Built 2026-10-18 (18 October 2026)

Mc Clure Pass Weather Records (USS0007K09S)

Record envelope, standing records and threshold days for Mc Clure Pass (USS0007K09S), Colorado, United States, with 47 years of record.

Key Facts for Mc Clure Pass

  • Mc Clure Pass (USS0007K09S) is a weather station in Colorado, United States at 39.13 latitude and -107.29 longitude, 2,896 m (9,500 ft) above sea level.
  • The station reports from 1980 to 2026, 47 years of record.
  • 1,464 records set at Mc Clure Pass still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Mc Clure Pass set a daily record precipitation of 27.9 mm (1.1 in) on 14 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Colorado, United States, 39.13 latitude, -107.29 longitude.
  • Elevation: 2,896 m (9,500 ft).
  • Period of record: 1980 to 2026, 47 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

33 days at or beyond a record
Daily record high and record low at Mc Clure Pass, with 2026 drawn through them The band shows the record high and record low for each calendar day at Mc Clure Pass. The lines show the 2026 daily maximum and minimum. 33 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 Mc Clure Pass. The lines show the 2026 daily maximum and minimum. 33 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Mc Clure Pass, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.8 C (55.0 F)-24.8 C (-12.6 F)7.6 C (45.7 F)-20.6 C (-5.1 F)
Feb17.1 C (62.8 F)-28.7 C (-19.7 F)10.7 C (51.3 F)-17.4 C (0.7 F)
Mar21.8 C (71.2 F)-24.4 C (-11.9 F)21.8 C (71.2 F)-10.1 C (13.8 F)
Apr21.7 C (71.1 F)-15.7 C (3.7 F)18.3 C (64.9 F)-10.8 C (12.6 F)
May26.9 C (80.4 F)-9.9 C (14.2 F)24.8 C (76.6 F)-4.9 C (23.2 F)
Jun30.0 C (86.0 F)-6.7 C (19.9 F)26.2 C (79.2 F)3.7 C (38.7 F)
Jul31.8 C (89.2 F)-1.8 C (28.8 F)30.0 C (86.0 F)4.5 C (40.1 F)
Aug40.1 C (104.2 F)-2.4 C (27.7 F)30.0 C (86.0 F)6.6 C (43.9 F)
Sep34.6 C (94.3 F)-10.4 C (13.3 F)24.9 C (76.8 F)2.8 C (37.0 F)
Oct23.6 C (74.5 F)-19.5 C (-3.1 F)21.7 C (71.1 F)5.1 C (41.2 F)
Nov19.6 C (67.3 F)-23.2 C (-9.8 F)n/an/a
Dec19.6 C (67.3 F)-31.2 C (-24.2 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Mc Clure Pass by the year they were set 1,464 records at Mc Clure Pass still stand. 1991 holds the most, with 89. 02550751001985: 21986: 321987: 201988: 321989: 441990: 461991: 891992: 421993: 391994: 171995: 261996: 431997: 151998: 171999: 282000: 352001: 282002: 262003: 422004: 292005: 392006: 402007: 282008: 242009: 252010: 352011: 262012: 682013: 442014: 332015: 202016: 222017: 542018: 432019: 222020: 652021: 452022: 232023: 272024: 212025: 472026: 61198519901995200020052010201520202025
1,464 records at Mc Clure Pass still stand. 1991 holds the most, with 89.
Standing records at Mc Clure Pass by the year they were set
Year setStanding records
19852
198632
198720
198832
198944
199046
199189
199242
199339
199417
199526
199643
199715
199817
199928
200035
200128
200226
200342
200429
200539
200640
200728
200824
200925
201035
201126
201268
201344
201433
201520
201622
201754
201843
201922
202065
202145
202223
202327
202421
202547
202661

