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Fort Rock Oregon Weather Records (USR0000OFOR)

Record envelope, standing records and threshold days for Fort Rock Oregon (USR0000OFOR), Oregon, United States, with 38 years of record.

Key Facts for Fort Rock Oregon

  • Fort Rock Oregon (USR0000OFOR) is a weather station in Oregon, United States at 43.42 latitude and -120.84 longitude, 1,350 m (4,430 ft) above sea level.
  • The station reports from 1986 to 2023, 38 years of record.
  • 1,464 records set at Fort Rock Oregon still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Fort Rock Oregon tied a daily record high maximum temperature of 30.6 C (87.1 F) on 7 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, 43.42 latitude, -120.84 longitude.
  • Elevation: 1,350 m (4,430 ft).
  • Period of record: 1986 to 2023, 38 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

25 days at or beyond a record
Daily record high and record low at Fort Rock Oregon, with 2026 drawn through them The band shows the record high and record low for each calendar day at Fort Rock Oregon. The lines show the 2026 daily maximum and minimum. 25 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 Fort Rock Oregon. The lines show the 2026 daily maximum and minimum. 25 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Fort Rock Oregon, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.8 C (64.0 F)-30.6 C (-23.1 F)14.4 C (57.9 F)-14.4 C (6.1 F)
Feb21.1 C (70.0 F)-31.7 C (-25.1 F)18.3 C (64.9 F)-14.4 C (6.1 F)
Mar25.6 C (78.1 F)-18.3 C (-0.9 F)25.6 C (78.1 F)-8.9 C (16.0 F)
Apr28.3 C (82.9 F)-12.8 C (9.0 F)22.2 C (72.0 F)-11.1 C (12.0 F)
May34.4 C (93.9 F)-10.6 C (12.9 F)28.9 C (84.0 F)-2.8 C (27.0 F)
Jun39.4 C (102.9 F)-6.1 C (21.0 F)32.2 C (90.0 F)-2.8 C (27.0 F)
Jul41.1 C (106.0 F)-4.4 C (24.1 F)35.0 C (95.0 F)-1.7 C (28.9 F)
Aug38.9 C (102.0 F)-2.8 C (27.0 F)36.7 C (98.1 F)-1.7 C (28.9 F)
Sep38.3 C (100.9 F)-8.9 C (16.0 F)30.0 C (86.0 F)-2.2 C (28.0 F)
Oct32.8 C (91.0 F)-20.0 C (-4.0 F)30.6 C (87.1 F)-5.0 C (23.0 F)
Nov23.3 C (73.9 F)-26.1 C (-15.0 F)n/an/a
Dec17.2 C (63.0 F)-32.2 C (-26.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Fort Rock Oregon by the year they were set 1,464 records at Fort Rock Oregon still stand. 1993 holds the most, with 59. 02040601986: 31987: 491988: 361989: 511990: 511991: 301992: 561993: 591994: 371995: 421996: 481997: 241998: 281999: 492000: 242001: 232002: 372003: 432004: 172005: 212006: 252007: 342008: 452009: 382010: 322011: 362012: 402013: 372014: 342015: 412016: 402017: 452018: 242019: 352020: 272021: 332022: 512023: 312024: 282025: 372026: 23198619911996200120062011201620212026
1,464 records at Fort Rock Oregon still stand. 1993 holds the most, with 59.
Standing records at Fort Rock Oregon by the year they were set
Year setStanding records
19863
198749
198836
198951
199051
199130
199256
199359
199437
199542
199648
199724
199828
199949
200024
200123
200237
200343
200417
200521
200625
200734
200845
200938
201032
201136
201240
201337
201434
201541
201640
201745
201824
201935
202027
202133
202251
202331
202428
202537
202623

All-Time Record Progression

1 new records
When Fort Rock Oregon set new all-time records 1 all-time records were set at Fort Rock Oregon between 29 June 2021 and 29 June 2021. Each dot is a new record. Record high minimum temperature29 June 2021: Record high minimum temperature 21.1 C (70.0 F)
1 all-time records were set at Fort Rock Oregon between 29 June 2021 and 29 June 2021. Each dot is a new record.
When Fort Rock Oregon set new all-time records
DateKindDetail
2021-06-29Record high minimum temperatureRecord high minimum temperature 21.1 C (70.0 F)

