Climate Comfort Score
72/100
Good
NOAA 1991–2020 normals 54°F annual avg Public-domain federal data
Renton Muni, WA Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 54°F
- Avg annual temp
- 72/100
- Comfort score
- 34.7"
- Annual precip
- 248d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Renton Muni
Renton Muni, Washington averages 54°F a year and scores 72/100 on the comfort index - good, milder than 66% of U.S. cities.
- 54°F
- annual average temperature (NOAA normal)
- 72/100
- comfort score, milder than 66% of U.S. cities
- 34.7"
- yearly precipitation total
- 248 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
54°F (12°C)
Avg High
61°F
Avg Low
46°F
Annual Precip
34.7"
Comfort Score
72/100
Good
Avg Annual Temperature
54°F
30-year mean (NOAA NCEI)
Annual Precipitation
34.7"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Renton Muni) 72.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Renton Muni area.
How Renton Muni compares to every U.S. city
Renton Muni's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
72 Top 34% higher than 66% 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 Renton Muni
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Renton Muni, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- 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) | 37°F (3°C) | 43°F (6°C) | 4.9" | 7.4 | 0.0 |
| February | 50°F (10°C) | 37°F (3°C) | 44°F (6°C) | 3.2" | 7.1 | 0.0 |
| March | 55°F (13°C) | 40°F (4°C) | 47°F (8°C) | 3.7" | 3.1 | 0.0 |
| April | 60°F (15°C) | 43°F (6°C) | 51°F (11°C) | 2.8" | 0.2 | 0.0 |
| May | 66°F (19°C) | 49°F (9°C) | 58°F (14°C) | 1.9" | 0.0 | 0.1 |
| June | 71°F (22°C) | 54°F (12°C) | 62°F (17°C) | 1.5" | 0.0 | 0.5 |
| July | 77°F (25°C) | 58°F (14°C) | 67°F (20°C) | 0.6" | 0.0 | 1.7 |
| August | 78°F (25°C) | 57°F (14°C) | 68°F (20°C) | 0.9" | 0.0 | 1.4 |
| September | 72°F (22°C) | 53°F (12°C) | 62°F (17°C) | 1.5" | 0.0 | 0.1 |
| October | 61°F (16°C) | 46°F (8°C) | 54°F (12°C) | 3.5" | 0.4 | 0.0 |
| November | 52°F (11°C) | 40°F (5°C) | 46°F (8°C) | 5.6" | 4.3 | 0.0 |
| December | 47°F (8°C) | 37°F (3°C) | 42°F (5°C) | 4.5" | 7.9 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 4.9"
18.2 days with precipitation
February 3.2"
15.8 days with precipitation
March 3.7"
17.6 days with precipitation
April 2.8"
14.4 days with precipitation
May 1.9"
11.2 days with precipitation
June 1.5"
9.2 days with precipitation
July 0.6"
4.3 days with precipitation
August 0.9"
4.6 days with precipitation
September 1.5"
9.0 days with precipitation
October 3.5"
14.7 days with precipitation
November 5.6"
17.1 days with precipitation
December 4.5"
17.3 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 16
50% probability date
Last Spring Freeze
March 13
50% probability date
Growing Season
248 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,390
Higher = more heating needed
Cooling Degree Days
258
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
What Renton Muni's climate means for you
Renton Muni runs 54°F a year - peaking in August, coldest in December.
- Gardeners get about 248 frost-free days, with the last spring freeze near March 13 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,390 heating and 258 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: Renton Muni, WA
An annual average temperature of 54°F, ranging from a mean daily high of 61°F to a mean daily low of 46°F is what the NOAA 1991–2020 climate normals report for Renton Muni, Washington. August is typically the warmest month of the year, while December is the coldest. That baseline comes from station USW00094248 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Renton Muni sees about 34.7 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 248 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 13 and the first fall freeze near November 16. On the energy side, 4,390 heating degree days and 258 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Renton Muni scores 72/100 (Good), 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 August-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 Renton Muni, WA? ▼
The average annual temperature in Renton Muni, Washington is 54°F. The warmest month averages 78°F (25°C) and the coldest averages 37°F (3°C).
How much rain does Renton Muni get? ▼
Renton Muni receives 34.7 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Renton Muni? ▼
Renton Muni has a climate comfort score of 72/100 (Good), milder than 66% of U.S. cities in the PlainClimate database.
When is the growing season in Renton Muni? ▼
Renton Muni has approximately 248 frost-free days per year, with the last spring freeze around March 13 and the first fall freeze around November 16.
How much energy does heating and cooling require in Renton Muni? ▼
Renton Muni has 4,390 heating degree days and 258 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 Renton Muni climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00094248 near Renton Muni.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00094248. 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.