Built 2026-10-17 (17 October 2026)

Everett Snohomish Co AP Weather Records (USW00024222)

Record envelope, standing records and threshold days for Everett Snohomish Co AP (USW00024222), Washington, United States, with 79 years of record.

Key Facts for Everett Snohomish Co AP

  • Everett Snohomish Co AP (USW00024222) is a weather station in Washington, United States at 47.92 latitude and -122.28 longitude, 167 m (548 ft) above sea level.
  • The station reports from 1948 to 2026, 79 years of record.
  • 1,464 records set at Everett Snohomish Co AP still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Everett Snohomish Co AP tied a daily record low minimum temperature of 6.1 C (43.0 F) on 28 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, 47.92 latitude, -122.28 longitude.
  • Elevation: 167 m (548 ft).
  • Period of record: 1948 to 2026, 79 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

14 days at or beyond a record
Daily record high and record low at Everett Snohomish Co AP, with 2026 drawn through them The band shows the record high and record low for each calendar day at Everett Snohomish Co AP. The lines show the 2026 daily maximum and minimum. 14 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 Everett Snohomish Co AP. The lines show the 2026 daily maximum and minimum. 14 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Everett Snohomish Co AP, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan18.3 C (64.9 F)-16.1 C (3.0 F)12.8 C (55.0 F)-4.4 C (24.1 F)
Feb17.8 C (64.0 F)-12.8 C (9.0 F)16.1 C (61.0 F)-2.8 C (27.0 F)
Mar25.6 C (78.1 F)-6.0 C (21.2 F)14.4 C (57.9 F)-1.7 C (28.9 F)
Apr28.3 C (82.9 F)-0.6 C (30.9 F)21.1 C (70.0 F)3.3 C (37.9 F)
May31.1 C (88.0 F)1.1 C (34.0 F)26.7 C (80.1 F)5.6 C (42.1 F)
Jun37.8 C (100.0 F)4.4 C (39.9 F)28.3 C (82.9 F)8.3 C (46.9 F)
Jul37.8 C (100.0 F)5.0 C (41.0 F)31.7 C (89.1 F)10.6 C (51.1 F)
Aug37.8 C (100.0 F)7.8 C (46.0 F)31.1 C (88.0 F)11.1 C (52.0 F)
Sep31.7 C (89.1 F)2.8 C (37.0 F)23.9 C (75.0 F)6.1 C (43.0 F)
Oct30.6 C (87.1 F)-1.7 C (28.9 F)20.0 C (68.0 F)4.4 C (39.9 F)
Nov22.8 C (73.0 F)-9.9 C (14.2 F)n/an/a
Dec16.7 C (62.1 F)-12.1 C (10.2 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Everett Snohomish Co AP by the year they were set 1,464 records at Everett Snohomish Co AP still stand. 1950 holds the most, with 116. 0501001501948: 731949: 1131950: 1161951: 651952: 251998: 71999: 432000: 192001: 282002: 332003: 402004: 382005: 462006: 372007: 332008: 672009: 402010: 402011: 312012: 302013: 302014: 452015: 542016: 572017: 332018: 382019: 352020: 242021: 392022: 412023: 412024: 532025: 282026: 22194819522001200520092013201720212025
1,464 records at Everett Snohomish Co AP still stand. 1950 holds the most, with 116.
Standing records at Everett Snohomish Co AP by the year they were set
Year setStanding records
194873
1949113
1950116
195165
195225
19987
199943
200019
200128
200233
200340
200438
200546
200637
200733
200867
200940
201040
201131
201230
201330
201445
201554
201657
201733
201838
201935
202024
202139
202241
202341
202453
202528
202622

