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Built 2026-10-19 (19 October 2026)

Surprise Lakes Weather Records (USS0021C13S)

Record envelope, standing records and threshold days for Surprise Lakes (USS0021C13S), Washington, United States, with 47 years of record.

Key Facts for Surprise Lakes

  • Surprise Lakes (USS0021C13S) is a weather station in Washington, United States at 46.09 latitude and -121.76 longitude, 1,308 m (4,290 ft) above sea level.
  • The station reports from 1980 to 2026, 47 years of record.
  • 1,464 records set at Surprise Lakes still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Surprise Lakes set a daily record high minimum temperature of 13.6 C (56.5 F) on 20 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, 46.09 latitude, -121.76 longitude.
  • Elevation: 1,308 m (4,290 ft).
  • Period of record: 1980 to 2026, 47 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

7 days at or beyond a record
Daily record high and record low at Surprise Lakes, with 2026 drawn through them The band shows the record high and record low for each calendar day at Surprise Lakes. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Surprise Lakes. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Surprise Lakes, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.1 C (70.0 F)-24.7 C (-12.5 F)17.6 C (63.7 F)-8.6 C (16.5 F)
Feb23.4 C (74.1 F)-27.0 C (-16.6 F)14.3 C (57.7 F)-6.2 C (20.8 F)
Mar26.2 C (79.2 F)-20.7 C (-5.3 F)13.0 C (55.4 F)-5.5 C (22.1 F)
Apr36.1 C (97.0 F)-19.3 C (-2.7 F)17.4 C (63.3 F)-3.5 C (25.7 F)
May38.1 C (100.6 F)-14.9 C (5.2 F)24.0 C (75.2 F)-0.4 C (31.3 F)
Jun38.4 C (101.1 F)-12.1 C (10.2 F)27.0 C (80.6 F)1.4 C (34.5 F)
Jul39.7 C (103.5 F)-3.3 C (26.1 F)30.3 C (86.5 F)3.9 C (39.0 F)
Aug42.2 C (108.0 F)-10.4 C (13.3 F)28.4 C (83.1 F)3.9 C (39.0 F)
Sep38.1 C (100.6 F)-9.6 C (14.7 F)23.0 C (73.4 F)1.8 C (35.2 F)
Oct34.4 C (93.9 F)-15.8 C (3.6 F)23.0 C (73.4 F)0.1 C (32.2 F)
Nov26.4 C (79.5 F)-20.1 C (-4.2 F)n/an/a
Dec22.8 C (73.0 F)-25.7 C (-14.3 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Surprise Lakes by the year they were set 1,464 records at Surprise Lakes still stand. 1985 holds the most, with 232. 01002003001982: 1161983: 371984: 1281985: 2321986: 1651987: 1081988: 101989: 211990: 191991: 171992: 261993: 141994: 171995: 231996: 311997: 121998: 161999: 182000: 122001: 232002: 182003: 222004: 172005: 212006: 252007: 42008: 102009: 122010: 72011: 92012: 112013: 122014: 152015: 212016: 162017: 152018: 72019: 152020: 122021: 262022: 362023: 202024: 332025: 212026: 14198219871992199720022007201220172022
1,464 records at Surprise Lakes still stand. 1985 holds the most, with 232.
Standing records at Surprise Lakes by the year they were set
Year setStanding records
1982116
198337
1984128
1985232
1986165
1987108
198810
198921
199019
199117
199226
199314
199417
199523
199631
199712
199816
199918
200012
200123
200218
200322
200417
200521
200625
20074
200810
200912
20107
20119
201211
201312
201415
201521
201616
201715
20187
201915
202012
202126
202236
202320
202433
202521
202614

