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Built 2026-10-15 (15 October 2026)

Grandad Oregon Weather Records (USR0000OGAD)

Record envelope, standing records and threshold days for Grandad Oregon (USR0000OGAD), Oregon, United States, with 39 years of record.

Key Facts for Grandad Oregon

  • Grandad Oregon (USR0000OGAD) is a weather station in Oregon, United States at 43.42 latitude and -122.58 longitude, 884 m (2,900 ft) above sea level.
  • The station reports from 1985 to 2023, 39 years of record.
  • 1,464 records set at Grandad Oregon still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Grandad Oregon set a daily record high maximum temperature of 31.7 C (89.1 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, -122.58 longitude.
  • Elevation: 884 m (2,900 ft).
  • Period of record: 1985 to 2023, 39 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

82 days at or beyond a record
Daily record high and record low at Grandad Oregon, with 2026 drawn through them The band shows the record high and record low for each calendar day at Grandad Oregon. The lines show the 2026 daily maximum and minimum. 82 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Grandad Oregon. The lines show the 2026 daily maximum and minimum. 82 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Grandad Oregon, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan22.8 C (73.0 F)-13.3 C (8.1 F)4.4 C (39.9 F)-13.3 C (8.1 F)
Feb23.9 C (75.0 F)-18.6 C (-1.5 F)10.6 C (51.1 F)-14.4 C (6.1 F)
Mar27.8 C (82.0 F)-10.6 C (12.9 F)16.1 C (61.0 F)-10.6 C (12.9 F)
Apr33.3 C (91.9 F)-8.9 C (16.0 F)18.3 C (64.9 F)-8.9 C (16.0 F)
May40.0 C (104.0 F)-2.8 C (27.0 F)29.4 C (84.9 F)-2.8 C (27.0 F)
Jun42.2 C (108.0 F)-3.3 C (26.1 F)35.0 C (95.0 F)2.2 C (36.0 F)
Jul42.8 C (109.0 F)3.7 C (38.7 F)36.7 C (98.1 F)7.2 C (45.0 F)
Aug42.8 C (109.0 F)3.7 C (38.7 F)37.8 C (100.0 F)7.2 C (45.0 F)
Sep41.1 C (106.0 F)0.6 C (33.1 F)33.9 C (93.0 F)5.6 C (42.1 F)
Oct33.9 C (93.0 F)-3.7 C (25.3 F)31.7 C (89.1 F)0.6 C (33.1 F)
Nov26.1 C (79.0 F)-10.4 C (13.3 F)n/an/a
Dec20.0 C (68.0 F)-18.2 C (-0.8 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Grandad Oregon by the year they were set 1,464 records at Grandad Oregon still stand. 2026 holds the most, with 129. 0501001501985: 541986: 351987: 341988: 411989: 361990: 431991: 401992: 311993: 311994: 461995: 431996: 411997: 241998: 181999: 442000: 292001: 312002: 242003: 462004: 302005: 362006: 302007: 292008: 512009: 332010: 232011: 162012: 242013: 282014: 232015: 342016: 362017: 452018: 192019: 192020: 182021: 152022: 372023: 312024: 322025: 352026: 129198519901995200020052010201520202025
1,464 records at Grandad Oregon still stand. 2026 holds the most, with 129.
Standing records at Grandad Oregon by the year they were set
Year setStanding records
198554
198635
198734
198841
198936
199043
199140
199231
199331
199446
199543
199641
199724
199818
199944
200029
200131
200224
200346
200430
200536
200630
200729
200851
200933
201023
201116
201224
201328
201423
201534
201636
201745
201819
201919
202018
202115
202237
202331
202432
202535
2026129

All-Time Record Progression

2 new records
When Grandad Oregon set new all-time records 2 all-time records were set at Grandad Oregon between 26 December 2025 and 7 January 2026. Each dot is a new record. Record low maximum temperature26 December 2025: Record low maximum temperature -8.9 C (16.0 F)7 January 2026: Record low maximum temperature -10.0 C (14.0 F)2025
2 all-time records were set at Grandad Oregon between 26 December 2025 and 7 January 2026. Each dot is a new record.
When Grandad Oregon set new all-time records
DateKindDetail
2025-12-26Record low maximum temperatureRecord low maximum temperature -8.9 C (16.0 F)
2026-01-07Record low maximum temperatureRecord low maximum temperature -10.0 C (14.0 F)

