Last updated: June 24, 2025
In February, the average temperature in Grand Coulee, United States hovers around -2°C (28°F). Expect a chilly range, with minimum temperatures dipping to -15°C (4°F) and maximums reaching up to 11°C (53°F). You'll want to be prepared for some wet days, as precipitation averages 47 mm (1.9 in) over approximately 9 days. With a humidity level of 86%, it's a perfect time to enjoy the crisp winter air!
In February in Grand Coulee, the average temperature is -2°C (28°F). Maximum temperatures can reach 11°C (53°F), while the minimum can dip as low as -15°C (4°F). Travelers should be prepared for a mix of cold and mild weather during this time.
In Grand Coulee in February, the precipitation amount is 47 mm (1.9 in) spread over a period of 9 days.
In Grand Coulee in February, humidity is 86%. With an average temperature of -2°C (28°F), this humidity feels like a dense fog wrapping around you, making it feel even colder and creating an uncomfortable chill that can dampen any plans for outdoor exploration.
In Grand Coulee in February, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Grand Coulee for better planning.
UV Risk Categories
Weather in Grand Coulee varies notably across the year, with each month offering distinct climate conditions. This page compares February’s weather to other months in Grand Coulee, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 67 mm (2.6 inches) | 85% | low |
| February Weather | -2°C (28°F) | 47 mm (1.9 inches) | 86% | moderate |
| March Weather | 4°C (39°F) | 46 mm (1.8 inches) | 86% | moderate |
| April Weather | 9°C (48°F) | 39 mm (1.6 inches) | 82% | high |
| May Weather | 15°C (59°F) | 37 mm (1.4 inches) | 77% | very high |
| June Weather | 20°C (68°F) | 13 mm (0.5 inches) | 79% | very high |
| July Weather | 24°C (75°F) | 4 mm (0.1 inches) | 77% | very high |
| August Weather | 23°C (74°F) | 8 mm (0.3 inches) | 62% | very high |
| September Weather | 17°C (62°F) | 24 mm (1.0 inches) | 60% | high |
| October Weather | 8°C (48°F) | 42 mm (1.7 inches) | 80% | moderate |
| November Weather | 3°C (37°F) | 51 mm (2.0 inches) | 87% | moderate |
| December Weather | -2°C (29°F) | 57 mm (2.2 inches) | 86% | low |