Santa Rosalita Weather Records (MXN00002109)

Record envelope, standing records and threshold days for Santa Rosalita (MXN00002109), Mexico, with 36 years of record.

Key Facts for Santa Rosalita

Santa Rosalita (MXN00002109) is a weather station in Mexico at 28.67 latitude and -114.23 longitude, 8 m (26 ft) above sea level.
The station reports from 1977 to 2012, 36 years of record.
1,464 records set at Santa Rosalita still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 28.67 latitude, -114.23 longitude.
Elevation: 8 m (26 ft).
Period of record: 1977 to 2012, 36 years.
Eligible elements: none yet.

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 Santa Rosalita. 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 Santa Rosalita, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	40.0 C (104.0 F)	0.6 C (33.1 F)	n/a	n/a
Feb	40.6 C (105.1 F)	0.6 C (33.1 F)	n/a	n/a
Mar	40.0 C (104.0 F)	0.6 C (33.1 F)	n/a	n/a
Apr	40.6 C (105.1 F)	1.7 C (35.1 F)	n/a	n/a
May	43.9 C (111.0 F)	1.7 C (35.1 F)	n/a	n/a
Jun	40.6 C (105.1 F)	3.9 C (39.0 F)	n/a	n/a
Jul	43.9 C (111.0 F)	3.9 C (39.0 F)	n/a	n/a
Aug	43.9 C (111.0 F)	5.6 C (42.1 F)	n/a	n/a
Sep	42.8 C (109.0 F)	5.6 C (42.1 F)	n/a	n/a
Oct	46.7 C (116.1 F)	5.0 C (41.0 F)	n/a	n/a
Nov	43.9 C (111.0 F)	1.1 C (34.0 F)	n/a	n/a
Dec	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Santa Rosalita still stand. 1980 holds the most, with 167.

Standing records at Santa Rosalita by the year they were set
Year set	Standing records
1977	1
1978	28
1979	23
1980	167
1981	20
1982	125
1983	137
1984	26
1985	58
1986	21
1989	17
1990	157
1991	69
1992	43
1993	17
1994	32
1995	30
1996	43
1997	12
1998	7
1999	134
2000	77
2001	63
2002	40
2003	3
2004	18
2005	13
2006	16
2007	10
2008	6
2009	8
2010	11
2011	5
2012	27

Wettest Day of Each Month

Feb: 169.9 mm (6.7 in)

The wettest day on record for each calendar month at Santa Rosalita. The most was 169.9 mm (6.7 in) on 27 February 1991.

Record daily precipitation for each month at Santa Rosalita
Month	Record daily precipitation (mm)	Date
Jan	69.9 mm (2.8 in)	8 January 1993
Feb	169.9 mm (6.7 in)	27 February 1991
Mar	59.9 mm (2.4 in)	7 March 2000
Apr	3.8 mm (0.15 in)	8 April 2011
May	19.8 mm (0.8 in)	30 May 1991
Jun	0.3 mm (0.01 in)	2 June 2005
Jul	6.9 mm (0.27 in)	12 July 2006
Aug	31.8 mm (1.3 in)	16 August 1983
Sep	59.9 mm (2.4 in)	9 September 1991
Oct	59.9 mm (2.4 in)	3 October 1983
Nov	22.9 mm (0.9 in)	13 November 2011
Dec	169.9 mm (6.7 in)	3 December 1992

Period of Record Coverage

1977 to 2012

34 years of record at Santa Rosalita, 1977 to 2012. 17 years have data for under 90 percent of days and are left out of rankings: 1977, 1978, 1979, 1985, 1986, 1989, 1996, 1997 and others.

Days with data per year at Santa Rosalita
Year	Days with data	Share of year	Complete
1977	15	4%	No
1978	304	83%	No
1979	139	38%	No
1980	363	99%	Yes
1981	335	92%	Yes
1982	359	98%	Yes
1983	355	97%	Yes
1984	345	94%	Yes
1985	239	65%	No
1986	89	24%	No
1989	41	11%	No
1990	362	99%	Yes
1991	362	99%	Yes
1992	354	97%	Yes
1993	339	93%	Yes
1994	350	96%	Yes
1995	354	97%	Yes
1996	319	87%	No
1997	296	81%	No
1998	264	72%	No
1999	363	99%	Yes
2000	344	94%	Yes
2001	362	99%	Yes
2002	358	98%	Yes
2003	360	99%	Yes
2004	347	95%	Yes
2005	324	89%	No
2006	277	76%	No
2007	200	55%	No
2008	144	39%	No
2009	289	79%	No
2010	181	50%	No
2011	240	66%	No
2012	196	54%	No

Latest Records

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

Climate Trend

16 complete years, 1980 to 2005

One stripe for each of 16 complete years at Santa Rosalita, 1980 to 2005. Blue stripes are years cooler than the station's own mean of 19.0 C (66.3 F); red stripes are warmer. The coolest year was 2001, at 14.8 C (58.6 F), and the warmest was 1990, at 23.8 C (74.9 F). The strongest colour marks a difference of 4.9 C (8.8 F).

