San Francisco II Weather Records (MXN00024154)

Record envelope, standing records and threshold days for San Francisco II (MXN00024154), Mexico, with 36 years of record.

Key Facts for San Francisco II

San Francisco II (MXN00024154) is a weather station in Mexico at 23.30 latitude and -101.42 longitude, 2,213 m (7,260 ft) above sea level.
The station reports from 1976 to 2011, 36 years of record.
1,464 records set at San Francisco II still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 23.30 latitude, -101.42 longitude.
Elevation: 2,213 m (7,260 ft).
Period of record: 1976 to 2011, 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 San Francisco II. 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 Francisco II, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.2 C (90.0 F)	-7.8 C (18.0 F)	n/a	n/a
Feb	31.7 C (89.1 F)	-5.0 C (23.0 F)	n/a	n/a
Mar	31.7 C (89.1 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	38.9 C (102.0 F)	0.0 C (32.0 F)	n/a	n/a
May	35.0 C (95.0 F)	1.7 C (35.1 F)	n/a	n/a
Jun	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	33.9 C (93.0 F)	2.8 C (37.0 F)	n/a	n/a
Aug	31.1 C (88.0 F)	1.1 C (34.0 F)	n/a	n/a
Sep	31.7 C (89.1 F)	1.7 C (35.1 F)	n/a	n/a
Oct	32.8 C (91.0 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	31.7 C (89.1 F)	-9.4 C (15.1 F)	n/a	n/a
Dec	35.0 C (95.0 F)	-9.4 C (15.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Francisco II still stand. 1982 holds the most, with 101.

Standing records at San Francisco II by the year they were set
Year set	Standing records
1976	8
1977	19
1978	38
1979	8
1981	52
1982	101
1983	37
1984	15
1985	64
1986	14
1991	60
1992	54
1993	33
1994	36
1995	64
1996	54
1997	33
1998	55
1999	40
2000	22
2001	37
2002	65
2003	96
2004	10
2005	34
2006	68
2007	69
2008	68
2009	91
2010	84
2011	35

Wettest Day of Each Month

Jul: 61.5 mm (2.4 in)

The wettest day on record for each calendar month at San Francisco II. The most was 61.5 mm (2.4 in) on 15 July 1984.

Record daily precipitation for each month at San Francisco II
Month	Record daily precipitation (mm)	Date
Jan	40.4 mm (1.6 in)	30 January 1984
Feb	17.0 mm (0.7 in)	1 February 1997
Mar	17.8 mm (0.7 in)	13 March 1992
Apr	44.2 mm (1.7 in)	16 April 1994
May	46.5 mm (1.8 in)	1 May 1985
Jun	43.9 mm (1.7 in)	4 June 1979
Jul	61.5 mm (2.4 in)	15 July 1984
Aug	59.4 mm (2.3 in)	14 August 1984
Sep	41.1 mm (1.6 in)	19 September 1992
Oct	41.4 mm (1.6 in)	10 October 1982
Nov	42.9 mm (1.7 in)	16 November 1976
Dec	34.3 mm (1.4 in)	25 December 1991

Period of Record Coverage

1976 to 2011

31 years of record at San Francisco II, 1976 to 2011. 11 years have data for under 90 percent of days and are left out of rankings: 1976, 1978, 1979, 1981, 1982, 1984, 1986, 1993 and others.

Days with data per year at San Francisco II
Year	Days with data	Share of year	Complete
1976	92	25%	No
1977	365	100%	Yes
1978	296	81%	No
1979	91	25%	No
1981	113	31%	No
1982	273	75%	No
1983	365	100%	Yes
1984	305	83%	No
1985	365	100%	Yes
1986	150	41%	No
1991	365	100%	Yes
1992	365	100%	Yes
1993	270	74%	No
1994	365	100%	Yes
1995	361	99%	Yes
1996	335	92%	Yes
1997	364	100%	Yes
1998	363	99%	Yes
1999	363	99%	Yes
2000	365	100%	Yes
2001	365	100%	Yes
2002	334	92%	Yes
2003	334	92%	Yes
2004	22	6%	No
2005	304	83%	No
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	363	99%	Yes
2011	212	58%	No

