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Built 2026-10-18 (18 October 2026)

New Boston Threshold Days by Year

6 fixed thresholds counted per year at New Boston (USC00416270): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for New Boston Thresholds

  • New Boston: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 2009 with 53.
  • New Boston: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1990 with 28.
  • New Boston: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 2009 with 11.
  • New Boston: days with 100 mm (3.94 in) or more of precipitation in 15 years, most in 2015 with 4.
  • 6 fixed thresholds have at least one qualifying day at New Boston.
34 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at New Boston Days per year at New Boston with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 2009. 02040601981: 391982: 431983: 271984: 311985: 381986: 331987: 351988: 361989: 361990: 451991: 491992: 351993: 341994: 301995: 311996: 361999: 222000: 252002: 302003: 332004: 302006: 292007: 362008: 392009: 532010: 322011: 202012: 262013: 392014: 312015: 452016: 312019: 412026: 6198119851989199319992004200920132019
Days per year at New Boston with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 2009.
Days with 10 mm (0.39 in) or more of precipitation per year at New Boston
YearDaysDecade average
19813935.3
19824335.3
19832735.3
19843135.3
19853835.3
19863335.3
19873535.3
19883635.3
19893635.3
19904535.3
19914935.3
19923535.3
19933435.3
19943035.3
19953135.3
19963635.3
19992235.3
20002534.4
20023034.4
20033334.4
20043034.4
20062934.4
20073634.4
20083934.4
20095334.4
20103233.1
20112033.1
20122633.1
20133933.1
20143133.1
20154533.1
20163133.1
20194133.1
202666
First to last qualifying date each year at New Boston For each year, a bar from the first to the last day at New Boston meeting 10 mm (0.39 in). 1981: 20 January 1981 to 30 November 19811982: 3 January 1982 to 27 December 19821983: 1 February 1983 to 17 December 19831984: 10 January 1984 to 18 December 19841985: 17 January 1985 to 11 December 19851986: 4 February 1986 to 23 December 19861987: 3 January 1987 to 20 December 19871988: 7 January 1988 to 31 December 19881989: 13 January 1989 to 31 December 19891990: 18 January 1990 to 27 December 19901991: 6 January 1991 to 13 December 19911992: 18 January 1992 to 21 December 19921993: 4 January 1993 to 13 December 19931994: 11 January 1994 to 29 December 19941995: 6 January 1995 to 18 December 19951996: 2 January 1996 to 16 December 19961999: 22 January 1999 to 5 December 19992000: 8 January 2000 to 27 December 20002002: 6 January 2002 to 24 December 20022003: 6 February 2003 to 29 December 20032004: 5 February 2004 to 23 December 20042006: 22 January 2006 to 30 December 20062007: 4 January 2007 to 28 December 20072008: 22 January 2008 to 28 December 20082009: 6 January 2009 to 25 December 20092010: 1 January 2010 to 29 December 20102011: 10 January 2011 to 19 December 20112012: 9 January 2012 to 30 December 20122013: 9 January 2013 to 21 December 20132014: 11 January 2014 to 18 December 20142015: 1 January 2015 to 28 December 20152016: 7 January 2016 to 27 December 20162019: 3 January 2019 to 30 December 20192026: 24 January 2026 to 24 June 20261981198619911996200420102015JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at New Boston meeting 10 mm (0.39 in).
First to last qualifying date each year at New Boston
YearFirst dateLast date
19811981-01-201981-11-30
19821982-01-031982-12-27
19831983-02-011983-12-17
19841984-01-101984-12-18
19851985-01-171985-12-11
19861986-02-041986-12-23
19871987-01-031987-12-20
19881988-01-071988-12-31
19891989-01-131989-12-31
19901990-01-181990-12-27
19911991-01-061991-12-13
19921992-01-181992-12-21
19931993-01-041993-12-13
19941994-01-111994-12-29
19951995-01-061995-12-18
19961996-01-021996-12-16
19991999-01-221999-12-05
20002000-01-082000-12-27
20022002-01-062002-12-24
20032003-02-062003-12-29
20042004-02-052004-12-23
20062006-01-222006-12-30
20072007-01-042007-12-28
20082008-01-222008-12-28
20092009-01-062009-12-25
20102010-01-012010-12-29
20112011-01-102011-12-19
20122012-01-092012-12-30
20132013-01-092013-12-21
20142014-01-112014-12-18
20152015-01-012015-12-28
20162016-01-072016-12-27
20192019-01-032019-12-30
20262026-01-242026-06-24

Every Fixed Threshold

Fixed thresholds at New Boston
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain345320096
25 mm (0.98 in): Days with 25 mm or more rain342819903
50 mm (1.97 in): Days with 50 mm or more rain331120091
100 mm (3.94 in): Days with 100 mm or more rain15420151
200 mm (7.87 in): Days with 200 mm or more rain1120091
10 cm (3.9 in): Days with 10 cm or more snowfall6220111

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1981.

Download the Data

  • Data for New Boston 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-12).