Calvillito Weather Records (MXN00001096)

Record envelope, standing records and threshold days for Calvillito (MXN00001096), Mexico, with 31 years of record.

Key Facts for Calvillito

Calvillito (MXN00001096) is a weather station in Mexico at 21.83 latitude and -102.17 longitude, 1,970 m (6,462 ft) above sea level.
The station reports from 1983 to 2013, 31 years of record.
1,464 records set at Calvillito still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 21.83 latitude, -102.17 longitude.
Elevation: 1,970 m (6,462 ft).
Period of record: 1983 to 2013, 31 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Calvillito. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Calvillito, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	28.9 C (84.0 F)	-9.4 C (15.1 F)	n/a	n/a
Feb	31.7 C (89.1 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	35.0 C (95.0 F)	-9.4 C (15.1 F)	n/a	n/a
Apr	35.0 C (95.0 F)	-2.2 C (28.0 F)	n/a	n/a
May	38.9 C (102.0 F)	0.6 C (33.1 F)	n/a	n/a
Jun	37.8 C (100.0 F)	3.9 C (39.0 F)	n/a	n/a
Jul	35.0 C (95.0 F)	5.6 C (42.1 F)	n/a	n/a
Aug	33.9 C (93.0 F)	5.0 C (41.0 F)	n/a	n/a
Sep	35.0 C (95.0 F)	1.7 C (35.1 F)	n/a	n/a
Oct	31.7 C (89.1 F)	-3.3 C (26.1 F)	n/a	n/a
Nov	31.7 C (89.1 F)	-8.3 C (17.1 F)	n/a	n/a
Dec	32.8 C (91.0 F)	-10.0 C (14.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Calvillito still stand. 1995 holds the most, with 142.

Standing records at Calvillito by the year they were set
Year set	Standing records
1983	26
1984	45
1985	38
1986	43
1987	42
1988	50
1989	27
1990	31
1991	33
1992	89
1993	28
1994	47
1995	142
1996	112
1997	116
1998	51
1999	13
2000	19
2001	32
2002	41
2003	38
2004	42
2005	36
2006	34
2007	26
2008	50
2009	38
2010	71
2011	35
2012	30
2013	39

Wettest Day of Each Month

Sep: 114.8 mm (4.5 in)

The wettest day on record for each calendar month at Calvillito. The most was 114.8 mm (4.5 in) on 14 September 2009.

Record daily precipitation for each month at Calvillito
Month	Record daily precipitation (mm)	Date
Jan	55.4 mm (2.2 in)	1 January 2013
Feb	46.0 mm (1.8 in)	3 February 2010
Mar	24.9 mm (1.0 in)	2 March 2001
Apr	17.8 mm (0.7 in)	18 April 2001
May	31.0 mm (1.2 in)	11 May 2006
Jun	69.9 mm (2.8 in)	19 June 2007
Jul	63.0 mm (2.5 in)	7 July 1991
Aug	83.8 mm (3.3 in)	15 August 1985
Sep	114.8 mm (4.5 in)	14 September 2009
Oct	59.9 mm (2.4 in)	5 October 1986
Nov	25.9 mm (1.0 in)	10 November 2006
Dec	19.8 mm (0.8 in)	28 December 2000

Period of Record Coverage

1983 to 2013

31 years of record at Calvillito, 1983 to 2013. 4 years have data for under 90 percent of days and are left out of rankings: 1983, 1985, 1986, 2013.

Days with data per year at Calvillito
Year	Days with data	Share of year	Complete
1983	153	42%	No
1984	365	100%	Yes
1985	243	67%	No
1986	309	85%	No
1987	357	98%	Yes
1988	365	100%	Yes
1989	365	100%	Yes
1990	362	99%	Yes
1991	354	97%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	348	95%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	364	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	361	99%	Yes
2013	304	83%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

