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Sevier Reservoir - Scipio 9NNE Weather Records (USR0000SEVI)

Record envelope, standing records and threshold days for Sevier Reservoir - Scipio 9NNE (USR0000SEVI), Utah, United States, with 37 years of record.

Key Facts for Sevier Reservoir - Scipio 9NNE

  • Sevier Reservoir - Scipio 9NNE (USR0000SEVI) is a weather station in Utah, United States at 39.35 latitude and -112.00 longitude, 1,625 m (5,330 ft) above sea level.
  • The station reports from 1987 to 2023, 37 years of record.
  • 1,464 records set at Sevier Reservoir - Scipio 9NNE still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Sevier Reservoir - Scipio 9NNE set a daily record high minimum temperature of 12.8 C (55.0 F) on 10 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, 39.35 latitude, -112.00 longitude.
  • Elevation: 1,625 m (5,330 ft).
  • Period of record: 1987 to 2023, 37 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

29 days at or beyond a record
Daily record high and record low at Sevier Reservoir - Scipio 9NNE, with 2026 drawn through them The band shows the record high and record low for each calendar day at Sevier Reservoir - Scipio 9NNE. The lines show the 2026 daily maximum and minimum. 29 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 Sevier Reservoir - Scipio 9NNE. The lines show the 2026 daily maximum and minimum. 29 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Sevier Reservoir - Scipio 9NNE, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.8 C (64.0 F)-23.9 C (-11.0 F)14.4 C (57.9 F)-11.7 C (10.9 F)
Feb20.0 C (68.0 F)-30.0 C (-22.0 F)18.3 C (64.9 F)-11.7 C (10.9 F)
Mar30.6 C (87.1 F)-14.4 C (6.1 F)30.6 C (87.1 F)-5.6 C (21.9 F)
Apr30.6 C (87.1 F)-8.3 C (17.1 F)26.7 C (80.1 F)-6.1 C (21.0 F)
May36.7 C (98.1 F)-3.9 C (25.0 F)33.3 C (91.9 F)0.6 C (33.1 F)
Jun41.1 C (106.0 F)0.0 C (32.0 F)35.6 C (96.1 F)3.9 C (39.0 F)
Jul41.7 C (107.1 F)5.0 C (41.0 F)41.1 C (106.0 F)12.2 C (54.0 F)
Aug40.6 C (105.1 F)5.0 C (41.0 F)40.6 C (105.1 F)11.7 C (53.1 F)
Sep38.9 C (102.0 F)-1.1 C (30.0 F)32.2 C (90.0 F)8.3 C (46.9 F)
Oct33.9 C (93.0 F)-13.3 C (8.1 F)31.1 C (88.0 F)8.9 C (48.0 F)
Nov25.6 C (78.1 F)-21.1 C (-6.0 F)n/an/a
Dec19.4 C (66.9 F)-30.6 C (-23.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Sevier Reservoir - Scipio 9NNE by the year they were set 1,464 records at Sevier Reservoir - Scipio 9NNE still stand. 1996 holds the most, with 58. 02040601987: 61988: 561989: 571990: 511991: 391992: 371993: 411994: 461995: 431996: 581997: 271998: 361999: 382000: 442001: 332002: 312003: 412004: 332005: 272006: 282007: 382008: 292009: 512010: 362011: 292012: 492013: 402014: 262015: 322016: 362017: 482018: 362019: 342020: 442021: 322022: 422023: 312024: 232026: 361987199119951999200320072011201520192023
1,464 records at Sevier Reservoir - Scipio 9NNE still stand. 1996 holds the most, with 58.
Standing records at Sevier Reservoir - Scipio 9NNE by the year they were set
Year setStanding records
19876
198856
198957
199051
199139
199237
199341
199446
199543
199658
199727
199836
199938
200044
200133
200231
200341
200433
200527
200628
200738
200829
200951
201036
201129
201249
201340
201426
201532
201636
201748
201836
201934
202044
202132
202242
202331
202423
202636