Wettest Day of Each Month

Jun: 81.5 mm (3.2 in)
Record daily precipitation for each month at Everett Snohomish Co AP The wettest day on record for each calendar month at Everett Snohomish Co AP. The most was 81.5 mm (3.2 in) on 13 June 1948. 0255075100 Jan: 42.9 mm (1.7 in), 21 January 2016 Jan Feb: 51.8 mm (2.0 in), 21 February 1949 Feb Mar: 43.7 mm (1.7 in), 15 March 2015 Mar Apr: 32.8 mm (1.3 in), 2 April 2026 Apr May: 44.7 mm (1.8 in), 28 May 1948 May Jun: 81.5 mm (3.2 in), 13 June 1948 Jun Jul: 24.4 mm (1.0 in), 23 July 2014 Jul Aug: 37.3 mm (1.5 in), 29 August 2013 Aug Sep: 41.4 mm (1.6 in), 26 September 1948 Sep Oct: 45.5 mm (1.8 in), 20 October 2003 Oct Nov: 47.0 mm (1.9 in), 19 November 2012 Nov Dec: 72.6 mm (2.9 in), 3 December 2007 Dec
The wettest day on record for each calendar month at Everett Snohomish Co AP. The most was 81.5 mm (3.2 in) on 13 June 1948.
Record daily precipitation for each month at Everett Snohomish Co AP
MonthRecord daily precipitation (mm)Date
Jan42.9 mm (1.7 in)21 January 2016
Feb51.8 mm (2.0 in)21 February 1949
Mar43.7 mm (1.7 in)15 March 2015
Apr32.8 mm (1.3 in)2 April 2026
May44.7 mm (1.8 in)28 May 1948
Jun81.5 mm (3.2 in)13 June 1948
Jul24.4 mm (1.0 in)23 July 2014
Aug37.3 mm (1.5 in)29 August 2013
Sep41.4 mm (1.6 in)26 September 1948
Oct45.5 mm (1.8 in)20 October 2003
Nov47.0 mm (1.9 in)19 November 2012
Dec72.6 mm (2.9 in)3 December 2007

Period of Record Coverage

1948 to 2026
Days with data per year at Everett Snohomish Co AP 34 years of record at Everett Snohomish Co AP, 1948 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1952, 1998, 2026. 1948: 363 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 182 of 366 days1998: 102 of 365 days1999: 363 of 365 days2000: 360 of 366 days2001: 362 of 365 days2002: 365 of 365 days2003: 364 of 365 days2004: 365 of 366 days2005: 362 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 365 of 365 days2012: 365 of 366 days2013: 363 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 364 of 365 days2019: 362 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 363 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 356 of 365 days2026: 286 of 365 days1950200020052010201520202025
34 years of record at Everett Snohomish Co AP, 1948 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1952, 1998, 2026.
Days with data per year at Everett Snohomish Co AP
YearDays with dataShare of yearComplete
194836399%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
195218250%No
199810228%No
199936399%Yes
200036098%Yes
200136299%Yes
2002365100%Yes
2003364100%Yes
2004365100%Yes
200536299%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010364100%Yes
2011365100%Yes
2012365100%Yes
201336399%Yes
2014365100%Yes
2015364100%Yes
2016366100%Yes
2017365100%Yes
2018364100%Yes
201936299%Yes
2020366100%Yes
2021365100%Yes
202236399%Yes
2023365100%Yes
2024366100%Yes
202535698%Yes
202628678%No

