Alaska Climate Research Center

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Juneau September 2015


The mean monthly temperature for September in Juneau was 49.2°F, just 0.8°F below normal. The warmest temperature for the month was 67°F on the 3rd, while the coldest was 32°F on the 22nd.

Precipitation was heavier than normal with 11.51" measured and 8.64" expected. Contributing to this was the 1.62" on the 29th, which broke the old 1970 record for that day by 0.1". The average wind speed was 8.5 mph while the highest wind speed of 51 mph occurred on the 29th blowing from a southeasterly direction.