All-Time Record Progression

1 new records
When Sevier Reservoir - Scipio 9NNE set new all-time records 1 all-time records were set at Sevier Reservoir - Scipio 9NNE between 8 July 2021 and 8 July 2021. Each dot is a new record. Record high minimum temperature8 July 2021: Record high minimum temperature 28.3 C (82.9 F)
1 all-time records were set at Sevier Reservoir - Scipio 9NNE between 8 July 2021 and 8 July 2021. Each dot is a new record.
When Sevier Reservoir - Scipio 9NNE set new all-time records
DateKindDetail
2021-07-08Record high minimum temperatureRecord high minimum temperature 28.3 C (82.9 F)

Period of Record Coverage

1987 to 2026
Days with data per year at Sevier Reservoir - Scipio 9NNE 39 years of record at Sevier Reservoir - Scipio 9NNE, 1987 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1987, 2026. 1987: 120 of 365 days1988: 361 of 366 days1989: 365 of 365 days1990: 364 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 354 of 365 days1994: 362 of 365 days1995: 337 of 365 days1996: 366 of 366 days1997: 363 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 364 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 355 of 365 days2006: 354 of 365 days2007: 360 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 364 of 365 days2012: 352 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 363 of 366 days2017: 364 of 365 days2018: 365 of 365 days2019: 364 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 364 of 365 days2024: 365 of 366 days2026: 284 of 365 days1990199520002005201020152020
39 years of record at Sevier Reservoir - Scipio 9NNE, 1987 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1987, 2026.
Days with data per year at Sevier Reservoir - Scipio 9NNE
YearDays with dataShare of yearComplete
198712033%No
198836199%Yes
1989365100%Yes
1990364100%Yes
1991365100%Yes
1992366100%Yes
199335497%Yes
199436299%Yes
199533792%Yes
1996366100%Yes
199736399%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002364100%Yes
2003365100%Yes
2004365100%Yes
200535597%Yes
200635497%Yes
200736099%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011364100%Yes
201235296%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
201636399%Yes
2017364100%Yes
2018365100%Yes
2019364100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023364100%Yes
2024365100%Yes
202628478%No