Wettest Day of Each Month

Oct: 63.5 mm (2.5 in)
Record daily precipitation for each month at Mc Clure Pass The wettest day on record for each calendar month at Mc Clure Pass. The most was 63.5 mm (2.5 in) on 4 October 1981. 020406080 Jan: 35.6 mm (1.4 in), 10 January 1997 Jan Feb: 40.6 mm (1.6 in), 21 February 1996 Feb Mar: 48.3 mm (1.9 in), 19 March 2002 Mar Apr: 43.2 mm (1.7 in), 20 April 1985 Apr May: 40.6 mm (1.6 in), 26 May 1992 May Jun: 43.2 mm (1.7 in), 6 June 1984 Jun Jul: 45.7 mm (1.8 in), 6 July 2012 Jul Aug: 50.8 mm (2.0 in), 19 August 2021 Aug Sep: 53.3 mm (2.1 in), 23 September 2007 Sep Oct: 63.5 mm (2.5 in), 4 October 1981 Oct Nov: 45.7 mm (1.8 in), 28 November 2006 Nov Dec: 45.7 mm (1.8 in), 16 December 2016 Dec
The wettest day on record for each calendar month at Mc Clure Pass. The most was 63.5 mm (2.5 in) on 4 October 1981.
Record daily precipitation for each month at Mc Clure Pass
MonthRecord daily precipitation (mm)Date
Jan35.6 mm (1.4 in)10 January 1997
Feb40.6 mm (1.6 in)21 February 1996
Mar48.3 mm (1.9 in)19 March 2002
Apr43.2 mm (1.7 in)20 April 1985
May40.6 mm (1.6 in)26 May 1992
Jun43.2 mm (1.7 in)6 June 1984
Jul45.7 mm (1.8 in)6 July 2012
Aug50.8 mm (2.0 in)19 August 2021
Sep53.3 mm (2.1 in)23 September 2007
Oct63.5 mm (2.5 in)4 October 1981
Nov45.7 mm (1.8 in)28 November 2006
Dec45.7 mm (1.8 in)16 December 2016

Period of Record Coverage

1985 to 2026
Days with data per year at Mc Clure Pass 42 years of record at Mc Clure Pass, 1985 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1985, 2008, 2012, 2014, 2015, 2016, 2017, 2026. 1985: 26 of 365 days1986: 353 of 365 days1987: 362 of 365 days1988: 354 of 366 days1989: 350 of 365 days1990: 359 of 365 days1991: 362 of 365 days1992: 361 of 366 days1993: 354 of 365 days1994: 357 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 364 of 365 days1998: 364 of 365 days1999: 363 of 365 days2000: 351 of 366 days2001: 365 of 365 days2002: 362 of 365 days2003: 364 of 365 days2004: 363 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 319 of 366 days2009: 364 of 365 days2010: 352 of 365 days2011: 364 of 365 days2012: 306 of 366 days2013: 365 of 365 days2014: 283 of 365 days2015: 100 of 365 days2016: 203 of 366 days2017: 317 of 365 days2018: 337 of 365 days2019: 349 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 363 of 365 days2023: 365 of 365 days2024: 365 of 366 days2025: 361 of 365 days2026: 270 of 365 days1990200020102020
42 years of record at Mc Clure Pass, 1985 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1985, 2008, 2012, 2014, 2015, 2016, 2017, 2026.
Days with data per year at Mc Clure Pass
YearDays with dataShare of yearComplete
1985267%No
198635397%Yes
198736299%Yes
198835497%Yes
198935096%Yes
199035998%Yes
199136299%Yes
199236199%Yes
199335497%Yes
199435798%Yes
1995364100%Yes
1996366100%Yes
1997364100%Yes
1998364100%Yes
199936399%Yes
200035196%Yes
2001365100%Yes
200236299%Yes
2003364100%Yes
200436399%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
200831987%No
2009364100%Yes
201035296%Yes
2011364100%Yes
201230684%No
2013365100%Yes
201428378%No
201510027%No
201620355%No
201731787%No
201833792%Yes
201934996%Yes
2020366100%Yes
2021365100%Yes
202236399%Yes
2023365100%Yes
2024365100%Yes
202536199%Yes
202627074%No

