Built 2026-10-19 (19 October 2026)

Tanana AP Threshold Days by Year (USW00026529)

15 fixed thresholds counted per year at Tanana AP (USW00026529): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tanana AP Thresholds

  • Tanana AP: days with a maximum temperature at or below 0 C (32 F) in 98 years, most in 1952 with 196.
  • Tanana AP: nights with a minimum temperature at or below 0 C (32 F) in 98 years, most in 1952 with 271.
  • Tanana AP: nights with a minimum temperature at or below -10 C (14 F) in 98 years, most in 1927 with 184.
  • Tanana AP: nights with a minimum temperature at or below -20 C (-4 F) in 97 years, most in 1956 with 135.
  • 15 fixed thresholds have at least one qualifying day at Tanana AP.
44 years with a qualifying day
Days at or above 30 C (86 F) per year at Tanana AP Days per year at Tanana AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 2013. 024681918: 31919: 21921: 11923: 51926: 11933: 11934: 11936: 31939: 41940: 11942: 11946: 11948: 11953: 61955: 21957: 21958: 11960: 21963: 11967: 21968: 41969: 21971: 41976: 11977: 21982: 11983: 11987: 21990: 31991: 51993: 31994: 41998: 11999: 32009: 32011: 12013: 72014: 12015: 12016: 32018: 12019: 42022: 12023: 1191819331942195719681982199320112018
Days per year at Tanana AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 2013.
Days at or above 30 C (86 F) per year at Tanana AP
YearDaysDecade average
191832.5
191922.5
192112.3
192352.3
192612.3
193312.3
193412.3
193632.3
193942.3
194011
194211
194611
194811
195362.8
195522.8
195722.8
195812.8
196022.2
196312.2
196722.2
196842.2
196922.2
197142.3
197612.3
197722.3
198211.3
198311.3
198721.3
199033.2
199153.2
199333.2
199443.2
199813.2
199933.2
200933
201112.6
201372.6
201412.6
201512.6
201632.6
201812.6
201942.6
202211
202311
First to last qualifying date each year at Tanana AP For each year, a bar from the first to the last day at Tanana AP meeting 30 C (86 F). 1918: 9 July 1918 to 16 July 19181919: 27 July 1919 to 28 July 19191921: 6 August 1921 to 6 August 19211923: 25 July 1923 to 29 July 19231926: 15 August 1926 to 15 August 19261933: 29 July 1933 to 29 July 19331934: 29 June 1934 to 29 June 19341936: 16 June 1936 to 13 August 19361939: 23 June 1939 to 20 July 19391940: 16 July 1940 to 16 July 19401942: 24 June 1942 to 24 June 19421946: 12 July 1946 to 12 July 19461948: 18 June 1948 to 18 June 19481953: 3 June 1953 to 30 July 19531955: 23 July 1955 to 25 July 19551957: 12 July 1957 to 13 July 19571958: 4 July 1958 to 4 July 19581960: 13 July 1960 to 14 July 19601963: 10 July 1963 to 10 July 19631967: 18 June 1967 to 13 July 19671968: 7 July 1968 to 24 July 19681969: 15 June 1969 to 20 June 19691971: 23 June 1971 to 26 June 19711976: 22 July 1976 to 22 July 19761977: 30 July 1977 to 31 July 19771982: 7 July 1982 to 7 July 19821983: 25 June 1983 to 25 June 19831987: 22 June 1987 to 23 June 19871990: 1 July 1990 to 3 July 19901991: 21 June 1991 to 1 July 19911993: 14 July 1993 to 16 July 19931994: 13 June 1994 to 1 August 19941998: 6 July 1998 to 6 July 19981999: 13 June 1999 to 3 July 19992009: 7 July 2009 to 13 July 20092011: 28 May 2011 to 28 May 20112013: 28 May 2013 to 26 June 20132014: 6 July 2014 to 6 July 20142015: 19 June 2015 to 19 June 20152016: 13 July 2016 to 15 July 20162018: 22 July 2018 to 22 July 20182019: 28 June 2019 to 9 July 20192022: 3 July 2022 to 3 July 20222023: 23 July 2023 to 23 July 202319181934194819631977199320132022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tanana AP meeting 30 C (86 F).
First to last qualifying date each year at Tanana AP
YearFirst dateLast date
19181918-07-091918-07-16
19191919-07-271919-07-28
19211921-08-061921-08-06
19231923-07-251923-07-29
19261926-08-151926-08-15
19331933-07-291933-07-29
19341934-06-291934-06-29
19361936-06-161936-08-13
19391939-06-231939-07-20
19401940-07-161940-07-16
19421942-06-241942-06-24
19461946-07-121946-07-12
19481948-06-181948-06-18
19531953-06-031953-07-30
19551955-07-231955-07-25
19571957-07-121957-07-13
19581958-07-041958-07-04
19601960-07-131960-07-14
19631963-07-101963-07-10
19671967-06-181967-07-13
19681968-07-071968-07-24
19691969-06-151969-06-20
19711971-06-231971-06-26
19761976-07-221976-07-22
19771977-07-301977-07-31
19821982-07-071982-07-07
19831983-06-251983-06-25
19871987-06-221987-06-23
19901990-07-011990-07-03
19911991-06-211991-07-01
19931993-07-141993-07-16
19941994-06-131994-08-01
19981998-07-061998-07-06
19991999-06-131999-07-03
20092009-07-072009-07-13
20112011-05-282011-05-28
20132013-05-282013-06-26
20142014-07-062014-07-06
20152015-06-192015-06-19
20162016-07-132016-07-15
20182018-07-222018-07-22
20192019-06-282019-07-09
20222022-07-032022-07-03
20232023-07-232023-07-23

Every Fixed Threshold

Fixed thresholds at Tanana AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days44720131
90 F (32.2 C): Days9319532
0 C (32 F): Ice days (max9819619521
0 C (32 F): Frost days (min98271195219
-10 C (14 F): Days with min9818419272
-20 C (-4 F): Days with min97135195691
-30 C (-22 F): Days with min9795195636
-40 C (-40 F): Days with min964619565
20 C (68 F): Tropical nights (min1119871
10 mm (0.39 in): Days with 10 mm or more rain861819636
25 mm (0.98 in): Days with 25 mm or more rain34319622
50 mm (1.97 in): Days with 50 mm or more rain1119321
10 cm (3.9 in): Days with 10 cm or more snowfall54920233
25 cm (9.8 in): Days with 25 cm or more snowfall5219551
50 cm (19.7 in): Days with 50 cm or more snowfall1119551

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1918.

Download the Data

  • Data for Tanana 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).