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Built 2026-10-17 (17 October 2026)

Humptulips Salmon Hatchery Weather Records (USC00453826)

Record envelope, standing records and threshold days for Humptulips Salmon Hatchery (USC00453826), Washington, United States, with 40 years of record.

Key Facts for Humptulips Salmon Hatchery

  • Humptulips Salmon Hatchery (USC00453826) is a weather station in Washington, United States at 47.23 latitude and -123.99 longitude, 43 m (140 ft) above sea level.
  • The station reports from 1987 to 2026, 40 years of record.
  • 1,464 records set at Humptulips Salmon Hatchery still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Humptulips Salmon Hatchery tied a daily record low maximum temperature of 17.8 C (64.0 F) on 4 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Washington, United States, 47.23 latitude, -123.99 longitude.
  • Elevation: 43 m (140 ft).
  • Period of record: 1987 to 2026, 40 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

9 days at or beyond a record
Daily record high and record low at Humptulips Salmon Hatchery, with 2026 drawn through them The band shows the record high and record low for each calendar day at Humptulips Salmon Hatchery. The lines show the 2026 daily maximum and minimum. 9 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 Humptulips Salmon Hatchery. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Humptulips Salmon Hatchery, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.2 C (63.0 F)-11.7 C (10.9 F)12.8 C (55.0 F)-4.4 C (24.1 F)
Feb22.8 C (73.0 F)-15.6 C (3.9 F)17.8 C (64.0 F)-2.8 C (27.0 F)
Mar25.6 C (78.1 F)-6.1 C (21.0 F)14.4 C (57.9 F)-2.2 C (28.0 F)
Apr28.9 C (84.0 F)-3.9 C (25.0 F)23.9 C (75.0 F)-1.7 C (28.9 F)
May33.9 C (93.0 F)-2.2 C (28.0 F)30.0 C (86.0 F)0.6 C (33.1 F)
Jun35.0 C (95.0 F)0.0 C (32.0 F)31.7 C (89.1 F)2.8 C (37.0 F)
Jul36.1 C (97.0 F)3.9 C (39.0 F)30.0 C (86.0 F)6.7 C (44.1 F)
Aug35.6 C (96.1 F)3.3 C (37.9 F)27.2 C (81.0 F)7.8 C (46.0 F)
Sep38.3 C (100.9 F)-1.1 C (30.0 F)24.4 C (75.9 F)3.3 C (37.9 F)
Oct31.7 C (89.1 F)-5.0 C (23.0 F)21.1 C (70.0 F)1.1 C (34.0 F)
Nov19.4 C (66.9 F)-9.4 C (15.1 F)n/an/a
Dec22.8 C (73.0 F)-13.3 C (8.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Humptulips Salmon Hatchery by the year they were set 1,464 records at Humptulips Salmon Hatchery still stand. 1988 holds the most, with 70. 0204060801987: 401988: 701989: 611990: 611991: 491992: 681993: 681994: 311995: 531996: 541997: 431998: 381999: 402000: 242001: 222002: 382003: 382004: 302005: 512006: 342007: 282008: 552009: 302010: 272011: 72012: 312013: 352014: 342015: 92016: 202017: 362018: 282019: 332020: 202021: 262022: 292023: 352024: 252025: 232026: 201987199119951999200320072011201520192023
1,464 records at Humptulips Salmon Hatchery still stand. 1988 holds the most, with 70.
Standing records at Humptulips Salmon Hatchery by the year they were set
Year setStanding records
198740
198870
198961
199061
199149
199268
199368
199431
199553
199654
199743
199838
199940
200024
200122
200238
200338
200430
200551
200634
200728
200855
200930
201027
20117
201231
201335
201434
20159
201620
201736
201828
201933
202020
202126
202229
202335
202425
202523
202620

All-Time Record Progression

1 new records
When Humptulips Salmon Hatchery set new all-time records 1 all-time records were set at Humptulips Salmon Hatchery between 28 June 2021 and 28 June 2021. Each dot is a new record. Record high minimum temperature28 June 2021: Record high minimum temperature 18.9 C (66.0 F)
1 all-time records were set at Humptulips Salmon Hatchery between 28 June 2021 and 28 June 2021. Each dot is a new record.
When Humptulips Salmon Hatchery set new all-time records
DateKindDetail
2021-06-28Record high minimum temperatureRecord high minimum temperature 18.9 C (66.0 F)