Latest Records

20
Latest records at Mc Clure Pass
DateStationRecordValueBeat old record byOld record stoodSignificance
14 September 2026Mc Clure Pass, USdaily rain (Provisional)27.9 mm (1.1 in)5.0 mm (0.20 in)44 years23 of 100 (Routine)
12 September 2026Mc Clure Pass, USdaily high min (Provisional)9.9 C (49.8 F)0.4 C (0.7 F)8 years7 of 100 (Routine)
31 August 2026Mc Clure Pass, USdaily rain (Tie, Provisional)7.6 mm (0.30 in)tie28 years3 of 100 (Routine)
30 August 2026Mc Clure Pass, USdaily rain (Tie, Provisional)7.6 mm (0.30 in)tie16 years2 of 100 (Routine)
21 August 2026Mc Clure Pass, USdaily high max (Provisional)28.9 C (84.0 F)1.4 C (2.5 F)5 years8 of 100 (Routine)
20 August 2026Mc Clure Pass, USdaily high max (Provisional)29.6 C (85.3 F)0.4 C (0.7 F)12 years8 of 100 (Routine)
9 August 2026Mc Clure Pass, USdaily high min13.7 C (56.7 F)0.6 C (1.1 F)25 years13 of 100 (Routine)
8 August 2026Mc Clure Pass, USdaily high max29.4 C (84.9 F)2.1 C (3.8 F)25 years16 of 100 (Routine)
8 August 2026Mc Clure Pass, USdaily high min13.9 C (57.0 F)0.7 C (1.3 F)0 years6 of 100 (Routine)
7 August 2026Mc Clure Pass, USdaily high max30.0 C (86.0 F)3.0 C (5.4 F)0 years12 of 100 (Routine)
6 August 2026Mc Clure Pass, USdaily high max28.8 C (83.8 F)1.0 C (1.8 F)23 years12 of 100 (Routine)
5 August 2026Mc Clure Pass, USdaily high max28.1 C (82.6 F)0.7 C (1.3 F)23 years11 of 100 (Routine)
4 August 2026Mc Clure Pass, USdaily high max28.5 C (83.3 F)1.5 C (2.7 F)5 years9 of 100 (Routine)
4 August 2026Mc Clure Pass, USdaily high min (Tie)13.6 C (56.5 F)tie5 years1 of 100 (Routine)
3 August 2026Mc Clure Pass, USdaily high min14.5 C (58.1 F)1.5 C (2.7 F)5 years11 of 100 (Routine)
2 August 2026Mc Clure Pass, USmonthly high min15.1 C (59.2 F)0.7 C (1.3 F)3 years17 of 100 (Routine)
1 August 2026Mc Clure Pass, USdaily high max29.3 C (84.7 F)1.0 C (1.8 F)5 years7 of 100 (Routine)
27 July 2026Mc Clure Pass, USdaily high max27.3 C (81.1 F)0.3 C (0.5 F)9 years6 of 100 (Routine)
26 July 2026Mc Clure Pass, USdaily high min14.4 C (57.9 F)2.5 C (4.5 F)17 years18 of 100 (Routine)
26 July 2026Mc Clure Pass, USdaily high max (Tie)29.0 C (84.2 F)tie23 years2 of 100 (Routine)

