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Built 2026-10-16 (16 October 2026)

Long Flat Weather Records (USS0013M02S)

Record envelope, standing records and threshold days for Long Flat (USS0013M02S), Utah, United States, with 47 years of record.

Key Facts for Long Flat

  • Long Flat (USS0013M02S) is a weather station in Utah, United States at 37.51 latitude and -113.40 longitude, 2,438 m (8,000 ft) above sea level.
  • The station reports from 1980 to 2026, 47 years of record.
  • 1,464 records set at Long Flat still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Long Flat set a daily record precipitation of 53.3 mm (2.1 in) on 11 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, 37.51 latitude, -113.40 longitude.
  • Elevation: 2,438 m (8,000 ft).
  • Period of record: 1980 to 2026, 47 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

39 days at or beyond a record
Daily record high and record low at Long Flat, with 2026 drawn through them The band shows the record high and record low for each calendar day at Long Flat. The lines show the 2026 daily maximum and minimum. 39 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 Long Flat. The lines show the 2026 daily maximum and minimum. 39 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Long Flat, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan15.2 C (59.4 F)-24.8 C (-12.6 F)15.0 C (59.0 F)-12.2 C (10.0 F)
Feb18.0 C (64.4 F)-22.3 C (-8.1 F)16.0 C (60.8 F)-15.6 C (3.9 F)
Mar24.7 C (76.5 F)-18.5 C (-1.3 F)24.7 C (76.5 F)-6.0 C (21.2 F)
Apr23.4 C (74.1 F)-18.1 C (-0.6 F)19.0 C (66.2 F)-7.7 C (18.1 F)
May27.4 C (81.3 F)-8.1 C (17.4 F)25.8 C (78.4 F)-2.3 C (27.9 F)
Jun32.8 C (91.0 F)-1.6 C (29.1 F)29.2 C (84.6 F)0.5 C (32.9 F)
Jul33.9 C (93.0 F)4.5 C (40.1 F)31.8 C (89.2 F)9.8 C (49.6 F)
Aug32.8 C (91.0 F)3.0 C (37.4 F)32.1 C (89.8 F)8.2 C (46.8 F)
Sep31.1 C (88.0 F)-4.1 C (24.6 F)28.5 C (83.3 F)3.0 C (37.4 F)
Oct26.5 C (79.7 F)-14.7 C (5.5 F)23.5 C (74.3 F)5.2 C (41.4 F)
Nov20.0 C (68.0 F)-20.8 C (-5.4 F)n/an/a
Dec19.3 C (66.7 F)-25.7 C (-14.3 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Long Flat by the year they were set 1,464 records at Long Flat still stand. 2013 holds the most, with 85. 02550751002005: 412006: 622007: 842008: 692009: 582010: 702011: 622012: 562013: 852014: 582015: 802016: 622017: 752018: 632019: 562020: 822021: 602022: 742023: 622024: 632025: 712026: 7120052008201120142017202020232026
1,464 records at Long Flat still stand. 2013 holds the most, with 85.
Standing records at Long Flat by the year they were set
Year setStanding records
200541
200662
200784
200869
200958
201070
201162
201256
201385
201458
201580
201662
201775
201863
201956
202082
202160
202274
202362
202463
202571
202671

