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Built 2026-10-19 (19 October 2026)

Houlton 5N Threshold Days by Year (USC00173944)

16 fixed thresholds counted per year at Houlton 5N (USC00173944): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Houlton 5N Thresholds

  • Houlton 5N: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 1995 with 24.
  • Houlton 5N: days with a maximum temperature at or below 0 C (32 F) in 28 years, most in 1989 with 95.
  • Houlton 5N: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 1992 with 201.
  • Houlton 5N: nights with a minimum temperature at or below -10 C (14 F) in 28 years, most in 1989 with 103.
  • 16 fixed thresholds have at least one qualifying day at Houlton 5N.
28 years with a qualifying day
Days at or above 30 C (86 F) per year at Houlton 5N Days per year at Houlton 5N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 1995. 01020301986: 21987: 51988: 141989: 61990: 101991: 111992: 41993: 91994: 41995: 241996: 51997: 81998: 81999: 202000: 12001: 222002: 152003: 72004: 32005: 142006: 52007: 92009: 82010: 192011: 42012: 112013: 112014: 121986198919921995199820012004200720112014
Days per year at Houlton 5N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 1995.
Days at or above 30 C (86 F) per year at Houlton 5N
YearDaysDecade average
198626.8
198756.8
1988146.8
198966.8
19901010.3
19911110.3
1992410.3
1993910.3
1994410.3
19952410.3
1996510.3
1997810.3
1998810.3
19992010.3
200019.3
2001229.3
2002159.3
200379.3
200439.3
2005149.3
200659.3
200799.3
200989.3
20101911.4
2011411.4
20121111.4
20131111.4
20141211.4
First to last qualifying date each year at Houlton 5N For each year, a bar from the first to the last day at Houlton 5N meeting 30 C (86 F). 1986: 25 July 1986 to 26 July 19861987: 9 July 1987 to 18 August 19871988: 14 June 1988 to 12 August 19881989: 22 June 1989 to 27 July 19891990: 27 April 1990 to 27 August 19901991: 20 June 1991 to 30 August 19911992: 21 May 1992 to 24 May 19921993: 14 June 1993 to 27 August 19931994: 16 June 1994 to 21 July 19941995: 1 June 1995 to 21 August 19951996: 11 June 1996 to 7 August 19961997: 29 June 1997 to 11 August 19971998: 14 July 1998 to 10 August 19981999: 30 May 1999 to 4 September 19992000: 16 June 2000 to 16 June 20002001: 3 May 2001 to 9 September 20012002: 21 June 2002 to 10 September 20022003: 20 May 2003 to 22 August 20032004: 15 May 2004 to 28 August 20042005: 2 June 2005 to 26 August 20052006: 8 July 2006 to 29 July 20062007: 10 May 2007 to 8 September 20072009: 21 May 2009 to 18 August 20092010: 24 May 2010 to 3 September 20102011: 16 July 2011 to 23 July 20112012: 20 June 2012 to 27 August 20122013: 31 May 2013 to 21 August 20132014: 9 June 2014 to 26 August 20141986199019941998200220062011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Houlton 5N meeting 30 C (86 F).
First to last qualifying date each year at Houlton 5N
YearFirst dateLast date
19861986-07-251986-07-26
19871987-07-091987-08-18
19881988-06-141988-08-12
19891989-06-221989-07-27
19901990-04-271990-08-27
19911991-06-201991-08-30
19921992-05-211992-05-24
19931993-06-141993-08-27
19941994-06-161994-07-21
19951995-06-011995-08-21
19961996-06-111996-08-07
19971997-06-291997-08-11
19981998-07-141998-08-10
19991999-05-301999-09-04
20002000-06-162000-06-16
20012001-05-032001-09-09
20022002-06-212002-09-10
20032003-05-202003-08-22
20042004-05-152004-08-28
20052005-06-022005-08-26
20062006-07-082006-07-29
20072007-05-102007-09-08
20092009-05-212009-08-18
20102010-05-242010-09-03
20112011-07-162011-07-23
20122012-06-202012-08-27
20132013-05-312013-08-21
20142014-06-092014-08-26

Every Fixed Threshold

Fixed thresholds at Houlton 5N
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2824199512
35 C (95 F): Days3119911
90 F (32.2 C): Days21619953
0 C (32 F): Ice days (max2895198972
0 C (32 F): Frost days (min282011992171
-10 C (14 F): Days with min28103198986
-20 C (-4 F): Days with min2853198936
-30 C (-22 F): Days with min221119943
-40 C (-40 F): Days with min1119941
20 C (68 F): Tropical nights (min20820102
25 C (77 F): Days with min1120051
10 mm (0.39 in): Days with 10 mm or more rain2847200339
25 mm (0.98 in): Days with 25 mm or more rain2817201417
50 mm (1.97 in): Days with 50 mm or more rain20420122
10 cm (3.9 in): Days with 10 cm or more snowfall2712199412
25 cm (9.8 in): Days with 25 cm or more snowfall23320143

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1986.

Download the Data

  • Data for Houlton 5N 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).