Daily records
Page built 2026-10-15
Data as of 2026-10-14
Search
Built 2026-10-15 (15 October 2026)

Mount Stella Oregon Weather Records (USR0000OMOU)

Record envelope, standing records and threshold days for Mount Stella Oregon (USR0000OMOU), Oregon, United States, with 39 years of record.

Key Facts for Mount Stella Oregon

  • Mount Stella Oregon (USR0000OMOU) is a weather station in Oregon, United States at 42.94 latitude and -122.44 longitude, 1,437 m (4,715 ft) above sea level.
  • The station reports from 1985 to 2023, 39 years of record.
  • 1,464 records set at Mount Stella Oregon still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Mount Stella Oregon set a daily record high minimum temperature of 16.7 C (62.1 F) on 8 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Oregon, United States, 42.94 latitude, -122.44 longitude.
  • Elevation: 1,437 m (4,715 ft).
  • Period of record: 1985 to 2023, 39 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

21 days at or beyond a record
Daily record high and record low at Mount Stella Oregon, with 2026 drawn through them The band shows the record high and record low for each calendar day at Mount Stella Oregon. The lines show the 2026 daily maximum and minimum. 21 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 Mount Stella Oregon. The lines show the 2026 daily maximum and minimum. 21 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Mount Stella Oregon, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.9 C (75.0 F)-13.9 C (7.0 F)23.9 C (75.0 F)-5.0 C (23.0 F)
Feb23.9 C (75.0 F)-20.6 C (-5.1 F)21.7 C (71.1 F)-7.2 C (19.0 F)
Mar23.9 C (75.0 F)-22.8 C (-9.0 F)23.3 C (73.9 F)-3.9 C (25.0 F)
Apr30.0 C (86.0 F)-20.6 C (-5.1 F)23.3 C (73.9 F)-5.0 C (23.0 F)
May33.3 C (91.9 F)-17.8 C (0.0 F)28.3 C (82.9 F)-1.7 C (28.9 F)
Jun38.9 C (102.0 F)-7.2 C (19.0 F)34.4 C (93.9 F)0.0 C (32.0 F)
Jul40.6 C (105.1 F)-0.6 C (30.9 F)34.4 C (93.9 F)3.3 C (37.9 F)
Aug40.6 C (105.1 F)0.2 C (32.4 F)36.7 C (98.1 F)7.2 C (45.0 F)
Sep37.8 C (100.0 F)-2.6 C (27.3 F)29.4 C (84.9 F)3.9 C (39.0 F)
Oct31.7 C (89.1 F)-6.9 C (19.6 F)30.0 C (86.0 F)0.0 C (32.0 F)
Nov25.0 C (77.0 F)-13.1 C (8.4 F)n/an/a
Dec21.1 C (70.0 F)-24.5 C (-12.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Mount Stella Oregon by the year they were set 1,464 records at Mount Stella Oregon still stand. 2010 holds the most, with 105. 0501001501985: 161987: 211988: 411989: 551990: 561991: 371992: 471993: 731994: 481995: 421996: 371997: 191998: 161999: 402000: 252001: 282002: 352003: 212004: 92005: 252006: 312007: 242008: 352009: 342010: 1052011: 132012: 232013: 382014: 212015: 572016: 392017: 452018: 132019: 232020: 302021: 372022: 562023: 252024: 302025: 482026: 46198519911996200120062011201620212026
1,464 records at Mount Stella Oregon still stand. 2010 holds the most, with 105.
Standing records at Mount Stella Oregon by the year they were set
Year setStanding records
198516
198721
198841
198955
199056
199137
199247
199373
199448
199542
199637
199719
199816
199940
200025
200128
200235
200321
20049
200525
200631
200724
200835
200934
2010105
201113
201223
201338
201421
201557
201639
201745
201813
201923
202030
202137
202256
202325
202430
202548
202646

All-Time Record Progression

1 new records
When Mount Stella Oregon set new all-time records 1 all-time records were set at Mount Stella Oregon between 29 July 2022 and 29 July 2022. Each dot is a new record. Record high minimum temperature29 July 2022: Record high minimum temperature 25.0 C (77.0 F)
1 all-time records were set at Mount Stella Oregon between 29 July 2022 and 29 July 2022. Each dot is a new record.
When Mount Stella Oregon set new all-time records
DateKindDetail
2022-07-29Record high minimum temperatureRecord high minimum temperature 25.0 C (77.0 F)

