Alaska · county records since 1925, through September 2026.
Weather › Alaska › Yukon-Koyukuk Census Area
The last 12 months brought 21.7 inches of rain and snow to Yukon-Koyukuk Census Area, 137% of the usual 15.8. Yukon-Koyukuk Census Area has warmed about 0.8° per decade since 1970.
That is the 1991 to 2020 average for these dates in Yukon-Koyukuk Census Area. The Weather Service forecast fills in below.
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Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1925.
Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.
| Month | Usual high / low | Usual rain | Warmest | Coldest |
|---|---|---|---|---|
| January | 2° / -12° | 0.7 in | 16.5° 1981 | -25.3° 2012 |
| February | 10° / -6° | 0.7 in | 11.2° 1942 | -22.6° 1990 |
| March | 19° / -2° | 0.6 in | 25.0° 2019 | -8.6° 1959 |
| April | 37° / 17° | 0.6 in | 35.6° 1940 | 11.9° 1985 |
| May | 55° / 34° | 0.8 in | 50.0° 2015 | 33.5° 1964 |
| June | 67° / 46° | 1.6 in | 61.7° 2004 | 48.4° 1949 |
| July | 68° / 49° | 2.5 in | 62.0° 2019 | 51.9° 1959 |
| August | 61° / 43° | 2.9 in | 57.6° 1977 | 45.4° 1969 |
| September | 49° / 33° | 2.0 in | 46.3° 1995 | 29.1° 1992 |
| October | 30° / 17° | 1.3 in | 32.7° 2013 | 10.9° 1996 |
| November | 12° / -1° | 1.2 in | 18.8° 1979 | -9.0° 1927 |
| December | 5° / -8° | 0.8 in | 14.2° 2017 | -23.2° 1956 |
Warmest and coldest are the month's whole-month average temperature, with the year it happened.