Built 2026-10-18 (18 October 2026)

Lasal Mountain Weather Records (USS0009L03S)

Record envelope, standing records and threshold days for Lasal Mountain (USS0009L03S), Utah, United States, with 47 years of record.

Key Facts for Lasal Mountain

  • Lasal Mountain (USS0009L03S) is a weather station in Utah, United States at 38.48 latitude and -109.27 longitude, 2,914 m (9,560 ft) above sea level.
  • The station reports from 1980 to 2026, 47 years of record.
  • 1,464 records set at Lasal Mountain still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Lasal Mountain set a daily record precipitation of 25.4 mm (1.0 in) on 14 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Utah, United States, 38.48 latitude, -109.27 longitude.
  • Elevation: 2,914 m (9,560 ft).
  • Period of record: 1980 to 2026, 47 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

22 days at or beyond a record
Daily record high and record low at Lasal Mountain, with 2026 drawn through them The band shows the record high and record low for each calendar day at Lasal Mountain. The lines show the 2026 daily maximum and minimum. 22 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 Lasal Mountain. The lines show the 2026 daily maximum and minimum. 22 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Lasal Mountain, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan14.2 C (57.6 F)-25.5 C (-13.9 F)7.9 C (46.2 F)-17.8 C (0.0 F)
Feb11.6 C (52.9 F)-26.1 C (-15.0 F)8.0 C (46.4 F)-19.0 C (-2.2 F)
Mar19.2 C (66.6 F)-20.3 C (-4.5 F)19.2 C (66.6 F)-11.6 C (11.1 F)
Apr19.4 C (66.9 F)-16.7 C (1.9 F)16.5 C (61.7 F)-11.9 C (10.6 F)
May23.2 C (73.8 F)-10.3 C (13.5 F)22.8 C (73.0 F)-4.8 C (23.4 F)
Jun28.2 C (82.8 F)-5.4 C (22.3 F)23.8 C (74.8 F)3.4 C (38.1 F)
Jul29.0 C (84.2 F)1.1 C (34.0 F)27.3 C (81.1 F)5.8 C (42.4 F)
Aug29.1 C (84.4 F)1.8 C (35.2 F)26.9 C (80.4 F)5.7 C (42.3 F)
Sep27.6 C (81.7 F)-6.3 C (20.7 F)22.8 C (73.0 F)3.6 C (38.5 F)
Oct21.9 C (71.4 F)-19.9 C (-3.8 F)19.0 C (66.2 F)-2.1 C (28.2 F)
Nov14.4 C (57.9 F)-23.6 C (-10.5 F)n/an/a
Dec12.6 C (54.7 F)-24.8 C (-12.6 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Lasal Mountain by the year they were set 1,464 records at Lasal Mountain still stand. 2020 holds the most, with 91. 02550751002002: 102003: 662004: 672005: 432006: 562007: 622008: 732009: 442010: 482011: 562012: 542013: 702014: 612015: 762016: 542017: 592018: 552019: 472020: 912021: 312022: 702023: 592024: 612025: 842026: 67200220052008201120142017202020232026
1,464 records at Lasal Mountain still stand. 2020 holds the most, with 91.
Standing records at Lasal Mountain by the year they were set
Year setStanding records
200210
200366
200467
200543
200656
200762
200873
200944
201048
201156
201254
201370
201461
201576
201654
201759
201855
201947
202091
202131
202270
202359
202461
202584
202667

Wettest Day of Each Month

Oct: 68.6 mm (2.7 in)
Record daily precipitation for each month at Lasal Mountain The wettest day on record for each calendar month at Lasal Mountain. The most was 68.6 mm (2.7 in) on 6 October 2006. 020406080 Jan: 43.2 mm (1.7 in), 19 January 1993 Jan Feb: 55.9 mm (2.2 in), 18 February 1983 Feb Mar: 61.0 mm (2.4 in), 13 March 2019 Mar Apr: 55.9 mm (2.2 in), 20 April 1985 Apr May: 38.1 mm (1.5 in), 8 May 2016 May Jun: 38.1 mm (1.5 in), 17 June 1995 Jun Jul: 50.8 mm (2.0 in), 18 July 2026 Jul Aug: 55.9 mm (2.2 in), 4 August 1997 Aug Sep: 48.3 mm (1.9 in), 23 September 2007 Sep Oct: 68.6 mm (2.7 in), 6 October 2006 Oct Nov: 55.9 mm (2.2 in), 10 November 2015 Nov Dec: 48.3 mm (1.9 in), 9 December 2021 Dec
The wettest day on record for each calendar month at Lasal Mountain. The most was 68.6 mm (2.7 in) on 6 October 2006.
Record daily precipitation for each month at Lasal Mountain
MonthRecord daily precipitation (mm)Date
Jan43.2 mm (1.7 in)19 January 1993
Feb55.9 mm (2.2 in)18 February 1983
Mar61.0 mm (2.4 in)13 March 2019
Apr55.9 mm (2.2 in)20 April 1985
May38.1 mm (1.5 in)8 May 2016
Jun38.1 mm (1.5 in)17 June 1995
Jul50.8 mm (2.0 in)18 July 2026
Aug55.9 mm (2.2 in)4 August 1997
Sep48.3 mm (1.9 in)23 September 2007
Oct68.6 mm (2.7 in)6 October 2006
Nov55.9 mm (2.2 in)10 November 2015
Dec48.3 mm (1.9 in)9 December 2021

