Cienega de Flores Weather Records (MXN00019012)

Record envelope, standing records and threshold days for Cienega de Flores (MXN00019012), Mexico, with 71 years of record.

Key Facts for Cienega de Flores

Cienega de Flores (MXN00019012) is a weather station in Mexico at 25.95 latitude and -100.17 longitude, 380 m (1,246 ft) above sea level.
The station reports from 1941 to 2011, 71 years of record.
1,464 records set at Cienega de Flores still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Cienega de Flores set a daily record low minimum temperature of -2.2 C (28.0 F) on 28 November 2011.

About the Station

Location: Mexico, 25.95 latitude, -100.17 longitude.
Elevation: 380 m (1,246 ft).
Period of record: 1941 to 2011, 71 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 Cienega de Flores. 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 Cienega de Flores, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	40.6 C (105.1 F)	-12.2 C (10.0 F)	n/a	n/a
Feb	40.6 C (105.1 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	45.6 C (114.1 F)	-2.2 C (28.0 F)	n/a	n/a
Apr	45.0 C (113.0 F)	1.1 C (34.0 F)	n/a	n/a
May	46.1 C (115.0 F)	6.7 C (44.1 F)	n/a	n/a
Jun	47.8 C (118.0 F)	11.7 C (53.1 F)	n/a	n/a
Jul	42.8 C (109.0 F)	15.0 C (59.0 F)	n/a	n/a
Aug	43.9 C (111.0 F)	15.6 C (60.1 F)	n/a	n/a
Sep	43.3 C (109.9 F)	6.7 C (44.1 F)	n/a	n/a
Oct	40.6 C (105.1 F)	-1.1 C (30.0 F)	n/a	n/a
Nov	40.6 C (105.1 F)	-3.3 C (26.1 F)	n/a	n/a
Dec	40.6 C (105.1 F)	-7.2 C (19.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Cienega de Flores still stand. 1979 holds the most, with 53.

Standing records at Cienega de Flores by the year they were set
Year set	Standing records
1942	8
1943	37
1944	28
1945	31
1946	17
1947	39
1948	32
1949	37
1950	35
1951	40
1952	25
1953	29
1954	15
1955	29
1956	14
1957	25
1958	13
1959	30
1960	26
1961	27
1962	10
1963	19
1964	16
1965	21
1966	22
1967	22
1968	12
1969	16
1970	31
1971	20
1972	19
1973	35
1974	31
1975	17
1976	39
1977	5
1978	22
1979	53
1980	19
1981	11
1982	14
1983	12
1984	7
1985	13
1986	20
1987	19
1988	9
1989	19
1990	5
1991	28
1992	25
1993	14
1994	17
1995	18
1996	25
1997	18
1998	25
1999	9
2000	27
2001	8
2002	7
2003	10
2004	15
2005	10
2006	15
2008	22
2009	20
2010	15
2011	41

Wettest Day of Each Month

Aug: 254.8 mm (10.0 in)

The wettest day on record for each calendar month at Cienega de Flores. The most was 254.8 mm (10.0 in) on 24 August 1953.

Record daily precipitation for each month at Cienega de Flores
Month	Record daily precipitation (mm)	Date
Jan	48.8 mm (1.9 in)	21 January 1994
Feb	38.6 mm (1.5 in)	14 February 1959
Mar	110.2 mm (4.3 in)	22 March 1967
Apr	63.5 mm (2.5 in)	15 April 1981
May	92.2 mm (3.6 in)	18 May 1954
Jun	108.0 mm (4.3 in)	30 June 2010
Jul	165.9 mm (6.5 in)	20 July 2005
Aug	254.8 mm (10.0 in)	24 August 1953
Sep	205.0 mm (8.1 in)	21 September 1967
Oct	142.7 mm (5.6 in)	20 October 1962
Nov	59.9 mm (2.4 in)	16 November 1976
Dec	61.0 mm (2.4 in)	1 December 2006

Period of Record Coverage

1942 to 2011

69 years of record at Cienega de Flores, 1942 to 2011. 10 years have data for under 90 percent of days and are left out of rankings: 1942, 1950, 1984, 1985, 1989, 1990, 1999, 2005 and others.

