Beaverhead R/S Weather Records (USC00290818)

Record envelope, standing records and threshold days for Beaverhead R/S (USC00290818), New Mexico, United States, with 93 years of record.

Key Facts for Beaverhead R/S

Beaverhead R/S (USC00290818) is a weather station in New Mexico, United States at 33.43 latitude and -108.10 longitude, 2,033 m (6,670 ft) above sea level.
The station reports from 1916 to 2008, 93 years of record.
1,464 records set at Beaverhead R/S still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Beaverhead R/S tied a daily record high maximum temperature of 31.7 C (89.1 F) on 29 August 2008.

About the Station

Location: New Mexico, United States, 33.43 latitude, -108.10 longitude.
Elevation: 2,033 m (6,670 ft).
Period of record: 1916 to 2008, 93 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

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 Beaverhead R/S. 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 Beaverhead R/S, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	20.6 C (69.1 F)	-30.0 C (-22.0 F)	n/a	n/a
Feb	25.0 C (77.0 F)	-31.7 C (-25.1 F)	n/a	n/a
Mar	25.6 C (78.1 F)	-19.4 C (-2.9 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-15.6 C (3.9 F)	n/a	n/a
May	35.6 C (96.1 F)	-11.7 C (10.9 F)	n/a	n/a
Jun	38.3 C (100.9 F)	-6.1 C (21.0 F)	n/a	n/a
Jul	38.3 C (100.9 F)	-0.6 C (30.9 F)	n/a	n/a
Aug	34.4 C (93.9 F)	0.6 C (33.1 F)	n/a	n/a
Sep	36.1 C (97.0 F)	-4.4 C (24.1 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-13.9 C (7.0 F)	n/a	n/a
Nov	28.3 C (82.9 F)	-23.9 C (-11.0 F)	n/a	n/a
Dec	25.6 C (78.1 F)	-31.1 C (-24.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Beaverhead R/S still stand. 1943 holds the most, with 44.

Standing records at Beaverhead R/S by the year they were set
Year set	Standing records
1919	4
1939	24
1940	34
1941	40
1942	22
1943	44
1944	25
1945	25
1946	21
1947	10
1948	2
1949	2
1950	25
1951	28
1952	9
1953	29
1954	17
1955	16
1956	34
1957	35
1958	20
1959	18
1960	19
1961	18
1962	31
1963	17
1964	31
1965	27
1966	22
1967	28
1968	20
1969	25
1970	24
1971	38
1972	30
1973	15
1974	16
1975	30
1976	15
1977	7
1979	24
1980	38
1981	16
1982	10
1983	17
1984	18
1985	18
1986	21
1987	22
1988	16
1989	32
1990	25
1991	15
1992	21
1993	12
1994	27
1995	22
1996	24
1997	6
1998	8
1999	15
2000	26
2001	10
2002	18
2003	21
2004	20
2005	19
2006	18
2007	19
2008	9

All-Time Record Progression

6 new records

6 all-time records were set at Beaverhead R/S between 23 June 1981 and 17 July 1999. Each dot is a new record.

When Beaverhead R/S set new all-time records
Date	Kind	Detail
1981-06-23	Record high maximum temperature	Record high maximum temperature 36.7 C (98.1 F)
1987-12-26	Record snow depth	Record snow depth 61.0 cm (24.0 in)
1989-07-05	Record high maximum temperature	Record high maximum temperature 37.2 C (99.0 F)
1994-06-26	Record high maximum temperature	Record high maximum temperature 37.8 C (100.0 F)
1994-06-28	Record high maximum temperature	Record high maximum temperature 38.3 C (100.9 F)
1999-07-17	Record high minimum temperature	Record high minimum temperature 18.9 C (66.0 F)

Wettest Day of Each Month

Sep: 113.0 mm (4.4 in)

The wettest day on record for each calendar month at Beaverhead R/S. The most was 113.0 mm (4.4 in) on 29 September 1941.