Period of Record Coverage

2002 to 2026
Days with data per year at Lasal Mountain 25 years of record at Lasal Mountain, 2002 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2002, 2021, 2026. 2002: 100 of 365 days2003: 364 of 365 days2004: 365 of 366 days2005: 365 of 365 days2006: 353 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 345 of 366 days2013: 365 of 365 days2014: 364 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 263 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 286 of 365 days20052010201520202025
25 years of record at Lasal Mountain, 2002 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2002, 2021, 2026.
Days with data per year at Lasal Mountain
YearDays with dataShare of yearComplete
200210027%No
2003364100%Yes
2004365100%Yes
2005365100%Yes
200635397%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
201234594%Yes
2013365100%Yes
2014364100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
202126372%No
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628678%No

Latest Records

20
Latest records at Lasal Mountain
DateStationRecordValueBeat old record byOld record stoodSignificance
14 October 2026Lasal Mountain, USdaily rain (Provisional)25.4 mm (1.0 in)10.2 mm (0.4 in)20 years19 of 100 (Routine)
21 July 2026Lasal Mountain, USdaily rain (Tie)17.8 mm (0.7 in)tie16 years2 of 100 (Routine)
18 July 2026Lasal Mountain, USmonthly rain50.8 mm (2.0 in)12.7 mm (0.5 in)45 years44 of 100 (Notable)
18 May 2026Lasal Mountain, USdaily rain30.5 mm (1.2 in)2.6 mm (0.10 in)15 years11 of 100 (Routine)
1 April 2026Lasal Mountain, USdaily rain (Tie)35.6 mm (1.4 in)tie16 years2 of 100 (Routine)
2 January 2026Lasal Mountain, USdaily rain (Tie)25.4 mm (1.0 in)tie3 years1 of 100 (Routine)
30 November 2025Lasal Mountain, USdaily rain (Tie)22.9 mm (0.9 in)tie6 years1 of 100 (Routine)
16 November 2025Lasal Mountain, USdaily rain (Tie)17.8 mm (0.7 in)tie10 years1 of 100 (Routine)
14 October 2025Lasal Mountain, USdaily rain (Tie)15.2 mm (0.6 in)tie19 years2 of 100 (Routine)
3 April 2025Lasal Mountain, USdaily rain (Tie)17.8 mm (0.7 in)tie14 years2 of 100 (Routine)
6 March 2025Lasal Mountain, USdaily rain20.3 mm (0.8 in)5.1 mm (0.20 in)27 years18 of 100 (Routine)
14 February 2025Lasal Mountain, USdaily rain33.0 mm (1.3 in)10.1 mm (0.4 in)6 years18 of 100 (Routine)
26 November 2024Lasal Mountain, USmonthly rain (Tie)55.9 mm (2.2 in)tie9 years4 of 100 (Routine)
23 August 2024Lasal Mountain, USdaily rain22.9 mm (0.9 in)2.6 mm (0.10 in)12 years10 of 100 (Routine)
13 August 2024Lasal Mountain, USdaily rain25.4 mm (1.0 in)2.5 mm (0.10 in)23 years13 of 100 (Routine)
21 June 2024Lasal Mountain, USdaily rain22.9 mm (0.9 in)17.8 mm (0.7 in)5 years20 of 100 (Routine)
5 May 2024Lasal Mountain, USdaily rain25.4 mm (1.0 in)7.6 mm (0.30 in)17 years20 of 100 (Routine)
24 March 2024Lasal Mountain, USdaily rain20.3 mm (0.8 in)5.1 mm (0.20 in)41 years20 of 100 (Routine)
16 March 2024Lasal Mountain, USdaily rain22.9 mm (0.9 in)10.2 mm (0.4 in)38 years20 of 100 (Routine)
6 February 2024Lasal Mountain, USdaily rain (Tie)10.2 mm (0.4 in)tie18 years2 of 100 (Routine)

