Built 2026-10-19 (19 October 2026)

Sequim Threshold Days by Year (USC00457538)

11 fixed thresholds counted per year at Sequim (USC00457538): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sequim Thresholds

  • Sequim: nights with a minimum temperature at or below 0 C (32 F) in 54 years, most in 1930 with 124.
  • Sequim: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1933 with 19.
  • Sequim: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 1958 with 13.
  • Sequim: nights with a minimum temperature at or below -10 C (14 F) in 28 years, most in 1930 with 12.
  • 11 fixed thresholds have at least one qualifying day at Sequim.
34 years with a qualifying day
Days at or above 30 C (86 F) per year at Sequim Days per year at Sequim with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1958. 0510151923: 21924: 11926: 21927: 21931: 11932: 21934: 11936: 11938: 61939: 121940: 11941: 61942: 51951: 21952: 51956: 31958: 131959: 21960: 71961: 61963: 11965: 41967: 21968: 31969: 31970: 51971: 81972: 41973: 41974: 51975: 11977: 81978: 91979: 2192319311938194219581963196919731978
Days per year at Sequim with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1958.
Days at or above 30 C (86 F) per year at Sequim
YearDaysDecade average
192321.8
192411.8
192621.8
192721.8
193113.8
193223.8
193413.8
193613.8
193863.8
1939123.8
194014
194164
194254
195125
195255
195635
1958135
195925
196073.7
196163.7
196313.7
196543.7
196723.7
196833.7
196933.7
197055.1
197185.1
197245.1
197345.1
197455.1
197515.1
197785.1
197895.1
197925.1
First to last qualifying date each year at Sequim For each year, a bar from the first to the last day at Sequim meeting 30 C (86 F). 1923: 14 July 1923 to 16 August 19231924: 24 July 1924 to 24 July 19241926: 24 June 1926 to 10 July 19261927: 23 July 1927 to 16 August 19271931: 7 July 1931 to 7 July 19311932: 12 June 1932 to 4 August 19321934: 25 August 1934 to 25 August 19341936: 2 August 1936 to 2 August 19361938: 14 July 1938 to 25 July 19381939: 23 July 1939 to 23 August 19391940: 18 August 1940 to 18 August 19401941: 13 July 1941 to 16 August 19411942: 30 June 1942 to 15 August 19421951: 29 June 1951 to 12 July 19511952: 8 July 1952 to 8 August 19521956: 18 July 1956 to 20 July 19561958: 16 June 1958 to 24 August 19581959: 18 July 1959 to 31 July 19591960: 5 July 1960 to 9 August 19601961: 17 June 1961 to 12 August 19611963: 15 June 1963 to 15 June 19631965: 29 July 1965 to 1 August 19651967: 15 August 1967 to 16 August 19671968: 27 July 1968 to 31 July 19681969: 16 June 1969 to 18 June 19691970: 20 June 1970 to 12 August 19701971: 18 July 1971 to 11 August 19711972: 5 July 1972 to 8 August 19721973: 13 July 1973 to 18 July 19731974: 30 July 1974 to 30 August 19741975: 5 July 1975 to 5 July 19751977: 9 August 1977 to 18 August 19771978: 4 June 1978 to 9 August 19781979: 16 July 1979 to 17 July 19791923193219401956196319701975JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sequim meeting 30 C (86 F).
First to last qualifying date each year at Sequim
YearFirst dateLast date
19231923-07-141923-08-16
19241924-07-241924-07-24
19261926-06-241926-07-10
19271927-07-231927-08-16
19311931-07-071931-07-07
19321932-06-121932-08-04
19341934-08-251934-08-25
19361936-08-021936-08-02
19381938-07-141938-07-25
19391939-07-231939-08-23
19401940-08-181940-08-18
19411941-07-131941-08-16
19421942-06-301942-08-15
19511951-06-291951-07-12
19521952-07-081952-08-08
19561956-07-181956-07-20
19581958-06-161958-08-24
19591959-07-181959-07-31
19601960-07-051960-08-09
19611961-06-171961-08-12
19631963-06-151963-06-15
19651965-07-291965-08-01
19671967-08-151967-08-16
19681968-07-271968-07-31
19691969-06-161969-06-18
19701970-06-201970-08-12
19711971-07-181971-08-11
19721972-07-051972-08-08
19731973-07-131973-07-18
19741974-07-301974-08-30
19751975-07-051975-07-05
19771977-08-091977-08-18
19781978-06-041978-08-09
19791979-07-161979-07-17

Every Fixed Threshold

Fixed thresholds at Sequim
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days341319582
35 C (95 F): Days2319411
90 F (32.2 C): Days16519413
0 C (32 F): Ice days (max261919501
0 C (32 F): Frost days (min54124193062
-10 C (14 F): Days with min281219303
10 mm (0.39 in): Days with 10 mm or more rain511919335
25 mm (0.98 in): Days with 25 mm or more rain25319331
50 mm (1.97 in): Days with 50 mm or more rain10n/a1
10 cm (3.9 in): Days with 10 cm or more snowfall10219431
25 cm (9.8 in): Days with 25 cm or more snowfall2119431

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

  • Data for Sequim 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).