Built 2026-10-16 (16 October 2026)

Sequim Weather Records (USC00457538)

Record envelope, standing records and threshold days for Sequim (USC00457538), Washington, United States, with 65 years of record.

Key Facts for Sequim

  • Sequim (USC00457538) is a weather station in Washington, United States at 48.08 latitude and -123.10 longitude, 55 m (180 ft) above sea level.
  • The station reports from 1916 to 1980, 65 years of record.
  • 1,464 records set at Sequim still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Sequim tied a daily record high minimum temperature of 12.2 C (54.0 F) on 14 September 1980.

About the Station

  • Location: Washington, United States, 48.08 latitude, -123.10 longitude.
  • Elevation: 55 m (180 ft).
  • Period of record: 1916 to 1980, 65 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Sequim, with 2026 drawn through them The band shows the record high and record low for each calendar day at Sequim. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Sequim. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Sequim, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.1 C (61.0 F)-19.4 C (-2.9 F)n/an/a
Feb18.9 C (66.0 F)-13.9 C (7.0 F)n/an/a
Mar20.6 C (69.1 F)-9.4 C (15.1 F)n/an/a
Apr26.7 C (80.1 F)-6.7 C (19.9 F)n/an/a
May28.9 C (84.0 F)-2.8 C (27.0 F)n/an/a
Jun32.8 C (91.0 F)-1.1 C (30.0 F)n/an/a
Jul37.2 C (99.0 F)2.2 C (36.0 F)n/an/a
Aug34.4 C (93.9 F)3.3 C (37.9 F)n/an/a
Sep30.6 C (87.1 F)-2.8 C (27.0 F)n/an/a
Oct24.4 C (75.9 F)-6.1 C (21.0 F)n/an/a
Nov21.1 C (70.0 F)-12.8 C (9.0 F)n/an/a
Dec18.9 C (66.0 F)-17.2 C (1.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Sequim by the year they were set 1,464 records at Sequim still stand. 1924 holds the most, with 69. 0204060801916: 161917: 301918: 301919: 491920: 451921: 171922: 241923: 211924: 691925: 131926: 281927: 161928: 171929: 171930: 681931: 221932: 361933: 201934: 261935: 421936: 441937: 151938: 181939: 341940: 311941: 281942: 151943: 131944: 221945: 151946: 61947: 161948: 191949: 141950: 261951: 211952: 181953: 91954: 191955: 331956: 261957: 111958: 351959: 161960: 161961: 191962: 191963: 251964: 41965: 181966: 191967: 151968: 261969: 201970: 101971: 171972: 291973: 161974: 171975: 101976: 91977: 231978: 191979: 141980: 91916192319301937194419511958196519721979
1,464 records at Sequim still stand. 1924 holds the most, with 69.
Standing records at Sequim by the year they were set
Year setStanding records
191616
191730
191830
191949
192045
192117
192224
192321
192469
192513
192628
192716
192817
192917
193068
193122
193236
193320
193426
193542
193644
193715
193818
193934
194031
194128
194215
194313
194422
194515
19466
194716
194819
194914
195026
195121
195218
19539
195419
195533
195626
195711
195835
195916
196016
196119
196219
196325
19644
196518
196619
196715
196826
196920
197010
197117
197229
197316
197417
197510
19769
197723
197819
197914
19809

All-Time Record Progression

5 new records
When Sequim set new all-time records 5 all-time records were set at Sequim between 13 January 1950 and 25 January 1972. Each dot is a new record. Record low maximum temperatureRecord daily precipitationRecord high minimum temperatureRecord snow depth13 January 1950: Record low maximum temperature -8.9 C (16.0 F)3 November 1955: Record daily precipitation 76.7 mm (3.0 in)12 July 1961: Record high minimum temperature 18.9 C (66.0 F)29 December 1968: Record low maximum temperature -9.4 C (15.1 F)25 January 1972: Record snow depth 30.5 cm (12.0 in)19501955196019651970
5 all-time records were set at Sequim between 13 January 1950 and 25 January 1972. Each dot is a new record.
When Sequim set new all-time records
DateKindDetail
1950-01-13Record low maximum temperatureRecord low maximum temperature -8.9 C (16.0 F)
1955-11-03Record daily precipitationRecord daily precipitation 76.7 mm (3.0 in)
1961-07-12Record high minimum temperatureRecord high minimum temperature 18.9 C (66.0 F)
1968-12-29Record low maximum temperatureRecord low maximum temperature -9.4 C (15.1 F)
1972-01-25Record snow depthRecord snow depth 30.5 cm (12.0 in)