Latest Records

20
Latest records at Everett Snohomish Co AP
DateStationRecordValueBeat old record byOld record stoodSignificance
28 September 2026Everett Snohomish Co AP, USdaily low min (Tie, Provisional)6.1 C (43.0 F)tie76 years7 of 100 (Routine)
25 August 2026Everett Snohomish Co AP, USdaily high max (Provisional)31.1 C (88.0 F)0.5 C (0.9 F)4 years9 of 100 (Routine)
1 August 2026Everett Snohomish Co AP, USdaily low max (Tie)18.9 C (66.0 F)tie16 years2 of 100 (Routine)
22 July 2026Everett Snohomish Co AP, USdaily high max (Tie)31.7 C (89.1 F)tie20 years3 of 100 (Routine)
16 July 2026Everett Snohomish Co AP, USdaily low max16.7 C (62.1 F)1.1 C (2.0 F)27 years17 of 100 (Routine)
24 June 2026Everett Snohomish Co AP, USdaily high max28.3 C (82.9 F)0.5 C (0.9 F)8 years10 of 100 (Routine)
23 June 2026Everett Snohomish Co AP, USdaily high min17.8 C (64.0 F)3.4 C (6.1 F)12 years25 of 100 (Routine)
23 June 2026Everett Snohomish Co AP, USdaily high max28.3 C (82.9 F)2.7 C (4.9 F)3 years13 of 100 (Routine)
22 June 2026Everett Snohomish Co AP, USdaily high max26.1 C (79.0 F)1.7 C (3.1 F)4 years12 of 100 (Routine)
19 June 2026Everett Snohomish Co AP, USdaily high min (Tie)13.3 C (55.9 F)tie8 years2 of 100 (Routine)
15 June 2026Everett Snohomish Co AP, USdaily high min16.7 C (62.1 F)3.9 C (7.0 F)11 years28 of 100 (Routine)
15 June 2026Everett Snohomish Co AP, USdaily high max27.8 C (82.0 F)2.2 C (4.0 F)11 years15 of 100 (Routine)
14 June 2026Everett Snohomish Co AP, USdaily high min15.6 C (60.1 F)2.3 C (4.1 F)27 years25 of 100 (Routine)
14 June 2026Everett Snohomish Co AP, USdaily high max27.8 C (82.0 F)2.8 C (5.0 F)27 years21 of 100 (Routine)
9 June 2026Everett Snohomish Co AP, USdaily rain36.8 mm (1.4 in)19.8 mm (0.8 in)16 years40 of 100 (Notable)
16 May 2026Everett Snohomish Co AP, USdaily rain32.0 mm (1.3 in)17.3 mm (0.7 in)8 years42 of 100 (Notable)
15 May 2026Everett Snohomish Co AP, USdaily low max (Tie)11.1 C (52.0 F)tie23 years3 of 100 (Routine)
13 May 2026Everett Snohomish Co AP, USdaily rain14.2 mm (0.6 in)7.6 mm (0.30 in)17 years20 of 100 (Routine)
12 May 2026Everett Snohomish Co AP, USdaily high max26.7 C (80.1 F)1.7 C (3.1 F)24 years18 of 100 (Routine)
4 May 2026Everett Snohomish Co AP, USdaily high min12.8 C (55.0 F)1.7 C (3.1 F)20 years20 of 100 (Routine)

Climate Trend

30 complete years, 1948 to 2024
Annual mean temperature at Everett Snohomish Co AP as warming stripes, 1948 to 2024 One stripe for each of 30 complete years at Everett Snohomish Co AP, 1948 to 2024. Blue stripes are years cooler than the station's own mean of 10.6 C (51.1 F); red stripes are warmer. The coolest year was 1948, at 8.8 C (47.9 F), and the warmest was 2024, at 12.1 C (53.8 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1948: 8.8 C, -1.8 C from the station mean1949: 9.3 C, -1.3 C from the station mean1950: 8.9 C, -1.8 C from the station mean1951: 9.6 C, -1.0 C from the station mean1999: 10.0 C, -0.6 C from the station mean2000: 10.2 C, -0.4 C from the station mean2001: 10.3 C, -0.3 C from the station mean2002: 10.3 C, -0.3 C from the station mean2003: 10.9 C, +0.3 C from the station mean2004: 11.4 C, +0.7 C from the station mean2005: 11.0 C, +0.4 C from the station mean2006: 10.6 C, -0.1 C from the station mean2007: 10.2 C, -0.4 C from the station mean2008: 9.8 C, -0.8 C from the station mean2009: 10.5 C, -0.2 C from the station mean2010: 11.1 C, +0.4 C from the station mean2011: 10.0 C, -0.6 C from the station mean2012: 10.6 C, 0.0 C from the station mean2013: 10.6 C, 0.0 C from the station mean2014: 11.5 C, +0.8 C from the station mean2015: 12.1 C, +1.4 C from the station mean2016: 11.8 C, +1.2 C from the station mean2017: 10.7 C, +0.1 C from the station mean2018: 11.3 C, +0.6 C from the station mean2019: 10.9 C, +0.3 C from the station mean2020: 11.1 C, +0.5 C from the station mean2021: 10.8 C, +0.2 C from the station mean2022: 10.9 C, +0.3 C from the station mean2023: 11.6 C, +0.9 C from the station mean2024: 12.1 C, +1.5 C from the station mean19481960197019801990200020102020
One stripe for each of 30 complete years at Everett Snohomish Co AP, 1948 to 2024. Blue stripes are years cooler than the station's own mean of 10.6 C (51.1 F); red stripes are warmer. The coolest year was 1948, at 8.8 C (47.9 F), and the warmest was 2024, at 12.1 C (53.8 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Everett Snohomish Co AP as warming stripes, 1948 to 2024
YearAnnual mean temperatureDifference from the station mean
19488.8 C-1.80 C
19499.3 C-1.30 C
19508.9 C-1.76 C
19519.6 C-0.98 C
199910.0 C-0.63 C
200010.2 C-0.44 C
200110.3 C-0.33 C
200210.3 C-0.34 C
200310.9 C+0.32 C
200411.4 C+0.74 C
200511.0 C+0.36 C
200610.6 C-0.07 C
200710.2 C-0.43 C
20089.8 C-0.82 C
200910.5 C-0.16 C
201011.1 C+0.43 C
201110.0 C-0.58 C
201210.6 C0.00 C
201310.6 C+0.01 C
201411.5 C+0.84 C
201512.1 C+1.43 C
201611.8 C+1.17 C
201710.7 C+0.10 C
201811.3 C+0.64 C
201910.9 C+0.29 C
202011.1 C+0.52 C
202110.8 C+0.21 C
202210.9 C+0.26 C
202311.6 C+0.94 C
202412.1 C+1.49 C

