Climate Comfort Score
53/100
Moderate
NOAA 1991–2020 normals 51°F annual avg Public-domain federal data
Headworks Portland Wtr B, OR Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 51°F
- Avg annual temp
- 53/100
- Comfort score
- 79.0"
- Annual precip
- 236d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Headworks Portland Wtr B
Headworks Portland Wtr B, Oregon averages 51°F a year and scores 53/100 on the comfort index - moderate, milder than 26% of U.S. cities.
- 51°F
- annual average temperature (NOAA normal)
- 53/100
- comfort score, milder than 26% of U.S. cities
- 79.0"
- annual precipitation · 3" snow
- 236 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
51°F (11°C)
Avg High
59°F
Avg Low
44°F
Annual Precip
79.0"
Annual Snow
2.9"
Comfort Score
53/100
Moderate
Avg Annual Temperature
51°F
30-year mean (NOAA NCEI)
Annual Precipitation
79.0"
Plus 2.9" of snow
Comfort score vs national 100-point ceiling (Headworks Portland Wtr B) 53.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Headworks Portland Wtr B area.
How Headworks Portland Wtr B compares to every U.S. city
Headworks Portland Wtr B's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
53 Top 74% higher than 26% 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 Headworks Portland Wtr B
MethodologyHeadworks Portland Wtr B's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running warmer than the 30-year mean.
- 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 44°F (7°C) | 35°F (2°C) | 40°F (4°C) | 10.3" | 0.7" | 8.9 | 0.0 |
| February | 47°F (8°C) | 36°F (2°C) | 42°F (5°C) | 8.0" | 1.2" | 7.0 | 0.0 |
| March | 52°F (11°C) | 37°F (3°C) | 45°F (7°C) | 8.5" | 0.2" | 4.3 | 0.0 |
| April | 57°F (14°C) | 41°F (5°C) | 49°F (9°C) | 7.3" | 0.0" | 0.5 | 0.0 |
| May | 64°F (18°C) | 46°F (8°C) | 55°F (13°C) | 5.7" | 0.0" | 0.0 | 0.4 |
| June | 69°F (21°C) | 50°F (10°C) | 59°F (15°C) | 4.0" | 0.0" | 0.0 | 0.9 |
| July | 77°F (25°C) | 54°F (12°C) | 65°F (18°C) | 0.9" | 0.0" | 0.0 | 3.4 |
| August | 78°F (25°C) | 54°F (12°C) | 66°F (19°C) | 1.2" | 0.0" | 0.0 | 3.5 |
| September | 72°F (22°C) | 51°F (11°C) | 61°F (16°C) | 3.4" | 0.0" | 0.0 | 1.5 |
| October | 60°F (16°C) | 45°F (7°C) | 53°F (11°C) | 7.4" | 0.0" | 0.3 | 0.1 |
| November | 49°F (10°C) | 40°F (4°C) | 44°F (7°C) | 10.6" | 0.2" | 2.9 | 0.0 |
| December | 43°F (6°C) | 35°F (2°C) | 39°F (4°C) | 11.7" | 0.6" | 8.1 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 10.3"
Snow: 0.7"
21.8 days with precipitation
February 8.0"
Snow: 1.2"
18.3 days with precipitation
March 8.5"
Snow: 0.2"
21.4 days with precipitation
April 7.3"
20.3 days with precipitation
May 5.7"
16.1 days with precipitation
June 4.0"
12.4 days with precipitation
July 0.9"
5.4 days with precipitation
August 1.2"
5.0 days with precipitation
September 3.4"
8.7 days with precipitation
October 7.4"
16.9 days with precipitation
November 10.6"
Snow: 0.2"
21.2 days with precipitation
December 11.7"
Snow: 0.6"
22.8 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 18
50% probability date
Last Spring Freeze
March 27
50% probability date
Growing Season
236 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,144
Higher = more heating needed
Cooling Degree Days
209
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
What Headworks Portland Wtr B's climate means for you
Headworks Portland Wtr B runs 51°F a year - peaking in August, coldest in December.
- Gardeners get about 236 frost-free days, with the last spring freeze near March 27 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,144 heating and 209 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: Headworks Portland Wtr B, OR
An annual average temperature of 51°F, ranging from a mean daily high of 59°F to a mean daily low of 44°F is what the NOAA 1991–2020 climate normals report for Headworks Portland Wtr B, Oregon. August is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00353770 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Beyond temperature, Headworks Portland Wtr B averages 79.0 inches of precipitation annually, with 2.9 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 236 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 27 and the first fall freeze near November 18. Turning to energy use, 5,144 heating degree days and 209 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Headworks Portland Wtr B scores 53/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for August-driven heat, or deep winter for December-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in Headworks Portland Wtr B, OR? ▼
The average annual temperature in Headworks Portland Wtr B, Oregon is 51°F. The warmest month averages 78°F (25°C) and the coldest averages 35°F (2°C).
How much rain does Headworks Portland Wtr B get? ▼
Headworks Portland Wtr B receives 79.0 inches of precipitation annually, including 2.9 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Headworks Portland Wtr B? ▼
Headworks Portland Wtr B has a climate comfort score of 53/100 (Moderate), milder than 26% of U.S. cities in the PlainClimate database.
When is the growing season in Headworks Portland Wtr B? ▼
Headworks Portland Wtr B has approximately 236 frost-free days per year, with the last spring freeze around March 27 and the first fall freeze around November 18.
How much energy does heating and cooling require in Headworks Portland Wtr B? ▼
Headworks Portland Wtr B has 5,144 heating degree days and 209 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 Headworks Portland Wtr B climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00353770 near Headworks Portland Wtr B.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00353770. 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.