Climate Trend

20 complete years, 2003 to 2025
Annual mean temperature at Lasal Mountain as warming stripes, 2003 to 2025 One stripe for each of 20 complete years at Lasal Mountain, 2003 to 2025. Blue stripes are years cooler than the station's own mean of 4.6 C (40.2 F); red stripes are warmer. The coolest year was 2008, at 3.5 C (38.4 F), and the warmest was 2025, at 5.6 C (42.2 F). The strongest colour marks a difference of 1.1 C (2.0 F). 2003: 4.4 C, -0.2 C from the station mean2004: 3.8 C, -0.7 C from the station mean2005: 4.1 C, -0.5 C from the station mean2006: 4.1 C, -0.4 C from the station mean2007: 4.6 C, 0.0 C from the station mean2008: 3.5 C, -1.0 C from the station mean2009: 4.1 C, -0.5 C from the station mean2010: 3.9 C, -0.6 C from the station mean2011: 3.6 C, -1.0 C from the station mean2014: 4.6 C, 0.0 C from the station mean2015: 5.1 C, +0.5 C from the station mean2016: 4.9 C, +0.3 C from the station mean2017: 5.6 C, +1.0 C from the station mean2018: 5.2 C, +0.7 C from the station mean2019: 4.0 C, -0.6 C from the station mean2020: 5.4 C, +0.8 C from the station mean2022: 4.7 C, +0.1 C from the station mean2023: 4.6 C, 0.0 C from the station mean2024: 5.6 C, +1.1 C from the station mean2025: 5.6 C, +1.1 C from the station mean20032006200820102012201420162018202020222024
One stripe for each of 20 complete years at Lasal Mountain, 2003 to 2025. Blue stripes are years cooler than the station's own mean of 4.6 C (40.2 F); red stripes are warmer. The coolest year was 2008, at 3.5 C (38.4 F), and the warmest was 2025, at 5.6 C (42.2 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Lasal Mountain as warming stripes, 2003 to 2025
YearAnnual mean temperatureDifference from the station mean
20034.4 C-0.16 C
20043.8 C-0.74 C
20054.1 C-0.50 C
20064.1 C-0.45 C
20074.6 C+0.04 C
20083.5 C-1.05 C
20094.1 C-0.47 C
20103.9 C-0.64 C
20113.6 C-0.98 C
20144.6 C+0.02 C
20155.1 C+0.48 C
20164.9 C+0.33 C
20175.6 C+1.02 C
20185.2 C+0.65 C
20194.0 C-0.57 C
20205.4 C+0.84 C
20224.7 C+0.08 C
20234.6 C-0.03 C
20245.6 C+1.06 C
20255.6 C+1.06 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 Lasal Mountain: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)29.1 C (84.4 F)202027.1 C (80.8 F)25
Coldest night (TNn)-26.1 C (-15.0 F)2011-20.9 C (-5.6 F)25
Wettest day (Rx1day)68.6 mm (2.7 in)200640.6 mm (1.6 in)47
Wettest five days (Rx5day)139.8 mm (5.5 in)200677.5 mm (3.1 in)46
Longest dry spell (CDD)62 days199932 days47

Hottest day (TXx)

Hottest day (TXx) at Lasal Mountain by year The hottest day of the year at Lasal Mountain, 1980 to 2026. The record is 29.1 C (84.4 F) in 2020, marked on the chart; the median year is 27.1 C (80.8 F). 1520253019801990200020102020Record: 29.1 C (84.4 F) in 2020
The hottest day of the year at Lasal Mountain, 1980 to 2026. The record is 29.1 C (84.4 F) in 2020, marked on the chart; the median year is 27.1 C (80.8 F).
Hottest day (TXx) at Lasal Mountain by year
YearHottest day (TXx)
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
200218.3 C (64.9 F)
200328.3 C (82.9 F)
200425.9 C (78.6 F)
200527.8 C (82.0 F)
200626.8 C (80.2 F)
200727.1 C (80.8 F)
200826.1 C (79.0 F)
200926.1 C (79.0 F)
201027.7 C (81.9 F)
201125.4 C (77.7 F)
201227.2 C (81.0 F)
201328.2 C (82.8 F)
201427.0 C (80.6 F)
201526.9 C (80.4 F)
201627.8 C (82.0 F)
201727.3 C (81.1 F)
201827.6 C (81.7 F)
201926.5 C (79.7 F)
202029.1 C (84.4 F)
202124.7 C (76.5 F)
202226.8 C (80.2 F)
202329.0 C (84.2 F)
202427.1 C (80.8 F)
202528.4 C (83.1 F)
202627.3 C (81.1 F)