Wettest Day of Each Month

Nov: 76.7 mm (3.0 in)
Record daily precipitation for each month at Sequim The wettest day on record for each calendar month at Sequim. The most was 76.7 mm (3.0 in) on 3 November 1955. 020406080 Jan: 42.4 mm (1.7 in), 11 January 1955 Jan Feb: 35.3 mm (1.4 in), 24 February 1957 Feb Mar: 25.9 mm (1.0 in), 21 March 1964 Mar Apr: 32.3 mm (1.3 in), 28 April 1967 Apr May: 40.9 mm (1.6 in), 28 May 1948 May Jun: 49.5 mm (1.9 in), 14 June 1946 Jun Jul: 23.9 mm (0.9 in), 5 July 1961 Jul Aug: 23.1 mm (0.9 in), 16 August 1972 Aug Sep: 43.2 mm (1.7 in), 27 September 1940 Sep Oct: 29.5 mm (1.2 in), 3 October 1927 Oct Nov: 76.7 mm (3.0 in), 3 November 1955 Nov Dec: 58.4 mm (2.3 in), 28 December 1937 Dec
The wettest day on record for each calendar month at Sequim. The most was 76.7 mm (3.0 in) on 3 November 1955.
Record daily precipitation for each month at Sequim
MonthRecord daily precipitation (mm)Date
Jan42.4 mm (1.7 in)11 January 1955
Feb35.3 mm (1.4 in)24 February 1957
Mar25.9 mm (1.0 in)21 March 1964
Apr32.3 mm (1.3 in)28 April 1967
May40.9 mm (1.6 in)28 May 1948
Jun49.5 mm (1.9 in)14 June 1946
Jul23.9 mm (0.9 in)5 July 1961
Aug23.1 mm (0.9 in)16 August 1972
Sep43.2 mm (1.7 in)27 September 1940
Oct29.5 mm (1.2 in)3 October 1927
Nov76.7 mm (3.0 in)3 November 1955
Dec58.4 mm (2.3 in)28 December 1937

