Santa Maria climate — normals and trends
Santa Maria (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 14.2 °C and it receives 406 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (17.7 °C on average) and the coldest is January (10.9 °C). Rainfall peaks in January.
Santa Maria averages 0 frost days, 0 hot days (≥ 30 °C) and 39 rainy days per year.
Santa Maria has warmed by +0.7 °C between 1940 and 2025, or +0.08 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.9 °C (on 1 September 1955) and the coldest -1.8 °C (on 22 December 1990).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Santa MariaCalifornia
- coords
- 34.95°, -120.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.2°C
Average daily high
17.8°C
Average daily low
11.2°C
Annual rainfall
406mm
Sunshine / day
11.3h
Mean relative humidity
74%
Average peak wind
18.5km/h
Seasonal range
6.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
39 d/yr
Annual snowfall
0.1 cm
Average feels-like high
16.7 °C
Average feels-like low
9.4 °C
Average peak gust
33.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
20.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.17 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
33.9 °C
1 September 1955
Coldest day
-1.8 °C
22 December 1990
Wettest day
110 mm
5 December 1997
Windiest day
55.7 km/h
28 January 1983
Strongest gust
108.7 km/h
3 February 1998
Hottest feels-like
34.4 °C
1 September 1955
Coldest feels-like
-7.5 °C
22 December 1990
Snowiest day
3.2 cm
13 February 2001
Sunniest day
14.0 h
19 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 15.3 °C | +0.5 °C | 9 mm | -74 mm |
| Feb | 15.8 °C | +0.9 °C | 80 mm | -2 mm |
| Mar | 14.3 °C | -1.0 °C | 77 mm | +3 mm |
| Apr | 15.2 °C | -1.0 °C | 11 mm | -18 mm |
| May | 17.5 °C | +0.2 °C | 0 mm | -7 mm |
| Jun | 17.8 °C | -1.4 °C | 0 mm | -1 mm |
| Jul | 16.9 °C | -3.6 °C | 0 mm | -0 mm |
| Aug | 20.5 °C | -0.5 °C | 0 mm | -1 mm |
| Sep | 20.5 °C | -0.7 °C | 11 mm | +6 mm |
| Oct | 19.3 °C | -0.8 °C | 32 mm | +18 mm |
| Nov | 17.8 °C | +0.3 °C | 99 mm | +57 mm |
| Dec | 17.6 °C | +2.4 °C | 95 mm | +29 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Santa Maria?
Santa Maria has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 14.2 °C and it receives 406 mm of precipitation per year.
What is the hottest day ever recorded in Santa Maria?
The hottest day measured in Santa Maria between 1940 and 2025 was 1 September 1955, reaching 33.9 °C.
What is the coldest day in Santa Maria?
The coldest day measured in Santa Maria between 1940 and 2025 was 22 December 1990, at -1.8 °C.
Does it snow in Santa Maria?
Almost never: Santa Maria sees virtually no snow, with about 0 frost days per year.
Has the climate of Santa Maria warmed?
Yes: Santa Maria warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Santa Maria?
The wettest day measured in Santa Maria between 1940 and 2025 was 5 December 1997, with 110 mm of rain in 24 hours.
What was the windiest day in Santa Maria?
The windiest day measured in Santa Maria between 1940 and 2025 was 28 January 1983, with winds reaching 55.7 km/h.
What is the warmest month in Santa Maria?
The warmest month in Santa Maria is August (17.7 °C on average); the coldest is January (10.9 °C).
How much does it rain in Santa Maria?
Santa Maria receives on average 406 mm of precipitation per year, spread over about 39 rainy days.
Is it sunny in Santa Maria?
Santa Maria gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
What is the biggest single-day snowfall in Santa Maria?
The heaviest 24-hour snowfall measured in Santa Maria between 1940 and 2025 was 13 February 2001, with 3.2 cm.
Are there tropical nights in Santa Maria?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Santa Maria.
What was the most extreme apparent temperature in Santa Maria?
In Santa Maria, between 1940 and 2025, the highest apparent temperature reached 34.4 °C on 1 September 1955, and the lowest was -7.5 °C on 22 December 1990.
Compare Santa Maria with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Santa Maria