Gilbert climate — normals and trends
Gilbert (United States) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 22.3 °C and it receives 236 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 (34.1 °C on average) and the coldest is January (11.0 °C). Rainfall peaks in January.
Gilbert averages 5 frost days, 183 hot days (≥ 30 °C) and 33 rainy days per year.
Gilbert has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 10 to 0 per year over the period.
The hottest day of the period reached 48.2 °C (on 26 June 1990) and the coldest -5.6 °C (on 5 January 1971).
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
GilbertArizona
- coords
- 33.35°, -111.79°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.3°C
Average daily high
29.4°C
Average daily low
15.3°C
Annual rainfall
236mm
Sunshine / day
11.3h
Mean relative humidity
36%
Average peak wind
13.2km/h
Seasonal range
23.1°C
Frost days (< 0 °C)
5 d/yr
Hot days (≥ 30 °C)
183 d/yr
Rainy days (≥ 1 mm)
33 d/yr
Annual snowfall
0.0 cm
Average feels-like high
27.9 °C
Average feels-like low
13.1 °C
Average peak gust
28.7 km/h
Tropical nights (≥ 20 °C)
124 d/yr
Solar radiation
21.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.74 · 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
48.2 °C
26 June 1990
Coldest day
-5.6 °C
5 January 1971
Wettest day
82 mm
5 September 1970
Windiest day
42.0 km/h
25 April 1984
Strongest gust
95.8 km/h
21 January 2010
Hottest feels-like
48.5 °C
26 June 1990
Coldest feels-like
-11.0 °C
6 January 1971
Snowiest day
0.7 cm
3 February 1985
Sunniest day
14.2 h
23 June 2023
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 | 18.5 °C | +0.3 °C | 3 mm | -28 mm |
| Feb | 25.0 °C | +4.4 °C | 1 mm | -27 mm |
| Mar | 25.1 °C | +1.2 °C | 39 mm | +13 mm |
| Apr | 29.1 °C | +0.4 °C | 2 mm | -7 mm |
| May | 34.0 °C | +0.3 °C | 3 mm | +1 mm |
| Jun | 40.4 °C | +1.2 °C | 11 mm | +8 mm |
| Jul | 40.8 °C | +0.3 °C | 27 mm | +11 mm |
| Aug | 41.9 °C | +2.7 °C | 5 mm | -25 mm |
| Sep | 36.7 °C | 0.0 °C | 57 mm | +31 mm |
| Oct | 30.3 °C | -0.3 °C | 29 mm | +11 mm |
| Nov | 25.1 °C | +1.7 °C | 45 mm | +27 mm |
| Dec | 22.2 °C | +3.8 °C | 4 mm | -25 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 Gilbert?
Gilbert has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 22.3 °C and it receives 236 mm of precipitation per year.
What is the hottest day ever recorded in Gilbert?
The hottest day measured in Gilbert between 1940 and 2025 was 26 June 1990, reaching 48.2 °C.
What is the coldest day in Gilbert?
The coldest day measured in Gilbert between 1940 and 2025 was 5 January 1971, at -5.6 °C.
Does it snow in Gilbert?
Almost never: Gilbert sees virtually no snow, with about 5 frost days per year.
Has the climate of Gilbert warmed?
Yes: Gilbert warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gilbert?
The wettest day measured in Gilbert between 1940 and 2025 was 5 September 1970, with 82 mm of rain in 24 hours.
What was the windiest day in Gilbert?
The windiest day measured in Gilbert between 1940 and 2025 was 25 April 1984, with winds reaching 42.0 km/h.
What is the warmest month in Gilbert?
The warmest month in Gilbert is July (34.1 °C on average); the coldest is January (11.0 °C).
How much does it rain in Gilbert?
Gilbert receives on average 236 mm of precipitation per year, spread over about 33 rainy days.
Is it sunny in Gilbert?
Gilbert gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
What is the biggest single-day snowfall in Gilbert?
The heaviest 24-hour snowfall measured in Gilbert between 1940 and 2025 was 3 February 1985, with 0.7 cm.
Are there tropical nights in Gilbert?
Yes: Gilbert has on average 124 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Gilbert?
In Gilbert, between 1940 and 2025, the highest apparent temperature reached 48.5 °C on 26 June 1990, and the lowest was -11.0 °C on 6 January 1971.
Compare Gilbert with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Gilbert