Built 2026-10-19 (19 October 2026)

Moses Mtn Weather Records (USS0019A13S)

Record envelope, standing records and threshold days for Moses Mtn (USS0019A13S), Washington, United States, with 36 years of record.

Key Facts for Moses Mtn

  • Moses Mtn (USS0019A13S) is a weather station in Washington, United States at 48.36 latitude and -119.08 longitude, 1,527 m (5,010 ft) above sea level.
  • The station reports from 1991 to 2026, 36 years of record.
  • 1,464 records set at Moses Mtn still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Moses Mtn set a daily record precipitation of 22.9 mm (0.9 in) on 13 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, 48.36 latitude, -119.08 longitude.
  • Elevation: 1,527 m (5,010 ft).
  • Period of record: 1991 to 2026, 36 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

10 days at or beyond a record
Daily record high and record low at Moses Mtn, with 2026 drawn through them The band shows the record high and record low for each calendar day at Moses Mtn. The lines show the 2026 daily maximum and minimum. 10 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 Moses Mtn. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Moses Mtn, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.2 C (54.0 F)-30.7 C (-23.3 F)12.2 C (54.0 F)-10.8 C (12.6 F)
Feb12.0 C (53.6 F)-24.0 C (-11.2 F)12.0 C (53.6 F)-15.1 C (4.8 F)
Mar17.5 C (63.5 F)-22.8 C (-9.0 F)11.2 C (52.2 F)-8.3 C (17.1 F)
Apr22.1 C (71.8 F)-14.0 C (6.8 F)17.9 C (64.2 F)-5.5 C (22.1 F)
May25.8 C (78.4 F)-13.3 C (8.1 F)24.0 C (75.2 F)-1.2 C (29.8 F)
Jun32.2 C (90.0 F)-3.3 C (26.1 F)23.6 C (74.5 F)1.2 C (34.2 F)
Jul34.5 C (94.1 F)-0.7 C (30.7 F)27.6 C (81.7 F)6.7 C (44.1 F)
Aug34.3 C (93.7 F)-2.2 C (28.0 F)27.4 C (81.3 F)3.1 C (37.6 F)
Sep29.8 C (85.6 F)-4.6 C (23.7 F)20.4 C (68.7 F)1.5 C (34.7 F)
Oct24.3 C (75.7 F)-16.7 C (1.9 F)10.6 C (51.1 F)5.2 C (41.4 F)
Nov12.2 C (54.0 F)-24.0 C (-11.2 F)n/an/a
Dec12.6 C (54.7 F)-27.5 C (-17.5 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Moses Mtn by the year they were set 1,464 records at Moses Mtn still stand. 1996 holds the most, with 105. 0501001501991: 101992: 641993: 21994: 481995: 451996: 1051997: 381998: 401999: 702000: 402001: 462002: 582003: 512004: 452005: 552006: 302007: 122008: 552009: 332010: 282011: 272012: 212013: 442014: 442015: 412016: 412017: 302018: 282019: 362020: 312021: 322022: 632023: 302024: 532025: 442026: 24199119951999200320072011201520192023
1,464 records at Moses Mtn still stand. 1996 holds the most, with 105.
Standing records at Moses Mtn by the year they were set
Year setStanding records
199110
199264
19932
199448
199545
1996105
199738
199840
199970
200040
200146
200258
200351
200445
200555
200630
200712
200855
200933
201028
201127
201221
201344
201444
201541
201641
201730
201828
201936
202031
202132
202263
202330
202453
202544
202624

All-Time Record Progression

1 new records
When Moses Mtn set new all-time records 1 all-time records were set at Moses Mtn between 12 January 2024 and 12 January 2024. Each dot is a new record. Record low minimum temperature12 January 2024: Record low minimum temperature -30.7 C (-23.3 F)2025
1 all-time records were set at Moses Mtn between 12 January 2024 and 12 January 2024. Each dot is a new record.
When Moses Mtn set new all-time records
DateKindDetail
2024-01-12Record low minimum temperatureRecord low minimum temperature -30.7 C (-23.3 F)

