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Built 2026-10-19 (19 October 2026)

Whatley Threshold Days by Year (USC00018867)

16 fixed thresholds counted per year at Whatley (USC00018867): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Whatley Thresholds

  • Whatley: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1975 with 65.
  • Whatley: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1975 with 31.
  • Whatley: days with 50 mm (1.97 in) or more of precipitation in 64 years, most in 1975 with 17.
  • Whatley: days with a maximum temperature at or above 30 C (86 F) in 47 years, most in 1963 with 175.
  • 16 fixed thresholds have at least one qualifying day at Whatley.
47 years with a qualifying day
Days at or above 30 C (86 F) per year at Whatley Days per year at Whatley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 175 in 1963. 0501001502001957: 1301958: 1281959: 1311960: 1301961: 1201962: 1661963: 1751964: 1101965: 1601966: 1071967: 1321968: 1441969: 1321970: 1421971: 1551972: 1701973: 1581974: 1491975: 1361976: 1291977: 1501978: 1211979: 1141980: 1401981: 1341982: 1371984: 1181985: 1171986: 1451987: 1261988: 1001989: 671990: 1321991: 1161992: 1021993: 1211994: 1031995: 1311996: 1221997: 1121998: 1341999: 1202000: 1512003: 1142004: 1012005: 1252006: 1411957196219671972197719821988199319982005
Days per year at Whatley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 175 in 1963.
Days at or above 30 C (86 F) per year at Whatley
YearDaysDecade average
1957130129.7
1958128129.7
1959131129.7
1960130137.6
1961120137.6
1962166137.6
1963175137.6
1964110137.6
1965160137.6
1966107137.6
1967132137.6
1968144137.6
1969132137.6
1970142142.4
1971155142.4
1972170142.4
1973158142.4
1974149142.4
1975136142.4
1976129142.4
1977150142.4
1978121142.4
1979114142.4
1980140120.4
1981134120.4
1982137120.4
1984118120.4
1985117120.4
1986145120.4
1987126120.4
1988100120.4
198967120.4
1990132119.3
1991116119.3
1992102119.3
1993121119.3
1994103119.3
1995131119.3
1996122119.3
1997112119.3
1998134119.3
1999120119.3
2000151126.4
2003114126.4
2004101126.4
2005125126.4
2006141126.4
First to last qualifying date each year at Whatley For each year, a bar from the first to the last day at Whatley meeting 30 C (86 F). 1957: 8 April 1957 to 22 September 19571958: 4 April 1958 to 10 October 19581959: 7 April 1959 to 13 October 19591960: 7 April 1960 to 15 October 19601961: 5 May 1961 to 2 November 19611962: 13 February 1962 to 20 October 19621963: 13 March 1963 to 28 October 19631964: 18 April 1964 to 1 October 19641965: 31 March 1965 to 7 November 19651966: 1 April 1966 to 14 October 19661967: 12 March 1967 to 15 October 19671968: 20 March 1968 to 15 October 19681969: 2 April 1969 to 20 October 19691970: 18 April 1970 to 11 October 19701971: 16 April 1971 to 31 October 19711972: 28 March 1972 to 28 October 19721973: 22 April 1973 to 26 November 19731974: 8 March 1974 to 3 November 19741975: 23 March 1975 to 28 October 19751976: 2 March 1976 to 14 October 19761977: 15 March 1977 to 2 October 19771978: 1 April 1978 to 27 October 19781979: 9 May 1979 to 21 October 19791980: 22 April 1980 to 10 November 19801981: 10 April 1981 to 17 October 19811982: 15 March 1982 to 29 October 19821984: 27 April 1984 to 30 October 19841985: 29 March 1985 to 17 October 19851986: 4 April 1986 to 8 November 19861987: 19 April 1987 to 19 October 19871988: 4 April 1988 to 30 September 19881989: 1 June 1989 to 7 October 19891990: 30 April 1990 to 16 October 19901991: 25 March 1991 to 12 October 19911992: 12 April 1992 to 22 September 19921993: 5 May 1993 to 20 October 19931994: 20 April 1994 to 1 October 19941995: 22 March 1995 to 2 October 19951996: 4 May 1996 to 28 October 19961997: 29 March 1997 to 13 October 19971998: 30 March 1998 to 6 October 19981999: 8 April 1999 to 14 October 19992000: 8 May 2000 to 2 November 20002003: 13 April 2003 to 24 October 20032004: 24 April 2004 to 5 October 20042005: 12 May 2005 to 20 October 20052006: 2 April 2006 to 20 October 200619571963196919751981198819942000JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Whatley meeting 30 C (86 F).
First to last qualifying date each year at Whatley
YearFirst dateLast date
19571957-04-081957-09-22
19581958-04-041958-10-10
19591959-04-071959-10-13
19601960-04-071960-10-15
19611961-05-051961-11-02
19621962-02-131962-10-20
19631963-03-131963-10-28
19641964-04-181964-10-01
19651965-03-311965-11-07
19661966-04-011966-10-14
19671967-03-121967-10-15
19681968-03-201968-10-15
19691969-04-021969-10-20
19701970-04-181970-10-11
19711971-04-161971-10-31
19721972-03-281972-10-28
19731973-04-221973-11-26
19741974-03-081974-11-03
19751975-03-231975-10-28
19761976-03-021976-10-14
19771977-03-151977-10-02
19781978-04-011978-10-27
19791979-05-091979-10-21
19801980-04-221980-11-10
19811981-04-101981-10-17
19821982-03-151982-10-29
19841984-04-271984-10-30
19851985-03-291985-10-17
19861986-04-041986-11-08
19871987-04-191987-10-19
19881988-04-041988-09-30
19891989-06-011989-10-07
19901990-04-301990-10-16
19911991-03-251991-10-12
19921992-04-121992-09-22
19931993-05-051993-10-20
19941994-04-201994-10-01
19951995-03-221995-10-02
19961996-05-041996-10-28
19971997-03-291997-10-13
19981998-03-301998-10-06
19991999-04-081999-10-14
20002000-05-082000-11-02
20032003-04-132003-10-24
20042004-04-242004-10-05
20052005-05-122005-10-20
20062006-04-022006-10-20

Every Fixed Threshold

Fixed thresholds at Whatley
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days471751963141
35 C (95 F): Days4479196241
40 C (104 F): Days2119631
90 F (32.2 C): Days471331962108
100 F (37.8 C): Days211720004
0 C (32 F): Ice days (max9319772
0 C (32 F): Frost days (min4386196831
-10 C (14 F): Days with min26719621
20 C (68 F): Tropical nights (min43115199980
25 C (77 F): Days with min131919997
10 mm (0.39 in): Days with 10 mm or more rain6465197537
25 mm (0.98 in): Days with 25 mm or more rain6431197521
50 mm (1.97 in): Days with 50 mm or more rain641719757
100 mm (3.94 in): Days with 100 mm or more rain33319601
200 mm (7.87 in): Days with 200 mm or more rain4119411
10 cm (3.9 in): Days with 10 cm or more snowfall2119681

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.

Download the Data

  • Data for Whatley 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).