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Carson Fish Hatchery Weather Records (USC00451160)

Record envelope, standing records and threshold days for Carson Fish Hatchery (USC00451160), Washington, United States, with 50 years of record.

Key Facts for Carson Fish Hatchery

  • Carson Fish Hatchery (USC00451160) is a weather station in Washington, United States at 45.87 latitude and -121.97 longitude, 346 m (1,134 ft) above sea level.
  • The station reports from 1977 to 2026, 50 years of record.
  • 1,464 records set at Carson Fish Hatchery still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Carson Fish Hatchery set a daily record high minimum temperature of 15.6 C (60.1 F) on 22 August 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, 45.87 latitude, -121.97 longitude.
  • Elevation: 346 m (1,134 ft).
  • Period of record: 1977 to 2026, 50 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

9 days at or beyond a record
Daily record high and record low at Carson Fish Hatchery, with 2026 drawn through them The band shows the record high and record low for each calendar day at Carson Fish Hatchery. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Carson Fish 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 Carson Fish Hatchery, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan14.4 C (57.9 F)-16.7 C (1.9 F)10.6 C (51.1 F)-7.8 C (18.0 F)
Feb17.8 C (64.0 F)-17.2 C (1.0 F)12.8 C (55.0 F)-2.2 C (28.0 F)
Mar25.0 C (77.0 F)-12.8 C (9.0 F)21.7 C (71.1 F)-2.8 C (27.0 F)
Apr31.7 C (89.1 F)-4.4 C (24.1 F)25.6 C (78.1 F)-1.1 C (30.0 F)
May37.2 C (99.0 F)-2.8 C (27.0 F)30.0 C (86.0 F)1.7 C (35.1 F)
Jun42.8 C (109.0 F)-1.7 C (28.9 F)35.0 C (95.0 F)3.9 C (39.0 F)
Jul41.1 C (106.0 F)1.1 C (34.0 F)38.9 C (102.0 F)7.2 C (45.0 F)
Aug40.0 C (104.0 F)-1.1 C (30.0 F)35.0 C (95.0 F)4.4 C (39.9 F)
Sep37.8 C (100.0 F)-3.3 C (26.1 F)28.3 C (82.9 F)6.7 C (44.1 F)
Oct28.9 C (84.0 F)-9.4 C (15.1 F)25.6 C (78.1 F)5.6 C (42.1 F)
Nov18.3 C (64.9 F)-18.9 C (-2.0 F)n/an/a
Dec15.0 C (59.0 F)-16.7 C (1.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Carson Fish Hatchery by the year they were set 1,464 records at Carson Fish Hatchery still stand. 1985 holds the most, with 72. 0204060801977: 141978: 521979: 311980: 481981: 351982: 251983: 371984: 441985: 721986: 431987: 391988: 231989: 211990: 291991: 291992: 541993: 371994: 321995: 321996: 381997: 171998: 241999: 272000: 192001: 162002: 282003: 422004: 152005: 152006: 202007: 172008: 432009: 242010: 182011: 242012: 272013: 262014: 292015: 392016: 262017: 212018: 262019: 262020: 102021: 242022: 272023: 262024: 182025: 382026: 171977198219871992199720022007201220172022
1,464 records at Carson Fish Hatchery still stand. 1985 holds the most, with 72.
Standing records at Carson Fish Hatchery by the year they were set
Year setStanding records
197714
197852
197931
198048
198135
198225
198337
198444
198572
198643
198739
198823
198921
199029
199129
199254
199337
199432
199532
199638
199717
199824
199927
200019
200116
200228
200342
200415
200515
200620
200717
200843
200924
201018
201124
201227
201326
201429
201539
201626
201721
201826
201926
202010
202124
202227
202326
202418
202538
202617

