Ramona climate — normals and trends
Ramona (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 15.9 °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 (23.5 °C on average) and the coldest is January (9.8 °C). Rainfall peaks in February.
Ramona averages 5 frost days, 60 hot days (≥ 30 °C) and 47 rainy days per year.
Ramona has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 9 to 1 per year over the period.
The hottest day of the period reached 42.7 °C (on 5 September 2020) and the coldest -7.5 °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
RamonaCalifornia
- coords
- 33.04°, -116.87°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.9°C
Average daily high
22.5°C
Average daily low
10.5°C
Annual rainfall
406mm
Sunshine / day
11.2h
Mean relative humidity
59%
Average peak wind
12.9km/h
Seasonal range
13.7°C
Frost days (< 0 °C)
5 d/yr
Hot days (≥ 30 °C)
60 d/yr
Rainy days (≥ 1 mm)
47 d/yr
Annual snowfall
2.4 cm
Average feels-like high
21.6 °C
Average feels-like low
9.0 °C
Average peak gust
35.0 km/h
Tropical nights (≥ 20 °C)
17 d/yr
Solar radiation
20.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.53 · 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
42.7 °C
5 September 2020
Coldest day
-7.5 °C
22 December 1990
Wettest day
103 mm
5 March 1995
Windiest day
43.8 km/h
30 November 1982
Strongest gust
106.9 km/h
30 November 1982
Hottest feels-like
43.3 °C
22 July 2006
Coldest feels-like
-11.4 °C
12 January 1949
Snowiest day
11.5 cm
29 January 1957
Sunniest day
13.9 h
10 July 2025
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 | 17.2 °C | +1.1 °C | 18 mm | -54 mm |
| Feb | 19.5 °C | +3.0 °C | 58 mm | -17 mm |
| Mar | 16.5 °C | -0.8 °C | 114 mm | +43 mm |
| Apr | 19.5 °C | -0.2 °C | 24 mm | -10 mm |
| May | 24.0 °C | +1.5 °C | 15 mm | +2 mm |
| Jun | 27.8 °C | +1.0 °C | 4 mm | +1 mm |
| Jul | 29.0 °C | -1.3 °C | 0 mm | -6 mm |
| Aug | 31.1 °C | +0.7 °C | 18 mm | +8 mm |
| Sep | 27.6 °C | -1.3 °C | 28 mm | +19 mm |
| Oct | 25.3 °C | +0.7 °C | 18 mm | -0 mm |
| Nov | 21.8 °C | +1.8 °C | 69 mm | +31 mm |
| Dec | 21.8 °C | +5.2 °C | 37 mm | -20 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 Ramona?
Ramona has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 15.9 °C and it receives 406 mm of precipitation per year.
What is the hottest day ever recorded in Ramona?
The hottest day measured in Ramona between 1940 and 2025 was 5 September 2020, reaching 42.7 °C.
What is the coldest day in Ramona?
The coldest day measured in Ramona between 1940 and 2025 was 22 December 1990, at -7.5 °C.
Does it snow in Ramona?
Yes. Ramona gets on average 2.4 cm of snow per year and has around 5 frost days.
Has the climate of Ramona warmed?
Yes: Ramona warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ramona?
The wettest day measured in Ramona between 1940 and 2025 was 5 March 1995, with 103 mm of rain in 24 hours.
What was the windiest day in Ramona?
The windiest day measured in Ramona between 1940 and 2025 was 30 November 1982, with winds reaching 43.8 km/h.
What is the warmest month in Ramona?
The warmest month in Ramona is August (23.5 °C on average); the coldest is January (9.8 °C).
How much does it rain in Ramona?
Ramona receives on average 406 mm of precipitation per year, spread over about 47 rainy days.
Is it sunny in Ramona?
Ramona gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ramona?
The heaviest 24-hour snowfall measured in Ramona between 1940 and 2025 was 29 January 1957, with 11.5 cm.
Are there tropical nights in Ramona?
Yes: Ramona has on average 17 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ramona?
In Ramona, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 22 July 2006, and the lowest was -11.4 °C on 12 January 1949.
Compare Ramona with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ramona