The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1948 to 2024. In Fahrenheit: 0.5 F (0.4 to 0.7) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Everett Snohomish Co AP
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.3 C (0.2 to 0.4) per decade0.5 F (0.4 to 0.7) per decade1948 to 202430Rise
Mean daily maximum0.2 C (0.1 to 0.3) per decade0.4 F (0.3 to 0.6) per decade1948 to 202430Rise
Mean daily minimum0.4 C (0.3 to 0.4) per decade0.6 F (0.5 to 0.8) per decade1948 to 202430Rise

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

1948 to 2026
Yearly extremes at Everett Snohomish Co AP: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.8 C (100.0 F)200931.7 C (89.1 F)34
Coldest night (TNn)-16.1 C (3.0 F)1950-7.4 C (18.7 F)34
Wettest day (Rx1day)81.5 mm (3.2 in)194836.8 mm (1.4 in)34
Wettest five days (Rx5day)112.5 mm (4.4 in)200769.8 mm (2.7 in)34
Longest dry spell (CDD)88 days201726 days34

Hottest day (TXx)

Hottest day (TXx) at Everett Snohomish Co AP by year The hottest day of the year at Everett Snohomish Co AP, 1948 to 2026. The record is 37.8 C (100.0 F) in 2009, marked on the chart; the median year is 31.7 C (89.1 F). 20253035401960198020002020Record: 37.8 C (100.0 F) in 2009
The hottest day of the year at Everett Snohomish Co AP, 1948 to 2026. The record is 37.8 C (100.0 F) in 2009, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Everett Snohomish Co AP by year
YearHottest day (TXx)
194828.9 C (84.0 F)
194929.4 C (84.9 F)
195031.1 C (88.0 F)
195132.8 C (91.0 F)
195226.1 C (79.0 F)
199822.8 C (73.0 F)
199927.2 C (81.0 F)
200028.9 C (84.0 F)
200128.9 C (84.0 F)
200230.0 C (86.0 F)
200331.7 C (89.1 F)
200432.8 C (91.0 F)
200530.0 C (86.0 F)
200632.2 C (90.0 F)
200732.2 C (90.0 F)
200831.1 C (88.0 F)
200937.8 C (100.0 F)
201032.8 C (91.0 F)
201127.2 C (81.0 F)
201231.1 C (88.0 F)
201330.0 C (86.0 F)
201432.8 C (91.0 F)
201534.4 C (93.9 F)
201631.7 C (89.1 F)
201731.1 C (88.0 F)
201831.7 C (89.1 F)
201930.6 C (87.1 F)
202037.8 C (100.0 F)
202137.8 C (100.0 F)
202233.3 C (91.9 F)
202333.3 C (91.9 F)
202433.9 C (93.0 F)
202531.7 C (89.1 F)
202631.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at Everett Snohomish Co AP by year The coldest night of the year at Everett Snohomish Co AP, 1948 to 2026. The record is -16.1 C (3.0 F) in 1950, marked on the chart; the median year is -7.4 C (18.7 F). -20-15-10-501960198020002020Record: -16.1 C (3.0 F) in 1950
The coldest night of the year at Everett Snohomish Co AP, 1948 to 2026. The record is -16.1 C (3.0 F) in 1950, marked on the chart; the median year is -7.4 C (18.7 F).
Coldest night (TNn) at Everett Snohomish Co AP by year
YearColdest night (TNn)
1948-10.0 C (14.0 F)
1949-9.4 C (15.1 F)
1950-16.1 C (3.0 F)
1951-10.6 C (12.9 F)
1952-8.9 C (16.0 F)
1998-10.0 C (14.0 F)
1999-2.8 C (27.0 F)
2000-3.9 C (25.0 F)
2001-3.3 C (26.1 F)
2002-6.7 C (19.9 F)
2003-4.4 C (24.1 F)
2004-8.3 C (17.1 F)
2005-4.4 C (24.1 F)
2006-9.3 C (15.3 F)
2007-7.1 C (19.2 F)
2008-12.1 C (10.2 F)
2009-8.2 C (17.2 F)
2010-9.9 C (14.2 F)
2011-6.0 C (21.2 F)
2012-5.5 C (22.1 F)
2013-7.7 C (18.1 F)
2014-7.7 C (18.1 F)
2015-4.3 C (24.3 F)
2016-4.3 C (24.3 F)
2017-6.0 C (21.2 F)
2018-3.8 C (25.2 F)
2019-10.5 C (13.1 F)
2020-4.3 C (24.3 F)
2021-10.5 C (13.1 F)
2022-8.8 C (16.2 F)
2023-6.0 C (21.2 F)
2024-10.5 C (13.1 F)
2025-4.3 C (24.3 F)
