Carson City climate — normals and trends
Carson City (United States) has a warm-summer mediterranean continental climate (Dsb) under the Köppen-Geiger classification. Its mean annual temperature is 8.8 °C and it receives 485 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 (20.9 °C on average) and the coldest is January (-0.9 °C). Rainfall peaks in January.
Carson City averages 135 frost days, 27 hot days (≥ 30 °C) and 73 rainy days per year.
Carson City has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 160 to 110 per year over the period.
The hottest day of the period reached 38.3 °C (on 10 July 2002) and the coldest -23.1 °C (on 7 February 1989).
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
Carson CityNevada
- coords
- 39.16°, -119.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.8°C
Average daily high
14.9°C
Average daily low
3.2°C
Annual rainfall
485mm
Sunshine / day
11.0h
Mean relative humidity
57%
Average peak wind
11.4km/h
Seasonal range
21.8°C
Frost days (< 0 °C)
135 d/yr
Hot days (≥ 30 °C)
27 d/yr
Rainy days (≥ 1 mm)
73 d/yr
Annual snowfall
204.8 cm
Average feels-like high
12.2 °C
Average feels-like low
0.3 °C
Average peak gust
38.1 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
19.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.65 · 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
38.3 °C
10 July 2002
Coldest day
-23.1 °C
7 February 1989
Wettest day
81 mm
31 December 2022
Windiest day
34.2 km/h
11 October 1962
Strongest gust
112.3 km/h
26 October 1950
Hottest feels-like
39.2 °C
10 July 2002
Coldest feels-like
-27.5 °C
7 February 1989
Snowiest day
42.8 cm
31 December 2022
Sunniest day
14.1 h
27 June 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 | 5.5 °C | +2.3 °C | 20 mm | -60 mm |
| Feb | 7.1 °C | +2.2 °C | 134 mm | +65 mm |
| Mar | 8.4 °C | +1.0 °C | 82 mm | +17 mm |
| Apr | 14.1 °C | +2.4 °C | 23 mm | -11 mm |
| May | 20.5 °C | +3.3 °C | 16 mm | -13 mm |
| Jun | 26.9 °C | +3.5 °C | 3 mm | -13 mm |
| Jul | 29.0 °C | 0.0 °C | 16 mm | +7 mm |
| Aug | 29.2 °C | +1.2 °C | 17 mm | +7 mm |
| Sep | 23.8 °C | +0.1 °C | 22 mm | +8 mm |
| Oct | 15.5 °C | -1.4 °C | 54 mm | +25 mm |
| Nov | 12.2 °C | +3.3 °C | 67 mm | +15 mm |
| Dec | 8.0 °C | +4.0 °C | 133 mm | +56 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 Carson City?
Carson City has a warm-summer mediterranean continental climate (Köppen Dsb). Over 1940-2025, the average annual temperature is 8.8 °C and it receives 485 mm of precipitation per year.
What is the hottest day ever recorded in Carson City?
The hottest day measured in Carson City between 1940 and 2025 was 10 July 2002, reaching 38.3 °C.
What is the coldest day in Carson City?
The coldest day measured in Carson City between 1940 and 2025 was 7 February 1989, at -23.1 °C.
Does it snow in Carson City?
Yes. Carson City gets on average 204.8 cm of snow per year and has around 135 frost days.
Has the climate of Carson City warmed?
Yes: Carson City warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Carson City?
The wettest day measured in Carson City between 1940 and 2025 was 31 December 2022, with 81 mm of rain in 24 hours.
What was the windiest day in Carson City?
The windiest day measured in Carson City between 1940 and 2025 was 11 October 1962, with winds reaching 34.2 km/h.
What is the warmest month in Carson City?
The warmest month in Carson City is July (20.9 °C on average); the coldest is January (-0.9 °C).
How much does it rain in Carson City?
Carson City receives on average 485 mm of precipitation per year, spread over about 73 rainy days.
Is it sunny in Carson City?
Carson City 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 Carson City?
The heaviest 24-hour snowfall measured in Carson City between 1940 and 2025 was 31 December 2022, with 42.8 cm.
Are there tropical nights in Carson City?
Yes: Carson City has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Carson City?
In Carson City, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 10 July 2002, and the lowest was -27.5 °C on 7 February 1989.
Compare Carson City with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Carson City