Climate Comfort Score
44/100
Moderate
NOAA 1991–2020 normals 50°F annual avg Public-domain federal data
Cascadia, OR Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 50°F
- Avg annual temp
- 44/100
- Comfort score
- 63.1"
- Annual precip
- 167d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Cascadia
Cascadia, Oregon averages 50°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.
- 50°F
- annual average temperature (NOAA normal)
- 44/100
- comfort score, milder than 8% of U.S. cities
- 63.1"
- annual precipitation
- 167 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
50°F (10°C)
Avg High
61°F
Avg Low
39°F
Annual Precip
63.1"
Comfort Score
44/100
Moderate
Avg Annual Temperature
50°F
30-year mean (NOAA NCEI)
Annual Precipitation
63.1"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Cascadia) 44.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Cascadia area.
How Cascadia compares to every U.S. city
Cascadia's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 Top 92% higher than 8% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Cascadia
MethodologyZooming out from Cascadia's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 45°F (7°C) | 33°F (0°C) | 39°F (4°C) | 7.9" | 15.6 | 0.0 |
| February | 50°F (10°C) | 33°F (0°C) | 41°F (5°C) | 6.3" | 13.6 | 0.0 |
| March | 54°F (12°C) | 34°F (1°C) | 44°F (7°C) | 7.1" | 11.7 | 0.0 |
| April | 58°F (15°C) | 37°F (3°C) | 48°F (9°C) | 6.3" | 5.0 | 0.0 |
| May | 65°F (18°C) | 42°F (6°C) | 54°F (12°C) | 4.6" | 1.5 | 0.3 |
| June | 70°F (21°C) | 46°F (8°C) | 58°F (14°C) | 3.1" | 0.0 | 0.8 |
| July | 79°F (26°C) | 49°F (10°C) | 64°F (18°C) | 0.6" | 0.0 | 2.7 |
| August | 80°F (27°C) | 48°F (9°C) | 64°F (18°C) | 0.9" | 0.1 | 3.0 |
| September | 74°F (23°C) | 44°F (7°C) | 59°F (15°C) | 2.3" | 0.9 | 1.2 |
| October | 62°F (17°C) | 39°F (4°C) | 51°F (10°C) | 5.5" | 5.0 | 0.0 |
| November | 50°F (10°C) | 35°F (2°C) | 43°F (6°C) | 8.9" | 10.6 | 0.0 |
| December | 44°F (7°C) | 33°F (0°C) | 38°F (3°C) | 9.6" | 15.3 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 7.9"
18.6 days with precipitation
February 6.3"
16.2 days with precipitation
March 7.1"
18.1 days with precipitation
April 6.3"
18.3 days with precipitation
May 4.6"
13.9 days with precipitation
June 3.1"
10.0 days with precipitation
July 0.6"
3.7 days with precipitation
August 0.9"
3.9 days with precipitation
September 2.3"
5.9 days with precipitation
October 5.5"
12.6 days with precipitation
November 8.9"
18.3 days with precipitation
December 9.6"
19.0 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 13
50% probability date
Last Spring Freeze
April 29
50% probability date
Growing Season
167 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,540
Higher = more heating needed
Cooling Degree Days
118
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Cascadia's climate means for you
Cascadia runs 50°F a year - peaking in July, coldest in December.
- Gardeners get about 167 frost-free days, with the last spring freeze near April 29 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,540 heating and 118 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Cascadia, OR
An annual average temperature of 50°F, ranging from a mean daily high of 61°F to a mean daily low of 39°F is what the NOAA 1991–2020 climate normals report for Cascadia, Oregon. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00351433 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Cascadia averages 63.1 inches of precipitation a year, predominantly as rainfall, and that matters as much to daily life here as temperature does. The frost-free season averages 167 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 29 and the first fall freeze near October 13. As for energy demand, 5,540 heating degree days and 118 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Cascadia scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings December-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.
Frequently Asked Questions
What is the average temperature in Cascadia, OR? ▼
The average annual temperature in Cascadia, Oregon is 50°F. The warmest month averages 80°F (27°C) and the coldest averages 33°F (0°C).
How much rain does Cascadia get? ▼
Cascadia receives 63.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Cascadia? ▼
Cascadia has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Cascadia? ▼
Cascadia has approximately 167 frost-free days per year, with the last spring freeze around April 29 and the first fall freeze around October 13.
How much energy does heating and cooling require in Cascadia? ▼
Cascadia has 5,540 heating degree days and 118 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Cascadia climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00351433 near Cascadia.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00351433. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.