Crow Agency Weather Records (USC00242112)

Record envelope, standing records and threshold days for Crow Agency (USC00242112), Montana, United States, with 94 years of record.

Key Facts for Crow Agency

Crow Agency (USC00242112) is a weather station in Montana, United States at 45.60 latitude and -107.45 longitude, 924 m (3,030 ft) above sea level.
The station reports from 1898 to 1991, 94 years of record.
1,464 records set at Crow Agency still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Crow Agency set a daily record low minimum temperature of 2.8 C (37.0 F) on 26 June 1991.

About the Station

Location: Montana, United States, 45.60 latitude, -107.45 longitude.
Elevation: 924 m (3,030 ft).
Period of record: 1898 to 1991, 94 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 Crow Agency. 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 Crow Agency, 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)	-42.2 C (-44.0 F)	n/a	n/a
Feb	21.7 C (71.1 F)	-45.6 C (-50.1 F)	n/a	n/a
Mar	28.9 C (84.0 F)	-36.7 C (-34.1 F)	n/a	n/a
Apr	34.4 C (93.9 F)	-23.3 C (-9.9 F)	n/a	n/a
May	38.9 C (102.0 F)	-9.4 C (15.1 F)	n/a	n/a
Jun	41.7 C (107.1 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	43.3 C (109.9 F)	2.2 C (36.0 F)	n/a	n/a
Aug	42.8 C (109.0 F)	-2.8 C (27.0 F)	n/a	n/a
Sep	40.0 C (104.0 F)	-9.4 C (15.1 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-24.4 C (-11.9 F)	n/a	n/a
Nov	26.7 C (80.1 F)	-36.7 C (-34.1 F)	n/a	n/a
Dec	25.6 C (78.1 F)	-42.2 C (-44.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Crow Agency still stand. 1939 holds the most, with 42.

Standing records at Crow Agency by the year they were set
Year set	Standing records
1898	11
1899	18
1900	18
1901	15
1902	12
1903	14
1904	13
1905	20
1906	20
1907	10
1908	16
1909	21
1910	26
1911	17
1912	12
1913	12
1914	12
1917	15
1918	24
1919	35
1920	23
1921	18
1922	13
1923	9
1924	17
1925	18
1926	9
1927	18
1928	11
1929	21
1930	21
1931	25
1932	27
1933	14
1934	29
1935	16
1936	39
1937	18
1938	7
1939	42
1940	18
1941	13
1942	12
1943	32
1944	14
1945	7
1946	12
1947	13
1948	17
1949	19
1950	24
1951	25
1952	13
1953	26
1954	22
1955	16
1956	14
1957	7
1958	16
1959	18
1960	17
1961	13
1962	15
1963	13
1964	11
1965	16
1966	15
1967	7
1968	9
1969	16
1970	7
1971	13
1972	18
1973	8
1974	9
1975	11
1976	6
1977	4
1978	10
1979	13
1980	12
1981	10
1982	6
1983	22
1984	11
1985	27
1986	9
1987	14
1988	13
1989	18
1990	10
1991	7

All-Time Record Progression

5 new records

5 all-time records were set at Crow Agency between 15 February 1936 and 3 February 1989. Each dot is a new record.

When Crow Agency set new all-time records
Date	Kind	Detail
1936-02-15	Record low minimum temperature	Record low minimum temperature -45.6 C (-50.1 F)
1936-07-05	Record high maximum temperature	Record high maximum temperature 43.3 C (109.9 F)
1957-04-23	Record daily precipitation	Record daily precipitation 89.2 mm (3.5 in)
1983-12-24	Record low maximum temperature	Record low maximum temperature -27.2 C (-17.0 F)
1989-02-03	Record low maximum temperature	Record low maximum temperature -35.0 C (-31.0 F)

Wettest Day of Each Month

Apr: 89.2 mm (3.5 in)

The wettest day on record for each calendar month at Crow Agency. The most was 89.2 mm (3.5 in) on 23 April 1957.

