Climate Comfort Score
68/100
Good
NOAA 1991–2020 normals 52°F annual avg Public-domain federal data
Cottage Grove Dam, OR Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 52°F
- Avg annual temp
- 68/100
- Comfort score
- 47.6"
- Annual precip
- 203d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Cottage Grove Dam
Cottage Grove Dam, Oregon averages 52°F a year and scores 68/100 on the comfort index - good, milder than 58% of U.S. cities.
- 52°F
- yearly average temperature, NOAA normal
- 68/100
- comfort score, milder than 58% of U.S. cities
- 47.6"
- yearly precipitation total
- 203 days
- frost-free days per growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
52°F (11°C)
Avg High
63°F
Avg Low
41°F
Annual Precip
47.6"
Comfort Score
68/100
Good
Avg Annual Temperature
52°F
30-year mean (NOAA NCEI)
Annual Precipitation
47.6"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Cottage Grove Dam) 68.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Cottage Grove Dam area.
How Cottage Grove Dam compares to every U.S. city
Cottage Grove Dam's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 42% higher than 58% 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 Cottage Grove Dam
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Cottage Grove Dam's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 48°F (9°C) | 34°F (1°C) | 41°F (5°C) | 6.3" | 13.4 | 0.0 |
| February | 51°F (11°C) | 34°F (1°C) | 43°F (6°C) | 5.1" | 11.8 | 0.0 |
| March | 56°F (13°C) | 36°F (2°C) | 46°F (8°C) | 5.5" | 9.3 | 0.0 |
| April | 60°F (16°C) | 39°F (4°C) | 49°F (10°C) | 4.7" | 2.0 | 0.0 |
| May | 67°F (19°C) | 44°F (6°C) | 55°F (13°C) | 3.1" | 0.4 | 0.2 |
| June | 72°F (22°C) | 48°F (9°C) | 60°F (16°C) | 1.7" | 0.0 | 1.0 |
| July | 81°F (27°C) | 52°F (11°C) | 66°F (19°C) | 0.5" | 0.0 | 4.0 |
| August | 82°F (28°C) | 51°F (11°C) | 67°F (19°C) | 0.5" | 0.0 | 4.5 |
| September | 77°F (25°C) | 48°F (9°C) | 62°F (17°C) | 1.6" | 0.0 | 2.1 |
| October | 65°F (18°C) | 42°F (6°C) | 53°F (12°C) | 3.9" | 1.4 | 0.1 |
| November | 53°F (12°C) | 37°F (3°C) | 45°F (7°C) | 6.4" | 8.2 | 0.0 |
| December | 46°F (8°C) | 33°F (1°C) | 40°F (4°C) | 8.4" | 14.6 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 6.3"
February 5.1"
March 5.5"
April 4.7"
May 3.1"
June 1.7"
July 0.5"
August 0.5"
September 1.6"
October 3.9"
November 6.4"
December 8.4"
Frost Dates & Growing Season
First Fall Freeze
November 1
50% probability date
Last Spring Freeze
April 12
50% probability date
Growing Season
203 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,886
Higher = more heating needed
Cooling Degree Days
231
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
What Cottage Grove Dam's climate means for you
Cottage Grove Dam runs 52°F a year - peaking in August, coldest in December.
- Gardeners get about 203 frost-free days, with the last spring freeze near April 12 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,886 heating and 231 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: Cottage Grove Dam, OR
Based on station USC00351902 feeding NOAA's 1991–2020 climate normals, Cottage Grove Dam, Oregon averages 52°F a year, ranging from a mean daily high of 63°F to a mean daily low of 41°F. August is typically the warmest month of the year, while December is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Cottage Grove Dam sees about 47.6 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 203 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 12 and the first fall freeze near November 1. On the energy side, 4,886 heating degree days and 231 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Cottage Grove Dam scores 68/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, August-driven heat peaks in summer, and December-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Cottage Grove Dam, OR? ▼
The average annual temperature in Cottage Grove Dam, Oregon is 52°F. The warmest month averages 82°F (28°C) and the coldest averages 33°F (1°C).
How much rain does Cottage Grove Dam get? ▼
Cottage Grove Dam receives 47.6 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Cottage Grove Dam? ▼
Cottage Grove Dam has a climate comfort score of 68/100 (Good), milder than 58% of U.S. cities in the PlainClimate database.
When is the growing season in Cottage Grove Dam? ▼
Cottage Grove Dam has approximately 203 frost-free days per year, with the last spring freeze around April 12 and the first fall freeze around November 1.
How much energy does heating and cooling require in Cottage Grove Dam? ▼
Cottage Grove Dam has 4,886 heating degree days and 231 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 Cottage Grove Dam climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00351902 near Cottage Grove Dam.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00351902. 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.