Sierra Hermosa Weather Records (MXN00032107)

Record envelope, standing records and threshold days for Sierra Hermosa (MXN00032107), Mexico, with 36 years of record.

Key Facts for Sierra Hermosa

Sierra Hermosa (MXN00032107) is a weather station in Mexico at 23.62 latitude and -101.72 longitude, 2,092 m (6,863 ft) above sea level.
The station reports from 1977 to 2012, 36 years of record.
1,464 records set at Sierra Hermosa still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Sierra Hermosa set a daily record low maximum temperature of 11.7 C (53.1 F) on 31 December 2012.

About the Station

Location: Mexico, 23.62 latitude, -101.72 longitude.
Elevation: 2,092 m (6,863 ft).
Period of record: 1977 to 2012, 36 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 Sierra Hermosa. 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 Sierra Hermosa, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.0 C (77.0 F)	-13.3 C (8.1 F)	n/a	n/a
Feb	27.8 C (82.0 F)	-12.2 C (10.0 F)	n/a	n/a
Mar	30.6 C (87.1 F)	-11.1 C (12.0 F)	n/a	n/a
Apr	32.8 C (91.0 F)	-4.4 C (24.1 F)	n/a	n/a
May	35.0 C (95.0 F)	0.6 C (33.1 F)	n/a	n/a
Jun	35.0 C (95.0 F)	5.6 C (42.1 F)	n/a	n/a
Jul	33.9 C (93.0 F)	5.0 C (41.0 F)	n/a	n/a
Aug	30.6 C (87.1 F)	5.6 C (42.1 F)	n/a	n/a
Sep	30.6 C (87.1 F)	0.0 C (32.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-12.2 C (10.0 F)	n/a	n/a
Dec	27.8 C (82.0 F)	-12.2 C (10.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Sierra Hermosa still stand. 1978 holds the most, with 104.

Standing records at Sierra Hermosa by the year they were set
Year set	Standing records
1977	24
1978	104
1979	104
1980	52
1981	35
1982	82
1983	58
1984	35
1985	32
1986	23
1987	52
1988	44
1989	51
1990	32
1991	28
1992	55
1993	35
1994	34
1995	33
1996	33
1997	49
1998	34
1999	55
2000	31
2001	27
2002	20
2003	34
2004	35
2005	24
2006	34
2008	37
2009	20
2010	42
2011	20
2012	56

Wettest Day of Each Month

Sep: 97.8 mm (3.9 in)

The wettest day on record for each calendar month at Sierra Hermosa. The most was 97.8 mm (3.9 in) on 13 September 2008.

Record daily precipitation for each month at Sierra Hermosa
Month	Record daily precipitation (mm)	Date
Jan	48.8 mm (1.9 in)	30 January 1984
Feb	31.0 mm (1.2 in)	3 February 2010
Mar	24.9 mm (1.0 in)	30 March 2004
Apr	16.8 mm (0.7 in)	13 April 1997
May	80.8 mm (3.2 in)	2 May 1981
Jun	96.3 mm (3.8 in)	9 June 2000
Jul	71.9 mm (2.8 in)	9 July 1988
Aug	74.9 mm (2.9 in)	29 August 1978
Sep	97.8 mm (3.9 in)	13 September 2008
Oct	62.0 mm (2.4 in)	8 October 1992
Nov	33.3 mm (1.3 in)	2 November 1993
Dec	59.9 mm (2.4 in)	2 December 1979

Period of Record Coverage

1977 to 2012

35 years of record at Sierra Hermosa, 1977 to 2012. 7 years have data for under 90 percent of days and are left out of rankings: 1977, 1980, 1981, 1982, 1986, 2002, 2008.

Days with data per year at Sierra Hermosa
Year	Days with data	Share of year	Complete
1977	95	26%	No
1978	365	100%	Yes
1979	365	100%	Yes
1980	245	67%	No
1981	247	68%	No
1982	303	83%	No
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	273	75%	No
1987	334	92%	Yes
1988	336	92%	Yes
1989	335	92%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	335	92%	Yes
1996	366	100%	Yes
1997	363	99%	Yes
1998	334	92%	Yes
1999	365	100%	Yes
2000	362	99%	Yes
2001	334	92%	Yes
2002	276	76%	No
2003	364	100%	Yes
2004	366	100%	Yes
2005	364	100%	Yes
2006	364	100%	Yes
2008	305	83%	No
2009	365	100%	Yes
2010	364	100%	Yes
2011	364	100%	Yes
2012	366	100%	Yes

