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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Delta Junction 20 SE Threshold Days by Year (USC00502352)

12 fixed thresholds counted per year at Delta Junction 20 SE (USC00502352): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Delta Junction 20 SE Thresholds

  • Delta Junction 20 SE: days with a maximum temperature at or below 0 C (32 F) in 30 years, most in 2023 with 171.
  • Delta Junction 20 SE: nights with a minimum temperature at or below 0 C (32 F) in 30 years, most in 2000 with 262.
  • Delta Junction 20 SE: nights with a minimum temperature at or below -10 C (14 F) in 30 years, most in 2008 with 174.
  • Delta Junction 20 SE: nights with a minimum temperature at or below -20 C (-4 F) in 30 years, most in 1999 with 115.
  • 12 fixed thresholds have at least one qualifying day at Delta Junction 20 SE.
14 years with a qualifying day
Days at or above 30 C (86 F) per year at Delta Junction 20 SE Days per year at Delta Junction 20 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 2004. 02461997: 11998: 11999: 32004: 62009: 12010: 12013: 32015: 22016: 12017: 12018: 42019: 22023: 22024: 11997199920092013201620182023
Days per year at Delta Junction 20 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 2004.
Days at or above 30 C (86 F) per year at Delta Junction 20 SE
YearDaysDecade average
199711.7
199811.7
199931.7
200463.5
200913.5
201012
201332
201522
201612
201712
201842
201922
202321.5
202411.5
First to last qualifying date each year at Delta Junction 20 SE For each year, a bar from the first to the last day at Delta Junction 20 SE meeting 30 C (86 F). 1997: 30 June 1997 to 30 June 19971998: 5 July 1998 to 5 July 19981999: 13 June 1999 to 1 August 19992004: 20 June 2004 to 14 July 20042009: 9 July 2009 to 9 July 20092010: 16 August 2010 to 16 August 20102013: 17 June 2013 to 27 June 20132015: 24 May 2015 to 7 July 20152016: 15 July 2016 to 15 July 20162017: 10 June 2017 to 10 June 20172018: 23 July 2018 to 26 July 20182019: 30 June 2019 to 1 July 20192023: 24 July 2023 to 25 July 20232024: 6 August 2024 to 6 August 20241997199920092013201620182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Delta Junction 20 SE meeting 30 C (86 F).
First to last qualifying date each year at Delta Junction 20 SE
YearFirst dateLast date
19971997-06-301997-06-30
19981998-07-051998-07-05
19991999-06-131999-08-01
20042004-06-202004-07-14
20092009-07-092009-07-09
20102010-08-162010-08-16
20132013-06-172013-06-27
20152015-05-242015-07-07
20162016-07-152016-07-15
20172017-06-102017-06-10
20182018-07-232018-07-26
20192019-06-302019-07-01
20232023-07-242023-07-25
20242024-08-062024-08-06

Every Fixed Threshold

Fixed thresholds at Delta Junction 20 SE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days14620041
90 F (32.2 C): Days2320042
0 C (32 F): Ice days (max30171202391
0 C (32 F): Frost days (min302622000141
-10 C (14 F): Days with min30174200896
-20 C (-4 F): Days with min30115199968
-30 C (-22 F): Days with min3062199940
-40 C (-40 F): Days with min2620199918
10 mm (0.39 in): Days with 10 mm or more rain281120195
25 mm (0.98 in): Days with 25 mm or more rain12320201
10 cm (3.9 in): Days with 10 cm or more snowfall24820212
25 cm (9.8 in): Days with 25 cm or more snowfall1120191

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Delta Junction 20 SE 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).