26 complete years, 1984 to 2012

One stripe for each of 26 complete years at Calvillito, 1984 to 2012. Blue stripes are years cooler than the station's own mean of 16.4 C (61.5 F); red stripes are warmer. The coolest year was 2010, at 14.4 C (57.9 F), and the warmest was 1995, at 18.8 C (65.9 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at Calvillito as warming stripes, 1984 to 2012
Year	Annual mean temperature	Difference from the station mean
1984	16.9 C	+0.51 C
1987	16.5 C	+0.08 C
1988	17.0 C	+0.66 C
1989	16.9 C	+0.54 C
1990	16.9 C	+0.49 C
1991	16.8 C	+0.37 C
1992	17.5 C	+1.08 C
1993	17.7 C	+1.28 C
1994	18.4 C	+1.97 C
1995	18.8 C	+2.46 C
1996	18.8 C	+2.44 C
1997	18.1 C	+1.68 C
1998	15.4 C	-1.03 C
1999	16.0 C	-0.36 C
2000	16.1 C	-0.31 C
2002	16.1 C	-0.30 C
2003	16.0 C	-0.40 C
2004	15.2 C	-1.22 C
2005	15.5 C	-0.90 C
2006	15.6 C	-0.79 C
2007	15.3 C	-1.08 C
2008	14.7 C	-1.69 C
2009	15.3 C	-1.04 C
2010	14.4 C	-1.97 C
2011	15.2 C	-1.16 C
2012	15.0 C	-1.35 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1983 to 2013

Yearly extremes at Calvillito: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	2009	33.9 C (93.0 F)	31
Coldest night (TNn)	-10.0 C (14.0 F)	2003	-5.0 C (23.0 F)	31
Wettest day (Rx1day)	114.8 mm (4.5 in)	2009	46.0 mm (1.8 in)	31
Wettest five days (Rx5day)	194.9 mm (7.7 in)	2008	88.6 mm (3.5 in)	31
Longest dry spell (CDD)	167 days	1984	94 days	31

Hottest day (TXx)

The hottest day of the year at Calvillito, 1983 to 2013. The record is 38.9 C (102.0 F) in 2009, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at Calvillito by year
Year	Hottest day (TXx)
1983	31.7 C (89.1 F)
1984	32.8 C (91.0 F)
1985	33.9 C (93.0 F)
1986	33.9 C (93.0 F)
1987	32.2 C (90.0 F)
1988	33.9 C (93.0 F)
1989	35.0 C (95.0 F)
1990	35.6 C (96.1 F)
1991	35.0 C (95.0 F)
1992	33.9 C (93.0 F)
1993	35.0 C (95.0 F)
1994	35.0 C (95.0 F)
1995	37.8 C (100.0 F)
1996	37.8 C (100.0 F)
1997	35.6 C (96.1 F)
1998	33.9 C (93.0 F)
1999	32.8 C (91.0 F)
2000	31.7 C (89.1 F)
2001	35.0 C (95.0 F)
2002	35.0 C (95.0 F)
2003	35.6 C (96.1 F)
2004	32.8 C (91.0 F)
2005	35.6 C (96.1 F)
2006	33.9 C (93.0 F)
2007	35.0 C (95.0 F)
2008	35.0 C (95.0 F)
2009	38.9 C (102.0 F)
2010	33.9 C (93.0 F)
2011	33.9 C (93.0 F)
2012	32.8 C (91.0 F)
2013	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at Calvillito, 1983 to 2013. The record is -10.0 C (14.0 F) in 2003, marked on the chart; the median year is -5.0 C (23.0 F).

Coldest night (TNn) at Calvillito by year
Year	Coldest night (TNn)
1983	-3.3 C (26.1 F)
1984	0.0 C (32.0 F)
1985	-5.0 C (23.0 F)
1986	-5.0 C (23.0 F)
1987	-2.2 C (28.0 F)
1988	-3.3 C (26.1 F)
1989	-3.3 C (26.1 F)
1990	-3.3 C (26.1 F)
1991	-5.0 C (23.0 F)
1992	0.6 C (33.1 F)
1993	-2.2 C (28.0 F)
1994	0.0 C (32.0 F)
1995	-2.2 C (28.0 F)
1996	-2.2 C (28.0 F)
1997	-7.2 C (19.0 F)
1998	-9.4 C (15.1 F)
1999	-2.2 C (28.0 F)
2000	-2.2 C (28.0 F)
2001	-6.1 C (21.0 F)
2002	-6.1 C (21.0 F)
2003	-10.0 C (14.0 F)
2004	-6.1 C (21.0 F)
2005	-6.1 C (21.0 F)
2006	-9.4 C (15.1 F)
2007	-4.4 C (24.1 F)
2008	-6.1 C (21.0 F)
2009	-5.0 C (23.0 F)
2010	-8.3 C (17.1 F)
2011	-8.3 C (17.1 F)
2012	-5.0 C (23.0 F)
2013	-9.4 C (15.1 F)

Wettest day (Rx1day)

The wettest day of the year at Calvillito, 1983 to 2013. The record is 114.8 mm (4.5 in) in 2009, marked on the chart; the median year is 46.0 mm (1.8 in).

