Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Princeton Threshold Days by Year (USC00116998)

17 fixed thresholds counted per year at Princeton (USC00116998): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Princeton Thresholds

  • Princeton: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 2012 with 75.
  • Princeton: days with a maximum temperature at or above 90 F (32.2 C) in 36 years, most in 2012 with 49.
  • Princeton: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 2014 with 71.
  • Princeton: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 2018 with 156.
  • 17 fixed thresholds have at least one qualifying day at Princeton.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Princeton Days per year at Princeton with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 2012. 0204060801988: 671989: 331990: 261991: 561992: 211993: 231994: 381995: 511996: 331997: 351998: 451999: 502000: 352001: 492002: 622003: 412004: 292005: 722006: 442007: 682008: 302009: 162010: 622011: 562012: 752013: 412014: 112015: 172016: 282017: 292018: 452019: 332020: 412021: 612022: 382023: 45198819921996200020042008201220162020
Days per year at Princeton with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 2012.
Days at or above 30 C (86 F) per year at Princeton
YearDaysDecade average
19886750
19893350
19902637.8
19915637.8
19922137.8
19932337.8
19943837.8
19955137.8
19963337.8
19973537.8
19984537.8
19995037.8
20003544.6
20014944.6
20026244.6
20034144.6
20042944.6
20057244.6
20064444.6
20076844.6
20083044.6
20091644.6
20106239.7
20115639.7
20127539.7
20134139.7
20141139.7
20151739.7
20162839.7
20172939.7
20184539.7
20193339.7
20204146.3
20216146.3
20223846.3
20234546.3
First to last qualifying date each year at Princeton For each year, a bar from the first to the last day at Princeton meeting 30 C (86 F). 1988: 21 May 1988 to 22 September 19881989: 24 May 1989 to 6 September 19891990: 24 April 1990 to 6 September 19901991: 13 May 1991 to 15 September 19911992: 1 May 1992 to 25 August 19921993: 9 May 1993 to 30 August 19931994: 22 May 1994 to 30 September 19941995: 6 June 1995 to 5 September 19951996: 17 May 1996 to 22 August 19961997: 15 June 1997 to 5 October 19971998: 14 May 1998 to 26 September 19981999: 28 May 1999 to 5 September 19992000: 6 May 2000 to 19 September 20002001: 30 April 2001 to 7 September 20012002: 15 April 2002 to 30 September 20022003: 14 April 2003 to 11 September 20032004: 16 April 2004 to 14 September 20042005: 7 May 2005 to 5 October 20052006: 24 May 2006 to 3 October 20062007: 29 April 2007 to 7 October 20072008: 2 June 2008 to 2 September 20082009: 20 May 2009 to 15 August 20092010: 23 May 2010 to 9 October 20102011: 10 May 2011 to 12 September 20112012: 3 May 2012 to 12 September 20122013: 30 April 2013 to 20 September 20132014: 9 May 2014 to 26 August 20142015: 10 June 2015 to 7 September 20152016: 31 May 2016 to 26 September 20162017: 4 June 2017 to 27 September 20172018: 25 May 2018 to 9 October 20182019: 17 May 2019 to 2 October 20192020: 25 May 2020 to 3 September 20202021: 25 May 2021 to 2 October 20212022: 11 May 2022 to 21 September 20222023: 8 May 2023 to 1 October 202319881993199820032008201320182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Princeton meeting 30 C (86 F).
First to last qualifying date each year at Princeton
YearFirst dateLast date
19881988-05-211988-09-22
19891989-05-241989-09-06
19901990-04-241990-09-06
19911991-05-131991-09-15
19921992-05-011992-08-25
19931993-05-091993-08-30
19941994-05-221994-09-30
19951995-06-061995-09-05
19961996-05-171996-08-22
19971997-06-151997-10-05
19981998-05-141998-09-26
19991999-05-281999-09-05
20002000-05-062000-09-19
20012001-04-302001-09-07
20022002-04-152002-09-30
20032003-04-142003-09-11
20042004-04-162004-09-14
20052005-05-072005-10-05
20062006-05-242006-10-03
20072007-04-292007-10-07
20082008-06-022008-09-02
20092009-05-202009-08-15
20102010-05-232010-10-09
20112011-05-102011-09-12
20122012-05-032012-09-12
20132013-04-302013-09-20
20142014-05-092014-08-26
20152015-06-102015-09-07
20162016-05-312016-09-26
20172017-06-042017-09-27
20182018-05-252018-10-09
20192019-05-172019-10-02
20202020-05-252020-09-03
20212021-05-252021-10-02
20222022-05-112022-09-21
20232023-05-082023-10-01

Every Fixed Threshold

Fixed thresholds at Princeton
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3675201245
35 C (95 F): Days242819883
90 F (32.2 C): Days3649201214
100 F (37.8 C): Days71219887
0 C (32 F): Ice days (max3671201417
0 C (32 F): Frost days (min361562018103
-10 C (14 F): Days with min3669201412
-20 C (-4 F): Days with min342020146
-30 C (-22 F): Days with min2320193
20 C (68 F): Tropical nights (min3647199515
25 C (77 F): Days with min171019881
10 mm (0.39 in): Days with 10 mm or more rain3648200927
25 mm (0.98 in): Days with 25 mm or more rain361920095
50 mm (1.97 in): Days with 50 mm or more rain31319902
100 mm (3.94 in): Days with 100 mm or more rain7119891
10 cm (3.9 in): Days with 10 cm or more snowfall33520003
25 cm (9.8 in): Days with 25 cm or more snowfall3119911

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

  • Data for Princeton 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 (2025-12-31).