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

Topaz Threshold Days by Year (ASN00031058)

5 fixed thresholds counted per year at Topaz (ASN00031058): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Topaz Thresholds

  • Topaz: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1959 with 138.
  • Topaz: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1959 with 71.
  • Topaz: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1964 with 37.
  • Topaz: days with 100 mm (3.94 in) or more of precipitation in 29 years, most in 1964 with 15.
  • 5 fixed thresholds have at least one qualifying day at Topaz.
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Topaz Days per year at Topaz with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 138 in 1959. 0501001501932: 781933: 1001934: 1231935: 761936: 1051937: 711938: 861939: 911940: 931945: 691946: 491947: 571948: 541949: 701950: 771951: 281952: 471953: 631954: 781955: 911956: 901957: 1091958: 931959: 1381962: 501963: 821964: 661965: 621966: 471969: 951932193519381945194819511954195719621965
Days per year at Topaz with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 138 in 1959.
Days with 10 mm (0.39 in) or more of precipitation per year at Topaz
YearDaysDecade average
19327891.3
193310091.3
193412391.3
19357691.3
193610591.3
19377191.3
19388691.3
19399191.3
19409365.3
19456965.3
19464965.3
19475765.3
19485465.3
19497065.3
19507781.4
19512881.4
19524781.4
19536381.4
19547881.4
19559181.4
19569081.4
195710981.4
19589381.4
195913881.4
19625067
19638267
19646667
19656267
19664767
19699567
First to last qualifying date each year at Topaz For each year, a bar from the first to the last day at Topaz meeting 10 mm (0.39 in). 1932: 1 January 1932 to 27 December 19321933: 8 January 1933 to 31 December 19331934: 1 January 1934 to 22 November 19341935: 7 January 1935 to 31 December 19351936: 1 January 1936 to 25 December 19361937: 4 January 1937 to 29 December 19371938: 13 January 1938 to 28 December 19381939: 6 January 1939 to 31 December 19391940: 1 January 1940 to 10 November 19401945: 3 January 1945 to 31 December 19451946: 8 January 1946 to 28 December 19461947: 1 January 1947 to 4 December 19471948: 2 January 1948 to 31 December 19481949: 3 January 1949 to 28 December 19491950: 12 January 1950 to 26 December 19501951: 7 March 1951 to 31 December 19511952: 13 January 1952 to 22 December 19521953: 1 February 1953 to 17 December 19531954: 17 January 1954 to 27 December 19541955: 26 January 1955 to 16 December 19551956: 7 January 1956 to 31 December 19561957: 1 January 1957 to 31 December 19571958: 2 January 1958 to 20 December 19581959: 2 January 1959 to 28 December 19591962: 29 January 1962 to 24 December 19621963: 2 January 1963 to 22 December 19631964: 5 January 1964 to 30 December 19641965: 5 January 1965 to 24 December 19651966: 7 January 1966 to 8 December 19661969: 19 January 1969 to 28 December 196919321936194019481952195619621966JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Topaz meeting 10 mm (0.39 in).
First to last qualifying date each year at Topaz
YearFirst dateLast date
19321932-01-011932-12-27
19331933-01-081933-12-31
19341934-01-011934-11-22
19351935-01-071935-12-31
19361936-01-011936-12-25
19371937-01-041937-12-29
19381938-01-131938-12-28
19391939-01-061939-12-31
19401940-01-011940-11-10
19451945-01-031945-12-31
19461946-01-081946-12-28
19471947-01-011947-12-04
19481948-01-021948-12-31
19491949-01-031949-12-28
19501950-01-121950-12-26
19511951-03-071951-12-31
19521952-01-131952-12-22
19531953-02-011953-12-17
19541954-01-171954-12-27
19551955-01-261955-12-16
19561956-01-071956-12-31
19571957-01-011957-12-31
19581958-01-021958-12-20
19591959-01-021959-12-28
19621962-01-291962-12-24
19631963-01-021963-12-22
19641964-01-051964-12-30
19651965-01-051965-12-24
19661966-01-071966-12-08
19691969-01-191969-12-28

Every Fixed Threshold

Fixed thresholds at Topaz
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain30138195995
25 mm (0.98 in): Days with 25 mm or more rain3071195949
50 mm (1.97 in): Days with 50 mm or more rain2937196425
100 mm (3.94 in): Days with 100 mm or more rain2915196410
200 mm (7.87 in): Days with 200 mm or more rain13419351

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1932.

Download the Data

  • Data for Topaz 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).