Wettest day (Rx1day) at Calvillito by year
Year	Wettest day (Rx1day)
1983	24.9 mm (1.0 in)
1984	20.6 mm (0.8 in)
1985	83.8 mm (3.3 in)
1986	59.9 mm (2.4 in)
1987	31.8 mm (1.3 in)
1988	26.9 mm (1.1 in)
1989	19.8 mm (0.8 in)
1990	52.8 mm (2.1 in)
1991	63.0 mm (2.5 in)
1992	54.9 mm (2.2 in)
1993	33.8 mm (1.3 in)
1994	57.9 mm (2.3 in)
1995	33.8 mm (1.3 in)
1996	51.8 mm (2.0 in)
1997	41.9 mm (1.6 in)
1998	32.8 mm (1.3 in)
1999	54.9 mm (2.2 in)
2000	39.9 mm (1.6 in)
2001	57.4 mm (2.3 in)
2002	42.2 mm (1.7 in)
2003	48.3 mm (1.9 in)
2004	34.3 mm (1.4 in)
2005	46.0 mm (1.8 in)
2006	45.0 mm (1.8 in)
2007	69.9 mm (2.8 in)
2008	69.9 mm (2.8 in)
2009	114.8 mm (4.5 in)
2010	46.0 mm (1.8 in)
2011	33.5 mm (1.3 in)
2012	41.4 mm (1.6 in)
2013	62.0 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Calvillito, 1983 to 2013. The record is 194.9 mm (7.7 in) in 2008, marked on the chart; the median year is 88.6 mm (3.5 in).

Wettest five days (Rx5day) at Calvillito by year
Year	Wettest five days (Rx5day)
1983	25.5 mm (1.0 in)
1984	34.6 mm (1.4 in)
1985	119.4 mm (4.7 in)
1986	122.3 mm (4.8 in)
1987	44.0 mm (1.7 in)
1988	70.1 mm (2.8 in)
1989	52.9 mm (2.1 in)
1990	100.3 mm (3.9 in)
1991	152.7 mm (6.0 in)
1992	98.1 mm (3.9 in)
1993	68.6 mm (2.7 in)
1994	98.5 mm (3.9 in)
1995	88.6 mm (3.5 in)
1996	116.4 mm (4.6 in)
1997	81.1 mm (3.2 in)
1998	74.5 mm (2.9 in)
1999	63.6 mm (2.5 in)
2000	65.2 mm (2.6 in)
2001	87.9 mm (3.5 in)
2002	84.9 mm (3.3 in)
2003	97.1 mm (3.8 in)
2004	74.7 mm (2.9 in)
2005	79.1 mm (3.1 in)
2006	94.7 mm (3.7 in)
2007	169.2 mm (6.7 in)
2008	194.9 mm (7.7 in)
2009	125.3 mm (4.9 in)
2010	107.5 mm (4.2 in)
2011	64.8 mm (2.6 in)
2012	98.6 mm (3.9 in)
2013	120.2 mm (4.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Calvillito, 1983 to 2013. The record is 167 days in 1984, marked on the chart; the median year is 94 days.

Longest dry spell (CDD) at Calvillito by year
Year	Longest dry spell (CDD)
1983	93 days
1984	167 days
1985	122 days
1986	110 days
1987	93 days
1988	96 days
1989	130 days
1990	69 days
1991	94 days
1992	62 days
1993	82 days
1994	87 days
1995	89 days
1996	113 days
1997	50 days
1998	157 days
1999	165 days
2000	141 days
2001	76 days
2002	58 days
2003	65 days
2004	64 days
2005	73 days
2006	105 days
2007	109 days
2008	107 days
2009	128 days
2010	98 days
2011	121 days
2012	56 days
2013	71 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

21 years with a frost

Across 21 years with a frost, the median last spring frost at Calvillito falls on 12 March and the median first autumn frost on 9 November, which leaves a median of 243 days between them.

Frost dates and growing season at Calvillito
Measure	Median, all years	Earliest period	Recent period (1987 to 2012)	Recent against earliest	Fitted trend
Last spring frost	12 March	n/a	12 March	n/a	n/a
First autumn frost	9 November	n/a	9 November	n/a	n/a
Growing days	243 days	n/a	243 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Calvillito standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Calvillito threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).