Period of Record Coverage

1916 to 1980
Days with data per year at Sequim 65 years of record at Sequim, 1916 to 1980. 14 years have data for under 90 percent of days and are left out of rankings: 1916, 1918, 1919, 1920, 1921, 1922, 1925, 1928 and others. 1916: 209 of 366 days1917: 364 of 365 days1918: 314 of 365 days1919: 275 of 365 days1920: 315 of 366 days1921: 180 of 365 days1922: 288 of 365 days1923: 351 of 365 days1924: 342 of 366 days1925: 235 of 365 days1926: 343 of 365 days1927: 353 of 365 days1928: 270 of 366 days1929: 356 of 365 days1930: 348 of 365 days1931: 345 of 365 days1932: 350 of 366 days1933: 345 of 365 days1934: 348 of 365 days1935: 314 of 365 days1936: 360 of 366 days1937: 260 of 365 days1938: 361 of 365 days1939: 334 of 365 days1940: 356 of 366 days1941: 359 of 365 days1942: 364 of 365 days1943: 364 of 365 days1944: 275 of 366 days1945: 362 of 365 days1946: 361 of 365 days1947: 360 of 365 days1948: 364 of 366 days1949: 364 of 365 days1950: 362 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 363 of 365 days1954: 349 of 365 days1955: 322 of 365 days1956: 349 of 366 days1957: 339 of 365 days1958: 364 of 365 days1959: 362 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 360 of 365 days1964: 361 of 366 days1965: 361 of 365 days1966: 364 of 365 days1967: 355 of 365 days1968: 363 of 366 days1969: 364 of 365 days1970: 365 of 365 days1971: 363 of 365 days1972: 366 of 366 days1973: 362 of 365 days1974: 357 of 365 days1975: 330 of 365 days1976: 329 of 366 days1977: 363 of 365 days1978: 361 of 365 days1979: 362 of 365 days1980: 265 of 366 days1920193019401950196019701980
65 years of record at Sequim, 1916 to 1980. 14 years have data for under 90 percent of days and are left out of rankings: 1916, 1918, 1919, 1920, 1921, 1922, 1925, 1928 and others.
Days with data per year at Sequim
YearDays with dataShare of yearComplete
191620957%No
1917364100%Yes
191831486%No
191927575%No
192031586%No
192118049%No
192228879%No
192335196%Yes
192434293%Yes
192523564%No
192634394%Yes
192735397%Yes
192827074%No
192935698%Yes
193034895%Yes
193134595%Yes
193235096%Yes
193334595%Yes
193434895%Yes
193531486%No
193636098%Yes
193726071%No
193836199%Yes
193933492%Yes
194035697%Yes
194135998%Yes
1942364100%Yes
1943364100%Yes
194427575%No
194536299%Yes
194636199%Yes
194736099%Yes
194836499%Yes
1949364100%Yes
195036299%Yes
1951365100%Yes
1952366100%Yes
195336399%Yes
195434996%Yes
195532288%No
195634995%Yes
195733993%Yes
1958364100%Yes
195936299%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
196336099%Yes
196436199%Yes
196536199%Yes
1966364100%Yes
196735597%Yes
196836399%Yes
1969364100%Yes
1970365100%Yes
197136399%Yes
1972366100%Yes
197336299%Yes
197435798%Yes
197533090%Yes
197632990%No
197736399%Yes
197836199%Yes
197936299%Yes
198026572%No

Latest Records

20
Latest records at Sequim
DateStationRecordValueBeat old record byOld record stoodSignificance
14 September 1980Sequim, USdaily high min (Tie)12.2 C (54.0 F)tie50 years5 of 100 (Routine)
1 September 1980Sequim, USdaily low max16.1 C (61.0 F)0.6 C (1.1 F)53 years22 of 100 (Routine)
16 July 1980Sequim, USdaily low min2.8 C (37.0 F)1.6 C (2.9 F)58 years29 of 100 (Routine)
15 July 1980Sequim, USdaily low min3.9 C (39.0 F)0.5 C (0.9 F)58 years25 of 100 (Routine)
4 July 1980Sequim, USdaily rain10.7 mm (0.4 in)3.6 mm (0.14 in)45 years20 of 100 (Routine)
25 June 1980Sequim, USdaily rain17.8 mm (0.7 in)7.6 mm (0.30 in)53 years20 of 100 (Routine)
17 June 1980Sequim, USdaily rain19.6 mm (0.8 in)13.2 mm (0.5 in)38 years20 of 100 (Routine)
9 June 1980Sequim, USdaily high min (Tie)12.2 C (54.0 F)tie32 years3 of 100 (Routine)
8 June 1980Sequim, USdaily rain27.9 mm (1.1 in)20.8 mm (0.8 in)16 years50 of 100 (Notable)
26 May 1980Sequim, USdaily low max (Tie)12.8 C (55.0 F)tie53 years5 of 100 (Routine)
14 April 1980Sequim, USdaily high min10.0 C (50.0 F)2.2 C (4.0 F)23 years19 of 100 (Routine)
13 April 1980Sequim, USdaily high min8.9 C (48.0 F)1.7 C (3.1 F)44 years25 of 100 (Routine)
13 March 1980Sequim, USdaily rain18.3 mm (0.7 in)9.9 mm (0.39 in)37 years20 of 100 (Routine)
3 March 1980Sequim, USdaily high min7.2 C (45.0 F)1.6 C (2.9 F)51 years26 of 100 (Routine)
28 February 1980Sequim, USdaily high min6.1 C (43.0 F)0.5 C (0.9 F)20 years13 of 100 (Routine)
27 February 1980Sequim, USdaily high min8.3 C (46.9 F)2.2 C (4.0 F)48 years27 of 100 (Routine)
26 February 1980Sequim, USdaily high min8.3 C (46.9 F)1.1 C (2.0 F)48 years23 of 100 (Routine)
24 February 1980Sequim, USdaily high max (Tie)16.1 C (61.0 F)tie48 years5 of 100 (Routine)
12 January 1980Sequim, USdaily rain21.8 mm (0.9 in)11.4 mm (0.4 in)41 years20 of 100 (Routine)
9 January 1980Sequim, USdaily snow depth (Tie)7.6 cm (3.0 in)tie49 years5 of 100 (Routine)

