Ancho Weather Records (USC00290394)

Record envelope, standing records and threshold days for Ancho (USC00290394), New Mexico, United States, with 63 years of record.

Key Facts for Ancho

Ancho (USC00290394) is a weather station in New Mexico, United States at 33.93 latitude and -105.75 longitude, 1,867 m (6,125 ft) above sea level.
The station reports from 1909 to 1971, 63 years of record.
1,464 records set at Ancho still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Ancho set a daily record precipitation of 28.2 mm (1.1 in) on 29 December 1971.

About the Station

Location: New Mexico, United States, 33.93 latitude, -105.75 longitude.
Elevation: 1,867 m (6,125 ft).
Period of record: 1909 to 1971, 63 years.
Eligible elements: prcp, snow.

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 Ancho. 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 Ancho, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.1 C (70.0 F)	-27.2 C (-17.0 F)	n/a	n/a
Feb	22.2 C (72.0 F)	-19.4 C (-2.9 F)	n/a	n/a
Mar	26.7 C (80.1 F)	-18.3 C (-0.9 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-10.0 C (14.0 F)	n/a	n/a
May	34.4 C (93.9 F)	-5.6 C (21.9 F)	n/a	n/a
Jun	38.9 C (102.0 F)	0.0 C (32.0 F)	n/a	n/a
Jul	37.2 C (99.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	36.7 C (98.1 F)	4.4 C (39.9 F)	n/a	n/a
Sep	36.7 C (98.1 F)	0.0 C (32.0 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-9.4 C (15.1 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-15.6 C (3.9 F)	n/a	n/a
Dec	24.4 C (75.9 F)	-20.0 C (-4.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ancho still stand. 1915 holds the most, with 107.

Standing records at Ancho by the year they were set
Year set	Standing records
1909	64
1910	5
1913	11
1914	54
1915	107
1916	39
1917	15
1918	107
1919	36
1920	49
1921	61
1922	44
1923	37
1924	40
1925	41
1926	29
1927	65
1928	21
1956	29
1957	32
1958	60
1959	27
1960	86
1961	56
1962	54
1963	27
1964	22
1965	35
1966	32
1967	33
1968	27
1969	33
1970	37
1971	49

All-Time Record Progression

1 new records

1 all-time records were set at Ancho between 7 August 1964 and 7 August 1964. Each dot is a new record.

Wettest Day of Each Month

Aug: 88.9 mm (3.5 in)

The wettest day on record for each calendar month at Ancho. The most was 88.9 mm (3.5 in) on 7 August 1964.

Record daily precipitation for each month at Ancho
Month	Record daily precipitation (mm)	Date
Jan	25.4 mm (1.0 in)	26 January 1944
Feb	28.4 mm (1.1 in)	16 February 1937
Mar	25.9 mm (1.0 in)	30 March 1945
Apr	36.8 mm (1.4 in)	23 April 1942
May	69.9 mm (2.8 in)	1 May 1941
Jun	82.6 mm (3.3 in)	26 June 1937
Jul	82.6 mm (3.3 in)	8 July 1929
Aug	88.9 mm (3.5 in)	7 August 1964
Sep	73.7 mm (2.9 in)	22 September 1941
Oct	56.1 mm (2.2 in)	7 October 1939
Nov	26.7 mm (1.1 in)	2 November 1923
Dec	39.4 mm (1.6 in)	10 December 1923

Period of Record Coverage

1909 to 1971

33 years of record at Ancho, 1909 to 1971. 13 years have data for under 90 percent of days and are left out of rankings: 1909, 1913, 1914, 1916, 1917, 1918, 1928, 1956 and others.

