Built 2026-10-19 (19 October 2026)

Northway AP Threshold Days by Year (USW00026412)

13 fixed thresholds counted per year at Northway AP (USW00026412): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Northway AP Thresholds

  • Northway AP: days with a maximum temperature at or below 0 C (32 F) in 82 years, most in 1972 with 184.
  • Northway AP: nights with a minimum temperature at or below 0 C (32 F) in 82 years, most in 1956 with 259.
  • Northway AP: nights with a minimum temperature at or below -10 C (14 F) in 82 years, most in 1972 with 198.
  • Northway AP: nights with a minimum temperature at or below -20 C (-4 F) in 81 years, most in 1959 with 147.
  • 13 fixed thresholds have at least one qualifying day at Northway AP.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Northway AP Days per year at Northway AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 2004. 02461947: 21949: 11950: 21951: 21955: 21958: 11969: 31972: 21976: 11977: 11980: 21989: 11990: 11992: 11993: 11994: 42004: 62005: 12013: 32017: 12019: 32021: 12023: 42024: 519471951196919771990199420132021
Days per year at Northway AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 2004.
Days at or above 30 C (86 F) per year at Northway AP
YearDaysDecade average
194721.5
194911.5
195021.8
195121.8
195521.8
195811.8
196933
197221.3
197611.3
197711.3
198021.5
198911.5
199011.8
199211.8
199311.8
199441.8
200463.5
200513.5
201332.3
201712.3
201932.3
202113.3
202343.3
202453.3
First to last qualifying date each year at Northway AP For each year, a bar from the first to the last day at Northway AP meeting 30 C (86 F). 1947: 28 May 1947 to 29 May 19471949: 9 July 1949 to 9 July 19491950: 17 June 1950 to 18 June 19501951: 8 July 1951 to 16 July 19511955: 25 July 1955 to 26 July 19551958: 20 June 1958 to 20 June 19581969: 13 June 1969 to 15 June 19691972: 13 June 1972 to 14 June 19721976: 1 August 1976 to 1 August 19761977: 4 August 1977 to 4 August 19771980: 5 June 1980 to 6 June 19801989: 8 July 1989 to 8 July 19891990: 12 August 1990 to 12 August 19901992: 29 June 1992 to 29 June 19921993: 15 July 1993 to 15 July 19931994: 4 August 1994 to 10 August 19942004: 19 June 2004 to 24 June 20042005: 11 August 2005 to 11 August 20052013: 25 June 2013 to 27 June 20132017: 9 June 2017 to 9 June 20172019: 29 June 2019 to 10 July 20192021: 2 August 2021 to 2 August 20212023: 6 July 2023 to 27 July 20232024: 21 July 2024 to 18 August 202419471951196919771990199420132021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Northway AP meeting 30 C (86 F).
First to last qualifying date each year at Northway AP
YearFirst dateLast date
19471947-05-281947-05-29
19491949-07-091949-07-09
19501950-06-171950-06-18
19511951-07-081951-07-16
19551955-07-251955-07-26
19581958-06-201958-06-20
19691969-06-131969-06-15
19721972-06-131972-06-14
19761976-08-011976-08-01
19771977-08-041977-08-04
19801980-06-051980-06-06
19891989-07-081989-07-08
19901990-08-121990-08-12
19921992-06-291992-06-29
19931993-07-151993-07-15
19941994-08-041994-08-10
20042004-06-192004-06-24
20052005-08-112005-08-11
20132013-06-252013-06-27
20172017-06-092017-06-09
20192019-06-292019-07-10
20212021-08-022021-08-02
20232023-07-062023-07-27
20242024-07-212024-08-18

Every Fixed Threshold

Fixed thresholds at Northway AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days24620045
90 F (32.2 C): Days3119691
0 C (32 F): Ice days (max8218419721
0 C (32 F): Frost days (min82259195628
-10 C (14 F): Days with min8219819723
-20 C (-4 F): Days with min81147195990
-30 C (-22 F): Days with min8189196630
-40 C (-40 F): Days with min794319724
10 mm (0.39 in): Days with 10 mm or more rain701320105
25 mm (0.98 in): Days with 25 mm or more rain30320052
50 mm (1.97 in): Days with 50 mm or more rain4119441
10 cm (3.9 in): Days with 10 cm or more snowfall41419861
25 cm (9.8 in): Days with 25 cm or more snowfall1119491

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.

Download the Data

  • Data for Northway 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 (2026-10-15).