Climate Comfort Score
77/100
Good
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
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.
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
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Santa Ana John Wayne area.
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
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
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.
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 67°F (19°C) | 49°F (9°C) | 58°F (14°C) | 2.6" | 0.0 | 0.0 |
| February | 67°F (19°C) | 50°F (10°C) | 58°F (15°C) | 2.6" | 0.0 | 0.1 |
| March | 68°F (20°C) | 52°F (11°C) | 60°F (16°C) | 1.6" | 0.0 | 0.4 |
| April | 70°F (21°C) | 55°F (13°C) | 63°F (17°C) | 0.5" | 0.0 | 0.6 |
| May | 71°F (22°C) | 59°F (15°C) | 65°F (19°C) | 0.3" | 0.0 | 0.8 |
| June | 74°F (23°C) | 63°F (17°C) | 68°F (20°C) | 0.0" | 0.0 | 0.5 |
| July | 79°F (26°C) | 66°F (19°C) | 73°F (23°C) | 0.0" | 0.0 | 0.8 |
| August | 80°F (27°C) | 67°F (19°C) | 74°F (23°C) | 0.0" | 0.0 | 2.0 |
| September | 80°F (27°C) | 65°F (18°C) | 73°F (23°C) | 0.1" | 0.0 | 3.6 |
| October | 77°F (25°C) | 59°F (15°C) | 68°F (20°C) | 0.5" | 0.0 | 2.9 |
| November | 72°F (22°C) | 53°F (12°C) | 63°F (17°C) | 0.8" | 0.0 | 1.0 |
| December | 67°F (19°C) | 48°F (9°C) | 57°F (14°C) | 2.0" | 0.0 | 0.0 |
Average monthly rainfall
5.6 days with precipitation
7.4 days with precipitation
5.7 days with precipitation
3.7 days with precipitation
1.9 days with precipitation
0.7 days with precipitation
0.7 days with precipitation
0.1 days with precipitation
0.6 days with precipitation
3.3 days with precipitation
4.7 days with precipitation
6.9 days with precipitation
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
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.
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
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.
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00093184. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
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.