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New England/Mid Atlantic 
Southeast
Southern
Midwest/Ohio Valley
High Plains
Northwest
Southwest
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The Northwestern region includes the states of Idaho, Montana,
Oregon, Washington and Wyoming.
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January is cool and wet for the coastal sections of the
Northwestern region. It is cooler but drier away from the coast. The Pacific
coast stays damp as moisture comes from the Pacific Ocean. Higher elevations
are much colder and get a lot of snow.
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Highs / Lows |
Precip. |
Snow |
Rain |
| Boise, ID |
36° / 22° |
1.4" |
6.8" |
0.6" |
| Missoula, MT |
30° / 14° |
1.2" |
12.3" |
0.1" |
| Portland, OR |
45° / 34° |
5.4" |
3.3" |
5.0" |
| Seattle, WA |
45° / 35° |
5.6" |
5.0" |
5.0" |
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July is warm and dry. The Pacific Ocean is cooler
than the land, so it doesn't provide hot humid air like other regions.
It actually makes it cooler along the coast than inland. July is a sunny
month for the northwest. |
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Highs / Lows |
Rain |
| Boise, ID |
90° / 58° |
0.3" |
| Missoula, MT |
84° / 50° |
1.0" |
| Portland, OR |
80° / 57° |
0.5" |
| Seattle, WA |
75° / 54° |
0.8" |
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The hottest recorded temperature in the Northwestern region is 119 degrees
Fahrenheit in Pendelton, Oregon on August 10, 1898.
The coldest recorded temperature is - 70 degrees Fahrenheit in Rodgers
Pass, Montana on January 20, 1954.
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For more climate data, look at the Weather
Research Center site. Climate data is listed for many cities, including
temperature and precipitation information. |
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Take a climate quiz
- next! |
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