Purísima de Bustos climate — normals and trends

Q: What is the climate of Purísima de Bustos?

Purísima de Bustos has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 18.6 °C and it receives 593 mm of precipitation per year.

Q: What is the hottest day ever recorded in Purísima de Bustos?

The hottest day measured in Purísima de Bustos between 1940 and 2025 was 8 May 1998, reaching 36.7 °C.

Q: What is the coldest day in Purísima de Bustos?

The coldest day measured in Purísima de Bustos between 1940 and 2025 was 14 December 1997, at -4.0 °C.

Q: Does it snow in Purísima de Bustos?

Almost never: Purísima de Bustos sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Purísima de Bustos warmed?

Yes: Purísima de Bustos warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Purísima de Bustos?

The wettest day measured in Purísima de Bustos between 1940 and 2025 was 13 June 2018, with 62 mm of rain in 24 hours.

Q: What was the windiest day in Purísima de Bustos?

The windiest day measured in Purísima de Bustos between 1940 and 2025 was 4 March 1983, with winds reaching 46.7 km/h.

Q: What is the warmest month in Purísima de Bustos?

The warmest month in Purísima de Bustos is May (22.6 °C on average); the coldest is January (14.4 °C).

Q: How much does it rain in Purísima de Bustos?

Purísima de Bustos receives on average 593 mm of precipitation per year, spread over about 88 rainy days.

Q: Is it sunny in Purísima de Bustos?

Purísima de Bustos gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.

Purísima de Bustos (Mexico) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 18.6 °C and it receives 593 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 May (22.6 °C on average) and the coldest is January (14.4 °C). Rainfall peaks in July.

Purísima de Bustos averages 0 frost days, 41 hot days (≥ 30 °C) and 88 rainy days per year.

Purísima de Bustos has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.7 °C (on 8 May 1998) and the coldest -4.0 °C (on 14 December 1997).

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

Purísima de BustosGuanajuato

coords: 21.03°, -101.88°
period: 1940–2025 · 86 yrs

BShHot semi-aridWarmest monthMayColdest monthJanuaryWettest monthJulyDriest monthMarch

Mean daily temperature

18.6°C

Average daily high

25.6°C

Average daily low

12.2°C

Annual rainfall

593mm

Sunshine / day

11.2h

Mean relative humidity

53%

Average peak wind

15.3km/h

Seasonal range

8.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

41 d/yr

Rainy days (≥ 1 mm)

88 d/yr

Annual snowfall

0.1 cm

Average feels-like high

24.4 °C

Average feels-like low

10.8 °C

Average peak gust

32.6 km/h

Tropical nights (≥ 20 °C)