Climate Trend

35 complete years, 1986 to 2025
Annual mean temperature at Mc Clure Pass as warming stripes, 1986 to 2025 One stripe for each of 35 complete years at Mc Clure Pass, 1986 to 2025. Blue stripes are years cooler than the station's own mean of 4.9 C (40.8 F); red stripes are warmer. The coolest year was 1991, at 0.8 C (33.5 F), and the warmest was 2017, at 7.1 C (44.7 F). The strongest colour marks a difference of 4.1 C (7.4 F). 1986: 4.2 C, -0.7 C from the station mean1987: 4.2 C, -0.7 C from the station mean1988: 4.0 C, -0.9 C from the station mean1989: 3.9 C, -1.0 C from the station mean1990: 3.6 C, -1.3 C from the station mean1991: 0.8 C, -4.1 C from the station mean1992: 2.8 C, -2.1 C from the station mean1993: 2.8 C, -2.1 C from the station mean1994: 5.0 C, +0.1 C from the station mean1995: 4.7 C, -0.2 C from the station mean1996: 4.8 C, -0.1 C from the station mean1997: 4.4 C, -0.5 C from the station mean1998: 4.9 C, 0.0 C from the station mean1999: 5.2 C, +0.3 C from the station mean2000: 5.5 C, +0.6 C from the station mean2001: 5.6 C, +0.7 C from the station mean2002: 5.0 C, +0.1 C from the station mean2003: 5.7 C, +0.8 C from the station mean2004: 5.0 C, +0.1 C from the station mean2005: 5.3 C, +0.4 C from the station mean2006: 5.1 C, +0.2 C from the station mean2007: 5.7 C, +0.8 C from the station mean2009: 5.0 C, +0.1 C from the station mean2010: 5.4 C, +0.5 C from the station mean2011: 4.7 C, -0.2 C from the station mean2013: 4.8 C, -0.1 C from the station mean2017: 7.1 C, +2.2 C from the station mean2018: 6.5 C, +1.6 C from the station mean2019: 5.3 C, +0.5 C from the station mean2020: 6.3 C, +1.4 C from the station mean2021: 6.1 C, +1.2 C from the station mean2022: 5.2 C, +0.3 C from the station mean2023: 4.9 C, 0.0 C from the station mean2024: 5.7 C, +0.8 C from the station mean2025: 6.2 C, +1.3 C from the station mean198619901995200020052010201520202025
One stripe for each of 35 complete years at Mc Clure Pass, 1986 to 2025. Blue stripes are years cooler than the station's own mean of 4.9 C (40.8 F); red stripes are warmer. The coolest year was 1991, at 0.8 C (33.5 F), and the warmest was 2017, at 7.1 C (44.7 F). The strongest colour marks a difference of 4.1 C (7.4 F).
Annual mean temperature at Mc Clure Pass as warming stripes, 1986 to 2025
YearAnnual mean temperatureDifference from the station mean
19864.2 C-0.68 C
19874.2 C-0.70 C
19884.0 C-0.91 C
19893.9 C-1.02 C
19903.6 C-1.32 C
19910.8 C-4.07 C
19922.8 C-2.06 C
19932.8 C-2.09 C
19945.0 C+0.08 C
19954.7 C-0.21 C
19964.8 C-0.13 C
19974.4 C-0.50 C
19984.9 C-0.01 C
19995.2 C+0.27 C
20005.5 C+0.61 C
20015.6 C+0.71 C
20025.0 C+0.10 C
20035.7 C+0.84 C
20045.0 C+0.08 C
20055.3 C+0.39 C
20065.1 C+0.19 C
20075.7 C+0.85 C
20095.0 C+0.09 C
20105.4 C+0.47 C
20114.7 C-0.20 C
20134.8 C-0.10 C
20177.1 C+2.18 C
20186.5 C+1.60 C
20195.3 C+0.46 C
20206.3 C+1.38 C
20216.1 C+1.21 C
20225.2 C+0.35 C
20234.9 C+0.05 C
20245.7 C+0.82 C
20256.2 C+1.31 C

The annual mean temperature here has risen by 0.7 C (0.4 to 0.9) per decade over 1986 to 2025. In Fahrenheit: 1.2 F (0.7 to 1.6) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Mc Clure Pass
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.7 C (0.4 to 0.9) per decade1.2 F (0.7 to 1.6) per decade1986 to 202535Rise
Mean daily maximum0.8 C (0.5 to 1.0) per decade1.4 F (0.9 to 1.9) per decade1986 to 202535Rise
Mean daily minimum0.6 C (0.3 to 0.8) per decade1.0 F (0.6 to 1.4) per decade1986 to 202535Rise