Latest Records

20
Latest records at Sevier Reservoir - Scipio 9NNE
DateStationRecordValueBeat old record byOld record stoodSignificance
10 October 2026Sevier Reservoir - Scipio 9NNE, USdaily high min (Provisional)12.8 C (55.0 F)1.1 C (2.0 F)1 year6 of 100 (Routine)
8 October 2026Sevier Reservoir - Scipio 9NNE, USdaily high min (Tie, Provisional)10.6 C (51.1 F)tie23 years2 of 100 (Routine)
7 October 2026Sevier Reservoir - Scipio 9NNE, USdaily high min (Provisional)10.6 C (51.1 F)0.6 C (1.1 F)1 year5 of 100 (Routine)
6 October 2026Sevier Reservoir - Scipio 9NNE, USdaily high min (Provisional)13.3 C (55.9 F)1.6 C (2.9 F)37 years18 of 100 (Routine)
5 October 2026Sevier Reservoir - Scipio 9NNE, USdaily high max (Provisional)31.1 C (88.0 F)2.2 C (4.0 F)29 years15 of 100 (Routine)
3 October 2026Sevier Reservoir - Scipio 9NNE, USdaily high max (Provisional)31.1 C (88.0 F)0.5 C (0.9 F)39 years15 of 100 (Routine)
26 September 2026Sevier Reservoir - Scipio 9NNE, USdaily high min (Tie, Provisional)17.2 C (63.0 F)tie36 years3 of 100 (Routine)
13 September 2026Sevier Reservoir - Scipio 9NNE, USdaily high min (Provisional)23.9 C (75.0 F)3.3 C (5.9 F)8 years13 of 100 (Routine)
29 August 2026Sevier Reservoir - Scipio 9NNE, USdaily low max (Provisional)24.4 C (75.9 F)2.3 C (4.1 F)16 years15 of 100 (Routine)
20 August 2026Sevier Reservoir - Scipio 9NNE, USdaily high max (Tie, Provisional)37.2 C (99.0 F)tie5 years1 of 100 (Routine)
19 August 2026Sevier Reservoir - Scipio 9NNE, USmonthly high min (Provisional)26.1 C (79.0 F)0.5 C (0.9 F)18 years20 of 100 (Routine)
18 August 2026Sevier Reservoir - Scipio 9NNE, USdaily high min (Provisional)21.7 C (71.1 F)1.1 C (2.0 F)28 years15 of 100 (Routine)
15 August 2026Sevier Reservoir - Scipio 9NNE, USdaily low min (Tie)11.7 C (53.1 F)tie16 years2 of 100 (Routine)
14 August 2026Sevier Reservoir - Scipio 9NNE, USdaily low max21.7 C (71.1 F)7.7 C (13.9 F)4 years29 of 100 (Routine)
8 August 2026Sevier Reservoir - Scipio 9NNE, USdaily high max38.9 C (102.0 F)1.7 C (3.1 F)24 years16 of 100 (Routine)
7 August 2026Sevier Reservoir - Scipio 9NNE, USdaily high max39.4 C (102.9 F)1.1 C (2.0 F)24 years14 of 100 (Routine)
6 August 2026Sevier Reservoir - Scipio 9NNE, USdaily high max38.9 C (102.0 F)1.1 C (2.0 F)1 year7 of 100 (Routine)
1 August 2026Sevier Reservoir - Scipio 9NNE, USmonthly high max40.6 C (105.1 F)0.6 C (1.1 F)5 years16 of 100 (Routine)
26 July 2026Sevier Reservoir - Scipio 9NNE, USdaily high min23.9 C (75.0 F)1.7 C (3.1 F)17 years14 of 100 (Routine)
25 July 2026Sevier Reservoir - Scipio 9NNE, USdaily high min22.2 C (72.0 F)0.5 C (0.9 F)23 years11 of 100 (Routine)

Climate Trend

35 complete years, 1988 to 2024
Annual mean temperature at Sevier Reservoir - Scipio 9NNE as warming stripes, 1988 to 2024 One stripe for each of 35 complete years at Sevier Reservoir - Scipio 9NNE, 1988 to 2024. Blue stripes are years cooler than the station's own mean of 11.4 C (52.5 F); red stripes are warmer. The coolest year was 1993, at 10.2 C (50.3 F), and the warmest was 2024, at 12.5 C (54.5 F). The strongest colour marks a difference of 1.3 C (2.3 F). 1988: 10.5 C, -0.9 C from the station mean1989: 10.7 C, -0.7 C from the station mean1990: 11.1 C, -0.3 C from the station mean1991: 10.4 C, -1.0 C from the station mean1992: 11.8 C, +0.4 C from the station mean1993: 10.2 C, -1.2 C from the station mean1994: 11.8 C, +0.5 C from the station mean1996: 11.6 C, +0.2 C from the station mean1997: 10.9 C, -0.5 C from the station mean1998: 10.8 C, -0.6 C from the station mean1999: 11.5 C, +0.1 C from the station mean2000: 12.1 C, +0.7 C from the station mean2001: 12.1 C, +0.8 C from the station mean2002: 11.3 C, -0.1 C from the station mean2003: 12.1 C, +0.7 C from the station mean2004: 11.0 C, -0.4 C from the station mean2005: 11.9 C, +0.5 C from the station mean2006: 11.5 C, +0.1 C from the station mean2007: 11.6 C, +0.2 C from the station mean2008: 10.8 C, -0.6 C from the station mean2009: 10.7 C, -0.7 C from the station mean2010: 10.9 C, -0.5 C from the station mean2011: 10.5 C, -0.9 C from the station mean2013: 10.6 C, -0.8 C from the station mean2014: 12.1 C, +0.7 C from the station mean2015: 12.4 C, +1.0 C from the station mean2016: 11.9 C, +0.5 C from the station mean2017: 12.1 C, +0.8 C from the station mean2018: 12.1 C, +0.7 C from the station mean2019: 10.7 C, -0.7 C from the station mean2020: 11.9 C, +0.5 C from the station mean2021: 12.1 C, +0.7 C from the station mean2022: 11.2 C, -0.2 C from the station mean2023: 11.1 C, -0.3 C from the station mean2024: 12.5 C, +1.1 C from the station mean1988199520002005201020152020
One stripe for each of 35 complete years at Sevier Reservoir - Scipio 9NNE, 1988 to 2024. Blue stripes are years cooler than the station's own mean of 11.4 C (52.5 F); red stripes are warmer. The coolest year was 1993, at 10.2 C (50.3 F), and the warmest was 2024, at 12.5 C (54.5 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Sevier Reservoir - Scipio 9NNE as warming stripes, 1988 to 2024
YearAnnual mean temperatureDifference from the station mean
198810.5 C-0.87 C
198910.7 C-0.68 C
199011.1 C-0.32 C
199110.4 C-0.97 C
199211.8 C+0.38 C
199310.2 C-1.22 C
199411.8 C+0.46 C
199611.6 C+0.19 C
199710.9 C-0.48 C
199810.8 C-0.57 C
199911.5 C+0.14 C
200012.1 C+0.67 C
200112.1 C+0.75 C
200211.3 C-0.13 C
200312.1 C+0.68 C
200411.0 C-0.39 C
200511.9 C+0.51 C
200611.5 C+0.14 C
200711.6 C+0.20 C
200810.8 C-0.57 C
200910.7 C-0.66 C
201010.9 C-0.49 C
201110.5 C-0.93 C
201310.6 C-0.78 C
201412.1 C+0.70 C
201512.4 C+0.99 C
201611.9 C+0.48 C
201712.1 C+0.75 C
201812.1 C+0.74 C
201910.7 C-0.70 C
202011.9 C+0.52 C
202112.1 C+0.69 C
202211.2 C-0.22 C
202311.1 C-0.26 C
202412.5 C+1.13 C