Latest Records

Latest records at Sierra Hermosa
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 December 2012	Sierra Hermosa, MX	daily low max	11.7 C (53.1 F)	1.1 C (2.0 F)	12 years	9 of 100 (Routine)
24 December 2012	Sierra Hermosa, MX	daily high max (Tie)	23.9 C (75.0 F)	tie	35 years	3 of 100 (Routine)
23 December 2012	Sierra Hermosa, MX	daily high max (Tie)	22.8 C (73.0 F)	tie	29 years	2 of 100 (Routine)
14 December 2012	Sierra Hermosa, MX	monthly high min (Tie)	10.0 C (50.0 F)	tie	20 years	4 of 100 (Routine)
2 December 2012	Sierra Hermosa, MX	daily high max	25.0 C (77.0 F)	1.1 C (2.0 F)	31 years	15 of 100 (Routine)
2 December 2012	Sierra Hermosa, MX	monthly high min (Tie)	10.0 C (50.0 F)	tie	19 years	4 of 100 (Routine)
1 December 2012	Sierra Hermosa, MX	daily high max (Tie)	23.9 C (75.0 F)	tie	34 years	3 of 100 (Routine)
30 November 2012	Sierra Hermosa, MX	daily high max (Tie)	23.9 C (75.0 F)	tie	29 years	2 of 100 (Routine)
29 November 2012	Sierra Hermosa, MX	daily high min	10.0 C (50.0 F)	0.6 C (1.1 F)	34 years	14 of 100 (Routine)
24 November 2012	Sierra Hermosa, MX	daily low max (Tie)	15.6 C (60.1 F)	tie	16 years	1 of 100 (Routine)
23 November 2012	Sierra Hermosa, MX	daily rain	22.9 mm (0.9 in)	22.9 mm (0.9 in)	35 years	20 of 100 (Routine)
20 November 2012	Sierra Hermosa, MX	daily high max (Tie)	23.9 C (75.0 F)	tie	34 years	3 of 100 (Routine)
18 November 2012	Sierra Hermosa, MX	daily high min (Tie)	8.9 C (48.0 F)	tie	34 years	3 of 100 (Routine)
17 November 2012	Sierra Hermosa, MX	daily high min	10.0 C (50.0 F)	2.2 C (4.0 F)	34 years	18 of 100 (Routine)
16 November 2012	Sierra Hermosa, MX	daily high min	10.0 C (50.0 F)	4.4 C (7.9 F)	35 years	24 of 100 (Routine)
15 November 2012	Sierra Hermosa, MX	daily high min	10.0 C (50.0 F)	2.2 C (4.0 F)	30 years	17 of 100 (Routine)
14 November 2012	Sierra Hermosa, MX	daily high min	10.6 C (51.1 F)	2.8 C (5.0 F)	30 years	19 of 100 (Routine)
13 November 2012	Sierra Hermosa, MX	daily high min (Tie)	8.9 C (48.0 F)	tie	20 years	2 of 100 (Routine)
11 November 2012	Sierra Hermosa, MX	daily high max (Tie)	25.0 C (77.0 F)	tie	34 years	3 of 100 (Routine)
1 November 2012	Sierra Hermosa, MX	daily high max	26.7 C (80.1 F)	1.1 C (2.0 F)	33 years	15 of 100 (Routine)

Climate Trend

22 complete years, 1978 to 2012

One stripe for each of 22 complete years at Sierra Hermosa, 1978 to 2012. Blue stripes are years cooler than the station's own mean of 14.3 C (57.7 F); red stripes are warmer. The coolest year was 2010, at 12.9 C (55.1 F), and the warmest was 1979, at 16.0 C (60.8 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Sierra Hermosa as warming stripes, 1978 to 2012
Year	Annual mean temperature	Difference from the station mean
1978	15.8 C	+1.50 C
1979	16.0 C	+1.71 C
1983	15.3 C	+1.02 C
1984	14.7 C	+0.39 C
1985	15.0 C	+0.70 C
1990	14.9 C	+0.65 C
1991	14.7 C	+0.43 C
1992	13.8 C	-0.46 C
1993	14.4 C	+0.08 C
1994	14.6 C	+0.34 C
1996	13.9 C	-0.41 C
1997	13.6 C	-0.72 C
1999	13.8 C	-0.49 C
2000	14.0 C	-0.31 C
2003	13.8 C	-0.47 C
2004	13.2 C	-1.12 C
2005	13.9 C	-0.36 C
2006	13.5 C	-0.78 C
2009	13.8 C	-0.49 C
2010	12.9 C	-1.43 C
2011	13.8 C	-0.51 C
2012	15.0 C	+0.66 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 Sierra Hermosa: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.0 C (95.0 F)	1982	31.7 C (89.1 F)	35
Coldest night (TNn)	-13.3 C (8.1 F)	1997	-7.2 C (19.0 F)	35
Wettest day (Rx1day)	97.8 mm (3.9 in)	2008	36.8 mm (1.4 in)	35
Wettest five days (Rx5day)	149.7 mm (5.9 in)	2000	70.6 mm (2.8 in)	35
Longest dry spell (CDD)	180 days	2011	58 days	35