Record daily precipitation for each month at Beaverhead R/S
Month	Record daily precipitation (mm)	Date
Jan	33.0 mm (1.3 in)	20 January 1917
Feb	31.0 mm (1.2 in)	1 February 1940
Mar	27.7 mm (1.1 in)	29 March 1977
Apr	29.2 mm (1.1 in)	25 April 1941
May	34.3 mm (1.4 in)	14 May 1973
Jun	40.6 mm (1.6 in)	2 June 1952
Jul	54.4 mm (2.1 in)	17 July 1984
Aug	56.9 mm (2.2 in)	7 August 1988
Sep	113.0 mm (4.4 in)	29 September 1941
Oct	58.7 mm (2.3 in)	7 October 1939
Nov	92.7 mm (3.6 in)	12 November 1994
Dec	60.2 mm (2.4 in)	5 December 1992

Period of Record Coverage

1919 to 2008

70 years of record at Beaverhead R/S, 1919 to 2008. 44 years have data for under 90 percent of days and are left out of rankings: 1919, 1939, 1942, 1945, 1946, 1947, 1948, 1949 and others.

Days with data per year at Beaverhead R/S
Year	Days with data	Share of year	Complete
1919	9	2%	No
1939	282	77%	No
1940	360	98%	Yes
1941	348	95%	Yes
1942	306	84%	No
1943	347	95%	Yes
1944	339	93%	Yes
1945	218	60%	No
1946	196	54%	No
1947	215	59%	No
1948	12	3%	No
1949	63	17%	No
1950	253	69%	No
1951	258	71%	No
1952	154	42%	No
1953	187	51%	No
1954	200	55%	No
1955	326	89%	No
1956	326	89%	No
1957	315	86%	No
1958	360	99%	Yes
1959	364	100%	Yes
1960	354	97%	Yes
1961	364	100%	Yes
1962	329	90%	Yes
1963	315	86%	No
1964	366	100%	Yes
1965	345	95%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	366	100%	Yes
1969	364	100%	Yes
1970	333	91%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	360	99%	Yes
1974	331	91%	Yes
1975	306	84%	No
1976	286	78%	No
1977	233	64%	No
1979	250	68%	No
1980	322	88%	No
1981	305	84%	No
1982	328	90%	No
1983	327	90%	No
1984	356	97%	Yes
1985	360	99%	Yes
1986	354	97%	Yes
1987	336	92%	Yes
1988	353	96%	Yes
1989	324	89%	No
1990	325	89%	No
1991	312	85%	No
1992	331	90%	Yes
1993	280	77%	No
1994	290	79%	No
1995	288	79%	No
1996	177	48%	No
1997	182	50%	No
1998	170	47%	No
1999	136	37%	No
2000	152	42%	No
2001	239	65%	No
2002	170	47%	No
2003	208	57%	No
2004	218	60%	No
2005	191	52%	No
2006	267	73%	No
2007	263	72%	No
2008	201	55%	No