Wettest Day of Each Month

Oct: 88.9 mm (3.5 in)
Record daily precipitation for each month at Long Flat The wettest day on record for each calendar month at Long Flat. The most was 88.9 mm (3.5 in) on 20 October 2004. 0255075100 Jan: 43.2 mm (1.7 in), 25 January 1995 Jan Feb: 35.6 mm (1.4 in), 28 February 2015 Feb Mar: 61.0 mm (2.4 in), 11 March 1995 Mar Apr: 30.5 mm (1.2 in), 8 April 2013 Apr May: 33.0 mm (1.3 in), 11 May 2014 May Jun: 27.9 mm (1.1 in), 2 June 2005 Jun Jul: 78.7 mm (3.1 in), 31 July 2021 Jul Aug: 45.7 mm (1.8 in), 10 August 1997 Aug Sep: 55.9 mm (2.2 in), 21 September 1983 Sep Oct: 88.9 mm (3.5 in), 20 October 2004 Oct Nov: 35.6 mm (1.4 in), 9 November 2012 Nov Dec: 43.2 mm (1.7 in), 20 December 2010 Dec
The wettest day on record for each calendar month at Long Flat. The most was 88.9 mm (3.5 in) on 20 October 2004.
Record daily precipitation for each month at Long Flat
MonthRecord daily precipitation (mm)Date
Jan43.2 mm (1.7 in)25 January 1995
Feb35.6 mm (1.4 in)28 February 2015
Mar61.0 mm (2.4 in)11 March 1995
Apr30.5 mm (1.2 in)8 April 2013
May33.0 mm (1.3 in)11 May 2014
Jun27.9 mm (1.1 in)2 June 2005
Jul78.7 mm (3.1 in)31 July 2021
Aug45.7 mm (1.8 in)10 August 1997
Sep55.9 mm (2.2 in)21 September 1983
Oct88.9 mm (3.5 in)20 October 2004
Nov35.6 mm (1.4 in)9 November 2012
Dec43.2 mm (1.7 in)20 December 2010

Period of Record Coverage

2005 to 2026
Days with data per year at Long Flat 22 years of record at Long Flat, 2005 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2005, 2026. 2005: 228 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 351 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 364 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 364 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 284 of 365 days20052010201520202025
22 years of record at Long Flat, 2005 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2005, 2026.
Days with data per year at Long Flat
YearDays with dataShare of yearComplete
200522862%No
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010364100%Yes
2011365100%Yes
2012366100%Yes
201335196%Yes
2014365100%Yes
2015365100%Yes
201636499%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022364100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628478%No

Latest Records

20
Latest records at Long Flat
DateStationRecordValueBeat old record byOld record stoodSignificance
11 October 2026Long Flat, USdaily rain (Provisional)53.3 mm (2.1 in)33.0 mm (1.3 in)41 years51 of 100 (Notable)
28 September 2026Long Flat, USdaily rain (Provisional)15.2 mm (0.6 in)2.5 mm (0.10 in)35 years16 of 100 (Routine)
17 September 2026Long Flat, USdaily rain (Tie, Provisional)2.5 mm (0.10 in)tie27 years3 of 100 (Routine)
13 August 2026Long Flat, USdaily rain20.3 mm (0.8 in)5.1 mm (0.20 in)4 years11 of 100 (Routine)
14 July 2026Long Flat, USdaily rain25.4 mm (1.0 in)22.9 mm (0.9 in)13 years32 of 100 (Routine)
13 April 2026Long Flat, USdaily rain (Tie)12.7 mm (0.5 in)tie44 years4 of 100 (Routine)
1 April 2026Long Flat, USdaily rain20.3 mm (0.8 in)2.5 mm (0.10 in)44 years20 of 100 (Routine)
8 January 2026Long Flat, USdaily rain15.2 mm (0.6 in)7.6 mm (0.30 in)36 years20 of 100 (Routine)
18 November 2025Long Flat, USdaily rain (Tie)10.2 mm (0.4 in)tie31 years3 of 100 (Routine)
16 November 2025Long Flat, USdaily rain25.4 mm (1.0 in)10.2 mm (0.4 in)10 years21 of 100 (Routine)
10 October 2025Long Flat, USdaily rain (Tie)20.3 mm (0.8 in)tie24 years2 of 100 (Routine)
9 October 2025Long Flat, USdaily rain15.2 mm (0.6 in)2.5 mm (0.10 in)12 years9 of 100 (Routine)
5 May 2025Long Flat, USdaily rain (Tie)15.2 mm (0.6 in)tie10 years1 of 100 (Routine)
13 March 2025Long Flat, USdaily rain (Tie)27.9 mm (1.1 in)tie4 years1 of 100 (Routine)
26 November 2024Long Flat, USdaily rain (Tie)20.3 mm (0.8 in)tie34 years3 of 100 (Routine)
29 October 2024Long Flat, USdaily rain17.8 mm (0.7 in)7.6 mm (0.30 in)37 years20 of 100 (Routine)
17 September 2024Long Flat, USdaily rain (Tie)2.5 mm (0.10 in)tie25 years2 of 100 (Routine)
4 July 2024Long Flat, USdaily rain (Tie)2.5 mm (0.10 in)tie40 years4 of 100 (Routine)
30 March 2024Long Flat, USdaily rain15.2 mm (0.6 in)5.0 mm (0.20 in)42 years20 of 100 (Routine)
15 March 2024Long Flat, USdaily rain (Tie)17.8 mm (0.7 in)tie38 years3 of 100 (Routine)

