Climate Comfort Score
87/100
Excellent
NOAA 1991–2020 normals 65°F annual avg Public-domain federal data
San Carlos Reservoir, AZ Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 65°F
- Avg annual temp
- 87/100
- Comfort score
- 13.4"
- Annual precip
- 251d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for San Carlos Reservoir
San Carlos Reservoir, Arizona averages 65°F a year and scores 87/100 on the comfort index - excellent, milder than 89% of U.S. cities.
- 65°F
- average temperature, NOAA 1991-2020 normal
- 87/100
- comfort score, milder than 89% of U.S. cities
- 13.4"
- annual precipitation
- 251 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
65°F (18°C)
Avg High
80°F
Avg Low
50°F
Annual Precip
13.4"
Annual Snow
0.0"
Comfort Score
87/100
Excellent
Avg Annual Temperature
65°F
30-year mean (NOAA NCEI)
Annual Precipitation
13.4"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (San Carlos Reservoir) 87.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the San Carlos Reservoir area.
How San Carlos Reservoir compares to every U.S. city
San Carlos Reservoir'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 San Carlos Reservoir
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for San Carlos Reservoir captures average conditions across the spread shown, the most recent decade is 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 | 59°F (15°C) | 31°F (0°C) | 45°F (7°C) | 1.9" | 0.0" | 13.8 | 0.0 |
| February | 63°F (17°C) | 35°F (2°C) | 49°F (10°C) | 1.7" | 0.0" | 6.7 | 0.0 |
| March | 70°F (21°C) | 39°F (4°C) | 55°F (13°C) | 1.2" | 0.0" | 2.2 | 0.1 |
| April | 78°F (26°C) | 47°F (8°C) | 63°F (17°C) | 0.4" | 0.0" | 0.5 | 3.8 |
| May | 88°F (31°C) | 56°F (13°C) | 72°F (22°C) | 0.5" | 0.0" | 0.0 | 17.2 |
| June | 98°F (37°C) | 65°F (18°C) | 81°F (27°C) | 0.1" | 0.0" | 0.0 | 28.4 |
| July | 99°F (37°C) | 71°F (22°C) | 85°F (29°C) | 1.6" | 0.0" | 0.0 | 28.8 |
| August | 97°F (36°C) | 70°F (21°C) | 84°F (29°C) | 1.8" | 0.0" | 0.0 | 28.3 |
| September | 93°F (34°C) | 63°F (17°C) | 78°F (25°C) | 1.1" | 0.0" | 0.0 | 22.1 |
| October | 82°F (28°C) | 51°F (11°C) | 67°F (19°C) | 0.8" | 0.0" | 0.0 | 8.7 |
| November | 69°F (20°C) | 39°F (4°C) | 54°F (12°C) | 0.9" | 0.0" | 3.5 | 0.0 |
| December | 59°F (15°C) | 31°F (0°C) | 45°F (7°C) | 1.4" | 0.0" | 14.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.9"
4.9 days with precipitation
February 1.7"
5.1 days with precipitation
March 1.2"
4.1 days with precipitation
April 0.4"
1.8 days with precipitation
May 0.5"
2.1 days with precipitation
June 0.1"
1.1 days with precipitation
July 1.6"
6.2 days with precipitation
August 1.8"
7.0 days with precipitation
September 1.1"
4.6 days with precipitation
October 0.8"
3.2 days with precipitation
November 0.9"
3.2 days with precipitation
December 1.4"
5.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 19
50% probability date
Last Spring Freeze
March 13
50% probability date
Growing Season
251 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,566
Higher = more heating needed
Cooling Degree Days
2,479
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What San Carlos Reservoir's climate means for you
San Carlos Reservoir runs 65°F a year - peaking in July, coldest in December.
- Gardeners get about 251 frost-free days, with the last spring freeze near March 13 - plan the planting calendar around it, not the regional average.
- Energy bills track 2,566 heating and 2,479 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: San Carlos Reservoir, AZ
In San Carlos Reservoir, Arizona, the NOAA 1991–2020 climate normals put the annual average temperature at 65°F, ranging from a mean daily high of 80°F to a mean daily low of 50°F. July is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USC00027480, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. San Carlos Reservoir sees about 13.4 inches of precipitation a year, with negligible snowfall. The frost-free season averages 251 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 19. On the energy side, 2,566 heating degree days and 2,479 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, San Carlos Reservoir scores 87/100 (Excellent), 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, July-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 San Carlos Reservoir, AZ? ▼
The average annual temperature in San Carlos Reservoir, Arizona is 65°F. The warmest month averages 99°F (37°C) and the coldest averages 31°F (0°C).
How much rain does San Carlos Reservoir get? ▼
San Carlos Reservoir receives 13.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for San Carlos Reservoir? ▼
San Carlos Reservoir 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 San Carlos Reservoir? ▼
San Carlos Reservoir has approximately 251 frost-free days per year, with the last spring freeze around March 13 and the first fall freeze around November 19.
How much energy does heating and cooling require in San Carlos Reservoir? ▼
San Carlos Reservoir has 2,566 heating degree days and 2,479 cooling degree days annually, a fairly balanced heating/cooling split. 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 San Carlos Reservoir climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00027480 near San Carlos Reservoir.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00027480. 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.