Guaname Weather Records (MXN00024150)

Record envelope, standing records and threshold days for Guaname (MXN00024150), Mexico, with 35 years of record.

Key Facts for Guaname

Guaname (MXN00024150) is a weather station in Mexico at 22.85 latitude and -101.23 longitude, 1,944 m (6,377 ft) above sea level.
The station reports from 1977 to 2011, 35 years of record.
1,464 records set at Guaname still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Guaname tied a daily record high minimum temperature of 15.0 C (59.0 F) on 31 May 2011.

About the Station

Location: Mexico, 22.85 latitude, -101.23 longitude.
Elevation: 1,944 m (6,377 ft).
Period of record: 1977 to 2011, 35 years.
Eligible elements: tmax, tmin.

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 Guaname. 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 Guaname, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.6 C (96.1 F)	-8.3 C (17.1 F)	n/a	n/a
Feb	35.0 C (95.0 F)	-4.4 C (24.1 F)	n/a	n/a
Mar	38.9 C (102.0 F)	-4.4 C (24.1 F)	n/a	n/a
Apr	40.0 C (104.0 F)	-5.0 C (23.0 F)	n/a	n/a
May	42.8 C (109.0 F)	1.7 C (35.1 F)	n/a	n/a
Jun	42.8 C (109.0 F)	0.6 C (33.1 F)	n/a	n/a
Jul	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	37.8 C (100.0 F)	0.6 C (33.1 F)	n/a	n/a
Sep	37.8 C (100.0 F)	0.6 C (33.1 F)	n/a	n/a
Oct	38.9 C (102.0 F)	-2.8 C (27.0 F)	n/a	n/a
Nov	33.9 C (93.0 F)	-4.4 C (24.1 F)	n/a	n/a
Dec	35.0 C (95.0 F)	-6.1 C (21.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Guaname still stand. 1998 holds the most, with 221.

Standing records at Guaname by the year they were set
Year set	Standing records
1977	17
1978	42
1979	12
1980	31
1981	34
1982	10
1983	28
1984	20
1985	18
1986	41
1987	59
1991	159
1992	57
1993	68
1994	61
1995	66
1996	107
1997	46
1998	221
1999	41
2000	24
2001	23
2002	33
2003	59
2004	49
2005	10
2006	25
2007	23
2008	26
2009	16
2010	29
2011	9

Wettest Day of Each Month

May: 135.9 mm (5.4 in)

The wettest day on record for each calendar month at Guaname. The most was 135.9 mm (5.4 in) on 15 May 1992.

Record daily precipitation for each month at Guaname
Month	Record daily precipitation (mm)	Date
Jan	79.8 mm (3.1 in)	28 January 1992
Feb	75.4 mm (3.0 in)	3 February 1992
Mar	51.8 mm (2.0 in)	27 March 1992
Apr	45.0 mm (1.8 in)	16 April 1992
May	135.9 mm (5.4 in)	15 May 1992
Jun	68.8 mm (2.7 in)	23 June 1994
Jul	79.8 mm (3.1 in)	11 July 2002
Aug	64.8 mm (2.6 in)	17 August 2008
Sep	110.0 mm (4.3 in)	5 September 2009
Oct	64.8 mm (2.6 in)	8 October 1998
Nov	45.0 mm (1.8 in)	6 November 1991
Dec	39.9 mm (1.6 in)	2 December 1979

Period of Record Coverage

1977 to 2011

32 years of record at Guaname, 1977 to 2011. 14 years have data for under 90 percent of days and are left out of rankings: 1977, 1980, 1981, 1982, 1986, 1991, 1992, 1993 and others.

