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Built 2026-10-19 (19 October 2026)

New Haven Tweed AP Threshold Days by Year (USW00014758)

16 fixed thresholds counted per year at New Haven Tweed AP (USW00014758): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for New Haven Tweed AP Thresholds

  • New Haven Tweed AP: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1975 with 52.
  • New Haven Tweed AP: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1958 with 22.
  • New Haven Tweed AP: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 2022 with 43.
  • New Haven Tweed AP: days with a maximum temperature at or below 0 C (32 F) in 50 years, most in 1970 with 43.
  • 16 fixed thresholds have at least one qualifying day at New Haven Tweed AP.
50 years with a qualifying day
Days at or above 30 C (86 F) per year at New Haven Tweed AP Days per year at New Haven Tweed AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 43 in 2022. 02040601948: 111949: 201950: 31951: 41952: 191953: 201954: 81955: 251956: 121957: 131958: 41959: 191960: 71961: 151962: 51963: 141964: 111965: 101966: 121967: 31968: 131969: 101970: 171975: 141976: 192002: 262003: 82004: 12005: 222006: 122007: 112008: 162009: 132010: 412011: 232012: 372013: 242014: 192015: 182016: 272017: 152018: 332019: 312020: 342021: 282022: 432023: 322024: 352025: 362026: 91948195319581963196820022007201220172022
Days per year at New Haven Tweed AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 43 in 2022.
Days at or above 30 C (86 F) per year at New Haven Tweed AP
YearDaysDecade average
19481115.5
19492015.5
1950312.7
1951412.7
19521912.7
19532012.7
1954812.7
19552512.7
19561212.7
19571312.7
1958412.7
19591912.7
1960710
19611510
1962510
19631410
19641110
19651010
19661210
1967310
19681310
19691010
19701716.7
19751416.7
19761916.7
20022613.6
2003813.6
2004113.6
20052213.6
20061213.6
20071113.6
20081613.6
20091313.6
20104126.8
20112326.8
20123726.8
20132426.8
20141926.8
20151826.8
20162726.8
20171526.8
20183326.8
20193126.8
20203431
20212831
20224331
20233231
20243531
20253631
2026931
First to last qualifying date each year at New Haven Tweed AP For each year, a bar from the first to the last day at New Haven Tweed AP meeting 30 C (86 F). 1948: 25 June 1948 to 29 August 19481949: 21 June 1949 to 27 August 19491950: 25 June 1950 to 31 July 19501951: 16 July 1951 to 30 August 19511952: 25 June 1952 to 13 September 19521953: 21 June 1953 to 5 September 19531954: 25 June 1954 to 1 August 19541955: 2 July 1955 to 22 August 19551956: 13 May 1956 to 28 August 19561957: 15 June 1957 to 3 August 19571958: 1 July 1958 to 4 August 19581959: 10 June 1959 to 23 September 19591960: 30 June 1960 to 30 August 19601961: 30 June 1961 to 22 September 19611962: 16 June 1962 to 8 August 19621963: 25 June 1963 to 4 August 19631964: 10 June 1964 to 9 September 19641965: 10 June 1965 to 16 August 19651966: 24 June 1966 to 2 September 19661967: 11 June 1967 to 12 July 19671968: 6 June 1968 to 25 August 19681969: 29 May 1969 to 25 August 19691970: 1 July 1970 to 23 September 19701975: 24 June 1975 to 22 August 19751976: 18 April 1976 to 23 August 19762002: 18 April 2002 to 19 August 20022003: 25 June 2003 to 22 August 20032004: 15 June 2004 to 15 June 20042005: 13 June 2005 to 1 September 20052006: 4 July 2006 to 20 August 20062007: 26 June 2007 to 8 August 20072008: 8 June 2008 to 18 August 20082009: 28 July 2009 to 26 August 20092010: 26 May 2010 to 8 September 20102011: 30 May 2011 to 8 August 20112012: 20 June 2012 to 1 September 20122013: 30 May 2013 to 11 September 20132014: 18 June 2014 to 6 September 20142015: 13 June 2015 to 9 September 20152016: 26 May 2016 to 9 September 20162017: 11 June 2017 to 24 September 20172018: 2 June 2018 to 6 September 20182019: 27 June 2019 to 2 October 20192020: 22 June 2020 to 3 September 20202021: 19 May 2021 to 27 August 20212022: 22 May 2022 to 5 September 20222023: 14 April 2023 to 9 September 20232024: 19 June 2024 to 19 September 20242025: 5 June 2025 to 22 August 20252026: 20 May 2026 to 15 July 202619481955196219692005201220192026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at New Haven Tweed AP meeting 30 C (86 F).
First to last qualifying date each year at New Haven Tweed AP
YearFirst dateLast date
19481948-06-251948-08-29
19491949-06-211949-08-27
19501950-06-251950-07-31
19511951-07-161951-08-30
19521952-06-251952-09-13
19531953-06-211953-09-05
19541954-06-251954-08-01
19551955-07-021955-08-22
19561956-05-131956-08-28
19571957-06-151957-08-03
19581958-07-011958-08-04
19591959-06-101959-09-23
19601960-06-301960-08-30
19611961-06-301961-09-22
19621962-06-161962-08-08
19631963-06-251963-08-04
19641964-06-101964-09-09
19651965-06-101965-08-16
19661966-06-241966-09-02
19671967-06-111967-07-12
19681968-06-061968-08-25
19691969-05-291969-08-25
19701970-07-011970-09-23
19751975-06-241975-08-22
19761976-04-181976-08-23
20022002-04-182002-08-19
20032003-06-252003-08-22
20042004-06-152004-06-15
20052005-06-132005-09-01
20062006-07-042006-08-20
20072007-06-262007-08-08
20082008-06-082008-08-18
20092009-07-282009-08-26
20102010-05-262010-09-08
20112011-05-302011-08-08
20122012-06-202012-09-01
20132013-05-302013-09-11
20142014-06-182014-09-06
20152015-06-132015-09-09
20162016-05-262016-09-09
20172017-06-112017-09-24
20182018-06-022018-09-06
20192019-06-272019-10-02
20202020-06-222020-09-03
20212021-05-192021-08-27
20222022-05-222022-09-05
20232023-04-142023-09-09
20242024-06-192024-09-19
20252025-06-052025-08-22
20262026-05-202026-07-15

Every Fixed Threshold

Fixed thresholds at New Haven Tweed AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days504320229
35 C (95 F): Days17420101
90 F (32.2 C): Days431720223
100 F (37.8 C): Days4119481
0 C (32 F): Ice days (max5043197022
0 C (32 F): Frost days (min50126196074
-10 C (14 F): Days with min5039194814
-20 C (-4 F): Days with min6219611
20 C (68 F): Tropical nights (min5056202115
25 C (77 F): Days with min10520221
10 mm (0.39 in): Days with 10 mm or more rain5252197518
25 mm (0.98 in): Days with 25 mm or more rain522219587
50 mm (1.97 in): Days with 50 mm or more rain42619551
100 mm (3.94 in): Days with 100 mm or more rain8220061
10 cm (3.9 in): Days with 10 cm or more snowfall24619484
25 cm (9.8 in): Days with 25 cm or more snowfall8219581

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

  • Data for New Haven Tweed 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 (2026-10-17).