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Built 2026-10-19 (19 October 2026)

Chatham Muni AP Threshold Days by Year (USW00094624)

13 fixed thresholds counted per year at Chatham Muni AP (USW00094624): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chatham Muni AP Thresholds

  • Chatham Muni AP: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 2003 with 31.
  • Chatham Muni AP: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 2004 with 108.
  • Chatham Muni AP: nights with a minimum temperature at or above 20 C (68 F) in 29 years, most in 2023 with 60.
  • Chatham Muni AP: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 2019 with 53.
  • 13 fixed thresholds have at least one qualifying day at Chatham Muni AP.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Chatham Muni AP Days per year at Chatham Muni AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 2010. 051015201997: 61998: 11999: 82001: 32002: 92003: 22005: 52006: 42007: 32008: 72009: 12010: 182011: 72012: 122013: 112015: 62016: 122017: 52018: 122019: 82020: 152021: 52022: 182023: 172024: 92025: 5199720012005200820112015201820212024
Days per year at Chatham Muni AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 2010.
Days at or above 30 C (86 F) per year at Chatham Muni AP
YearDaysDecade average
199765
199815
199985
200134.3
200294.3
200324.3
200554.3
200644.3
200734.3
200874.3
200914.3
20101810.1
2011710.1
20121210.1
20131110.1
2015610.1
20161210.1
2017510.1
20181210.1
2019810.1
20201511.5
2021511.5
20221811.5
20231711.5
2024911.5
2025511.5
First to last qualifying date each year at Chatham Muni AP For each year, a bar from the first to the last day at Chatham Muni AP meeting 30 C (86 F). 1997: 11 June 1997 to 18 July 19971998: 22 July 1998 to 22 July 19981999: 8 June 1999 to 29 July 19992001: 3 May 2001 to 9 August 20012002: 3 July 2002 to 17 August 20022003: 26 June 2003 to 6 July 20032005: 11 July 2005 to 22 August 20052006: 29 July 2006 to 3 August 20062007: 25 May 2007 to 3 August 20072008: 8 June 2008 to 29 July 20082009: 11 August 2009 to 11 August 20092010: 26 May 2010 to 1 September 20102011: 8 June 2011 to 2 August 20112012: 20 June 2012 to 18 July 20122013: 25 June 2013 to 24 July 20132015: 20 July 2015 to 8 September 20152016: 6 July 2016 to 29 August 20162017: 12 June 2017 to 21 July 20172018: 30 June 2018 to 30 August 20182019: 10 July 2019 to 22 August 20192020: 21 July 2020 to 25 August 20202021: 29 June 2021 to 27 August 20212022: 13 July 2022 to 11 September 20222023: 3 July 2023 to 8 September 20232024: 25 May 2024 to 5 August 20242025: 24 June 2025 to 12 August 20251997200220072011201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chatham Muni AP meeting 30 C (86 F).
First to last qualifying date each year at Chatham Muni AP
YearFirst dateLast date
19971997-06-111997-07-18
19981998-07-221998-07-22
19991999-06-081999-07-29
20012001-05-032001-08-09
20022002-07-032002-08-17
20032003-06-262003-07-06
20052005-07-112005-08-22
20062006-07-292006-08-03
20072007-05-252007-08-03
20082008-06-082008-07-29
20092009-08-112009-08-11
20102010-05-262010-09-01
20112011-06-082011-08-02
20122012-06-202012-07-18
20132013-06-252013-07-24
20152015-07-202015-09-08
20162016-07-062016-08-29
20172017-06-122017-07-21
20182018-06-302018-08-30
20192019-07-102019-08-22
20202020-07-212020-08-25
20212021-06-292021-08-27
20222022-07-132022-09-11
20232023-07-032023-09-08
20242024-05-252024-08-05
20252025-06-242025-08-12

Every Fixed Threshold

Fixed thresholds at Chatham Muni AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days261820105
35 C (95 F): Days3119991
90 F (32.2 C): Days17620121
0 C (32 F): Ice days (max2931200320
0 C (32 F): Frost days (min29108200498
-10 C (14 F): Days with min241920152
-20 C (-4 F): Days with min1120041
20 C (68 F): Tropical nights (min2960202318
25 C (77 F): Days with min4420221
10 mm (0.39 in): Days with 10 mm or more rain2753201912
25 mm (0.98 in): Days with 25 mm or more rain271720105
50 mm (1.97 in): Days with 50 mm or more rain22620142
100 mm (3.94 in): Days with 100 mm or more rain2120171

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 Chatham 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).