Days with data per year at Guaname
Year	Days with data	Share of year	Complete
1977	214	59%	No
1978	365	100%	Yes
1979	365	100%	Yes
1980	245	67%	No
1981	247	68%	No
1982	273	75%	No
1983	364	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	273	75%	No
1987	334	92%	Yes
1991	286	78%	No
1992	329	90%	No
1993	302	83%	No
1994	357	98%	Yes
1995	324	89%	No
1996	359	98%	Yes
1997	180	49%	No
1998	362	99%	Yes
1999	361	99%	Yes
2000	364	99%	Yes
2001	365	100%	Yes
2002	363	99%	Yes
2003	310	85%	No
2004	301	82%	No
2005	365	100%	Yes
2006	363	99%	Yes
2007	333	91%	Yes
2008	338	92%	Yes
2009	364	100%	Yes
2010	271	74%	No
2011	172	47%	No

Latest Records

Latest records at Guaname
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 2011	Guaname, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	24 years	2 of 100 (Routine)
7 May 2011	Guaname, MX	daily low max	20.0 C (68.0 F)	5.0 C (9.0 F)	24 years	22 of 100 (Routine)
6 May 2011	Guaname, MX	daily high min	15.6 C (60.1 F)	1.7 C (3.1 F)	24 years	15 of 100 (Routine)
5 May 2011	Guaname, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	16 years	2 of 100 (Routine)
29 April 2011	Guaname, MX	daily high max (Tie)	33.9 C (93.0 F)	tie	12 years	1 of 100 (Routine)
28 April 2011	Guaname, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	16 years	2 of 100 (Routine)
28 March 2011	Guaname, MX	daily low min (Tie)	1.7 C (35.1 F)	tie	12 years	1 of 100 (Routine)
26 March 2011	Guaname, MX	daily low min (Tie)	1.7 C (35.1 F)	tie	12 years	1 of 100 (Routine)
24 March 2011	Guaname, MX	daily low max	20.0 C (68.0 F)	0.6 C (1.1 F)	24 years	11 of 100 (Routine)
24 March 2011	Guaname, MX	daily low min	0.0 C (32.0 F)	1.7 C (3.1 F)	12 years	10 of 100 (Routine)
23 March 2011	Guaname, MX	daily low min (Tie)	0.6 C (33.1 F)	tie	13 years	1 of 100 (Routine)
11 March 2011	Guaname, MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	32 years	13 of 100 (Routine)
4 March 2011	Guaname, MX	daily low min (Tie)	1.7 C (35.1 F)	tie	28 years	2 of 100 (Routine)
25 February 2011	Guaname, MX	daily high max (Tie)	30.0 C (86.0 F)	tie	15 years	1 of 100 (Routine)
18 February 2011	Guaname, MX	daily low min (Tie)	0.6 C (33.1 F)	tie	12 years	1 of 100 (Routine)
17 February 2011	Guaname, MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	28 years	12 of 100 (Routine)
13 February 2011	Guaname, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	11 years	1 of 100 (Routine)
6 February 2011	Guaname, MX	daily low min	-2.2 C (28.0 F)	2.8 C (5.0 F)	32 years	19 of 100 (Routine)
29 January 2011	Guaname, MX	daily low min	-1.1 C (30.0 F)	1.7 C (3.1 F)	28 years	15 of 100 (Routine)
22 January 2011	Guaname, MX	daily high max (Tie)	27.8 C (82.0 F)	tie	20 years	2 of 100 (Routine)

Climate Trend

14 complete years, 1978 to 2009

One stripe for each of 14 complete years at Guaname, 1978 to 2009. Blue stripes are years cooler than the station's own mean of 17.0 C (62.6 F); red stripes are warmer. The coolest year was 1978, at 15.2 C (59.3 F), and the warmest was 1998, at 19.3 C (66.8 F). The strongest colour marks a difference of 2.4 C (4.3 F).