Latest Records

Latest records at Beaverhead R/S
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 August 2008	Beaverhead R/S, US	daily high max (Tie)	31.7 C (89.1 F)	tie	46 years	5 of 100 (Routine)
25 August 2008	Beaverhead R/S, US	daily low min	2.2 C (36.0 F)	1.1 C (2.0 F)	44 years	26 of 100 (Routine)
15 August 2008	Beaverhead R/S, US	daily low min	1.7 C (35.1 F)	1.6 C (2.9 F)	40 years	27 of 100 (Routine)
14 August 2008	Beaverhead R/S, US	daily low min	4.4 C (39.9 F)	0.6 C (1.1 F)	58 years	28 of 100 (Routine)
12 August 2008	Beaverhead R/S, US	daily high max (Tie)	31.7 C (89.1 F)	tie	28 years	4 of 100 (Routine)
28 July 2008	Beaverhead R/S, US	daily rain	33.5 mm (1.3 in)	7.6 mm (0.30 in)	2 years	21 of 100 (Routine)
21 July 2008	Beaverhead R/S, US	daily rain	17.8 mm (0.7 in)	2.1 mm (0.08 in)	11 years	15 of 100 (Routine)
14 July 2008	Beaverhead R/S, US	daily rain	20.3 mm (0.8 in)	0.5 mm (0.02 in)	58 years	20 of 100 (Routine)
11 July 2008	Beaverhead R/S, US	daily low max	20.0 C (68.0 F)	2.8 C (5.0 F)	59 years	34 of 100 (Routine)
21 June 2008	Beaverhead R/S, US	daily high max (Tie)	35.0 C (95.0 F)	tie	40 years	5 of 100 (Routine)
24 May 2008	Beaverhead R/S, US	daily low max	9.4 C (48.9 F)	5.6 C (10.1 F)	16 years	27 of 100 (Routine)
23 May 2008	Beaverhead R/S, US	daily low min (Tie)	-5.0 C (23.0 F)	tie	33 years	4 of 100 (Routine)
20 May 2008	Beaverhead R/S, US	daily high max (Tie)	31.1 C (88.0 F)	tie	12 years	3 of 100 (Routine)
16 May 2008	Beaverhead R/S, US	daily low max	15.6 C (60.1 F)	0.5 C (0.9 F)	24 years	17 of 100 (Routine)
18 April 2008	Beaverhead R/S, US	daily low min	-11.7 C (10.9 F)	1.1 C (2.0 F)	13 years	14 of 100 (Routine)
18 March 2008	Beaverhead R/S, US	daily low max	6.1 C (43.0 F)	1.1 C (2.0 F)	22 years	17 of 100 (Routine)
3 March 2008	Beaverhead R/S, US	daily high max (Tie)	21.1 C (70.0 F)	tie	36 years	4 of 100 (Routine)
7 January 2008	Beaverhead R/S, US	daily high min	1.1 C (34.0 F)	1.1 C (2.0 F)	14 years	15 of 100 (Routine)
13 December 2007	Beaverhead R/S, US	daily low max (Tie)	0.0 C (32.0 F)	tie	21 years	3 of 100 (Routine)
12 December 2007	Beaverhead R/S, US	daily rain	21.8 mm (0.9 in)	11.4 mm (0.4 in)	21 years	20 of 100 (Routine)

Climate Trend

23 complete years, 1940 to 1990

One stripe for each of 23 complete years at Beaverhead R/S, 1940 to 1990. Blue stripes are years cooler than the station's own mean of 8.7 C (47.7 F); red stripes are warmer. The coolest year was 1964, at 7.7 C (45.8 F), and the warmest was 1986, at 9.3 C (48.7 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Beaverhead R/S as warming stripes, 1940 to 1990
Year	Annual mean temperature	Difference from the station mean
1940	8.6 C	-0.08 C
1941	8.3 C	-0.43 C
1943	8.0 C	-0.67 C
1958	9.1 C	+0.41 C
1959	8.9 C	+0.20 C
1960	8.5 C	-0.21 C
1961	8.5 C	-0.23 C
1964	7.7 C	-1.06 C
1965	8.3 C	-0.37 C
1966	8.6 C	-0.10 C
1967	9.2 C	+0.44 C
1968	8.1 C	-0.61 C
1969	9.3 C	+0.56 C
1971	8.5 C	-0.22 C
1972	9.1 C	+0.42 C
1973	8.2 C	-0.55 C
1980	9.0 C	+0.25 C
1983	9.1 C	+0.40 C
1984	8.9 C	+0.14 C
1985	9.2 C	+0.53 C
1986	9.3 C	+0.59 C
1988	9.1 C	+0.34 C
1990	9.1 C	+0.34 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

1916 to 2008

Yearly extremes at Beaverhead R/S: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	1994	34.4 C (93.9 F)	70
Coldest night (TNn)	-31.7 C (-25.1 F)	1965	-21.1 C (-6.0 F)	70
Wettest day (Rx1day)	113.0 mm (4.4 in)	1941	30.8 mm (1.2 in)	74
Wettest five days (Rx5day)	133.6 mm (5.3 in)	1997	49.3 mm (1.9 in)	74
Longest dry spell (CDD)	87 days	1950	47 days	74

Hottest day (TXx)

