Climate Comfort Score
63/100
Good
NOAA 1991–2020 normals 56°F annual avg Public-domain federal data
Illahe, OR Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 56°F
- Avg annual temp
- 63/100
- Comfort score
- 232d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Illahe
Illahe, Oregon averages 56°F a year and scores 63/100 on the comfort index - good, milder than 47% of U.S. cities.
- 56°F
- yearly average temperature, NOAA normal
- 63/100
- comfort score, milder than 47% of U.S. cities
- 232 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
56°F (13°C)
Avg High
69°F
Avg Low
43°F
Annual Precip
N/A
Comfort Score
63/100
Good
Avg Annual Temperature
56°F
30-year mean (NOAA NCEI)
Annual Precipitation
N/A
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Illahe) 63.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Illahe area.
How Illahe compares to every U.S. city
Illahe's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
63 Top 53% higher than 47% 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 Illahe
MethodologyZooming out from Illahe'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 | 51°F (11°C) | 37°F (3°C) | 44°F (7°C) | N/A | 4.9 | 0.0 |
| February | 54°F (12°C) | 38°F (3°C) | 46°F (8°C) | N/A | 4.2 | 0.0 |
| March | 59°F (15°C) | 39°F (4°C) | 49°F (9°C) | N/A | 1.8 | 0.0 |
| April | 65°F (18°C) | 40°F (4°C) | 52°F (11°C) | N/A | 0.4 | 0.1 |
| May | 75°F (24°C) | 43°F (6°C) | 59°F (15°C) | N/A | 0.1 | 1.8 |
| June | 81°F (27°C) | 49°F (9°C) | 65°F (18°C) | N/A | 0.0 | 4.2 |
| July | 90°F (32°C) | 52°F (11°C) | 71°F (22°C) | N/A | 0.0 | 15.2 |
| August | 91°F (33°C) | 52°F (11°C) | 72°F (22°C) | N/A | 0.0 | 16.8 |
| September | 86°F (30°C) | 48°F (9°C) | 67°F (19°C) | N/A | 0.0 | 11.0 |
| October | 69°F (21°C) | 44°F (6°C) | 56°F (13°C) | N/A | 0.5 | 0.1 |
| November | 55°F (13°C) | 40°F (4°C) | 47°F (9°C) | N/A | 2.5 | 0.0 |
| December | 51°F (10°C) | 36°F (2°C) | 43°F (6°C) | N/A | 4.7 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January N/A
February N/A
March N/A
April N/A
May N/A
June N/A
July N/A
August N/A
September N/A
October N/A
November N/A
December N/A
Frost Dates & Growing Season
First Fall Freeze
November 17
50% probability date
Last Spring Freeze
March 30
50% probability date
Growing Season
232 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,883
Higher = more heating needed
Cooling Degree Days
604
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
What Illahe's climate means for you
Illahe runs 56°F a year - peaking in August, coldest in December.
- Gardeners get about 232 frost-free days, with the last spring freeze near March 30 - plan the planting calendar around it, not the regional average.
- Energy bills track 3,883 heating and 604 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: Illahe, OR
The NOAA 1991–2020 climate normals describe Illahe, Oregon as a location with an annual average temperature of 56°F, ranging from a mean daily high of 69°F to a mean daily low of 43°F. August is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USC00354133, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Illahe receives roughly an uncharted amount of precipitation each year, predominantly as rainfall. The frost-free season averages 232 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 30 and the first fall freeze near November 17. For energy use, 3,883 heating degree days and 604 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Illahe scores 63/100 (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 Illahe, OR? ▼
The average annual temperature in Illahe, Oregon is 56°F. The warmest month averages 91°F (33°C) and the coldest averages 36°F (2°C).
How much rain does Illahe get? ▼
Illahe receives an unknown amount of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Illahe? ▼
Illahe has a climate comfort score of 63/100 (Good), milder than 47% of U.S. cities in the PlainClimate database.
When is the growing season in Illahe? ▼
Illahe has approximately 232 frost-free days per year, with the last spring freeze around March 30 and the first fall freeze around November 17.
How much energy does heating and cooling require in Illahe? ▼
Illahe has 3,883 heating degree days and 604 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 Illahe climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00354133 near Illahe.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00354133. 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.