Alaska Climate Research Center

The Alaska State Climate Center
The Alaska State Climate Center
The Alaska State Climate Center

Juneau September 2010


Highlights

The mean monthly temperature in Juneau was 50.9°F, 1.4°F above normal for the month. The high temperature was 72°F on the 15th, and the low was 31°F on the 21st. Juneau set four new high temperature records for the following days; the 15th recorded a high of 72°F, the 16th recorded 70°F, the 17th recorded 70°F and the 18th recorded 70°F. The old records were, respectively, 67°F in 1967, 66°F in 1957, 64°F in 1986 and 65°F in 1957. The first frost date for Juneau occurred on the 21st with a low temperature of 31°F, the only day with a temperature below freezing. The recorded precipitation for September was 6.24”, 18% below normal. A new precipitation record of 1.11” was set on the 3rd, smashing the old record of 0.97” set in 1983. Eight days following that new record, Juneau began a series of dry days, culminating in 12-consecutive dry days, the 11th through the 22nd, a new record; the old record was 10-consecutive dry days set in 1973. Winds averaged 5.3 mph at the airport and on the 28th a peak gust of 43 mph was reported.