Period of Record Coverage

1985 to 2026
Days with data per year at Mount Stella Oregon 41 years of record at Mount Stella Oregon, 1985 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1985, 1987, 1993, 1996, 2004, 2008, 2010, 2026. 1985: 110 of 365 days1987: 198 of 365 days1988: 363 of 366 days1989: 365 of 365 days1990: 364 of 365 days1991: 362 of 365 days1992: 366 of 366 days1993: 303 of 365 days1994: 363 of 365 days1995: 363 of 365 days1996: 326 of 366 days1997: 364 of 365 days1998: 347 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 361 of 365 days2002: 363 of 365 days2003: 335 of 365 days2004: 173 of 366 days2005: 364 of 365 days2006: 365 of 365 days2007: 358 of 365 days2008: 177 of 366 days2009: 364 of 365 days2010: 320 of 365 days2011: 360 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 363 of 366 days2017: 362 of 365 days2018: 353 of 365 days2019: 364 of 365 days2020: 364 of 366 days2021: 364 of 365 days2022: 365 of 365 days2023: 363 of 365 days2024: 362 of 366 days2025: 365 of 365 days2026: 279 of 365 days1990200020102020
41 years of record at Mount Stella Oregon, 1985 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1985, 1987, 1993, 1996, 2004, 2008, 2010, 2026.
Days with data per year at Mount Stella Oregon
YearDays with dataShare of yearComplete
198511030%No
198719854%No
198836399%Yes
1989365100%Yes
1990364100%Yes
199136299%Yes
1992366100%Yes
199330383%No
199436399%Yes
199536399%Yes
199632689%No
1997364100%Yes
199834795%Yes
1999365100%Yes
2000366100%Yes
200136199%Yes
200236399%Yes
200333592%Yes
200417347%No
2005364100%Yes
2006365100%Yes
200735898%Yes
200817748%No
2009364100%Yes
201032088%No
201136099%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015364100%Yes
201636399%Yes
201736299%Yes
201835397%Yes
2019364100%Yes
202036499%Yes
2021364100%Yes
2022365100%Yes
202336399%Yes
202436299%Yes
2025365100%Yes
202627976%No

Latest Records

20
Latest records at Mount Stella Oregon
DateStationRecordValueBeat old record byOld record stoodSignificance
8 October 2026Mount Stella Oregon, USdaily high min (Provisional)16.7 C (62.1 F)0.6 C (1.1 F)29 years13 of 100 (Routine)
6 October 2026Mount Stella Oregon, USall-time high min (Provisional)25.6 C (78.1 F)0.6 C (1.1 F)4 years26 of 100 (Routine)
5 October 2026Mount Stella Oregon, USmonthly high min (Provisional)18.9 C (66.0 F)0.6 C (1.1 F)10 years18 of 100 (Routine)
5 October 2026Mount Stella Oregon, USdaily high max (Tie, Provisional)28.9 C (84.0 F)tie12 years1 of 100 (Routine)
3 October 2026Mount Stella Oregon, USdaily high max (Provisional)29.4 C (84.9 F)1.1 C (2.0 F)24 years12 of 100 (Routine)
3 September 2026Mount Stella Oregon, USdaily low max (Provisional)11.7 C (53.1 F)0.2 C (0.4 F)33 years14 of 100 (Routine)
7 August 2026Mount Stella Oregon, USdaily high max36.1 C (97.0 F)0.5 C (0.9 F)4 years5 of 100 (Routine)
7 August 2026Mount Stella Oregon, USdaily high min (Tie)19.4 C (66.9 F)tie4 years1 of 100 (Routine)
6 August 2026Mount Stella Oregon, USdaily high min21.1 C (70.0 F)3.3 C (5.9 F)20 years17 of 100 (Routine)
6 August 2026Mount Stella Oregon, USdaily high max36.7 C (98.1 F)2.8 C (5.0 F)20 years15 of 100 (Routine)
5 August 2026Mount Stella Oregon, USdaily high min21.1 C (70.0 F)2.8 C (5.0 F)13 years14 of 100 (Routine)
5 August 2026Mount Stella Oregon, USdaily high max36.7 C (98.1 F)2.3 C (4.1 F)7 years10 of 100 (Routine)
20 July 2026Mount Stella Oregon, USdaily high min18.9 C (66.0 F)0.6 C (1.1 F)1 year5 of 100 (Routine)
27 June 2026Mount Stella Oregon, USdaily low max12.8 C (55.0 F)0.8 C (1.4 F)29 years13 of 100 (Routine)
26 June 2026Mount Stella Oregon, USdaily low max (Tie)12.8 C (55.0 F)tie24 years2 of 100 (Routine)
16 June 2026Mount Stella Oregon, USdaily high max32.2 C (90.0 F)2.2 C (4.0 F)23 years13 of 100 (Routine)
16 June 2026Mount Stella Oregon, USdaily high min16.1 C (61.0 F)2.8 C (5.0 F)13 years13 of 100 (Routine)
15 June 2026Mount Stella Oregon, USdaily high min17.2 C (63.0 F)3.9 C (7.0 F)7 years14 of 100 (Routine)
15 June 2026Mount Stella Oregon, USdaily high max34.4 C (93.9 F)4.4 C (7.9 F)7 years12 of 100 (Routine)
14 June 2026Mount Stella Oregon, USdaily high max33.3 C (91.9 F)3.9 C (7.0 F)11 years12 of 100 (Routine)