Annual mean temperature at Santa Rosalita as warming stripes, 1980 to 2005
Year	Annual mean temperature	Difference from the station mean
1980	20.8 C	+1.75 C
1982	17.3 C	-1.72 C
1983	19.4 C	+0.34 C
1984	18.3 C	-0.79 C
1990	23.8 C	+4.80 C
1991	22.5 C	+3.46 C
1992	21.6 C	+2.56 C
1994	21.8 C	+2.75 C
1995	20.9 C	+1.83 C
1996	20.1 C	+1.10 C
1999	14.9 C	-4.15 C
2001	14.8 C	-4.25 C
2002	16.0 C	-3.04 C
2003	17.7 C	-1.38 C
2004	17.3 C	-1.79 C
2005	17.5 C	-1.53 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

1977 to 2012

Yearly extremes at Santa Rosalita: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.7 C (116.1 F)	1990	35.6 C (96.1 F)	34
Coldest night (TNn)	0.6 C (33.1 F)	1983	3.9 C (39.0 F)	34
Wettest day (Rx1day)	169.9 mm (6.7 in)	1991	19.8 mm (0.8 in)	34
Wettest five days (Rx5day)	269.7 mm (10.6 in)	1992	28.1 mm (1.1 in)	34
Longest dry spell (CDD)	348 days	1990	133 days	34

Hottest day (TXx)

The hottest day of the year at Santa Rosalita, 1977 to 2012. The record is 46.7 C (116.1 F) in 1990, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at Santa Rosalita by year
Year	Hottest day (TXx)
1977	25.0 C (77.0 F)
1978	31.7 C (89.1 F)
1979	36.7 C (98.1 F)
1980	43.9 C (111.0 F)
1981	35.6 C (96.1 F)
1982	40.0 C (104.0 F)
1983	41.7 C (107.1 F)
1984	35.6 C (96.1 F)
1985	33.9 C (93.0 F)
1986	32.8 C (91.0 F)
1989	38.9 C (102.0 F)
1990	46.7 C (116.1 F)
1991	45.0 C (113.0 F)
1992	41.7 C (107.1 F)
1993	40.0 C (104.0 F)
1994	45.0 C (113.0 F)
1995	42.8 C (109.0 F)
1996	38.9 C (102.0 F)
1997	35.6 C (96.1 F)
1998	37.8 C (100.0 F)
1999	33.9 C (93.0 F)
2000	28.9 C (84.0 F)
2001	30.0 C (86.0 F)
2002	32.2 C (90.0 F)
2003	32.8 C (91.0 F)
2004	32.8 C (91.0 F)
2005	33.9 C (93.0 F)
2006	31.7 C (89.1 F)
2007	31.7 C (89.1 F)
2008	35.0 C (95.0 F)
2009	40.0 C (104.0 F)
2010	37.2 C (99.0 F)
2011	34.4 C (93.9 F)
2012	38.9 C (102.0 F)

Coldest night (TNn)

The coldest night of the year at Santa Rosalita, 1977 to 2012. The record is 0.6 C (33.1 F) in 1983, marked on the chart; the median year is 3.9 C (39.0 F).

Coldest night (TNn) at Santa Rosalita by year
Year	Coldest night (TNn)
1977	7.2 C (45.0 F)
1978	4.4 C (39.9 F)
1979	5.0 C (41.0 F)
1980	1.7 C (35.1 F)
1981	2.8 C (37.0 F)
1982	1.7 C (35.1 F)
1983	0.6 C (33.1 F)
1984	3.9 C (39.0 F)
1985	1.7 C (35.1 F)
1986	1.7 C (35.1 F)
1989	8.9 C (48.0 F)
1990	5.0 C (41.0 F)
1991	5.0 C (41.0 F)
1992	1.7 C (35.1 F)
1993	5.0 C (41.0 F)
1994	3.9 C (39.0 F)
1995	1.7 C (35.1 F)
1996	2.8 C (37.0 F)
1997	3.9 C (39.0 F)
1998	3.9 C (39.0 F)
1999	1.7 C (35.1 F)
2000	3.9 C (39.0 F)
2001	1.7 C (35.1 F)
2002	0.6 C (33.1 F)
2003	5.0 C (41.0 F)
2004	1.1 C (34.0 F)
2005	6.1 C (43.0 F)
2006	2.8 C (37.0 F)
2007	6.1 C (43.0 F)
2008	5.0 C (41.0 F)
2009	5.6 C (42.1 F)
2010	2.2 C (36.0 F)
2011	0.6 C (33.1 F)
2012	5.0 C (41.0 F)

Wettest day (Rx1day)

The wettest day of the year at Santa Rosalita, 1977 to 2012. The record is 169.9 mm (6.7 in) in 1991, marked on the chart; the median year is 19.8 mm (0.8 in).