Hottest day (TXx)

The hottest day of the year at Sierra Hermosa, 1977 to 2012. The record is 35.0 C (95.0 F) in 1982, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Sierra Hermosa by year
Year	Hottest day (TXx)
1977	30.6 C (87.1 F)
1978	33.9 C (93.0 F)
1979	31.7 C (89.1 F)
1980	34.4 C (93.9 F)
1981	30.6 C (87.1 F)
1982	35.0 C (95.0 F)
1983	35.0 C (95.0 F)
1984	30.6 C (87.1 F)
1985	32.8 C (91.0 F)
1986	31.7 C (89.1 F)
1987	31.7 C (89.1 F)
1988	31.7 C (89.1 F)
1989	33.9 C (93.0 F)
1990	33.9 C (93.0 F)
1991	31.7 C (89.1 F)
1992	31.7 C (89.1 F)
1993	33.9 C (93.0 F)
1994	30.6 C (87.1 F)
1995	32.8 C (91.0 F)
1996	33.9 C (93.0 F)
1997	30.6 C (87.1 F)
1998	35.0 C (95.0 F)
1999	32.8 C (91.0 F)
2000	31.7 C (89.1 F)
2001	30.0 C (86.0 F)
2002	32.8 C (91.0 F)
2003	32.8 C (91.0 F)
2004	30.6 C (87.1 F)
2005	33.9 C (93.0 F)
2006	30.0 C (86.0 F)
2008	31.7 C (89.1 F)
2009	30.0 C (86.0 F)
2010	30.6 C (87.1 F)
2011	31.7 C (89.1 F)
2012	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at Sierra Hermosa, 1977 to 2012. The record is -13.3 C (8.1 F) in 1997, marked on the chart; the median year is -7.2 C (19.0 F).

Coldest night (TNn) at Sierra Hermosa by year
Year	Coldest night (TNn)
1977	-3.9 C (25.0 F)
1978	-7.2 C (19.0 F)
1979	-4.4 C (24.1 F)
1980	-4.4 C (24.1 F)
1981	-6.1 C (21.0 F)
1982	-4.4 C (24.1 F)
1983	-5.0 C (23.0 F)
1984	-8.3 C (17.1 F)
1985	-10.0 C (14.0 F)
1986	-6.1 C (21.0 F)
1987	-1.1 C (30.0 F)
1988	0.0 C (32.0 F)
1989	0.0 C (32.0 F)
1990	0.0 C (32.0 F)
1991	-9.4 C (15.1 F)
1992	-6.1 C (21.0 F)
1993	-5.0 C (23.0 F)
1994	-6.1 C (21.0 F)
1995	-7.2 C (19.0 F)
1996	-8.3 C (17.1 F)
1997	-13.3 C (8.1 F)
1998	-12.2 C (10.0 F)
1999	-11.1 C (12.0 F)
2000	-10.0 C (14.0 F)
2001	-9.4 C (15.1 F)
2002	-9.4 C (15.1 F)
2003	-12.2 C (10.0 F)
2004	-11.1 C (12.0 F)
2005	-7.2 C (19.0 F)
2006	-13.3 C (8.1 F)
2008	-11.1 C (12.0 F)
2009	-6.1 C (21.0 F)
2010	-9.4 C (15.1 F)
2011	-12.2 C (10.0 F)
2012	-8.3 C (17.1 F)

Wettest day (Rx1day)

The wettest day of the year at Sierra Hermosa, 1977 to 2012. The record is 97.8 mm (3.9 in) in 2008, marked on the chart; the median year is 36.8 mm (1.4 in).