Latest Records

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

Climate Trend

17 complete years, 1977 to 2010

One stripe for each of 17 complete years at San Francisco II, 1977 to 2010. Blue stripes are years cooler than the station's own mean of 15.3 C (59.6 F); red stripes are warmer. The coolest year was 2007, at 14.0 C (57.1 F), and the warmest was 1983, at 17.4 C (63.3 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at San Francisco II as warming stripes, 1977 to 2010
Year	Annual mean temperature	Difference from the station mean
1977	15.5 C	+0.14 C
1983	17.4 C	+2.07 C
1985	16.8 C	+1.43 C
1991	15.5 C	+0.18 C
1992	14.5 C	-0.89 C
1994	15.7 C	+0.38 C
1995	14.9 C	-0.41 C
1997	14.6 C	-0.73 C
1998	15.4 C	+0.05 C
1999	14.9 C	-0.46 C
2000	15.4 C	+0.01 C
2001	15.6 C	+0.29 C
2006	14.9 C	-0.40 C
2007	14.0 C	-1.38 C
2008	14.9 C	-0.43 C
2009	15.7 C	+0.34 C
2010	15.2 C	-0.19 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

1976 to 2011

Yearly extremes at San Francisco II: 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)	1983	31.7 C (89.1 F)	31
Coldest night (TNn)	-9.4 C (15.1 F)	2006	0.0 C (32.0 F)	31
Wettest day (Rx1day)	61.5 mm (2.4 in)	1984	29.2 mm (1.1 in)	31
Wettest five days (Rx5day)	128.1 mm (5.0 in)	1984	54.6 mm (2.1 in)	31
Longest dry spell (CDD)	179 days	1991	65 days	31

Hottest day (TXx)

The hottest day of the year at San Francisco II, 1976 to 2011. The record is 38.9 C (102.0 F) in 1983, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at San Francisco II by year
Year	Hottest day (TXx)
1976	25.0 C (77.0 F)
1977	30.6 C (87.1 F)
1978	31.7 C (89.1 F)
1979	32.2 C (90.0 F)
1981	28.9 C (84.0 F)
1982	30.6 C (87.1 F)
1983	38.9 C (102.0 F)
1984	30.0 C (86.0 F)
1985	29.4 C (84.9 F)
1986	34.4 C (93.9 F)
1991	35.6 C (96.1 F)
1992	31.7 C (89.1 F)
1993	32.8 C (91.0 F)
1994	33.9 C (93.0 F)
1995	32.8 C (91.0 F)
1996	33.9 C (93.0 F)
1997	31.7 C (89.1 F)
1998	33.9 C (93.0 F)
1999	31.1 C (88.0 F)
2000	31.7 C (89.1 F)
2001	31.7 C (89.1 F)
2002	31.7 C (89.1 F)
2003	28.9 C (84.0 F)
2004	35.0 C (95.0 F)
2005	32.8 C (91.0 F)
2006	38.9 C (102.0 F)
2007	30.0 C (86.0 F)
2008	31.7 C (89.1 F)
2009	32.8 C (91.0 F)
2010	31.7 C (89.1 F)
2011	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at San Francisco II, 1976 to 2011. The record is -9.4 C (15.1 F) in 2006, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at San Francisco II by year
Year	Coldest night (TNn)
1976	0.6 C (33.1 F)
1977	-3.3 C (26.1 F)
1978	-3.3 C (26.1 F)
1979	0.0 C (32.0 F)
1981	-4.4 C (24.1 F)
1982	1.7 C (35.1 F)
1983	0.6 C (33.1 F)
1984	-2.2 C (28.0 F)
1985	1.7 C (35.1 F)
1986	1.7 C (35.1 F)
1991	-5.0 C (23.0 F)
1992	-3.3 C (26.1 F)
1993	0.0 C (32.0 F)
1994	0.0 C (32.0 F)
1995	-3.3 C (26.1 F)
1996	-3.3 C (26.1 F)
1997	0.0 C (32.0 F)
1998	-7.2 C (19.0 F)
1999	-7.8 C (18.0 F)
2000	-5.0 C (23.0 F)
2001	-5.0 C (23.0 F)
2002	3.3 C (37.9 F)
2003	1.1 C (34.0 F)
2004	6.1 C (43.0 F)
2005	2.8 C (37.0 F)
2006	-9.4 C (15.1 F)
2007	-6.1 C (21.0 F)
2008	-7.2 C (19.0 F)
2009	2.8 C (37.0 F)
2010	3.9 C (39.0 F)
2011	3.9 C (39.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Francisco II, 1976 to 2011. The record is 61.5 mm (2.4 in) in 1984, marked on the chart; the median year is 29.2 mm (1.1 in).