Period of Record Coverage

1986 to 2026
Days with data per year at Fort Rock Oregon 41 years of record at Fort Rock Oregon, 1986 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1986, 2026. 1986: 92 of 365 days1987: 354 of 365 days1988: 363 of 366 days1989: 365 of 365 days1990: 364 of 365 days1991: 363 of 365 days1992: 365 of 366 days1993: 357 of 365 days1994: 362 of 365 days1995: 362 of 365 days1996: 365 of 366 days1997: 363 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 364 of 365 days2010: 365 of 365 days2011: 364 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 364 of 365 days2015: 365 of 365 days2016: 364 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 365 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 284 of 365 days1990200020102020
41 years of record at Fort Rock Oregon, 1986 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1986, 2026.
Days with data per year at Fort Rock Oregon
YearDays with dataShare of yearComplete
19869225%No
198735497%Yes
198836399%Yes
1989365100%Yes
1990364100%Yes
199136399%Yes
1992365100%Yes
199335798%Yes
199436299%Yes
199536299%Yes
1996365100%Yes
199736399%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004365100%Yes
2005365100%Yes
2006364100%Yes
2007365100%Yes
2008366100%Yes
2009364100%Yes
2010365100%Yes
2011364100%Yes
2012366100%Yes
2013365100%Yes
2014364100%Yes
2015365100%Yes
201636499%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020365100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628478%No

Latest Records

20
Latest records at Fort Rock Oregon
DateStationRecordValueBeat old record byOld record stoodSignificance
7 October 2026Fort Rock Oregon, USdaily high max (Tie, Provisional)30.6 C (87.1 F)tie29 years3 of 100 (Routine)
6 October 2026Fort Rock Oregon, USdaily high max (Tie, Provisional)29.4 C (84.9 F)tie12 years1 of 100 (Routine)
5 October 2026Fort Rock Oregon, USdaily high max (Tie, Provisional)28.9 C (84.0 F)tie35 years3 of 100 (Routine)
4 October 2026Fort Rock Oregon, USdaily high max (Provisional)30.0 C (86.0 F)2.2 C (4.0 F)12 years10 of 100 (Routine)
3 October 2026Fort Rock Oregon, USdaily high max (Provisional)29.4 C (84.9 F)0.5 C (0.9 F)32 years13 of 100 (Routine)
13 September 2026Fort Rock Oregon, USdaily low max (Provisional)13.3 C (55.9 F)0.6 C (1.1 F)21 years10 of 100 (Routine)
3 September 2026Fort Rock Oregon, USdaily low max (Provisional)11.1 C (52.0 F)4.5 C (8.1 F)25 years18 of 100 (Routine)
30 August 2026Fort Rock Oregon, USdaily low min (Tie, Provisional)-1.7 C (28.9 F)tie20 years2 of 100 (Routine)
22 August 2026Fort Rock Oregon, USdaily high min (Provisional)11.1 C (52.0 F)1.7 C (3.1 F)35 years18 of 100 (Routine)
21 August 2026Fort Rock Oregon, USdaily high min (Tie, Provisional)11.7 C (53.1 F)tie3 years1 of 100 (Routine)
7 August 2026Fort Rock Oregon, USdaily high max36.7 C (98.1 F)0.6 C (1.1 F)36 years15 of 100 (Routine)
20 July 2026Fort Rock Oregon, USdaily high min16.1 C (61.0 F)3.3 C (5.9 F)3 years13 of 100 (Routine)
14 July 2026Fort Rock Oregon, USdaily high min (Tie)16.1 C (61.0 F)tie1 year1 of 100 (Routine)
1 July 2026Fort Rock Oregon, USdaily low min-1.7 C (28.9 F)1.1 C (2.0 F)15 years11 of 100 (Routine)
27 June 2026Fort Rock Oregon, USdaily low max15.0 C (59.0 F)1.7 C (3.1 F)29 years14 of 100 (Routine)
16 June 2026Fort Rock Oregon, USdaily high max31.1 C (88.0 F)0.5 C (0.9 F)23 years10 of 100 (Routine)
15 June 2026Fort Rock Oregon, USdaily high max32.2 C (90.0 F)0.5 C (0.9 F)24 years11 of 100 (Routine)
2 May 2026Fort Rock Oregon, USdaily high min5.6 C (42.1 F)1.2 C (2.2 F)32 years16 of 100 (Routine)
1 May 2026Fort Rock Oregon, USdaily high min (Tie)5.0 C (41.0 F)tie28 years3 of 100 (Routine)
27 April 2026Fort Rock Oregon, USdaily low min (Tie)-5.6 C (21.9 F)tie35 years3 of 100 (Routine)

