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Built 2026-10-19 (19 October 2026)

Grafton Research STN Threshold Days by Year (ASN00058077)

15 fixed thresholds counted per year at Grafton Research STN (ASN00058077): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grafton Research STN Thresholds

  • Grafton Research STN: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 2025 with 42.
  • Grafton Research STN: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 2022 with 20.
  • Grafton Research STN: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 2020 with 9.
  • Grafton Research STN: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 2019 with 129.
  • 15 fixed thresholds have at least one qualifying day at Grafton Research STN.
23 years with a qualifying day
Days at or above 30 C (86 F) per year at Grafton Research STN Days per year at Grafton Research STN with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 129 in 2019. 0501001502004: 922005: 902006: 652007: 632008: 422009: 802010: 442011: 542012: 602013: 672014: 782015: 652016: 1112017: 792018: 882019: 1292020: 782021: 462022: 332023: 1112024: 932025: 872026: 6620042007201020132016201920222025
Days per year at Grafton Research STN with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 129 in 2019.
Days at or above 30 C (86 F) per year at Grafton Research STN
YearDaysDecade average
20049272
20059072
20066572
20076372
20084272
20098072
20104477.5
20115477.5
20126077.5
20136777.5
20147877.5
20156577.5
201611177.5
20177977.5
20188877.5
201912977.5
20207873.4
20214673.4
20223373.4
202311173.4
20249373.4
20258773.4
20266673.4
First to last qualifying date each year at Grafton Research STN For each year, a bar from the first to the last day at Grafton Research STN meeting 30 C (86 F). 2004: 1 January 2004 to 27 December 20042005: 1 January 2005 to 31 December 20052006: 1 January 2006 to 25 December 20062007: 7 January 2007 to 22 December 20072008: 6 January 2008 to 31 December 20082009: 1 January 2009 to 27 December 20092010: 2 January 2010 to 17 December 20102011: 2 January 2011 to 20 December 20112012: 4 January 2012 to 25 December 20122013: 1 January 2013 to 26 December 20132014: 14 January 2014 to 31 December 20142015: 1 January 2015 to 26 December 20152016: 6 January 2016 to 31 December 20162017: 1 January 2017 to 29 December 20172018: 1 January 2018 to 31 December 20182019: 1 January 2019 to 24 December 20192020: 7 January 2020 to 29 December 20202021: 5 January 2021 to 22 December 20212022: 10 January 2022 to 29 December 20222023: 3 January 2023 to 30 December 20232024: 4 January 2024 to 31 December 20242025: 1 January 2025 to 31 December 20252026: 1 January 2026 to 6 October 202620042007201020132016201920222025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Grafton Research STN meeting 30 C (86 F).
First to last qualifying date each year at Grafton Research STN
YearFirst dateLast date
20042004-01-012004-12-27
20052005-01-012005-12-31
20062006-01-012006-12-25
20072007-01-072007-12-22
20082008-01-062008-12-31
20092009-01-012009-12-27
20102010-01-022010-12-17
20112011-01-022011-12-20
20122012-01-042012-12-25
20132013-01-012013-12-26
20142014-01-142014-12-31
20152015-01-012015-12-26
20162016-01-062016-12-31
20172017-01-012017-12-29
20182018-01-012018-12-31
20192019-01-012019-12-24
20202020-01-072020-12-29
20212021-01-052021-12-22
20222022-01-102022-12-29
20232023-01-032023-12-30
20242024-01-042024-12-31
20252025-01-012025-12-31
20262026-01-012026-10-06

Every Fixed Threshold

Fixed thresholds at Grafton Research STN
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days23129201966
35 C (95 F): Days2339201912
40 C (104 F): Days12520171
45 C (113 F): Days1120171
90 F (32.2 C): Days2384201936
100 F (37.8 C): Days171820191
110 F (43.3 C): Days2120041
0 C (32 F): Frost days (min5220042
20 C (68 F): Tropical nights (min2370202427
25 C (77 F): Days with min3220171
10 mm (0.39 in): Days with 10 mm or more rain3342202518
25 mm (0.98 in): Days with 25 mm or more rain332020221
50 mm (1.97 in): Days with 50 mm or more rain29920202
100 mm (3.94 in): Days with 100 mm or more rain13219211
200 mm (7.87 in): Days with 200 mm or more rain1120221

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2004.

Download the Data

  • Data for Grafton Research STN 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).