Monterey climate — normals and trends
Monterey (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 12.5 °C and it receives 537 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 September (14.7 °C on average) and the coldest is March (11.0 °C). Rainfall peaks in January.
Monterey averages 0 frost days, 0 hot days (≥ 30 °C) and 59 rainy days per year.
No statistically significant temperature trend emerges for Monterey between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 28.8 °C (on 2 September 2017) and the coldest 1.4 °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
MontereyCalifornia
- coords
- 36.60°, -121.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.5°C
Average daily high
13.4°C
Average daily low
11.8°C
Annual rainfall
537mm
Sunshine / day
10.9h
Mean relative humidity
85%
Average peak wind
22.0km/h
Seasonal range
3.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
59 d/yr
Annual snowfall
0.0 cm
Average feels-like high
12.2 °C
Average feels-like low
9.2 °C
Average peak gust
29.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
19.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
28.8 °C
2 September 2017
Coldest day
1.4 °C
22 December 1990
Wettest day
84 mm
27 December 2004
Windiest day
75.9 km/h
14 February 1986
Strongest gust
121.0 km/h
14 February 1986
Hottest feels-like
29.2 °C
2 September 2017
Coldest feels-like
-5.2 °C
9 January 1949
Snowiest day
0.4 cm
8 December 1972
Sunniest day
14.1 h
19 June 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 | 12.4 °C | 0.0 °C | 7 mm | -97 mm |
| Feb | 12.4 °C | +0.1 °C | 109 mm | +9 mm |
| Mar | 11.8 °C | -0.1 °C | 102 mm | +14 mm |
| Apr | 11.7 °C | -0.2 °C | 20 mm | -23 mm |
| May | 12.2 °C | 0.0 °C | 12 mm | -4 mm |
| Jun | 12.2 °C | -1.0 °C | 1 mm | -4 mm |
| Jul | 12.6 °C | -1.4 °C | 3 mm | +2 mm |
| Aug | 14.8 °C | +0.2 °C | 6 mm | +4 mm |
| Sep | 16.5 °C | +0.9 °C | 6 mm | +1 mm |
| Oct | 16.0 °C | +0.6 °C | 28 mm | +6 mm |
| Nov | 15.0 °C | +0.9 °C | 106 mm | +45 mm |
| Dec | 14.7 °C | +1.8 °C | 57 mm | -35 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 Monterey?
Monterey has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 12.5 °C and it receives 537 mm of precipitation per year.
What is the hottest day ever recorded in Monterey?
The hottest day measured in Monterey between 1940 and 2025 was 2 September 2017, reaching 28.8 °C.
What is the coldest day in Monterey?
The coldest day measured in Monterey between 1940 and 2025 was 22 December 1990, at 1.4 °C.
Does it snow in Monterey?
Almost never: Monterey sees virtually no snow, with about 0 frost days per year.
Has the climate of Monterey warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Monterey.
What is the wettest day in Monterey?
The wettest day measured in Monterey between 1940 and 2025 was 27 December 2004, with 84 mm of rain in 24 hours.
What was the windiest day in Monterey?
The windiest day measured in Monterey between 1940 and 2025 was 14 February 1986, with winds reaching 75.9 km/h.
What is the warmest month in Monterey?
The warmest month in Monterey is September (14.7 °C on average); the coldest is March (11.0 °C).
How much does it rain in Monterey?
Monterey receives on average 537 mm of precipitation per year, spread over about 59 rainy days.
Is it sunny in Monterey?
Monterey gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
What is the biggest single-day snowfall in Monterey?
The heaviest 24-hour snowfall measured in Monterey between 1940 and 2025 was 8 December 1972, with 0.4 cm.
Are there tropical nights in Monterey?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Monterey.
What was the most extreme apparent temperature in Monterey?
In Monterey, between 1940 and 2025, the highest apparent temperature reached 29.2 °C on 2 September 2017, and the lowest was -5.2 °C on 9 January 1949.
Compare Monterey with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Monterey