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

Pearl Threshold Days by Year (USC00296659)

18 fixed thresholds counted per year at Pearl (USC00296659): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pearl Thresholds

  • Pearl: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 1941 with 30.
  • Pearl: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1941 with 10.
  • Pearl: nights with a minimum temperature at or below 0 C (32 F) in 58 years, most in 1988 with 115.
  • Pearl: nights with a minimum temperature at or below -10 C (14 F) in 56 years, most in 1963 with 17.
  • 18 fixed thresholds have at least one qualifying day at Pearl.
55 years with a qualifying day
Days at or above 30 C (86 F) per year at Pearl Days per year at Pearl with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 143 in 1989. 0501001501906: 1071907: 1391908: 1261917: 1261921: 1151934: 1201940: 1251941: 941942: 1161944: 1151945: 1351946: 1161947: 1351948: 1351949: 921950: 1301951: 1331952: 1231953: 1191954: 1331955: 1281956: 1231957: 911958: 1001959: 1231960: 871961: 1221962: 1291963: 1281964: 1251965: 1171966: 931967: 971968: 911969: 1031970: 1061971: 981972: 931974: 1101975: 831976: 931977: 1271980: 1201981: 971982: 1161983: 1251984: 861985: 1091986: 931987: 971988: 1081989: 1431990: 1091991: 1141995: 1141906194019471953195919651971198019861995
Days per year at Pearl with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 143 in 1989.
Days at or above 30 C (86 F) per year at Pearl
YearDaysDecade average
1906107124
1907139124
1908126124
1917126126
1921115115
1934120120
1940125118.1
194194118.1
1942116118.1
1944115118.1
1945135118.1
1946116118.1
1947135118.1
1948135118.1
194992118.1
1950130120.3
1951133120.3
1952123120.3
1953119120.3
1954133120.3
1955128120.3
1956123120.3
195791120.3
1958100120.3
1959123120.3
196087109.2
1961122109.2
1962129109.2
1963128109.2
1964125109.2
1965117109.2
196693109.2
196797109.2
196891109.2
1969103109.2
1970106101.4
197198101.4
197293101.4
1974110101.4
197583101.4
197693101.4
1977127101.4
1980120109.4
198197109.4
1982116109.4
1983125109.4
198486109.4
1985109109.4
198693109.4
198797109.4
1988108109.4
1989143109.4
1990109112.3
1991114112.3
1995114112.3
First to last qualifying date each year at Pearl For each year, a bar from the first to the last day at Pearl meeting 30 C (86 F). 1906: 11 April 1906 to 10 November 19061907: 10 March 1907 to 2 October 19071908: 5 March 1908 to 4 October 19081917: 30 March 1917 to 1 November 19171921: 23 April 1921 to 14 November 19211934: 1 April 1934 to 17 October 19341940: 29 February 1940 to 19 October 19401941: 12 April 1941 to 13 October 19411942: 2 April 1942 to 9 October 19421944: 6 April 1944 to 14 October 19441945: 1 May 1945 to 31 October 19451946: 30 March 1946 to 22 October 19461947: 3 April 1947 to 21 October 19471948: 10 April 1948 to 14 October 19481949: 13 April 1949 to 8 October 19491950: 3 April 1950 to 31 October 19501951: 14 April 1951 to 16 October 19511952: 7 April 1952 to 27 October 19521953: 10 January 1953 to 16 October 19531954: 4 April 1954 to 20 October 19541955: 15 April 1955 to 21 October 19551956: 25 April 1956 to 8 October 19561957: 18 April 1957 to 8 October 19571958: 22 April 1958 to 8 October 19581959: 2 April 1959 to 25 October 19591960: 11 April 1960 to 8 October 19601961: 4 April 1961 to 23 October 19611962: 13 April 1962 to 15 October 19621963: 28 March 1963 to 8 October 19631964: 17 April 1964 to 11 October 19641965: 17 April 