Days with data per year at Cienega de Flores
Year	Days with data	Share of year	Complete
1942	117	32%	No
1943	359	98%	Yes
1944	364	99%	Yes
1945	362	99%	Yes
1946	359	98%	Yes
1947	363	99%	Yes
1948	360	98%	Yes
1949	359	98%	Yes
1950	299	82%	No
1951	363	99%	Yes
1952	364	99%	Yes
1953	363	99%	Yes
1954	364	100%	Yes
1955	360	99%	Yes
1956	363	99%	Yes
1957	361	99%	Yes
1958	359	98%	Yes
1959	362	99%	Yes
1960	358	98%	Yes
1961	363	99%	Yes
1962	357	98%	Yes
1963	356	98%	Yes
1964	331	90%	Yes
1965	364	100%	Yes
1966	362	99%	Yes
1967	334	92%	Yes
1968	361	99%	Yes
1969	356	98%	Yes
1970	362	99%	Yes
1971	364	100%	Yes
1972	359	98%	Yes
1973	361	99%	Yes
1974	361	99%	Yes
1975	363	99%	Yes
1976	359	98%	Yes
1977	363	99%	Yes
1978	359	98%	Yes
1979	363	99%	Yes
1980	353	96%	Yes
1981	361	99%	Yes
1982	362	99%	Yes
1983	346	95%	Yes
1984	149	41%	No
1985	301	82%	No
1986	363	99%	Yes
1987	363	99%	Yes
1988	356	97%	Yes
1989	316	87%	No
1990	176	48%	No
1991	360	99%	Yes
1992	358	98%	Yes
1993	358	98%	Yes
1994	350	96%	Yes
1995	352	96%	Yes
1996	351	96%	Yes
1997	334	92%	Yes
1998	347	95%	Yes
1999	313	86%	No
2000	342	93%	Yes
2001	339	93%	Yes
2002	346	95%	Yes
2003	344	94%	Yes
2004	348	95%	Yes
2005	244	67%	No
2006	348	95%	Yes
2008	345	94%	Yes
2009	326	89%	No
2010	333	91%	Yes
2011	327	90%	No

Latest Records

Latest records at Cienega de Flores
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 November 2011	Cienega de Flores, MX	daily low min	-2.2 C (28.0 F)	1.1 C (2.0 F)	52 years	24 of 100 (Routine)
22 November 2011	Cienega de Flores, MX	daily high min (Tie)	21.1 C (70.0 F)	tie	16 years	3 of 100 (Routine)
21 November 2011	Cienega de Flores, MX	daily high min	20.0 C (68.0 F)	1.1 C (2.0 F)	68 years	29 of 100 (Routine)
8 November 2011	Cienega de Flores, MX	daily high max	38.9 C (102.0 F)	2.2 C (4.0 F)	30 years	19 of 100 (Routine)
4 November 2011	Cienega de Flores, MX	daily low min (Tie)	1.7 C (35.1 F)	tie	44 years	5 of 100 (Routine)
29 September 2011	Cienega de Flores, MX	daily high max	40.0 C (104.0 F)	3.3 C (5.9 F)	60 years	33 of 100 (Routine)
29 September 2011	Cienega de Flores, MX	daily rain	47.8 mm (1.9 in)	7.9 mm (0.31 in)	12 years	13 of 100 (Routine)
28 September 2011	Cienega de Flores, MX	daily high max	40.6 C (105.1 F)	1.7 C (3.1 F)	52 years	26 of 100 (Routine)
27 September 2011	Cienega de Flores, MX	daily high max	40.0 C (104.0 F)	1.1 C (2.0 F)	57 years	26 of 100 (Routine)
26 September 2011	Cienega de Flores, MX	daily high max	42.8 C (109.0 F)	2.2 C (4.0 F)	52 years	27 of 100 (Routine)
25 September 2011	Cienega de Flores, MX	daily high max	41.7 C (107.1 F)	2.8 C (5.0 F)	52 years	29 of 100 (Routine)
24 September 2011	Cienega de Flores, MX	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	54 years	25 of 100 (Routine)
14 September 2011	Cienega de Flores, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	60 years	6 of 100 (Routine)
12 September 2011	Cienega de Flores, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	65 years	6 of 100 (Routine)
9 September 2011	Cienega de Flores, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	60 years	6 of 100 (Routine)
8 September 2011	Cienega de Flores, MX	daily low min (Tie)	12.8 C (55.0 F)	tie	36 years	4 of 100 (Routine)
7 September 2011	Cienega de Flores, MX	daily low min	12.8 C (55.0 F)	1.1 C (2.0 F)	36 years	21 of 100 (Routine)
5 September 2011	Cienega de Flores, MX	monthly high min (Tie)	26.1 C (79.0 F)	tie	14 years	5 of 100 (Routine)
4 September 2011	Cienega de Flores, MX	daily high max	40.6 C (105.1 F)	1.2 C (2.2 F)	10 years	13 of 100 (Routine)
4 September 2011	Cienega de Flores, MX	daily high min	25.0 C (77.0 F)	0.6 C (1.1 F)	18 years	13 of 100 (Routine)