Wettest Day of Each Month

Jul: 71.1 mm (2.8 in)
Record daily precipitation for each month at Moses Mtn The wettest day on record for each calendar month at Moses Mtn. The most was 71.1 mm (2.8 in) on 15 July 2012. 020406080 Jan: 38.1 mm (1.5 in), 4 January 2008 Jan Feb: 50.8 mm (2.0 in), 18 February 1994 Feb Mar: 48.3 mm (1.9 in), 12 March 2012 Mar Apr: 40.6 mm (1.6 in), 26 April 2012 Apr May: 43.2 mm (1.7 in), 27 May 2010 May Jun: 35.6 mm (1.4 in), 13 June 2020 Jun Jul: 71.1 mm (2.8 in), 15 July 2012 Jul Aug: 40.6 mm (1.6 in), 24 August 2022 Aug Sep: 38.1 mm (1.5 in), 8 September 2019 Sep Oct: 40.6 mm (1.6 in), 22 October 2014 Oct Nov: 53.3 mm (2.1 in), 20 November 2024 Nov Dec: 53.3 mm (2.1 in), 1 December 1998 Dec
The wettest day on record for each calendar month at Moses Mtn. The most was 71.1 mm (2.8 in) on 15 July 2012.
Record daily precipitation for each month at Moses Mtn
MonthRecord daily precipitation (mm)Date
Jan38.1 mm (1.5 in)4 January 2008
Feb50.8 mm (2.0 in)18 February 1994
Mar48.3 mm (1.9 in)12 March 2012
Apr40.6 mm (1.6 in)26 April 2012
May43.2 mm (1.7 in)27 May 2010
Jun35.6 mm (1.4 in)13 June 2020
Jul71.1 mm (2.8 in)15 July 2012
Aug40.6 mm (1.6 in)24 August 2022
Sep38.1 mm (1.5 in)8 September 2019
Oct40.6 mm (1.6 in)22 October 2014
Nov53.3 mm (2.1 in)20 November 2024
Dec53.3 mm (2.1 in)1 December 1998

Period of Record Coverage

1991 to 2026
Days with data per year at Moses Mtn 36 years of record at Moses Mtn, 1991 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1991, 1992, 1993, 2021, 2026. 1991: 66 of 365 days1992: 262 of 366 days1993: 31 of 365 days1994: 341 of 365 days1995: 365 of 365 days1996: 366 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: 365 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 364 of 365 days2015: 364 of 365 days2016: 366 of 366 days2017: 363 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 283 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 365 of 366 days2025: 360 of 365 days2026: 274 of 365 days1995200020052010201520202025
36 years of record at Moses Mtn, 1991 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1991, 1992, 1993, 2021, 2026.
Days with data per year at Moses Mtn
YearDays with dataShare of yearComplete
19916618%No
199226272%No
1993318%No
199434193%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998364100%Yes
1999364100%Yes
2000365100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004365100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014364100%Yes
2015364100%Yes
2016366100%Yes
201736399%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
202128378%No
2022365100%Yes
2023365100%Yes
2024365100%Yes
202536099%Yes
202627475%No

