Carlsbad climate — normals and trends
Carlsbad (United States) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 17.7 °C and it receives 296 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 July (28.2 °C on average) and the coldest is January (6.2 °C). Rainfall peaks in September.
Carlsbad averages 44 frost days, 128 hot days (≥ 30 °C) and 48 rainy days per year.
Carlsbad has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 53 to 35 per year over the period.
The hottest day of the period reached 45.6 °C (on 27 June 1994) and the coldest -19.6 °C (on 4 January 1947).
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
CarlsbadNew Mexico
- coords
- 32.42°, -104.23°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.7°C
Average daily high
24.7°C
Average daily low
11.0°C
Annual rainfall
296mm
Sunshine / day
11.0h
Mean relative humidity
45%
Average peak wind
22.1km/h
Seasonal range
22.0°C
Frost days (< 0 °C)
44 d/yr
Hot days (≥ 30 °C)
128 d/yr
Rainy days (≥ 1 mm)
48 d/yr
Annual snowfall
13.1 cm
Average feels-like high
22.1 °C
Average feels-like low
8.3 °C
Average peak gust
37.9 km/h
Tropical nights (≥ 20 °C)
74 d/yr
Solar radiation
20.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
45.6 °C
27 June 1994
Coldest day
-19.6 °C
4 January 1947
Wettest day
77 mm
6 October 1981
Windiest day
64.6 km/h
22 February 1977
Strongest gust
104.8 km/h
22 February 1977
Hottest feels-like
45.7 °C
27 June 1994
Coldest feels-like
-24.9 °C
11 January 1962
Snowiest day
15.6 cm
29 January 1999
Sunniest day
14.0 h
7 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 | 10.7 °C | -2.7 °C | 2 mm | -13 mm |
| Feb | 19.5 °C | +3.1 °C | 0 mm | -15 mm |
| Mar | 23.8 °C | +3.1 °C | 1 mm | -13 mm |
| Apr | 27.5 °C | +1.9 °C | 32 mm | +15 mm |
| May | 30.8 °C | +0.6 °C | 28 mm | -0 mm |
| Jun | 35.4 °C | +0.7 °C | 38 mm | +15 mm |
| Jul | 34.4 °C | -0.1 °C | 43 mm | +13 mm |
| Aug | 36.3 °C | +2.7 °C | 17 mm | -19 mm |
| Sep | 31.5 °C | +1.6 °C | 20 mm | -27 mm |
| Oct | 28.2 °C | +3.3 °C | 9 mm | -27 mm |
| Nov | 23.2 °C | +4.9 °C | 8 mm | -9 mm |
| Dec | 20.0 °C | +5.7 °C | 9 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 Carlsbad?
Carlsbad has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 17.7 °C and it receives 296 mm of precipitation per year.
What is the hottest day ever recorded in Carlsbad?
The hottest day measured in Carlsbad between 1940 and 2025 was 27 June 1994, reaching 45.6 °C.
What is the coldest day in Carlsbad?
The coldest day measured in Carlsbad between 1940 and 2025 was 4 January 1947, at -19.6 °C.
Does it snow in Carlsbad?
Yes. Carlsbad gets on average 13.1 cm of snow per year and has around 44 frost days.
Has the climate of Carlsbad warmed?
Yes: Carlsbad warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Carlsbad?
The wettest day measured in Carlsbad between 1940 and 2025 was 6 October 1981, with 77 mm of rain in 24 hours.
What was the windiest day in Carlsbad?
The windiest day measured in Carlsbad between 1940 and 2025 was 22 February 1977, with winds reaching 64.6 km/h.
What is the warmest month in Carlsbad?
The warmest month in Carlsbad is July (28.2 °C on average); the coldest is January (6.2 °C).
How much does it rain in Carlsbad?
Carlsbad receives on average 296 mm of precipitation per year, spread over about 48 rainy days.
Is it sunny in Carlsbad?
Carlsbad gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
What is the biggest single-day snowfall in Carlsbad?
The heaviest 24-hour snowfall measured in Carlsbad between 1940 and 2025 was 29 January 1999, with 15.6 cm.
Are there tropical nights in Carlsbad?
Yes: Carlsbad has on average 74 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Carlsbad?
In Carlsbad, between 1940 and 2025, the highest apparent temperature reached 45.7 °C on 27 June 1994, and the lowest was -24.9 °C on 11 January 1962.
Compare Carlsbad with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Carlsbad