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Built 2026-10-16 (16 October 2026)

Signal Tree Oregon Threshold Days by Year

9 fixed thresholds counted per year at Signal Tree Oregon (USR0000OSIG): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Signal Tree Oregon Thresholds

  • Signal Tree Oregon: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 1996 with 21.
  • Signal Tree Oregon: days with a maximum temperature at or below 0 C (32 F) in 33 years, most in 1998 with 21.
  • Signal Tree Oregon: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 2011 with 118.
  • Signal Tree Oregon: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 2003 with 11.
  • 9 fixed thresholds have at least one qualifying day at Signal Tree Oregon.
33 years with a qualifying day
Days at or above 30 C (86 F) per year at Signal Tree Oregon Days per year at Signal Tree Oregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 1996. 01020301991: 141992: 81996: 211997: 31998: 151999: 82000: 12001: 42002: 182003: 202004: 82005: 132006: 152007: 52008: 162009: 152010: 122011: 132012: 102013: 112014: 132015: 132016: 62017: 132018: 82019: 32020: 62021: 102022: 122023: 72024: 122025: 122026: 6199119982002200620102014201820222026
Days per year at Signal Tree Oregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 1996.
Days at or above 30 C (86 F) per year at Signal Tree Oregon
YearDaysDecade average
19911411.5
1992811.5
19962111.5
1997311.5
19981511.5
1999811.5
2000111.5
2001411.5
20021811.5
20032011.5
2004811.5
20051311.5
20061511.5
2007511.5
20081611.5
20091511.5
20101210.2
20111310.2
20121010.2
20131110.2
20141310.2
20151310.2
2016610.2
20171310.2
2018810.2
2019310.2
202069.3
2021109.3
2022129.3
202379.3
2024129.3
2025129.3
202669.3
First to last qualifying date each year at Signal Tree Oregon For each year, a bar from the first to the last day at Signal Tree Oregon meeting 30 C (86 F). 1991: 2 July 1991 to 14 October 19911992: 22 June 1992 to 26 August 19921996: 2 June 1996 to 9 October 19961997: 12 August 1997 to 24 September 19971998: 25 July 1998 to 6 September 19981999: 12 July 1999 to 22 September 19992000: 27 June 2000 to 27 June 20002001: 22 May 2001 to 1 October 20012002: 12 June 2002 to 22 September 20022003: 5 June 2003 to 27 September 20032004: 17 June 2004 to 30 August 20042005: 17 July 2005 to 25 August 20052006: 15 May 2006 to 1 September 20062007: 10 July 2007 to 10 September 20072008: 16 May 2008 to 29 September 20082009: 4 July 2009 to 27 September 20092010: 7 July 2010 to 30 September 20102011: 20 August 2011 to 29 September 20112012: 4 August 2012 to 17 September 20122013: 1 July 2013 to 11 September 20132014: 14 May 2014 to 6 October 20142015: 8 June 2015 to 11 September 20152016: 4 June 2016 to 26 September 20162017: 24 June 2017 to 4 September 20172018: 12 July 2018 to 27 September 20182019: 11 June 2019 to 27 August 20192020: 26 July 2020 to 9 September 20202021: 26 June 2021 to 24 September 20212022: 26 June 2022 to 10 September 20222023: 14 July 2023 to 15 September 20232024: 5 July 2024 to 24 September 20242025: 9 June 2025 to 4 September 20252026: 14 June 2026 to 9 September 20261991199920042009201420192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Signal Tree Oregon meeting 30 C (86 F).
First to last qualifying date each year at Signal Tree Oregon
YearFirst dateLast date
19911991-07-021991-10-14
19921992-06-221992-08-26
19961996-06-021996-10-09
19971997-08-121997-09-24
19981998-07-251998-09-06
19991999-07-121999-09-22
20002000-06-272000-06-27
20012001-05-222001-10-01
20022002-06-122002-09-22
20032003-06-052003-09-27
20042004-06-172004-08-30
20052005-07-172005-08-25
20062006-05-152006-09-01
20072007-07-102007-09-10
20082008-05-162008-09-29
20092009-07-042009-09-27
20102010-07-072010-09-30
20112011-08-202011-09-29
20122012-08-042012-09-17
20132013-07-012013-09-11
20142014-05-142014-10-06
20152015-06-082015-09-11
20162016-06-042016-09-26
20172017-06-242017-09-04
20182018-07-122018-09-27
20192019-06-112019-08-27
20202020-07-262020-09-09
20212021-06-262021-09-24
20222022-06-262022-09-10
20232023-07-142023-09-15
20242024-07-052024-09-24
20252025-06-092025-09-04
20262026-06-142026-09-09

Every Fixed Threshold

Fixed thresholds at Signal Tree Oregon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days332119966
35 C (95 F): Days13420031
90 F (32.2 C): Days291120034
100 F (37.8 C): Days1120091
0 C (32 F): Ice days (max332119981
0 C (32 F): Frost days (min33118201126
-10 C (14 F): Days with min6519971
20 C (68 F): Tropical nights (min23720241
25 C (77 F): Days with min1120171

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1991.

Download the Data

  • Data for Signal Tree 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). Threshold counts are computed by this site.

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