Climate Trend

31 complete years, 1988 to 2025
Annual mean temperature at Mount Stella Oregon as warming stripes, 1988 to 2025 One stripe for each of 31 complete years at Mount Stella Oregon, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 1990, at 6.3 C (43.4 F), and the warmest was 2015, at 11.6 C (53.0 F). The strongest colour marks a difference of 3.0 C (5.4 F). 1988: 7.4 C, -1.9 C from the station mean1989: 6.5 C, -2.8 C from the station mean1990: 6.3 C, -3.0 C from the station mean1991: 7.1 C, -2.2 C from the station mean1992: 8.1 C, -1.2 C from the station mean1994: 6.5 C, -2.8 C from the station mean1995: 6.8 C, -2.6 C from the station mean1997: 8.5 C, -0.9 C from the station mean1999: 8.7 C, -0.6 C from the station mean2000: 8.8 C, -0.5 C from the station mean2001: 9.3 C, -0.1 C from the station mean2002: 9.5 C, +0.2 C from the station mean2005: 9.6 C, +0.3 C from the station mean2006: 10.1 C, +0.8 C from the station mean2007: 9.7 C, +0.4 C from the station mean2009: 10.3 C, +1.0 C from the station mean2011: 8.9 C, -0.4 C from the station mean2012: 9.5 C, +0.2 C from the station mean2013: 10.3 C, +1.0 C from the station mean2014: 10.9 C, +1.6 C from the station mean2015: 11.6 C, +2.3 C from the station mean2016: 10.1 C, +0.8 C from the station mean2017: 10.3 C, +1.0 C from the station mean2018: 10.2 C, +0.9 C from the station mean2019: 9.8 C, +0.5 C from the station mean2020: 10.6 C, +1.3 C from the station mean2021: 10.5 C, +1.2 C from the station mean2022: 10.8 C, +1.5 C from the station mean2023: 10.3 C, +0.9 C from the station mean2024: 10.5 C, +1.2 C from the station mean2025: 11.3 C, +2.0 C from the station mean19881995200020052010201520202025
One stripe for each of 31 complete years at Mount Stella Oregon, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 1990, at 6.3 C (43.4 F), and the warmest was 2015, at 11.6 C (53.0 F). The strongest colour marks a difference of 3.0 C (5.4 F).
Annual mean temperature at Mount Stella Oregon as warming stripes, 1988 to 2025
YearAnnual mean temperatureDifference from the station mean
19887.4 C-1.94 C
19896.5 C-2.77 C
19906.3 C-2.98 C
19917.1 C-2.23 C
19928.1 C-1.20 C
19946.5 C-2.79 C
19956.8 C-2.56 C
19978.5 C-0.86 C
19998.7 C-0.65 C
20008.8 C-0.49 C
20019.3 C-0.06 C
20029.5 C+0.18 C
20059.6 C+0.25 C
200610.1 C+0.76 C
20079.7 C+0.43 C
200910.3 C+0.97 C
20118.9 C-0.44 C
20129.5 C+0.17 C
201310.3 C+0.99 C
201410.9 C+1.58 C
201511.6 C+2.33 C
201610.1 C+0.82 C
201710.3 C+0.96 C
201810.2 C+0.89 C
20199.8 C+0.46 C
202010.6 C+1.26 C
202110.5 C+1.20 C
202210.8 C+1.46 C
202310.3 C+0.94 C
202410.5 C+1.19 C
202511.3 C+2.00 C

The annual mean temperature here has risen by 1.1 C (0.9 to 1.4) per decade over 1988 to 2025. In Fahrenheit: 2.0 F (1.6 to 2.4) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Mount Stella Oregon
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature1.1 C (0.9 to 1.4) per decade2.0 F (1.6 to 2.4) per decade1988 to 202531Rise
Mean daily maximum1.2 C (0.9 to 1.5) per decade2.2 F (1.7 to 2.7) per decade1988 to 202531Rise
Mean daily minimum1.0 C (0.9 to 1.2) per decade1.9 F (1.5 to 2.2) per decade1988 to 202531Rise

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

1985 to 2026
Yearly extremes at Mount Stella Oregon: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)200836.1 C (97.0 F)41
Coldest night (TNn)-24.5 C (-12.1 F)1990-11.1 C (12.0 F)41

Hottest day (TXx)