0 d/yr

Solar radiation

22.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.67 · p = < 0.001

19402025

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

36.7 °C

8 May 1998

Coldest day

-4.0 °C

14 December 1997

Wettest day

62 mm

13 June 2018

Windiest day

46.7 km/h

4 March 1983

Strongest gust

87.5 km/h

4 March 1983

Hottest feels-like

37.4 °C

21 May 2024

Coldest feels-like

-8.4 °C

14 December 1997

Snowiest day

2.5 cm

11 January 1967

Sunniest day

13.1 h

29 June 1942

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	35.2 °C16 May 2025	4.1 °C22 January 2025	19.9 °C	793 mm	63	0
2024	36.6 °C24 May 2024	3.0 °C27 December 2024	20.6 °C	705 mm	83	0
2023	36.5 °C13 June 2023	3.7 °C28 December 2023	20.2 °C	509 mm	86	0
2022	34.5 °C10 May 2022	5.9 °C26 December 2022	19.6 °C	534 mm	62	0
2021	33.5 °C27 May 2021	2.5 °C2 January 2021	19.2 °C	842 mm	45	0
2020	34.5 °C21 April 2020	2.4 °C5 January 2020	19.9 °C	521 mm	82	0
2019	33.2 °C20 May 2019	3.3 °C28 January 2019	19.9 °C	629 mm	76	0
2018	35.7 °C31 May 2018	1.0 °C15 December 2018	18.9 °C	981 mm	47	0
2017	34.7 °C22 May 2017	2.1 °C10 December 2017	19.3 °C	654 mm	59	0
2016	35.2 °C25 May 2016	1.4 °C10 March 2016	19.0 °C	640 mm	50	0
2015	32.4 °C18 May 2015	3.9 °C15 December 2015	18.8 °C	918 mm	16	0
2014	32.3 °C12 May 2014	2.5 °C16 January 2014	18.8 °C	705 mm	36	0
2013	34.9 °C6 June 2013	1.4 °C3 March 2013	19.2 °C	803 mm	48	0
2012	34.9 °C29 May 2012	3.8 °C27 January 2012	19.4 °C	559 mm	55	0
2011	35.7 °C24 May 2011	1.8 °C28 November 2011	20.0 °C	468 mm	91	0
2010	34.8 °C6 May 2010	1.6 °C16 January 2010	18.9 °C	575 mm	55	0
2009	34.9 °C13 June 2009	3.1 °C6 February 2009	19.6 °C	562 mm	77	0
2008	34.4 °C11 May 2008	1.5 °C3 January 2008	18.8 °C	747 mm	49	0
2007	33.6 °C2 June 2007	4.5 °C10 January 2007	19.0 °C	632 mm	49	0
2006	34.2 °C12 June 2006	-1.3 °C18 January 2006	19.1 °C	664 mm	70	2
2005	35.5 °C7 June 2005	3.7 °C17 January 2005	19.5 °C	434 mm	80	0
2004	32.4 °C27 May 2004	2.1 °C27 December 2004	18.2 °C	771 mm	23	0
2003	35.4 °C8 May 2003	1.3 °C20 December 2003	19.2 °C	678 mm	57	0
2002	34.3 °C29 April 2002	2.1 °C14 January 2002	19.2 °C	655 mm	64	0
2001	34.1 °C17 April 2001	4.5 °C26 December 2001	19.0 °C	584 mm	48	0
2000	34.8 °C20 April 2000	3.0 °C4 February 2000	19.3 °C	464 mm	68	0
1999	34.6 °C1 June 1999	2.1 °C21 December 1999	19.0 °C	486 mm	58	0
1998	36.7 °C8 May 1998	0.7 °C3 February 1998	19.7 °C	579 mm	91	0
1997	33.2 °C4 June 1997	-4.0 °C14 December 1997	18.7 °C	586 mm	32	2
1996	34.7 °C29 May 1996	1.9 °C3 January 1996	19.1 °C	709 mm	34	0
1995	34.7 °C14 May 1995	3.6 °C26 November 1995	19.4 °C	624 mm	39	0
1994	33.9 °C1 May 1994	3.3 °C5 January 1994	19.4 °C	733 mm	49	0
1993	34.0 °C5 June 1993	4.8 °C12 February 1993	18.8 °C	630 mm	29	0
1992	33.5 °C26 June 1992	2.3 °C5 February 1992	17.7 °C	921 mm	19	0
1991	34.3 °C21 May 1991	4.0 °C16 January 1991	18.7 °C	813 mm	58	0
1990	33.8 °C1 June 1990	4.3 °C23 February 1990	18.6 °C	827 mm	27	0
1989	34.3 °C19 May 1989	1.9 °C24 December 1989	19.0 °C	518 mm	42	0
1988	34.1 °C8 May 1988	2.0 °C29 January 1988	19.0 °C	582 mm	56	0
1987	32.4 °C28 May 1987	2.3 °C23 January 1987	18.7 °C	528 mm	32	0
