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

Coupeville 1 S Threshold Days by Year (USC00451783)

11 fixed thresholds counted per year at Coupeville 1 S (USC00451783): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Coupeville 1 S Thresholds

  • Coupeville 1 S: days with 10 mm (0.39 in) or more of precipitation in 99 years, most in 1984 with 20.
  • Coupeville 1 S: nights with a minimum temperature at or below 0 C (32 F) in 95 years, most in 1985 with 80.
  • Coupeville 1 S: days with a maximum temperature at or below 0 C (32 F) in 57 years, most in 1950 with 20.
  • Coupeville 1 S: days with a maximum temperature at or above 30 C (86 F) in 51 years, most in 1958 with 20.
  • 11 fixed thresholds have at least one qualifying day at Coupeville 1 S.
51 years with a qualifying day
Days at or above 30 C (86 F) per year at Coupeville 1 S Days per year at Coupeville 1 S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 1958. 051015201896: 11898: 81902: 11903: 11905: 11907: 21926: 41928: 61930: 21931: 31932: 11933: 31935: 41938: 41939: 21941: 41944: 11951: 31952: 11955: 11956: 11958: 201959: 51960: 51961: 51962: 41963: 11965: 21966: 11967: 31968: 11969: 11970: 21971: 31972: 31974: 21977: 41978: 21981: 51982: 11986: 21988: 21991: 12000: 12002: 22003: 52004: 32006: 52007: 22009: 52010: 4189619261935195219611968197719912007
Days per year at Coupeville 1 S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 1958.
Days at or above 30 C (86 F) per year at Coupeville 1 S
YearDaysDecade average
189614.5
189884.5
190211.3
190311.3
190511.3
190721.3
192645
192865
193022.7
193132.7
193212.7
193332.7
193542.7
193842.7
193922.7
194142.5
194412.5
195135.2
195215.2
195515.2
195615.2
1958205.2
195955.2
196052.6
196152.6
196242.6
196312.6
196522.6
196612.6
196732.6
196812.6
196912.6
197022.7
197132.7
197232.7
197422.7
197742.7
197822.7
198152.5
198212.5
198622.5
198822.5
199111
200013.3
200223.3
200353.3
200433.3
200653.3
200723.3
200953.3
201044
First to last qualifying date each year at Coupeville 1 S For each year, a bar from the first to the last day at Coupeville 1 S meeting 30 C (86 F). 1896: 26 June 1896 to 26 June 18961898: 29 July 1898 to 7 September 18981902: 19 July 1902 to 19 July 19021903: 8 June 1903 to 8 June 19031905: 8 July 1905 to 8 July 19051907: 30 July 1907 to 9 September 19071926: 12 May 1926 to 11 July 19261928: 21 July 1928 to 26 July 19281930: 12 July 1930 to 11 August 19301931: 7 July 1931 to 9 August 19311932: 10 June 1932 to 10 June 19321933: 15 August 1933 to 26 August 19331935: 13 July 1935 to 28 August 19351938: 14 July 1938 to 22 July 19381939: 8 August 1939 to 9 August 19391941: 14 July 1941 to 17 July 19411944: 18 July 1944 to 18 July 19441951: 29 June 1951 to 12 July 19511952: 4 August 1952 to 4 August 19521955: 9 June 1955 to 9 June 19551956: 19 July 1956 to 19 July 19561958: 5 June 1958 to 25 August 19581959: 18 July 1959 to 31 July 19591960: 26 July 1960 to 9 August 19601961: 11 July 1961 to 13 September 19611962: 22 July 1962 to 28 July 19621963: 15 June 1963 to 15 June 19631965: 30 July 1965 to 31 July 19651966: 20 August 1966 to 20 August 19661967: 16 August 1967 to 16 September 19671968: 1 August 1968 to 1 August 19681969: 17 June 1969 to 17 June 19691970: 1 June 1970 to 2 June 19701971: 26 July 1971 to 10 August 19711972: 17 July 1972 to 8 August 19721974: 29 August 1974 to 2 September 19741977: 10 August 1977 to 17 August 19771978: 21 July 1978 to 22 July 19781981: 7 August 1981 to 11 August 19811982: 18 June 1982 to 18 June 19821986: 7 August 1986 to 6 September 19861988: 19 July 1988 to 25 July 19881991: 23 July 1991 to 23 July 19912000: 27 June 2000 to 27 June 20002002: 13 June 2002 to 13 August 20022003: 6 June 2003 to 30 July 20032004: 23 July 2004 to 9 August 20042006: 25 June 2006 to 23 July 20062007: 10 July 2007 to 11 July 20072009: 4 June 2009 to 30 July 20092010: 8 July 2010 to 16 August 201018961928193919581966197419912009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Coupeville 1 S meeting 30 C (86 F).
First to last qualifying date each year at Coupeville 1 S
YearFirst dateLast date
18961896-06-261896-06-26
18981898-07-291898-09-07
19021902-07-191902-07-19
19031903-06-081903-06-08
19051905-07-081905-07-08
19071907-07-301907-09-09
19261926-05-121926-07-11
19281928-07-211928-07-26
19301930-07-121930-08-11
19311931-07-071931-08-09
19321932-06-101932-06-10
19331933-08-151933-08-26
19351935-07-131935-08-28
19381938-07-141938-07-22
19391939-08-081939-08-09
19411941-07-141941-07-17
19441944-07-181944-07-18
19511951-06-291951-07-12
19521952-08-041952-08-04
19551955-06-091955-06-09
19561956-07-191956-07-19
19581958-06-051958-08-25
19591959-07-181959-07-31
19601960-07-261960-08-09
19611961-07-111961-09-13
19621962-07-221962-07-28
19631963-06-151963-06-15
19651965-07-301965-07-31
19661966-08-201966-08-20
19671967-08-161967-09-16
19681968-08-011968-08-01
19691969-06-171969-06-17
19701970-06-011970-06-02
19711971-07-261971-08-10
19721972-07-171972-08-08
19741974-08-291974-09-02
19771977-08-101977-08-17
19781978-07-211978-07-22
19811981-08-071981-08-11
19821982-06-181982-06-18
19861986-08-071986-09-06
19881988-07-191988-07-25
19911991-07-231991-07-23
20002000-06-272000-06-27
20022002-06-132002-08-13
20032003-06-062003-07-30
20042004-07-232004-08-09
20062006-06-252006-07-23
20072007-07-102007-07-11
20092009-06-042009-07-30
20102010-07-082010-08-16

Every Fixed Threshold

Fixed thresholds at Coupeville 1 S
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days512019584
35 C (95 F): Days4219602
90 F (32.2 C): Days24919583
0 C (32 F): Ice days (max572019501
0 C (32 F): Frost days (min9580198536
-10 C (14 F): Days with min391519501
10 mm (0.39 in): Days with 10 mm or more rain992019846
25 mm (0.98 in): Days with 25 mm or more rain48419672
50 mm (1.97 in): Days with 50 mm or more rain3119461
10 cm (3.9 in): Days with 10 cm or more snowfall20319801
25 cm (9.8 in): Days with 25 cm or more snowfall2119571

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

  • Data for Coupeville 1 S 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).