Updated October 2026
Klondike Gold Rush - Seattle Unit National Historical Park Weather by Month
Klondike Gold Rush - Seattle Unit National Historical Park is warmest in August, when the nearest NOAA climate station averages a high of 77°F and a low of 58°F, and coldest in December, with an average high of 48°F and an average low of 36°F. November is the wettest month, with about 5.8 inches of precipitation.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 3.8 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Klondike Gold Rush - Seattle Unit National Historical Park can differ from these, particularly with elevation.
Warmest month
Aug
77°F avg high
Coldest month
Dec
36°F avg low
Wettest month
Nov
5.8 in avg
Longest days
Jun
15.8 h of daylight
Average weather at Klondike Gold Rush - Seattle Unit by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 49°F | 37°F | 5.2 in | 8.6 h |
| February | 51°F | 37°F | 3.7 in | 10.0 h |
| March | 55°F | 39°F | 3.9 in | 11.6 h |
| April | 60°F | 44°F | 2.9 in | 13.4 h |
| May | 67°F | 49°F | 2.0 in | 14.9 h |
| June | 71°F | 54°F | 1.2 in | 15.8 h |
| July | 77°F | 58°F | 0.6 in | 15.4 h |
| August | 77°F | 58°F | 0.8 in | 14.1 h |
| September | 72°F | 54°F | 1.4 in | 12.3 h |
| October | 61°F | 46°F | 3.5 in | 10.6 h |
| November | 53°F | 40°F | 5.8 in | 9.0 h |
| December | 48°F | 36°F | 5.5 in | 8.2 h |
| Year total | 36.5 in |
NOAA 1991–2020 climate normals from station USW00024234, 3.8 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Klondike Gold Rush - Seattle Unit is at that time of year.
Klondike Gold Rush - Seattle Unit weather by season
Winter: December to February
Average highs climb from 48°F in December to 51°F in February, with average lows near 37°F. Together the three months average 14.4 inches of precipitation, about 39% of the yearly total and more than in any other season. Daylight is at its shortest, about 8.2 hours in December.
Spring: March to May
Average highs climb from 55°F in March to 67°F in May, with average lows between 39°F and 49°F. Together the three months average 8.8 inches of precipitation, about 24% of the yearly total. Daylight lengthens from about 11.6 hours in March to 14.9 in May.
Summer: June to August
Average highs climb from 71°F in June to 77°F in August, with average lows between 54°F and 58°F. Together the three months average 2.6 inches of precipitation, about 7% of the yearly total and less than in any other season. Daylight is at its longest, about 15.8 hours in June.
Fall: September to November
Average highs fall from 72°F in September to 53°F in November, with average lows between 40°F and 54°F. Together the three months average 10.7 inches of precipitation, about 29% of the yearly total. Daylight shortens from about 12.3 hours in September to 9.0 in November.
What the National Park Service says about the weather
Warm dry summers from mid-July through mid-Sept, all the rest of the year, mainly rainy and cool.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Klondike Gold Rush - Seattle Unit
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 47.60°N, 122.33°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Klondike Gold Rush - Seattle Unit National Historical Park →
Weather and crowds together
August, the warmest month, sees about 1.9× the visitors of the park's average month. July is the busiest month of the year and January the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Klondike Gold Rush - Seattle Unit National Historical Park. For hotels, cabins and rentals close to the park, see where to stay near Klondike Gold Rush - Seattle Unit.
Where to stay near Klondike Gold Rush - Seattle Unit
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Frequently Asked Questions
August is the warmest month at Klondike Gold Rush - Seattle Unit National Historical Park, with an average high of 77°F and an average low of 58°F. That is the 1991–2020 average at the nearest long-record NOAA station, 3.8 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
December is the coldest month at Klondike Gold Rush - Seattle Unit National Historical Park, with an average low of 36°F and an average high of 48°F, based on NOAA 1991–2020 climate normals.
November is the wettest month, with about 5.8 inches of precipitation. July is the driest, at about 0.6 inches. The station records about 36.5 inches of precipitation in an average year.
Daylight at Klondike Gold Rush - Seattle Unit National Historical Park runs from about 8.2 hours a day in December to about 15.8 hours in June, computed from the park's latitude.
Weather at nearby parks
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Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USW00024234), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.