1965 to 15 October 19651966: 8 May 1966 to 2 October 19661967: 28 March 1967 to 6 October 19671968: 2 May 1968 to 15 October 19681969: 1 April 1969 to 9 October 19691970: 7 May 1970 to 24 September 19701971: 26 March 1971 to 16 September 19711972: 12 March 1972 to 17 October 19721974: 30 March 1974 to 11 September 19741975: 16 April 1975 to 5 October 19751976: 14 April 1976 to 13 September 19761977: 1 May 1977 to 30 September 19771980: 10 April 1980 to 5 October 19801981: 9 April 1981 to 4 October 19811982: 11 April 1982 to 18 October 19821983: 25 April 1983 to 7 October 19831984: 11 April 1984 to 24 September 19841985: 3 April 1985 to 7 October 19851986: 31 March 1986 to 1 October 19861987: 15 April 1987 to 30 October 19871988: 24 March 1988 to 25 October 19881989: 11 March 1989 to 15 October 19891990: 13 April 1990 to 27 September 19901991: 7 April 1991 to 18 October 19911995: 19 March 1995 to 18 October 199519061941194919561963197019801987JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Pearl meeting 30 C (86 F).
First to last qualifying date each year at Pearl
YearFirst dateLast date
19061906-04-111906-11-10
19071907-03-101907-10-02
19081908-03-051908-10-04
19171917-03-301917-11-01
19211921-04-231921-11-14
19341934-04-011934-10-17
19401940-02-291940-10-19
19411941-04-121941-10-13
19421942-04-021942-10-09
19441944-04-061944-10-14
19451945-05-011945-10-31
19461946-03-301946-10-22
19471947-04-031947-10-21
19481948-04-101948-10-14
19491949-04-131949-10-08
19501950-04-031950-10-31
19511951-04-141951-10-16
19521952-04-071952-10-27
19531953-01-101953-10-16
19541954-04-041954-10-20
19551955-04-151955-10-21
19561956-04-251956-10-08
19571957-04-181957-10-08
19581958-04-221958-10-08
19591959-04-021959-10-25
19601960-04-111960-10-08
19611961-04-041961-10-23
19621962-04-131962-10-15
19631963-03-281963-10-08
19641964-04-171964-10-11
19651965-04-171965-10-15
19661966-05-081966-10-02
19671967-03-281967-10-06
19681968-05-021968-10-15
19691969-04-011969-10-09
19701970-05-071970-09-24
19711971-03-261971-09-16
19721972-03-121972-10-17
19741974-03-301974-09-11
19751975-04-161975-10-05
19761976-04-141976-09-13
19771977-05-011977-09-30
19801980-04-101980-10-05
19811981-04-091981-10-04
19821982-04-111982-10-18
19831983-04-251983-10-07
19841984-04-111984-09-24
19851985-04-031985-10-07
19861986-03-311986-10-01
19871987-04-151987-10-30
19881988-03-241988-10-25
19891989-03-111989-10-15
19901990-04-131990-09-27
19911991-04-071991-10-18
19951995-03-191995-10-18

Every Fixed Threshold

Fixed thresholds at Pearl
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days551431989114
35 C (95 F): Days5574193431
40 C (104 F): Days26919803
90 F (32.2 C): Days55113190780
100 F (37.8 C): Days543519809
0 C (32 F): Ice days (max40819604
0 C (32 F): Frost days (min58115198865
-10 C (14 F): Days with min561719632
-20 C (-4 F): Days with min5119481
20 C (68 F): Tropical nights (min5548195517
25 C (77 F): Days with min7519551
10 mm (0.39 in): Days with 10 mm or more rain6730194110
25 mm (0.98 in): Days with 25 mm or more rain641019411
50 mm (1.97 in): Days with 50 mm or more rain33319081
100 mm (3.94 in): Days with 100 mm or more rain7119411
200 mm (7.87 in): Days with 200 mm or more rain1119751
10 cm (3.9 in): Days with 10 cm or more snowfall15219461
25 cm (9.8 in): Days with 25 cm or more snowfall1119801

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1906.

Download the Data

  • Data for Pearl 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).