Climate Trend

46 complete years, 1943 to 2006

One stripe for each of 46 complete years at Cienega de Flores, 1943 to 2006. Blue stripes are years cooler than the station's own mean of 22.2 C (71.9 F); red stripes are warmer. The coolest year was 1976, at 20.1 C (68.2 F), and the warmest was 2006, at 23.4 C (74.0 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Cienega de Flores as warming stripes, 1943 to 2006
Year	Annual mean temperature	Difference from the station mean
1943	23.1 C	+0.91 C
1944	22.5 C	+0.36 C
1945	23.0 C	+0.82 C
1946	23.2 C	+1.05 C
1947	22.6 C	+0.42 C
1948	22.7 C	+0.55 C
1949	23.3 C	+1.13 C
1951	22.7 C	+0.57 C
1952	22.7 C	+0.50 C
1953	23.2 C	+1.07 C
1954	23.3 C	+1.09 C
1955	22.9 C	+0.69 C
1956	23.2 C	+1.04 C
1957	23.0 C	+0.79 C
1958	21.9 C	-0.22 C
1959	21.6 C	-0.57 C
1960	22.2 C	+0.04 C
1961	21.7 C	-0.43 C
1962	22.7 C	+0.52 C
1963	22.0 C	-0.12 C
1965	22.0 C	-0.18 C
1966	20.2 C	-1.93 C
1968	20.2 C	-1.96 C
1969	21.6 C	-0.57 C
1970	20.5 C	-1.65 C
1971	21.3 C	-0.88 C
1972	21.1 C	-1.07 C
1973	20.1 C	-2.05 C
1974	21.0 C	-1.14 C
1975	21.3 C	-0.86 C
1976	20.1 C	-2.06 C
1977	21.4 C	-0.76 C
1978	21.3 C	-0.87 C
1979	21.1 C	-1.03 C
1980	23.0 C	+0.79 C
1981	22.3 C	+0.15 C
1982	23.0 C	+0.79 C
1986	23.2 C	+1.03 C
1987	21.4 C	-0.81 C
1988	22.1 C	-0.05 C
1991	23.2 C	+1.05 C
1992	22.5 C	+0.30 C
1993	22.3 C	+0.13 C
1994	23.3 C	+1.15 C
2000	23.1 C	+0.98 C
2006	23.4 C	+1.19 C

The fitted trend in annual mean temperature here over 1943 to 2006 is -0.1 C (-0.3 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.5 to 0.2) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Cienega de Flores
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.1 C (-0.3 to 0.1) per decade	-0.1 F (-0.5 to 0.2) per decade	1943 to 2006	46	Not clearly different from zero
Mean daily maximum	-0.3 C (-0.6 to -0.1) per decade	-0.6 F (-1.0 to -0.1) per decade	1943 to 2006	46	Fall
Mean daily minimum	0.16 C (0.01 to 0.31) per decade	0.28 F (0.01 to 0.56) per decade	1943 to 2006	46	Rise