Latest Records

20
Latest records at Moses Mtn
DateStationRecordValueBeat old record byOld record stoodSignificance
13 September 2026Moses Mtn, USdaily rain (Provisional)22.9 mm (0.9 in)20.4 mm (0.8 in)13 years20 of 100 (Routine)
5 September 2026Moses Mtn, USdaily rain (Provisional)10.2 mm (0.4 in)5.1 mm (0.20 in)16 years16 of 100 (Routine)
3 September 2026Moses Mtn, USdaily rain (Provisional)20.3 mm (0.8 in)15.2 mm (0.6 in)16 years20 of 100 (Routine)
29 August 2026Moses Mtn, USdaily rain (Provisional)17.8 mm (0.7 in)7.6 mm (0.30 in)11 years20 of 100 (Routine)
29 August 2026Moses Mtn, USdaily low max (Provisional)11.6 C (52.9 F)1.8 C (3.2 F)16 years10 of 100 (Routine)
29 August 2026Moses Mtn, USdaily low min (Provisional)3.1 C (37.6 F)0.6 C (1.1 F)16 years8 of 100 (Routine)
21 August 2026Moses Mtn, USdaily high min (Provisional)18.1 C (64.6 F)1.0 C (1.8 F)4 years6 of 100 (Routine)
12 August 2026Moses Mtn, USdaily rain (Tie)5.1 mm (0.20 in)tie1 year0 of 100 (Routine)
7 August 2026Moses Mtn, USdaily high min17.7 C (63.9 F)0.4 C (0.7 F)7 years5 of 100 (Routine)
27 June 2026Moses Mtn, USdaily rain (Tie)17.8 mm (0.7 in)tie20 years2 of 100 (Routine)
19 June 2026Moses Mtn, USdaily high min12.3 C (54.1 F)1.6 C (2.9 F)5 years8 of 100 (Routine)
15 June 2026Moses Mtn, USdaily high min14.1 C (57.4 F)0.4 C (0.7 F)24 years11 of 100 (Routine)
13 May 2026Moses Mtn, USdaily rain (Tie)15.2 mm (0.6 in)tie11 years1 of 100 (Routine)
4 May 2026Moses Mtn, USdaily high min10.6 C (51.1 F)2.7 C (4.9 F)28 years17 of 100 (Routine)
2 May 2026Moses Mtn, USdaily high min (Tie)9.3 C (48.7 F)tie28 years2 of 100 (Routine)
21 April 2026Moses Mtn, USdaily high max17.9 C (64.2 F)0.1 C (0.2 F)16 years8 of 100 (Routine)
6 April 2026Moses Mtn, USdaily high min5.7 C (42.3 F)1.5 C (2.7 F)19 years11 of 100 (Routine)
5 April 2026Moses Mtn, USdaily high max13.0 C (55.4 F)1.0 C (1.8 F)21 years11 of 100 (Routine)
5 April 2026Moses Mtn, USdaily high min4.1 C (39.4 F)1.1 C (2.0 F)21 years11 of 100 (Routine)
2 April 2026Moses Mtn, USdaily rain17.8 mm (0.7 in)5.1 mm (0.20 in)20 years17 of 100 (Routine)

Climate Trend

30 complete years, 1995 to 2025
Annual mean temperature at Moses Mtn as warming stripes, 1995 to 2025 One stripe for each of 30 complete years at Moses Mtn, 1995 to 2025. Blue stripes are years cooler than the station's own mean of 4.7 C (40.5 F); red stripes are warmer. The coolest year was 1996, at 3.1 C (37.5 F), and the warmest was 2015, at 6.3 C (43.3 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1995: 4.0 C, -0.7 C from the station mean1996: 3.1 C, -1.6 C from the station mean1997: 4.1 C, -0.6 C from the station mean1998: 5.1 C, +0.4 C from the station mean1999: 4.0 C, -0.7 C from the station mean2000: 3.8 C, -0.9 C from the station mean2001: 4.3 C, -0.4 C from the station mean2002: 4.3 C, -0.4 C from the station mean2003: 5.0 C, +0.3 C from the station mean2004: 5.3 C, +0.6 C from the station mean2005: 4.8 C, +0.1 C from the station mean2006: 4.9 C, +0.2 C from the station mean2007: 4.7 C, -0.1 C from the station mean2008: 4.2 C, -0.5 C from the station mean2009: 4.5 C, -0.2 C from the station mean2010: 4.4 C, -0.4 C from the station mean2011: 3.6 C, -1.1 C from the station mean2012: 4.4 C, -0.3 C from the station mean2013: 5.0 C, +0.2 C from the station mean2014: 4.9 C, +0.2 C from the station mean2015: 6.3 C, +1.6 C from the station mean2016: 5.1 C, +0.4 C from the station mean2017: 4.5 C, -0.2 C from the station mean2018: 5.1 C, +0.3 C from the station mean2019: 4.5 C, -0.2 C from the station mean2020: 5.2 C, +0.4 C from the station mean2022: 5.2 C, +0.4 C from the station mean2023: 5.5 C, +0.8 C from the station mean2024: 5.7 C, +0.9 C from the station mean2025: 6.1 C, +1.4 C from the station mean1995200020052010201520202025
One stripe for each of 30 complete years at Moses Mtn, 1995 to 2025. Blue stripes are years cooler than the station's own mean of 4.7 C (40.5 F); red stripes are warmer. The coolest year was 1996, at 3.1 C (37.5 F), and the warmest was 2015, at 6.3 C (43.3 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Moses Mtn as warming stripes, 1995 to 2025
YearAnnual mean temperatureDifference from the station mean
19954.0 C-0.74 C
19963.1 C-1.64 C
19974.1 C-0.59 C
19985.1 C+0.36 C
19994.0 C-0.68 C
20003.8 C-0.90 C
20014.3 C-0.39 C
20024.3 C-0.40 C
20035.0 C+0.32 C
20045.3 C+0.61 C
20054.8 C+0.09 C
20064.9 C+0.18 C
20074.7 C-0.05 C
20084.2 C-0.52 C
20094.5 C-0.19 C
20104.4 C-0.35 C
20113.6 C-1.07 C
20124.4 C-0.27 C
20135.0 C+0.24 C
20144.9 C+0.16 C
20156.3 C+1.56 C
20165.1 C+0.39 C
20174.5 C-0.17 C
20185.1 C+0.34 C
20194.5 C-0.23 C
20205.2 C+0.45 C
20225.2 C+0.45 C
20235.5 C+0.80 C
20245.7 C+0.95 C
20256.1 C+1.43 C