Wettest Day of Each Month

Dec: 248.9 mm (9.8 in)
Record daily precipitation for each month at Surprise Lakes The wettest day on record for each calendar month at Surprise Lakes. The most was 248.9 mm (9.8 in) on 7 December 1982. 0100200300 Jan: 137.2 mm (5.4 in), 22 January 1982 Jan Feb: 101.6 mm (4.0 in), 23 February 1986 Feb Mar: 94.0 mm (3.7 in), 29 March 1983 Mar Apr: 83.8 mm (3.3 in), 2 April 1999 Apr May: 71.1 mm (2.8 in), 1 May 1984 May Jun: 76.2 mm (3.0 in), 6 June 1985 Jun Jul: 38.1 mm (1.5 in), 4 July 1981 Jul Aug: 76.2 mm (3.0 in), 25 August 2004 Aug Sep: 71.1 mm (2.8 in), 24 September 1992 Sep Oct: 111.8 mm (4.4 in), 31 October 1994 Oct Nov: 172.7 mm (6.8 in), 6 November 2006 Nov Dec: 248.9 mm (9.8 in), 7 December 1982 Dec
The wettest day on record for each calendar month at Surprise Lakes. The most was 248.9 mm (9.8 in) on 7 December 1982.
Record daily precipitation for each month at Surprise Lakes
MonthRecord daily precipitation (mm)Date
Jan137.2 mm (5.4 in)22 January 1982
Feb101.6 mm (4.0 in)23 February 1986
Mar94.0 mm (3.7 in)29 March 1983
Apr83.8 mm (3.3 in)2 April 1999
May71.1 mm (2.8 in)1 May 1984
Jun76.2 mm (3.0 in)6 June 1985
Jul38.1 mm (1.5 in)4 July 1981
Aug76.2 mm (3.0 in)25 August 2004
Sep71.1 mm (2.8 in)24 September 1992
Oct111.8 mm (4.4 in)31 October 1994
Nov172.7 mm (6.8 in)6 November 2006
Dec248.9 mm (9.8 in)7 December 1982

Period of Record Coverage

1982 to 2026
Days with data per year at Surprise Lakes 45 years of record at Surprise Lakes, 1982 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1982, 1983, 1984, 1988, 1989, 1993, 2007, 2008 and others. 1982: 142 of 365 days1983: 93 of 365 days1984: 285 of 366 days1985: 333 of 365 days1986: 351 of 365 days1987: 332 of 365 days1988: 103 of 366 days1989: 310 of 365 days1990: 350 of 365 days1991: 362 of 365 days1992: 366 of 366 days1993: 294 of 365 days1994: 336 of 365 days1995: 362 of 365 days1996: 365 of 366 days1997: 364 of 365 days1998: 363 of 365 days1999: 364 of 365 days2000: 365 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 347 of 366 days2005: 359 of 365 days2006: 337 of 365 days2007: 8 of 365 days2008: 93 of 366 days2009: 363 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 344 of 365 days2019: 364 of 365 days2020: 361 of 366 days2021: 360 of 365 days2022: 365 of 365 days2023: 364 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 286 of 365 days1990200020102020
45 years of record at Surprise Lakes, 1982 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1982, 1983, 1984, 1988, 1989, 1993, 2007, 2008 and others.
Days with data per year at Surprise Lakes
YearDays with dataShare of yearComplete
198214239%No
19839325%No
198428578%No
198533391%Yes
198635196%Yes
198733291%Yes
198810328%No
198931085%No
199035096%Yes
199136299%Yes
1992366100%Yes
199329481%No
199433692%Yes
199536299%Yes
1996365100%Yes
1997364100%Yes
199836399%Yes
1999364100%Yes
2000365100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
200434795%Yes
200535998%Yes
200633792%Yes
200782%No
20089325%No
200936399%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
201834494%Yes
2019364100%Yes
202036199%Yes
202136099%Yes
2022365100%Yes
2023364100%Yes
2024366100%Yes
2025365100%Yes
202628678%No