Period of Record Coverage

1985 to 2026
Days with data per year at Grandad Oregon 42 years of record at Grandad Oregon, 1985 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1985, 1986, 1987, 1996, 1998, 2002, 2009, 2026. 1985: 267 of 365 days1986: 283 of 365 days1987: 287 of 365 days1988: 363 of 366 days1989: 365 of 365 days1990: 364 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 357 of 365 days1994: 362 of 365 days1995: 358 of 365 days1996: 329 of 366 days1997: 334 of 365 days1998: 262 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 352 of 365 days2002: 260 of 365 days2003: 360 of 365 days2004: 362 of 366 days2005: 361 of 365 days2006: 333 of 365 days2007: 355 of 365 days2008: 346 of 366 days2009: 322 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 364 of 366 days2017: 362 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 365 of 366 days2021: 364 of 365 days2022: 364 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 364 of 365 days2026: 281 of 365 days1990200020102020
42 years of record at Grandad Oregon, 1985 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1985, 1986, 1987, 1996, 1998, 2002, 2009, 2026.
Days with data per year at Grandad Oregon
YearDays with dataShare of yearComplete
198526773%No
198628378%No
198728779%No
198836399%Yes
1989365100%Yes
1990364100%Yes
1991365100%Yes
1992366100%Yes
199335798%Yes
199436299%Yes
199535898%Yes
199632990%No
199733492%Yes
199826272%No
1999365100%Yes
2000366100%Yes
200135296%Yes
200226071%No
200336099%Yes
200436299%Yes
200536199%Yes
200633391%Yes
200735597%Yes
200834695%Yes
200932288%No
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
201636499%Yes
201736299%Yes
2018365100%Yes
2019365100%Yes
2020365100%Yes
2021364100%Yes
2022364100%Yes
2023365100%Yes
2024366100%Yes
2025364100%Yes
202628177%No

Latest Records

20
Latest records at Grandad Oregon
DateStationRecordValueBeat old record byOld record stoodSignificance
7 October 2026Grandad Oregon, USdaily high max (Provisional)31.7 C (89.1 F)1.1 C (2.0 F)29 years13 of 100 (Routine)
5 October 2026Grandad Oregon, USdaily high min (Provisional)14.4 C (57.9 F)2.2 C (4.0 F)12 years13 of 100 (Routine)
4 October 2026Grandad Oregon, USdaily high min (Provisional)13.3 C (55.9 F)0.2 C (0.4 F)32 years13 of 100 (Routine)
2 September 2026Grandad Oregon, USdaily low max (Provisional)13.3 C (55.9 F)0.6 C (1.1 F)25 years11 of 100 (Routine)
21 August 2026Grandad Oregon, USdaily high min (Provisional)17.2 C (63.0 F)1.1 C (2.0 F)15 years11 of 100 (Routine)
6 August 2026Grandad Oregon, USdaily high min17.8 C (64.0 F)0.6 C (1.1 F)28 years13 of 100 (Routine)
21 July 2026Grandad Oregon, USdaily high min20.6 C (69.1 F)0.8 C (1.4 F)32 years15 of 100 (Routine)
28 June 2026Grandad Oregon, USdaily low max14.4 C (57.9 F)0.3 C (0.5 F)40 years16 of 100 (Routine)
27 June 2026Grandad Oregon, USdaily low max11.7 C (53.1 F)3.3 C (5.9 F)7 years11 of 100 (Routine)
16 June 2026Grandad Oregon, USdaily high min15.6 C (60.1 F)3.4 C (6.1 F)28 years21 of 100 (Routine)
15 June 2026Grandad Oregon, USdaily high min16.7 C (62.1 F)5.1 C (9.2 F)37 years29 of 100 (Routine)
15 June 2026Grandad Oregon, USdaily high max35.0 C (95.0 F)4.4 C (7.9 F)7 years12 of 100 (Routine)
14 June 2026Grandad Oregon, USdaily high min16.7 C (62.1 F)4.5 C (8.1 F)27 years24 of 100 (Routine)
14 June 2026Grandad Oregon, USdaily high max35.0 C (95.0 F)4.4 C (7.9 F)27 years18 of 100 (Routine)
13 June 2026Grandad Oregon, USdaily high max33.3 C (91.9 F)0.1 C (0.2 F)40 years16 of 100 (Routine)
18 May 2026Grandad Oregon, USdaily low min (Tie)-1.7 C (28.9 F)tie23 years2 of 100 (Routine)
17 May 2026Grandad Oregon, USmonthly low min-2.8 C (27.0 F)0.6 C (1.1 F)38 years26 of 100 (Routine)
16 May 2026Grandad Oregon, USdaily low min-1.1 C (30.0 F)1.1 C (2.0 F)28 years14 of 100 (Routine)
16 May 2026Grandad Oregon, USdaily low max4.4 C (39.9 F)4.5 C (8.1 F)8 years12 of 100 (Routine)
15 May 2026Grandad Oregon, USdaily low min0.6 C (33.1 F)0.5 C (0.9 F)28 years13 of 100 (Routine)

