PlainClimate
NOAA 1991–2020 normals 65°F annual avg Public-domain federal data

Santa Ana John Wayne, CA Climate

Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score

65°F
Avg annual temp
77/100
Comfort score
11.2"
Annual precip

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Santa Ana John Wayne

Santa Ana John Wayne, California averages 65°F a year and scores 77/100 on the comfort index - good, milder than 72% of U.S. cities.

65°F
average temperature, NOAA 1991-2020 normal
77/100
comfort score, milder than 72% of U.S. cities
11.2"
precipitation, annual total

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

73°F

Avg Low

57°F

Annual Precip

11.2"

Comfort Score

77/100

Good

Climate Comfort Score

77/100

Good

Avg Annual Temperature

65°F

30-year mean (NOAA NCEI)

Annual Precipitation

11.2"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Santa Ana John Wayne) 77.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Santa Ana John Wayne area.

How Santa Ana John Wayne compares to every U.S. city

Santa Ana John Wayne's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

77 Top 28% higher than 72% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). This entry sits in this band. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

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 Santa Ana John Wayne

Methodology

The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Santa Ana John Wayne, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • 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
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 67°F (19°C) 49°F (9°C) 58°F (14°C)
February 67°F (19°C) 50°F (10°C) 58°F (15°C)
March 68°F (20°C) 52°F (11°C) 60°F (16°C)
April 70°F (21°C) 55°F (13°C) 63°F (17°C)
May 71°F (22°C) 59°F (15°C) 65°F (19°C)
June 74°F (23°C) 63°F (17°C) 68°F (20°C)
July 79°F (26°C) 66°F (19°C) 73°F (23°C)
August 80°F (27°C) 67°F (19°C) 74°F (23°C)
September 80°F (27°C) 65°F (18°C) 73°F (23°C)
October 77°F (25°C) 59°F (15°C) 68°F (20°C)
November 72°F (22°C) 53°F (12°C) 63°F (17°C)
December 67°F (19°C) 48°F (9°C) 57°F (14°C)

Monthly Precipitation

Average monthly rainfall

January 2.6"

5.6 days with precipitation

February 2.6"

7.4 days with precipitation

March 1.6"

5.7 days with precipitation

April 0.5"

3.7 days with precipitation

May 0.3"

1.9 days with precipitation

June 0.0"

0.7 days with precipitation

July 0.0"

0.7 days with precipitation

August 0.0"

0.1 days with precipitation

September 0.1"

0.6 days with precipitation

October 0.5"

3.3 days with precipitation

November 0.8"

4.7 days with precipitation

December 2.0"

6.9 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

N/A

50% probability date

Last Spring Freeze

N/A

50% probability date

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

1,092

Higher = more heating needed

Cooling Degree Days

1,075

Higher = more cooling needed

Warmest Month

August

Coldest Month

December

What Santa Ana John Wayne's climate means for you

Santa Ana John Wayne runs 65°F a year - peaking in August, coldest in December.

  • Energy bills track 1,092 heating and 1,075 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: Santa Ana John Wayne, CA

In Santa Ana John Wayne, California, the NOAA 1991–2020 climate normals put the annual average temperature at 65°F, ranging from a mean daily high of 73°F to a mean daily low of 57°F. August is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USW00093184, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Beyond temperature, Santa Ana John Wayne averages 11.2 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. Growing-season length varies with elevation and microclimate. Turning to energy use, 1,092 heating degree days and 1,075 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Santa Ana John Wayne scores 77/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, August-driven heat at the peak of summer, and December-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Santa Ana John Wayne, CA?
The average annual temperature in Santa Ana John Wayne, California is 65°F. The warmest month averages 80°F (27°C) and the coldest averages 48°F (9°C).
How much rain does Santa Ana John Wayne get?
Santa Ana John Wayne receives 11.2 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Santa Ana John Wayne?
Santa Ana John Wayne has a climate comfort score of 77/100 (Good), milder than 72% of U.S. cities in the PlainClimate database.
When is the growing season in Santa Ana John Wayne?
Growing season data is not available for Santa Ana John Wayne.
How much energy does heating and cooling require in Santa Ana John Wayne?
Santa Ana John Wayne has 1,092 heating degree days and 1,075 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 Santa Ana John Wayne climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00093184 near Santa Ana John Wayne.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00093184. For informational purposes only.

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.