Built 2026-10-19 (19 October 2026)

Morse Lake Weather Records (USS0021C17S)

Record envelope, standing records and threshold days for Morse Lake (USS0021C17S), Washington, United States, with 49 years of record.

Key Facts for Morse Lake

  • Morse Lake (USS0021C17S) is a weather station in Washington, United States at 46.91 latitude and -121.48 longitude, 1,649 m (5,410 ft) above sea level.
  • The station reports from 1978 to 2026, 49 years of record.
  • 1,464 records set at Morse Lake still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Morse Lake set a daily record high maximum temperature of 20.7 C (69.3 F) on 7 October 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, 46.91 latitude, -121.48 longitude.
  • Elevation: 1,649 m (5,410 ft).
  • Period of record: 1978 to 2026, 49 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 Morse Lake, with 2026 drawn through them The band shows the record high and record low for each calendar day at Morse Lake. The lines show the 2026 daily maximum and minimum. 14 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Morse Lake. 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 Morse Lake, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.6 C (56.5 F)-28.4 C (-19.1 F)9.9 C (49.8 F)-11.6 C (11.1 F)
Feb14.9 C (58.8 F)-25.0 C (-13.0 F)11.9 C (53.4 F)-12.0 C (10.4 F)
Mar16.3 C (61.3 F)-20.2 C (-4.4 F)11.9 C (53.4 F)-11.1 C (12.0 F)
Apr20.6 C (69.1 F)-14.4 C (6.1 F)17.4 C (63.3 F)-5.8 C (21.6 F)
May24.8 C (76.6 F)-11.7 C (10.9 F)20.8 C (69.4 F)-2.1 C (28.2 F)
Jun33.0 C (91.4 F)-9.6 C (14.7 F)23.3 C (73.9 F)-0.5 C (31.1 F)
Jul30.4 C (86.7 F)-2.8 C (27.0 F)28.5 C (83.3 F)2.5 C (36.5 F)
Aug30.4 C (86.7 F)-2.0 C (28.4 F)27.7 C (81.9 F)0.9 C (33.6 F)
Sep28.7 C (83.7 F)-4.7 C (23.5 F)21.6 C (70.9 F)-1.9 C (28.6 F)
Oct24.2 C (75.6 F)-16.3 C (2.7 F)20.7 C (69.3 F)-2.4 C (27.7 F)
Nov17.0 C (62.6 F)-20.0 C (-4.0 F)n/an/a
Dec11.9 C (53.4 F)-29.0 C (-20.2 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Morse Lake by the year they were set 1,464 records at Morse Lake still stand. 1999 holds the most, with 92. 02550751001989: 81990: 381991: 451992: 721993: 421994: 421995: 291996: 861997: 311998: 281999: 922000: 402001: 332002: 502003: 462004: 302005: 332006: 332007: 252008: 592009: 412010: 182011: 312012: 252013: 312014: 412015: 502016: 352017: 262018: 222019: 352020: 282021: 262022: 562023: 292024: 342025: 442026: 301989199319972001200520092013201720212025
1,464 records at Morse Lake still stand. 1999 holds the most, with 92.
Standing records at Morse Lake by the year they were set
Year setStanding records
19898
199038
199145
199272
199342
199442
199529
199686
199731
199828
199992
200040
200133
200250
200346
200430
200533
200633
200725
200859
200941
201018
201131
201225
201331
201441
201550
201635
201726
201822
201935
202028
202126
202256
202329
202434
202544
202630