Wettest Day of Each Month

Jan: 260.6 mm (10.3 in)
Record daily precipitation for each month at Humptulips Salmon Hatchery The wettest day on record for each calendar month at Humptulips Salmon Hatchery. The most was 260.6 mm (10.3 in) on 5 January 2015. 0100200300 Jan: 260.6 mm (10.3 in), 5 January 2015 Jan Feb: 136.7 mm (5.4 in), 10 February 1990 Feb Mar: 120.7 mm (4.8 in), 23 March 2007 Mar Apr: 90.9 mm (3.6 in), 4 April 1991 Apr May: 68.3 mm (2.7 in), 14 May 2001 May Jun: 122.2 mm (4.8 in), 11 June 2000 Jun Jul: 64.5 mm (2.5 in), 22 July 2007 Jul Aug: 107.4 mm (4.2 in), 30 August 1991 Aug Sep: 96.5 mm (3.8 in), 17 September 1997 Sep Oct: 122.2 mm (4.8 in), 20 October 2003 Oct Nov: 145.3 mm (5.7 in), 7 November 2008 Nov Dec: 139.7 mm (5.5 in), 12 December 2010 Dec
The wettest day on record for each calendar month at Humptulips Salmon Hatchery. The most was 260.6 mm (10.3 in) on 5 January 2015.
Record daily precipitation for each month at Humptulips Salmon Hatchery
MonthRecord daily precipitation (mm)Date
Jan260.6 mm (10.3 in)5 January 2015
Feb136.7 mm (5.4 in)10 February 1990
Mar120.7 mm (4.8 in)23 March 2007
Apr90.9 mm (3.6 in)4 April 1991
May68.3 mm (2.7 in)14 May 2001
Jun122.2 mm (4.8 in)11 June 2000
Jul64.5 mm (2.5 in)22 July 2007
Aug107.4 mm (4.2 in)30 August 1991
Sep96.5 mm (3.8 in)17 September 1997
Oct122.2 mm (4.8 in)20 October 2003
Nov145.3 mm (5.7 in)7 November 2008
Dec139.7 mm (5.5 in)12 December 2010

Period of Record Coverage

1987 to 2026
Days with data per year at Humptulips Salmon Hatchery 40 years of record at Humptulips Salmon Hatchery, 1987 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1987, 1998, 2008, 2009, 2010, 2011, 2014, 2015 and others. 1987: 182 of 365 days1988: 364 of 366 days1989: 364 of 365 days1990: 364 of 365 days1991: 363 of 365 days1992: 364 of 366 days1993: 365 of 365 days1994: 361 of 365 days1995: 365 of 365 days1996: 365 of 366 days1997: 365 of 365 days1998: 328 of 365 days1999: 360 of 365 days2000: 362 of 366 days2001: 361 of 365 days2002: 361 of 365 days2003: 360 of 365 days2004: 359 of 366 days2005: 354 of 365 days2006: 363 of 365 days2007: 335 of 365 days2008: 322 of 366 days2009: 239 of 365 days2010: 272 of 365 days2011: 106 of 365 days2012: 353 of 366 days2013: 353 of 365 days2014: 299 of 365 days2015: 47 of 365 days2016: 225 of 366 days2017: 360 of 365 days2018: 356 of 365 days2019: 361 of 365 days2020: 356 of 366 days2021: 355 of 365 days2022: 350 of 365 days2023: 342 of 365 days2024: 347 of 366 days2025: 354 of 365 days2026: 282 of 365 days19901995200020052010201520202025
40 years of record at Humptulips Salmon Hatchery, 1987 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1987, 1998, 2008, 2009, 2010, 2011, 2014, 2015 and others.
Days with data per year at Humptulips Salmon Hatchery
YearDays with dataShare of yearComplete
198718250%No
198836499%Yes
1989364100%Yes
1990364100%Yes
199136399%Yes
199236499%Yes
1993365100%Yes
199436199%Yes
1995365100%Yes
1996365100%Yes
1997365100%Yes
199832890%No
199936099%Yes
200036299%Yes
200136199%Yes
200236199%Yes
200336099%Yes
200435998%Yes
200535497%Yes
200636399%Yes
200733592%Yes
200832288%No
200923965%No
201027275%No
201110629%No
201235396%Yes
201335397%Yes
201429982%No
20154713%No
201622561%No
201736099%Yes
201835698%Yes
201936199%Yes
202035697%Yes
202135597%Yes
202235096%Yes
202334294%Yes
202434795%Yes
202535497%Yes
202628277%No

