Days per year at Red Willow Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 96 in 1963. 02550751001963: 961964: 511965: 551966: 701967: 541968: 751969: 541970: 831971: 741972: 641973: 651975: 711976: 671977: 571984: 671985: 641987: 721988: 761990: 761993: 371996: 401997: 681998: 781999: 502000: 892001: 802002: 852003: 812004: 702005: 772007: 692008: 482009: 422010: 602011: 642012: 95196319671971197619871996200020042009
Days per year at Red Willow Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 96 in 1963.
Days at or above 30 C (86 F) per year at Red Willow Dam
YearDaysDecade average
19639665
19645165
19655565
19667065
19675465
19687565
19695465
19708368.7
19717468.7
19726468.7
19736568.7
19757168.7
19766768.7
19775768.7
19846769.8
19856469.8
19877269.8
19887669.8
19907658.2
19933758.2
19964058.2
19976858.2
19987858.2
19995058.2
20008971.2
20018071.2
20028571.2
20038171.2
20047071.2
20057771.2
20076971.2
20084871.2
20094271.2
20106073
20116473
20129573
First to last qualifying date each year at Red Willow Dam For each year, a bar from the first to the last day at Red Willow Dam meeting 30 C (86 F). 1963: 29 March 1963 to 11 October 19631964: 17 April 1964 to 17 October 19641965: 23 April 1965 to 10 October 19651966: 5 May 1966 to 14 October 19661967: 30 March 1967 to 13 October 19671968: 12 April 1968 to 31 October 19681969: 26 May 1969 to 1 October 19691970: 7 May 1970 to 6 October 19701971: 17 June 1971 to 11 October 19711972: 18 April 1972 to 3 October 19721973: 18 May 1973 to 9 October 19731975: 27 April 1975 to 13 October 19751976: 20 May 1976 to 1 October 19761977: 10 April 1977 to 27 October 19771984: 16 May 1984 to 24 September 19841985: 16 April 1985 to 9 October 19851987: 18 April 1987 to 5 October 19871988: 8 April 1988 to 27 September 19881990: 23 April 1990 to 6 October 19901993: 15 May 1993 to 7 October 19931996: 3 April 1996 to 13 October 19961997: 17 May 1997 to 11 October 19971998: 5 May 1998 to 29 September 19981999: 5 June 1999 to 26 September 19992000: 14 April 2000 to 2 October 20002001: 2 May 2001 to 3 October 20012002: 15 April 2002 to 18 September 20022003: 2 April 2003 to 23 October 20032004: 20 March 2004 to 20 September 20042005: 18 May 2005 to 3 October 20052007: 30 April 2007 to 7 October 20072008: 21 April 2008 to 29 September 20082009: 24 April 2009 to 1 October 20092010: 23 May 2010 to 9 October 20102011: 10 April 2011 to 5 October 20112012: 2 April 2012 to 4 October 201219631968197319851996200120072012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Red Willow Dam meeting 30 C (86 F).
First to last qualifying date each year at Red Willow Dam
YearFirst dateLast date
19631963-03-291963-10-11
19641964-04-171964-10-17
19651965-04-231965-10-10
19661966-05-051966-10-14
19671967-03-301967-10-13
19681968-04-121968-10-31
19691969-05-261969-10-01
19701970-05-071970-10-06
19711971-06-171971-10-11
19721972-04-181972-10-03
19731973-05-181973-10-09
19751975-04-271975-10-13
19761976-05-201976-10-01
19771977-04-101977-10-27
19841984-05-161984-09-24
19851985-04-161985-10-09
19871987-04-181987-10-05
19881988-04-081988-09-27
19901990-04-231990-10-06
19931993-05-151993-10-07
19961996-04-031996-10-13
19971997-05-171997-10-11
19981998-05-051998-09-29
19991999-06-051999-09-26
20002000-04-142000-10-02
20012001-05-022001-10-03
20022002-04-152002-09-18
20032003-04-022003-10-23
20042004-03-202004-09-20
20052005-05-182005-10-03
20072007-04-302007-10-07
20082008-04-212008-09-29
20092009-04-242009-10-01
20102010-05-232010-10-09
20112011-04-102011-10-05
20122012-04-022012-10-04

Every Fixed Threshold

Fixed thresholds at Red Willow Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3696196395
35 C (95 F): Days3650201250
40 C (104 F): Days17520054
90 F (32.2 C): Days3676201276
100 F (37.8 C): Days3221201221
0 C (32 F): Ice days (max3646196617
0 C (32 F): Frost days (min331842009168
-10 C (14 F): Days with min3370201155
-20 C (-4 F): Days with min311919633
-30 C (-22 F): Days with min1219632
20 C (68 F): Tropical nights (min301519637
10 mm (0.39 in): Days with 10 mm or more rain4323196517
25 mm (0.98 in): Days with 25 mm or more rain43819656
50 mm (1.97 in): Days with 50 mm or more rain24219761
100 mm (3.94 in): Days with 100 mm or more rain2120081
10 cm (3.9 in): Days with 10 cm or more snowfall28419841
25 cm (9.8 in): Days with 25 cm or more snowfall4119751

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

  • Data for Red Willow 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 (2025-12-31).