The annual mean temperature here has risen by 0.23 C (0.03 to 0.42) per decade over 1988 to 2024. In Fahrenheit: 0.4 F (0.1 to 0.8) 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 Sevier Reservoir - Scipio 9NNE
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.23 C (0.03 to 0.42) per decade0.4 F (0.1 to 0.8) per decade1988 to 202435Rise
Mean daily maximum0.18 C (-0.03 to 0.39) per decade0.3 F (-0.1 to 0.7) per decade1988 to 202435Not clearly different from zero
Mean daily minimum0.3 C (0.1 to 0.5) per decade0.5 F (0.1 to 0.9) per decade1988 to 202435Rise

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

1987 to 2026
Yearly extremes at Sevier Reservoir - Scipio 9NNE: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.7 C (107.1 F)200239.4 C (102.9 F)39
Coldest night (TNn)-30.6 C (-23.1 F)1990-20.0 C (-4.0 F)39

Hottest day (TXx)

Hottest day (TXx) at Sevier Reservoir - Scipio 9NNE by year The hottest day of the year at Sevier Reservoir - Scipio 9NNE, 1987 to 2026. The record is 41.7 C (107.1 F) in 2002, marked on the chart; the median year is 39.4 C (102.9 F). 3032.53537.54042.51990200020102020Record: 41.7 C (107.1 F) in 2002
The hottest day of the year at Sevier Reservoir - Scipio 9NNE, 1987 to 2026. The record is 41.7 C (107.1 F) in 2002, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Sevier Reservoir - Scipio 9NNE by year
YearHottest day (TXx)
198731.7 C (89.1 F)
198838.3 C (100.9 F)
198940.6 C (105.1 F)
199037.2 C (99.0 F)
199137.8 C (100.0 F)
199238.3 C (100.9 F)
199336.7 C (98.1 F)
199438.9 C (102.0 F)
199539.4 C (102.9 F)
199639.4 C (102.9 F)
199736.7 C (98.1 F)
199840.6 C (105.1 F)
199937.8 C (100.0 F)
200040.0 C (104.0 F)
200141.1 C (106.0 F)
200241.7 C (107.1 F)
200340.0 C (104.0 F)
200437.2 C (99.0 F)
200540.6 C (105.1 F)
200640.0 C (104.0 F)
200740.0 C (104.0 F)
200838.3 C (100.9 F)
200940.0 C (104.0 F)
201038.3 C (100.9 F)
201138.3 C (100.9 F)
201238.9 C (102.0 F)
201341.1 C (106.0 F)
201438.3 C (100.9 F)
201539.4 C (102.9 F)
201639.4 C (102.9 F)
201739.4 C (102.9 F)
201838.3 C (100.9 F)
201937.8 C (100.0 F)
202040.0 C (104.0 F)
202140.0 C (104.0 F)
202238.9 C (102.0 F)
202340.6 C (105.1 F)
202441.1 C (106.0 F)
202641.1 C (106.0 F)