Latest Records

20
Latest records at Humptulips Salmon Hatchery
DateStationRecordValueBeat old record byOld record stoodSignificance
4 September 2026Humptulips Salmon Hatchery, USdaily low max (Tie, Provisional)17.8 C (64.0 F)tie32 years3 of 100 (Routine)
3 September 2026Humptulips Salmon Hatchery, USdaily low max (Tie, Provisional)16.7 C (62.1 F)tie9 years1 of 100 (Routine)
27 August 2026Humptulips Salmon Hatchery, USdaily high min (Provisional)13.9 C (57.0 F)0.6 C (1.1 F)29 years14 of 100 (Routine)
10 August 2026Humptulips Salmon Hatchery, USdaily low max15.0 C (59.0 F)1.1 C (2.0 F)16 years10 of 100 (Routine)
4 August 2026Humptulips Salmon Hatchery, USdaily low min (Tie)7.8 C (46.0 F)tie35 years3 of 100 (Routine)
28 July 2026Humptulips Salmon Hatchery, USdaily high min (Tie)13.9 C (57.0 F)tie28 years3 of 100 (Routine)
27 July 2026Humptulips Salmon Hatchery, USdaily low max15.6 C (60.1 F)0.5 C (0.9 F)25 years12 of 100 (Routine)
26 July 2026Humptulips Salmon Hatchery, USdaily low max15.6 C (60.1 F)1.6 C (2.9 F)36 years18 of 100 (Routine)
26 July 2026Humptulips Salmon Hatchery, USdaily high min (Tie)13.3 C (55.9 F)tie31 years3 of 100 (Routine)
17 July 2026Humptulips Salmon Hatchery, USdaily low max13.3 C (55.9 F)2.8 C (5.0 F)16 years15 of 100 (Routine)
3 July 2026Humptulips Salmon Hatchery, USdaily low max14.4 C (57.9 F)0.6 C (1.1 F)27 years13 of 100 (Routine)
27 June 2026Humptulips Salmon Hatchery, USdaily low max (Tie)13.9 C (57.0 F)tie1 year1 of 100 (Routine)
24 June 2026Humptulips Salmon Hatchery, USdaily high max (Tie)30.6 C (87.1 F)tie36 years3 of 100 (Routine)
16 June 2026Humptulips Salmon Hatchery, USdaily high max29.4 C (84.9 F)3.3 C (5.9 F)21 years17 of 100 (Routine)
15 June 2026Humptulips Salmon Hatchery, USdaily high max31.7 C (89.1 F)1.1 C (2.0 F)37 years17 of 100 (Routine)
14 June 2026Humptulips Salmon Hatchery, USdaily high max27.8 C (82.0 F)2.8 C (5.0 F)37 years21 of 100 (Routine)
1 June 2026Humptulips Salmon Hatchery, USdaily low min2.8 C (37.0 F)1.1 C (2.0 F)33 years18 of 100 (Routine)
5 May 2026Humptulips Salmon Hatchery, USdaily high min (Tie)11.1 C (52.0 F)tie36 years3 of 100 (Routine)
4 May 2026Humptulips Salmon Hatchery, USdaily high max30.0 C (86.0 F)0.6 C (1.1 F)33 years15 of 100 (Routine)
4 May 2026Humptulips Salmon Hatchery, USdaily high min10.0 C (50.0 F)0.6 C (1.1 F)28 years13 of 100 (Routine)