All-Time Record Progression

7 new records
When Carson Fish Hatchery set new all-time records 7 all-time records were set at Carson Fish Hatchery between 1 February 2008 and 26 August 2025. Each dot is a new record. Record snow depthRecord high minimum temperatureRecord high maximum temperatureRecord daily snowfall1 February 2008: Record snow depth 157.5 cm (62.0 in)2 February 2008: Record snow depth 162.6 cm (64.0 in)18 August 2008: Record high minimum temperature 17.8 C (64.0 F)29 June 2021: Record high maximum temperature 42.8 C (109.0 F)1 August 2021: Record high minimum temperature 18.3 C (64.9 F)3 January 2022: Record daily snowfall 91.4 cm (36.0 in)26 August 2025: Record high minimum temperature 18.9 C (66.0 F)2010201520202025
7 all-time records were set at Carson Fish Hatchery between 1 February 2008 and 26 August 2025. Each dot is a new record.
When Carson Fish Hatchery set new all-time records
DateKindDetail
2008-02-01Record snow depthRecord snow depth 157.5 cm (62.0 in)
2008-02-02Record snow depthRecord snow depth 162.6 cm (64.0 in)
2008-08-18Record high minimum temperatureRecord high minimum temperature 17.8 C (64.0 F)
2021-06-29Record high maximum temperatureRecord high maximum temperature 42.8 C (109.0 F)
2021-08-01Record high minimum temperatureRecord high minimum temperature 18.3 C (64.9 F)
2022-01-03Record daily snowfallRecord daily snowfall 91.4 cm (36.0 in)
2025-08-26Record high minimum temperatureRecord high minimum temperature 18.9 C (66.0 F)

Wettest Day of Each Month

Nov: 190.8 mm (7.5 in)
Record daily precipitation for each month at Carson Fish Hatchery The wettest day on record for each calendar month at Carson Fish Hatchery. The most was 190.8 mm (7.5 in) on 7 November 2006. 050100150200 Jan: 167.9 mm (6.6 in), 22 January 2024 Jan Feb: 124.2 mm (4.9 in), 7 February 1996 Feb Mar: 107.7 mm (4.2 in), 27 March 2005 Mar Apr: 75.4 mm (3.0 in), 23 April 1996 Apr May: 49.0 mm (1.9 in), 14 May 1978 May Jun: 78.2 mm (3.1 in), 7 June 1985 Jun Jul: 32.3 mm (1.3 in), 1 July 1979 Jul Aug: 52.6 mm (2.1 in), 25 August 2004 Aug Sep: 69.3 mm (2.7 in), 27 September 1995 Sep Oct: 123.7 mm (4.9 in), 27 October 1994 Oct Nov: 190.8 mm (7.5 in), 7 November 2006 Nov Dec: 158.8 mm (6.3 in), 2 December 2007 Dec
The wettest day on record for each calendar month at Carson Fish Hatchery. The most was 190.8 mm (7.5 in) on 7 November 2006.
Record daily precipitation for each month at Carson Fish Hatchery
MonthRecord daily precipitation (mm)Date
Jan167.9 mm (6.6 in)22 January 2024
Feb124.2 mm (4.9 in)7 February 1996
Mar107.7 mm (4.2 in)27 March 2005
Apr75.4 mm (3.0 in)23 April 1996
May49.0 mm (1.9 in)14 May 1978
Jun78.2 mm (3.1 in)7 June 1985
Jul32.3 mm (1.3 in)1 July 1979
Aug52.6 mm (2.1 in)25 August 2004
Sep69.3 mm (2.7 in)27 September 1995
Oct123.7 mm (4.9 in)27 October 1994
Nov190.8 mm (7.5 in)7 November 2006
Dec158.8 mm (6.3 in)2 December 2007