Latest Records

20
Latest records at Surprise Lakes
DateStationRecordValueBeat old record byOld record stoodSignificance
20 August 2026Surprise Lakes, USdaily high min (Provisional)13.6 C (56.5 F)0.1 C (0.2 F)9 years6 of 100 (Routine)
30 June 2026Surprise Lakes, USdaily low max (Tie)8.3 C (46.9 F)tie15 years2 of 100 (Routine)
19 June 2026Surprise Lakes, USdaily high min11.0 C (51.8 F)0.2 C (0.4 F)5 years5 of 100 (Routine)
15 June 2026Surprise Lakes, USdaily high max27.0 C (80.6 F)3.6 C (6.5 F)24 years16 of 100 (Routine)
15 June 2026Surprise Lakes, USdaily high min13.2 C (55.8 F)3.3 C (5.9 F)11 years15 of 100 (Routine)
14 June 2026Surprise Lakes, USdaily high min12.3 C (54.1 F)2.4 C (4.3 F)27 years18 of 100 (Routine)
13 May 2026Surprise Lakes, USdaily rain45.7 mm (1.8 in)17.8 mm (0.7 in)29 years31 of 100 (Routine)
3 May 2026Surprise Lakes, USdaily high min10.9 C (51.6 F)2.2 C (4.0 F)40 years21 of 100 (Routine)
3 May 2026Surprise Lakes, USdaily high max21.9 C (71.4 F)0.1 C (0.2 F)36 years14 of 100 (Routine)
2 May 2026Surprise Lakes, USdaily high max19.5 C (67.1 F)1.1 C (2.0 F)33 years15 of 100 (Routine)
15 April 2026Surprise Lakes, USdaily rain33.0 mm (1.3 in)2.5 mm (0.10 in)20 years12 of 100 (Routine)
10 April 2026Surprise Lakes, USdaily high min5.7 C (42.3 F)1.4 C (2.5 F)21 years13 of 100 (Routine)
5 April 2026Surprise Lakes, USdaily high min6.1 C (43.0 F)2.5 C (4.5 F)40 years22 of 100 (Routine)
19 March 2026Surprise Lakes, USdaily high min4.5 C (40.1 F)0.4 C (0.7 F)1 year5 of 100 (Routine)
13 March 2026Surprise Lakes, USdaily rain88.9 mm (3.5 in)40.6 mm (1.6 in)9 years35 of 100 (Notable)
11 March 2026Surprise Lakes, USdaily rain86.4 mm (3.4 in)10.2 mm (0.4 in)24 years18 of 100 (Routine)
6 February 2026Surprise Lakes, USdaily high max (Tie)14.3 C (57.7 F)tie39 years3 of 100 (Routine)
4 February 2026Surprise Lakes, USdaily high max10.8 C (51.4 F)0.4 C (0.7 F)16 years9 of 100 (Routine)
21 January 2026Surprise Lakes, USdaily low max-5.1 C (22.8 F)2.6 C (4.7 F)22 years15 of 100 (Routine)
14 January 2026Surprise Lakes, USdaily high max17.6 C (63.7 F)4.1 C (7.4 F)16 years17 of 100 (Routine)

Climate Trend

29 complete years, 1986 to 2025
Annual mean temperature at Surprise Lakes as warming stripes, 1986 to 2025 One stripe for each of 29 complete years at Surprise Lakes, 1986 to 2025. Blue stripes are years cooler than the station's own mean of 5.7 C (42.2 F); red stripes are warmer. The coolest year was 2000, at 4.4 C (39.9 F), and the warmest was 1986, at 10.4 C (50.8 F). The strongest colour marks a difference of 4.8 C (8.6 F). 1986: 10.4 C, +4.8 C from the station mean1991: 5.2 C, -0.4 C from the station mean1992: 6.1 C, +0.4 C from the station mean1995: 5.4 C, -0.3 C from the station mean1996: 4.8 C, -0.8 C from the station mean1997: 5.0 C, -0.7 C from the station mean1998: 5.7 C, 0.0 C from the station mean1999: 4.7 C, -1.0 C from the station mean2000: 4.4 C, -1.3 C from the station mean2001: 4.9 C, -0.7 C from the station mean2002: 5.1 C, -0.6 C from the station mean2003: 5.7 C, 0.0 C from the station mean2005: 5.3 C, -0.4 C from the station mean2009: 5.3 C, -0.4 C from the station mean2010: 5.3 C, -0.4 C from the station mean2011: 4.7 C, -1.0 C from the station mean2012: 5.1 C, -0.5 C from the station mean2013: 5.1 C, -0.6 C from the station mean2014: 5.3 C, -0.3 C from the station mean2015: 6.4 C, +0.8 C from the station mean2016: 5.1 C, -0.5 C from the station mean2017: 4.7 C, -0.9 C from the station mean2019: 5.7 C, +0.1 C from the station mean2020: 6.5 C, +0.8 C from the station mean2021: 6.3 C, +0.6 C from the station mean2022: 6.5 C, +0.8 C from the station mean2023: 6.3 C, +0.7 C from the station mean2024: 6.2 C, +0.5 C from the station mean2025: 7.0 C, +1.3 C from the station mean198619901995200020052010201520202025
One stripe for each of 29 complete years at Surprise Lakes, 1986 to 2025. Blue stripes are years cooler than the station's own mean of 5.7 C (42.2 F); red stripes are warmer. The coolest year was 2000, at 4.4 C (39.9 F), and the warmest was 1986, at 10.4 C (50.8 F). The strongest colour marks a difference of 4.8 C (8.6 F).
Annual mean temperature at Surprise Lakes as warming stripes, 1986 to 2025
YearAnnual mean temperatureDifference from the station mean
198610.4 C+4.78 C
19915.2 C-0.44 C
19926.1 C+0.40 C
19955.4 C-0.29 C
19964.8 C-0.83 C
19975.0 C-0.71 C
19985.7 C+0.01 C
19994.7 C-0.95 C
20004.4 C-1.29 C
20014.9 C-0.72 C
20025.1 C-0.58 C
20035.7 C+0.04 C
20055.3 C-0.40 C
20095.3 C-0.37 C
20105.3 C-0.38 C
20114.7 C-1.01 C
20125.1 C-0.53 C
20135.1 C-0.57 C
20145.3 C-0.33 C
20156.4 C+0.78 C
20165.1 C-0.53 C
20174.7 C-0.92 C
20195.7 C+0.08 C
20206.5 C+0.81 C
20216.3 C+0.64 C
20226.5 C+0.81 C
20236.3 C+0.67 C
20246.2 C+0.55 C
20257.0 C+1.34 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