Climate Trend

29 complete years, 1988 to 2025
Annual mean temperature at Humptulips Salmon Hatchery as warming stripes, 1988 to 2025 One stripe for each of 29 complete years at Humptulips Salmon Hatchery, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 9.7 C (49.4 F); red stripes are warmer. The coolest year was 2017, at 9.2 C (48.6 F), and the warmest was 2005, at 10.9 C (51.6 F). The strongest colour marks a difference of 1.2 C (2.2 F). 1988: 9.8 C, +0.2 C from the station mean1989: 9.5 C, -0.2 C from the station mean1990: 9.8 C, +0.1 C from the station mean1991: 9.6 C, -0.1 C from the station mean1992: 10.4 C, +0.7 C from the station mean1993: 9.3 C, -0.4 C from the station mean1994: 9.5 C, -0.2 C from the station mean1995: 10.5 C, +0.8 C from the station mean1996: 9.5 C, -0.2 C from the station mean1997: 10.2 C, +0.5 C from the station mean1999: 9.4 C, -0.3 C from the station mean2000: 9.3 C, -0.4 C from the station mean2001: 9.2 C, -0.5 C from the station mean2002: 9.5 C, -0.2 C from the station mean2003: 9.9 C, +0.2 C from the station mean2004: 10.3 C, +0.6 C from the station mean2005: 10.9 C, +1.2 C from the station mean2006: 10.0 C, +0.3 C from the station mean2012: 9.4 C, -0.3 C from the station mean2013: 9.4 C, -0.2 C from the station mean2017: 9.2 C, -0.5 C from the station mean2018: 9.7 C, 0.0 C from the station mean2019: 9.4 C, -0.3 C from the station mean2020: 9.8 C, +0.1 C from the station mean2021: 9.3 C, -0.3 C from the station mean2022: 9.3 C, -0.4 C from the station mean2023: 9.8 C, +0.1 C from the station mean2024: 9.6 C, -0.1 C from the station mean2025: 9.6 C, -0.1 C from the station mean19881995200020052010201520202025
One stripe for each of 29 complete years at Humptulips Salmon Hatchery, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 9.7 C (49.4 F); red stripes are warmer. The coolest year was 2017, at 9.2 C (48.6 F), and the warmest was 2005, at 10.9 C (51.6 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Humptulips Salmon Hatchery as warming stripes, 1988 to 2025
YearAnnual mean temperatureDifference from the station mean
19889.8 C+0.15 C
19899.5 C-0.17 C
19909.8 C+0.10 C
19919.6 C-0.07 C
199210.4 C+0.68 C
19939.3 C-0.41 C
19949.5 C-0.20 C
199510.5 C+0.78 C
19969.5 C-0.22 C
199710.2 C+0.51 C
19999.4 C-0.34 C
20009.3 C-0.39 C
20019.2 C-0.46 C
20029.5 C-0.24 C
20039.9 C+0.20 C
200410.3 C+0.61 C
200510.9 C+1.18 C
200610.0 C+0.31 C
20129.4 C-0.26 C
20139.4 C-0.25 C
20179.2 C-0.48 C
20189.7 C-0.02 C
20199.4 C-0.33 C
20209.8 C+0.12 C
20219.3 C-0.35 C
20229.3 C-0.42 C
20239.8 C+0.06 C
20249.6 C-0.08 C
20259.6 C-0.13 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1987 to 2026
Yearly extremes at Humptulips Salmon Hatchery: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)198833.6 C (92.5 F)40
Coldest night (TNn)-15.6 C (3.9 F)1989-6.1 C (21.0 F)40
Wettest day (Rx1day)260.6 mm (10.3 in)2015112.3 mm (4.4 in)40
Wettest five days (Rx5day)367.0 mm (14.4 in)2006253.4 mm (10.0 in)40
Longest dry spell (CDD)55 days201724 days40

Hottest day (TXx)