Record daily precipitation for each month at Crow Agency
Month	Record daily precipitation (mm)	Date
Jan	33.0 mm (1.3 in)	9 January 1932
Feb	30.5 mm (1.2 in)	13 February 1904
Mar	43.2 mm (1.7 in)	10 March 1935
Apr	89.2 mm (3.5 in)	23 April 1957
May	54.4 mm (2.1 in)	18 May 1978
Jun	76.2 mm (3.0 in)	15 June 1922
Jul	58.4 mm (2.3 in)	23 July 1923
Aug	76.7 mm (3.0 in)	29 August 1964
Sep	65.0 mm (2.6 in)	12 September 1978
Oct	61.0 mm (2.4 in)	12 October 1928
Nov	33.0 mm (1.3 in)	20 November 1926
Dec	35.6 mm (1.4 in)	11 December 1933

Period of Record Coverage

1898 to 1991

92 years of record at Crow Agency, 1898 to 1991. 16 years have data for under 90 percent of days and are left out of rankings: 1898, 1910, 1917, 1976, 1977, 1978, 1979, 1980 and others.

Days with data per year at Crow Agency
Year	Days with data	Share of year	Complete
1898	274	75%	No
1899	365	100%	Yes
1900	365	100%	Yes
1901	360	99%	Yes
1902	362	99%	Yes
1903	363	99%	Yes
1904	364	99%	Yes
1905	365	100%	Yes
1906	364	100%	Yes
1907	364	100%	Yes
1908	345	94%	Yes
1909	364	100%	Yes
1910	324	89%	No
1911	340	93%	Yes
1912	361	99%	Yes
1913	351	96%	Yes
1914	357	98%	Yes
1917	165	45%	No
1918	364	100%	Yes
1919	360	99%	Yes
1920	359	98%	Yes
1921	363	99%	Yes
1922	360	99%	Yes
1923	363	99%	Yes
1924	365	100%	Yes
1925	354	97%	Yes
1926	354	97%	Yes
1927	352	96%	Yes
1928	347	95%	Yes
1929	356	98%	Yes
1930	364	100%	Yes
1931	349	96%	Yes
1932	348	95%	Yes
1933	348	95%	Yes
1934	365	100%	Yes
1935	359	98%	Yes
1936	363	99%	Yes
1937	358	98%	Yes
1938	365	100%	Yes
1939	364	100%	Yes
1940	366	100%	Yes
1941	364	100%	Yes
1942	365	100%	Yes
1943	364	100%	Yes
1944	364	99%	Yes
1945	364	100%	Yes
1946	363	99%	Yes
1947	364	100%	Yes
1948	363	99%	Yes
1949	358	98%	Yes
1950	359	98%	Yes
1951	346	95%	Yes
1952	349	95%	Yes
1953	345	95%	Yes
1954	351	96%	Yes
1955	355	97%	Yes
1956	362	99%	Yes
1957	359	98%	Yes
1958	363	99%	Yes
1959	345	95%	Yes
1960	359	98%	Yes
1961	359	98%	Yes
1962	353	97%	Yes
1963	336	92%	Yes
1964	331	90%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	362	99%	Yes
1969	353	97%	Yes
1970	364	100%	Yes
1971	362	99%	Yes
1972	363	99%	Yes
1973	365	100%	Yes
1974	356	98%	Yes
1975	347	95%	Yes
1976	283	77%	No
1977	321	88%	No
1978	304	83%	No
1979	318	87%	No
1980	258	70%	No
1981	260	71%	No
1982	252	69%	No
1983	277	76%	No
1984	245	67%	No
1985	316	87%	No
1986	360	99%	Yes
1987	364	100%	Yes
1988	350	96%	Yes
1989	239	65%	No
1990	184	50%	No
1991	133	36%	No

