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Built 2026-10-19 (19 October 2026)

Bellingham Intl AP Threshold Days by Year (USW00024217)

12 fixed thresholds counted per year at Bellingham Intl AP (USW00024217): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bellingham Intl AP Thresholds

  • Bellingham Intl AP: nights with a minimum temperature at or below 0 C (32 F) in 75 years, most in 1949 with 99.
  • Bellingham Intl AP: days with 10 mm (0.39 in) or more of precipitation in 74 years, most in 1984 with 39.
  • Bellingham Intl AP: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 1971 with 9.
  • Bellingham Intl AP: days with a maximum temperature at or below 0 C (32 F) in 67 years, most in 1950 with 21.
  • 12 fixed thresholds have at least one qualifying day at Bellingham Intl AP.
54 years with a qualifying day
Days at or above 30 C (86 F) per year at Bellingham Intl AP Days per year at Bellingham Intl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 10 in 1958. 0358101949: 11951: 51952: 21953: 21955: 11956: 31958: 101959: 41960: 51961: 31963: 21965: 41967: 31968: 31969: 11970: 31971: 41973: 11974: 11977: 51978: 31979: 31981: 41982: 21983: 11985: 31987: 11988: 51989: 11990: 41991: 11993: 21994: 21995: 32003: 12004: 32006: 12007: 22009: 32010: 42012: 22013: 22014: 12015: 82016: 42017: 32018: 62020: 32021: 82022: 62023: 22024: 12025: 12026: 2194919581967197419831991200620142021
Days per year at Bellingham Intl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 10 in 1958.
Days at or above 30 C (86 F) per year at Bellingham Intl AP
YearDaysDecade average
194911
195153.9
195223.9
195323.9
195513.9
195633.9
1958103.9
195943.9
196053
196133
196323
196543
196733
196833
196913
197032.9
197142.9
197312.9
197412.9
197752.9
197832.9
197932.9
198142.4
198222.4
198312.4
198532.4
198712.4
198852.4
198912.4
199042.4
199112.4
199322.4
199422.4
199532.4
200312
200432
200612
200722
200932
201043.8
201223.8
201323.8
201413.8
201583.8
201643.8
201733.8
201863.8
202033.3
202183.3
202263.3
202323.3
202413.3
202513.3
202623.3
First to last qualifying date each year at Bellingham Intl AP For each year, a bar from the first to the last day at Bellingham Intl AP meeting 30 C (86 F). 1949: 14 July 1949 to 14 July 19491951: 29 June 1951 to 15 September 19511952: 3 August 1952 to 20 September 19521953: 5 May 1953 to 7 July 19531955: 9 June 1955 to 9 June 19551956: 18 July 1956 to 22 August 19561958: 18 May 1958 to 28 July 19581959: 13 May 1959 to 31 July 19591960: 6 July 1960 to 9 August 19601961: 11 July 1961 to 11 August 19611963: 21 May 1963 to 9 September 19631965: 29 July 1965 to 18 August 19651967: 19 June 1967 to 28 August 19671968: 2 July 1968 to 31 July 19681969: 23 May 1969 to 23 May 19691970: 1 June 1970 to 15 July 19701971: 26 July 1971 to 10 August 19711973: 5 September 1973 to 5 September 19731974: 20 September 1974 to 20 September 19741977: 9 August 1977 to 17 August 19771978: 21 July 1978 to 8 August 19781979: 16 July 1979 to 14 September 19791981: 8 August 1981 to 7 September 19811982: 18 June 1982 to 19 June 19821983: 28 May 1983 to 28 May 19831985: 18 July 1985 to 15 August 19851987: 31 August 1987 to 31 August 19871988: 19 July 1988 to 3 September 19881989: 3 June 1989 to 3 June 19891990: 20 July 1990 to 11 August 19901991: 23 July 1991 to 23 July 19911993: 3 August 1993 to 4 August 19931994: 20 July 1994 to 22 July 19941995: 29 June 1995 to 18 July 19952003: 28 September 2003 to 28 September 20032004: 23 July 2004 to 9 August 20042006: 21 July 2006 to 21 July 20062007: 10 July 2007 to 11 July 20072009: 27 July 2009 to 29 July 20092010: 8 July 2010 to 15 August 20102012: 15 August 2012 to 17 August 20122013: 30 June 2013 to 16 July 20132014: 13 July 2014 to 13 July 20142015: 27 June 2015 to 11 August 20152016: 2 May 2016 to 26 August 20162017: 24 June 2017 to 4 September 20172018: 4 July 2018 to 20 August 20182020: 27 July 2020 to 16 August 20202021: 25 June 2021 to 13 August 20212022: 26 July 2022 to 18 August 20222023: 15 May 2023 to 14 August 20232024: 9 July 2024 to 9 July 20242025: 11 August 2025 to 11 August 20252026: 21 July 2026 to 22 July 202619491959196919791989200420142022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bellingham Intl AP meeting 30 C (86 F).
First to last qualifying date each year at Bellingham Intl AP
YearFirst dateLast date
19491949-07-141949-07-14
19511951-06-291951-09-15
19521952-08-031952-09-20
19531953-05-051953-07-07
19551955-06-091955-06-09
19561956-07-181956-08-22
19581958-05-181958-07-28
19591959-05-131959-07-31
19601960-07-061960-08-09
19611961-07-111961-08-11
19631963-05-211963-09-09
19651965-07-291965-08-18
19671967-06-191967-08-28
19681968-07-021968-07-31
19691969-05-231969-05-23
19701970-06-011970-07-15
19711971-07-261971-08-10
19731973-09-051973-09-05
19741974-09-201974-09-20
19771977-08-091977-08-17
19781978-07-211978-08-08
19791979-07-161979-09-14
19811981-08-081981-09-07
19821982-06-181982-06-19
19831983-05-281983-05-28
19851985-07-181985-08-15
19871987-08-311987-08-31
19881988-07-191988-09-03
19891989-06-031989-06-03
19901990-07-201990-08-11
19911991-07-231991-07-23
19931993-08-031993-08-04
19941994-07-201994-07-22
19951995-06-291995-07-18
20032003-09-282003-09-28
20042004-07-232004-08-09
20062006-07-212006-07-21
20072007-07-102007-07-11
20092009-07-272009-07-29
20102010-07-082010-08-15
20122012-08-152012-08-17
20132013-06-302013-07-16
20142014-07-132014-07-13
20152015-06-272015-08-11
20162016-05-022016-08-26
20172017-06-242017-09-04
20182018-07-042018-08-20
20202020-07-272020-08-16
20212021-06-252021-08-13
20222022-07-262022-08-18
20232023-05-152023-08-14
20242024-07-092024-07-09
20252025-08-112025-08-11
20262026-07-212026-07-22

Every Fixed Threshold

Fixed thresholds at Bellingham Intl AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days541019582
35 C (95 F): Days2420214
90 F (32.2 C): Days21420212
100 F (37.8 C): Days1120211
0 C (32 F): Ice days (max672119505
0 C (32 F): Frost days (min7599194932
-10 C (14 F): Days with min412219504
10 mm (0.39 in): Days with 10 mm or more rain7439198423
25 mm (0.98 in): Days with 25 mm or more rain70919714
50 mm (1.97 in): Days with 50 mm or more rain18319821
10 cm (3.9 in): Days with 10 cm or more snowfall27519511
25 cm (9.8 in): Days with 25 cm or more snowfall1119681

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Bellingham Intl 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).