Hottest day (TXx) at Humptulips Salmon Hatchery by year The hottest day of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is 38.3 C (100.9 F) in 1988, marked on the chart; the median year is 33.6 C (92.5 F). 20253035401990200020102020Record: 38.3 C (100.9 F) in 1988
The hottest day of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is 38.3 C (100.9 F) in 1988, marked on the chart; the median year is 33.6 C (92.5 F).
Hottest day (TXx) at Humptulips Salmon Hatchery by year
YearHottest day (TXx)
198736.7 C (98.1 F)
198838.3 C (100.9 F)
198932.2 C (90.0 F)
199033.9 C (93.0 F)
199135.6 C (96.1 F)
199235.6 C (96.1 F)
199335.6 C (96.1 F)
199431.1 C (88.0 F)
199534.4 C (93.9 F)
199634.4 C (93.9 F)
199732.2 C (90.0 F)
199834.4 C (93.9 F)
199931.7 C (89.1 F)
200033.3 C (91.9 F)
200131.7 C (89.1 F)
200233.3 C (91.9 F)
200333.3 C (91.9 F)
200435.6 C (96.1 F)
200533.3 C (91.9 F)
200635.6 C (96.1 F)
200735.0 C (95.0 F)
200833.9 C (93.0 F)
200931.7 C (89.1 F)
201034.4 C (93.9 F)
201127.8 C (82.0 F)
201233.9 C (93.0 F)
201328.9 C (84.0 F)
201433.3 C (91.9 F)
201522.2 C (72.0 F)
201633.9 C (93.0 F)
201733.9 C (93.0 F)
201830.6 C (87.1 F)
201932.2 C (90.0 F)
202032.8 C (91.0 F)
202135.0 C (95.0 F)
202233.3 C (91.9 F)
202335.0 C (95.0 F)
202434.4 C (93.9 F)
202532.2 C (90.0 F)
202631.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at Humptulips Salmon Hatchery by year The coldest night of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is -15.6 C (3.9 F) in 1989, marked on the chart; the median year is -6.1 C (21.0 F). -20-15-10-501990200020102020Record: -15.6 C (3.9 F) in 1989
The coldest night of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is -15.6 C (3.9 F) in 1989, marked on the chart; the median year is -6.1 C (21.0 F).
Coldest night (TNn) at Humptulips Salmon Hatchery by year
YearColdest night (TNn)
1987-6.1 C (21.0 F)
1988-6.1 C (21.0 F)
1989-15.6 C (3.9 F)
1990-13.3 C (8.1 F)
1991-7.2 C (19.0 F)
1992-5.6 C (21.9 F)
1993-11.1 C (12.0 F)
1994-7.2 C (19.0 F)
1995-6.1 C (21.0 F)
1996-8.9 C (16.0 F)
1997-6.7 C (19.9 F)
1998-11.7 C (10.9 F)
1999-3.3 C (26.1 F)
2000-5.0 C (23.0 F)
2001-3.9 C (25.0 F)
2002-5.0 C (23.0 F)
2003-5.6 C (21.9 F)
2004-8.3 C (17.1 F)
2005-6.1 C (21.0 F)
2006-9.4 C (15.1 F)
2007-11.7 C (10.9 F)
2008-5.6 C (21.9 F)
2009-10.0 C (14.0 F)
2010-6.7 C (19.9 F)
2011-5.0 C (23.0 F)
2012-3.3 C (26.1 F)
2013-9.4 C (15.1 F)
2014-8.3 C (17.1 F)
20150.0 C (32.0 F)
2016-4.4 C (24.1 F)
2017-7.8 C (18.0 F)
2018-5.0 C (23.0 F)
2019-6.1 C (21.0 F)
2020-3.3 C (26.1 F)
2021-8.3 C (17.1 F)
2022-5.0 C (23.0 F)
2023-6.1 C (21.0 F)
2024-8.3 C (17.1 F)
2025-6.7 C (19.9 F)
2026-4.4 C (24.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Humptulips Salmon Hatchery by year The wettest day of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is 260.6 mm (10.3 in) in 2015, marked on the chart; the median year is 112.3 mm (4.4 in). 501001502002503001990200020102020Record: 260.6 mm (10.3 in) in 2015
The wettest day of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is 260.6 mm (10.3 in) in 2015, marked on the chart; the median year is 112.3 mm (4.4 in).
Wettest day (Rx1day) at Humptulips Salmon Hatchery by year
YearWettest day (Rx1day)
198774.4 mm (2.9 in)
1988102.9 mm (4.1 in)
1989106.2 mm (4.2 in)
1990136.7 mm (5.4 in)
1991107.4 mm (4.2 in)
1992123.2 mm (4.9 in)
1993147.6 mm (5.8 in)
1994102.9 mm (4.1 in)
1995112.0 mm (4.4 in)
1996104.6 mm (4.1 in)
1997100.1 mm (3.9 in)
1998101.1 mm (4.0 in)
1999112.5 mm (4.4 in)
2000122.2 mm (4.8 in)
2001139.2 mm (5.5 in)
2002100.3 mm (3.9 in)
2003122.2 mm (4.8 in)
200465.0 mm (2.6 in)
2005122.7 mm (4.8 in)
2006116.3 mm (4.6 in)
2007120.7 mm (4.8 in)
2008145.3 mm (5.7 in)
2009126.0 mm (5.0 in)
2010139.7 mm (5.5 in)
2011108.7 mm (4.3 in)
2012104.1 mm (4.1 in)
2013109.2 mm (4.3 in)
201495.5 mm (3.8 in)
2015260.6 mm (10.3 in)
2016114.3 mm (4.5 in)
2017120.7 mm (4.8 in)
2018101.6 mm (4.0 in)
201994.0 mm (3.7 in)
2020111.3 mm (4.4 in)
2021129.5 mm (5.1 in)
2022156.2 mm (6.1 in)
2023107.4 mm (4.2 in)
2024129.5 mm (5.1 in)
2025113.0 mm (4.4 in)
202685.1 mm (3.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Humptulips Salmon Hatchery by year The wettest five days of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is 367.0 mm (14.4 in) in 2006, marked on the chart; the median year is 253.4 mm (10.0 in). 1002003004001990200020102020Record: 367.0 mm (14.4 in) in 2006
The wettest five days of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is 367.0 mm (14.4 in) in 2006, marked on the chart; the median year is 253.4 mm (10.0 in).
Wettest five days (Rx5day) at Humptulips Salmon Hatchery by year
YearWettest five days (Rx5day)
1987190.0 mm (7.5 in)
1988205.8 mm (8.1 in)
1989205.7 mm (8.1 in)
1990253.3 mm (10.0 in)
1991257.3 mm (10.1 in)
1992291.9 mm (11.5 in)
1993197.4 mm (7.8 in)
1994276.9 mm (10.9 in)
1995261.0 mm (10.3 in)
1996222.2 mm (8.7 in)
1997283.8 mm (11.2 in)
1998314.9 mm (12.4 in)
1999279.8 mm (11.0 in)
2000179.6 mm (7.1 in)
2001296.7 mm (11.7 in)
2002199.7 mm (7.9 in)
2003245.6 mm (9.7 in)
2004178.6 mm (7.0 in)
2005278.9 mm (11.0 in)
2006367.0 mm (14.4 in)
2007207.0 mm (8.1 in)
2008279.1 mm (11.0 in)
2009310.2 mm (12.2 in)
2010270.3 mm (10.6 in)
2011253.5 mm (10.0 in)
2012235.3 mm (9.3 in)
2013198.1 mm (7.8 in)
2014235.2 mm (9.3 in)
2015312.1 mm (12.3 in)
2016234.0 mm (9.2 in)
2017261.8 mm (10.3 in)
2018234.5 mm (9.2 in)
2019159.0 mm (6.3 in)
2020231.6 mm (9.1 in)
2021292.5 mm (11.5 in)
2022286.0 mm (11.3 in)
2023231.4 mm (9.1 in)
2024201.1 mm (7.9 in)
2025285.5 mm (11.2 in)
2026262.9 mm (10.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Humptulips Salmon Hatchery by year The longest dry spell of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is 55 days in 2017, marked on the chart; the median year is 24 days. 02040601990200020102020Record: 55 days in 2017
The longest dry spell of the year at Humptulips Salmon Hatchery, 1987 to 2026. The record is 55 days in 2017, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Humptulips Salmon Hatchery by year
YearLongest dry spell (CDD)
198721 days
198833 days
198924 days
199037 days
199132 days
199221 days
199330 days
199420 days
199519 days
199618 days
199740 days
199831 days
199917 days
200014 days
200118 days
200242 days
200336 days
200414 days
200524 days
200647 days
200715 days
200825 days
200913 days
201036 days
201121 days
201236 days
201335 days
201419 days
201523 days
201620 days
201755 days
201834 days
201920 days
202020 days
202151 days
202227 days
202328 days
202428 days
202520 days
202620 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Humptulips Salmon Hatchery falls on 2 May and the median first autumn frost on 17 October, which leaves a median of 174 days between them.

