Grand Coulee Dam
Grand Coulee, United States
The Grand Coulee Dam is a gravity dam, a hydroelectric power station, and a pumped-storage power station. It is a Historic Civil Engineering Landmark located in Grand Coulee, United States, and is 1,592 m long. It is one of the 120 sights of the United States on this site and is the 109th most looked-up sight in the country on English Wikipedia.
Planning a visit
July and August are suitable for visits due to low rainfall of about 3 rainy days each and daily highs of 30 °C and 31 °C. The wettest months are November and December, which have about 13 rainy days and highs of 6 °C and 0 °C. In January, the daily low can reach -6 °C. In May and June, daily highs are 22 °C and 26 °C.
The dam is located in Okanogan County and Grant County. Travelers can reach the site via Pangborn Memorial Airport in Wenatchee, which is 111 km away, or Spokane International Airport in Spokane, which is 114 km away. The site is located 3,486 km from Washington, D.C.
Weather by month
The warmest month is July, with an average high of 31 °C. Rain is spread fairly evenly through the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 1 | 4 | 10 | 16 | 22 | 26 | 31 | 30 | 25 | 16 | 6 | 0 |
| Average low, °C | -6 | -4 | 1 | 5 | 10 | 14 | 18 | 18 | 13 | 7 | 0 | -6 |
| Rainfall, mm | 30 | 24 | 25 | 21 | 30 | 25 | 17 | 9 | 12 | 19 | 36 | 39 |
| Rainy days | 14 | 9 | 9 | 8 | 10 | 7 | 3 | 3 | 4 | 8 | 13 | 13 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
