San Regis Weather Records (MXN00002085)

Record envelope, standing records and threshold days for San Regis (MXN00002085), Mexico, with 35 years of record.

Key Facts for San Regis

San Regis (MXN00002085) is a weather station in Mexico at 28.58 latitude and -113.75 longitude, 495 m (1,624 ft) above sea level.
The station reports from 1972 to 2006, 35 years of record.
1,464 records set at San Regis still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
San Regis tied a daily record low minimum temperature of 5.0 C (41.0 F) on 30 April 2006.

About the Station

Location: Mexico, 28.58 latitude, -113.75 longitude.
Elevation: 495 m (1,624 ft).
Period of record: 1972 to 2006, 35 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 San Regis. 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 San Regis, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.7 C (98.1 F)	-2.2 C (28.0 F)	n/a	n/a
Feb	38.9 C (102.0 F)	-3.3 C (26.1 F)	n/a	n/a
Mar	38.9 C (102.0 F)	0.0 C (32.0 F)	n/a	n/a
Apr	45.0 C (113.0 F)	1.7 C (35.1 F)	n/a	n/a
May	41.7 C (107.1 F)	0.6 C (33.1 F)	n/a	n/a
Jun	45.6 C (114.1 F)	2.8 C (37.0 F)	n/a	n/a
Jul	48.9 C (120.0 F)	3.9 C (39.0 F)	n/a	n/a
Aug	45.6 C (114.1 F)	0.6 C (33.1 F)	n/a	n/a
Sep	45.6 C (114.1 F)	3.9 C (39.0 F)	n/a	n/a
Oct	43.9 C (111.0 F)	2.8 C (37.0 F)	n/a	n/a
Nov	40.0 C (104.0 F)	0.6 C (33.1 F)	n/a	n/a
Dec	36.7 C (98.1 F)	-1.1 C (30.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Regis still stand. 1999 holds the most, with 188.

Standing records at San Regis by the year they were set
Year set	Standing records
1972	12
1973	89
1974	45
1975	19
1978	41
1979	66
1980	47
1981	29
1982	24
1983	16
1984	36
1985	41
1986	43
1987	55
1988	55
1989	79
1990	68
1991	64
1992	45
1993	44
1994	25
1995	54
1996	48
1997	41
1998	46
1999	188
2000	30
2001	29
2002	29
2003	29
2004	21
2005	4
2006	2

Wettest Day of Each Month

Sep: 69.9 mm (2.8 in)

The wettest day on record for each calendar month at San Regis. The most was 69.9 mm (2.8 in) on 24 September 1997.

Record daily precipitation for each month at San Regis
Month	Record daily precipitation (mm)	Date
Jan	38.9 mm (1.5 in)	7 January 1993
Feb	49.8 mm (2.0 in)	20 February 1973
Mar	41.9 mm (1.6 in)	1 March 1992
Apr	26.9 mm (1.1 in)	2 April 1992
May	1.8 mm (0.07 in)	15 May 1989
Jun	1.3 mm (0.05 in)	10 June 2005
Jul	43.9 mm (1.7 in)	18 July 1974
Aug	16.8 mm (0.7 in)	10 August 1991
Sep	69.9 mm (2.8 in)	24 September 1997
Oct	64.8 mm (2.6 in)	3 October 1983
Nov	23.9 mm (0.9 in)	22 November 1978
Dec	69.9 mm (2.8 in)	5 December 1994

Period of Record Coverage

1972 to 2006

33 years of record at San Regis, 1972 to 2006. 9 years have data for under 90 percent of days and are left out of rankings: 1972, 1975, 1978, 1979, 1983, 1999, 2000, 2001 and others.