The annual mean temperature here has risen by 0.5 C (0.3 to 0.7) per decade over 1995 to 2025. In Fahrenheit: 0.9 F (0.5 to 1.3) 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 Moses Mtn
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.5 C (0.3 to 0.7) per decade0.9 F (0.5 to 1.3) per decade1995 to 202530Rise
Mean daily maximum0.00 C (-0.27 to 0.28) per decade0.01 F (-0.49 to 0.50) per decade1995 to 202530Not clearly different from zero
Mean daily minimum1.0 C (0.8 to 1.2) per decade1.8 F (1.4 to 2.2) per decade1995 to 202530Rise

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

1991 to 2026
Yearly extremes at Moses Mtn: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)34.5 C (94.1 F)199429.6 C (85.3 F)36
Coldest night (TNn)-30.7 C (-23.3 F)2024-20.3 C (-4.6 F)36
Wettest day (Rx1day)71.1 mm (2.8 in)201238.1 mm (1.5 in)36
Wettest five days (Rx5day)129.5 mm (5.1 in)200271.1 mm (2.8 in)36
Longest dry spell (CDD)121 days200636 days36

Hottest day (TXx)

Hottest day (TXx) at Moses Mtn by year The hottest day of the year at Moses Mtn, 1991 to 2026. The record is 34.5 C (94.1 F) in 1994, marked on the chart; the median year is 29.6 C (85.3 F). 010203040200020102020Record: 34.5 C (94.1 F) in 1994
The hottest day of the year at Moses Mtn, 1991 to 2026. The record is 34.5 C (94.1 F) in 1994, marked on the chart; the median year is 29.6 C (85.3 F).
Hottest day (TXx) at Moses Mtn by year
YearHottest day (TXx)
19916.8 C (44.2 F)
199232.2 C (90.0 F)
19934.8 C (40.6 F)
199434.5 C (94.1 F)
199529.8 C (85.6 F)
199631.9 C (89.4 F)
199734.3 C (93.7 F)
199833.1 C (91.6 F)
199929.1 C (84.4 F)
200030.3 C (86.5 F)
200131.2 C (88.2 F)
200231.2 C (88.2 F)
200332.7 C (90.9 F)
200432.7 C (90.9 F)
200529.6 C (85.3 F)
200630.8 C (87.4 F)
200729.2 C (84.6 F)
200830.5 C (86.9 F)
200928.2 C (82.8 F)
201025.3 C (77.5 F)
201126.6 C (79.9 F)
201226.5 C (79.7 F)
201327.4 C (81.3 F)
201428.2 C (82.8 F)
201530.9 C (87.6 F)
201626.2 C (79.2 F)
201728.4 C (83.1 F)
201829.9 C (85.8 F)
201926.8 C (80.2 F)
202029.2 C (84.6 F)
202125.5 C (77.9 F)
202229.6 C (85.3 F)
202330.1 C (86.2 F)
202430.2 C (86.4 F)
202529.6 C (85.3 F)
202627.6 C (81.7 F)

