Novato climate — normals and trends
Novato (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 13.6 °C and it receives 553 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 (17.2 °C on average) and the coldest is January (9.2 °C). Rainfall peaks in January.
Novato averages 0 frost days, 3 hot days (≥ 30 °C) and 55 rainy days per year.
Novato has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.4 °C (on 1 September 2017) and the coldest -3.4 °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
NovatoCalifornia
- coords
- 38.11°, -122.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.6°C
Average daily high
18.3°C
Average daily low
9.9°C
Annual rainfall
553mm
Sunshine / day
10.4h
Mean relative humidity
74%
Average peak wind
17.8km/h
Seasonal range
8.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
55 d/yr
Annual snowfall
0.0 cm
Average feels-like high
17.0 °C
Average feels-like low
7.9 °C
Average peak gust
34.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.28 · 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
36.4 °C
1 September 2017
Coldest day
-3.4 °C
22 December 1990
Wettest day
96 mm
24 October 2021
Windiest day
55.3 km/h
3 December 1983
Strongest gust
111.2 km/h
23 December 1955
Hottest feels-like
38.4 °C
1 September 2017
Coldest feels-like
-8.1 °C
22 December 1990
Snowiest day
1.5 cm
4 January 1974
Sunniest day
14.3 h
5 July 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 | 14.9 °C | +2.0 °C | 17 mm | -93 mm |
| Feb | 15.0 °C | +0.6 °C | 152 mm | +49 mm |
| Mar | 15.2 °C | -0.3 °C | 73 mm | -11 mm |
| Apr | 17.3 °C | +0.1 °C | 8 mm | -31 mm |
| May | 20.7 °C | +1.4 °C | 2 mm | -15 mm |
| Jun | 20.1 °C | -1.4 °C | 0 mm | -4 mm |
| Jul | 19.7 °C | -2.7 °C | 0 mm | -0 mm |
| Aug | 23.4 °C | +0.7 °C | 0 mm | -1 mm |
| Sep | 22.8 °C | -0.2 °C | 3 mm | -1 mm |
| Oct | 20.4 °C | -0.4 °C | 34 mm | +7 mm |
| Nov | 16.7 °C | +0.3 °C | 75 mm | +9 mm |
| Dec | 13.1 °C | -0.1 °C | 90 mm | -7 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 Novato?
Novato has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 13.6 °C and it receives 553 mm of precipitation per year.
What is the hottest day ever recorded in Novato?
The hottest day measured in Novato between 1940 and 2025 was 1 September 2017, reaching 36.4 °C.
What is the coldest day in Novato?
The coldest day measured in Novato between 1940 and 2025 was 22 December 1990, at -3.4 °C.
Does it snow in Novato?
Almost never: Novato sees virtually no snow, with about 0 frost days per year.
Has the climate of Novato warmed?
Yes: Novato warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Novato?
The wettest day measured in Novato between 1940 and 2025 was 24 October 2021, with 96 mm of rain in 24 hours.
What was the windiest day in Novato?
The windiest day measured in Novato between 1940 and 2025 was 3 December 1983, with winds reaching 55.3 km/h.
What is the warmest month in Novato?
The warmest month in Novato is September (17.2 °C on average); the coldest is January (9.2 °C).
How much does it rain in Novato?
Novato receives on average 553 mm of precipitation per year, spread over about 55 rainy days.
Is it sunny in Novato?
Novato gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
What is the biggest single-day snowfall in Novato?
The heaviest 24-hour snowfall measured in Novato between 1940 and 2025 was 4 January 1974, with 1.5 cm.
Are there tropical nights in Novato?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Novato.
What was the most extreme apparent temperature in Novato?
In Novato, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 1 September 2017, and the lowest was -8.1 °C on 22 December 1990.
Compare Novato with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Novato