Wettest day (Rx1day) at San Francisco II by year
Year	Wettest day (Rx1day)
1976	42.9 mm (1.7 in)
1977	26.9 mm (1.1 in)
1978	38.9 mm (1.5 in)
1979	43.9 mm (1.7 in)
1981	42.9 mm (1.7 in)
1982	41.4 mm (1.6 in)
1983	30.0 mm (1.2 in)
1984	61.5 mm (2.4 in)
1985	46.5 mm (1.8 in)
1986	26.4 mm (1.0 in)
1991	34.3 mm (1.4 in)
1992	41.1 mm (1.6 in)
1993	39.9 mm (1.6 in)
1994	44.2 mm (1.7 in)
1995	48.5 mm (1.9 in)
1996	31.8 mm (1.3 in)
1997	33.3 mm (1.3 in)
1998	29.2 mm (1.1 in)
1999	12.4 mm (0.5 in)
2000	11.4 mm (0.4 in)
2001	19.3 mm (0.8 in)
2002	20.3 mm (0.8 in)
2003	11.9 mm (0.5 in)
2004	14.0 mm (0.6 in)
2005	9.9 mm (0.39 in)
2006	13.0 mm (0.5 in)
2007	10.9 mm (0.4 in)
2008	7.9 mm (0.31 in)
2009	18.8 mm (0.7 in)
2010	5.8 mm (0.23 in)
2011	10.9 mm (0.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Francisco II, 1976 to 2011. The record is 128.1 mm (5.0 in) in 1984, marked on the chart; the median year is 54.6 mm (2.1 in).

Wettest five days (Rx5day) at San Francisco II by year
Year	Wettest five days (Rx5day)
1976	74.2 mm (2.9 in)
1977	57.7 mm (2.3 in)
1978	88.4 mm (3.5 in)
1979	77.9 mm (3.1 in)
1981	61.8 mm (2.4 in)
1982	94.3 mm (3.7 in)
1983	55.2 mm (2.2 in)
1984	128.1 mm (5.0 in)
1985	67.1 mm (2.6 in)
1986	54.6 mm (2.1 in)
1991	78.8 mm (3.1 in)
1992	56.7 mm (2.2 in)
1993	78.5 mm (3.1 in)
1994	97.9 mm (3.9 in)
1995	73.9 mm (2.9 in)
1996	31.8 mm (1.3 in)
1997	41.2 mm (1.6 in)
1998	56.1 mm (2.2 in)
1999	20.1 mm (0.8 in)
2000	34.0 mm (1.3 in)
2001	45.8 mm (1.8 in)
2002	30.3 mm (1.2 in)
2003	36.8 mm (1.4 in)
2004	28.2 mm (1.1 in)
2005	16.6 mm (0.7 in)
2006	27.7 mm (1.1 in)
2007	26.5 mm (1.0 in)
2008	15.5 mm (0.6 in)
2009	47.3 mm (1.9 in)
2010	12.4 mm (0.5 in)
2011	19.8 mm (0.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Francisco II, 1976 to 2011. The record is 179 days in 1991, marked on the chart; the median year is 65 days.

Longest dry spell (CDD) at San Francisco II by year
Year	Longest dry spell (CDD)
1976	15 days
1977	81 days
1978	73 days
1979	30 days
1981	34 days
1982	43 days
1983	74 days
1984	96 days
1985	82 days
1986	59 days
1991	179 days
1992	38 days
1993	38 days
1994	55 days
1995	92 days
1996	71 days
1997	37 days
1998	113 days
1999	61 days
2000	123 days
2001	61 days
2002	49 days
2003	50 days
2004	26 days
2005	80 days
2006	82 days
2007	56 days
2008	106 days
2009	65 days
2010	104 days
2011	170 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 Francisco II standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Francisco II 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).