Hottest day (TXx) at Mount Stella Oregon by year The hottest day of the year at Mount Stella Oregon, 1985 to 2026. The record is 40.6 C (105.1 F) in 2008, marked on the chart; the median year is 36.1 C (97.0 F). 25303540451990200020102020Record: 40.6 C (105.1 F) in 2008
The hottest day of the year at Mount Stella Oregon, 1985 to 2026. The record is 40.6 C (105.1 F) in 2008, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Mount Stella Oregon by year
YearHottest day (TXx)
198534.7 C (94.5 F)
198732.7 C (90.9 F)
198833.6 C (92.5 F)
198927.7 C (81.9 F)
199031.9 C (89.4 F)
199131.2 C (88.2 F)
199233.9 C (93.0 F)
199331.2 C (88.2 F)
199433.9 C (93.0 F)
199530.4 C (86.7 F)
199632.3 C (90.1 F)
199732.2 C (90.0 F)
199837.8 C (100.0 F)
199934.4 C (93.9 F)
200032.2 C (90.0 F)
200134.4 C (93.9 F)
200238.3 C (100.9 F)
200337.8 C (100.0 F)
200430.6 C (87.1 F)
200535.0 C (95.0 F)
200638.9 C (102.0 F)
200738.3 C (100.9 F)
200840.6 C (105.1 F)
200938.9 C (102.0 F)
201037.8 C (100.0 F)
201132.8 C (91.0 F)
201235.6 C (96.1 F)
201337.2 C (99.0 F)
201436.7 C (98.1 F)
201538.9 C (102.0 F)
201637.8 C (100.0 F)
201738.9 C (102.0 F)
201836.1 C (97.0 F)
201934.4 C (93.9 F)
202036.7 C (98.1 F)
202137.2 C (99.0 F)
202240.6 C (105.1 F)
202337.8 C (100.0 F)
202440.0 C (104.0 F)
202537.2 C (99.0 F)
202636.7 C (98.1 F)

Coldest night (TNn)

Coldest night (TNn) at Mount Stella Oregon by year The coldest night of the year at Mount Stella Oregon, 1985 to 2026. The record is -24.5 C (-12.1 F) in 1990, marked on the chart; the median year is -11.1 C (12.0 F). -30-20-1001990200020102020Record: -24.5 C (-12.1 F) in 1990
The coldest night of the year at Mount Stella Oregon, 1985 to 2026. The record is -24.5 C (-12.1 F) in 1990, marked on the chart; the median year is -11.1 C (12.0 F).
Coldest night (TNn) at Mount Stella Oregon by year
YearColdest night (TNn)
1985-0.6 C (30.9 F)
1987-12.7 C (9.1 F)
1988-13.1 C (8.4 F)
1989-20.6 C (-5.1 F)
1990-24.5 C (-12.1 F)
1991-9.6 C (14.7 F)
1992-10.8 C (12.6 F)
1993-20.2 C (-4.4 F)
1994-13.1 C (8.4 F)
1995-10.8 C (12.6 F)
1996-13.9 C (7.0 F)
1997-13.9 C (7.0 F)
1998-16.7 C (1.9 F)
1999-10.6 C (12.9 F)
2000-6.1 C (21.0 F)
2001-8.9 C (16.0 F)
2002-11.7 C (10.9 F)
2003-9.4 C (15.1 F)
2004-6.7 C (19.9 F)
2005-6.7 C (19.9 F)
2006-10.6 C (12.9 F)
2007-12.8 C (9.0 F)
2008-11.7 C (10.9 F)
2009-12.8 C (9.0 F)
2010-22.8 C (-9.0 F)
2011-12.2 C (10.0 F)
2012-9.4 C (15.1 F)
2013-14.4 C (6.1 F)
2014-11.7 C (10.9 F)
2015-10.0 C (14.0 F)
2016-11.1 C (12.0 F)
2017-11.7 C (10.9 F)
2018-11.7 C (10.9 F)
2019-10.0 C (14.0 F)
2020-8.9 C (16.0 F)
2021-8.9 C (16.0 F)
2022-12.2 C (10.0 F)
2023-9.4 C (15.1 F)
2024-6.7 C (19.9 F)
2025-10.0 C (14.0 F)
2026-7.2 C (19.0 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

31 years with a frost

Across 31 years with a frost, the median last spring frost at Mount Stella Oregon falls on 8 June and the median first autumn frost on 6 October, which leaves a median of 126 days between them.

Fitted over all years, the growing season changes by +18.5 days per decade at this station.

Frost dates and growing season at Mount Stella Oregon
MeasureMedian, all yearsEarliest periodRecent period (1989 to 2025)Recent against earliestFitted trend
Last spring frost8 Junen/a8 Junen/a-8.3 days per decade
First autumn frost6 Octobern/a7 Octobern/a+10.2 days per decade
Growing days126 daysn/a127 daysn/a+18.5 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.

Download the Data

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