The hottest day of the year at Beaverhead R/S, 1916 to 2008. The record is 38.3 C (100.9 F) in 1994, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at Beaverhead R/S by year
Year	Hottest day (TXx)
1916	n/a
1917	n/a
1918	n/a
1919	6.7 C (44.1 F)
1938	n/a
1939	35.0 C (95.0 F)
1940	33.3 C (91.9 F)
1941	29.4 C (84.9 F)
1942	33.9 C (93.0 F)
1943	30.0 C (86.0 F)
1944	33.3 C (91.9 F)
1945	32.8 C (91.0 F)
1946	32.2 C (90.0 F)
1947	32.2 C (90.0 F)
1948	27.2 C (81.0 F)
1949	31.1 C (88.0 F)
1950	33.3 C (91.9 F)
1951	35.6 C (96.1 F)
1952	32.2 C (90.0 F)
1953	35.6 C (96.1 F)
1954	33.3 C (91.9 F)
1955	32.8 C (91.0 F)
1956	33.9 C (93.0 F)
1957	35.6 C (96.1 F)
1958	36.1 C (97.0 F)
1959	33.3 C (91.9 F)
1960	34.4 C (93.9 F)
1961	33.3 C (91.9 F)
1962	33.9 C (93.0 F)
1963	31.7 C (89.1 F)
1964	34.4 C (93.9 F)
1965	33.3 C (91.9 F)
1966	35.0 C (95.0 F)
1967	35.0 C (95.0 F)
1968	35.0 C (95.0 F)
1969	35.0 C (95.0 F)
1970	34.4 C (93.9 F)
1971	35.0 C (95.0 F)
1972	34.4 C (93.9 F)
1973	35.0 C (95.0 F)
1974	35.0 C (95.0 F)
1975	33.3 C (91.9 F)
1976	32.2 C (90.0 F)
1977	33.9 C (93.0 F)
1979	35.6 C (96.1 F)
1980	35.6 C (96.1 F)
1981	36.7 C (98.1 F)
1982	35.0 C (95.0 F)
1983	35.0 C (95.0 F)
1984	34.4 C (93.9 F)
1985	34.4 C (93.9 F)
1986	34.4 C (93.9 F)
1987	32.8 C (91.0 F)
1988	32.8 C (91.0 F)
1989	37.2 C (99.0 F)
1990	37.2 C (99.0 F)
1991	33.3 C (91.9 F)
1992	34.4 C (93.9 F)
1993	35.0 C (95.0 F)
1994	38.3 C (100.9 F)
1995	38.3 C (100.9 F)
1996	33.9 C (93.0 F)
1997	35.6 C (96.1 F)
1998	37.8 C (100.0 F)
1999	34.4 C (93.9 F)
2000	36.1 C (97.0 F)
2001	33.3 C (91.9 F)
2002	36.7 C (98.1 F)
2003	37.8 C (100.0 F)
2004	34.4 C (93.9 F)
2005	35.0 C (95.0 F)
2006	37.2 C (99.0 F)
2007	36.7 C (98.1 F)
2008	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Beaverhead R/S, 1916 to 2008. The record is -31.7 C (-25.1 F) in 1965, marked on the chart; the median year is -21.1 C (-6.0 F).