Coldest night (TNn)

Coldest night (TNn) at Lasal Mountain by year The coldest night of the year at Lasal Mountain, 1980 to 2026. The record is -26.1 C (-15.0 F) in 2011, marked on the chart; the median year is -20.9 C (-5.6 F). -27.5-25-22.5-20-17.519801990200020102020Record: -26.1 C (-15.0 F) in 2011
The coldest night of the year at Lasal Mountain, 1980 to 2026. The record is -26.1 C (-15.0 F) in 2011, marked on the chart; the median year is -20.9 C (-5.6 F).
Coldest night (TNn) at Lasal Mountain by year
YearColdest night (TNn)
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002-17.7 C (0.1 F)
2003-22.7 C (-8.9 F)
2004-22.7 C (-8.9 F)
2005-20.8 C (-5.4 F)
2006-21.8 C (-7.2 F)
2007-22.9 C (-9.2 F)
2008-24.6 C (-12.3 F)
2009-22.8 C (-9.0 F)
2010-24.8 C (-12.6 F)
2011-26.1 C (-15.0 F)
2012-19.0 C (-2.2 F)
2013-23.8 C (-10.8 F)
2014-19.7 C (-3.5 F)
2015-19.3 C (-2.7 F)
2016-20.9 C (-5.6 F)
2017-21.0 C (-5.8 F)
2018-20.7 C (-5.3 F)
2019-22.2 C (-8.0 F)
2020-22.4 C (-8.3 F)
2021-19.4 C (-2.9 F)
2022-20.7 C (-5.3 F)
2023-19.8 C (-3.6 F)
2024-19.2 C (-2.6 F)
2025-20.0 C (-4.0 F)
2026-19.0 C (-2.2 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Lasal Mountain by year The wettest day of the year at Lasal Mountain, 1980 to 2026. The record is 68.6 mm (2.7 in) in 2006, marked on the chart; the median year is 40.6 mm (1.6 in). 02040608019801990200020102020Record: 68.6 mm (2.7 in) in 2006
The wettest day of the year at Lasal Mountain, 1980 to 2026. The record is 68.6 mm (2.7 in) in 2006, marked on the chart; the median year is 40.6 mm (1.6 in).
Wettest day (Rx1day) at Lasal Mountain by year
YearWettest day (Rx1day)
19800.0 mm (0.00 in)
198143.2 mm (1.7 in)
198250.8 mm (2.0 in)
198355.9 mm (2.2 in)
198435.6 mm (1.4 in)
198555.9 mm (2.2 in)
198633.0 mm (1.3 in)
198750.8 mm (2.0 in)
198835.6 mm (1.4 in)
198935.6 mm (1.4 in)
199040.6 mm (1.6 in)
199138.1 mm (1.5 in)
199248.3 mm (1.9 in)
199343.2 mm (1.7 in)
199443.2 mm (1.7 in)
199538.1 mm (1.5 in)
199643.2 mm (1.7 in)
199755.9 mm (2.2 in)
199835.6 mm (1.4 in)
199935.6 mm (1.4 in)
200043.2 mm (1.7 in)
200135.6 mm (1.4 in)
200243.2 mm (1.7 in)
200327.9 mm (1.1 in)
200430.5 mm (1.2 in)
200525.4 mm (1.0 in)
200668.6 mm (2.7 in)
200748.3 mm (1.9 in)
200843.2 mm (1.7 in)
200925.4 mm (1.0 in)
201038.1 mm (1.5 in)
201138.1 mm (1.5 in)
201238.1 mm (1.5 in)
201338.1 mm (1.5 in)
201438.1 mm (1.5 in)
201555.9 mm (2.2 in)
201640.6 mm (1.6 in)
201735.6 mm (1.4 in)
201840.6 mm (1.6 in)
201961.0 mm (2.4 in)
202038.1 mm (1.5 in)
202148.3 mm (1.9 in)
202248.3 mm (1.9 in)
202333.0 mm (1.3 in)
202455.9 mm (2.2 in)
202533.0 mm (1.3 in)
202650.8 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Lasal Mountain by year The wettest five days of the year at Lasal Mountain, 1980 to 2026. The record is 139.8 mm (5.5 in) in 2006, marked on the chart; the median year is 77.5 mm (3.1 in). 25507510012515019801990200020102020Record: 139.8 mm (5.5 in) in 2006
The wettest five days of the year at Lasal Mountain, 1980 to 2026. The record is 139.8 mm (5.5 in) in 2006, marked on the chart; the median year is 77.5 mm (3.1 in).
Wettest five days (Rx5day) at Lasal Mountain by year
YearWettest five days (Rx5day)
1980n/a
198193.9 mm (3.7 in)
198288.9 mm (3.5 in)
