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Built 2026-10-15 (15 October 2026)

Assay - Hatch 10SW Threshold Days by Year

7 fixed thresholds counted per year at Assay - Hatch 10SW (USR0000ASSA): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Assay - Hatch 10SW Thresholds

  • Assay - Hatch 10SW: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 1987 with 54.
  • Assay - Hatch 10SW: nights with a minimum temperature at or below 0 C (32 F) in 38 years, most in 2019 with 215.
  • Assay - Hatch 10SW: nights with a minimum temperature at or below -10 C (14 F) in 38 years, most in 2023 with 58.
  • Assay - Hatch 10SW: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 2002 with 29.
  • 7 fixed thresholds have at least one qualifying day at Assay - Hatch 10SW.
32 years with a qualifying day
Days at or above 30 C (86 F) per year at Assay - Hatch 10SW Days per year at Assay - Hatch 10SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2002. 01020301985: 31989: 51994: 51996: 51997: 12000: 102001: 52002: 292003: 202004: 32005: 132006: 122007: 182008: 82009: 72010: 112011: 52012: 72013: 102014: 52015: 82016: 102017: 132018: 132019: 22020: 212021: 172022: 142023: 122024: 142025: 162026: 1619851997200320072011201520192023
Days per year at Assay - Hatch 10SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2002.
Days at or above 30 C (86 F) per year at Assay - Hatch 10SW
YearDaysDecade average
198534
198954
199453.7
199653.7
199713.7
20001012.5
2001512.5
20022912.5
20032012.5
2004312.5
20051312.5
20061212.5
20071812.5
2008812.5
2009712.5
2010118.4
201158.4
201278.4
2013108.4
201458.4
201588.4
2016108.4
2017138.4
2018138.4
201928.4
20202115.7
20211715.7
20221415.7
20231215.7
20241415.7
20251615.7
20261615.7
First to last qualifying date each year at Assay - Hatch 10SW For each year, a bar from the first to the last day at Assay - Hatch 10SW meeting 30 C (86 F). 1985: 4 July 1985 to 6 July 19851989: 5 July 1989 to 19 July 19891994: 25 June 1994 to 30 June 19941996: 3 July 1996 to 12 August 19961997: 15 July 1997 to 15 July 19972000: 21 July 2000 to 12 August 20002001: 30 June 2001 to 17 August 20012002: 30 May 2002 to 18 August 20022003: 4 July 2003 to 11 August 20032004: 12 July 2004 to 11 August 20042005: 11 July 2005 to 28 July 20052006: 6 June 2006 to 28 July 20062007: 22 June 2007 to 25 August 20072008: 9 July 2008 to 29 August 20082009: 16 July 2009 to 28 August 20092010: 6 June 2010 to 28 September 20102011: 2 July 2011 to 24 August 20112012: 21 June 2012 to 12 July 20122013: 9 June 2013 to 10 July 20132014: 30 June 2014 to 23 July 20142015: 20 June 2015 to 16 August 20152016: 20 June 2016 to 28 July 20162017: 19 June 2017 to 27 August 20172018: 26 June 2018 to 10 August 20182019: 15 August 2019 to 27 August 20192020: 24 June 2020 to 6 September 20202021: 14 June 2021 to 15 August 20212022: 9 July 2022 to 7 September 20222023: 14 July 2023 to 30 July 20232024: 23 June 2024 to 4 August 20242025: 30 June 2025 to 21 August 20252026: 9 July 2026 to 20 August 202619851997200320072011201520192023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Assay - Hatch 10SW meeting 30 C (86 F).
First to last qualifying date each year at Assay - Hatch 10SW
YearFirst dateLast date
19851985-07-041985-07-06
19891989-07-051989-07-19
19941994-06-251994-06-30
19961996-07-031996-08-12
19971997-07-151997-07-15
20002000-07-212000-08-12
20012001-06-302001-08-17
20022002-05-302002-08-18
20032003-07-042003-08-11
20042004-07-122004-08-11
20052005-07-112005-07-28
20062006-06-062006-07-28
20072007-06-222007-08-25
20082008-07-092008-08-29
20092009-07-162009-08-28
20102010-06-062010-09-28
20112011-07-022011-08-24
20122012-06-212012-07-12
20132013-06-092013-07-10
20142014-06-302014-07-23
20152015-06-202015-08-16
20162016-06-202016-07-28
20172017-06-192017-08-27
20182018-06-262018-08-10
20192019-08-152019-08-27
20202020-06-242020-09-06
20212021-06-142021-08-15
20222022-07-092022-09-07
20232023-07-142023-07-30
20242024-06-232024-08-04
20252025-06-302025-08-21
20262026-07-092026-08-20

Every Fixed Threshold

Fixed thresholds at Assay - Hatch 10SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3229200216
35 C (95 F): Days2120021
90 F (32.2 C): Days17820214
0 C (32 F): Ice days (max385419877
0 C (32 F): Frost days (min382152019100
-10 C (14 F): Days with min385820239
-20 C (-4 F): Days with min17820131

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1985.

Download the Data

  • Data for Assay - Hatch 10SW 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).