All-Time Record Progression

4 new records
When Morse Lake set new all-time records 4 all-time records were set at Morse Lake between 12 January 2021 and 31 July 2021. Each dot is a new record. Record daily precipitationRecord high maximum temperatureRecord high minimum temperature12 January 2021: Record daily precipitation 200.7 mm (7.9 in)28 June 2021: Record high maximum temperature 30.6 C (87.1 F)29 June 2021: Record high maximum temperature 33.0 C (91.4 F)31 July 2021: Record high minimum temperature 16.0 C (60.8 F)
4 all-time records were set at Morse Lake between 12 January 2021 and 31 July 2021. Each dot is a new record.
When Morse Lake set new all-time records
DateKindDetail
2021-01-12Record daily precipitationRecord daily precipitation 200.7 mm (7.9 in)
2021-06-28Record high maximum temperatureRecord high maximum temperature 30.6 C (87.1 F)
2021-06-29Record high maximum temperatureRecord high maximum temperature 33.0 C (91.4 F)
2021-07-31Record high minimum temperatureRecord high minimum temperature 16.0 C (60.8 F)

Wettest Day of Each Month

Jan: 200.7 mm (7.9 in)
Record daily precipitation for each month at Morse Lake The wettest day on record for each calendar month at Morse Lake. The most was 200.7 mm (7.9 in) on 12 January 2021. 0100200300 Jan: 200.7 mm (7.9 in), 12 January 2021 Jan Feb: 127.0 mm (5.0 in), 21 February 2012 Feb Mar: 165.1 mm (6.5 in), 18 March 1997 Mar Apr: 86.4 mm (3.4 in), 23 April 1996 Apr May: 43.2 mm (1.7 in), 3 May 2012 May Jun: 45.7 mm (1.8 in), 6 June 1985 Jun Jul: 27.9 mm (1.1 in), 9 July 1997 Jul Aug: 40.6 mm (1.6 in), 9 August 2019 Aug Sep: 104.1 mm (4.1 in), 28 September 2013 Sep Oct: 94.0 mm (3.7 in), 13 October 2016 Oct Nov: 109.2 mm (4.3 in), 20 November 1998 Nov Dec: 132.1 mm (5.2 in), 3 December 2007 Dec
The wettest day on record for each calendar month at Morse Lake. The most was 200.7 mm (7.9 in) on 12 January 2021.
Record daily precipitation for each month at Morse Lake
MonthRecord daily precipitation (mm)Date
Jan200.7 mm (7.9 in)12 January 2021
Feb127.0 mm (5.0 in)21 February 2012
Mar165.1 mm (6.5 in)18 March 1997
Apr86.4 mm (3.4 in)23 April 1996
May43.2 mm (1.7 in)3 May 2012
Jun45.7 mm (1.8 in)6 June 1985
Jul27.9 mm (1.1 in)9 July 1997
Aug40.6 mm (1.6 in)9 August 2019
Sep104.1 mm (4.1 in)28 September 2013
Oct94.0 mm (3.7 in)13 October 2016
Nov109.2 mm (4.3 in)20 November 1998
Dec132.1 mm (5.2 in)3 December 2007

Period of Record Coverage

1989 to 2026
Days with data per year at Morse Lake 38 years of record at Morse Lake, 1989 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1989, 2026. 1989: 111 of 365 days1990: 361 of 365 days1991: 365 of 365 days1992: 365 of 366 days1993: 351 of 365 days1994: 354 of 365 days1995: 365 of 365 days1996: 363 of 366 days1997: 365 of 365 days1998: 364 of 365 days1999: 364 of 365 days2000: 365 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 364 of 365 days2006: 364 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: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 364 of 366 days2021: 363 of 365 days2022: 364 of 365 days2023: 364 of 365 days2024: 365 of 366 days2025: 363 of 365 days2026: 286 of 365 days19901995200020052010201520202025
38 years of record at Morse Lake, 1989 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1989, 2026.
Days with data per year at Morse Lake
YearDays with dataShare of yearComplete
198911130%No
199036199%Yes
1991365100%Yes
1992365100%Yes
199335196%Yes
199435497%Yes
1995365100%Yes
199636399%Yes
1997365100%Yes
1998364100%Yes
1999364100%Yes
2000365100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005364100%Yes
2006364100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010364100%Yes
2011365100%Yes
2012365100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
202036499%Yes
202136399%Yes
2022364100%Yes
2023364100%Yes
2024365100%Yes
202536399%Yes
202628678%No

