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Data as of 2026-10-14
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Built 2026-10-16 (16 October 2026)

Chatanika Alaska Threshold Days by Year

8 fixed thresholds counted per year at Chatanika Alaska (USR0000ACHA): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chatanika Alaska Thresholds

  • Chatanika Alaska: days with a maximum temperature at or below 0 C (32 F) in 20 years, most in 2023 with 179.
  • Chatanika Alaska: nights with a minimum temperature at or below 0 C (32 F) in 20 years, most in 2000 with 228.
  • Chatanika Alaska: nights with a minimum temperature at or below -10 C (14 F) in 20 years, most in 1999 with 153.
  • Chatanika Alaska: nights with a minimum temperature at or below -20 C (-4 F) in 20 years, most in 1999 with 86.
  • 8 fixed thresholds have at least one qualifying day at Chatanika Alaska.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Chatanika Alaska Days per year at Chatanika Alaska with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 2010. 011221999: 12010: 22015: 12016: 22018: 12023: 1199920102015201620182023
Days per year at Chatanika Alaska with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 2010.
Days at or above 30 C (86 F) per year at Chatanika Alaska
YearDaysDecade average
199911
201021.5
201511.5
201621.5
201811.5
202311
First to last qualifying date each year at Chatanika Alaska For each year, a bar from the first to the last day at Chatanika Alaska meeting 30 C (86 F). 1999: 13 June 1999 to 13 June 19992010: 4 August 2010 to 15 August 20102015: 6 July 2015 to 6 July 20152016: 13 July 2016 to 14 July 20162018: 22 July 2018 to 22 July 20182023: 23 July 2023 to 23 July 2023199920102015201620182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chatanika Alaska meeting 30 C (86 F).
First to last qualifying date each year at Chatanika Alaska
YearFirst dateLast date
19991999-06-131999-06-13
20102010-08-042010-08-15
20152015-07-062015-07-06
20162016-07-132016-07-14
20182018-07-222018-07-22
20232023-07-232023-07-23

Every Fixed Threshold

Fixed thresholds at Chatanika Alaska
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days6220101
0 C (32 F): Ice days (max20179202364
0 C (32 F): Frost days (min20228200090
-10 C (14 F): Days with min20153199952
-20 C (-4 F): Days with min2086199935
-30 C (-22 F): Days with min182419995
-40 C (-40 F): Days with min1419994
20 C (68 F): Tropical nights (min4220242

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1999.

Download the Data

  • Data for Chatanika Alaska 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).