Built 2026-10-17 (17 October 2026)

San Julian Threshold Days by Year

4 fixed thresholds counted per year at San Julian (ARM00087909): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Julian Thresholds

  • 4 fixed thresholds have at least one qualifying day at San Julian.
25 years with a qualifying day
Nights at or below 0 C (32 F) per year at San Julian Days per year at San Julian with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. 02550751001996: 531997: 831998: 361999: 782000: 672001: 692002: 752003: 522004: 602005: 812006: 752010: 542011: 632012: 782014: 512015: 762016: 752017: 592018: 822019: 682020: 732021: 592022: 752023: 822024: 83199619992002200520112015201820212024
Days per year at San Julian with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line.
Nights at or below 0 C (32 F) per year at San Julian
YearDaysDecade average
19965362.5
19978362.5
19983662.5
19997862.5
20006768.4
20016968.4
20027568.4
20035268.4
20046068.4
20058168.4
20067568.4
20105467.3
20116367.3
20127867.3
20145167.3
20157667.3
20167567.3
20175967.3
20188267.3
20196867.3
20207374.4
20215974.4
20227574.4
20238274.4
20248374.4
First to last qualifying date each year at San Julian For each year, a bar from the first to the last day at San Julian meeting 0 C (32 F). 1996: 31 January 1996 to 10 October 19961997: 4 April 1997 to 2 November 19971998: 22 April 1998 to 13 October 19981999: 23 April 1999 to 3 October 19992000: 30 April 2000 to 14 October 20002001: 11 March 2001 to 25 October 20012002: 27 March 2002 to 10 September 20022003: 12 May 2003 to 26 October 20032004: 20 April 2004 to 18 October 20042005: 19 April 2005 to 6 December 20052006: 20 March 2006 to 20 September 20062010: 21 April 2010 to 16 September 20102011: 14 April 2011 to 22 September 20112012: 24 February 2012 to 9 November 20122014: 15 March 2014 to 31 October 20142015: 5 April 2015 to 19 November 20152016: 8 April 2016 to 18 October 20162017: 6 April 2017 to 9 September 20172018: 27 March 2018 to 17 October 20182019: 3 May 2019 to 11 October 20192020: 10 May 2020 to 3 October 20202021: 4 May 2021 to 22 October 20212022: 19 March 2022 to 21 October 20222023: 29 March 2023 to 14 November 20232024: 22 April 2024 to 6 December 20241996200020042011201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Julian meeting 0 C (32 F).
First to last qualifying date each year at San Julian
YearFirst dateLast date
19961996-01-311996-10-10
19971997-04-041997-11-02
19981998-04-221998-10-13
19991999-04-231999-10-03
20002000-04-302000-10-14
20012001-03-112001-10-25
20022002-03-272002-09-10
20032003-05-122003-10-26
20042004-04-202004-10-18
20052005-04-192005-12-06
20062006-03-202006-09-20
20102010-04-212010-09-16
20112011-04-142011-09-22
20122012-02-242012-11-09
20142014-03-152014-10-31
20152015-04-052015-11-19
20162016-04-082016-10-18
20172017-04-062017-09-09
20182018-03-272018-10-17
20192019-05-032019-10-11
20202020-05-102020-10-03
20212021-05-042021-10-22
20222022-03-192022-10-21
20232023-03-292023-11-14
20242024-04-222024-12-06

Every Fixed Threshold

Fixed thresholds at San Julian
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Frost days (min250n/a83
-10 C (14 F): Days with min40n/a1
20 C (68 F): Tropical nights (min10n/a1
10 mm (0.39 in): Days with 10 mm or more rain10n/a3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1996.

Download the Data

  • Data for San Julian 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).