Period of Record Coverage

1977 to 2026
Days with data per year at Carson Fish Hatchery 50 years of record at Carson Fish Hatchery, 1977 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1977, 2006, 2012, 2013, 2014, 2016, 2017, 2020 and others. 1977: 122 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 362 of 366 days1981: 360 of 365 days1982: 334 of 365 days1983: 335 of 365 days1984: 366 of 366 days1985: 364 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 336 of 366 days1989: 364 of 365 days1990: 364 of 365 days1991: 365 of 365 days1992: 365 of 366 days1993: 365 of 365 days1994: 364 of 365 days1995: 364 of 365 days1996: 365 of 366 days1997: 364 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 364 of 366 days2001: 365 of 365 days2002: 364 of 365 days2003: 364 of 365 days2004: 363 of 366 days2005: 332 of 365 days2006: 318 of 365 days2007: 364 of 365 days2008: 366 of 366 days2009: 337 of 365 days2010: 359 of 365 days2011: 342 of 365 days2012: 322 of 366 days2013: 326 of 365 days2014: 286 of 365 days2015: 338 of 365 days2016: 322 of 366 days2017: 312 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 292 of 366 days2021: 337 of 365 days2022: 364 of 365 days2023: 365 of 365 days2024: 349 of 366 days2025: 360 of 365 days2026: 247 of 365 days19801990200020102020
50 years of record at Carson Fish Hatchery, 1977 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1977, 2006, 2012, 2013, 2014, 2016, 2017, 2020 and others.
Days with data per year at Carson Fish Hatchery
YearDays with dataShare of yearComplete
197712233%No
1978365100%Yes
1979365100%Yes
198036299%Yes
198136099%Yes
198233492%Yes
198333592%Yes
1984366100%Yes
1985364100%Yes
1986365100%Yes
1987365100%Yes
198833692%Yes
1989364100%Yes
1990364100%Yes
1991365100%Yes
1992365100%Yes
1993365100%Yes
1994364100%Yes
1995364100%Yes
1996365100%Yes
1997364100%Yes
1998365100%Yes
1999365100%Yes
200036499%Yes
2001365100%Yes
2002364100%Yes
2003364100%Yes
200436399%Yes
200533291%Yes
200631887%No
2007364100%Yes
2008366100%Yes
200933792%Yes
201035998%Yes
201134294%Yes
201232288%No
201332689%No
201428678%No
201533893%Yes
201632288%No
201731285%No
2018365100%Yes
2019365100%Yes
202029280%No
202133792%Yes
2022364100%Yes
2023365100%Yes
202434995%Yes
202536099%Yes
202624768%No

Latest Records

20
Latest records at Carson Fish Hatchery
DateStationRecordValueBeat old record byOld record stoodSignificance
22 August 2026Carson Fish Hatchery, USdaily high min (Provisional)15.6 C (60.1 F)2.3 C (4.1 F)21 years19 of 100 (Routine)
6 August 2026Carson Fish Hatchery, USdaily high max (Tie)35.0 C (95.0 F)tie32 years3 of 100 (Routine)
1 August 2026Carson Fish Hatchery, USdaily low max (Tie)20.6 C (69.1 F)tie28 years3 of 100 (Routine)
22 July 2026Carson Fish Hatchery, USall-time high min (Tie)18.9 C (66.0 F)tie0 years6 of 100 (Routine)
22 July 2026Carson Fish Hatchery, USdaily high max (Tie)38.9 C (102.0 F)tie32 years3 of 100 (Routine)
21 July 2026Carson Fish Hatchery, USmonthly high min (Tie)17.2 C (63.0 F)tie16 years5 of 100 (Routine)
15 July 2026Carson Fish Hatchery, USdaily high min (Tie)15.0 C (59.0 F)tie19 years2 of 100 (Routine)
19 June 2026Carson Fish Hatchery, USdaily high min (Tie)11.7 C (53.1 F)tie8 years1 of 100 (Routine)
15 June 2026Carson Fish Hatchery, USdaily high max35.0 C (95.0 F)1.7 C (3.1 F)27 years15 of 100 (Routine)
9 June 2026Carson Fish Hatchery, USdaily rain37.1 mm (1.5 in)7.6 mm (0.30 in)44 years26 of 100 (Routine)
21 May 2026Carson Fish Hatchery, USdaily high max (Tie)27.2 C (81.0 F)tie48 years4 of 100 (Routine)
16 May 2026Carson Fish Hatchery, USdaily low max (Tie)10.0 C (50.0 F)tie27 years3 of 100 (Routine)
15 May 2026Carson Fish Hatchery, USdaily low max10.0 C (50.0 F)0.6 C (1.1 F)24 years12 of 100 (Routine)
5 May 2026Carson Fish Hatchery, USdaily high min12.2 C (54.0 F)0.5 C (0.9 F)28 years14 of 100 (Routine)
3 May 2026Carson Fish Hatchery, USdaily high max30.0 C (86.0 F)1.1 C (2.0 F)9 years8 of 100 (Routine)
1 May 2026Carson Fish Hatchery, USdaily high min10.6 C (51.1 F)2.8 C (5.0 F)28 years22 of 100 (Routine)
21 April 2026Carson Fish Hatchery, USdaily high min (Tie)6.7 C (44.1 F)tie43 years4 of 100 (Routine)
20 April 2026Carson Fish Hatchery, USdaily high min8.9 C (48.0 F)0.6 C (1.1 F)36 years18 of 100 (Routine)
10 April 2026Carson Fish Hatchery, USdaily high min7.2 C (45.0 F)1.1 C (2.0 F)29 years17 of 100 (Routine)
6 April 2026Carson Fish Hatchery, USdaily high max25.6 C (78.1 F)2.3 C (4.1 F)36 years19 of 100 (Routine)