Annual mean temperature at Guaname as warming stripes, 1978 to 2009
Year	Annual mean temperature	Difference from the station mean
1978	15.2 C	-1.83 C
1979	16.3 C	-0.65 C
1983	16.4 C	-0.61 C
1984	16.0 C	-1.02 C
1985	15.7 C	-1.25 C
1994	18.7 C	+1.73 C
1996	17.2 C	+0.20 C
1998	19.3 C	+2.34 C
2000	17.2 C	+0.23 C
2001	17.5 C	+0.49 C
2002	17.4 C	+0.39 C
2005	17.1 C	+0.13 C
2006	16.6 C	-0.42 C
2009	17.2 C	+0.22 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 2011

Yearly extremes at Guaname: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1998	35.3 C (95.5 F)	32
Coldest night (TNn)	-8.3 C (17.1 F)	2001	-3.3 C (26.1 F)	32
Wettest day (Rx1day)	135.9 mm (5.4 in)	1992	43.0 mm (1.7 in)	32
Wettest five days (Rx5day)	373.6 mm (14.7 in)	1992	70.2 mm (2.8 in)	32
Longest dry spell (CDD)	216 days	1998	71 days	32

Hottest day (TXx)

The hottest day of the year at Guaname, 1977 to 2011. The record is 42.8 C (109.0 F) in 1998, marked on the chart; the median year is 35.3 C (95.5 F).

Hottest day (TXx) at Guaname by year
Year	Hottest day (TXx)
1977	30.0 C (86.0 F)
1978	32.8 C (91.0 F)
1979	32.8 C (91.0 F)
1980	32.8 C (91.0 F)
1981	34.4 C (93.9 F)
1982	36.7 C (98.1 F)
1983	35.6 C (96.1 F)
1984	31.7 C (89.1 F)
1985	30.6 C (87.1 F)
1986	36.7 C (98.1 F)
1987	30.6 C (87.1 F)
1991	30.6 C (87.1 F)
1992	38.9 C (102.0 F)
1993	38.9 C (102.0 F)
1994	38.9 C (102.0 F)
1995	37.8 C (100.0 F)
1996	37.8 C (100.0 F)
1997	35.6 C (96.1 F)
1998	42.8 C (109.0 F)
1999	35.6 C (96.1 F)
2000	35.0 C (95.0 F)
2001	36.7 C (98.1 F)
2002	36.7 C (98.1 F)
2003	37.8 C (100.0 F)
2004	35.6 C (96.1 F)
2005	33.9 C (93.0 F)
2006	35.0 C (95.0 F)
2007	32.8 C (91.0 F)
2008	35.0 C (95.0 F)
2009	35.0 C (95.0 F)
2010	35.0 C (95.0 F)
2011	35.6 C (96.1 F)

Coldest night (TNn)

The coldest night of the year at Guaname, 1977 to 2011. The record is -8.3 C (17.1 F) in 2001, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at Guaname by year
Year	Coldest night (TNn)
1977	-4.4 C (24.1 F)
1978	-3.3 C (26.1 F)
1979	-4.4 C (24.1 F)
1980	-3.3 C (26.1 F)
1981	-1.1 C (30.0 F)
1982	0.6 C (33.1 F)
1983	0.6 C (33.1 F)
1984	-2.2 C (28.0 F)
1985	-3.3 C (26.1 F)
1986	2.8 C (37.0 F)
1987	0.0 C (32.0 F)
1991	0.0 C (32.0 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1994	0.6 C (33.1 F)
1995	0.0 C (32.0 F)
1996	0.0 C (32.0 F)
1997	-5.0 C (23.0 F)
1998	-1.1 C (30.0 F)
1999	-3.3 C (26.1 F)
2000	-5.0 C (23.0 F)
2001	-8.3 C (17.1 F)
2002	-4.4 C (24.1 F)
2003	-4.4 C (24.1 F)
2004	-6.1 C (21.0 F)
2005	-2.2 C (28.0 F)
2006	-4.4 C (24.1 F)
2007	-4.4 C (24.1 F)
2008	-4.4 C (24.1 F)
2009	-3.3 C (26.1 F)
2010	-3.3 C (26.1 F)
2011	-2.2 C (28.0 F)

Wettest day (Rx1day)

The wettest day of the year at Guaname, 1977 to 2011. The record is 135.9 mm (5.4 in) in 1992, marked on the chart; the median year is 43.0 mm (1.7 in).