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

1941 to 2011

Yearly extremes at Cienega de Flores: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.8 C (118.0 F)	1945	42.8 C (109.0 F)	69
Coldest night (TNn)	-12.2 C (10.0 F)	1962	-2.2 C (28.0 F)	69
Wettest day (Rx1day)	254.8 mm (10.0 in)	1953	69.0 mm (2.7 in)	70
Wettest five days (Rx5day)	459.3 mm (18.1 in)	1953	115.0 mm (4.5 in)	70
Longest dry spell (CDD)	124 days	1991	39 days	70

Hottest day (TXx)

The hottest day of the year at Cienega de Flores, 1941 to 2011. The record is 47.8 C (118.0 F) in 1945, marked on the chart; the median year is 42.8 C (109.0 F).

Hottest day (TXx) at Cienega de Flores by year
Year	Hottest day (TXx)
1941	n/a
1942	38.3 C (100.9 F)
1943	42.2 C (108.0 F)
1944	41.7 C (107.1 F)
1945	47.8 C (118.0 F)
1946	43.9 C (111.0 F)
1947	41.7 C (107.1 F)
1948	43.9 C (111.0 F)
1949	45.0 C (113.0 F)
1950	45.0 C (113.0 F)
1951	42.8 C (109.0 F)
1952	43.9 C (111.0 F)
1953	43.9 C (111.0 F)
1954	45.6 C (114.1 F)
1955	45.6 C (114.1 F)
1956	42.8 C (109.0 F)
1957	45.0 C (113.0 F)
1958	43.9 C (111.0 F)
1959	41.7 C (107.1 F)
1960	42.8 C (109.0 F)
1961	41.7 C (107.1 F)
1962	42.8 C (109.0 F)
1963	43.9 C (111.0 F)
1964	41.7 C (107.1 F)
1965	41.7 C (107.1 F)
1966	38.9 C (102.0 F)
1967	41.7 C (107.1 F)
1968	38.9 C (102.0 F)
1969	42.8 C (109.0 F)
1970	40.6 C (105.1 F)
1971	41.7 C (107.1 F)
1972	41.7 C (107.1 F)
1973	45.0 C (113.0 F)
1974	43.9 C (111.0 F)
1975	41.7 C (107.1 F)
1976	40.0 C (104.0 F)
1977	40.0 C (104.0 F)
1978	42.8 C (109.0 F)
1979	45.6 C (114.1 F)
1980	41.7 C (107.1 F)
1981	40.6 C (105.1 F)
1982	42.8 C (109.0 F)
1983	42.8 C (109.0 F)
1984	45.0 C (113.0 F)
1985	40.6 C (105.1 F)
1986	42.2 C (108.0 F)
1987	38.9 C (102.0 F)
1988	42.8 C (109.0 F)
1989	42.2 C (108.0 F)
1990	38.9 C (102.0 F)
1991	44.4 C (111.9 F)
1992	43.3 C (109.9 F)
1993	40.0 C (104.0 F)
1994	40.6 C (105.1 F)
1995	45.0 C (113.0 F)
1996	41.7 C (107.1 F)
1997	40.6 C (105.1 F)
1998	46.1 C (115.0 F)
1999	43.9 C (111.0 F)
2000	43.3 C (109.9 F)
2001	41.7 C (107.1 F)
2002	45.0 C (113.0 F)
2003	45.0 C (113.0 F)
2004	41.1 C (106.0 F)
2005	43.3 C (109.9 F)
2006	42.8 C (109.0 F)
2008	44.4 C (111.9 F)
2009	43.9 C (111.0 F)
2010	41.1 C (106.0 F)
2011	45.0 C (113.0 F)

Coldest night (TNn)

The coldest night of the year at Cienega de Flores, 1941 to 2011. The record is -12.2 C (10.0 F) in 1962, marked on the chart; the median year is -2.2 C (28.0 F).