Coldest night (TNn)

Coldest night (TNn) at Moses Mtn by year The coldest night of the year at Moses Mtn, 1991 to 2026. The record is -30.7 C (-23.3 F) in 2024, marked on the chart; the median year is -20.3 C (-4.6 F). -35-30-25-20-15-10200020102020Record: -30.7 C (-23.3 F) in 2024
The coldest night of the year at Moses Mtn, 1991 to 2026. The record is -30.7 C (-23.3 F) in 2024, marked on the chart; the median year is -20.3 C (-4.6 F).
Coldest night (TNn) at Moses Mtn by year
YearColdest night (TNn)
1991-16.7 C (1.9 F)
1992-15.1 C (4.8 F)
1993-20.0 C (-4.0 F)
1994-20.0 C (-4.0 F)
1995-22.8 C (-9.0 F)
1996-26.1 C (-15.0 F)
1997-19.7 C (-3.5 F)
1998-25.2 C (-13.4 F)
1999-13.8 C (7.2 F)
2000-19.8 C (-3.6 F)
2001-14.7 C (5.5 F)
2002-16.2 C (2.8 F)
2003-17.7 C (0.1 F)
2004-25.3 C (-13.5 F)
2005-20.9 C (-5.6 F)
2006-20.6 C (-5.1 F)
2007-15.5 C (4.1 F)
2008-25.9 C (-14.6 F)
2009-22.8 C (-9.0 F)
2010-24.0 C (-11.2 F)
2011-21.2 C (-6.2 F)
2012-14.5 C (5.9 F)
2013-21.8 C (-7.2 F)
2014-24.0 C (-11.2 F)
2015-15.6 C (3.9 F)
2016-21.1 C (-6.0 F)
2017-21.1 C (-6.0 F)
2018-20.1 C (-4.2 F)
2019-19.8 C (-3.6 F)
2020-17.4 C (0.7 F)
2021-22.3 C (-8.1 F)
2022-27.5 C (-17.5 F)
2023-21.4 C (-6.5 F)
2024-30.7 C (-23.3 F)
2025-17.6 C (0.3 F)
2026-15.1 C (4.8 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Moses Mtn by year The wettest day of the year at Moses Mtn, 1991 to 2026. The record is 71.1 mm (2.8 in) in 2012, marked on the chart; the median year is 38.1 mm (1.5 in). 20406080200020102020Record: 71.1 mm (2.8 in) in 2012
The wettest day of the year at Moses Mtn, 1991 to 2026. The record is 71.1 mm (2.8 in) in 2012, marked on the chart; the median year is 38.1 mm (1.5 in).
Wettest day (Rx1day) at Moses Mtn by year
YearWettest day (Rx1day)
199125.4 mm (1.0 in)
199240.6 mm (1.6 in)
199343.2 mm (1.7 in)
199450.8 mm (2.0 in)
199538.1 mm (1.5 in)
199640.6 mm (1.6 in)
199727.9 mm (1.1 in)
199853.3 mm (2.1 in)
199948.3 mm (1.9 in)
200040.6 mm (1.6 in)
200122.9 mm (0.9 in)
200250.8 mm (2.0 in)
200338.1 mm (1.5 in)
200438.1 mm (1.5 in)
200522.9 mm (0.9 in)
200635.6 mm (1.4 in)
200727.9 mm (1.1 in)
200838.1 mm (1.5 in)
200933.0 mm (1.3 in)
201043.2 mm (1.7 in)
201140.6 mm (1.6 in)
201271.1 mm (2.8 in)
201333.0 mm (1.3 in)
201440.6 mm (1.6 in)
201527.9 mm (1.1 in)
201648.3 mm (1.9 in)
201725.4 mm (1.0 in)
201838.1 mm (1.5 in)
201938.1 mm (1.5 in)
202035.6 mm (1.4 in)
202140.6 mm (1.6 in)
202248.3 mm (1.9 in)
202322.9 mm (0.9 in)
202453.3 mm (2.1 in)
202525.4 mm (1.0 in)
202622.9 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Moses Mtn by year The wettest five days of the year at Moses Mtn, 1991 to 2026. The record is 129.5 mm (5.1 in) in 2002, marked on the chart; the median year is 71.1 mm (2.8 in). 255075100125150200020102020Record: 129.5 mm (5.1 in) in 2002
The wettest five days of the year at Moses Mtn, 1991 to 2026. The record is 129.5 mm (5.1 in) in 2002, marked on the chart; the median year is 71.1 mm (2.8 in).
Wettest five days (Rx5day) at Moses Mtn by year
YearWettest five days (Rx5day)