Days with data per year at Ancho
Year	Days with data	Share of year	Complete
1909	30	8%	No
1913	20	5%	No
1914	268	73%	No
1915	331	91%	Yes
1916	84	23%	No
1917	31	8%	No
1918	236	65%	No
1919	340	93%	Yes
1920	365	100%	Yes
1921	364	100%	Yes
1922	365	100%	Yes
1923	365	100%	Yes
1924	366	100%	Yes
1925	365	100%	Yes
1926	364	100%	Yes
1927	362	99%	Yes
1928	137	37%	No
1956	183	50%	No
1957	314	86%	No
1958	251	69%	No
1959	192	53%	No
1960	365	100%	Yes
1961	365	100%	Yes
1962	358	98%	Yes
1963	151	41%	No
1964	274	75%	No
1965	363	99%	Yes
1966	362	99%	Yes
1967	361	99%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	364	100%	Yes
1971	365	100%	Yes

Latest Records

Latest records at Ancho
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 December 1971	Ancho, US	daily rain	28.2 mm (1.1 in)	14.0 mm (0.6 in)	36 years	39 of 100 (Notable)
2 December 1971	Ancho, US	daily snowfall	6.4 cm (2.5 in)	1.3 cm (0.5 in)	56 years	25 of 100 (Routine)
2 December 1971	Ancho, US	daily rain (Tie)	6.4 mm (0.25 in)	tie	17 years	2 of 100 (Routine)
1 December 1971	Ancho, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	40 years	4 of 100 (Routine)
16 November 1971	Ancho, US	daily rain	11.7 mm (0.5 in)	6.1 mm (0.24 in)	36 years	20 of 100 (Routine)
25 October 1971	Ancho, US	daily rain	34.0 mm (1.3 in)	8.6 mm (0.34 in)	29 years	25 of 100 (Routine)
1 August 1971	Ancho, US	daily rain	16.0 mm (0.6 in)	0.8 mm (0.03 in)	52 years	20 of 100 (Routine)
19 April 1971	Ancho, US	daily rain (Tie)	7.6 mm (0.30 in)	tie	48 years	5 of 100 (Routine)
3 January 1971	Ancho, US	daily rain	10.9 mm (0.4 in)	0.2 mm (0.01 in)	40 years	18 of 100 (Routine)
21 June 1970	Ancho, US	daily rain	25.4 mm (1.0 in)	17.8 mm (0.7 in)	45 years	39 of 100 (Notable)
11 March 1970	Ancho, US	daily rain	13.5 mm (0.5 in)	4.9 mm (0.19 in)	35 years	20 of 100 (Routine)
5 December 1969	Ancho, US	daily rain	22.1 mm (0.9 in)	9.4 mm (0.37 in)	27 years	20 of 100 (Routine)
29 August 1969	Ancho, US	daily rain	31.8 mm (1.3 in)	11.5 mm (0.5 in)	56 years	36 of 100 (Notable)
10 July 1969	Ancho, US	daily rain	40.6 mm (1.6 in)	2.5 mm (0.10 in)	48 years	23 of 100 (Routine)
6 May 1969	Ancho, US	daily rain	15.2 mm (0.6 in)	14.9 mm (0.6 in)	48 years	20 of 100 (Routine)
5 May 1969	Ancho, US	daily rain	12.2 mm (0.5 in)	2.0 mm (0.08 in)	23 years	14 of 100 (Routine)
23 February 1969	Ancho, US	daily snowfall	3.8 cm (1.5 in)	3.8 cm (1.5 in)	59 years	20 of 100 (Routine)
13 February 1969	Ancho, US	daily rain	10.7 mm (0.4 in)	5.6 mm (0.22 in)	20 years	20 of 100 (Routine)
14 November 1968	Ancho, US	daily rain	19.3 mm (0.8 in)	9.1 mm (0.36 in)	50 years	20 of 100 (Routine)
20 March 1968	Ancho, US	daily snowfall	8.4 cm (3.3 in)	3.3 cm (1.3 in)	11 years	17 of 100 (Routine)