1980 to 2026
Yearly extremes at Surprise Lakes: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.2 C (108.0 F)198630.3 C (86.5 F)45
Coldest night (TNn)-27.0 C (-16.6 F)1982-14.8 C (5.4 F)45
Wettest day (Rx1day)248.9 mm (9.8 in)198288.9 mm (3.5 in)47
Wettest five days (Rx5day)442.0 mm (17.4 in)2006226.1 mm (8.9 in)47
Longest dry spell (CDD)80 days202230 days47

Hottest day (TXx)

Hottest day (TXx) at Surprise Lakes by year The hottest day of the year at Surprise Lakes, 1980 to 2026. The record is 42.2 C (108.0 F) in 1986, marked on the chart; the median year is 30.3 C (86.5 F). 102030405019801990200020102020Record: 42.2 C (108.0 F) in 1986
The hottest day of the year at Surprise Lakes, 1980 to 2026. The record is 42.2 C (108.0 F) in 1986, marked on the chart; the median year is 30.3 C (86.5 F).
Hottest day (TXx) at Surprise Lakes by year
YearHottest day (TXx)
1980n/a
1981n/a
198221.4 C (70.5 F)
198313.9 C (57.0 F)
198437.4 C (99.3 F)
198535.7 C (96.3 F)
198642.2 C (108.0 F)
198741.7 C (107.1 F)
198828.4 C (83.1 F)
198926.5 C (79.7 F)
199031.5 C (88.7 F)
199129.1 C (84.4 F)
199232.6 C (90.7 F)
199327.4 C (81.3 F)
199433.7 C (92.7 F)
199529.0 C (84.2 F)
199632.0 C (89.6 F)
199729.7 C (85.5 F)
199834.1 C (93.4 F)
199928.5 C (83.3 F)
200030.1 C (86.2 F)
200131.6 C (88.9 F)
200233.3 C (91.9 F)
200332.7 C (90.9 F)
200432.0 C (89.6 F)
200530.6 C (87.1 F)
200634.3 C (93.7 F)
200715.6 C (60.1 F)
200820.2 C (68.4 F)
200930.7 C (87.3 F)
201027.9 C (82.2 F)
201128.0 C (82.4 F)
201228.7 C (83.7 F)
201328.2 C (82.8 F)
201429.3 C (84.7 F)
201531.7 C (89.1 F)
201628.9 C (84.0 F)
201730.5 C (86.9 F)
201829.6 C (85.3 F)
201928.3 C (82.9 F)
202030.2 C (86.4 F)
202135.0 C (95.0 F)
202233.7 C (92.7 F)
202332.7 C (90.9 F)
202432.6 C (90.7 F)
202530.0 C (86.0 F)
202630.3 C (86.5 F)

Coldest night (TNn)

