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Built 2026-10-15 (15 October 2026)

Fall Mountain Oregon Threshold Days by Year

10 fixed thresholds counted per year at Fall Mountain Oregon (USR0000OFAL): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fall Mountain Oregon Thresholds

  • Fall Mountain Oregon: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 2021 with 34.
  • Fall Mountain Oregon: days with a maximum temperature at or below 0 C (32 F) in 34 years, most in 1990 with 71.
  • Fall Mountain Oregon: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 2011 with 204.
  • Fall Mountain Oregon: nights with a minimum temperature at or below -10 C (14 F) in 34 years, most in 1993 with 32.
  • 10 fixed thresholds have at least one qualifying day at Fall Mountain Oregon.
34 years with a qualifying day
Days at or above 30 C (86 F) per year at Fall Mountain Oregon Days per year at Fall Mountain Oregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 2021. 0102030401987: 41990: 101991: 21992: 81993: 11994: 111995: 51996: 121997: 31998: 161999: 72001: 112002: 122003: 232005: 142007: 222009: 162010: 82011: 102012: 132013: 142014: 92015: 182016: 52017: 312018: 132019: 72020: 132021: 342022: 322023: 152024: 262025: 152026: 19198719931997200220092013201720212025
Days per year at Fall Mountain Oregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 2021.
Days at or above 30 C (86 F) per year at Fall Mountain Oregon
YearDaysDecade average
198744
1990107.5
199127.5
199287.5
199317.5
1994117.5
199557.5
1996127.5
199737.5
1998167.5
199977.5
20011116.3
20021216.3
20032316.3
20051416.3
20072216.3
20091616.3
2010812.8
20111012.8
20121312.8
20131412.8
2014912.8
20151812.8
2016512.8
20173112.8
20181312.8
2019712.8
20201322
20213422
20223222
20231522
20242622
20251522
20261922
First to last qualifying date each year at Fall Mountain Oregon For each year, a bar from the first to the last day at Fall Mountain Oregon meeting 30 C (86 F). 1987: 26 June 1987 to 31 August 19871990: 10 July 1990 to 10 September 19901991: 12 July 1991 to 31 July 19911992: 23 June 1992 to 18 August 19921993: 3 August 1993 to 3 August 19931994: 21 July 1994 to 14 August 19941995: 25 July 1995 to 15 September 19951996: 7 June 1996 to 10 September 19961997: 3 August 1997 to 22 August 19971998: 16 July 1998 to 15 September 19981999: 14 June 1999 to 27 August 19992001: 3 July 2001 to 26 August 20012002: 26 June 2002 to 14 September 20022003: 17 June 2003 to 3 September 20032005: 18 July 2005 to 28 August 20052007: 3 June 2007 to 3 September 20072009: 16 July 2009 to 23 September 20092010: 15 July 2010 to 2 October 20102011: 24 July 2011 to 24 September 20112012: 6 July 2012 to 8 September 20122013: 30 June 2013 to 15 August 20132014: 8 July 2014 to 11 August 20142015: 8 June 2015 to 12 September 20152016: 27 July 2016 to 18 August 20162017: 19 June 2017 to 6 September 20172018: 13 July 2018 to 10 August 20182019: 21 July 2019 to 28 August 20192020: 21 July 2020 to 13 September 20202021: 2 June 2021 to 7 September 20212022: 27 June 2022 to 6 September 20222023: 9 July 2023 to 28 August 20232024: 25 June 2024 to 6 September 20242025: 9 June 2025 to 4 September 20252026: 7 July 2026 to 26 August 20261987199419992007201320182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Fall Mountain Oregon meeting 30 C (86 F).
First to last qualifying date each year at Fall Mountain Oregon
YearFirst dateLast date
19871987-06-261987-08-31
19901990-07-101990-09-10
19911991-07-121991-07-31
19921992-06-231992-08-18
19931993-08-031993-08-03
19941994-07-211994-08-14
19951995-07-251995-09-15
19961996-06-071996-09-10
19971997-08-031997-08-22
19981998-07-161998-09-15
19991999-06-141999-08-27
20012001-07-032001-08-26
20022002-06-262002-09-14
20032003-06-172003-09-03
20052005-07-182005-08-28
20072007-06-032007-09-03
20092009-07-162009-09-23
20102010-07-152010-10-02
20112011-07-242011-09-24
20122012-07-062012-09-08
20132013-06-302013-08-15
20142014-07-082014-08-11
20152015-06-082015-09-12
20162016-07-272016-08-18
20172017-06-192017-09-06
20182018-07-132018-08-10
20192019-07-212019-08-28
20202020-07-212020-09-13
20212021-06-022021-09-07
20222022-06-272022-09-06
20232023-07-092023-08-28
20242024-06-252024-09-06
20252025-06-092025-09-04
20262026-07-072026-08-26

Every Fixed Threshold

Fixed thresholds at Fall Mountain Oregon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3434202119
35 C (95 F): Days10420021
90 F (32.2 C): Days271220036
100 F (37.8 C): Days1120071
0 C (32 F): Ice days (max3471199010
0 C (32 F): Frost days (min34204201190
-10 C (14 F): Days with min343219935
-20 C (-4 F): Days with min6819902
-30 C (-22 F): Days with min1219902
20 C (68 F): Tropical nights (min21520171

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1987.

Download the Data

  • Data for Fall Mountain 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).