2026-4.4 C (24.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Everett Snohomish Co AP by year The wettest day of the year at Everett Snohomish Co AP, 1948 to 2026. The record is 81.5 mm (3.2 in) in 1948, marked on the chart; the median year is 36.8 mm (1.4 in). 0204060801001960198020002020Record: 81.5 mm (3.2 in) in 1948
The wettest day of the year at Everett Snohomish Co AP, 1948 to 2026. The record is 81.5 mm (3.2 in) in 1948, marked on the chart; the median year is 36.8 mm (1.4 in).
Wettest day (Rx1day) at Everett Snohomish Co AP by year
YearWettest day (Rx1day)
194881.5 mm (3.2 in)
194951.8 mm (2.0 in)
195041.1 mm (1.6 in)
195130.0 mm (1.2 in)
195216.3 mm (0.6 in)
199826.9 mm (1.1 in)
199939.9 mm (1.6 in)
200023.6 mm (0.9 in)
200136.3 mm (1.4 in)
200229.0 mm (1.1 in)
200345.5 mm (1.8 in)
200434.5 mm (1.4 in)
200523.4 mm (0.9 in)
200629.5 mm (1.2 in)
200772.6 mm (2.9 in)
200840.1 mm (1.6 in)
200928.4 mm (1.1 in)
201035.8 mm (1.4 in)
201145.0 mm (1.8 in)
201247.0 mm (1.9 in)
201337.3 mm (1.5 in)
201436.3 mm (1.4 in)
201543.7 mm (1.7 in)
201642.9 mm (1.7 in)
201731.5 mm (1.2 in)
201839.4 mm (1.6 in)
201943.9 mm (1.7 in)
202050.5 mm (2.0 in)
202136.8 mm (1.4 in)
202241.7 mm (1.6 in)
202330.0 mm (1.2 in)
202429.5 mm (1.2 in)
202530.0 mm (1.2 in)
202636.8 mm (1.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Everett Snohomish Co AP by year The wettest five days of the year at Everett Snohomish Co AP, 1948 to 2026. The record is 112.5 mm (4.4 in) in 2007, marked on the chart; the median year is 69.8 mm (2.7 in). 204060801001201960198020002020Record: 112.5 mm (4.4 in) in 2007
The wettest five days of the year at Everett Snohomish Co AP, 1948 to 2026. The record is 112.5 mm (4.4 in) in 2007, marked on the chart; the median year is 69.8 mm (2.7 in).
Wettest five days (Rx5day) at Everett Snohomish Co AP by year
YearWettest five days (Rx5day)
1948108.4 mm (4.3 in)
194991.5 mm (3.6 in)
195066.7 mm (2.6 in)
195172.3 mm (2.8 in)
195239.6 mm (1.6 in)
199854.8 mm (2.2 in)
1999104.3 mm (4.1 in)
200037.1 mm (1.5 in)
200171.2 mm (2.8 in)
200271.0 mm (2.8 in)
200397.2 mm (3.8 in)
200452.6 mm (2.1 in)
200561.4 mm (2.4 in)
200675.7 mm (3.0 in)
2007112.5 mm (4.4 in)
200859.9 mm (2.4 in)
200964.9 mm (2.6 in)
201059.0 mm (2.3 in)
2011106.2 mm (4.2 in)
201289.4 mm (3.5 in)
201353.6 mm (2.1 in)
201464.0 mm (2.5 in)
201587.7 mm (3.5 in)
201676.8 mm (3.0 in)
201760.3 mm (2.4 in)
201852.9 mm (2.1 in)
201984.5 mm (3.3 in)
202084.3 mm (3.3 in)
202185.3 mm (3.4 in)
202284.7 mm (3.3 in)
202368.6 mm (2.7 in)
202444.5 mm (1.8 in)
202541.9 mm (1.6 in)
202661.5 mm (2.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Everett Snohomish Co AP by year The longest dry spell of the year at Everett Snohomish Co AP, 1948 to 2026. The record is 88 days in 2017, marked on the chart; the median year is 26 days. 0204060801001960198020002020Record: 88 days in 2017
The longest dry spell of the year at Everett Snohomish Co AP, 1948 to 2026. The record is 88 days in 2017, marked on the chart; the median year is 26 days.
Longest dry spell (CDD) at Everett Snohomish Co AP by year
YearLongest dry spell (CDD)
194813 days
194919 days
195030 days
195152 days
195213 days
199812 days
199918 days
200021 days
200117 days
200234 days
200337 days
200430 days
200515 days
200629 days
200718 days
200822 days
200927 days
201025 days
201149 days
201237 days
201320 days
201425 days
201550 days
201617 days
201788 days
201846 days
201923 days
202014 days
202129 days
202240 days
202333 days
202424 days
202546 days
202643 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