Latest Records

20
Latest records at Morse Lake
DateStationRecordValueBeat old record byOld record stoodSignificance
7 October 2026Morse Lake, USdaily high max (Provisional)20.7 C (69.3 F)0.3 C (0.5 F)4 years4 of 100 (Routine)
13 September 2026Morse Lake, USdaily rain (Provisional)33.0 mm (1.3 in)10.1 mm (0.4 in)21 years18 of 100 (Routine)
4 September 2026Morse Lake, USdaily rain (Tie, Provisional)7.6 mm (0.30 in)tie40 years4 of 100 (Routine)
29 August 2026Morse Lake, USdaily low max (Provisional)8.3 C (46.9 F)0.5 C (0.9 F)16 years7 of 100 (Routine)
21 August 2026Morse Lake, USdaily high max (Provisional)27.7 C (81.9 F)1.0 C (1.8 F)20 years10 of 100 (Routine)
21 August 2026Morse Lake, USdaily high min (Provisional)12.2 C (54.0 F)0.5 C (0.9 F)20 years10 of 100 (Routine)
22 July 2026Morse Lake, USdaily high max (Tie)28.5 C (83.3 F)tie32 years3 of 100 (Routine)
15 July 2026Morse Lake, USdaily high max26.0 C (78.8 F)0.4 C (0.7 F)8 years5 of 100 (Routine)
19 June 2026Morse Lake, USdaily high min8.0 C (46.4 F)1.5 C (2.7 F)33 years18 of 100 (Routine)
19 June 2026Morse Lake, USdaily high max21.9 C (71.4 F)0.3 C (0.5 F)8 years5 of 100 (Routine)
18 June 2026Morse Lake, USdaily high max21.1 C (70.0 F)0.9 C (1.6 F)33 years14 of 100 (Routine)
16 June 2026Morse Lake, USdaily high min8.5 C (47.3 F)2.5 C (4.5 F)11 years15 of 100 (Routine)
15 June 2026Morse Lake, USdaily high min9.3 C (48.7 F)4.0 C (7.2 F)11 years20 of 100 (Routine)
15 June 2026Morse Lake, USdaily high max23.3 C (73.9 F)2.2 C (4.0 F)24 years13 of 100 (Routine)
14 June 2026Morse Lake, USdaily high min6.1 C (43.0 F)1.3 C (2.3 F)24 years14 of 100 (Routine)
14 June 2026Morse Lake, USdaily high max22.1 C (71.8 F)0.4 C (0.7 F)24 years10 of 100 (Routine)
8 June 2026Morse Lake, USdaily rain27.9 mm (1.1 in)10.1 mm (0.4 in)8 years18 of 100 (Routine)
28 May 2026Morse Lake, USdaily high min6.7 C (44.1 F)0.3 C (0.5 F)20 years10 of 100 (Routine)
16 May 2026Morse Lake, USdaily rain (Tie)17.8 mm (0.7 in)tie8 years1 of 100 (Routine)
13 May 2026Morse Lake, USdaily rain30.5 mm (1.2 in)5.1 mm (0.20 in)16 years16 of 100 (Routine)