Days with data per year at San Regis
Year	Days with data	Share of year	Complete
1972	31	8%	No
1973	356	98%	Yes
1974	365	100%	Yes
1975	220	60%	No
1978	282	77%	No
1979	310	85%	No
1980	338	92%	Yes
1981	350	96%	Yes
1982	346	95%	Yes
1983	213	58%	No
1984	353	96%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	364	100%	Yes
1988	366	100%	Yes
1989	362	99%	Yes
1990	360	99%	Yes
1991	362	99%	Yes
1992	364	99%	Yes
1993	357	98%	Yes
1994	365	100%	Yes
1995	347	95%	Yes
1996	361	99%	Yes
1997	361	99%	Yes
1998	364	100%	Yes
1999	295	81%	No
2000	304	83%	No
2001	315	86%	No
2002	345	95%	Yes
2003	364	100%	Yes
2004	345	94%	Yes
2005	356	98%	Yes
2006	173	47%	No

Latest Records

Latest records at San Regis
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 April 2006	San Regis, MX	daily low min (Tie)	5.0 C (41.0 F)	tie	31 years	3 of 100 (Routine)
27 April 2006	San Regis, MX	daily low min (Tie)	5.0 C (41.0 F)	tie	31 years	3 of 100 (Routine)
23 April 2006	San Regis, MX	daily low min	2.8 C (37.0 F)	2.2 C (4.0 F)	32 years	18 of 100 (Routine)
11 March 2006	San Regis, MX	daily low max (Tie)	15.0 C (59.0 F)	tie	32 years	3 of 100 (Routine)
10 March 2006	San Regis, MX	daily low max	15.0 C (59.0 F)	0.6 C (1.1 F)	32 years	13 of 100 (Routine)
19 February 2006	San Regis, MX	daily low max (Tie)	15.6 C (60.1 F)	tie	3 years	0 of 100 (Routine)
15 December 2005	San Regis, MX	daily low max (Tie)	16.7 C (62.1 F)	tie	15 years	1 of 100 (Routine)
28 November 2005	San Regis, MX	monthly low min	0.6 C (33.1 F)	0.5 C (0.9 F)	32 years	23 of 100 (Routine)
19 November 2005	San Regis, MX	daily high min	15.6 C (60.1 F)	0.6 C (1.1 F)	18 years	9 of 100 (Routine)
31 October 2005	San Regis, MX	daily high max	37.8 C (100.0 F)	1.1 C (2.0 F)	8 years	7 of 100 (Routine)
30 September 2005	San Regis, MX	daily high min (Tie)	21.7 C (71.1 F)	tie	16 years	1 of 100 (Routine)
26 September 2005	San Regis, MX	daily high min (Tie)	21.7 C (71.1 F)	tie	26 years	2 of 100 (Routine)
25 September 2005	San Regis, MX	daily high min	23.9 C (75.0 F)	3.9 C (7.0 F)	26 years	18 of 100 (Routine)
21 September 2005	San Regis, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	10 years	1 of 100 (Routine)
6 September 2005	San Regis, MX	daily high min (Tie)	21.7 C (71.1 F)	tie	20 years	2 of 100 (Routine)
2 August 2005	San Regis, MX	daily rain	9.9 mm (0.39 in)	9.9 mm (0.39 in)	32 years	20 of 100 (Routine)
10 June 2005	San Regis, MX	monthly rain	1.3 mm (0.05 in)	1.3 mm (0.05 in)	32 years	20 of 100 (Routine)
22 April 2005	San Regis, MX	daily rain	0.8 mm (0.03 in)	0.8 mm (0.03 in)	32 years	12 of 100 (Routine)
23 March 2005	San Regis, MX	daily rain	5.3 mm (0.21 in)	5.3 mm (0.21 in)	32 years	18 of 100 (Routine)
22 February 2005	San Regis, MX	daily rain	11.4 mm (0.4 in)	5.0 mm (0.20 in)	1 year	7 of 100 (Routine)

Climate Trend

22 complete years, 1973 to 2005

One stripe for each of 22 complete years at San Regis, 1973 to 2005. Blue stripes are years cooler than the station's own mean of 19.2 C (66.6 F); red stripes are warmer. The coolest year was 1973, at 16.2 C (61.2 F), and the warmest was 1989, at 21.4 C (70.5 F). The strongest colour marks a difference of 3.0 C (5.4 F).