Coldest night (TNn) at Surprise Lakes by year The coldest night of the year at Surprise Lakes, 1980 to 2026. The record is -27.0 C (-16.6 F) in 1982, marked on the chart; the median year is -14.8 C (5.4 F). -30-25-20-15-10-519801990200020102020Record: -27.0 C (-16.6 F) in 1982
The coldest night of the year at Surprise Lakes, 1980 to 2026. The record is -27.0 C (-16.6 F) in 1982, marked on the chart; the median year is -14.8 C (5.4 F).
Coldest night (TNn) at Surprise Lakes by year
YearColdest night (TNn)
1980n/a
1981n/a
1982-27.0 C (-16.6 F)
1983-24.9 C (-12.8 F)
1984-25.7 C (-14.3 F)
1985-26.9 C (-16.4 F)
1986-14.0 C (6.8 F)
1987-14.2 C (6.4 F)
1988-12.6 C (9.3 F)
1989-25.7 C (-14.3 F)
1990-24.7 C (-12.5 F)
1991-14.0 C (6.8 F)
1992-13.0 C (8.6 F)
1993-18.4 C (-1.1 F)
1994-17.0 C (1.4 F)
1995-18.9 C (-2.0 F)
1996-20.7 C (-5.3 F)
1997-14.8 C (5.4 F)
1998-22.2 C (-8.0 F)
1999-11.8 C (10.8 F)
2000-11.5 C (11.3 F)
2001-12.0 C (10.4 F)
2002-12.9 C (8.8 F)
2003-13.8 C (7.2 F)
2004-19.7 C (-3.5 F)
2005-14.3 C (6.3 F)
2006-17.4 C (0.7 F)
2007-7.5 C (18.5 F)
2008-16.0 C (3.2 F)
2009-16.6 C (2.1 F)
2010-20.1 C (-4.2 F)
2011-16.4 C (2.5 F)
2012-9.2 C (15.4 F)
2013-17.7 C (0.1 F)
2014-18.1 C (-0.6 F)
2015-12.5 C (9.5 F)
2016-13.0 C (8.6 F)
2017-15.3 C (4.5 F)
2018-14.3 C (6.3 F)
2019-13.2 C (8.2 F)
2020-8.6 C (16.5 F)
2021-14.4 C (6.1 F)
2022-19.4 C (-2.9 F)
2023-14.8 C (5.4 F)
2024-21.8 C (-7.2 F)
2025-13.6 C (7.5 F)
2026-8.6 C (16.5 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Surprise Lakes by year The wettest day of the year at Surprise Lakes, 1980 to 2026. The record is 248.9 mm (9.8 in) in 1982, marked on the chart; the median year is 88.9 mm (3.5 in). 5010015020025019801990200020102020Record: 248.9 mm (9.8 in) in 1982
The wettest day of the year at Surprise Lakes, 1980 to 2026. The record is 248.9 mm (9.8 in) in 1982, marked on the chart; the median year is 88.9 mm (3.5 in).
Wettest day (Rx1day) at Surprise Lakes by year
YearWettest day (Rx1day)
198076.2 mm (3.0 in)
198196.5 mm (3.8 in)
1982248.9 mm (9.8 in)
198394.0 mm (3.7 in)
198473.7 mm (2.9 in)
198576.2 mm (3.0 in)
1986101.6 mm (4.0 in)
198791.4 mm (3.6 in)
198871.1 mm (2.8 in)
198958.4 mm (2.3 in)
199091.4 mm (3.6 in)
199171.1 mm (2.8 in)
199271.1 mm (2.8 in)
199361.0 mm (2.4 in)
1994111.8 mm (4.4 in)
199581.3 mm (3.2 in)
1996101.6 mm (4.0 in)
199791.4 mm (3.6 in)
1998101.6 mm (4.0 in)
1999106.7 mm (4.2 in)
200076.2 mm (3.0 in)
200178.7 mm (3.1 in)
200276.2 mm (3.0 in)
2003101.6 mm (4.0 in)
200476.2 mm (3.0 in)
200576.2 mm (3.0 in)
2006172.7 mm (6.8 in)
2007114.3 mm (4.5 in)
200888.9 mm (3.5 in)
200994.0 mm (3.7 in)
201066.0 mm (2.6 in)
2011111.8 mm (4.4 in)
2012121.9 mm (4.8 in)
2013121.9 mm (4.8 in)
201481.3 mm (3.2 in)
2015114.3 mm (4.5 in)
201676.2 mm (3.0 in)
201786.4 mm (3.4 in)
201883.8 mm (3.3 in)
201973.7 mm (2.9 in)
202073.7 mm (2.9 in)
202194.0 mm (3.7 in)
2022144.8 mm (5.7 in)
202371.1 mm (2.8 in)
202468.6 mm (2.7 in)
2025101.6 mm (4.0 in)
202688.9 mm (3.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Surprise Lakes by year The wettest five days of the year at Surprise Lakes, 1980 to 2026. The record is 442.0 mm (17.4 in) in 2006, marked on the chart; the median year is 226.1 mm (8.9 in). 10020030040050019801990200020102020Record: 442.0 mm (17.4 in) in 2006
The wettest five days of the year at Surprise Lakes, 1980 to 2026. The record is 442.0 mm (17.4 in) in 2006, marked on the chart; the median year is 226.1 mm (8.9 in).
Wettest five days (Rx5day) at Surprise Lakes by year
YearWettest five days (Rx5day)