Climate Trend

33 complete years, 1978 to 2025
Annual mean temperature at Carson Fish Hatchery as warming stripes, 1978 to 2025 One stripe for each of 33 complete years at Carson Fish Hatchery, 1978 to 2025. Blue stripes are years cooler than the station's own mean of 8.8 C (47.9 F); red stripes are warmer. The coolest year was 1985, at 7.0 C (44.5 F), and the warmest was 2025, at 10.3 C (50.6 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1978: 8.6 C, -0.2 C from the station mean1979: 8.4 C, -0.4 C from the station mean1980: 8.0 C, -0.8 C from the station mean1981: 9.1 C, +0.2 C from the station mean1984: 7.7 C, -1.1 C from the station mean1985: 7.0 C, -1.9 C from the station mean1986: 8.9 C, +0.1 C from the station mean1987: 9.6 C, +0.7 C from the station mean1989: 8.6 C, -0.2 C from the station mean1990: 9.1 C, +0.3 C from the station mean1991: 9.0 C, +0.2 C from the station mean1992: 10.1 C, +1.3 C from the station mean1993: 7.8 C, -1.0 C from the station mean1994: 9.1 C, +0.3 C from the station mean1995: 9.3 C, +0.4 C from the station mean1996: 8.4 C, -0.4 C from the station mean1997: 8.8 C, 0.0 C from the station mean1998: 9.6 C, +0.8 C from the station mean1999: 8.9 C, 0.0 C from the station mean2000: 8.3 C, -0.5 C from the station mean2001: 8.8 C, -0.1 C from the station mean2002: 8.6 C, -0.2 C from the station mean2003: 9.7 C, +0.9 C from the station mean2004: 9.6 C, +0.8 C from the station mean2007: 8.7 C, -0.2 C from the station mean2008: 8.1 C, -0.7 C from the station mean2010: 8.7 C, -0.1 C from the station mean2011: 7.7 C, -1.2 C from the station mean2018: 9.6 C, +0.8 C from the station mean2019: 8.7 C, -0.2 C from the station mean2022: 9.0 C, +0.1 C from the station mean2023: 9.3 C, +0.5 C from the station mean2025: 10.3 C, +1.5 C from the station mean1978198519901995200020052010201520202025
One stripe for each of 33 complete years at Carson Fish Hatchery, 1978 to 2025. Blue stripes are years cooler than the station's own mean of 8.8 C (47.9 F); red stripes are warmer. The coolest year was 1985, at 7.0 C (44.5 F), and the warmest was 2025, at 10.3 C (50.6 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Carson Fish Hatchery as warming stripes, 1978 to 2025
YearAnnual mean temperatureDifference from the station mean
19788.6 C-0.24 C
19798.4 C-0.37 C
19808.0 C-0.79 C
19819.1 C+0.24 C
19847.7 C-1.08 C
19857.0 C-1.85 C
19868.9 C+0.10 C
19879.6 C+0.74 C
19898.6 C-0.20 C
19909.1 C+0.32 C
19919.0 C+0.20 C
199210.1 C+1.26 C
19937.8 C-0.99 C
19949.1 C+0.27 C
19959.3 C+0.44 C
19968.4 C-0.41 C
19978.8 C0.00 C
19989.6 C+0.78 C
19998.9 C+0.05 C
20008.3 C-0.52 C
20018.8 C-0.06 C
20028.6 C-0.18 C
20039.7 C+0.87 C
20049.6 C+0.77 C
20078.7 C-0.16 C
20088.1 C-0.67 C
20108.7 C-0.11 C
20117.7 C-1.16 C
20189.6 C+0.82 C
20198.7 C-0.16 C
20229.0 C+0.15 C
20239.3 C+0.49 C
202510.3 C+1.53 C