Climate Trend

19 complete years, 2006 to 2025
Annual mean temperature at Long Flat as warming stripes, 2006 to 2025 One stripe for each of 19 complete years at Long Flat, 2006 to 2025. Blue stripes are years cooler than the station's own mean of 8.1 C (46.5 F); red stripes are warmer. The coolest year was 2011, at 7.0 C (44.6 F), and the warmest was 2025, at 9.2 C (48.5 F). The strongest colour marks a difference of 1.2 C (2.2 F). 2006: 7.6 C, -0.5 C from the station mean2007: 8.2 C, +0.2 C from the station mean2008: 7.4 C, -0.6 C from the station mean2009: 7.4 C, -0.6 C from the station mean2010: 7.2 C, -0.9 C from the station mean2011: 7.0 C, -1.0 C from the station mean2012: 8.3 C, +0.2 C from the station mean2014: 8.7 C, +0.6 C from the station mean2015: 8.5 C, +0.4 C from the station mean2016: 8.6 C, +0.5 C from the station mean2017: 8.6 C, +0.5 C from the station mean2018: 8.5 C, +0.4 C from the station mean2019: 7.0 C, -1.0 C from the station mean2020: 8.8 C, +0.7 C from the station mean2021: 8.4 C, +0.4 C from the station mean2022: 7.9 C, -0.1 C from the station mean2023: 7.2 C, -0.9 C from the station mean2024: 8.9 C, +0.8 C from the station mean2025: 9.2 C, +1.1 C from the station mean2006200820102012201420162018202020222024
One stripe for each of 19 complete years at Long Flat, 2006 to 2025. Blue stripes are years cooler than the station's own mean of 8.1 C (46.5 F); red stripes are warmer. The coolest year was 2011, at 7.0 C (44.6 F), and the warmest was 2025, at 9.2 C (48.5 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Long Flat as warming stripes, 2006 to 2025
YearAnnual mean temperatureDifference from the station mean
20067.6 C-0.47 C
20078.2 C+0.17 C
20087.4 C-0.65 C
20097.4 C-0.65 C
20107.2 C-0.87 C
20117.0 C-1.05 C
20128.3 C+0.18 C
20148.7 C+0.58 C
20158.5 C+0.40 C
20168.6 C+0.52 C
20178.6 C+0.52 C
20188.5 C+0.41 C
20197.0 C-1.04 C
20208.8 C+0.74 C
20218.4 C+0.37 C
20227.9 C-0.15 C
20237.2 C-0.91 C
20248.9 C+0.78 C
20259.2 C+1.10 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 Long Flat: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)33.9 C (93.0 F)202431.4 C (88.5 F)22
Coldest night (TNn)-25.7 C (-14.3 F)2013-19.4 C (-3.0 F)22
Wettest day (Rx1day)88.9 mm (3.5 in)200435.6 mm (1.4 in)47
Wettest five days (Rx5day)122.0 mm (4.8 in)201055.9 mm (2.2 in)47
Longest dry spell (CDD)71 days202235 days47

Hottest day (TXx)

Hottest day (TXx) at Long Flat by year The hottest day of the year at Long Flat, 1980 to 2026. The record is 33.9 C (93.0 F) in 2024, marked on the chart; the median year is 31.4 C (88.5 F). 2830323419801990200020102020Record: 33.9 C (93.0 F) in 2024
The hottest day of the year at Long Flat, 1980 to 2026. The record is 33.9 C (93.0 F) in 2024, marked on the chart; the median year is 31.4 C (88.5 F).
Hottest day (TXx) at Long Flat 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
2002n/a
2003n/a
2004n/a
200531.8 C (89.2 F)
200631.2 C (88.2 F)
200731.4 C (88.5 F)
200830.3 C (86.5 F)
200932.6 C (90.7 F)
201030.2 C (86.4 F)
201130.5 C (86.9 F)
201231.2 C (88.2 F)
201332.8 C (91.0 F)
201430.0 C (86.0 F)
201531.0 C (87.8 F)
201632.8 C (91.0 F)
201731.4 C (88.5 F)
201830.3 C (86.5 F)
201928.9 C (84.0 F)
202032.8 C (91.0 F)
202133.7 C (92.7 F)
202231.3 C (88.3 F)
202333.0 C (91.4 F)
202433.9 C (93.0 F)
202531.8 C (89.2 F)
202632.1 C (89.8 F)