30 years with a frost

Across 30 years with a frost, the median last spring frost at Everett Snohomish Co AP falls on 13 March and the median first autumn frost on 10 November, which leaves a median of 243 days between them.

Fitted over all years, the growing season changes by +5.2 days per decade at this station.

Frost dates and growing season at Everett Snohomish Co AP
MeasureMedian, all yearsEarliest periodRecent period (1948 to 2024)Recent against earliestFitted trend
Last spring frost13 Marchn/a13 Marchn/a-3.3 days per decade
First autumn frost10 Novembern/a10 Novembern/a+1.9 days per decade
Growing days243 daysn/a243 daysn/a+5.2 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

31 years, 1948 to 2025

A day with at least 36.9 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 84.1 mm (3.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Everett Snohomish Co AP: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years36.9 mm (1.5 in)
5 years47.2 mm (1.9 in)
10 years54.8 mm (2.2 in)
25 years65.6 mm (2.6 in)
50 years74.4 mm (2.9 in)Longer than the 31 years of record
100 years84.1 mm (3.3 in)Longer than the 31 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, 31 years of values from 1948 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: 81.5 mm (3.2 in) in 1948; 72.6 mm (2.9 in) in 2007; 51.8 mm (2.0 in) in 1949.

Download the Data

  • Data for Everett Snohomish Co AP standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Everett Snohomish Co AP 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).