Sitka, AK Climate

Summary Graph

The summary climate graph for Sitka, AK shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.

Graph of average and extreme temperature ranges by day for Sitka, AK.


The warmest month in Sitka Rocky Gutierrez, Sitka, Alaska is August with an average high temperature of 62.9°F. The hottest day on record was July 31 1976 when the temperature hit 88.0°F. During January the overnight temperature drops to an average of 31.6°F with the lowest temperature of 2.1°F being recorded on January 9 1975.

Warmest Days

Warmest Months

Coldest Days

Coldest Months

The warmest days on record are:

31 Jul 197688°F
7 Jul 197586°F
14 Sep 197684.9°F
6 Jul 200984°F
13 Aug 199082.9°F

The warmest months on average were:

August 200469°F
August 197767.3°F
August 197866.5°F
August 197966.2°F
July 197666.1°F

The coldest days on record are:

9 Jan 19752.1°F
26 Nov 19852.1°F
31 Jan 19893.9°F
12 Feb 19754.1°F
15 Mar 20065°F

The coldest months on average were:

February 197923.1°F
January 197424.2°F
November 198524.5°F
January 199624.8°F
January 198225°F


The wettest month in Sitka, AK is October with an average of 13.3 inches of rain falling on 19 to 20 days. The driest month by average rainfall in Sitka, AK is June with an average of 3.1 inches of rain falling on 14 to 15 days. Although in February it typically rains on less days with 6.0 inches falling in 12 to 13 days

Wettest Days

The wettest days on record are:

21 September 19943.7 inches
21 September 20043.7 inches
1 September 20063.4 inches
7 September 19813 inches
13 September 19793 inches

Wettest Months

The wettest months on record are:

October 197828.4 inches
September 198720.2 inches
October 198620.1 inches
October 197420 inches
October 198019.7 inches

Driest Months

The driest months on record are:

April 19950 inches
March 19950 inches
February 19890.3 inches
March 19740.4 inches
June 19730.6 inches