Coldest night (TNn) at Beaverhead R/S by year
Year	Coldest night (TNn)
1916	n/a
1917	n/a
1918	n/a
1919	-17.8 C (0.0 F)
1938	n/a
1939	-21.1 C (-6.0 F)
1940	-20.0 C (-4.0 F)
1941	-16.7 C (1.9 F)
1942	-21.1 C (-6.0 F)
1943	-22.2 C (-8.0 F)
1944	-24.4 C (-11.9 F)
1945	-20.6 C (-5.1 F)
1946	-23.9 C (-11.0 F)
1947	-10.6 C (12.9 F)
1948	-3.3 C (26.1 F)
1949	-12.2 C (10.0 F)
1950	-18.3 C (-0.9 F)
1951	-23.9 C (-11.0 F)
1952	-17.8 C (0.0 F)
1953	-24.4 C (-11.9 F)
1954	-24.4 C (-11.9 F)
1955	-20.0 C (-4.0 F)
1956	-25.0 C (-13.0 F)
1957	-20.0 C (-4.0 F)
1958	-19.4 C (-2.9 F)
1959	-19.4 C (-2.9 F)
1960	-25.0 C (-13.0 F)
1961	-19.4 C (-2.9 F)
1962	-28.9 C (-20.0 F)
1963	-23.9 C (-11.0 F)
1964	-28.3 C (-18.9 F)
1965	-31.7 C (-25.1 F)
1966	-28.3 C (-18.9 F)
1967	-25.6 C (-14.1 F)
1968	-29.4 C (-20.9 F)
1969	-17.2 C (1.0 F)
1970	-27.2 C (-17.0 F)
1971	-30.0 C (-22.0 F)
1972	-21.7 C (-7.1 F)
1973	-21.1 C (-6.0 F)
1974	-18.9 C (-2.0 F)
1975	-26.1 C (-15.0 F)
1976	-23.9 C (-11.0 F)
1977	-22.8 C (-9.0 F)
1979	-28.9 C (-20.0 F)
1980	-25.6 C (-14.1 F)
1981	-16.7 C (1.9 F)
1982	-26.1 C (-15.0 F)
1983	-21.1 C (-6.0 F)
1984	-19.4 C (-2.9 F)
1985	-26.1 C (-15.0 F)
1986	-22.2 C (-8.0 F)
1987	-26.1 C (-15.0 F)
1988	-19.4 C (-2.9 F)
1989	-20.6 C (-5.1 F)
1990	-31.1 C (-24.0 F)
1991	-20.6 C (-5.1 F)
1992	-20.6 C (-5.1 F)
1993	-18.3 C (-0.9 F)
1994	-22.2 C (-8.0 F)
1995	-21.1 C (-6.0 F)
1996	-20.6 C (-5.1 F)
1997	-22.8 C (-9.0 F)
1998	-15.6 C (3.9 F)
1999	-17.2 C (1.0 F)
2000	-17.2 C (1.0 F)
2001	-24.4 C (-11.9 F)
2002	-19.4 C (-2.9 F)
2003	-18.3 C (-0.9 F)
2004	-15.6 C (3.9 F)
2005	-23.3 C (-9.9 F)
2006	-22.2 C (-8.0 F)
2007	-16.7 C (1.9 F)
2008	-16.1 C (3.0 F)

Wettest day (Rx1day)

The wettest day of the year at Beaverhead R/S, 1916 to 2008. The record is 113.0 mm (4.4 in) in 1941, marked on the chart; the median year is 30.8 mm (1.2 in).

