Climate Comfort Score
87/100
Excellent
NOAA 1991–2020 normals 71°F annual avg Public-domain federal data
Stewart Mtn Dam, AZ Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 71°F
- Avg annual temp
- 87/100
- Comfort score
- 11.9"
- Annual precip
- 295d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Stewart Mtn Dam
Stewart Mtn Dam, Arizona averages 71°F a year and scores 87/100 on the comfort index - excellent, milder than 89% of U.S. cities.
- 71°F
- annual average temperature (NOAA normal)
- 87/100
- comfort score, milder than 89% of U.S. cities
- 11.9"
- annual precipitation
- 295 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
71°F (22°C)
Avg High
87°F
Avg Low
55°F
Annual Precip
11.9"
Annual Snow
0.0"
Comfort Score
87/100
Excellent
Avg Annual Temperature
71°F
30-year mean (NOAA NCEI)
Annual Precipitation
11.9"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Stewart Mtn Dam) 87.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Stewart Mtn Dam area.
How Stewart Mtn Dam compares to every U.S. city
Stewart Mtn Dam's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
87 Top 11% higher than 89% 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 Stewart Mtn Dam
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Stewart Mtn Dam, 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 69°F (20°C) | 39°F (4°C) | 54°F (12°C) | 1.8" | 0.0" | 5.1 | 0.0 |
| February | 72°F (22°C) | 41°F (5°C) | 56°F (13°C) | 1.4" | 0.0" | 3.0 | 0.0 |
| March | 78°F (26°C) | 46°F (8°C) | 62°F (17°C) | 1.6" | 0.0" | 0.3 | 1.8 |
| April | 85°F (30°C) | 50°F (10°C) | 68°F (20°C) | 0.5" | 0.0" | 0.0 | 9.4 |
| May | 93°F (34°C) | 59°F (15°C) | 76°F (25°C) | 0.3" | 0.0" | 0.0 | 23.0 |
| June | 103°F (39°C) | 68°F (20°C) | 85°F (30°C) | 0.1" | 0.0" | 0.0 | 29.3 |
| July | 105°F (41°C) | 76°F (25°C) | 91°F (33°C) | 1.0" | 0.0" | 0.0 | 30.8 |
| August | 104°F (40°C) | 76°F (24°C) | 90°F (32°C) | 1.4" | 0.0" | 0.0 | 30.6 |
| September | 100°F (38°C) | 69°F (21°C) | 84°F (29°C) | 0.7" | 0.0" | 0.0 | 27.8 |
| October | 90°F (32°C) | 56°F (14°C) | 73°F (23°C) | 0.7" | 0.0" | 0.0 | 16.7 |
| November | 78°F (26°C) | 45°F (7°C) | 62°F (16°C) | 0.9" | 0.0" | 1.4 | 2.2 |
| December | 68°F (20°C) | 38°F (3°C) | 53°F (12°C) | 1.6" | 0.0" | 7.6 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.8"
4.9 days with precipitation
February 1.4"
4.6 days with precipitation
March 1.6"
3.8 days with precipitation
April 0.5"
1.8 days with precipitation
May 0.3"
1.3 days with precipitation
June 0.1"
0.5 days with precipitation
July 1.0"
3.5 days with precipitation
August 1.4"
5.4 days with precipitation
September 0.7"
3.4 days with precipitation
October 0.7"
2.4 days with precipitation
November 0.9"
2.1 days with precipitation
December 1.6"
4.0 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
December 5
50% probability date
Last Spring Freeze
February 13
50% probability date
Growing Season
295 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,318
Higher = more heating needed
Cooling Degree Days
3,589
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Stewart Mtn Dam's climate means for you
Stewart Mtn Dam runs 71°F a year - peaking in July, coldest in December.
- Gardeners get about 295 frost-free days, with the last spring freeze near February 13 - plan the planting calendar around it, not the regional average.
- Energy bills track 1,318 heating and 3,589 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: Stewart Mtn Dam, AZ
Based on station USC00028214 feeding NOAA's 1991–2020 climate normals, Stewart Mtn Dam, Arizona averages 71°F a year, ranging from a mean daily high of 87°F to a mean daily low of 55°F. July 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.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Stewart Mtn Dam receives roughly 11.9 inches of precipitation each year, with negligible snowfall. The frost-free season averages 295 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near February 13 and the first fall freeze near December 5. For energy use, 1,318 heating degree days and 3,589 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Stewart Mtn Dam scores 87/100 (Excellent), 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 July-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 Stewart Mtn Dam, AZ? ▼
The average annual temperature in Stewart Mtn Dam, Arizona is 71°F. The warmest month averages 105°F (41°C) and the coldest averages 38°F (3°C).
How much rain does Stewart Mtn Dam get? ▼
Stewart Mtn Dam receives 11.9 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Stewart Mtn Dam? ▼
Stewart Mtn Dam has a climate comfort score of 87/100 (Excellent), milder than 89% of U.S. cities in the PlainClimate database.
When is the growing season in Stewart Mtn Dam? ▼
Stewart Mtn Dam has approximately 295 frost-free days per year, with the last spring freeze around February 13 and the first fall freeze around December 5.
How much energy does heating and cooling require in Stewart Mtn Dam? ▼
Stewart Mtn Dam has 1,318 heating degree days and 3,589 cooling degree days annually, a cooling-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 Stewart Mtn Dam climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00028214 near Stewart Mtn Dam.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00028214. 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.