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Built 2026-10-19 (19 October 2026)

Carnegie Threshold Days by Year (ASN00013015)

15 fixed thresholds counted per year at Carnegie (ASN00013015): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Carnegie Thresholds

  • Carnegie: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 1995 with 17.
  • Carnegie: days with 25 mm (0.98 in) or more of precipitation in 57 years, most in 2011 with 8.
  • Carnegie: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1945 with 2.
  • Carnegie: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 1994 with 222.
  • 15 fixed thresholds have at least one qualifying day at Carnegie.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Carnegie Days per year at Carnegie with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 222 in 1994. 01002003001989: 1731990: 2091991: 1901992: 1481993: 1881994: 2221995: 1781996: 2001997: 1921998: 2061999: 1642000: 1622001: 1772002: 2092003: 1972004: 1892005: 2182006: 1922010: 1852011: 1762012: 1942014: 2132015: 1792016: 1782019: 2112020: 2032021: 1792025: 2122026: 1291989199219951998200120042010201420192025
Days per year at Carnegie with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 222 in 1994.
Days at or above 30 C (86 F) per year at Carnegie
YearDaysDecade average
1989173173
1990209189.7
1991190189.7
1992148189.7
1993188189.7
1994222189.7
1995178189.7
1996200189.7
1997192189.7
1998206189.7
1999164189.7
2000162192
2001177192
2002209192
2003197192
2004189192
2005218192
2006192192
2010185190.9
2011176190.9
2012194190.9
2014213190.9
2015179190.9
2016178190.9
2019211190.9
2020203180.8
2021179180.8
2025212180.8
2026129180.8
First to last qualifying date each year at Carnegie For each year, a bar from the first to the last day at Carnegie meeting 30 C (86 F). 1989: 1 January 1989 to 31 December 19891990: 1 January 1990 to 31 December 19901991: 1 January 1991 to 31 December 19911992: 1 January 1992 to 31 December 19921993: 1 January 1993 to 31 December 19931994: 1 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951996: 1 January 1996 to 31 December 19961997: 1 January 1997 to 31 December 19971998: 1 January 1998 to 28 December 19981999: 14 January 1999 to 31 December 19992000: 1 January 2000 to 31 December 20002001: 1 January 2001 to 30 December 20012002: 1 January 2002 to 31 December 20022003: 1 January 2003 to 31 December 20032004: 1 January 2004 to 30 December 20042005: 1 January 2005 to 31 December 20052006: 2 January 2006 to 31 December 20062010: 1 January 2010 to 31 December 20102011: 1 January 2011 to 29 December 20112012: 3 January 2012 to 31 December 20122014: 1 January 2014 to 30 December 20142015: 4 January 2015 to 31 December 20152016: 1 January 2016 to 31 December 20162019: 2 January 2019 to 31 December 20192020: 1 January 2020 to 31 December 20202021: 1 January 2021 to 31 December 20212025: 1 January 2025 to 31 December 20252026: 1 January 2026 to 8 October 202619891993199720012005201220192026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Carnegie meeting 30 C (86 F).
First to last qualifying date each year at Carnegie
YearFirst dateLast date
19891989-01-011989-12-31
19901990-01-011990-12-31
19911991-01-011991-12-31
19921992-01-011992-12-31
19931993-01-011993-12-31
19941994-01-011994-12-31
19951995-01-011995-12-31
19961996-01-011996-12-31
19971997-01-011997-12-31
19981998-01-011998-12-28
19991999-01-141999-12-31
20002000-01-012000-12-31
20012001-01-012001-12-30
20022002-01-012002-12-31
20032003-01-012003-12-31
20042004-01-012004-12-30
20052005-01-012005-12-31
20062006-01-022006-12-31
20102010-01-012010-12-31
20112011-01-012011-12-29
20122012-01-032012-12-31
20142014-01-012014-12-30
20152015-01-042015-12-31
20162016-01-012016-12-31
20192019-01-022019-12-31
20202020-01-012020-12-31
20212021-01-012021-12-31
20252025-01-012025-12-31
20262026-01-012026-10-08

Every Fixed Threshold

Fixed thresholds at Carnegie
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days292221994129
35 C (95 F): Days29160201972
40 C (104 F): Days2982201926
45 C (113 F): Days181820258
90 F (32.2 C): Days291902005105
100 F (37.8 C): Days29114201936
110 F (43.3 C): Days2735201911
0 C (32 F): Frost days (min19720061
20 C (68 F): Tropical nights (min28131201467
25 C (77 F): Days with min2847199114
10 mm (0.39 in): Days with 10 mm or more rain6817199511
25 mm (0.98 in): Days with 25 mm or more rain57820114
50 mm (1.97 in): Days with 50 mm or more rain30219451
100 mm (3.94 in): Days with 100 mm or more rain4119461
200 mm (7.87 in): Days with 200 mm or more rain1120201

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1989.

Download the Data

  • Data for Carnegie 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).