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 Mc Clure Pass: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.1 C (104.2 F)201228.2 C (82.7 F)42
Coldest night (TNn)-31.2 C (-24.2 F)1990-22.0 C (-7.6 F)42
Wettest day (Rx1day)63.5 mm (2.5 in)198135.6 mm (1.4 in)47
Wettest five days (Rx5day)106.8 mm (4.2 in)198468.6 mm (2.7 in)47
Longest dry spell (CDD)70 days198923 days47

Hottest day (TXx)

Hottest day (TXx) at Mc Clure Pass by year The hottest day of the year at Mc Clure Pass, 1980 to 2026. The record is 40.1 C (104.2 F) in 2012, marked on the chart; the median year is 28.2 C (82.7 F). 0102030405019801990200020102020Record: 40.1 C (104.2 F) in 2012
The hottest day of the year at Mc Clure Pass, 1980 to 2026. The record is 40.1 C (104.2 F) in 2012, marked on the chart; the median year is 28.2 C (82.7 F).
Hottest day (TXx) at Mc Clure Pass by year
YearHottest day (TXx)
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
19856.7 C (44.1 F)
198627.1 C (80.8 F)
198727.8 C (82.0 F)
198825.5 C (77.9 F)
198928.0 C (82.4 F)
199027.9 C (82.2 F)
199122.4 C (72.3 F)
199224.0 C (75.2 F)
199324.7 C (76.5 F)
199427.5 C (81.5 F)
199527.3 C (81.1 F)
199627.8 C (82.0 F)
199726.4 C (79.5 F)
199827.9 C (82.2 F)
199925.9 C (78.6 F)
200028.1 C (82.6 F)
200128.2 C (82.8 F)
200229.3 C (84.7 F)
200330.1 C (86.2 F)
200427.8 C (82.0 F)
200529.4 C (84.9 F)
200628.4 C (83.1 F)
200728.9 C (84.0 F)
200838.4 C (101.1 F)
200927.5 C (81.5 F)
201028.8 C (83.8 F)
201127.3 C (81.1 F)
201240.1 C (104.2 F)
201328.9 C (84.0 F)
201430.6 C (87.1 F)
201528.8 C (83.8 F)
201627.6 C (81.7 F)
201728.6 C (83.5 F)
201831.8 C (89.2 F)
201928.4 C (83.1 F)
202031.6 C (88.9 F)
202130.0 C (86.0 F)
202228.8 C (83.8 F)
202328.7 C (83.7 F)
202427.6 C (81.7 F)
202530.8 C (87.4 F)
202630.0 C (86.0 F)

Coldest night (TNn)

