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Built 2026-10-19 (19 October 2026)

Douglas Threshold Days by Year (USC00022659)

14 fixed thresholds counted per year at Douglas (USC00022659): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Douglas Thresholds

  • Douglas: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1984 with 21.
  • Douglas: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 1989 with 177.
  • Douglas: days with a maximum temperature at or above 35 C (95 F) in 32 years, most in 2003 with 76.
  • Douglas: days with a maximum temperature at or above 90 F (32.2 C) in 32 years, most in 1989 with 138.
  • 14 fixed thresholds have at least one qualifying day at Douglas.
32 years with a qualifying day
Days at or above 30 C (86 F) per year at Douglas Days per year at Douglas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 177 in 1989. 0501001502001965: 1441966: 1461967: 1371968: 1261969: 1451970: 1261971: 1291972: 1411973: 1501974: 1321975: 1321976: 1231977: 1281978: 1451979: 1471980: 1331981: 1361982: 1361983: 1191984: 1371985: 1241986: 1271987: 1221988: 1321989: 1771990: 1391991: 1561992: 1541993: 1502002: 1622003: 1562015: 12919651969197319771981198519891993
Days per year at Douglas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 177 in 1989.
Days at or above 30 C (86 F) per year at Douglas
YearDaysDecade average
1965144139.6
1966146139.6
1967137139.6
1968126139.6
1969145139.6
1970126135.3
1971129135.3
1972141135.3
1973150135.3
1974132135.3
1975132135.3
1976123135.3
1977128135.3
1978145135.3
1979147135.3
1980133134.3
1981136134.3
1982136134.3
1983119134.3
1984137134.3
1985124134.3
1986127134.3
1987122134.3
1988132134.3
1989177134.3
1990139149.8
1991156149.8
1992154149.8
1993150149.8
2002162159
2003156159
2015129129
First to last qualifying date each year at Douglas For each year, a bar from the first to the last day at Douglas meeting 30 C (86 F). 1965: 16 April 1965 to 25 October 19651966: 1 April 1966 to 29 October 19661967: 16 March 1967 to 15 October 19671968: 18 May 1968 to 29 October 19681969: 30 March 1969 to 10 October 19691970: 4 May 1970 to 5 October 19701971: 26 March 1971 to 29 September 19711972: 6 March 1972 to 16 October 19721973: 3 May 1973 to 12 November 19731974: 30 March 1974 to 11 October 19741975: 10 May 1975 to 30 October 19751976: 2 May 1976 to 30 September 19761977: 8 April 1977 to 6 October 19771978: 24 April 1978 to 18 October 19781979: 7 April 1979 to 27 October 19791980: 18 April 1980 to 12 October 19801981: 14 April 1981 to 30 September 19811982: 13 April 1982 to 24 October 19821983: 22 May 1983 to 27 September 19831984: 16 April 1984 to 28 September 19841985: 13 April 1985 to 6 October 19851986: 26 February 1986 to 22 September 19861987: 15 April 1987 to 28 October 19871988: 25 March 1988 to 6 November 19881989: 9 March 1989 to 3 November 19891990: 11 April 1990 to 30 October 19901991: 6 April 1991 to 20 October 19911992: 11 April 1992 to 20 October 19921993: 17 March 1993 to 15 October 19932002: 1 April 2002 to 21 October 20022003: 26 April 2003 to 25 October 20032015: 28 March 2015 to 16 October 201519651969197319771981198519891993JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Douglas meeting 30 C (86 F).
First to last qualifying date each year at Douglas
YearFirst dateLast date
19651965-04-161965-10-25
19661966-04-011966-10-29
19671967-03-161967-10-15
19681968-05-181968-10-29
19691969-03-301969-10-10
19701970-05-041970-10-05
19711971-03-261971-09-29
19721972-03-061972-10-16
19731973-05-031973-11-12
19741974-03-301974-10-11
19751975-05-101975-10-30
19761976-05-021976-09-30
19771977-04-081977-10-06
19781978-04-241978-10-18
19791979-04-071979-10-27
19801980-04-181980-10-12
19811981-04-141981-09-30
19821982-04-131982-10-24
19831983-05-221983-09-27
19841984-04-161984-09-28
19851985-04-131985-10-06
19861986-02-261986-09-22
19871987-04-151987-10-28
19881988-03-251988-11-06
19891989-03-091989-11-03
19901990-04-111990-10-30
19911991-04-061991-10-20
19921992-04-111992-10-20
19931993-03-171993-10-15
20022002-04-012002-10-21
20032003-04-262003-10-25
20152015-03-282015-10-16

Every Fixed Threshold

Fixed thresholds at Douglas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days321771989129
35 C (95 F): Days3276200370
40 C (104 F): Days2214199010
90 F (32.2 C): Days321381989116
100 F (37.8 C): Days3232200220
0 C (32 F): Ice days (max1219782
0 C (32 F): Frost days (min32128197544
-10 C (14 F): Days with min19619712
20 C (68 F): Tropical nights (min3253200350
25 C (77 F): Days with min4320023
10 mm (0.39 in): Days with 10 mm or more rain3421198415
25 mm (0.98 in): Days with 25 mm or more rain32619723
50 mm (1.97 in): Days with 50 mm or more rain9119491
100 mm (3.94 in): Days with 100 mm or more rain1119881

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

  • Data for Douglas 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).