Wettest day (Rx1day) at Santa Rosalita by year
Year	Wettest day (Rx1day)
1977	0.8 mm (0.03 in)
1978	47.8 mm (1.9 in)
1979	0.0 mm (0.00 in)
1980	27.4 mm (1.1 in)
1981	8.9 mm (0.35 in)
1982	39.9 mm (1.6 in)
1983	59.9 mm (2.4 in)
1984	23.9 mm (0.9 in)
1985	19.8 mm (0.8 in)
1986	3.3 mm (0.13 in)
1989	0.0 mm (0.00 in)
1990	4.8 mm (0.19 in)
1991	169.9 mm (6.7 in)
1992	169.9 mm (6.7 in)
1993	119.9 mm (4.7 in)
1994	59.9 mm (2.4 in)
1995	31.0 mm (1.2 in)
1996	6.9 mm (0.27 in)
1997	79.8 mm (3.1 in)
1998	30.0 mm (1.2 in)
1999	1.8 mm (0.07 in)
2000	59.9 mm (2.4 in)
2001	19.8 mm (0.8 in)
2002	8.9 mm (0.35 in)
2003	19.8 mm (0.8 in)
2004	16.0 mm (0.6 in)
2005	34.8 mm (1.4 in)
2006	17.8 mm (0.7 in)
2007	47.2 mm (1.9 in)
2008	8.9 mm (0.35 in)
2009	13.0 mm (0.5 in)
2010	19.8 mm (0.8 in)
2011	22.9 mm (0.9 in)
2012	7.9 mm (0.31 in)

Wettest five days (Rx5day)

The wettest five days of the year at Santa Rosalita, 1977 to 2012. The record is 269.7 mm (10.6 in) in 1992, marked on the chart; the median year is 28.1 mm (1.1 in).

Wettest five days (Rx5day) at Santa Rosalita by year
Year	Wettest five days (Rx5day)
1977	0.8 mm (0.03 in)
1978	72.6 mm (2.9 in)
1979	0.0 mm (0.00 in)
1980	27.4 mm (1.1 in)
1981	17.0 mm (0.7 in)
1982	44.7 mm (1.8 in)
1983	92.9 mm (3.7 in)
1984	28.8 mm (1.1 in)
1985	30.7 mm (1.2 in)
1986	4.1 mm (0.16 in)
1989	0.0 mm (0.00 in)
1990	4.8 mm (0.19 in)
1991	169.9 mm (6.7 in)
1992	269.7 mm (10.6 in)
1993	239.5 mm (9.4 in)
1994	89.9 mm (3.5 in)
1995	70.6 mm (2.8 in)
1996	6.9 mm (0.27 in)
1997	102.4 mm (4.0 in)
1998	30.8 mm (1.2 in)
1999	1.8 mm (0.07 in)
2000	94.7 mm (3.7 in)
2001	22.6 mm (0.9 in)
2002	11.0 mm (0.4 in)
2003	39.6 mm (1.6 in)
2004	18.6 mm (0.7 in)
2005	49.1 mm (1.9 in)
2006	17.8 mm (0.7 in)
2007	56.6 mm (2.2 in)
2008	9.2 mm (0.36 in)
2009	19.3 mm (0.8 in)
2010	33.8 mm (1.3 in)
2011	22.9 mm (0.9 in)
2012	10.9 mm (0.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Santa Rosalita, 1977 to 2012. The record is 348 days in 1990, marked on the chart; the median year is 133 days.

Longest dry spell (CDD) at Santa Rosalita by year
Year	Longest dry spell (CDD)
1977	11 days
1978	111 days
1979	61 days
1980	163 days
1981	240 days
1982	111 days
1983	115 days
1984	65 days
1985	167 days
1986	38 days
1989	41 days
1990	348 days
1991	72 days
1992	256 days
1993	75 days
1994	102 days
1995	263 days
1996	83 days
1997	63 days
1998	157 days
1999	280 days
2000	216 days
2001	308 days
2002	302 days
2003	126 days
2004	156 days
2005	106 days
2006	64 days
2007	278 days
2008	185 days
2009	42 days
2010	179 days
2011	218 days
2012	139 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 Santa Rosalita standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Santa Rosalita 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).