Latest Records

Latest records at Crow Agency
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 June 1991	Crow Agency, US	daily low min	2.8 C (37.0 F)	1.1 C (2.0 F)	37 years	23 of 100 (Routine)
16 June 1991	Crow Agency, US	daily low min	-0.6 C (30.9 F)	2.3 C (4.1 F)	45 years	28 of 100 (Routine)
15 June 1991	Crow Agency, US	daily low min	-0.6 C (30.9 F)	2.3 C (4.1 F)	88 years	41 of 100 (Notable)
27 May 1991	Crow Agency, US	daily low min	-2.2 C (28.0 F)	2.2 C (4.0 F)	58 years	31 of 100 (Routine)
5 May 1991	Crow Agency, US	daily low min	-5.6 C (21.9 F)	1.2 C (2.2 F)	84 years	37 of 100 (Notable)
1 May 1991	Crow Agency, US	daily low min	-7.8 C (18.0 F)	0.6 C (1.1 F)	80 years	34 of 100 (Routine)
15 April 1991	Crow Agency, US	daily low min	-9.4 C (15.1 F)	1.1 C (2.0 F)	80 years	35 of 100 (Notable)
11 April 1991	Crow Agency, US	daily rain	25.4 mm (1.0 in)	9.9 mm (0.39 in)	25 years	27 of 100 (Routine)
22 February 1991	Crow Agency, US	daily high max (Tie)	16.7 C (62.1 F)	tie	32 years	4 of 100 (Routine)
30 December 1990	Crow Agency, US	daily low min	-38.9 C (-38.0 F)	5.0 C (9.0 F)	12 years	18 of 100 (Routine)
26 December 1990	Crow Agency, US	daily low min (Tie)	-30.0 C (-22.0 F)	tie	39 years	5 of 100 (Routine)
21 December 1990	Crow Agency, US	daily low max	-25.0 C (-13.0 F)	3.3 C (5.9 F)	7 years	15 of 100 (Routine)
20 December 1990	Crow Agency, US	daily low max	-23.9 C (-11.0 F)	5.0 C (9.0 F)	7 years	17 of 100 (Routine)
11 December 1990	Crow Agency, US	daily high max	18.3 C (64.9 F)	3.9 C (7.0 F)	9 years	16 of 100 (Routine)
26 November 1990	Crow Agency, US	daily high max	19.4 C (66.9 F)	1.6 C (2.9 F)	56 years	28 of 100 (Routine)
21 November 1990	Crow Agency, US	daily rain (Tie)	15.2 mm (0.6 in)	tie	64 years	7 of 100 (Routine)
15 November 1990	Crow Agency, US	daily high max	24.4 C (75.9 F)	1.1 C (2.0 F)	15 years	14 of 100 (Routine)
7 November 1990	Crow Agency, US	daily low min (Tie)	-15.0 C (5.0 F)	tie	19 years	3 of 100 (Routine)