199171.1 mm (2.8 in)
199276.2 mm (3.0 in)
199373.7 mm (2.9 in)
199473.7 mm (2.9 in)
199588.9 mm (3.5 in)
199678.7 mm (3.1 in)
199773.6 mm (2.9 in)
199891.4 mm (3.6 in)
1999101.6 mm (4.0 in)
200055.9 mm (2.2 in)
200176.3 mm (3.0 in)
2002129.5 mm (5.1 in)
200350.8 mm (2.0 in)
200455.8 mm (2.2 in)
200558.5 mm (2.3 in)
2006104.1 mm (4.1 in)
200743.3 mm (1.7 in)
200855.9 mm (2.2 in)
200945.7 mm (1.8 in)
201086.4 mm (3.4 in)
201150.8 mm (2.0 in)
2012109.2 mm (4.3 in)
201353.3 mm (2.1 in)
201458.3 mm (2.3 in)
201576.3 mm (3.0 in)
201683.8 mm (3.3 in)
201761.0 mm (2.4 in)
201871.0 mm (2.8 in)
201961.0 mm (2.4 in)
202068.5 mm (2.7 in)
202163.5 mm (2.5 in)
2022104.2 mm (4.1 in)
202358.4 mm (2.3 in)
202488.8 mm (3.5 in)
202548.2 mm (1.9 in)
202633.0 mm (1.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Moses Mtn by year The longest dry spell of the year at Moses Mtn, 1991 to 2026. The record is 121 days in 2006, marked on the chart; the median year is 36 days. 050100150200020102020Record: 121 days in 2006
The longest dry spell of the year at Moses Mtn, 1991 to 2026. The record is 121 days in 2006, marked on the chart; the median year is 36 days.
Longest dry spell (CDD) at Moses Mtn by year
YearLongest dry spell (CDD)
199122 days
199231 days
199318 days
199471 days
199521 days
199621 days
199741 days
199823 days
199943 days
200054 days
200170 days
200269 days
200375 days
200455 days
200549 days
2006121 days
200731 days
200847 days
200937 days
201034 days
201138 days
201252 days
201327 days
201428 days
201526 days
201631 days
201760 days
201821 days
201925 days
202036 days
202129 days
202236 days
202321 days
202445 days
202556 days
202623 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 Moses Mtn falls on 1 June and the median first autumn frost on 30 September, which leaves a median of 121 days between them.

Fitted over all years, the growing season changes by +24.5 days per decade at this station.

Frost dates and growing season at Moses Mtn
MeasureMedian, all yearsEarliest periodRecent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost1 Junen/a1 Junen/a-14.5 days per decade
First autumn frost30 Septembern/a30 Septembern/a+10.0 days per decade
Growing days121 daysn/a121 daysn/a+24.5 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

34 years, 1992 to 2025

A day with at least 38.2 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 65.4 mm (2.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Moses Mtn: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years38.2 mm (1.5 in)
5 years47.5 mm (1.9 in)
10 years52.7 mm (2.1 in)
25 years58.5 mm (2.3 in)
50 years62.1 mm (2.4 in)Longer than the 34 years of record
100 years65.4 mm (2.6 in)Longer than the 34 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, 34 years of values from 1992 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: 71.1 mm (2.8 in) in 2012; 53.3 mm (2.1 in) in 1998; 53.3 mm (2.1 in) in 2024.

Download the Data

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