Climate Trend

31 complete years, 1988 to 2025
Annual mean temperature at Grandad Oregon as warming stripes, 1988 to 2025 One stripe for each of 31 complete years at Grandad Oregon, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 11.1 C (51.9 F); red stripes are warmer. The coolest year was 1993, at 9.4 C (48.9 F), and the warmest was 2015, at 12.5 C (54.6 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1988: 10.7 C, -0.3 C from the station mean1989: 10.1 C, -1.0 C from the station mean1990: 10.2 C, -0.9 C from the station mean1991: 10.9 C, -0.2 C from the station mean1992: 11.5 C, +0.4 C from the station mean1993: 9.4 C, -1.7 C from the station mean1994: 9.8 C, -1.3 C from the station mean1995: 10.6 C, -0.5 C from the station mean1999: 10.8 C, -0.3 C from the station mean2000: 10.9 C, -0.1 C from the station mean2001: 11.3 C, +0.2 C from the station mean2003: 11.9 C, +0.9 C from the station mean2004: 12.0 C, +0.9 C from the station mean2005: 11.9 C, +0.8 C from the station mean2007: 11.0 C, -0.1 C from the station mean2010: 10.7 C, -0.4 C from the station mean2011: 10.0 C, -1.0 C from the station mean2012: 10.5 C, -0.6 C from the station mean2013: 10.9 C, -0.2 C from the station mean2014: 12.1 C, +1.0 C from the station mean2015: 12.5 C, +1.5 C from the station mean2016: 11.4 C, +0.3 C from the station mean2017: 11.0 C, 0.0 C from the station mean2018: 11.4 C, +0.4 C from the station mean2019: 10.9 C, -0.2 C from the station mean2020: 11.2 C, +0.2 C from the station mean2021: 11.5 C, +0.4 C from the station mean2022: 11.5 C, +0.4 C from the station mean2023: 11.3 C, +0.3 C from the station mean2024: 11.7 C, +0.6 C from the station mean2025: 11.6 C, +0.5 C from the station mean19881995200020052010201520202025
One stripe for each of 31 complete years at Grandad Oregon, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 11.1 C (51.9 F); red stripes are warmer. The coolest year was 1993, at 9.4 C (48.9 F), and the warmest was 2015, at 12.5 C (54.6 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Grandad Oregon as warming stripes, 1988 to 2025
YearAnnual mean temperatureDifference from the station mean
198810.7 C-0.34 C
198910.1 C-0.97 C
199010.2 C-0.86 C
199110.9 C-0.22 C
199211.5 C+0.42 C
19939.4 C-1.67 C
19949.8 C-1.28 C
199510.6 C-0.47 C
199910.8 C-0.29 C
200010.9 C-0.15 C
200111.3 C+0.19 C
200311.9 C+0.85 C
200412.0 C+0.94 C
200511.9 C+0.79 C
200711.0 C-0.08 C
201010.7 C-0.42 C
201110.0 C-1.04 C
201210.5 C-0.56 C
201310.9 C-0.18 C
201412.1 C+1.04 C
201512.5 C+1.46 C
201611.4 C+0.29 C
201711.0 C-0.04 C
201811.4 C+0.37 C
201910.9 C-0.22 C
202011.2 C+0.15 C
202111.5 C+0.38 C
202211.5 C+0.43 C
202311.3 C+0.25 C
202411.7 C+0.60 C
202511.6 C+0.54 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1988 to 2025. In Fahrenheit: 0.5 F (0.2 to 0.9) 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 Grandad Oregon
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.3 C (0.1 to 0.5) per decade0.5 F (0.2 to 0.9) per decade1988 to 202531Rise
Mean daily maximum0.31 C (0.02 to 0.60) per decade0.56 F (0.04 to 1.08) per decade1988 to 202531Rise
Mean daily minimum0.3 C (0.1 to 0.4) per decade0.5 F (0.2 to 0.8) 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 Grandad Oregon: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.8 C (109.0 F)200338.3 C (100.9 F)42
Coldest night (TNn)-18.6 C (-1.5 F)1989-7.9 C (17.7 F)42

Hottest day (TXx)