Climate Trend

36 complete years, 1990 to 2025
Annual mean temperature at Morse Lake as warming stripes, 1990 to 2025 One stripe for each of 36 complete years at Morse Lake, 1990 to 2025. Blue stripes are years cooler than the station's own mean of 3.4 C (38.2 F); red stripes are warmer. The coolest year was 1999, at 1.9 C (35.3 F), and the warmest was 2015, at 5.5 C (41.8 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1990: 2.7 C, -0.8 C from the station mean1991: 2.9 C, -0.5 C from the station mean1992: 3.7 C, +0.2 C from the station mean1993: 1.9 C, -1.5 C from the station mean1994: 2.9 C, -0.6 C from the station mean1995: 2.5 C, -0.9 C from the station mean1996: 2.1 C, -1.4 C from the station mean1997: 2.3 C, -1.1 C from the station mean1998: 3.0 C, -0.4 C from the station mean1999: 1.9 C, -1.6 C from the station mean2000: 1.9 C, -1.5 C from the station mean2001: 2.5 C, -1.0 C from the station mean2002: 2.7 C, -0.8 C from the station mean2003: 3.1 C, -0.3 C from the station mean2004: 3.6 C, +0.2 C from the station mean2005: 3.5 C, 0.0 C from the station mean2006: 4.0 C, +0.6 C from the station mean2007: 3.9 C, +0.4 C from the station mean2008: 3.4 C, 0.0 C from the station mean2009: 3.8 C, +0.4 C from the station mean2010: 3.6 C, +0.2 C from the station mean2011: 2.9 C, -0.6 C from the station mean2012: 3.6 C, +0.2 C from the station mean2013: 4.1 C, +0.6 C from the station mean2014: 4.4 C, +1.0 C from the station mean2015: 5.5 C, +2.0 C from the station mean2016: 4.1 C, +0.7 C from the station mean2017: 3.9 C, +0.4 C from the station mean2018: 4.1 C, +0.7 C from the station mean2019: 3.6 C, +0.1 C from the station mean2020: 4.2 C, +0.8 C from the station mean2021: 4.0 C, +0.6 C from the station mean2022: 4.3 C, +0.9 C from the station mean2023: 4.1 C, +0.7 C from the station mean2024: 4.2 C, +0.8 C from the station mean2025: 4.9 C, +1.4 C from the station mean19901995200020052010201520202025
One stripe for each of 36 complete years at Morse Lake, 1990 to 2025. Blue stripes are years cooler than the station's own mean of 3.4 C (38.2 F); red stripes are warmer. The coolest year was 1999, at 1.9 C (35.3 F), and the warmest was 2015, at 5.5 C (41.8 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Morse Lake as warming stripes, 1990 to 2025
YearAnnual mean temperatureDifference from the station mean
19902.7 C-0.75 C
19912.9 C-0.51 C
19923.7 C+0.24 C
19931.9 C-1.51 C
19942.9 C-0.57 C
19952.5 C-0.90 C
19962.1 C-1.37 C
19972.3 C-1.11 C
19983.0 C-0.39 C
19991.9 C-1.58 C
20001.9 C-1.49 C
20012.5 C-0.95 C
20022.7 C-0.77 C
20033.1 C-0.33 C
20043.6 C+0.20 C
20053.5 C+0.05 C
20064.0 C+0.58 C
20073.9 C+0.45 C
20083.4 C-0.01 C
20093.8 C+0.39 C
20103.6 C+0.17 C
20112.9 C-0.58 C
20123.6 C+0.17 C
20134.1 C+0.65 C
20144.4 C+0.97 C
20155.5 C+2.03 C
20164.1 C+0.67 C
20173.9 C+0.42 C
20184.1 C+0.66 C
20193.6 C+0.12 C
20204.2 C+0.80 C
20214.0 C+0.60 C
20224.3 C+0.89 C
20234.1 C+0.71 C
20244.2 C+0.78 C
20254.9 C+1.44 C

The annual mean temperature here has risen by 0.6 C (0.5 to 0.8) per decade over 1990 to 2025. In Fahrenheit: 1.1 F (0.8 to 1.5) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Morse Lake
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.6 C (0.5 to 0.8) per decade1.1 F (0.8 to 1.5) per decade1990 to 202536Rise
Mean daily maximum0.5 C (0.3 to 0.7) per decade0.9 F (0.5 to 1.3) per decade1990 to 202536Rise
Mean daily minimum0.8 C (0.6 to 1.0) per decade1.4 F (1.1 to 1.7) per decade1990 to 202536Rise