Annual mean temperature at San Regis as warming stripes, 1973 to 2005
Year	Annual mean temperature	Difference from the station mean
1973	16.2 C	-2.99 C
1974	17.1 C	-2.14 C
1982	19.2 C	-0.01 C
1984	19.6 C	+0.34 C
1985	18.8 C	-0.41 C
1986	20.0 C	+0.76 C
1987	20.1 C	+0.88 C
1988	20.2 C	+0.98 C
1989	21.4 C	+2.18 C
1990	20.0 C	+0.82 C
1991	19.0 C	-0.26 C
1992	20.1 C	+0.90 C
1993	20.1 C	+0.91 C
1994	20.2 C	+0.96 C
1996	21.2 C	+1.98 C
1997	20.2 C	+0.97 C
1998	19.8 C	+0.62 C
2001	18.6 C	-0.64 C
2002	17.7 C	-1.56 C
2003	16.5 C	-2.68 C
2004	17.5 C	-1.67 C
2005	19.2 C	-0.01 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

1972 to 2006

Yearly extremes at San Regis: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.9 C (120.0 F)	1995	41.7 C (107.1 F)	33
Coldest night (TNn)	-3.3 C (26.1 F)	1990	0.6 C (33.1 F)	33
Wettest day (Rx1day)	69.9 mm (2.8 in)	1994	23.9 mm (0.9 in)	33
Wettest five days (Rx5day)	109.8 mm (4.3 in)	1994	42.9 mm (1.7 in)	33
Longest dry spell (CDD)	246 days	1995	128 days	33

Hottest day (TXx)

The hottest day of the year at San Regis, 1972 to 2006. The record is 48.9 C (120.0 F) in 1995, marked on the chart; the median year is 41.7 C (107.1 F).

Hottest day (TXx) at San Regis by year
Year	Hottest day (TXx)
1972	26.7 C (80.1 F)
1973	36.7 C (98.1 F)
1974	36.7 C (98.1 F)
1975	38.9 C (102.0 F)
1978	45.0 C (113.0 F)
1979	45.6 C (114.1 F)
1980	40.6 C (105.1 F)
1981	40.6 C (105.1 F)
1982	40.0 C (104.0 F)
1983	37.8 C (100.0 F)
1984	41.7 C (107.1 F)
1985	45.0 C (113.0 F)
1986	45.6 C (114.1 F)
1987	45.6 C (114.1 F)
1988	45.0 C (113.0 F)
1989	45.0 C (113.0 F)
1990	42.8 C (109.0 F)
1991	43.9 C (111.0 F)
1992	45.0 C (113.0 F)
1993	43.9 C (111.0 F)
1994	42.8 C (109.0 F)
1995	48.9 C (120.0 F)
1996	45.0 C (113.0 F)
1997	42.8 C (109.0 F)
1998	41.7 C (107.1 F)
1999	38.9 C (102.0 F)
2000	36.7 C (98.1 F)
2001	41.7 C (107.1 F)
2002	40.6 C (105.1 F)
2003	38.9 C (102.0 F)
2004	37.8 C (100.0 F)
2005	37.8 C (100.0 F)
2006	30.6 C (87.1 F)

Coldest night (TNn)

The coldest night of the year at San Regis, 1972 to 2006. The record is -3.3 C (26.1 F) in 1990, marked on the chart; the median year is 0.6 C (33.1 F).

Coldest night (TNn) at San Regis by year
Year	Coldest night (TNn)
1972	0.6 C (33.1 F)
1973	0.6 C (33.1 F)
1974	0.6 C (33.1 F)
1975	0.6 C (33.1 F)
1978	-1.1 C (30.0 F)
1979	0.6 C (33.1 F)
1980	1.7 C (35.1 F)
1981	2.8 C (37.0 F)
1982	1.7 C (35.1 F)
1983	2.8 C (37.0 F)
1984	0.6 C (33.1 F)
1985	1.7 C (35.1 F)
1986	1.7 C (35.1 F)
1987	0.0 C (32.0 F)
1988	0.6 C (33.1 F)
1989	0.0 C (32.0 F)
1990	-3.3 C (26.1 F)
1991	0.6 C (33.1 F)
1992	0.6 C (33.1 F)
1993	0.6 C (33.1 F)
1994	0.0 C (32.0 F)
1995	0.0 C (32.0 F)
1996	0.0 C (32.0 F)
1997	0.0 C (32.0 F)
1998	0.0 C (32.0 F)
1999	0.6 C (33.1 F)
2000	2.8 C (37.0 F)
2001	-2.2 C (28.0 F)
2002	0.6 C (33.1 F)
2003	0.6 C (33.1 F)
2004	-2.2 C (28.0 F)
2005	0.6 C (33.1 F)
2006	2.8 C (37.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Regis, 1972 to 2006. The record is 69.9 mm (2.8 in) in 1994, marked on the chart; the median year is 23.9 mm (0.9 in).