Wettest day (Rx1day) at Beaverhead R/S by year
Year	Wettest day (Rx1day)
1916	35.6 mm (1.4 in)
1917	33.0 mm (1.3 in)
1918	26.9 mm (1.1 in)
1919	12.7 mm (0.5 in)
1938	22.9 mm (0.9 in)
1939	58.7 mm (2.3 in)
1940	35.6 mm (1.4 in)
1941	113.0 mm (4.4 in)
1942	17.5 mm (0.7 in)
1943	33.0 mm (1.3 in)
1944	31.0 mm (1.2 in)
1945	30.5 mm (1.2 in)
1946	58.4 mm (2.3 in)
1947	25.4 mm (1.0 in)
1948	21.1 mm (0.8 in)
1949	25.1 mm (1.0 in)
1950	20.3 mm (0.8 in)
1951	24.4 mm (1.0 in)
1952	40.6 mm (1.6 in)
1953	29.2 mm (1.1 in)
1954	30.5 mm (1.2 in)
1955	21.3 mm (0.8 in)
1956	13.2 mm (0.5 in)
1957	19.1 mm (0.8 in)
1958	19.3 mm (0.8 in)
1959	47.0 mm (1.9 in)
1960	27.9 mm (1.1 in)
1961	44.7 mm (1.8 in)
1962	29.7 mm (1.2 in)
1963	25.4 mm (1.0 in)
1964	40.9 mm (1.6 in)
1965	48.5 mm (1.9 in)
1966	21.1 mm (0.8 in)
1967	39.9 mm (1.6 in)
1968	18.8 mm (0.7 in)
1969	30.0 mm (1.2 in)
1970	22.9 mm (0.9 in)
1971	54.6 mm (2.1 in)
1972	39.1 mm (1.5 in)
1973	34.3 mm (1.4 in)
1974	26.2 mm (1.0 in)
1975	38.4 mm (1.5 in)
1976	25.4 mm (1.0 in)
1977	30.5 mm (1.2 in)
1979	32.3 mm (1.3 in)
1980	25.7 mm (1.0 in)
1981	25.4 mm (1.0 in)
1982	41.9 mm (1.6 in)
1983	45.7 mm (1.8 in)
1984	54.4 mm (2.1 in)
1985	40.9 mm (1.6 in)
1986	36.1 mm (1.4 in)
1987	26.2 mm (1.0 in)
1988	56.9 mm (2.2 in)
1989	38.6 mm (1.5 in)
1990	25.9 mm (1.0 in)
1991	45.2 mm (1.8 in)
1992	60.2 mm (2.4 in)
1993	25.1 mm (1.0 in)
1994	92.7 mm (3.6 in)
1995	36.8 mm (1.4 in)
1996	29.2 mm (1.1 in)
1997	96.0 mm (3.8 in)
1998	28.4 mm (1.1 in)
1999	4.1 mm (0.16 in)
2000	15.7 mm (0.6 in)
2001	33.0 mm (1.3 in)
2002	17.8 mm (0.7 in)
2003	46.0 mm (1.8 in)
2004	30.0 mm (1.2 in)
2005	50.8 mm (2.0 in)
2006	33.0 mm (1.3 in)
2007	50.8 mm (2.0 in)
2008	33.5 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Beaverhead R/S, 1916 to 2008. The record is 133.6 mm (5.3 in) in 1997, marked on the chart; the median year is 49.3 mm (1.9 in).

Wettest five days (Rx5day) at Beaverhead R/S by year
Year	Wettest five days (Rx5day)
1916	84.2 mm (3.3 in)
1917	53.1 mm (2.1 in)
1918	50.8 mm (2.0 in)
1919	18.2 mm (0.7 in)
1938	36.2 mm (1.4 in)
1939	58.7 mm (2.3 in)
1940	36.5 mm (1.4 in)
1941	130.8 mm (5.1 in)
1942	26.9 mm (1.1 in)
1943	44.2 mm (1.7 in)
1944	66.8 mm (2.6 in)
1945	30.5 mm (1.2 in)
1946	65.1 mm (2.6 in)
1947	29.7 mm (1.2 in)
1948	51.1 mm (2.0 in)
1949	34.5 mm (1.4 in)
1950	50.1 mm (2.0 in)
1951	38.1 mm (1.5 in)
1952	44.5 mm (1.8 in)
1953	39.4 mm (1.6 in)
1954	48.6 mm (1.9 in)
1955	40.6 mm (1.6 in)
1956	28.9 mm (1.1 in)
1957	43.3 mm (1.7 in)
1958	33.8 mm (1.3 in)
1959	70.1 mm (2.8 in)
1960	43.4 mm (1.7 in)
1961	68.4 mm (2.7 in)
1962	64.5 mm (2.5 in)
1963	42.5 mm (1.7 in)
1964	60.0 mm (2.4 in)
1965	62.5 mm (2.5 in)
1966	45.0 mm (1.8 in)
1967	60.4 mm (2.4 in)
1968	43.2 mm (1.7 in)
1969	44.0 mm (1.7 in)
1970	42.6 mm (1.7 in)
1971	66.8 mm (2.6 in)
1972	74.9 mm (2.9 in)
1973	70.9 mm (2.8 in)
1974	37.6 mm (1.5 in)
1975	30.5 mm (1.2 in)
1976	38.1 mm (1.5 in)
1977	69.2 mm (2.7 in)
1979	48.3 mm (1.9 in)
1980	48.3 mm (1.9 in)
1981	48.0 mm (1.9 in)
1982	77.5 mm (3.1 in)
1983	60.5 mm (2.4 in)
1984	70.9 mm (2.8 in)
1985	74.1 mm (2.9 in)
1986	49.8 mm (2.0 in)
1987	36.7 mm (1.4 in)
1988	102.4 mm (4.0 in)
1989	59.0 mm (2.3 in)
1990	35.4 mm (1.4 in)
1991	62.5 mm (2.5 in)
1992	68.6 mm (2.7 in)
1993	57.9 mm (2.3 in)
1994	102.9 mm (4.1 in)
1995	55.1 mm (2.2 in)
1996	50.8 mm (2.0 in)
1997	133.6 mm (5.3 in)
1998	48.8 mm (1.9 in)
1999	12.7 mm (0.5 in)
2000	45.2 mm (1.8 in)
2001	50.8 mm (2.0 in)
2002	40.4 mm (1.6 in)
2003	51.1 mm (2.0 in)
2004	32.5 mm (1.3 in)
2005	100.6 mm (4.0 in)
2006	39.3 mm (1.5 in)
2007	83.8 mm (3.3 in)
2008	45.9 mm (1.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Beaverhead R/S, 1916 to 2008. The record is 87 days in 1950, marked on the chart; the median year is 47 days.