Coldest night (TNn)

Coldest night (TNn) at Sevier Reservoir - Scipio 9NNE by year The coldest night of the year at Sevier Reservoir - Scipio 9NNE, 1987 to 2026. The record is -30.6 C (-23.1 F) in 1990, marked on the chart; the median year is -20.0 C (-4.0 F). -35-30-25-20-15-101990200020102020Record: -30.6 C (-23.1 F) in 1990
The coldest night of the year at Sevier Reservoir - Scipio 9NNE, 1987 to 2026. The record is -30.6 C (-23.1 F) in 1990, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Sevier Reservoir - Scipio 9NNE by year
YearColdest night (TNn)
1987-25.6 C (-14.1 F)
1988-23.9 C (-11.0 F)
1989-30.0 C (-22.0 F)
1990-30.6 C (-23.1 F)
1991-18.3 C (-0.9 F)
1992-20.0 C (-4.0 F)
1993-20.6 C (-5.1 F)
1994-17.2 C (1.0 F)
1995-16.7 C (1.9 F)
1996-16.7 C (1.9 F)
1997-20.6 C (-5.1 F)
1998-27.2 C (-17.0 F)
1999-14.4 C (6.1 F)
2000-11.7 C (10.9 F)
2001-18.9 C (-2.0 F)
2002-16.7 C (1.9 F)
2003-16.7 C (1.9 F)
2004-20.6 C (-5.1 F)
2005-16.7 C (1.9 F)
2006-20.6 C (-5.1 F)
2007-22.8 C (-9.0 F)
2008-18.9 C (-2.0 F)
2009-23.9 C (-11.0 F)
2010-21.1 C (-6.0 F)
2011-20.6 C (-5.1 F)
2012-20.0 C (-4.0 F)
2013-23.3 C (-9.9 F)
2014-17.8 C (0.0 F)
2015-19.4 C (-2.9 F)
2016-21.7 C (-7.1 F)
2017-20.6 C (-5.1 F)
2018-17.2 C (1.0 F)
2019-20.6 C (-5.1 F)
2020-18.9 C (-2.0 F)
2021-15.6 C (3.9 F)
2022-20.0 C (-4.0 F)
2023-18.9 C (-2.0 F)
2024-13.3 C (8.1 F)
2026-11.7 C (10.9 F)

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 Sevier Reservoir - Scipio 9NNE falls on 5 May and the median first autumn frost on 10 October, which leaves a median of 157 days between them.

Fitted over all years, the growing season changes by +6.4 days per decade at this station.

Frost dates and growing season at Sevier Reservoir - Scipio 9NNE
MeasureMedian, all yearsEarliest periodRecent period (1993 to 2024)Recent against earliestFitted trend
Last spring frost5 Mayn/a4 Mayn/a-2.7 days per decade
First autumn frost10 Octobern/a10 Octobern/a+3.7 days per decade
Growing days157 daysn/a158 daysn/a+6.4 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.

Download the Data

  • Data for Sevier Reservoir - Scipio 9NNE standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Sevier Reservoir - Scipio 9NNE 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).