Coldest night (TNn) at Mc Clure Pass by year The coldest night of the year at Mc Clure Pass, 1980 to 2026. The record is -31.2 C (-24.2 F) in 1990, marked on the chart; the median year is -22.0 C (-7.6 F). -35-30-25-20-1519801990200020102020Record: -31.2 C (-24.2 F) in 1990
The coldest night of the year at Mc Clure Pass, 1980 to 2026. The record is -31.2 C (-24.2 F) in 1990, marked on the chart; the median year is -22.0 C (-7.6 F).
Coldest night (TNn) at Mc Clure Pass by year
YearColdest night (TNn)
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985-21.0 C (-5.8 F)
1986-23.4 C (-10.1 F)
1987-21.3 C (-6.3 F)
1988-22.8 C (-9.0 F)
1989-28.7 C (-19.7 F)
1990-31.2 C (-24.2 F)
1991-23.2 C (-9.8 F)
1992-20.7 C (-5.3 F)
1993-21.4 C (-6.5 F)
1994-23.9 C (-11.0 F)
1995-19.9 C (-3.8 F)
1996-27.6 C (-17.7 F)
1997-19.1 C (-2.4 F)
1998-21.3 C (-6.3 F)
1999-18.8 C (-1.8 F)
2000-19.8 C (-3.6 F)
2001-19.9 C (-3.8 F)
2002-24.4 C (-11.9 F)
2003-22.3 C (-8.1 F)
2004-21.8 C (-7.2 F)
2005-22.6 C (-8.7 F)
2006-22.5 C (-8.5 F)
2007-23.5 C (-10.3 F)
2008-23.4 C (-10.1 F)
2009-22.1 C (-7.8 F)
2010-24.0 C (-11.2 F)
2011-28.0 C (-18.4 F)
2012-20.6 C (-5.1 F)
2013-24.7 C (-12.5 F)
2014-18.4 C (-1.1 F)
2015-17.7 C (0.1 F)
2016-23.8 C (-10.8 F)
2017-21.9 C (-7.4 F)
2018-17.8 C (0.0 F)
2019-20.2 C (-4.4 F)
2020-23.0 C (-9.4 F)
2021-18.7 C (-1.7 F)
2022-21.9 C (-7.4 F)
2023-22.7 C (-8.9 F)
2024-18.9 C (-2.0 F)
2025-24.4 C (-11.9 F)
2026-20.6 C (-5.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Mc Clure Pass by year The wettest day of the year at Mc Clure Pass, 1980 to 2026. The record is 63.5 mm (2.5 in) in 1981, marked on the chart; the median year is 35.6 mm (1.4 in). 02040608019801990200020102020Record: 63.5 mm (2.5 in) in 1981
The wettest day of the year at Mc Clure Pass, 1980 to 2026. The record is 63.5 mm (2.5 in) in 1981, marked on the chart; the median year is 35.6 mm (1.4 in).
Wettest day (Rx1day) at Mc Clure Pass by year
YearWettest day (Rx1day)
198025.4 mm (1.0 in)
198163.5 mm (2.5 in)
198235.6 mm (1.4 in)
198333.0 mm (1.3 in)
198443.2 mm (1.7 in)
198545.7 mm (1.8 in)
198633.0 mm (1.3 in)
198725.4 mm (1.0 in)
198833.0 mm (1.3 in)
198938.1 mm (1.5 in)
199038.1 mm (1.5 in)
199127.9 mm (1.1 in)
199240.6 mm (1.6 in)
199330.5 mm (1.2 in)
199425.4 mm (1.0 in)
199538.1 mm (1.5 in)
199643.2 mm (1.7 in)
199735.6 mm (1.4 in)
199822.9 mm (0.9 in)
199917.8 mm (0.7 in)
200035.6 mm (1.4 in)
200122.9 mm (0.9 in)
200248.3 mm (1.9 in)
200333.0 mm (1.3 in)
200430.5 mm (1.2 in)
200535.6 mm (1.4 in)
200645.7 mm (1.8 in)
200753.3 mm (2.1 in)
200833.0 mm (1.3 in)
200927.9 mm (1.1 in)
201030.5 mm (1.2 in)
201135.6 mm (1.4 in)
201245.7 mm (1.8 in)
201338.1 mm (1.5 in)
201427.9 mm (1.1 in)
201522.9 mm (0.9 in)
201645.7 mm (1.8 in)
201730.5 mm (1.2 in)
201827.9 mm (1.1 in)
201935.6 mm (1.4 in)
202022.9 mm (0.9 in)
202150.8 mm (2.0 in)
202243.2 mm (1.7 in)
202335.6 mm (1.4 in)
202430.5 mm (1.2 in)
202533.0 mm (1.3 in)
202638.1 mm (1.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Mc Clure Pass by year The wettest five days of the year at Mc Clure Pass, 1980 to 2026. The record is 106.8 mm (4.2 in) in 1984, marked on the chart; the median year is 68.6 mm (2.7 in). 40608010012019801990200020102020Record: 106.8 mm (4.2 in) in 1984
The wettest five days of the year at Mc Clure Pass, 1980 to 2026. The record is 106.8 mm (4.2 in) in 1984, marked on the chart; the median year is 68.6 mm (2.7 in).
Wettest five days (Rx5day) at Mc Clure Pass by year