Climate Trend

18 complete years, 1920 to 1971

One stripe for each of 18 complete years at Ancho, 1920 to 1971. Blue stripes are years cooler than the station's own mean of 11.8 C (53.3 F); red stripes are warmer. The coolest year was 1960, at 10.8 C (51.4 F), and the warmest was 1921, at 12.9 C (55.3 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Ancho as warming stripes, 1920 to 1971
Year	Annual mean temperature	Difference from the station mean
1920	11.6 C	-0.22 C
1921	12.9 C	+1.10 C
1922	12.6 C	+0.77 C
1923	11.7 C	-0.11 C
1924	12.4 C	+0.54 C
1925	12.3 C	+0.51 C
1926	11.3 C	-0.54 C
1927	12.5 C	+0.62 C
1960	10.8 C	-1.05 C
1961	11.0 C	-0.83 C
1962	11.7 C	-0.14 C
1965	11.9 C	+0.05 C
1966	11.7 C	-0.13 C
1967	11.9 C	+0.04 C
1968	11.3 C	-0.55 C
1969	12.1 C	+0.28 C
1970	11.7 C	-0.17 C
1971	11.7 C	-0.14 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

1909 to 1971

Yearly extremes at Ancho: 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)	1914	35.0 C (95.0 F)	33
Coldest night (TNn)	-27.2 C (-17.0 F)	1962	-15.6 C (3.9 F)	34
Wettest day (Rx1day)	88.9 mm (3.5 in)	1964	30.5 mm (1.2 in)	63
Wettest five days (Rx5day)	129.1 mm (5.1 in)	1941	47.7 mm (1.9 in)	63
Longest dry spell (CDD)	165 days	1910	48 days	63

Hottest day (TXx)

The hottest day of the year at Ancho, 1909 to 1971. The record is 38.9 C (102.0 F) in 1914, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Ancho by year
Year	Hottest day (TXx)
1909	31.1 C (88.0 F)
1910	n/a
1911	n/a
1912	n/a
1913	30.0 C (86.0 F)
1914	38.9 C (102.0 F)
1915	33.3 C (91.9 F)
1916	25.6 C (78.1 F)
1917	23.3 C (73.9 F)
1918	37.8 C (100.0 F)
1919	34.4 C (93.9 F)
1920	32.8 C (91.0 F)
1921	34.4 C (93.9 F)
1922	35.0 C (95.0 F)
1923	35.6 C (96.1 F)
1924	37.8 C (100.0 F)
1925	34.4 C (93.9 F)
1926	33.9 C (93.0 F)
1927	36.7 C (98.1 F)
1928	27.2 C (81.0 F)
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	35.0 C (95.0 F)
1957	37.2 C (99.0 F)
1958	36.7 C (98.1 F)
1959	36.1 C (97.0 F)
1960	37.8 C (100.0 F)
1961	36.1 C (97.0 F)
1962	35.6 C (96.1 F)
1963	31.1 C (88.0 F)
1964	36.7 C (98.1 F)
1965	34.4 C (93.9 F)
1966	35.6 C (96.1 F)
1967	33.9 C (93.0 F)
1968	35.6 C (96.1 F)
1969	36.1 C (97.0 F)
1970	35.0 C (95.0 F)
1971	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Ancho, 1909 to 1971. The record is -27.2 C (-17.0 F) in 1962, marked on the chart; the median year is -15.6 C (3.9 F).

Coldest night (TNn) at Ancho by year
Year	Coldest night (TNn)
1909	-11.1 C (12.0 F)
1910	-5.6 C (21.9 F)
1911	n/a
1912	n/a
1913	13.3 C (55.9 F)
1914	-13.3 C (8.1 F)
1915	-16.7 C (1.9 F)
1916	-11.1 C (12.0 F)
1917	-10.6 C (12.9 F)
1918	-18.9 C (-2.0 F)
1919	-14.4 C (6.1 F)
1920	-19.4 C (-2.9 F)
1921	-13.3 C (8.1 F)
1922	-16.7 C (1.9 F)
1923	-15.0 C (5.0 F)
1924	-19.4 C (-2.9 F)
1925	-15.6 C (3.9 F)
1926	-16.7 C (1.9 F)
1927	-11.7 C (10.9 F)
1928	-12.2 C (10.0 F)
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	-15.6 C (3.9 F)
1957	-15.0 C (5.0 F)
1958	-20.0 C (-4.0 F)
1959	-17.8 C (0.0 F)
1960	-18.9 C (-2.0 F)
1961	-14.4 C (6.1 F)
1962	-27.2 C (-17.0 F)
1963	-23.3 C (-9.9 F)
1964	-13.9 C (7.0 F)
1965	-18.3 C (-0.9 F)
1966	-16.7 C (1.9 F)
1967	-17.8 C (0.0 F)
1968	-15.0 C (5.0 F)
1969	-15.0 C (5.0 F)
1970	-16.7 C (1.9 F)
1971	-26.1 C (-15.0 F)

Wettest day (Rx1day)

The wettest day of the year at Ancho, 1909 to 1971. The record is 88.9 mm (3.5 in) in 1964, marked on the chart; the median year is 30.5 mm (1.2 in).

