Shafter climate — normals and trends
Shafter (United States) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 18.6 °C and it receives 243 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 (29.0 °C on average) and the coldest is January (9.6 °C). Rainfall peaks in March.
Shafter averages 4 frost days, 125 hot days (≥ 30 °C) and 39 rainy days per year.
Shafter 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 7 to 1 per year over the period.
The hottest day of the period reached 46.0 °C (on 6 September 2022) and the coldest -7.0 °C (on 23 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
ShafterCalifornia
- coords
- 35.50°, -119.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.6°C
Average daily high
25.1°C
Average daily low
12.9°C
Annual rainfall
243mm
Sunshine / day
11.2h
Mean relative humidity
52%
Average peak wind
10.2km/h
Seasonal range
19.4°C
Frost days (< 0 °C)
4 d/yr
Hot days (≥ 30 °C)
125 d/yr
Rainy days (≥ 1 mm)
39 d/yr
Annual snowfall
0.2 cm
Average feels-like high
24.5 °C
Average feels-like low
11.3 °C
Average peak gust
24.9 km/h
Tropical nights (≥ 20 °C)
70 d/yr
Solar radiation
20.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.51 · 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
46.0 °C
6 September 2022
Coldest day
-7.0 °C
23 December 1990
Wettest day
60 mm
5 December 1966
Windiest day
34.4 km/h
28 February 1941
Strongest gust
81.7 km/h
4 January 1995
Hottest feels-like
49.8 °C
4 July 1991
Coldest feels-like
-11.1 °C
23 December 1990
Snowiest day
3.1 cm
25 January 1999
Sunniest day
14.0 h
23 May 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 | 16.6 °C | +1.6 °C | 11 mm | -30 mm |
| Feb | 19.5 °C | +2.3 °C | 31 mm | -13 mm |
| Mar | 19.5 °C | -0.1 °C | 77 mm | +31 mm |
| Apr | 24.6 °C | +1.1 °C | 21 mm | -5 mm |
| May | 30.3 °C | +2.0 °C | 4 mm | -4 mm |
| Jun | 35.1 °C | +2.1 °C | 0 mm | -2 mm |
| Jul | 36.8 °C | +0.2 °C | 0 mm | -1 mm |
| Aug | 37.5 °C | +1.9 °C | 2 mm | +1 mm |
| Sep | 33.3 °C | +1.0 °C | 10 mm | +6 mm |
| Oct | 25.3 °C | -0.9 °C | 35 mm | +24 mm |
| Nov | 19.8 °C | +0.5 °C | 89 mm | +65 mm |
| Dec | 15.5 °C | +0.4 °C | 59 mm | +23 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 Shafter?
Shafter has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 18.6 °C and it receives 243 mm of precipitation per year.
What is the hottest day ever recorded in Shafter?
The hottest day measured in Shafter between 1940 and 2025 was 6 September 2022, reaching 46.0 °C.
What is the coldest day in Shafter?
The coldest day measured in Shafter between 1940 and 2025 was 23 December 1990, at -7.0 °C.
Does it snow in Shafter?
Almost never: Shafter sees virtually no snow, with about 4 frost days per year.
Has the climate of Shafter warmed?
Yes: Shafter warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Shafter?
The wettest day measured in Shafter between 1940 and 2025 was 5 December 1966, with 60 mm of rain in 24 hours.
What was the windiest day in Shafter?
The windiest day measured in Shafter between 1940 and 2025 was 28 February 1941, with winds reaching 34.4 km/h.
What is the warmest month in Shafter?
The warmest month in Shafter is July (29.0 °C on average); the coldest is January (9.6 °C).
How much does it rain in Shafter?
Shafter receives on average 243 mm of precipitation per year, spread over about 39 rainy days.
Is it sunny in Shafter?
Shafter 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 Shafter?
The heaviest 24-hour snowfall measured in Shafter between 1940 and 2025 was 25 January 1999, with 3.1 cm.
Are there tropical nights in Shafter?
Yes: Shafter has on average 70 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Shafter?
In Shafter, between 1940 and 2025, the highest apparent temperature reached 49.8 °C on 4 July 1991, and the lowest was -11.1 °C on 23 December 1990.
Compare Shafter with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Shafter