Built 2026-10-17 (17 October 2026)

Riddle Mountain Oregon Threshold Days by Year

9 fixed thresholds counted per year at Riddle Mountain Oregon (USR0000ORID): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Riddle Mountain Oregon Thresholds

  • Riddle Mountain Oregon: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 2022 with 39.
  • Riddle Mountain Oregon: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 2023 with 57.
  • Riddle Mountain Oregon: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 2008 with 178.
  • Riddle Mountain Oregon: nights with a minimum temperature at or below -10 C (14 F) in 36 years, most in 2008 with 26.
  • 9 fixed thresholds have at least one qualifying day at Riddle Mountain Oregon.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Riddle Mountain Oregon Days per year at Riddle Mountain Oregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 39 in 2022. 0102030401991: 121992: 181993: 21994: 181995: 91996: 211997: 81998: 221999: 112000: 182001: 242002: 222003: 322004: 202005: 202006: 262007: 292008: 192009: 172010: 162011: 92012: 272013: 342014: 192015: 222016: 142017: 322018: 212019: 142020: 202021: 292022: 392023: 132024: 282025: 132026: 24199119951999200320072011201520192023
Days per year at Riddle Mountain Oregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 39 in 2022.
Days at or above 30 C (86 F) per year at Riddle Mountain Oregon
YearDaysDecade average
19911213.4
19921813.4
1993213.4
19941813.4
1995913.4
19962113.4
1997813.4
19982213.4
19991113.4
20001822.7
20012422.7
20022222.7
20033222.7
20042022.7
20052022.7
20062622.7
20072922.7
20081922.7
20091722.7
20101620.8
2011920.8
20122720.8
20133420.8
20141920.8
20152220.8
20161420.8
20173220.8
20182120.8
20191420.8
20202023.7
20212923.7
20223923.7
20231323.7
20242823.7
20251323.7
20262423.7
First to last qualifying date each year at Riddle Mountain Oregon For each year, a bar from the first to the last day at Riddle Mountain Oregon meeting 30 C (86 F). 1991: 3 July 1991 to 22 August 19911992: 22 June 1992 to 22 September 19921993: 3 August 1993 to 10 September 19931994: 8 July 1994 to 14 August 19941995: 27 July 1995 to 15 September 19951996: 7 June 1996 to 30 August 19961997: 14 July 1997 to 22 August 19971998: 9 July 1998 to 15 September 19981999: 14 June 1999 to 26 August 19992000: 4 June 2000 to 14 September 20002001: 21 June 2001 to 30 August 20012002: 25 June 2002 to 14 September 20022003: 28 May 2003 to 28 September 20032004: 23 June 2004 to 31 August 20042005: 5 July 2005 to 28 August 20052006: 24 June 2006 to 6 September 20062007: 4 July 2007 to 3 September 20072008: 29 June 2008 to 29 August 20082009: 16 July 2009 to 28 August 20092010: 28 June 2010 to 30 September 20102011: 6 July 2011 to 23 September 20112012: 6 July 2012 to 8 September 20122013: 27 June 2013 to 31 August 20132014: 1 July 2014 to 10 August 20142015: 9 June 2015 to 12 September 20152016: 28 June 2016 to 20 August 20162017: 19 June 2017 to 6 September 20172018: 9 July 2018 to 5 September 20182019: 12 July 2019 to 4 September 20192020: 23 June 2020 to 13 September 20202021: 21 June 2021 to 9 September 20212022: 27 June 2022 to 7 September 20222023: 15 July 2023 to 28 August 20232024: 22 June 2024 to 1 September 20242025: 31 May 2025 to 2 September 20252026: 16 June 2026 to 26 August 202619911996200120062011201620212026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Riddle Mountain Oregon meeting 30 C (86 F).
First to last qualifying date each year at Riddle Mountain Oregon
YearFirst dateLast date
19911991-07-031991-08-22
19921992-06-221992-09-22
19931993-08-031993-09-10
19941994-07-081994-08-14
19951995-07-271995-09-15
19961996-06-071996-08-30
19971997-07-141997-08-22
19981998-07-091998-09-15
19991999-06-141999-08-26
20002000-06-042000-09-14
20012001-06-212001-08-30
20022002-06-252002-09-14
20032003-05-282003-09-28
20042004-06-232004-08-31
20052005-07-052005-08-28
20062006-06-242006-09-06
20072007-07-042007-09-03
20082008-06-292008-08-29
20092009-07-162009-08-28
20102010-06-282010-09-30
20112011-07-062011-09-23
20122012-07-062012-09-08
20132013-06-272013-08-31
20142014-07-012014-08-10
20152015-06-092015-09-12
20162016-06-282016-08-20
20172017-06-192017-09-06
20182018-07-092018-09-05
20192019-07-122019-09-04
20202020-06-232020-09-13
20212021-06-212021-09-09
20222022-06-272022-09-07
20232023-07-152023-08-28
20242024-06-222024-09-01
20252025-05-312025-09-02
20262026-06-162026-08-26

Every Fixed Threshold

Fixed thresholds at Riddle Mountain Oregon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3639202224
35 C (95 F): Days7420024
90 F (32.2 C): Days331820078
0 C (32 F): Ice days (max365720238
0 C (32 F): Frost days (min36178200869
-10 C (14 F): Days with min362620084
-20 C (-4 F): Days with min2219982
20 C (68 F): Tropical nights (min311520174
25 C (77 F): Days with min2220021

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 Riddle 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-15).