Wettest day (Rx1day) at Ancho by year
Year	Wettest day (Rx1day)
1909	25.4 mm (1.0 in)
1910	15.2 mm (0.6 in)
1911	23.1 mm (0.9 in)
1912	37.6 mm (1.5 in)
1913	26.7 mm (1.1 in)
1914	20.8 mm (0.8 in)
1915	25.4 mm (1.0 in)
1916	21.6 mm (0.9 in)
1917	27.9 mm (1.1 in)
1918	21.3 mm (0.8 in)
1919	20.1 mm (0.8 in)
1920	38.1 mm (1.5 in)
1921	50.8 mm (2.0 in)
1922	24.1 mm (0.9 in)
1923	39.4 mm (1.6 in)
1924	26.7 mm (1.1 in)
1925	30.0 mm (1.2 in)
1926	34.0 mm (1.3 in)
1927	23.4 mm (0.9 in)
1928	33.0 mm (1.3 in)
1929	82.6 mm (3.3 in)
1930	31.8 mm (1.3 in)
1931	33.0 mm (1.3 in)
1932	35.6 mm (1.4 in)
1933	27.9 mm (1.1 in)
1934	31.8 mm (1.3 in)
1935	48.3 mm (1.9 in)
1936	31.5 mm (1.2 in)
1937	82.6 mm (3.3 in)
1938	42.4 mm (1.7 in)
1939	56.1 mm (2.2 in)
1940	43.2 mm (1.7 in)
1941	73.7 mm (2.9 in)
1942	36.8 mm (1.4 in)
1943	30.5 mm (1.2 in)
1944	26.7 mm (1.1 in)
1945	25.9 mm (1.0 in)
1946	22.9 mm (0.9 in)
1947	13.5 mm (0.5 in)
1948	19.1 mm (0.8 in)
1949	24.1 mm (0.9 in)
1950	45.7 mm (1.8 in)
1951	36.8 mm (1.4 in)
1952	34.3 mm (1.4 in)
1953	23.1 mm (0.9 in)
1954	37.6 mm (1.5 in)
1955	20.8 mm (0.8 in)
1956	20.8 mm (0.8 in)
1957	22.9 mm (0.9 in)
1958	25.4 mm (1.0 in)
1959	33.0 mm (1.3 in)
1960	22.6 mm (0.9 in)
1961	37.1 mm (1.5 in)
1962	52.3 mm (2.1 in)
1963	6.6 mm (0.26 in)
1964	88.9 mm (3.5 in)
1965	46.2 mm (1.8 in)
1966	20.8 mm (0.8 in)
1967	31.2 mm (1.2 in)
1968	21.8 mm (0.9 in)
1969	40.6 mm (1.6 in)
1970	25.4 mm (1.0 in)
1971	34.0 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ancho, 1909 to 1971. The record is 129.1 mm (5.1 in) in 1941, marked on the chart; the median year is 47.7 mm (1.9 in).