1980188.0 mm (7.4 in)
1981185.4 mm (7.3 in)
1982353.0 mm (13.9 in)
1983259.2 mm (10.2 in)
1984198.2 mm (7.8 in)
1985147.3 mm (5.8 in)
1986190.5 mm (7.5 in)
1987198.1 mm (7.8 in)
1988236.2 mm (9.3 in)
1989132.1 mm (5.2 in)
1990287.1 mm (11.3 in)
1991157.5 mm (6.2 in)
1992162.6 mm (6.4 in)
1993167.6 mm (6.6 in)
1994213.4 mm (8.4 in)
1995294.7 mm (11.6 in)
1996370.9 mm (14.6 in)
1997254.0 mm (10.0 in)
1998297.1 mm (11.7 in)
1999216.0 mm (8.5 in)
2000149.9 mm (5.9 in)
2001226.1 mm (8.9 in)
2002216.0 mm (8.5 in)
2003215.9 mm (8.5 in)
2004210.8 mm (8.3 in)
2005233.8 mm (9.2 in)
2006442.0 mm (17.4 in)
2007251.4 mm (9.9 in)
2008183.0 mm (7.2 in)
2009226.1 mm (8.9 in)
2010195.6 mm (7.7 in)
2011241.2 mm (9.5 in)
2012238.7 mm (9.4 in)
2013152.4 mm (6.0 in)
2014226.1 mm (8.9 in)
2015315.0 mm (12.4 in)
2016266.7 mm (10.5 in)
2017259.1 mm (10.2 in)
2018172.7 mm (6.8 in)
2019175.3 mm (6.9 in)
2020210.9 mm (8.3 in)
2021228.6 mm (9.0 in)
2022243.8 mm (9.6 in)
2023233.7 mm (9.2 in)
2024187.9 mm (7.4 in)
2025274.3 mm (10.8 in)
2026261.6 mm (10.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Surprise Lakes by year The longest dry spell of the year at Surprise Lakes, 1980 to 2026. The record is 80 days in 2022, marked on the chart; the median year is 30 days. 02040608019801990200020102020Record: 80 days in 2022
The longest dry spell of the year at Surprise Lakes, 1980 to 2026. The record is 80 days in 2022, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Surprise Lakes by year
YearLongest dry spell (CDD)
198011 days
198112 days
198229 days
198337 days
198463 days
198541 days
198625 days
198741 days
198820 days
198931 days
199017 days
199125 days
199215 days
199327 days
199429 days
199532 days
199619 days
199712 days
199842 days
199929 days
200058 days
200130 days
200230 days
200332 days
200444 days
200530 days
200629 days
200718 days
200841 days
200938 days
201036 days
201150 days
201230 days
201313 days
201418 days
201537 days
201625 days
201734 days
201866 days
201921 days
202029 days
202153 days
202280 days
202334 days
202436 days
202537 days
202628 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 Surprise Lakes falls on 24 May and the median first autumn frost on 29 September, which leaves a median of 119 days between them.

Fitted over all years, the growing season changes by +25.1 days per decade at this station.

Frost dates and growing season at Surprise Lakes
MeasureMedian, all yearsEarliest periodRecent period (1986 to 2025)Recent against earliestFitted trend
Last spring frost24 Mayn/a24 Mayn/a-9.6 days per decade
First autumn frost29 Septembern/a29 Septembern/a+15.5 days per decade
Growing days119 daysn/a119 daysn/a+25.1 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

44 years, 1981 to 2025

A day with at least 85.0 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 222.4 mm (8.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Surprise Lakes: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years85.0 mm (3.3 in)
5 years107.5 mm (4.2 in)
10 years126.8 mm (5.0 in)
25 years158.0 mm (6.2 in)
50 years187.1 mm (7.4 in)Longer than the 44 years of record
100 years222.4 mm (8.8 in)Longer than the 44 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, 44 years of values from 1981 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: 248.9 mm (9.8 in) in 1982; 172.7 mm (6.8 in) in 2006; 144.8 mm (5.7 in) in 2022.

Download the Data

  • Data for Surprise Lakes standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Surprise Lakes 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).