YearWettest five days (Rx5day)
198055.8 mm (2.2 in)
198171.1 mm (2.8 in)
198261.0 mm (2.4 in)
198378.8 mm (3.1 in)
1984106.8 mm (4.2 in)
198578.7 mm (3.1 in)
198671.1 mm (2.8 in)
198740.6 mm (1.6 in)
198871.1 mm (2.8 in)
198958.4 mm (2.3 in)
199043.2 mm (1.7 in)
199155.8 mm (2.2 in)
199291.4 mm (3.6 in)
199386.4 mm (3.4 in)
199468.5 mm (2.7 in)
1995101.7 mm (4.0 in)
199694.0 mm (3.7 in)
199768.6 mm (2.7 in)
199858.4 mm (2.3 in)
199963.4 mm (2.5 in)
200063.5 mm (2.5 in)
200150.8 mm (2.0 in)
200268.6 mm (2.7 in)
200355.9 mm (2.2 in)
200473.6 mm (2.9 in)
200583.9 mm (3.3 in)
200671.0 mm (2.8 in)
200783.8 mm (3.3 in)
200881.3 mm (3.2 in)
200955.9 mm (2.2 in)
201091.5 mm (3.6 in)
201150.9 mm (2.0 in)
201281.2 mm (3.2 in)
201353.3 mm (2.1 in)
201458.5 mm (2.3 in)
201555.9 mm (2.2 in)
201658.4 mm (2.3 in)
201776.2 mm (3.0 in)
201853.3 mm (2.1 in)
2019101.6 mm (4.0 in)
202043.1 mm (1.7 in)
202176.2 mm (3.0 in)
202268.6 mm (2.7 in)
202358.4 mm (2.3 in)
202466.0 mm (2.6 in)
202571.0 mm (2.8 in)
202673.7 mm (2.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Mc Clure Pass by year The longest dry spell of the year at Mc Clure Pass, 1980 to 2026. The record is 70 days in 1989, marked on the chart; the median year is 23 days. 02040608019801990200020102020Record: 70 days in 1989
The longest dry spell of the year at Mc Clure Pass, 1980 to 2026. The record is 70 days in 1989, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Mc Clure Pass by year
YearLongest dry spell (CDD)
198019 days
198124 days
198234 days
198324 days
198428 days
198518 days
198614 days
198722 days
198826 days
198970 days
199020 days
199123 days
199223 days
199321 days
199425 days
199517 days
199632 days
199723 days
199816 days
199957 days
200027 days
200119 days
200223 days
200320 days
200453 days
200520 days
200618 days
200730 days
200823 days
200922 days
201027 days
201123 days
201241 days
201326 days
201425 days
201516 days
201614 days
201736 days
201842 days
201923 days
202040 days
202134 days
202217 days
202316 days
202427 days
202538 days
202636 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

35 years with a frost

Across 35 years with a frost, the median last spring frost at Mc Clure Pass falls on 1 June and the median first autumn frost on 21 September, which leaves a median of 110 days between them.

Fitted over all years, the growing season changes by +15.7 days per decade at this station.

Frost dates and growing season at Mc Clure Pass
MeasureMedian, all yearsEarliest periodRecent period (1991 to 2025)Recent against earliestFitted trend
Last spring frost1 Junen/a31 Mayn/a-4.4 days per decade
First autumn frost21 Septembern/a22 Septembern/a+11.3 days per decade
Growing days110 daysn/a113 daysn/a+15.7 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

45 years, 1981 to 2025

A day with at least 34.3 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 61.4 mm (2.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Mc Clure Pass: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years34.3 mm (1.4 in)
5 years42.6 mm (1.7 in)
10 years47.7 mm (1.9 in)
25 years53.6 mm (2.1 in)
50 years57.6 mm (2.3 in)Longer than the 45 years of record
100 years61.4 mm (2.4 in)Longer than the 45 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, 45 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: 63.5 mm (2.5 in) in 1981; 53.3 mm (2.1 in) in 2007; 50.8 mm (2.0 in) in 2021.

Download the Data

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