Weather Trends for the Columbia Gorge

Seasonal Expectations:

What's it going to be like in the Columbia Gorge and on Mt. Hood?

Planning a trip to Oregon? Here's some information to help you anticipate the kinds of weather conditions you may experience.

First, let's clear up the "rainy Oregon" perception. Yes, it rains a lot in Oregon ... if you're visiting during the months of November, December, January, February or March.

If you plan your trip in July, August or September, you can expect wonderful and dry days. It's impossible, of course, to predict what the weather will be like a few months from now. Looking back at past weather data, however, helps create some clear pictures.

The following charts show the average daily high and low temperatures each month for selected locations throughout the state. The charts also list the average monthly rainfall (and snowfall where appropriate). These averages where established by the Oregon Climate Service for the years 1971-2008.


 

Temperatures are daily averages; precipitation and snowfall are monthly average inches

  Jan Feb Mar April May June July Aug Sept Oct Nov Dec
Government Camp/Mt. Hood                        
High Temp 35.5 38.0 41.0 45.4 52.3 59.3 67.5 68.4 62.7 53.3 40.0 35.7
Low Temp 24.2 25.4 27.6 30.4 35.2 40.7 46.3 46.8 42.6 36.2 29.1 24.8
Precip 12.86 10.23 8.50 7.54 5.20 3.80 1.36 1.61 3.60 6.51 13.13 14.38
Snow 53.94 41.53 36.68 25.63 7.63 .63 .00 .00 .30 5.33 35.98 45.62
Hood River                        
High Temp 40.8 46.2 54.4 61.2 68.7 74.6 81.6 82.3 76.1 64.5 49.3 41.2
Low Temp 27.9 30.0 34.0 38.4 44.3 49.7 53.3 52.1 44.3 36.7 33.3 29.0
Precip 5.39 4.36 2.88 1.81 1.08 .79 .31 .49 1.15 2.21 5.35 5.93
The Dalles                        
High Temp 40.8 47.2 56.8 64.7 72.9 79.2 86.8 87.3 79.9 66.8 50.2 41.7
Low Temp 29.0 31.8 36.6 42.2 48.8 55.2 60.1 58.8 50.9 41.7 35.4 30.6
Precip 2.62 2.07 1.20 .85 .54 .42 .18 .36 .48 .96 2.03 2.77