30 October 1990	Crow Agency, US	daily high max	29.4 C (84.9 F)	0.5 C (0.9 F)	40 years	21 of 100 (Routine)
26 October 1990	Crow Agency, US	daily high max	27.8 C (82.0 F)	0.6 C (1.1 F)	7 years	11 of 100 (Routine)

Climate Trend

70 complete years, 1899 to 1987

One stripe for each of 70 complete years at Crow Agency, 1899 to 1987. Blue stripes are years cooler than the station's own mean of 7.8 C (46.0 F); red stripes are warmer. The coolest year was 1927, at 4.9 C (40.9 F), and the warmest was 1934, at 10.4 C (50.7 F). The strongest colour marks a difference of 2.9 C (5.2 F).

Annual mean temperature at Crow Agency as warming stripes, 1899 to 1987
Year	Annual mean temperature	Difference from the station mean
1899	6.2 C	-1.60 C
1900	8.6 C	+0.85 C
1901	8.7 C	+0.94 C
1902	7.6 C	-0.15 C
1903	7.7 C	-0.04 C
1904	8.0 C	+0.21 C
1905	7.4 C	-0.43 C
1906	7.6 C	-0.15 C
1907	6.9 C	-0.85 C
1909	6.7 C	-1.10 C
1912	6.7 C	-1.11 C
1914	8.4 C	+0.59 C
1918	8.3 C	+0.50 C
1919	7.4 C	-0.41 C
1921	9.4 C	+1.62 C
1922	6.9 C	-0.89 C
1923	8.3 C	+0.53 C
1924	7.2 C	-0.62 C
1925	8.7 C	+0.89 C
1926	8.9 C	+1.10 C
1927	4.9 C	-2.85 C
1928	6.8 C	-0.98 C
1929	6.5 C	-1.26 C
1930	8.5 C	+0.74 C
1931	8.8 C	+1.02 C
1934	10.4 C	+2.63 C
1935	8.2 C	+0.37 C
1936	7.6 C	-0.20 C
1937	7.6 C	-0.19 C
1938	8.4 C	+0.60 C
1939	9.9 C	+2.14 C
1940	8.7 C	+0.96 C
1941	8.5 C	+0.73 C
1942	7.4 C	-0.34 C
1943	7.4 C	-0.38 C
1944	6.9 C	-0.93 C
1945	7.5 C	-0.30 C
1946	8.4 C	+0.60 C
1947	7.7 C	-0.09 C
1948	7.9 C	+0.09 C
1949	6.9 C	-0.89 C
1950	5.9 C	-1.86 C
1951	5.7 C	-2.06 C
1952	7.8 C	+0.05 C
1953	9.5 C	+1.70 C
1954	8.0 C	+0.23 C
1955	6.8 C	-1.00 C
1956	8.1 C	+0.31 C
1957	7.8 C	+0.01 C
1958	8.7 C	+0.91 C
1960	7.9 C	+0.14 C
1961	8.5 C	+0.68 C
1962	7.8 C	+0.04 C
1965	7.4 C	-0.36 C
1966	7.8 C	+0.03 C
1967	8.4 C	+0.61 C
1968	7.5 C	-0.31 C
1969	7.0 C	-0.83 C
1970	7.5 C	-0.27 C
1971	7.6 C	-0.23 C
1972	7.6 C	-0.22 C
1973	8.2 C	+0.43 C
1974	9.1 C	+1.27 C
1975	7.0 C	-0.74 C
1977	8.7 C	+0.96 C
1978	6.5 C	-1.24 C
1979	7.6 C	-0.14 C
1985	6.1 C	-1.73 C
1986	8.6 C	+0.82 C
1987	9.2 C	+1.46 C