The fitted trend in annual mean temperature here over 1978 to 2025 is 0.17 C (-0.01 to 0.36) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.31 F (-0.03 to 0.65) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Carson Fish Hatchery
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.17 C (-0.01 to 0.36) per decade0.31 F (-0.03 to 0.65) per decade1978 to 202533Not clearly different from zero
Mean daily maximum0.04 C (-0.18 to 0.25) per decade0.1 F (-0.3 to 0.5) per decade1978 to 202533Not clearly different from zero
Mean daily minimum0.3 C (0.1 to 0.5) per decade0.6 F (0.2 to 0.9) per decade1978 to 202533Rise

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

1977 to 2026
Yearly extremes at Carson Fish Hatchery: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.8 C (109.0 F)202137.5 C (99.5 F)50
Coldest night (TNn)-18.9 C (-2.0 F)1985-12.2 C (10.0 F)50
Wettest day (Rx1day)190.8 mm (7.5 in)200688.0 mm (3.5 in)50
Wettest five days (Rx5day)518.7 mm (20.4 in)2006196.0 mm (7.7 in)50
Longest dry spell (CDD)92 days202134 days50

Hottest day (TXx)

Hottest day (TXx) at Carson Fish Hatchery by year The hottest day of the year at Carson Fish Hatchery, 1977 to 2026. The record is 42.8 C (109.0 F) in 2021, marked on the chart; the median year is 37.5 C (99.5 F). 253035404519801990200020102020Record: 42.8 C (109.0 F) in 2021
The hottest day of the year at Carson Fish Hatchery, 1977 to 2026. The record is 42.8 C (109.0 F) in 2021, marked on the chart; the median year is 37.5 C (99.5 F).
Hottest day (TXx) at Carson Fish Hatchery by year
YearHottest day (TXx)
197728.3 C (82.9 F)
197839.4 C (102.9 F)
197937.8 C (100.0 F)
198036.7 C (98.1 F)
198139.4 C (102.9 F)
198237.8 C (100.0 F)
198335.6 C (96.1 F)
198436.7 C (98.1 F)
198538.9 C (102.0 F)
198637.2 C (99.0 F)
198737.2 C (99.0 F)
198838.3 C (100.9 F)
198933.3 C (91.9 F)
199037.2 C (99.0 F)
199136.7 C (98.1 F)
199238.9 C (102.0 F)
199335.0 C (95.0 F)
199438.9 C (102.0 F)
199535.0 C (95.0 F)
199637.8 C (100.0 F)
199735.0 C (95.0 F)
199840.6 C (105.1 F)
199934.4 C (93.9 F)
200035.0 C (95.0 F)
200134.4 C (93.9 F)
200236.7 C (98.1 F)
200338.3 C (100.9 F)
200437.8 C (100.0 F)
200535.6 C (96.1 F)
200639.4 C (102.9 F)
200736.1 C (97.0 F)
200839.4 C (102.9 F)
200938.3 C (100.9 F)
201036.1 C (97.0 F)
201135.0 C (95.0 F)
201237.2 C (99.0 F)
201334.4 C (93.9 F)
201436.1 C (97.0 F)
201539.4 C (102.9 F)
201637.2 C (99.0 F)
201739.4 C (102.9 F)
201838.3 C (100.9 F)
201936.1 C (97.0 F)
202037.8 C (100.0 F)
202142.8 C (109.0 F)
202241.1 C (106.0 F)
202340.0 C (104.0 F)
202440.0 C (104.0 F)
202538.3 C (100.9 F)
202638.9 C (102.0 F)

Coldest night (TNn)