Wettest five days (Rx5day) at Ancho by year
Year	Wettest five days (Rx5day)
1909	63.5 mm (2.5 in)
1910	24.9 mm (1.0 in)
1911	58.2 mm (2.3 in)
1912	68.5 mm (2.7 in)
1913	36.8 mm (1.4 in)
1914	41.6 mm (1.6 in)
1915	30.4 mm (1.2 in)
1916	58.5 mm (2.3 in)
1917	38.1 mm (1.5 in)
1918	33.5 mm (1.3 in)
1919	36.6 mm (1.4 in)
1920	63.5 mm (2.5 in)
1921	83.8 mm (3.3 in)
1922	28.0 mm (1.1 in)
1923	63.5 mm (2.5 in)
1924	39.4 mm (1.6 in)
1925	45.0 mm (1.8 in)
1926	55.5 mm (2.2 in)
1927	28.7 mm (1.1 in)
1928	36.8 mm (1.4 in)
1929	101.9 mm (4.0 in)
1930	40.1 mm (1.6 in)
1931	55.9 mm (2.2 in)
1932	35.6 mm (1.4 in)
1933	39.4 mm (1.6 in)
1934	48.6 mm (1.9 in)
1935	64.8 mm (2.6 in)
1936	67.0 mm (2.6 in)
1937	96.6 mm (3.8 in)
1938	78.0 mm (3.1 in)
1939	103.1 mm (4.1 in)
1940	51.9 mm (2.0 in)
1941	129.1 mm (5.1 in)
1942	56.4 mm (2.2 in)
1943	33.5 mm (1.3 in)
1944	39.4 mm (1.6 in)
1945	44.7 mm (1.8 in)
1946	55.8 mm (2.2 in)
1947	19.3 mm (0.8 in)
1948	41.4 mm (1.6 in)
1949	36.1 mm (1.4 in)
1950	49.5 mm (1.9 in)
1951	78.0 mm (3.1 in)
1952	49.8 mm (2.0 in)
1953	31.5 mm (1.2 in)
1954	42.9 mm (1.7 in)
1955	48.8 mm (1.9 in)
1956	27.8 mm (1.1 in)
1957	28.7 mm (1.1 in)
1958	39.9 mm (1.6 in)
1959	52.0 mm (2.0 in)
1960	54.9 mm (2.2 in)
1961	65.8 mm (2.6 in)
1962	81.3 mm (3.2 in)
1963	8.2 mm (0.32 in)
1964	89.7 mm (3.5 in)
1965	89.1 mm (3.5 in)
1966	31.8 mm (1.3 in)
1967	47.7 mm (1.9 in)
1968	40.2 mm (1.6 in)
1969	51.5 mm (2.0 in)
1970	46.8 mm (1.8 in)
1971	37.8 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ancho, 1909 to 1971. The record is 165 days in 1910, marked on the chart; the median year is 48 days.

Longest dry spell (CDD) at Ancho by year
Year	Longest dry spell (CDD)
1909	77 days
1910	165 days
1911	44 days
1912	60 days
1913	41 days
1914	56 days
1915	39 days
1916	76 days
1917	54 days
1918	43 days
1919	32 days
1920	49 days
1921	85 days
1922	56 days
1923	48 days
1924	75 days
1925	92 days
1926	28 days
1927	73 days
1928	48 days
1929	53 days
1930	56 days
1931	41 days
1932	38 days
1933	45 days
1934	53 days
1935	37 days
1936	44 days
1937	56 days
1938	40 days
1939	50 days
1940	33 days
1941	29 days
1942	35 days
1943	40 days
1944	30 days
1945	53 days
1946	39 days
1947	53 days
1948	35 days
1949	25 days
1950	88 days
1951	48 days
1952	54 days
1953	47 days
1954	61 days
1955	39 days
1956	53 days
1957	39 days
1958	40 days
1959	57 days
1960	48 days
1961	47 days
1962	35 days
1963	34 days
1964	42 days
1965	39 days
1966	79 days
1967	57 days
1968	33 days
1969	36 days
1970	58 days
1971	56 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.

Rainfall Return Levels

58 years, 1910 to 1971

A day with at least 29.7 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 89.9 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Ancho: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.7 mm (1.2 in)
5 years	41.3 mm (1.6 in)
10 years	50.6 mm (2.0 in)
25 years	64.3 mm (2.5 in)
50 years	76.3 mm (3.0 in)
100 years	89.9 mm (3.5 in)	Longer than the 58 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, 58 years of values from 1910 to 1971.

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: 82.6 mm (3.3 in) in 1929; 82.6 mm (3.3 in) in 1937; 73.7 mm (2.9 in) in 1941.

Download the Data

Data for Ancho standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ancho 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).