Yukon-Koyukuk Census Area climate

Yukon-Koyukuk Census Area Weather in August

NOAA 1991-2020 normals for Tanana Calhoun Mem AP, 64.9 km from Yukon-Koyukuk Census Area

Average highs run from 68°F on August 1 to 59°F on August 31, and lows from 47°F to 39°F. Normal precipitation for the month is 2.68 in over about 15 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Yukon-Koyukuk Census Area, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
64°F
Average low
43°F
Precipitation
2.68 in
Record high
90°FAug 11, 1907
Record low
20°FAug 15, 1985
Chance of a freeze
62%
Daylight
18 h 28 min to 14 h 50 min
Cloud cover
74%
Humidity
80%
Dew point
45°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 168°F47°F86°F 199429°F 192646%0%
Aug 268°F46°F84°F 193331°F 193146%0%
Aug 367°F46°F84°F 202132°F 193146%0%
Aug 467°F46°F84°F 199928°F 192646%0%
Aug 567°F46°F84°F 199425°F 193547%0%
Aug 667°F46°F86°F 192128°F 193747%0%
Aug 766°F45°F83°F 196831°F 193547%0%
Aug 866°F45°F82°F 197729°F 193547%0%
Aug 966°F45°F80°F 195731°F 192847%0%
Aug 1066°F45°F82°F 197730°F 196947%0%
Aug 1165°F45°F90°F 190729°F 196947%0%
Aug 1265°F44°F84°F 192629°F 193047%0%
Aug 1365°F44°F87°F 193630°F 200247%0%
Aug 1465°F44°F85°F 192623°F 196946%0%
Aug 1564°F44°F86°F 192620°F 198546%0%
Aug 1664°F44°F82°F 195025°F 195246%0%
Aug 1764°F43°F80°F 200427°F 195246%0%
Aug 1864°F43°F83°F 200428°F 198146%
Aug 1963°F43°F80°F 195027°F 199745%
Aug 2063°F42°F82°F 192326°F 193145%
Aug 2163°F42°F85°F 192326°F 193145%
Aug 2262°F42°F85°F 192327°F 195245%
Aug 2362°F42°F85°F 192324°F 192445%
Aug 2462°F41°F82°F 192325°F 194844%
Aug 2561°F41°F78°F 192326°F 192444%
Aug 2661°F41°F79°F 192321°F 193344%
Aug 2761°F40°F79°F 198123°F 193344%
Aug 2860°F40°F75°F 192322°F 198444%
Aug 2960°F40°F75°F 200724°F 192243%
Aug 3060°F39°F73°F 194121°F 192243%
Aug 3159°F39°F74°F 194121°F 192243%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Yukon-Koyukuk Census Area, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (AKDT).

August 1
sunrise 5:02 AM, sunset 11:30 PM
August 31
sunrise 6:45 AM, sunset 9:35 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00026529 (Tanana Calhoun Mem AP), public domain. Records: NOAA GHCN-Daily, station USW00026529, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.