Fitted over all years, the growing season changes by +11.6 days per decade at this station.

Frost dates and growing season at Humptulips Salmon Hatchery
MeasureMedian, all yearsEarliest periodRecent period (1988 to 2025)Recent against earliestFitted trend
Last spring frost2 Mayn/a2 Mayn/a-7.9 days per decade
First autumn frost17 Octobern/a17 Octobern/a+3.7 days per decade
Growing days174 daysn/a174 daysn/a+11.6 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

37 years, 1988 to 2025

A day with at least 112.4 mm (4.4 in) of rain is expected about once in 2 years. A day with at least 221.5 mm (8.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Humptulips Salmon Hatchery: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years112.4 mm (4.4 in)
5 years133.2 mm (5.2 in)
10 years149.9 mm (5.9 in)
25 years174.8 mm (6.9 in)
50 years196.6 mm (7.7 in)Longer than the 37 years of record
100 years221.5 mm (8.7 in)Longer than the 37 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, 37 years of values from 1988 to 2025.

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: 260.6 mm (10.3 in) in 2015; 156.2 mm (6.1 in) in 2022; 147.6 mm (5.8 in) in 1993.

Download the Data

  • Data for Humptulips Salmon Hatchery standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Humptulips Salmon Hatchery 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 (2026-10-15).