Coldest night (TNn) at Cienega de Flores by year
Year	Coldest night (TNn)
1941	n/a
1942	0.6 C (33.1 F)
1943	-1.1 C (30.0 F)
1944	-2.2 C (28.0 F)
1945	-0.6 C (30.9 F)
1946	-2.2 C (28.0 F)
1947	-2.2 C (28.0 F)
1948	-7.2 C (19.0 F)
1949	-7.2 C (19.0 F)
1950	-4.4 C (24.1 F)
1951	-9.4 C (15.1 F)
1952	0.0 C (32.0 F)
1953	-4.4 C (24.1 F)
1954	-1.1 C (30.0 F)
1955	-4.4 C (24.1 F)
1956	-2.2 C (28.0 F)
1957	-3.3 C (26.1 F)
1958	-2.2 C (28.0 F)
1959	-2.2 C (28.0 F)
1960	-3.3 C (26.1 F)
1961	-2.8 C (27.0 F)
1962	-12.2 C (10.0 F)
1963	-5.0 C (23.0 F)
1964	-3.3 C (26.1 F)
1965	-1.1 C (30.0 F)
1966	-6.1 C (21.0 F)
1967	-4.4 C (24.1 F)
1968	-2.2 C (28.0 F)
1969	-3.3 C (26.1 F)
1970	-4.4 C (24.1 F)
1971	-2.2 C (28.0 F)
1972	-2.2 C (28.0 F)
1973	-7.2 C (19.0 F)
1974	-3.3 C (26.1 F)
1975	-7.2 C (19.0 F)
1976	-3.3 C (26.1 F)
1977	-1.1 C (30.0 F)
1978	-5.0 C (23.0 F)
1979	-3.3 C (26.1 F)
1980	-1.1 C (30.0 F)
1981	0.0 C (32.0 F)
1982	-3.3 C (26.1 F)
1983	1.7 C (35.1 F)
1984	0.0 C (32.0 F)
1985	-6.1 C (21.0 F)
1986	-1.7 C (28.9 F)
1987	0.0 C (32.0 F)
1988	0.0 C (32.0 F)
1989	-2.2 C (28.0 F)
1990	-2.2 C (28.0 F)
1991	-1.1 C (30.0 F)
1992	-1.1 C (30.0 F)
1993	-1.1 C (30.0 F)
1994	-3.3 C (26.1 F)
1995	0.6 C (33.1 F)
1996	-4.4 C (24.1 F)
1997	-2.2 C (28.0 F)
1998	0.0 C (32.0 F)
1999	-3.3 C (26.1 F)
2000	-2.2 C (28.0 F)
2001	-4.4 C (24.1 F)
2002	-3.3 C (26.1 F)
2003	-1.1 C (30.0 F)
2004	-2.8 C (27.0 F)
2005	-1.1 C (30.0 F)
2006	-3.3 C (26.1 F)
2008	-5.0 C (23.0 F)
2009	-1.1 C (30.0 F)
2010	-7.2 C (19.0 F)
2011	-5.0 C (23.0 F)

Wettest day (Rx1day)

The wettest day of the year at Cienega de Flores, 1941 to 2011. The record is 254.8 mm (10.0 in) in 1953, marked on the chart; the median year is 69.0 mm (2.7 in).