Wettest day (Rx1day) at Guaname by year
Year	Wettest day (Rx1day)
1977	33.8 mm (1.3 in)
1978	69.9 mm (2.8 in)
1979	40.4 mm (1.6 in)
1980	22.9 mm (0.9 in)
1981	47.5 mm (1.9 in)
1982	59.9 mm (2.4 in)
1983	39.9 mm (1.6 in)
1984	63.2 mm (2.5 in)
1985	47.0 mm (1.9 in)
1986	40.9 mm (1.6 in)
1987	18.8 mm (0.7 in)
1991	74.9 mm (2.9 in)
1992	135.9 mm (5.4 in)
1993	17.8 mm (0.7 in)
1994	68.8 mm (2.7 in)
1995	62.5 mm (2.5 in)
1996	39.9 mm (1.6 in)
1997	25.9 mm (1.0 in)
1998	64.8 mm (2.6 in)
1999	39.9 mm (1.6 in)
2000	24.9 mm (1.0 in)
2001	30.0 mm (1.2 in)
2002	79.8 mm (3.1 in)
2003	26.9 mm (1.1 in)
2004	45.0 mm (1.8 in)
2005	32.8 mm (1.3 in)
2006	35.8 mm (1.4 in)
2007	47.0 mm (1.9 in)
2008	64.8 mm (2.6 in)
2009	110.0 mm (4.3 in)
2010	45.0 mm (1.8 in)
2011	37.8 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Guaname, 1977 to 2011. The record is 373.6 mm (14.7 in) in 1992, marked on the chart; the median year is 70.2 mm (2.8 in).

Wettest five days (Rx5day) at Guaname by year
Year	Wettest five days (Rx5day)
1977	86.1 mm (3.4 in)
1978	69.9 mm (2.8 in)
1979	80.5 mm (3.2 in)
1980	34.1 mm (1.3 in)
1981	57.9 mm (2.3 in)
1982	70.5 mm (2.8 in)
1983	80.8 mm (3.2 in)
1984	90.2 mm (3.6 in)
1985	69.6 mm (2.7 in)
1986	82.5 mm (3.2 in)
1987	54.4 mm (2.1 in)
1991	166.9 mm (6.6 in)
1992	373.6 mm (14.7 in)
1993	29.0 mm (1.1 in)
1994	82.8 mm (3.3 in)
1995	120.2 mm (4.7 in)
1996	74.4 mm (2.9 in)
1997	54.4 mm (2.1 in)
1998	73.7 mm (2.9 in)
1999	39.9 mm (1.6 in)
2000	24.9 mm (1.0 in)
2001	49.8 mm (2.0 in)
2002	103.4 mm (4.1 in)
2003	37.1 mm (1.5 in)
2004	99.1 mm (3.9 in)
2005	44.5 mm (1.8 in)
2006	60.8 mm (2.4 in)
2007	64.5 mm (2.5 in)
2008	173.5 mm (6.8 in)
2009	160.3 mm (6.3 in)
2010	54.2 mm (2.1 in)
2011	40.9 mm (1.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Guaname, 1977 to 2011. The record is 216 days in 1998, marked on the chart; the median year is 71 days.

Longest dry spell (CDD) at Guaname by year
Year	Longest dry spell (CDD)
1977	42 days
1978	75 days
1979	63 days
1980	65 days
1981	63 days
1982	60 days
1983	74 days
1984	52 days
1985	70 days
1986	111 days
1987	52 days
1991	90 days
1992	71 days
1993	41 days
1994	44 days
1995	147 days
1996	54 days
1997	29 days
1998	216 days
1999	131 days
2000	95 days
2001	99 days
2002	52 days
2003	79 days
2004	81 days
2005	99 days
2006	60 days
2007	55 days
2008	99 days
2009	62 days
2010	82 days
2011	128 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 Guaname standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Guaname 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).