Hottest day (TXx) at Grandad Oregon by year The hottest day of the year at Grandad Oregon, 1985 to 2026. The record is 42.8 C (109.0 F) in 2003, marked on the chart; the median year is 38.3 C (100.9 F). 32.53537.54042.5451990200020102020Record: 42.8 C (109.0 F) in 2003
The hottest day of the year at Grandad Oregon, 1985 to 2026. The record is 42.8 C (109.0 F) in 2003, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Grandad Oregon by year
YearHottest day (TXx)
198535.9 C (96.6 F)
198636.3 C (97.3 F)
198737.4 C (99.3 F)
198841.0 C (105.8 F)
198933.6 C (92.5 F)
199038.2 C (100.8 F)
199136.7 C (98.1 F)
199237.4 C (99.3 F)
199334.3 C (93.7 F)
199437.1 C (98.8 F)
199535.5 C (95.9 F)
199638.9 C (102.0 F)
199735.0 C (95.0 F)
199840.0 C (104.0 F)
199936.7 C (98.1 F)
200037.2 C (99.0 F)
200138.3 C (100.9 F)
200241.1 C (106.0 F)
200342.8 C (109.0 F)
200439.4 C (102.9 F)
200538.3 C (100.9 F)
200640.6 C (105.1 F)
200740.6 C (105.1 F)
200842.8 C (109.0 F)
200940.0 C (104.0 F)
201039.4 C (102.9 F)
201135.0 C (95.0 F)
201237.8 C (100.0 F)
201337.2 C (99.0 F)
201436.1 C (97.0 F)
201538.9 C (102.0 F)
201639.4 C (102.9 F)
201741.7 C (107.1 F)
201837.2 C (99.0 F)
201936.7 C (98.1 F)
202040.0 C (104.0 F)
202142.2 C (108.0 F)
202240.6 C (105.1 F)
202341.7 C (107.1 F)
202441.1 C (106.0 F)
202540.0 C (104.0 F)
202637.8 C (100.0 F)

Coldest night (TNn)

Coldest night (TNn) at Grandad Oregon by year The coldest night of the year at Grandad Oregon, 1985 to 2026. The record is -18.6 C (-1.5 F) in 1989, marked on the chart; the median year is -7.9 C (17.7 F). -20-15-10-501990200020102020Record: -18.6 C (-1.5 F) in 1989
The coldest night of the year at Grandad Oregon, 1985 to 2026. The record is -18.6 C (-1.5 F) in 1989, marked on the chart; the median year is -7.9 C (17.7 F).
Coldest night (TNn) at Grandad Oregon by year
YearColdest night (TNn)
1985-10.4 C (13.3 F)
1986-5.7 C (21.7 F)
1987-8.1 C (17.4 F)
1988-7.3 C (18.9 F)
1989-18.6 C (-1.5 F)
1990-18.2 C (-0.8 F)
1991-6.1 C (21.0 F)
1992-8.4 C (16.9 F)
1993-10.8 C (12.6 F)
1994-9.2 C (15.4 F)
1995-11.6 C (11.1 F)
1996-8.4 C (16.9 F)
1997-5.0 C (23.0 F)
1998-14.4 C (6.1 F)
1999-5.6 C (21.9 F)
2000-3.3 C (26.1 F)
2001-6.1 C (21.0 F)
2002-5.0 C (23.0 F)
2003-5.0 C (23.0 F)
2004-4.4 C (24.1 F)
2005-5.0 C (23.0 F)
2006-7.8 C (18.0 F)
2007-7.8 C (18.0 F)
2008-11.1 C (12.0 F)
2009-11.7 C (10.9 F)
2010-8.9 C (16.0 F)
2011-12.2 C (10.0 F)
2012-6.7 C (19.9 F)
2013-13.9 C (7.0 F)
2014-8.3 C (17.1 F)
2015-6.7 C (19.9 F)
2016-8.3 C (17.1 F)
2017-10.6 C (12.9 F)
2018-7.2 C (19.0 F)
2019-7.2 C (19.0 F)
2020-5.6 C (21.9 F)
2021-5.6 C (21.9 F)
2022-11.1 C (12.0 F)
2023-7.8 C (18.0 F)
2024-3.9 C (25.0 F)
2025-13.3 C (8.1 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

31 years with a frost

Across 31 years with a frost, the median last spring frost at Grandad Oregon falls on 4 May and the median first autumn frost on 27 October, which leaves a median of 180 days between them.

Fitted over all years, the growing season changes by +3.1 days per decade at this station.

Frost dates and growing season at Grandad Oregon
MeasureMedian, all yearsEarliest periodRecent period (1989 to 2025)Recent against earliestFitted trend
Last spring frost4 Mayn/a3 Mayn/a-3.5 days per decade
First autumn frost27 Octobern/a27 Octobern/a-0.4 days per decade
Growing days180 daysn/a178 daysn/a+3.1 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 Grandad Oregon standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Grandad 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).