Climate Trend

46 complete years, 1923 to 1979
Annual mean temperature at Sequim as warming stripes, 1923 to 1979 One stripe for each of 46 complete years at Sequim, 1923 to 1979. Blue stripes are years cooler than the station's own mean of 9.7 C (49.5 F); red stripes are warmer. The coolest year was 1930, at 8.2 C (46.7 F), and the warmest was 1958, at 11.2 C (52.1 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1923: 9.0 C, -0.7 C from the station mean1926: 10.0 C, +0.3 C from the station mean1927: 8.8 C, -0.9 C from the station mean1929: 8.5 C, -1.2 C from the station mean1930: 8.2 C, -1.6 C from the station mean1931: 9.3 C, -0.4 C from the station mean1932: 8.7 C, -1.0 C from the station mean1933: 8.6 C, -1.1 C from the station mean1934: 10.2 C, +0.5 C from the station mean1936: 9.3 C, -0.4 C from the station mean1938: 10.4 C, +0.7 C from the station mean1940: 11.1 C, +1.4 C from the station mean1941: 11.0 C, +1.3 C from the station mean1942: 10.3 C, +0.6 C from the station mean1943: 9.6 C, -0.1 C from the station mean1945: 9.7 C, -0.1 C from the station mean1946: 9.4 C, -0.3 C from the station mean1947: 9.8 C, +0.1 C from the station mean1948: 8.9 C, -0.8 C from the station mean1949: 9.0 C, -0.7 C from the station mean1950: 8.5 C, -1.3 C from the station mean1951: 9.1 C, -0.6 C from the station mean1952: 9.2 C, -0.6 C from the station mean1953: 9.8 C, 0.0 C from the station mean1954: 9.0 C, -0.8 C from the station mean1956: 9.4 C, -0.3 C from the station mean1958: 11.2 C, +1.5 C from the station mean1959: 9.8 C, 0.0 C from the station mean1960: 9.9 C, +0.2 C from the station mean1961: 10.4 C, +0.7 C from the station mean1962: 10.0 C, +0.2 C from the station mean1963: 10.4 C, +0.7 C from the station mean1964: 9.4 C, -0.3 C from the station mean1965: 10.2 C, +0.4 C from the station mean1966: 10.3 C, +0.5 C from the station mean1967: 10.6 C, +0.9 C from the station mean1968: 10.1 C, +0.4 C from the station mean1969: 10.0 C, +0.3 C from the station mean1970: 9.9 C, +0.2 C from the station mean1971: 9.8 C, 0.0 C from the station mean1972: 9.7 C, 0.0 C from the station mean1973: 10.0 C, +0.3 C from the station mean1974: 10.2 C, +0.5 C from the station mean1977: 10.0 C, +0.2 C from the station mean1978: 10.2 C, +0.5 C from the station mean1979: 10.2 C, +0.4 C from the station mean19231930193519401945195019551960196519701975
One stripe for each of 46 complete years at Sequim, 1923 to 1979. Blue stripes are years cooler than the station's own mean of 9.7 C (49.5 F); red stripes are warmer. The coolest year was 1930, at 8.2 C (46.7 F), and the warmest was 1958, at 11.2 C (52.1 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Sequim as warming stripes, 1923 to 1979
YearAnnual mean temperatureDifference from the station mean
19239.0 C-0.70 C
192610.0 C+0.31 C
19278.8 C-0.89 C
19298.5 C-1.20 C
19308.2 C-1.55 C
19319.3 C-0.38 C
19328.7 C-1.01 C
19338.6 C-1.09 C
193410.2 C+0.46 C
19369.3 C-0.40 C
193810.4 C+0.72 C
194011.1 C+1.38 C
194111.0 C+1.28 C
194210.3 C+0.59 C
19439.6 C-0.08 C
19459.7 C-0.06 C
19469.4 C-0.32 C
19479.8 C+0.07 C
19488.9 C-0.79 C
19499.0 C-0.72 C
19508.5 C-1.25 C
19519.1 C-0.58 C
19529.2 C-0.55 C
19539.8 C+0.05 C
19549.0 C-0.75 C
19569.4 C-0.29 C
195811.2 C+1.47 C
19599.8 C+0.04 C
19609.9 C+0.19 C
196110.4 C+0.72 C
196210.0 C+0.24 C
196310.4 C+0.68 C
19649.4 C-0.28 C
196510.2 C+0.43 C
196610.3 C+0.53 C
196710.6 C+0.90 C
196810.1 C+0.37 C
196910.0 C+0.26 C
19709.9 C+0.18 C
19719.8 C+0.04 C
19729.7 C+0.01 C
197310.0 C+0.31 C
197410.2 C+0.50 C
197710.0 C+0.25 C
197810.2 C+0.52 C
197910.2 C+0.45 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1923 to 1979. In Fahrenheit: 0.3 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Sequim
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.3 F (0.1 to 0.6) per decade1923 to 197946Rise
Mean daily maximum0.00 C (-0.14 to 0.14) per decade0.00 F (-0.25 to 0.25) per decade1923 to 197946Not clearly different from zero
Mean daily minimum0.4 C (0.3 to 0.5) per decade0.7 F (0.5 to 0.9) per decade1923 to 197946Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1916 to 1980
Yearly extremes at Sequim: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)194130.6 C (87.1 F)65
Coldest night (TNn)-19.4 C (-2.9 F)1935-10.0 C (14.0 F)65
Wettest day (Rx1day)76.7 mm (3.0 in)195524.9 mm (1.0 in)65
Wettest five days (Rx5day)146.2 mm (5.8 in)193745.0 mm (1.8 in)65
Longest dry spell (CDD)89 days194234 days65

