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Built 2026-10-19 (19 October 2026)

Plymouth Muni AP Threshold Days by Year (USW00054769)

14 fixed thresholds counted per year at Plymouth Muni AP (USW00054769): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Plymouth Muni AP Thresholds

  • Plymouth Muni AP: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2010 with 50.
  • Plymouth Muni AP: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 2010 with 22.
  • Plymouth Muni AP: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 2015 with 38.
  • Plymouth Muni AP: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 1997 with 152.
  • 14 fixed thresholds have at least one qualifying day at Plymouth Muni AP.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Plymouth Muni AP Days per year at Plymouth Muni AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 2010. 02040601997: 191998: 121999: 252000: 122001: 172002: 282003: 122004: 72005: 302006: 172007: 232008: 172009: 152010: 502011: 262012: 232013: 242014: 142015: 282016: 322017: 202018: 432019: 192020: 352021: 262022: 362023: 212024: 302025: 241997200020032006200920122015201820212024
Days per year at Plymouth Muni AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 2010.
Days at or above 30 C (86 F) per year at Plymouth Muni AP
YearDaysDecade average
19971918.7
19981218.7
19992518.7
20001217.8
20011717.8
20022817.8
20031217.8
2004717.8
20053017.8
20061717.8
20072317.8
20081717.8
20091517.8
20105027.9
20112627.9
20122327.9
20132427.9
20141427.9
20152827.9
20163227.9
20172027.9
20184327.9
20191927.9
20203528.7
20212628.7
20223628.7
20232128.7
20243028.7
20252428.7
First to last qualifying date each year at Plymouth Muni AP For each year, a bar from the first to the last day at Plymouth Muni AP meeting 30 C (86 F). 1997: 10 June 1997 to 10 August 19971998: 26 June 1998 to 25 August 19981999: 31 May 1999 to 3 September 19992000: 7 May 2000 to 1 September 20002001: 2 May 2001 to 10 August 20012002: 17 April 2002 to 10 September 20022003: 25 June 2003 to 22 August 20032004: 11 May 2004 to 30 August 20042005: 5 June 2005 to 12 September 20052006: 1 June 2006 to 10 August 20062007: 25 May 2007 to 26 September 20072008: 7 June 2008 to 4 September 20082009: 26 April 2009 to 26 August 20092010: 7 April 2010 to 25 September 20102011: 27 May 2011 to 9 October 20112012: 17 April 2012 to 31 August 20122013: 30 May 2013 to 11 September 20132014: 18 June 2014 to 6 September 20142015: 10 May 2015 to 17 September 20152016: 28 May 2016 to 14 September 20162017: 18 May 2017 to 20 August 20172018: 2 May 2018 to 6 September 20182019: 26 May 2019 to 22 August 20192020: 4 June 2020 to 4 September 20202021: 23 May 2021 to 27 August 20212022: 22 May 2022 to 30 August 20222023: 13 April 2023 to 9 September 20232024: 22 May 2024 to 28 August 20242025: 5 June 2025 to 17 August 202519972001200520092013201720212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Plymouth Muni AP meeting 30 C (86 F).
First to last qualifying date each year at Plymouth Muni AP
YearFirst dateLast date
19971997-06-101997-08-10
19981998-06-261998-08-25
19991999-05-311999-09-03
20002000-05-072000-09-01
20012001-05-022001-08-10
20022002-04-172002-09-10
20032003-06-252003-08-22
20042004-05-112004-08-30
20052005-06-052005-09-12
20062006-06-012006-08-10
20072007-05-252007-09-26
20082008-06-072008-09-04
20092009-04-262009-08-26
20102010-04-072010-09-25
20112011-05-272011-10-09
20122012-04-172012-08-31
20132013-05-302013-09-11
20142014-06-182014-09-06
20152015-05-102015-09-17
20162016-05-282016-09-14
20172017-05-182017-08-20
20182018-05-022018-09-06
20192019-05-262019-08-22
20202020-06-042020-09-04
20212021-05-232021-08-27
20222022-05-222022-08-30
20232023-04-132023-09-09
20242024-05-222024-08-28
20252025-06-052025-08-17

Every Fixed Threshold

Fixed thresholds at Plymouth Muni AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2950201024
35 C (95 F): Days19920223
90 F (32.2 C): Days2922201013
100 F (37.8 C): Days3120101
0 C (32 F): Ice days (max2938201528
0 C (32 F): Frost days (min291521997126
-10 C (14 F): Days with min2936201519
-20 C (-4 F): Days with min8420052
20 C (68 F): Tropical nights (min2937201817
25 C (77 F): Days with min2220181
10 mm (0.39 in): Days with 10 mm or more rain2747201837
25 mm (0.98 in): Days with 25 mm or more rain2721201910
50 mm (1.97 in): Days with 50 mm or more rain25820052
100 mm (3.94 in): Days with 100 mm or more rain3220252

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Plymouth Muni AP 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).