The fitted trend in annual mean temperature here over 1899 to 1987 is 0.02 C (-0.08 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.03 F (-0.15 to 0.21) per decade. The slope is a straight line fitted to 70 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Crow Agency
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.02 C (-0.08 to 0.11) per decade	0.03 F (-0.15 to 0.21) per decade	1899 to 1987	70	Not clearly different from zero
Mean daily maximum	0.09 C (-0.04 to 0.22) per decade	0.2 F (-0.1 to 0.4) per decade	1899 to 1987	70	Not clearly different from zero
Mean daily minimum	-0.06 C (-0.16 to 0.04) per decade	-0.1 F (-0.3 to 0.1) per decade	1899 to 1987	70	Not clearly different from zero

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

1898 to 1991

Yearly extremes at Crow Agency: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	1936	38.9 C (102.0 F)	92
Coldest night (TNn)	-45.6 C (-50.1 F)	1936	-34.4 C (-29.9 F)	92
Wettest day (Rx1day)	89.2 mm (3.5 in)	1957	33.0 mm (1.3 in)	92
Wettest five days (Rx5day)	124.8 mm (4.9 in)	1978	49.5 mm (1.9 in)	92
Longest dry spell (CDD)	97 days	1922	34 days	92

Hottest day (TXx)

The hottest day of the year at Crow Agency, 1898 to 1991. The record is 43.3 C (109.9 F) in 1936, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Crow Agency by year
Year	Hottest day (TXx)
1898	36.1 C (97.0 F)
1899	35.6 C (96.1 F)
1900	38.3 C (100.9 F)
1901	38.3 C (100.9 F)
1902	36.1 C (97.0 F)
1903	37.8 C (100.0 F)
1904	36.7 C (98.1 F)
1905	37.8 C (100.0 F)
1906	37.8 C (100.0 F)
1907	35.6 C (96.1 F)
1908	38.3 C (100.9 F)
1909	38.3 C (100.9 F)
1910	40.0 C (104.0 F)
1911	36.7 C (98.1 F)
1912	36.1 C (97.0 F)
1913	36.1 C (97.0 F)
1914	36.1 C (97.0 F)
1917	41.1 C (106.0 F)
1918	40.6 C (105.1 F)
1919	41.7 C (107.1 F)
1920	40.0 C (104.0 F)
1921	41.7 C (107.1 F)
1922	38.3 C (100.9 F)
1923	40.0 C (104.0 F)
1924	38.3 C (100.9 F)
1925	40.0 C (104.0 F)
1926	40.0 C (104.0 F)
1927	34.4 C (93.9 F)
1928	37.8 C (100.0 F)
1929	40.6 C (105.1 F)
1930	42.8 C (109.0 F)
1931	42.8 C (109.0 F)
1932	39.4 C (102.9 F)
1933	40.6 C (105.1 F)
1934	41.1 C (106.0 F)
1935	40.6 C (105.1 F)
1936	43.3 C (109.9 F)
1937	42.2 C (108.0 F)
1938	38.9 C (102.0 F)
1939	42.2 C (108.0 F)
1940	41.1 C (106.0 F)
1941	39.4 C (102.9 F)
1942	39.4 C (102.9 F)
1943	40.0 C (104.0 F)
1944	36.1 C (97.0 F)
1945	38.9 C (102.0 F)
1946	38.9 C (102.0 F)
1947	41.1 C (106.0 F)
1948	39.4 C (102.9 F)
1949	42.2 C (108.0 F)
1950	38.3 C (100.9 F)
1951	38.9 C (102.0 F)
1952	38.3 C (100.9 F)
1953	40.6 C (105.1 F)
1954	39.4 C (102.9 F)
1955	38.9 C (102.0 F)
1956	38.9 C (102.0 F)
1957	39.4 C (102.9 F)
1958	37.8 C (100.0 F)
1959	40.6 C (105.1 F)
1960	41.7 C (107.1 F)
1961	42.8 C (109.0 F)
1962	38.3 C (100.9 F)
1963	40.0 C (104.0 F)
1964	40.6 C (105.1 F)
1965	41.1 C (106.0 F)
1966	41.7 C (107.1 F)
1967	38.3 C (100.9 F)
1968	36.7 C (98.1 F)
1969	38.9 C (102.0 F)
1970	38.9 C (102.0 F)
1971	40.6 C (105.1 F)
1972	37.2 C (99.0 F)
1973	38.9 C (102.0 F)
1974	38.3 C (100.9 F)
1975	38.9 C (102.0 F)
1976	40.0 C (104.0 F)
1977	37.8 C (100.0 F)
1978	38.9 C (102.0 F)
1979	38.3 C (100.9 F)
1980	37.2 C (99.0 F)
1981	36.1 C (97.0 F)
1982	37.8 C (100.0 F)
1983	40.6 C (105.1 F)
1984	38.9 C (102.0 F)
1985	38.3 C (100.9 F)
1986	37.8 C (100.0 F)
1987	37.2 C (99.0 F)
1988	40.6 C (105.1 F)
1989	40.6 C (105.1 F)
1990	38.9 C (102.0 F)
1991	40.0 C (104.0 F)

Coldest night (TNn)

The coldest night of the year at Crow Agency, 1898 to 1991. The record is -45.6 C (-50.1 F) in 1936, marked on the chart; the median year is -34.4 C (-29.9 F).