Climate Trend

39 complete years, 1987 to 2025
Annual mean temperature at Fort Rock Oregon as warming stripes, 1987 to 2025 One stripe for each of 39 complete years at Fort Rock Oregon, 1987 to 2025. Blue stripes are years cooler than the station's own mean of 7.6 C (45.6 F); red stripes are warmer. The coolest year was 1993, at 5.8 C (42.4 F), and the warmest was 2014, at 8.8 C (47.9 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1987: 7.5 C, 0.0 C from the station mean1988: 7.5 C, -0.1 C from the station mean1989: 6.3 C, -1.2 C from the station mean1990: 6.9 C, -0.6 C from the station mean1991: 7.5 C, 0.0 C from the station mean1992: 8.3 C, +0.8 C from the station mean1993: 5.8 C, -1.8 C from the station mean1994: 7.3 C, -0.3 C from the station mean1995: 7.4 C, -0.1 C from the station mean1996: 7.3 C, -0.3 C from the station mean1997: 7.3 C, -0.3 C from the station mean1998: 7.5 C, -0.1 C from the station mean1999: 7.1 C, -0.5 C from the station mean2000: 7.5 C, -0.1 C from the station mean2001: 7.7 C, +0.1 C from the station mean2002: 7.7 C, +0.1 C from the station mean2003: 8.4 C, +0.8 C from the station mean2004: 7.9 C, +0.4 C from the station mean2005: 7.3 C, -0.3 C from the station mean2006: 7.8 C, +0.2 C from the station mean2007: 7.5 C, -0.1 C from the station mean2008: 7.1 C, -0.5 C from the station mean2009: 7.6 C, 0.0 C from the station mean2010: 7.5 C, -0.1 C from the station mean2011: 6.7 C, -0.9 C from the station mean2012: 7.7 C, +0.1 C from the station mean2013: 7.5 C, -0.1 C from the station mean2014: 8.8 C, +1.2 C from the station mean2015: 8.4 C, +0.8 C from the station mean2016: 7.8 C, +0.2 C from the station mean2017: 7.6 C, 0.0 C from the station mean2018: 7.8 C, +0.2 C from the station mean2019: 7.1 C, -0.4 C from the station mean2020: 8.0 C, +0.4 C from the station mean2021: 8.4 C, +0.8 C from the station mean2022: 7.6 C, 0.0 C from the station mean2023: 7.6 C, +0.1 C from the station mean2024: 8.1 C, +0.5 C from the station mean2025: 8.6 C, +1.0 C from the station mean198719901995200020052010201520202025
One stripe for each of 39 complete years at Fort Rock Oregon, 1987 to 2025. Blue stripes are years cooler than the station's own mean of 7.6 C (45.6 F); red stripes are warmer. The coolest year was 1993, at 5.8 C (42.4 F), and the warmest was 2014, at 8.8 C (47.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Fort Rock Oregon as warming stripes, 1987 to 2025
YearAnnual mean temperatureDifference from the station mean
19877.5 C-0.04 C
19887.5 C-0.11 C
19896.3 C-1.22 C
19906.9 C-0.63 C
19917.5 C-0.03 C
19928.3 C+0.76 C
19935.8 C-1.80 C
19947.3 C-0.28 C
19957.4 C-0.14 C
19967.3 C-0.25 C
19977.3 C-0.29 C
19987.5 C-0.06 C
19997.1 C-0.49 C
20007.5 C-0.10 C
20017.7 C+0.13 C
20027.7 C+0.11 C
20038.4 C+0.79 C
20047.9 C+0.38 C
20057.3 C-0.27 C
20067.8 C+0.19 C
20077.5 C-0.06 C
20087.1 C-0.47 C
20097.6 C-0.01 C
20107.5 C-0.10 C
20116.7 C-0.91 C
20127.7 C+0.11 C
20137.5 C-0.06 C
20148.8 C+1.25 C
20158.4 C+0.82 C
20167.8 C+0.22 C
20177.6 C+0.03 C
20187.8 C+0.22 C
20197.1 C-0.44 C
20208.0 C+0.43 C
20218.4 C+0.79 C
20227.6 C-0.01 C
20237.6 C+0.07 C
20248.1 C+0.55 C
20258.6 C+1.03 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.4) per decade over 1987 to 2025. In Fahrenheit: 0.4 F (0.2 to 0.7) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Fort Rock Oregon
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.4) per decade0.4 F (0.2 to 0.7) per decade1987 to 202539Rise
Mean daily maximum0.3 C (0.1 to 0.5) per decade0.5 F (0.2 to 0.8) per decade1987 to 202539Rise
Mean daily minimum0.20 C (0.03 to 0.37) per decade0.36 F (0.05 to 0.67) per decade1987 to 202539Rise

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

1986 to 2026
Yearly extremes at Fort Rock Oregon: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)200236.7 C (98.1 F)41
Coldest night (TNn)-32.2 C (-26.0 F)1990-21.7 C (-7.1 F)41

Hottest day (TXx)