Coldest night (TNn) at Carson Fish Hatchery by year The coldest night of the year at Carson Fish Hatchery, 1977 to 2026. The record is -18.9 C (-2.0 F) in 1985, marked on the chart; the median year is -12.2 C (10.0 F). -20-15-10-519801990200020102020Record: -18.9 C (-2.0 F) in 1985
The coldest night of the year at Carson Fish Hatchery, 1977 to 2026. The record is -18.9 C (-2.0 F) in 1985, marked on the chart; the median year is -12.2 C (10.0 F).
Coldest night (TNn) at Carson Fish Hatchery by year
YearColdest night (TNn)
1977-11.7 C (10.9 F)
1978-14.4 C (6.1 F)
1979-16.1 C (3.0 F)
1980-16.7 C (1.9 F)
1981-8.9 C (16.0 F)
1982-13.3 C (8.1 F)
1983-15.0 C (5.0 F)
1984-16.1 C (3.0 F)
1985-18.9 C (-2.0 F)
1986-7.8 C (18.0 F)
1987-12.8 C (9.0 F)
1988-11.7 C (10.9 F)
1989-16.1 C (3.0 F)
1990-16.7 C (1.9 F)
1991-10.6 C (12.9 F)
1992-9.4 C (15.1 F)
1993-13.3 C (8.1 F)
1994-12.2 C (10.0 F)
1995-11.7 C (10.9 F)
1996-17.2 C (1.0 F)
1997-11.7 C (10.9 F)
1998-15.6 C (3.9 F)
1999-5.0 C (23.0 F)
2000-7.2 C (19.0 F)
2001-6.1 C (21.0 F)
2002-9.4 C (15.1 F)
2003-7.8 C (18.0 F)
2004-14.4 C (6.1 F)
2005-10.0 C (14.0 F)
2006-12.2 C (10.0 F)
2007-12.2 C (10.0 F)
2008-13.9 C (7.0 F)
2009-15.6 C (3.9 F)
2010-13.3 C (8.1 F)
2011-13.3 C (8.1 F)
2012-6.7 C (19.9 F)
2013-16.1 C (3.0 F)
2014-11.7 C (10.9 F)
2015-9.4 C (15.1 F)
2016-8.3 C (17.1 F)
2017-6.1 C (21.0 F)
2018-11.1 C (12.0 F)
2019-12.8 C (9.0 F)
2020-5.6 C (21.9 F)
2021-9.4 C (15.1 F)
2022-13.9 C (7.0 F)
2023-13.3 C (8.1 F)
2024-10.0 C (14.0 F)
2025-14.4 C (6.1 F)
2026-7.8 C (18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Carson Fish Hatchery by year The wettest day of the year at Carson Fish Hatchery, 1977 to 2026. The record is 190.8 mm (7.5 in) in 2006, marked on the chart; the median year is 88.0 mm (3.5 in). 5010015020019801990200020102020Record: 190.8 mm (7.5 in) in 2006
The wettest day of the year at Carson Fish Hatchery, 1977 to 2026. The record is 190.8 mm (7.5 in) in 2006, marked on the chart; the median year is 88.0 mm (3.5 in).
Wettest day (Rx1day) at Carson Fish Hatchery by year
YearWettest day (Rx1day)
1977105.9 mm (4.2 in)
197859.9 mm (2.4 in)
197994.0 mm (3.7 in)
1980137.2 mm (5.4 in)
198171.4 mm (2.8 in)
1982100.8 mm (4.0 in)
198377.0 mm (3.0 in)
198487.1 mm (3.4 in)
198578.2 mm (3.1 in)
198676.7 mm (3.0 in)
1987109.0 mm (4.3 in)
198865.3 mm (2.6 in)
198961.0 mm (2.4 in)
199089.7 mm (3.5 in)
199169.1 mm (2.7 in)
199269.6 mm (2.7 in)
199385.3 mm (3.4 in)
1994123.7 mm (4.9 in)
1995115.6 mm (4.6 in)
1996124.2 mm (4.9 in)
199796.3 mm (3.8 in)
1998137.4 mm (5.4 in)
1999124.0 mm (4.9 in)
200055.1 mm (2.2 in)
200184.6 mm (3.3 in)
200283.8 mm (3.3 in)
200388.9 mm (3.5 in)
200462.2 mm (2.4 in)
2005107.7 mm (4.2 in)
2006190.8 mm (7.5 in)
2007158.8 mm (6.3 in)
2008108.0 mm (4.3 in)
2009115.3 mm (4.5 in)
2010105.9 mm (4.2 in)
201183.3 mm (3.3 in)
2012140.0 mm (5.5 in)
201385.9 mm (3.4 in)
201463.5 mm (2.5 in)
2015150.4 mm (5.9 in)
201660.5 mm (2.4 in)
201783.8 mm (3.3 in)
201878.2 mm (3.1 in)
2019111.8 mm (4.4 in)
202078.0 mm (3.1 in)
202191.7 mm (3.6 in)
202281.5 mm (3.2 in)
202362.2 mm (2.4 in)
2024167.9 mm (6.6 in)
2025129.5 mm (5.1 in)
202683.8 mm (3.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Carson Fish Hatchery by year The wettest five days of the year at Carson Fish Hatchery, 1977 to 2026. The record is 518.7 mm (20.4 in) in 2006, marked on the chart; the median year is 196.0 mm (7.7 in). 020040060019801990200020102020Record: 518.7 mm (20.4 in) in 2006