Hottest day (TXx)

Hottest day (TXx) at Sequim by year The hottest day of the year at Sequim, 1916 to 1980. The record is 37.2 C (99.0 F) in 1941, marked on the chart; the median year is 30.6 C (87.1 F). 253035401920194019601980Record: 37.2 C (99.0 F) in 1941
The hottest day of the year at Sequim, 1916 to 1980. The record is 37.2 C (99.0 F) in 1941, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Sequim by year
YearHottest day (TXx)
191628.9 C (84.0 F)
191729.4 C (84.9 F)
191831.7 C (89.1 F)
191928.9 C (84.0 F)
192031.1 C (88.0 F)
192126.7 C (80.1 F)
192230.6 C (87.1 F)
192330.6 C (87.1 F)
192430.6 C (87.1 F)
192532.8 C (91.0 F)
192631.1 C (88.0 F)
192730.6 C (87.1 F)
192828.3 C (82.9 F)
192929.4 C (84.9 F)
193028.9 C (84.0 F)
193130.6 C (87.1 F)
193230.0 C (86.0 F)
193329.4 C (84.9 F)
193430.0 C (86.0 F)
193532.2 C (90.0 F)
193631.1 C (88.0 F)
193727.8 C (82.0 F)
193833.9 C (93.0 F)
193934.4 C (93.9 F)
194030.6 C (87.1 F)
194137.2 C (99.0 F)
194232.8 C (91.0 F)
194328.3 C (82.9 F)
194430.0 C (86.0 F)
194528.9 C (84.0 F)
194628.9 C (84.0 F)
194728.9 C (84.0 F)
194829.4 C (84.9 F)
194929.4 C (84.9 F)
195028.9 C (84.0 F)
195132.2 C (90.0 F)
195232.2 C (90.0 F)
195329.4 C (84.9 F)
195425.6 C (78.1 F)
195530.6 C (87.1 F)
195632.2 C (90.0 F)
195727.8 C (82.0 F)
195833.9 C (93.0 F)
195931.1 C (88.0 F)
196032.2 C (90.0 F)
196134.4 C (93.9 F)
196229.4 C (84.9 F)
196330.0 C (86.0 F)
196428.3 C (82.9 F)
196535.0 C (95.0 F)
196628.9 C (84.0 F)
196731.1 C (88.0 F)
196830.6 C (87.1 F)
196932.8 C (91.0 F)
197031.7 C (89.1 F)
197133.9 C (93.0 F)
197232.8 C (91.0 F)
197331.7 C (89.1 F)
197430.6 C (87.1 F)
197530.6 C (87.1 F)
197627.2 C (81.0 F)
197733.3 C (91.9 F)
197832.2 C (90.0 F)
197931.7 C (89.1 F)
198029.4 C (84.9 F)