198383.8 mm (3.3 in)
198476.3 mm (3.0 in)
1985109.2 mm (4.3 in)
198686.3 mm (3.4 in)
198776.2 mm (3.0 in)
198860.9 mm (2.4 in)
198963.5 mm (2.5 in)
199073.7 mm (2.9 in)
199160.9 mm (2.4 in)
1992106.7 mm (4.2 in)
199388.9 mm (3.5 in)
199478.7 mm (3.1 in)
199589.0 mm (3.5 in)
1996109.3 mm (4.3 in)
199771.1 mm (2.8 in)
199868.6 mm (2.7 in)
199966.0 mm (2.6 in)
2000129.6 mm (5.1 in)
200181.4 mm (3.2 in)
200281.3 mm (3.2 in)
200345.8 mm (1.8 in)
200460.9 mm (2.4 in)
200566.0 mm (2.6 in)
2006139.8 mm (5.5 in)
200763.5 mm (2.5 in)
200886.4 mm (3.4 in)
200943.2 mm (1.7 in)
201083.8 mm (3.3 in)
201158.5 mm (2.3 in)
201261.0 mm (2.4 in)
201386.4 mm (3.4 in)
201481.3 mm (3.2 in)
201591.4 mm (3.6 in)
201676.2 mm (3.0 in)
201766.0 mm (2.6 in)
201891.4 mm (3.6 in)
201994.0 mm (3.7 in)
202055.8 mm (2.2 in)
202176.1 mm (3.0 in)
202281.3 mm (3.2 in)
202366.0 mm (2.6 in)
202468.6 mm (2.7 in)
202568.5 mm (2.7 in)
2026124.4 mm (4.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Lasal Mountain by year The longest dry spell of the year at Lasal Mountain, 1980 to 2026. The record is 62 days in 1999, marked on the chart; the median year is 32 days. 02040608019801990200020102020Record: 62 days in 1999
The longest dry spell of the year at Lasal Mountain, 1980 to 2026. The record is 62 days in 1999, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Lasal Mountain by year
YearLongest dry spell (CDD)
19801 day
198117 days
198245 days
198324 days
198422 days
198528 days
198616 days
198723 days
198834 days
198955 days
199025 days
199123 days
199233 days
199340 days
199448 days
199520 days
199630 days
199734 days
199818 days
199962 days
200031 days
200124 days
200232 days
200331 days
200418 days
200519 days
200639 days
200728 days
200828 days
200918 days
201023 days
201125 days
201239 days
201343 days
201440 days
201543 days
201642 days
201739 days
201844 days
201933 days
202043 days
202132 days
202253 days
202346 days
202445 days
202551 days
202631 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

20 years with a frost

Across 20 years with a frost, the median last spring frost at Lasal Mountain falls on 10 June and the median first autumn frost on 24 September, which leaves a median of 109 days between them.

Frost dates and growing season at Lasal Mountain
MeasureMedian, all yearsEarliest periodRecent period (2003 to 2025)Recent against earliestFitted trend
Last spring frost10 Junen/a10 Junen/an/a
First autumn frost24 Septembern/a24 Septembern/an/a
Growing days109 daysn/a109 daysn/an/a

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, 1982 to 2025

A day with at least 40.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 71.4 mm (2.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Lasal Mountain: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years40.5 mm (1.6 in)
5 years49.2 mm (1.9 in)
10 years54.8 mm (2.2 in)
25 years61.6 mm (2.4 in)
50 years66.6 mm (2.6 in)Longer than the 44 years of record
100 years71.4 mm (2.8 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 1982 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: 68.6 mm (2.7 in) in 2006; 61.0 mm (2.4 in) in 2019; 55.9 mm (2.2 in) in 1983.

Download the Data

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