The wettest five days of the year at Carson Fish Hatchery, 1977 to 2026. The record is 518.7 mm (20.4 in) in 2006, marked on the chart; the median year is 196.0 mm (7.7 in).
Wettest five days (Rx5day) at Carson Fish Hatchery by year
YearWettest five days (Rx5day)
1977298.4 mm (11.7 in)
1978119.4 mm (4.7 in)
1979159.5 mm (6.3 in)
1980329.9 mm (13.0 in)
1981222.0 mm (8.7 in)
1982243.1 mm (9.6 in)
1983246.3 mm (9.7 in)
1984168.2 mm (6.6 in)
1985109.6 mm (4.3 in)
1986195.1 mm (7.7 in)
1987236.5 mm (9.3 in)
1988212.9 mm (8.4 in)
1989129.5 mm (5.1 in)
1990294.0 mm (11.6 in)
1991158.0 mm (6.2 in)
1992206.7 mm (8.1 in)
1993168.4 mm (6.6 in)
1994224.8 mm (8.9 in)
1995259.9 mm (10.2 in)
1996403.4 mm (15.9 in)
1997373.1 mm (14.7 in)
1998272.5 mm (10.7 in)
1999245.4 mm (9.7 in)
2000151.0 mm (5.9 in)
2001217.7 mm (8.6 in)
2002205.0 mm (8.1 in)
2003178.5 mm (7.0 in)
2004168.3 mm (6.6 in)
2005222.3 mm (8.8 in)
2006518.7 mm (20.4 in)
2007292.1 mm (11.5 in)
2008196.9 mm (7.8 in)
2009195.0 mm (7.7 in)
2010205.0 mm (8.1 in)
2011197.1 mm (7.8 in)
2012274.9 mm (10.8 in)
2013141.4 mm (5.6 in)
2014223.6 mm (8.8 in)
2015191.2 mm (7.5 in)
20160.5 mm (0.02 in)
2017134.9 mm (5.3 in)
201870.7 mm (2.8 in)
201926.7 mm (1.1 in)
2020156.5 mm (6.2 in)
202118.6 mm (0.7 in)
2022158.9 mm (6.3 in)
2023133.1 mm (5.2 in)
202459.2 mm (2.3 in)
2025193.1 mm (7.6 in)
202663.9 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Carson Fish Hatchery by year The longest dry spell of the year at Carson Fish Hatchery, 1977 to 2026. The record is 92 days in 2021, marked on the chart; the median year is 34 days. 025507510019801990200020102020Record: 92 days in 2021
The longest dry spell of the year at Carson Fish Hatchery, 1977 to 2026. The record is 92 days in 2021, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Carson Fish Hatchery by year
YearLongest dry spell (CDD)
197714 days
197827 days
197933 days
198044 days
198153 days
198214 days
198330 days
198462 days
198551 days
198653 days
198754 days
198834 days
198924 days
199024 days
199137 days
199232 days
199350 days
199462 days
199527 days
199633 days
199720 days
199849 days
199932 days
200081 days
200132 days
200241 days
200377 days
200434 days
200541 days
200688 days
200728 days
200829 days
200952 days
201041 days
201154 days
201254 days
201327 days
201423 days
201551 days
201631 days
201782 days
201862 days
201923 days
202049 days
202192 days
202234 days
202329 days
202411 days
202512 days
202632 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

33 years with a frost

Across 33 years with a frost, the median last spring frost at Carson Fish Hatchery falls on 9 May and the median first autumn frost on 10 October, which leaves a median of 151 days between them.

Fitted over all years, the growing season changes by +11.8 days per decade at this station.

Frost dates and growing season at Carson Fish Hatchery
MeasureMedian, all yearsEarliest periodRecent period (1981 to 2025)Recent against earliestFitted trend
Last spring frost9 Mayn/a9 Mayn/a-5.6 days per decade
First autumn frost10 Octobern/a11 Octobern/a+6.2 days per decade
Growing days151 daysn/a153 daysn/a+11.8 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.

Download the Data

  • Data for Carson Fish Hatchery standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Carson Fish 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).