1986	35.2 °C12 May 1986	1.9 °C14 January 1986	18.4 °C	729 mm	33	0
1985	33.7 °C13 May 1985	1.4 °C6 January 1985	18.1 °C	731 mm	20	0
1984	32.4 °C28 April 1984	4.3 °C1 January 1984	18.3 °C	689 mm	29	0
1983	35.9 °C1 May 1983	2.6 °C23 January 1983	18.4 °C	663 mm	50	0
1982	34.7 °C4 June 1982	2.9 °C20 December 1982	19.4 °C	542 mm	73	0
1981	33.8 °C9 June 1981	0.7 °C29 January 1981	18.4 °C	712 mm	33	0
1980	34.7 °C2 June 1980	-2.1 °C27 January 1980	18.7 °C	635 mm	57	1
1979	33.8 °C23 June 1979	3.3 °C25 November 1979	19.0 °C	463 mm	61	0
1978	33.8 °C19 April 1978	1.5 °C13 February 1978	18.6 °C	600 mm	39	0
1977	32.9 °C21 May 1977	2.4 °C22 December 1977	18.4 °C	622 mm	23	0
1976	32.7 °C25 May 1976	-0.7 °C25 February 1976	18.1 °C	592 mm	20	1
1975	32.9 °C19 April 1975	1.0 °C29 December 1975	18.1 °C	619 mm	35	0
1974	33.0 °C16 May 1974	2.2 °C26 November 1974	18.1 °C	520 mm	28	0
1973	33.8 °C26 May 1973	1.0 °C30 January 1973	18.1 °C	663 mm	32	0
1972	32.7 °C24 May 1972	2.5 °C22 December 1972	18.5 °C	392 mm	41	0
1971	33.0 °C30 April 1971	3.5 °C25 December 1971	18.0 °C	596 mm	27	0
1970	32.3 °C25 April 1970	2.2 °C4 February 1970	18.2 °C	477 mm	40	0
1969	34.0 °C14 June 1969	3.2 °C22 November 1969	18.7 °C	315 mm	38	0
1968	31.7 °C8 June 1968	3.6 °C7 February 1968	17.8 °C	461 mm	17	0
1967	33.9 °C8 May 1967	1.1 °C11 January 1967	17.7 °C	645 mm	26	0
1966	33.2 °C6 June 1966	-0.4 °C30 January 1966	17.5 °C	515 mm	23	1
1965	33.0 °C25 May 1965	2.9 °C18 January 1965	17.9 °C	587 mm	34	0
1964	33.3 °C1 May 1964	2.3 °C1 January 1964	18.1 °C	484 mm	28	0
1963	32.8 °C23 April 1963	0.4 °C24 December 1963	17.8 °C	567 mm	29	0
1962	32.8 °C7 June 1962	3.1 °C6 January 1962	18.5 °C	395 mm	33	0
1961	32.8 °C14 May 1961	2.9 °C12 February 1961	18.1 °C	449 mm	35	0
1960	32.5 °C17 June 1960	-1.5 °C13 February 1960	18.3 °C	409 mm	37	2
1959	30.8 °C28 April 1959	3.3 °C11 January 1959	17.0 °C	756 mm	6	0
1958	33.1 °C11 June 1958	1.5 °C25 January 1958	17.6 °C	692 mm	26	0
1957	32.8 °C24 May 1957	2.0 °C12 December 1957	19.1 °C	231 mm	55	0
1956	32.0 °C11 May 1956	-0.8 °C13 January 1956	18.1 °C	362 mm	31	1
1955	34.0 °C24 May 1955	-1.9 °C24 January 1955	18.2 °C	443 mm	39	1
1954	33.4 °C3 June 1954	2.6 °C21 December 1954	18.3 °C	386 mm	29	0
1953	33.1 °C21 May 1953	1.2 °C12 November 1953	17.9 °C	532 mm	39	0
1952	32.4 °C24 May 1952	2.4 °C5 February 1952	18.1 °C	418 mm	21	0
1951	31.6 °C17 May 1951	2.1 °C3 February 1951	18.7 °C	472 mm	22	0
1950	32.1 °C4 May 1950	2.4 °C19 December 1950	18.1 °C	391 mm	27	0
1949	33.1 °C23 May 1949	3.7 °C5 November 1949	18.3 °C	472 mm	15	0
1948	32.8 °C2 May 1948	2.1 °C25 January 1948	17.5 °C	667 mm	17	0
1947	30.5 °C6 April 1947	0.9 °C2 January 1947	17.2 °C	655 mm	10	0
1946	34.0 °C20 May 1946	3.0 °C8 January 1946	18.2 °C	462 mm	30	0
1945	31.8 °C3 June 1945	2.8 °C5 December 1945	18.1 °C	443 mm	30	0
1944	32.2 °C2 June 1944	2.5 °C7 December 1944	17.3 °C	606 mm	25	0
1943	32.5 °C16 May 1943	2.9 °C1 January 1943	17.1 °C	514 mm	16	0
1942	31.7 °C12 June 1942	1.4 °C29 December 1942	17.5 °C	464 mm	18	0
1941	31.4 °C9 May 1941	0.7 °C9 February 1941	16.9 °C	769 mm	4	0
1940	31.4 °C1 May 1940	-0.3 °C18 February 1940	17.2 °C	585 mm	14	1