Coldest night (TNn)

Coldest night (TNn) at Long Flat by year The coldest night of the year at Long Flat, 1980 to 2026. The record is -25.7 C (-14.3 F) in 2013, marked on the chart; the median year is -19.4 C (-3.0 F). -30-25-20-1519801990200020102020Record: -25.7 C (-14.3 F) in 2013
The coldest night of the year at Long Flat, 1980 to 2026. The record is -25.7 C (-14.3 F) in 2013, marked on the chart; the median year is -19.4 C (-3.0 F).
Coldest night (TNn) at Long Flat 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
2002n/a
2003n/a
2004n/a
2005-15.1 C (4.8 F)
2006-18.6 C (-1.5 F)
2007-20.9 C (-5.6 F)
2008-20.7 C (-5.3 F)
2009-19.7 C (-3.5 F)
2010-22.2 C (-8.0 F)
2011-21.0 C (-5.8 F)
2012-18.1 C (-0.6 F)
2013-25.7 C (-14.3 F)
2014-18.3 C (-0.9 F)
2015-20.2 C (-4.4 F)
2016-21.3 C (-6.3 F)
2017-19.2 C (-2.6 F)
2018-22.3 C (-8.1 F)
2019-21.5 C (-6.7 F)
2020-15.1 C (4.8 F)
2021-16.8 C (1.8 F)
2022-20.2 C (-4.4 F)
2023-19.2 C (-2.6 F)
2024-15.5 C (4.1 F)
2025-17.2 C (1.0 F)
2026-15.6 C (3.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Long Flat by year The wettest day of the year at Long Flat, 1980 to 2026. The record is 88.9 mm (3.5 in) in 2004, marked on the chart; the median year is 35.6 mm (1.4 in). 02040608010019801990200020102020Record: 88.9 mm (3.5 in) in 2004
The wettest day of the year at Long Flat, 1980 to 2026. The record is 88.9 mm (3.5 in) in 2004, marked on the chart; the median year is 35.6 mm (1.4 in).
Wettest day (Rx1day) at Long Flat by year
YearWettest day (Rx1day)
198015.2 mm (0.6 in)
198130.5 mm (1.2 in)
198235.6 mm (1.4 in)
198355.9 mm (2.2 in)
198430.5 mm (1.2 in)
198553.3 mm (2.1 in)
198625.4 mm (1.0 in)
198725.4 mm (1.0 in)
198840.6 mm (1.6 in)
198935.6 mm (1.4 in)
199025.4 mm (1.0 in)
199133.0 mm (1.3 in)
199235.6 mm (1.4 in)
199338.1 mm (1.5 in)
199427.9 mm (1.1 in)
199561.0 mm (2.4 in)
199627.9 mm (1.1 in)
199745.7 mm (1.8 in)
199845.7 mm (1.8 in)
199920.3 mm (0.8 in)
200030.5 mm (1.2 in)
200125.4 mm (1.0 in)
200222.9 mm (0.9 in)
200320.3 mm (0.8 in)
200488.9 mm (3.5 in)
200530.5 mm (1.2 in)
200640.6 mm (1.6 in)
200755.9 mm (2.2 in)
200830.5 mm (1.2 in)
200920.3 mm (0.8 in)
201043.2 mm (1.7 in)
201127.9 mm (1.1 in)
201248.3 mm (1.9 in)
201340.6 mm (1.6 in)
201455.9 mm (2.2 in)
201535.6 mm (1.4 in)
201640.6 mm (1.6 in)
201735.6 mm (1.4 in)
201840.6 mm (1.6 in)
201933.0 mm (1.3 in)
202030.5 mm (1.2 in)
202178.7 mm (3.1 in)
202227.9 mm (1.1 in)
202340.6 mm (1.6 in)
202427.9 mm (1.1 in)
202538.1 mm (1.5 in)
202653.3 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Long Flat by year The wettest five days of the year at Long Flat, 1980 to 2026. The record is 122.0 mm (4.8 in) in 2010, marked on the chart; the median year is 55.9 mm (2.2 in). 25507510012519801990200020102020Record: 122.0 mm (4.8 in) in 2010
The wettest five days of the year at Long Flat, 1980 to 2026. The record is 122.0 mm (4.8 in) in 2010, marked on the chart; the median year is 55.9 mm (2.2 in).