Coldest night (TNn) at Crow Agency by year
Year	Coldest night (TNn)
1898	-27.2 C (-17.0 F)
1899	-43.3 C (-45.9 F)
1900	-32.8 C (-27.0 F)
1901	-33.3 C (-27.9 F)
1902	-29.4 C (-20.9 F)
1903	-30.0 C (-22.0 F)
1904	-31.7 C (-25.1 F)
1905	-38.3 C (-36.9 F)
1906	-28.9 C (-20.0 F)
1907	-35.0 C (-31.0 F)
1908	-27.2 C (-17.0 F)
1909	-33.3 C (-27.9 F)
1910	-37.2 C (-35.0 F)
1911	-35.0 C (-31.0 F)
1912	-37.8 C (-36.0 F)
1913	-34.4 C (-29.9 F)
1914	-33.9 C (-29.0 F)
1917	-24.4 C (-11.9 F)
1918	-37.8 C (-36.0 F)
1919	-41.1 C (-42.0 F)
1920	-35.0 C (-31.0 F)
1921	-28.9 C (-20.0 F)
1922	-36.7 C (-34.1 F)
1923	-37.8 C (-36.0 F)
1924	-41.7 C (-43.1 F)
1925	-28.9 C (-20.0 F)
1926	-31.7 C (-25.1 F)
1927	-41.7 C (-43.1 F)
1928	-37.2 C (-35.0 F)
1929	-39.4 C (-38.9 F)
1930	-42.2 C (-44.0 F)
1931	-27.8 C (-18.0 F)
1932	-36.7 C (-34.1 F)
1933	-40.6 C (-41.1 F)
1934	-27.8 C (-18.0 F)
1935	-35.6 C (-32.1 F)
1936	-45.6 C (-50.1 F)
1937	-38.9 C (-38.0 F)
1938	-30.0 C (-22.0 F)
1939	-34.4 C (-29.9 F)
1940	-37.2 C (-35.0 F)
1941	-30.0 C (-22.0 F)
1942	-37.8 C (-36.0 F)
1943	-33.3 C (-27.9 F)
1944	-34.4 C (-29.9 F)
1945	-32.8 C (-27.0 F)
1946	-30.0 C (-22.0 F)
1947	-29.4 C (-20.9 F)
1948	-31.1 C (-24.0 F)
1949	-38.9 C (-38.0 F)
1950	-37.2 C (-35.0 F)
1951	-36.7 C (-34.1 F)
1952	-33.9 C (-29.0 F)
1953	-23.9 C (-11.0 F)
1954	-40.6 C (-41.1 F)
1955	-32.2 C (-26.0 F)
1956	-33.9 C (-29.0 F)
1957	-37.2 C (-35.0 F)
1958	-24.4 C (-11.9 F)
1959	-36.7 C (-34.1 F)
1960	-31.1 C (-24.0 F)
1961	-29.4 C (-20.9 F)
1962	-36.1 C (-33.0 F)
1963	-39.4 C (-38.9 F)
1964	-35.6 C (-32.1 F)
1965	-33.3 C (-27.9 F)
1966	-32.8 C (-27.0 F)
1967	-30.6 C (-23.1 F)
1968	-31.7 C (-25.1 F)
1969	-37.2 C (-35.0 F)
1970	-30.6 C (-23.1 F)
1971	-35.0 C (-31.0 F)
1972	-35.0 C (-31.0 F)
1973	-35.6 C (-32.1 F)
1974	-33.3 C (-27.9 F)
1975	-30.0 C (-22.0 F)
1976	-29.4 C (-20.9 F)
1977	-32.2 C (-26.0 F)
1978	-35.0 C (-31.0 F)
1979	-33.9 C (-29.0 F)
1980	-34.4 C (-29.9 F)
1981	-34.4 C (-29.9 F)
1982	-36.7 C (-34.1 F)
1983	-42.2 C (-44.0 F)
1984	-33.3 C (-27.9 F)
1985	-35.6 C (-32.1 F)
1986	-31.1 C (-24.0 F)
1987	-22.8 C (-9.0 F)
1988	-30.6 C (-23.1 F)
1989	-41.1 C (-42.0 F)
1990	-39.4 C (-38.9 F)
1991	-32.8 C (-27.0 F)

Wettest day (Rx1day)

The wettest day of the year at Crow Agency, 1898 to 1991. The record is 89.2 mm (3.5 in) in 1957, marked on the chart; the median year is 33.0 mm (1.3 in).

