Prescott climate — normals and trends
Prescott (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 13.9 °C and it receives 446 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 (25.1 °C on average) and the coldest is January (3.7 °C). Rainfall peaks in August.
Prescott averages 72 frost days, 65 hot days (≥ 30 °C) and 71 rainy days per year.
Prescott has warmed by +3.0 °C between 1940 and 2025, or +0.36 °C per decade. This trend is statistically significant.
The number of frost days there went from about 99 to 45 per year over the period.
The hottest day of the period reached 40.3 °C (on 15 July 2023) and the coldest -21.1 °C (on 7 December 1978).
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
PrescottArizona
- coords
- 34.54°, -112.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.9°C
Average daily high
20.6°C
Average daily low
7.6°C
Annual rainfall
446mm
Sunshine / day
11.2h
Mean relative humidity
44%
Average peak wind
14.5km/h
Seasonal range
21.4°C
Frost days (< 0 °C)
72 d/yr
Hot days (≥ 30 °C)
65 d/yr
Rainy days (≥ 1 mm)
71 d/yr
Annual snowfall
40.9 cm
Average feels-like high
18.0 °C
Average feels-like low
4.9 °C
Average peak gust
36.7 km/h
Tropical nights (≥ 20 °C)
14 d/yr
Solar radiation
20.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.70 · 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
40.3 °C
15 July 2023
Coldest day
-21.1 °C
7 December 1978
Wettest day
77 mm
21 January 2010
Windiest day
42.9 km/h
20 May 1975
Strongest gust
113.8 km/h
7 December 2009
Hottest feels-like
38.6 °C
14 July 2003
Coldest feels-like
-25.5 °C
7 December 1978
Snowiest day
22.2 cm
21 January 1982
Sunniest day
14.3 h
24 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 | 10.8 °C | +0.5 °C | 8 mm | -35 mm |
| Feb | 16.7 °C | +4.7 °C | 18 mm | -24 mm |
| Mar | 15.5 °C | +0.8 °C | 64 mm | +19 mm |
| Apr | 20.1 °C | +0.9 °C | 12 mm | -12 mm |
| May | 24.7 °C | +0.5 °C | 50 mm | +37 mm |
| Jun | 31.1 °C | +1.1 °C | 31 mm | +23 mm |
| Jul | 32.2 °C | +0.8 °C | 27 mm | -34 mm |
| Aug | 32.9 °C | +3.1 °C | 40 mm | -32 mm |
| Sep | 27.2 °C | -0.3 °C | 79 mm | +38 mm |
| Oct | 22.6 °C | +0.7 °C | 47 mm | +14 mm |
| Nov | 17.9 °C | +2.4 °C | 70 mm | +42 mm |
| Dec | 15.9 °C | +5.0 °C | 23 mm | -15 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 Prescott?
Prescott has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 13.9 °C and it receives 446 mm of precipitation per year.
What is the hottest day ever recorded in Prescott?
The hottest day measured in Prescott between 1940 and 2025 was 15 July 2023, reaching 40.3 °C.
What is the coldest day in Prescott?
The coldest day measured in Prescott between 1940 and 2025 was 7 December 1978, at -21.1 °C.
Does it snow in Prescott?
Yes. Prescott gets on average 40.9 cm of snow per year and has around 72 frost days.
Has the climate of Prescott warmed?
Yes: Prescott warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Prescott?
The wettest day measured in Prescott between 1940 and 2025 was 21 January 2010, with 77 mm of rain in 24 hours.
What was the windiest day in Prescott?
The windiest day measured in Prescott between 1940 and 2025 was 20 May 1975, with winds reaching 42.9 km/h.
What is the warmest month in Prescott?
The warmest month in Prescott is July (25.1 °C on average); the coldest is January (3.7 °C).
How much does it rain in Prescott?
Prescott receives on average 446 mm of precipitation per year, spread over about 71 rainy days.
Is it sunny in Prescott?
Prescott 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 Prescott?
The heaviest 24-hour snowfall measured in Prescott between 1940 and 2025 was 21 January 1982, with 22.2 cm.
Are there tropical nights in Prescott?
Yes: Prescott has on average 14 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Prescott?
In Prescott, between 1940 and 2025, the highest apparent temperature reached 38.6 °C on 14 July 2003, and the lowest was -25.5 °C on 7 December 1978.
Compare Prescott with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Prescott