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

1978 to 2026
Yearly extremes at Morse Lake: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)33.0 C (91.4 F)202128.5 C (83.3 F)38
Coldest night (TNn)-29.0 C (-20.2 F)1990-20.1 C (-4.2 F)38
Wettest day (Rx1day)200.7 mm (7.9 in)202186.4 mm (3.4 in)46
Wettest five days (Rx5day)342.9 mm (13.5 in)1997208.3 mm (8.2 in)46
Longest dry spell (CDD)92 days200632 days46

Hottest day (TXx)

Hottest day (TXx) at Morse Lake by year The hottest day of the year at Morse Lake, 1978 to 2026. The record is 33.0 C (91.4 F) in 2021, marked on the chart; the median year is 28.5 C (83.3 F). 22.52527.53032.53519801990200020102020Record: 33.0 C (91.4 F) in 2021
The hottest day of the year at Morse Lake, 1978 to 2026. The record is 33.0 C (91.4 F) in 2021, marked on the chart; the median year is 28.5 C (83.3 F).
Hottest day (TXx) at Morse Lake by year
YearHottest day (TXx)
1978n/a
1979n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
198924.5 C (76.1 F)
199029.4 C (84.9 F)
199126.3 C (79.3 F)
199228.5 C (83.3 F)
199324.7 C (76.5 F)
199428.7 C (83.7 F)
199525.9 C (78.6 F)
199629.2 C (84.6 F)
199728.0 C (82.4 F)
199830.4 C (86.7 F)
199927.0 C (80.6 F)
200025.8 C (78.4 F)
200127.6 C (81.7 F)
200229.7 C (85.5 F)
200328.8 C (83.8 F)
200429.8 C (85.6 F)
200528.7 C (83.7 F)
200630.4 C (86.7 F)
200728.9 C (84.0 F)
200830.4 C (86.7 F)
200928.3 C (82.9 F)
201026.1 C (79.0 F)
201126.1 C (79.0 F)
201227.6 C (81.7 F)
201328.4 C (83.1 F)
201427.0 C (80.6 F)
201528.4 C (83.1 F)
201626.2 C (79.2 F)
201728.5 C (83.3 F)
201828.5 C (83.3 F)
201926.1 C (79.0 F)
202028.7 C (83.7 F)
202133.0 C (91.4 F)
202229.6 C (85.3 F)
202329.2 C (84.6 F)
202429.0 C (84.2 F)
202528.4 C (83.1 F)
202628.5 C (83.3 F)

Coldest night (TNn)