Wettest day (Rx1day) at Cienega de Flores by year
Year	Wettest day (Rx1day)
1941	82.0 mm (3.2 in)
1942	73.4 mm (2.9 in)
1943	145.5 mm (5.7 in)
1944	160.3 mm (6.3 in)
1945	38.4 mm (1.5 in)
1946	78.0 mm (3.1 in)
1947	85.6 mm (3.4 in)
1948	90.7 mm (3.6 in)
1949	67.6 mm (2.7 in)
1950	92.5 mm (3.6 in)
1951	117.9 mm (4.6 in)
1952	20.6 mm (0.8 in)
1953	254.8 mm (10.0 in)
1954	92.2 mm (3.6 in)
1955	52.6 mm (2.1 in)
1956	40.6 mm (1.6 in)
1957	60.2 mm (2.4 in)
1958	80.8 mm (3.2 in)
1959	70.4 mm (2.8 in)
1960	100.8 mm (4.0 in)
1961	78.0 mm (3.1 in)
1962	142.7 mm (5.6 in)
1963	170.7 mm (6.7 in)
1964	45.5 mm (1.8 in)
1965	67.6 mm (2.7 in)
1966	66.8 mm (2.6 in)
1967	205.0 mm (8.1 in)
1968	45.7 mm (1.8 in)
1969	43.2 mm (1.7 in)
1970	72.4 mm (2.9 in)
1971	137.9 mm (5.4 in)
1972	60.7 mm (2.4 in)
1973	146.6 mm (5.8 in)
1974	54.9 mm (2.2 in)
1975	63.0 mm (2.5 in)
1976	142.7 mm (5.6 in)
1977	63.5 mm (2.5 in)
1978	109.0 mm (4.3 in)
1979	48.3 mm (1.9 in)
1980	143.8 mm (5.7 in)
1981	63.5 mm (2.5 in)
1982	33.0 mm (1.3 in)
1983	59.9 mm (2.4 in)
1984	64.8 mm (2.6 in)
1985	43.4 mm (1.7 in)
1986	73.2 mm (2.9 in)
1987	49.8 mm (2.0 in)
1988	112.5 mm (4.4 in)
1989	36.8 mm (1.4 in)
1990	53.8 mm (2.1 in)
1991	75.9 mm (3.0 in)
1992	45.0 mm (1.8 in)
1993	48.8 mm (1.9 in)
1994	53.8 mm (2.1 in)
1995	54.9 mm (2.2 in)
1996	34.8 mm (1.4 in)
1997	57.4 mm (2.3 in)
1998	63.8 mm (2.5 in)
1999	197.9 mm (7.8 in)
2000	61.0 mm (2.4 in)
2001	94.0 mm (3.7 in)
2002	111.0 mm (4.4 in)
2003	61.0 mm (2.4 in)
2004	51.3 mm (2.0 in)
2005	165.9 mm (6.5 in)
2006	132.8 mm (5.2 in)
2008	95.0 mm (3.7 in)
2009	55.9 mm (2.2 in)
2010	108.0 mm (4.3 in)
2011	100.8 mm (4.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cienega de Flores, 1941 to 2011. The record is 459.3 mm (18.1 in) in 1953, marked on the chart; the median year is 115.0 mm (4.5 in).

Wettest five days (Rx5day) at Cienega de Flores by year
Year	Wettest five days (Rx5day)
1941	137.3 mm (5.4 in)
1942	79.2 mm (3.1 in)
1943	212.8 mm (8.4 in)
1944	218.2 mm (8.6 in)
1945	63.3 mm (2.5 in)
1946	122.4 mm (4.8 in)
1947	271.6 mm (10.7 in)
1948	138.2 mm (5.4 in)
1949	89.0 mm (3.5 in)
1950	92.5 mm (3.6 in)
1951	242.2 mm (9.5 in)
1952	43.4 mm (1.7 in)
1953	459.3 mm (18.1 in)
1954	92.2 mm (3.6 in)
1955	68.6 mm (2.7 in)
1956	68.5 mm (2.7 in)
1957	66.6 mm (2.6 in)
1958	202.8 mm (8.0 in)
1959	88.7 mm (3.5 in)
1960	136.7 mm (5.4 in)
1961	91.2 mm (3.6 in)
1962	142.7 mm (5.6 in)
1963	247.5 mm (9.7 in)
1964	71.7 mm (2.8 in)
1965	183.9 mm (7.2 in)
1966	93.9 mm (3.7 in)
1967	369.4 mm (14.5 in)
1968	81.3 mm (3.2 in)
1969	116.5 mm (4.6 in)
1970	101.5 mm (4.0 in)
1971	154.7 mm (6.1 in)
1972	135.2 mm (5.3 in)
1973	250.0 mm (9.8 in)
1974	132.9 mm (5.2 in)
1975	140.1 mm (5.5 in)
1976	279.1 mm (11.0 in)
1977	128.8 mm (5.1 in)
1978	200.7 mm (7.9 in)
1979	113.5 mm (4.5 in)
1980	219.0 mm (8.6 in)
1981	121.9 mm (4.8 in)
1982	52.9 mm (2.1 in)
1983	103.6 mm (4.1 in)
1984	88.1 mm (3.5 in)
1985	77.7 mm (3.1 in)
1986	127.3 mm (5.0 in)
1987	87.9 mm (3.5 in)
1988	148.1 mm (5.8 in)
1989	63.7 mm (2.5 in)
1990	15.5 mm (0.6 in)
1991	96.3 mm (3.8 in)
1992	59.2 mm (2.3 in)
1993	71.2 mm (2.8 in)
1994	65.8 mm (2.6 in)
1995	91.3 mm (3.6 in)
1996	84.4 mm (3.3 in)
1997	79.5 mm (3.1 in)
1998	109.3 mm (4.3 in)
1999	198.7 mm (7.8 in)
2000	98.1 mm (3.9 in)
2001	95.8 mm (3.8 in)
2002	198.6 mm (7.8 in)
2003	120.2 mm (4.7 in)
2004	87.2 mm (3.4 in)
2005	177.1 mm (7.0 in)
2006	132.8 mm (5.2 in)
2008	159.0 mm (6.3 in)
2009	55.9 mm (2.2 in)
2010	292.7 mm (11.5 in)
2011	145.5 mm (5.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cienega de Flores, 1941 to 2011. The record is 124 days in 1991, marked on the chart; the median year is 39 days.

