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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Ancho Threshold Days by Year (USC00290394)

14 fixed thresholds counted per year at Ancho (USC00290394): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ancho Thresholds

  • Ancho: days with 10 mm (0.39 in) or more of precipitation in 58 years, most in 1941 with 24.
  • Ancho: days with 10 cm (3.9 in) or more of snowfall in 41 years, most in 1949 with 8.
  • Ancho: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1941 with 8.
  • Ancho: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 1924 with 79.
  • 14 fixed thresholds have at least one qualifying day at Ancho.
20 years with a qualifying day
Days at or above 30 C (86 F) per year at Ancho Days per year at Ancho with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1924. 0204060801915: 201919: 431920: 461921: 391922: 641923: 411924: 791925: 471926: 531927: 571960: 721961: 601962: 731965: 491966: 681967: 301968: 441969: 721970: 671971: 561915192019221924192619601962196619681970
Days per year at Ancho with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1924.
Days at or above 30 C (86 F) per year at Ancho
YearDaysDecade average
19152031.5
19194331.5
19204653.3
19213953.3
19226453.3
19234153.3
19247953.3
19254753.3
19265353.3
19275753.3
19607258.5
19616058.5
19627358.5
19654958.5
19666858.5
19673058.5
19684458.5
19697258.5
19706761.5
19715661.5
First to last qualifying date each year at Ancho For each year, a bar from the first to the last day at Ancho meeting 30 C (86 F). 1915: 18 June 1915 to 11 September 19151919: 22 June 1919 to 2 September 19191920: 7 June 1920 to 19 September 19201921: 1 June 1921 to 5 October 19211922: 27 May 1922 to 15 September 19221923: 6 June 1923 to 5 August 19231924: 4 June 1924 to 9 September 19241925: 18 May 1925 to 4 October 19251926: 7 June 1926 to 15 September 19261927: 17 May 1927 to 29 August 19271960: 12 May 1960 to 17 September 19601961: 11 May 1961 to 26 August 19611962: 4 May 1962 to 19 September 19621965: 21 April 1965 to 28 August 19651966: 8 May 1966 to 23 September 19661967: 23 May 1967 to 25 August 19671968: 28 May 1968 to 18 August 19681969: 20 May 1969 to 27 August 19691970: 5 May 1970 to 13 September 19701971: 7 June 1971 to 15 September 19711915192119241927196219671970JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ancho meeting 30 C (86 F).
First to last qualifying date each year at Ancho
YearFirst dateLast date
19151915-06-181915-09-11
19191919-06-221919-09-02
19201920-06-071920-09-19
19211921-06-011921-10-05
19221922-05-271922-09-15
19231923-06-061923-08-05
19241924-06-041924-09-09
19251925-05-181925-10-04
19261926-06-071926-09-15
19271927-05-171927-08-29
19601960-05-121960-09-17
19611961-05-111961-08-26
19621962-05-041962-09-19
19651965-04-211965-08-28
19661966-05-081966-09-23
19671967-05-231967-08-25
19681968-05-281968-08-18
19691969-05-201969-08-27
19701970-05-051970-09-13
19711971-06-071971-09-15

Every Fixed Threshold

Fixed thresholds at Ancho
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2079192456
35 C (95 F): Days121419605
90 F (32.2 C): Days2046192428
100 F (37.8 C): Days2119241
0 C (32 F): Ice days (max201419606
0 C (32 F): Frost days (min191721970146
-10 C (14 F): Days with min1930196120
-20 C (-4 F): Days with min2319713
20 C (68 F): Tropical nights (min4419221
10 mm (0.39 in): Days with 10 mm or more rain582419419
25 mm (0.98 in): Days with 25 mm or more rain40819412
50 mm (1.97 in): Days with 50 mm or more rain6419411
10 cm (3.9 in): Days with 10 cm or more snowfall41819491
25 cm (9.8 in): Days with 25 cm or more snowfall5119231

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

  • Data for Ancho 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).