Coldest night (TNn) at Morse Lake by year The coldest night of the year at Morse Lake, 1978 to 2026. The record is -29.0 C (-20.2 F) in 1990, marked on the chart; the median year is -20.1 C (-4.2 F). -30-25-20-15-1019801990200020102020Record: -29.0 C (-20.2 F) in 1990
The coldest night of the year at Morse Lake, 1978 to 2026. The record is -29.0 C (-20.2 F) in 1990, marked on the chart; the median year is -20.1 C (-4.2 F).
Coldest night (TNn) at Morse Lake by year
YearColdest night (TNn)
1978n/a
1979n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989-12.9 C (8.8 F)
1990-29.0 C (-20.2 F)
1991-17.6 C (0.3 F)
1992-20.0 C (-4.0 F)
1993-21.5 C (-6.7 F)
1994-20.7 C (-5.3 F)
1995-22.8 C (-9.0 F)
1996-26.6 C (-15.9 F)
1997-19.4 C (-2.9 F)
1998-25.8 C (-14.4 F)
1999-15.0 C (5.0 F)
2000-18.1 C (-0.6 F)
2001-16.6 C (2.1 F)
2002-17.4 C (0.7 F)
2003-18.6 C (-1.5 F)
2004-25.1 C (-13.2 F)
2005-19.9 C (-3.8 F)
2006-22.4 C (-8.3 F)
2007-18.4 C (-1.1 F)
2008-20.4 C (-4.7 F)
2009-23.2 C (-9.8 F)
2010-20.0 C (-4.0 F)
2011-23.8 C (-10.8 F)
2012-15.4 C (4.3 F)
2013-22.6 C (-8.7 F)
2014-25.0 C (-13.0 F)
2015-17.6 C (0.3 F)
2016-17.1 C (1.2 F)
2017-20.2 C (-4.4 F)
2018-18.5 C (-1.3 F)
2019-20.2 C (-4.4 F)
2020-14.1 C (6.6 F)
2021-19.1 C (-2.4 F)
2022-24.0 C (-11.2 F)
2023-22.4 C (-8.3 F)
2024-28.4 C (-19.1 F)
2025-22.4 C (-8.3 F)
2026-12.0 C (10.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Morse Lake by year The wettest day of the year at Morse Lake, 1978 to 2026. The record is 200.7 mm (7.9 in) in 2021, marked on the chart; the median year is 86.4 mm (3.4 in). 5010015020025019801990200020102020Record: 200.7 mm (7.9 in) in 2021
The wettest day of the year at Morse Lake, 1978 to 2026. The record is 200.7 mm (7.9 in) in 2021, marked on the chart; the median year is 86.4 mm (3.4 in).
Wettest day (Rx1day) at Morse Lake by year
YearWettest day (Rx1day)
197871.1 mm (2.8 in)
1979116.8 mm (4.6 in)
198368.6 mm (2.7 in)
198450.8 mm (2.0 in)
198571.1 mm (2.8 in)
198663.5 mm (2.5 in)
1987101.6 mm (4.0 in)
198866.0 mm (2.6 in)
1989134.6 mm (5.3 in)
1990121.9 mm (4.8 in)
199191.4 mm (3.6 in)
199276.2 mm (3.0 in)
199350.8 mm (2.0 in)
1994104.1 mm (4.1 in)
1995134.6 mm (5.3 in)
1996101.6 mm (4.0 in)
1997165.1 mm (6.5 in)
1998109.2 mm (4.3 in)
199983.8 mm (3.3 in)
200055.9 mm (2.2 in)
200199.1 mm (3.9 in)
200294.0 mm (3.7 in)
200371.1 mm (2.8 in)
200455.9 mm (2.2 in)
200573.7 mm (2.9 in)
200696.5 mm (3.8 in)
2007132.1 mm (5.2 in)
200886.4 mm (3.4 in)
2009116.8 mm (4.6 in)
201058.4 mm (2.3 in)
2011104.1 mm (4.1 in)
2012127.0 mm (5.0 in)
2013104.1 mm (4.1 in)
201466.0 mm (2.6 in)
201583.8 mm (3.3 in)
201694.0 mm (3.7 in)
201786.4 mm (3.4 in)
201868.6 mm (2.7 in)
2019106.7 mm (4.2 in)
202061.0 mm (2.4 in)
2021200.7 mm (7.9 in)
2022111.8 mm (4.4 in)
202376.2 mm (3.0 in)
202458.4 mm (2.3 in)
202578.7 mm (3.1 in)
202661.0 mm (2.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Morse Lake by year The wettest five days of the year at Morse Lake, 1978 to 2026. The record is 342.9 mm (13.5 in) in 1997, marked on the chart; the median year is 208.3 mm (8.2 in). 010020030040019801990200020102020Record: 342.9 mm (13.5 in) in 1997
The wettest five days of the year at Morse Lake, 1978 to 2026. The record is 342.9 mm (13.5 in) in 1997, marked on the chart; the median year is 208.3 mm (8.2 in).
Wettest five days (Rx5day) at Morse Lake by year
YearWettest five days (Rx5day)
197899.2 mm (3.9 in)
1979253.9 mm (10.0 in)
1983228.6 mm (9.0 in)