Coldest night (TNn)

Coldest night (TNn) at Sequim by year The coldest night of the year at Sequim, 1916 to 1980. The record is -19.4 C (-2.9 F) in 1935, marked on the chart; the median year is -10.0 C (14.0 F). -20-15-10-501920194019601980Record: -19.4 C (-2.9 F) in 1935
The coldest night of the year at Sequim, 1916 to 1980. The record is -19.4 C (-2.9 F) in 1935, marked on the chart; the median year is -10.0 C (14.0 F).
Coldest night (TNn) at Sequim by year
YearColdest night (TNn)
1916-5.6 C (21.9 F)
1917-13.9 C (7.0 F)
1918-7.8 C (18.0 F)
1919-16.1 C (3.0 F)
1920-6.7 C (19.9 F)
1921-7.8 C (18.0 F)
1922-13.9 C (7.0 F)
1923-11.1 C (12.0 F)
1924-17.2 C (1.0 F)
1925-5.6 C (21.9 F)
1926-10.0 C (14.0 F)
1927-12.2 C (10.0 F)
1928-10.0 C (14.0 F)
1929-13.3 C (8.1 F)
1930-15.0 C (5.0 F)
1931-5.6 C (21.9 F)
1932-12.2 C (10.0 F)
1933-13.9 C (7.0 F)
1934-4.4 C (24.1 F)
1935-19.4 C (-2.9 F)
1936-10.6 C (12.9 F)
1937-13.9 C (7.0 F)
1938-3.9 C (25.0 F)
1939-6.1 C (21.0 F)
1940-5.6 C (21.9 F)
1941-6.1 C (21.0 F)
1942-7.8 C (18.0 F)
1943-15.0 C (5.0 F)
1944-6.7 C (19.9 F)
1945-6.1 C (21.0 F)
1946-5.0 C (23.0 F)
1947-12.2 C (10.0 F)
1948-7.8 C (18.0 F)
1949-11.1 C (12.0 F)
1950-15.6 C (3.9 F)
1951-11.1 C (12.0 F)
1952-10.0 C (14.0 F)
1953-2.8 C (27.0 F)
1954-8.3 C (17.1 F)
1955-12.8 C (9.0 F)
1956-10.6 C (12.9 F)
1957-11.7 C (10.9 F)
1958-3.9 C (25.0 F)
1959-11.1 C (12.0 F)
1960-6.7 C (19.9 F)
1961-5.0 C (23.0 F)
1962-6.7 C (19.9 F)
1963-10.6 C (12.9 F)
1964-13.3 C (8.1 F)
1965-4.4 C (24.1 F)
1966-3.9 C (25.0 F)
1967-4.4 C (24.1 F)
1968-15.0 C (5.0 F)
1969-12.2 C (10.0 F)
1970-6.7 C (19.9 F)
1971-7.2 C (19.0 F)
1972-12.8 C (9.0 F)
1973-12.2 C (10.0 F)
1974-7.2 C (19.0 F)
1975-5.0 C (23.0 F)
1976-4.4 C (24.1 F)
1977-8.3 C (17.1 F)
1978-12.8 C (9.0 F)
1979-12.8 C (9.0 F)
1980-11.7 C (10.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Sequim by year The wettest day of the year at Sequim, 1916 to 1980. The record is 76.7 mm (3.0 in) in 1955, marked on the chart; the median year is 24.9 mm (1.0 in). 0204060801920194019601980Record: 76.7 mm (3.0 in) in 1955
The wettest day of the year at Sequim, 1916 to 1980. The record is 76.7 mm (3.0 in) in 1955, marked on the chart; the median year is 24.9 mm (1.0 in).
Wettest day (Rx1day) at Sequim by year
YearWettest day (Rx1day)
191632.0 mm (1.3 in)
191721.1 mm (0.8 in)
191818.5 mm (0.7 in)
191925.4 mm (1.0 in)
192022.1 mm (0.9 in)
192138.6 mm (1.5 in)
192233.0 mm (1.3 in)
192318.3 mm (0.7 in)
192427.2 mm (1.1 in)
192511.9 mm (0.5 in)
192620.6 mm (0.8 in)
192729.5 mm (1.2 in)
192812.4 mm (0.5 in)
192916.8 mm (0.7 in)
193019.3 mm (0.8 in)
193127.2 mm (1.1 in)
193225.4 mm (1.0 in)
193339.9 mm (1.6 in)
193429.2 mm (1.1 in)
193530.2 mm (1.2 in)
193639.1 mm (1.5 in)
193758.4 mm (2.3 in)
193817.8 mm (0.7 in)
193931.5 mm (1.2 in)
194043.2 mm (1.7 in)
194119.6 mm (0.8 in)
194225.1 mm (1.0 in)
194321.8 mm (0.9 in)
194415.2 mm (0.6 in)
194525.4 mm (1.0 in)
194649.5 mm (1.9 in)
194727.9 mm (1.1 in)
194840.9 mm (1.6 in)
194926.4 mm (1.0 in)
195017.0 mm (0.7 in)
195128.4 mm (1.1 in)
195216.0 mm (0.6 in)
195318.5 mm (0.7 in)
195419.3 mm (0.8 in)
195576.7 mm (3.0 in)
195627.9 mm (1.1 in)
195735.3 mm (1.4 in)
195820.6 mm (0.8 in)
195921.6 mm (0.9 in)
196029.2 mm (1.1 in)
196123.9 mm (0.9 in)
196224.9 mm (1.0 in)
196324.9 mm (1.0 in)
196425.9 mm (1.0 in)
196517.5 mm (0.7 in)
196625.1 mm (1.0 in)
196732.3 mm (1.3 in)
196818.5 mm (0.7 in)