Longest dry spell (CDD) at Beaverhead R/S by year
Year	Longest dry spell (CDD)
1916	53 days
1917	49 days
1918	19 days
1919	16 days
1938	42 days
1939	27 days
1940	29 days
1941	26 days
1942	60 days
1943	43 days
1944	47 days
1945	78 days
1946	28 days
1947	69 days
1948	36 days
1949	30 days
1950	87 days
1951	58 days
1952	46 days
1953	55 days
1954	61 days
1955	58 days
1956	60 days
1957	39 days
1958	44 days
1959	58 days
1960	64 days
1961	71 days
1962	65 days
1963	47 days
1964	46 days
1965	37 days
1966	65 days
1967	51 days
1968	32 days
1969	33 days
1970	58 days
1971	73 days
1972	81 days
1973	61 days
1974	44 days
1975	43 days
1976	34 days
1977	61 days
1979	27 days
1980	54 days
1981	37 days
1982	47 days
1983	51 days
1984	39 days
1985	23 days
1986	37 days
1987	28 days
1988	47 days
1989	50 days
1990	35 days
1991	50 days
1992	29 days
1993	46 days
1994	56 days
1995	55 days
1996	56 days
1997	41 days
1998	44 days
1999	53 days
2000	58 days
2001	56 days
2002	47 days
2003	42 days
2004	19 days
2005	48 days
2006	53 days
2007	47 days
2008	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

23 years with a frost

Across 23 years with a frost, the median last spring frost at Beaverhead R/S falls on 8 June and the median first autumn frost on 22 September, which leaves a median of 109 days between them.

Frost dates and growing season at Beaverhead R/S
Measure	Median, all years	Earliest period	Recent period (1940 to 1990)	Recent against earliest	Fitted trend
Last spring frost	8 June	n/a	8 June	n/a	n/a
First autumn frost	22 September	n/a	22 September	n/a	n/a
Growing days	109 days	n/a	109 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.

Rainfall Return Levels

46 years, 1940 to 1995

A day with at least 32.1 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 106.3 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Beaverhead R/S: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.1 mm (1.3 in)
5 years	46.0 mm (1.8 in)
10 years	57.2 mm (2.3 in)
25 years	74.2 mm (2.9 in)
50 years	89.1 mm (3.5 in)	Longer than the 46 years of record
100 years	106.3 mm (4.2 in)	Longer than the 46 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, 46 years of values from 1940 to 1995.

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: 113.0 mm (4.4 in) in 1941; 92.7 mm (3.6 in) in 1994; 60.2 mm (2.4 in) in 1992.

Download the Data

Data for Beaverhead R/S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Beaverhead R/S 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).