1984157.5 mm (6.2 in)
1985144.8 mm (5.7 in)
1986159.9 mm (6.3 in)
1987220.9 mm (8.7 in)
1988208.3 mm (8.2 in)
1989165.1 mm (6.5 in)
1990312.4 mm (12.3 in)
1991223.5 mm (8.8 in)
1992200.7 mm (7.9 in)
1993190.4 mm (7.5 in)
1994175.2 mm (6.9 in)
1995241.3 mm (9.5 in)
1996254.0 mm (10.0 in)
1997342.9 mm (13.5 in)
1998254.0 mm (10.0 in)
1999218.4 mm (8.6 in)
2000109.2 mm (4.3 in)
2001251.4 mm (9.9 in)
2002183.0 mm (7.2 in)
2003195.5 mm (7.7 in)
2004182.9 mm (7.2 in)
2005177.8 mm (7.0 in)
2006287.0 mm (11.3 in)
2007281.9 mm (11.1 in)
2008152.5 mm (6.0 in)
2009266.6 mm (10.5 in)
2010139.7 mm (5.5 in)
2011233.6 mm (9.2 in)
2012233.7 mm (9.2 in)
2013215.8 mm (8.5 in)
2014200.8 mm (7.9 in)
2015251.4 mm (9.9 in)
2016213.4 mm (8.4 in)
2017195.6 mm (7.7 in)
2018180.4 mm (7.1 in)
2019213.4 mm (8.4 in)
2020175.3 mm (6.9 in)
2021256.6 mm (10.1 in)
2022266.6 mm (10.5 in)
2023195.6 mm (7.7 in)
2024172.7 mm (6.8 in)
2025208.2 mm (8.2 in)
2026165.1 mm (6.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Morse Lake by year The longest dry spell of the year at Morse Lake, 1978 to 2026. The record is 92 days in 2006, marked on the chart; the median year is 32 days. 02040608010019801990200020102020Record: 92 days in 2006
The longest dry spell of the year at Morse Lake, 1978 to 2026. The record is 92 days in 2006, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Morse Lake by year
YearLongest dry spell (CDD)
197831 days
197921 days
198315 days
198445 days
198551 days
198652 days
198766 days
198822 days
198926 days
199018 days
199139 days
199229 days
199318 days
199430 days
199527 days
199619 days
199732 days
199849 days
199929 days
200046 days
200124 days
200227 days
200371 days
200422 days
200516 days
200692 days
200727 days
200845 days
200945 days
201052 days
201132 days
201233 days
201344 days
201423 days
201537 days
201615 days
201757 days
201835 days
201916 days
202038 days
202151 days
202280 days
202331 days
202435 days
202561 days
202619 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

36 years with a frost

Across 36 years with a frost, the median last spring frost at Morse Lake falls on 18 June and the median first autumn frost on 11 September, which leaves a median of 86 days between them.

Fitted over all years, the growing season changes by +26.0 days per decade at this station.

Frost dates and growing season at Morse Lake
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost18 Junen/a19 Junen/a-3.2 days per decade
First autumn frost11 Septembern/a16 Septembern/a+22.8 days per decade
Growing days86 daysn/a87 daysn/a+26.0 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

42 years, 1984 to 2025

A day with at least 87.1 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 195.3 mm (7.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Morse Lake: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years87.1 mm (3.4 in)
5 years115.2 mm (4.5 in)
10 years134.2 mm (5.3 in)
25 years158.5 mm (6.2 in)
50 years176.8 mm (7.0 in)Longer than the 42 years of record
100 years195.3 mm (7.7 in)Longer than the 42 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, 42 years of values from 1984 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: 200.7 mm (7.9 in) in 2021; 165.1 mm (6.5 in) in 1997; 134.6 mm (5.3 in) in 1989.

Download the Data

  • Data for Morse Lake standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Morse Lake threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-17).