196917.5 mm (0.7 in)
197020.6 mm (0.8 in)
197120.1 mm (0.8 in)
197223.1 mm (0.9 in)
197315.7 mm (0.6 in)
197445.7 mm (1.8 in)
197522.9 mm (0.9 in)
197618.5 mm (0.7 in)
197723.1 mm (0.9 in)
197836.1 mm (1.4 in)
197920.3 mm (0.8 in)
198027.9 mm (1.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Sequim by year The wettest five days of the year at Sequim, 1916 to 1980. The record is 146.2 mm (5.8 in) in 1937, marked on the chart; the median year is 45.0 mm (1.8 in). 0501001501920194019601980Record: 146.2 mm (5.8 in) in 1937
The wettest five days of the year at Sequim, 1916 to 1980. The record is 146.2 mm (5.8 in) in 1937, marked on the chart; the median year is 45.0 mm (1.8 in).
Wettest five days (Rx5day) at Sequim by year
YearWettest five days (Rx5day)
191641.1 mm (1.6 in)
191753.1 mm (2.1 in)
191844.9 mm (1.8 in)
191967.8 mm (2.7 in)
192040.4 mm (1.6 in)
192153.5 mm (2.1 in)
192248.3 mm (1.9 in)
192337.0 mm (1.5 in)
192452.4 mm (2.1 in)
192521.5 mm (0.8 in)
192635.4 mm (1.4 in)
192735.2 mm (1.4 in)
192835.5 mm (1.4 in)
192931.5 mm (1.2 in)
193025.1 mm (1.0 in)
193142.7 mm (1.7 in)
193238.1 mm (1.5 in)
1933102.7 mm (4.0 in)
193455.4 mm (2.2 in)
193547.7 mm (1.9 in)
193660.8 mm (2.4 in)
1937146.2 mm (5.8 in)
1938112.7 mm (4.4 in)
193955.9 mm (2.2 in)
194045.0 mm (1.8 in)
194136.9 mm (1.5 in)
194245.5 mm (1.8 in)
194334.2 mm (1.3 in)
194425.3 mm (1.0 in)
194554.6 mm (2.1 in)
194653.6 mm (2.1 in)
194753.8 mm (2.1 in)
194876.2 mm (3.0 in)
194949.8 mm (2.0 in)
195034.6 mm (1.4 in)
195145.7 mm (1.8 in)
195236.5 mm (1.4 in)
195350.3 mm (2.0 in)
195456.9 mm (2.2 in)
195588.5 mm (3.5 in)
195653.0 mm (2.1 in)
195758.7 mm (2.3 in)
195838.7 mm (1.5 in)
195952.8 mm (2.1 in)
196036.8 mm (1.4 in)
196127.9 mm (1.1 in)
196249.2 mm (1.9 in)
196341.4 mm (1.6 in)
196434.5 mm (1.4 in)
196545.2 mm (1.8 in)
196641.2 mm (1.6 in)
196750.3 mm (2.0 in)
196832.1 mm (1.3 in)
196929.2 mm (1.1 in)
197028.8 mm (1.1 in)
197157.1 mm (2.2 in)
197239.9 mm (1.6 in)
197330.5 mm (1.2 in)
197458.5 mm (2.3 in)
197544.1 mm (1.7 in)
197637.7 mm (1.5 in)
197739.1 mm (1.5 in)
197847.3 mm (1.9 in)
197954.1 mm (2.1 in)
198037.3 mm (1.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Sequim by year The longest dry spell of the year at Sequim, 1916 to 1980. The record is 89 days in 1942, marked on the chart; the median year is 34 days. 0204060801001920194019601980Record: 89 days in 1942
The longest dry spell of the year at Sequim, 1916 to 1980. The record is 89 days in 1942, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Sequim by year
YearLongest dry spell (CDD)
191647 days
191764 days
191837 days
191933 days
192037 days
192136 days
192241 days
192342 days
192439 days
192523 days
192651 days
192737 days
192812 days
192924 days
193062 days
193115 days
193223 days
193313 days
193428 days
193537 days
193643 days
193738 days
193838 days
193940 days
194039 days
194124 days
194289 days
194329 days
194425 days
194538 days
194628 days
194732 days
194817 days
194919 days
195031 days
195139 days
195237 days
195335 days
195427 days
195534 days
195641 days
195725 days
195860 days
195955 days
196055 days
196139 days
196228 days
196326 days
196416 days
196524 days
196633 days
196747 days
196824 days
196930 days
197028 days
197130 days
197231 days
197342 days
197459 days
197532 days
197632 days
197740 days
197826 days
197930 days
198049 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