Wettest day (Rx1day) at Crow Agency by year
Year	Wettest day (Rx1day)
1898	33.3 mm (1.3 in)
1899	20.3 mm (0.8 in)
1900	29.2 mm (1.1 in)
1901	18.0 mm (0.7 in)
1902	33.0 mm (1.3 in)
1903	39.4 mm (1.6 in)
1904	30.5 mm (1.2 in)
1905	48.3 mm (1.9 in)
1906	40.6 mm (1.6 in)
1907	38.6 mm (1.5 in)
1908	50.8 mm (2.0 in)
1909	17.8 mm (0.7 in)
1910	30.7 mm (1.2 in)
1911	17.3 mm (0.7 in)
1912	49.5 mm (1.9 in)
1913	35.6 mm (1.4 in)
1914	29.7 mm (1.2 in)
1917	20.3 mm (0.8 in)
1918	22.9 mm (0.9 in)
1919	31.8 mm (1.3 in)
1920	26.7 mm (1.1 in)
1921	50.8 mm (2.0 in)
1922	76.2 mm (3.0 in)
1923	58.4 mm (2.3 in)
1924	25.4 mm (1.0 in)
1925	23.4 mm (0.9 in)
1926	40.6 mm (1.6 in)
1927	43.2 mm (1.7 in)
1928	61.0 mm (2.4 in)
1929	22.9 mm (0.9 in)
1930	25.4 mm (1.0 in)
1931	38.1 mm (1.5 in)
1932	43.2 mm (1.7 in)
1933	35.6 mm (1.4 in)
1934	16.5 mm (0.6 in)
1935	43.2 mm (1.7 in)
1936	29.2 mm (1.1 in)
1937	33.0 mm (1.3 in)
1938	50.3 mm (2.0 in)
1939	41.9 mm (1.6 in)
1940	33.5 mm (1.3 in)
1941	50.5 mm (2.0 in)
1942	21.6 mm (0.9 in)
1943	36.3 mm (1.4 in)
1944	34.8 mm (1.4 in)
1945	21.8 mm (0.9 in)
1946	50.5 mm (2.0 in)
1947	34.0 mm (1.3 in)
1948	35.3 mm (1.4 in)
1949	32.3 mm (1.3 in)
1950	30.0 mm (1.2 in)
1951	19.8 mm (0.8 in)
1952	22.9 mm (0.9 in)
1953	36.1 mm (1.4 in)
1954	14.7 mm (0.6 in)
1955	61.2 mm (2.4 in)
1956	21.6 mm (0.9 in)
1957	89.2 mm (3.5 in)
1958	26.7 mm (1.1 in)
1959	20.3 mm (0.8 in)
1960	20.6 mm (0.8 in)
1961	33.0 mm (1.3 in)
1962	32.8 mm (1.3 in)
1963	22.9 mm (0.9 in)
1964	76.7 mm (3.0 in)
1965	20.8 mm (0.8 in)
1966	28.7 mm (1.1 in)
1967	30.2 mm (1.2 in)
1968	70.1 mm (2.8 in)
1969	57.9 mm (2.3 in)
1970	52.1 mm (2.1 in)
1971	43.7 mm (1.7 in)
1972	20.3 mm (0.8 in)
1973	67.6 mm (2.7 in)
1974	42.9 mm (1.7 in)
1975	29.7 mm (1.2 in)
1976	36.8 mm (1.4 in)
1977	27.9 mm (1.1 in)
1978	65.0 mm (2.6 in)
1979	19.1 mm (0.8 in)
1980	27.2 mm (1.1 in)
1981	33.8 mm (1.3 in)
1982	68.6 mm (2.7 in)
1983	26.4 mm (1.0 in)
1984	16.0 mm (0.6 in)
1985	36.8 mm (1.4 in)
1986	56.1 mm (2.2 in)
1987	30.0 mm (1.2 in)
1988	39.4 mm (1.6 in)
1989	22.1 mm (0.9 in)
1990	29.0 mm (1.1 in)
1991	29.0 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Crow Agency, 1898 to 1991. The record is 124.8 mm (4.9 in) in 1978, marked on the chart; the median year is 49.5 mm (1.9 in).