Wettest day (Rx1day) at Sierra Hermosa by year
Year	Wettest day (Rx1day)
1977	28.4 mm (1.1 in)
1978	74.9 mm (2.9 in)
1979	65.8 mm (2.6 in)
1980	24.9 mm (1.0 in)
1981	80.8 mm (3.2 in)
1982	33.3 mm (1.3 in)
1983	36.8 mm (1.4 in)
1984	48.8 mm (1.9 in)
1985	40.9 mm (1.6 in)
1986	26.9 mm (1.1 in)
1987	36.8 mm (1.4 in)
1988	71.9 mm (2.8 in)
1989	35.8 mm (1.4 in)
1990	21.8 mm (0.9 in)
1991	42.9 mm (1.7 in)
1992	62.0 mm (2.4 in)
1993	34.8 mm (1.4 in)
1994	31.8 mm (1.3 in)
1995	23.4 mm (0.9 in)
1996	39.9 mm (1.6 in)
1997	69.3 mm (2.7 in)
1998	22.4 mm (0.9 in)
1999	29.0 mm (1.1 in)
2000	96.3 mm (3.8 in)
2001	22.4 mm (0.9 in)
2002	57.9 mm (2.3 in)
2003	62.0 mm (2.4 in)
2004	35.8 mm (1.4 in)
2005	24.9 mm (1.0 in)
2006	39.9 mm (1.6 in)
2008	97.8 mm (3.9 in)
2009	31.0 mm (1.2 in)
2010	54.9 mm (2.2 in)
2011	42.9 mm (1.7 in)
2012	22.9 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sierra Hermosa, 1977 to 2012. The record is 149.7 mm (5.9 in) in 2000, marked on the chart; the median year is 70.6 mm (2.8 in).

Wettest five days (Rx5day) at Sierra Hermosa by year
Year	Wettest five days (Rx5day)
1977	30.7 mm (1.2 in)
1978	75.7 mm (3.0 in)
1979	70.6 mm (2.8 in)
1980	30.3 mm (1.2 in)
1981	110.8 mm (4.4 in)
1982	42.0 mm (1.7 in)
1983	74.2 mm (2.9 in)
1984	107.2 mm (4.2 in)
1985	61.8 mm (2.4 in)
1986	42.5 mm (1.7 in)
1987	74.7 mm (2.9 in)
1988	81.6 mm (3.2 in)
1989	71.6 mm (2.8 in)
1990	43.0 mm (1.7 in)
1991	114.6 mm (4.5 in)
1992	80.1 mm (3.2 in)
1993	49.5 mm (1.9 in)
1994	48.5 mm (1.9 in)
1995	43.1 mm (1.7 in)
1996	71.5 mm (2.8 in)
1997	98.0 mm (3.9 in)
1998	22.4 mm (0.9 in)
1999	29.3 mm (1.2 in)
2000	149.7 mm (5.9 in)
2001	25.9 mm (1.0 in)
2002	71.9 mm (2.8 in)
2003	79.0 mm (3.1 in)
2004	59.7 mm (2.4 in)
2005	46.8 mm (1.8 in)
2006	61.3 mm (2.4 in)
2008	121.7 mm (4.8 in)
2009	71.7 mm (2.8 in)
2010	132.5 mm (5.2 in)
2011	55.6 mm (2.2 in)
2012	29.8 mm (1.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sierra Hermosa, 1977 to 2012. The record is 180 days in 2011, marked on the chart; the median year is 58 days.

Longest dry spell (CDD) at Sierra Hermosa by year
Year	Longest dry spell (CDD)
1977	41 days
1978	57 days
1979	94 days
1980	51 days
1981	33 days
1982	80 days
1983	57 days
1984	74 days
1985	55 days
1986	77 days
1987	58 days
1988	53 days
1989	51 days
1990	58 days
1991	91 days
1992	59 days
1993	78 days
1994	56 days
1995	142 days
1996	88 days
1997	36 days
1998	117 days
1999	84 days
2000	81 days
2001	58 days
2002	57 days
2003	66 days
2004	47 days
2005	44 days
2006	72 days
2008	50 days
2009	53 days
2010	95 days
2011	180 days
2012	37 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

22 years with a frost

Across 22 years with a frost, the median last spring frost at Sierra Hermosa falls on 2 April and the median first autumn frost on 3 November, which leaves a median of 214 days between them.

Frost dates and growing season at Sierra Hermosa
Measure	Median, all years	Earliest period	Recent period (1978 to 2012)	Recent against earliest	Fitted trend
Last spring frost	2 April	n/a	2 April	n/a	n/a
First autumn frost	3 November	n/a	3 November	n/a	n/a
Growing days	214 days	n/a	214 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 Sierra Hermosa standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sierra Hermosa 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).