46 years with a frost

Across 46 years with a frost, the median last spring frost at Sequim falls on 21 April and the median first autumn frost on 30 October, which leaves a median of 194 days between them.

Fitted over all years, the growing season changes by +6.4 days per decade at this station.

Frost dates and growing season at Sequim
MeasureMedian, all yearsEarliest periodRecent period (1946 to 1979)Recent against earliestFitted trend
Last spring frost21 Apriln/a20 Apriln/a-2.2 days per decade
First autumn frost30 Octobern/a3 Novembern/a+4.2 days per decade
Growing days194 daysn/a196 daysn/a+6.4 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

51 years, 1917 to 1979

A day with at least 24.1 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 70.5 mm (2.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Sequim: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years24.1 mm (0.9 in)
5 years32.1 mm (1.3 in)
10 years38.8 mm (1.5 in)
25 years49.4 mm (1.9 in)
50 years59.0 mm (2.3 in)
100 years70.5 mm (2.8 in)Longer than the 51 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 51 years of values from 1917 to 1979.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 76.7 mm (3.0 in) in 1955; 49.5 mm (1.9 in) in 1946; 45.7 mm (1.8 in) in 1974.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Sequim, at 1936. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1936 ran 0.4 C (0.7 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Sequim, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1936+0.4+0.7possible5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

  • Data for Sequim standing records by year: CSV or JSON. Field meanings are on the data page.
  • 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).