Wettest day (Rx1day) at San Regis by year
Year	Wettest day (Rx1day)
1972	4.8 mm (0.19 in)
1973	49.8 mm (2.0 in)
1974	43.9 mm (1.7 in)
1975	3.8 mm (0.15 in)
1978	23.9 mm (0.9 in)
1979	20.8 mm (0.8 in)
1980	29.0 mm (1.1 in)
1981	14.0 mm (0.6 in)
1982	55.9 mm (2.2 in)
1983	64.8 mm (2.6 in)
1984	35.8 mm (1.4 in)
1985	23.9 mm (0.9 in)
1986	20.8 mm (0.8 in)
1987	46.0 mm (1.8 in)
1988	27.9 mm (1.1 in)
1989	21.8 mm (0.9 in)
1990	19.8 mm (0.8 in)
1991	32.8 mm (1.3 in)
1992	41.9 mm (1.6 in)
1993	38.9 mm (1.5 in)
1994	69.9 mm (2.8 in)
1995	21.8 mm (0.9 in)
1996	16.8 mm (0.7 in)
1997	69.9 mm (2.8 in)
1998	36.8 mm (1.4 in)
1999	15.0 mm (0.6 in)
2000	23.9 mm (0.9 in)
2001	17.8 mm (0.7 in)
2002	14.0 mm (0.6 in)
2003	28.4 mm (1.1 in)
2004	15.7 mm (0.6 in)
2005	23.9 mm (0.9 in)
2006	3.8 mm (0.15 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Regis, 1972 to 2006. The record is 109.8 mm (4.3 in) in 1994, marked on the chart; the median year is 42.9 mm (1.7 in).

Wettest five days (Rx5day) at San Regis by year
Year	Wettest five days (Rx5day)
1972	7.1 mm (0.28 in)
1973	51.4 mm (2.0 in)
1974	77.7 mm (3.1 in)
1975	5.6 mm (0.22 in)
1978	42.7 mm (1.7 in)
1979	39.9 mm (1.6 in)
1980	49.1 mm (1.9 in)
1981	43.1 mm (1.7 in)
1982	65.8 mm (2.6 in)
1983	86.4 mm (3.4 in)
1984	51.5 mm (2.0 in)
1985	23.9 mm (0.9 in)
1986	20.8 mm (0.8 in)
1987	51.6 mm (2.0 in)
1988	31.7 mm (1.2 in)
1989	29.7 mm (1.2 in)
1990	49.5 mm (1.9 in)
1991	41.5 mm (1.6 in)
1992	62.5 mm (2.5 in)
1993	79.3 mm (3.1 in)
1994	109.8 mm (4.3 in)
1995	24.9 mm (1.0 in)
1996	30.8 mm (1.2 in)
1997	79.8 mm (3.1 in)
1998	50.5 mm (2.0 in)
1999	15.0 mm (0.6 in)
2000	42.9 mm (1.7 in)
2001	23.9 mm (0.9 in)
2002	19.1 mm (0.8 in)
2003	55.6 mm (2.2 in)
2004	32.5 mm (1.3 in)
2005	53.8 mm (2.1 in)
2006	5.8 mm (0.23 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Regis, 1972 to 2006. The record is 246 days in 1995, marked on the chart; the median year is 128 days.

Longest dry spell (CDD) at San Regis by year
Year	Longest dry spell (CDD)
1972	18 days
1973	242 days
1974	130 days
1975	93 days
1978	29 days
1979	46 days
1980	64 days
1981	98 days
1982	111 days
1983	32 days
1984	91 days
1985	144 days
1986	153 days
1987	222 days
1988	90 days
1989	119 days
1990	84 days
1991	136 days
1992	233 days
1993	243 days
1994	153 days
1995	246 days
1996	236 days
1997	125 days
1998	128 days
1999	106 days
2000	193 days
2001	146 days
2002	111 days
2003	152 days
2004	231 days
2005	151 days
2006	96 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.

Download the Data

Data for San Regis standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Regis 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 2026-10-17 (17 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).