Wettest five days (Rx5day) at Long Flat by year
YearWettest five days (Rx5day)
198025.4 mm (1.0 in)
198140.6 mm (1.6 in)
198288.9 mm (3.5 in)
1983104.2 mm (4.1 in)
198463.5 mm (2.5 in)
198578.7 mm (3.1 in)
198655.9 mm (2.2 in)
198755.8 mm (2.2 in)
198863.5 mm (2.5 in)
198950.8 mm (2.0 in)
199048.3 mm (1.9 in)
199166.0 mm (2.6 in)
199250.8 mm (2.0 in)
199358.4 mm (2.3 in)
199445.6 mm (1.8 in)
199573.6 mm (2.9 in)
199655.8 mm (2.2 in)
199750.8 mm (2.0 in)
199853.4 mm (2.1 in)
199940.6 mm (1.6 in)
200066.0 mm (2.6 in)
200145.7 mm (1.8 in)
200235.6 mm (1.4 in)
200340.7 mm (1.6 in)
2004121.9 mm (4.8 in)
200555.8 mm (2.2 in)
200653.4 mm (2.1 in)
200763.4 mm (2.5 in)
200855.9 mm (2.2 in)
200938.1 mm (1.5 in)
2010122.0 mm (4.8 in)
201140.6 mm (1.6 in)
201258.4 mm (2.3 in)
201371.1 mm (2.8 in)
201466.1 mm (2.6 in)
201576.2 mm (3.0 in)
201650.7 mm (2.0 in)
201753.4 mm (2.1 in)
201876.2 mm (3.0 in)
201968.6 mm (2.7 in)
202040.6 mm (1.6 in)
2021114.2 mm (4.5 in)
202255.8 mm (2.2 in)
202368.6 mm (2.7 in)
202450.7 mm (2.0 in)
202561.0 mm (2.4 in)
202660.9 mm (2.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Long Flat by year The longest dry spell of the year at Long Flat, 1980 to 2026. The record is 71 days in 2022, marked on the chart; the median year is 35 days. 02040608019801990200020102020Record: 71 days in 2022
The longest dry spell of the year at Long Flat, 1980 to 2026. The record is 71 days in 2022, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Long Flat by year
YearLongest dry spell (CDD)
198016 days
198132 days
198224 days
198332 days
198420 days
198528 days
198640 days
198720 days
198833 days
198969 days
199024 days
199126 days
199228 days
199334 days
199426 days
199556 days
199633 days
199735 days
199818 days
199931 days
200034 days
200139 days
200235 days
200355 days
200424 days
200521 days
200640 days
200740 days
200837 days
200926 days
201028 days
201137 days
201270 days
201354 days
201454 days
201535 days
201645 days
201758 days
201850 days
201937 days
202043 days
202162 days
202271 days
202334 days
202450 days
202533 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.

Rainfall Return Levels

45 years, 1981 to 2025

A day with at least 34.4 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 92.2 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Long Flat: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years34.4 mm (1.4 in)
5 years46.3 mm (1.8 in)
10 years55.4 mm (2.2 in)
25 years68.6 mm (2.7 in)
50 years79.8 mm (3.1 in)Longer than the 45 years of record
100 years92.2 mm (3.6 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: 88.9 mm (3.5 in) in 2004; 78.7 mm (3.1 in) in 2021; 61.0 mm (2.4 in) in 1995.

Download the Data

  • Data for Long Flat standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Long Flat 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).