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?

Year

Across the whole year

Average daily high

27.2 °C

+1.6 °C

Hot days (≥ 30 °C)

63 d/yr

+22

Frost days (< 0 °C)

0 d/yr

Annual rainfall

793 mm

+200 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	24.4 °C	+2.5 °C	6 mm	-12 mm
Feb	27.5 °C	+3.5 °C	3 mm	-8 mm
Mar	29.6 °C	+2.8 °C	0 mm	-8 mm
Apr	30.7 °C	+1.8 °C	0 mm	-11 mm
May	31.5 °C	+1.6 °C	50 mm	+20 mm
Jun	26.4 °C	-1.4 °C	211 mm	+100 mm
Jul	25.4 °C	0.0 °C	163 mm	+32 mm
Aug	26.2 °C	+0.6 °C	195 mm	+77 mm
Sep	26.4 °C	+1.4 °C	121 mm	+28 mm
Oct	27.4 °C	+2.4 °C	32 mm	-8 mm
Nov	26.8 °C	+2.7 °C	1 mm	-11 mm
Dec	24.5 °C	+2.2 °C	12 mm	+2 mm

The year's extremes

Hottest day

35.2 °C

16 May 2025

Coldest day

4.1 °C

22 Jan 2025

Wettest day

49.5 mm

25 Aug 2025

Windiest day

31.9 km/h

10 Oct 2025

Strongest gust

63.7 km/h

11 Jan 2025

Hottest feels-like

35.4 °C

21 May 2025

Coldest feels-like

1.3 °C

22 Jan 2025

Sunniest day

12.9 h

5 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Purísima de Bustos?

Purísima de Bustos has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 18.6 °C and it receives 593 mm of precipitation per year.

What is the hottest day ever recorded in Purísima de Bustos?

The hottest day measured in Purísima de Bustos between 1940 and 2025 was 8 May 1998, reaching 36.7 °C.

What is the coldest day in Purísima de Bustos?

The coldest day measured in Purísima de Bustos between 1940 and 2025 was 14 December 1997, at -4.0 °C.

Does it snow in Purísima de Bustos?

Almost never: Purísima de Bustos sees virtually no snow, with about 0 frost days per year.

Has the climate of Purísima de Bustos warmed?

Yes: Purísima de Bustos warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Purísima de Bustos?

The wettest day measured in Purísima de Bustos between 1940 and 2025 was 13 June 2018, with 62 mm of rain in 24 hours.

What was the windiest day in Purísima de Bustos?

The windiest day measured in Purísima de Bustos between 1940 and 2025 was 4 March 1983, with winds reaching 46.7 km/h.

What is the warmest month in Purísima de Bustos?

The warmest month in Purísima de Bustos is May (22.6 °C on average); the coldest is January (14.4 °C).

How much does it rain in Purísima de Bustos?

Purísima de Bustos receives on average 593 mm of precipitation per year, spread over about 88 rainy days.

Is it sunny in Purísima de Bustos?

Purísima de Bustos 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 Purísima de Bustos?

The heaviest 24-hour snowfall measured in Purísima de Bustos between 1940 and 2025 was 11 January 1967, with 2.5 cm.

Are there tropical nights in Purísima de Bustos?

Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Purísima de Bustos.

What was the most extreme apparent temperature in Purísima de Bustos?

In Purísima de Bustos, between 1940 and 2025, the highest apparent temperature reached 37.4 °C on 21 May 2024, and the lowest was -8.4 °C on 14 December 1997.

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