Longest dry spell (CDD) at Cienega de Flores by year
Year	Longest dry spell (CDD)
1941	30 days
1942	66 days
1943	54 days
1944	35 days
1945	38 days
1946	37 days
1947	36 days
1948	47 days
1949	28 days
1950	47 days
1951	45 days
1952	99 days
1953	85 days
1954	64 days
1955	42 days
1956	36 days
1957	55 days
1958	38 days
1959	29 days
1960	31 days
1961	31 days
1962	46 days
1963	36 days
1964	34 days
1965	36 days
1966	39 days
1967	42 days
1968	21 days
1969	28 days
1970	53 days
1971	44 days
1972	23 days
1973	36 days
1974	45 days
1975	34 days
1976	28 days
1977	24 days
1978	49 days
1979	57 days
1980	80 days
1981	69 days
1982	35 days
1983	46 days
1984	29 days
1985	27 days
1986	61 days
1987	31 days
1988	57 days
1989	46 days
1990	62 days
1991	124 days
1992	53 days
1993	37 days
1994	36 days
1995	32 days
1996	83 days
1997	33 days
1998	83 days
1999	42 days
2000	38 days
2001	21 days
2002	83 days
2003	36 days
2004	38 days
2005	45 days
2006	47 days
2008	22 days
2009	25 days
2010	48 days
2011	98 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

31 years with a frost

Across 31 years with a frost, the median last spring frost at Cienega de Flores falls on 14 February and the median first autumn frost on 29 November, which leaves a median of 289 days between them.

Fitted over all years, the growing season changes by -3.0 days per decade at this station.

Frost dates and growing season at Cienega de Flores
Measure	Median, all years	Earliest period	Recent period (1944 to 1993)	Recent against earliest	Fitted trend
Last spring frost	14 February	n/a	14 February	n/a	+1.1 days per decade
First autumn frost	29 November	n/a	29 November	n/a	-1.9 days per decade
Growing days	289 days	n/a	290 days	n/a	-3.0 days per decade

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.

Rainfall Return Levels

60 years, 1942 to 2011

A day with at least 73.6 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 279.5 mm (11.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Cienega de Flores: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	73.6 mm (2.9 in)
5 years	112.8 mm (4.4 in)
10 years	144.1 mm (5.7 in)
25 years	191.2 mm (7.5 in)
50 years	232.4 mm (9.1 in)
100 years	279.5 mm (11.0 in)	Longer than the 60 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 60 years of values from 1942 to 2011.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 254.8 mm (10.0 in) in 1953; 205.0 mm (8.1 in) in 1967; 197.9 mm (7.8 in) in 1999.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of Cienega de Flores, at 1961 and 1980. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1961 ran 0.6 C (1.0 F) lower than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1980 ran 0.7 C (1.2 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at Cienega de Flores, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1961	-0.6	-1.0	possible	5
1980	+0.7	+1.2	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for Cienega de Flores standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cienega de Flores 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 2026-10-14 (14 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).