Hottest day (TXx) at Fort Rock Oregon by year The hottest day of the year at Fort Rock Oregon, 1986 to 2026. The record is 41.1 C (106.0 F) in 2002, marked on the chart; the median year is 36.7 C (98.1 F). 25303540451990200020102020Record: 41.1 C (106.0 F) in 2002
The hottest day of the year at Fort Rock Oregon, 1986 to 2026. The record is 41.1 C (106.0 F) in 2002, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Fort Rock Oregon by year
YearHottest day (TXx)
198626.7 C (80.1 F)
198736.7 C (98.1 F)
198837.2 C (99.0 F)
198933.3 C (91.9 F)
199036.7 C (98.1 F)
199136.7 C (98.1 F)
199237.2 C (99.0 F)
199334.4 C (93.9 F)
199437.2 C (99.0 F)
199534.4 C (93.9 F)
199636.1 C (97.0 F)
199735.0 C (95.0 F)
199838.3 C (100.9 F)
199936.1 C (97.0 F)
200036.7 C (98.1 F)
200135.0 C (95.0 F)
200241.1 C (106.0 F)
200340.6 C (105.1 F)
200436.1 C (97.0 F)
200537.2 C (99.0 F)
200637.8 C (100.0 F)
200740.0 C (104.0 F)
200838.9 C (102.0 F)
200937.2 C (99.0 F)
201037.2 C (99.0 F)
201135.0 C (95.0 F)
201236.7 C (98.1 F)
201338.9 C (102.0 F)
201436.7 C (98.1 F)
201537.2 C (99.0 F)
201636.1 C (97.0 F)
201738.3 C (100.9 F)
201838.3 C (100.9 F)
201933.9 C (93.0 F)
202037.8 C (100.0 F)
202139.4 C (102.9 F)
202238.3 C (100.9 F)
202336.7 C (98.1 F)
202438.9 C (102.0 F)
202536.7 C (98.1 F)
202636.7 C (98.1 F)

Coldest night (TNn)

Coldest night (TNn) at Fort Rock Oregon by year The coldest night of the year at Fort Rock Oregon, 1986 to 2026. The record is -32.2 C (-26.0 F) in 1990, marked on the chart; the median year is -21.7 C (-7.1 F). -40-30-20-101990200020102020Record: -32.2 C (-26.0 F) in 1990
The coldest night of the year at Fort Rock Oregon, 1986 to 2026. The record is -32.2 C (-26.0 F) in 1990, marked on the chart; the median year is -21.7 C (-7.1 F).
Coldest night (TNn) at Fort Rock Oregon by year
YearColdest night (TNn)
1986-11.7 C (10.9 F)
1987-25.0 C (-13.0 F)
1988-24.4 C (-11.9 F)
1989-31.7 C (-25.1 F)
1990-32.2 C (-26.0 F)
1991-18.9 C (-2.0 F)
1992-25.0 C (-13.0 F)
1993-26.1 C (-15.0 F)
1994-18.9 C (-2.0 F)
1995-17.8 C (0.0 F)
1996-19.4 C (-2.9 F)
1997-16.7 C (1.9 F)
1998-23.9 C (-11.0 F)
1999-21.1 C (-6.0 F)
2000-16.7 C (1.9 F)
2001-17.2 C (1.0 F)
2002-20.0 C (-4.0 F)
2003-17.8 C (0.0 F)
2004-16.1 C (3.0 F)
2005-23.3 C (-9.9 F)
2006-19.4 C (-2.9 F)
2007-20.0 C (-4.0 F)
2008-25.0 C (-13.0 F)
2009-28.3 C (-18.9 F)
2010-22.8 C (-9.0 F)
2011-26.7 C (-16.1 F)
2012-18.9 C (-2.0 F)
2013-31.7 C (-25.1 F)
2014-22.8 C (-9.0 F)
2015-23.3 C (-9.9 F)
2016-23.3 C (-9.9 F)
2017-30.6 C (-23.1 F)
2018-21.7 C (-7.1 F)
2019-21.1 C (-6.0 F)
2020-16.7 C (1.9 F)
2021-17.2 C (1.0 F)
2022-22.8 C (-9.0 F)
2023-21.7 C (-7.1 F)
2024-18.9 C (-2.0 F)
2025-25.6 C (-14.1 F)
2026-14.4 C (6.1 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

39 years with a frost

Across 39 years with a frost, the median last spring frost at Fort Rock Oregon falls on 21 June and the median first autumn frost on 23 August, which leaves a median of 67 days between them.

Fitted over all years, the growing season changes by +11.6 days per decade at this station.

Frost dates and growing season at Fort Rock Oregon
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost21 Junen/a20 Junen/a-1.4 days per decade
First autumn frost23 Augustn/a26 Augustn/a+10.2 days per decade
Growing days67 daysn/a70 daysn/a+11.6 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 Fort Rock Oregon standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Fort Rock 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).