Wettest five days (Rx5day) at Crow Agency by year
Year	Wettest five days (Rx5day)
1898	41.7 mm (1.6 in)
1899	38.3 mm (1.5 in)
1900	51.8 mm (2.0 in)
1901	44.2 mm (1.7 in)
1902	57.1 mm (2.2 in)
1903	52.1 mm (2.1 in)
1904	33.0 mm (1.3 in)
1905	71.1 mm (2.8 in)
1906	53.8 mm (2.1 in)
1907	62.3 mm (2.5 in)
1908	63.5 mm (2.5 in)
1909	29.3 mm (1.2 in)
1910	57.6 mm (2.3 in)
1911	19.3 mm (0.8 in)
1912	104.1 mm (4.1 in)
1913	48.6 mm (1.9 in)
1914	43.1 mm (1.7 in)
1917	22.8 mm (0.9 in)
1918	39.4 mm (1.6 in)
1919	31.8 mm (1.3 in)
1920	57.2 mm (2.3 in)
1921	104.1 mm (4.1 in)
1922	91.5 mm (3.6 in)
1923	97.7 mm (3.8 in)
1924	48.3 mm (1.9 in)
1925	40.6 mm (1.6 in)
1926	40.6 mm (1.6 in)
1927	80.1 mm (3.2 in)
1928	61.0 mm (2.4 in)
1929	36.8 mm (1.4 in)
1930	33.0 mm (1.3 in)
1931	53.8 mm (2.1 in)
1932	60.2 mm (2.4 in)
1933	67.3 mm (2.6 in)
1934	24.7 mm (1.0 in)
1935	43.2 mm (1.7 in)
1936	39.4 mm (1.6 in)
1937	33.0 mm (1.3 in)
1938	67.6 mm (2.7 in)
1939	49.5 mm (1.9 in)
1940	49.5 mm (1.9 in)
1941	74.1 mm (2.9 in)
1942	44.4 mm (1.7 in)
1943	66.1 mm (2.6 in)
1944	67.3 mm (2.6 in)
1945	46.0 mm (1.8 in)
1946	76.2 mm (3.0 in)
1947	61.4 mm (2.4 in)
1948	69.0 mm (2.7 in)
1949	34.6 mm (1.4 in)
1950	35.9 mm (1.4 in)
1951	40.1 mm (1.6 in)
1952	29.0 mm (1.1 in)
1953	62.5 mm (2.5 in)
1954	24.4 mm (1.0 in)
1955	104.4 mm (4.1 in)
1956	29.0 mm (1.1 in)
1957	98.6 mm (3.9 in)
1958	48.8 mm (1.9 in)
1959	32.3 mm (1.3 in)
1960	25.5 mm (1.0 in)
1961	59.7 mm (2.4 in)
1962	36.3 mm (1.4 in)
1963	47.3 mm (1.9 in)
1964	78.0 mm (3.1 in)
1965	49.5 mm (1.9 in)
1966	30.4 mm (1.2 in)
1967	78.5 mm (3.1 in)
1968	88.9 mm (3.5 in)
1969	117.1 mm (4.6 in)
1970	77.1 mm (3.0 in)
1971	66.5 mm (2.6 in)
1972	31.5 mm (1.2 in)
1973	106.5 mm (4.2 in)
1974	67.0 mm (2.6 in)
1975	46.6 mm (1.8 in)
1976	49.2 mm (1.9 in)
1977	51.8 mm (2.0 in)
1978	124.8 mm (4.9 in)
1979	33.6 mm (1.3 in)
1980	35.7 mm (1.4 in)
1981	73.2 mm (2.9 in)
1982	82.1 mm (3.2 in)
1983	36.8 mm (1.4 in)
1984	27.4 mm (1.1 in)
1985	68.0 mm (2.7 in)
1986	56.1 mm (2.2 in)
1987	62.2 mm (2.4 in)
1988	41.9 mm (1.6 in)
1989	34.6 mm (1.4 in)
1990	15.2 mm (0.6 in)
1991	55.2 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Crow Agency, 1898 to 1991. The record is 97 days in 1922, marked on the chart; the median year is 34 days.

Longest dry spell (CDD) at Crow Agency by year
Year	Longest dry spell (CDD)
1898	25 days
1899	25 days
1900	42 days
1901	42 days
1902	32 days
1903	24 days
1904	32 days
1905	73 days
1906	21 days
1907	26 days
1908	36 days
1909	29 days
1910	31 days
1911	26 days
1912	30 days
1913	49 days
1914	61 days
1917	49 days
1918	40 days
1919	39 days
1920	80 days
1921	93 days
1922	97 days
1923	28 days
1924	48 days
1925	51 days
1926	37 days
1927	32 days
1928	39 days
1929	36 days
1930	31 days
1931	48 days
1932	37 days
1933	77 days
1934	58 days
1935	28 days
1936	34 days
1937	46 days
1938	36 days
1939	43 days
1940	50 days
1941	28 days
1942	27 days
1943	29 days
1944	31 days
1945	29 days
1946	33 days
1947	41 days
1948	45 days
1949	26 days
1950	27 days
1951	19 days
1952	35 days
1953	20 days
1954	41 days
1955	37 days
1956	27 days
1957	44 days
1958	33 days
1959	32 days
1960	44 days
1961	28 days
1962	32 days
1963	38 days
1964	40 days
1965	38 days
1966	28 days
1967	47 days
1968	22 days
1969	75 days
1970	48 days
1971	57 days
1972	25 days
1973	29 days
1974	29 days
1975	19 days
1976	32 days
1977	36 days
1978	25 days
1979	34 days
1980	38 days
1981	30 days
1982	17 days
1983	30 days
1984	45 days
1985	20 days
1986	24 days
1987	36 days
1988	34 days
1989	22 days
1990	29 days
1991	18 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

70 years with a frost

Across 70 years with a frost, the median last spring frost at Crow Agency falls on 15 May and the median first autumn frost on 17 September, which leaves a median of 126 days between them.

In 1949 to 1987 the median growing season was 126 days. That is 5 days fewer than in 1899 to 1938.

Fitted over all years, the growing season changes by 0.0 days per decade at this station.

Frost dates and growing season at Crow Agency
Measure	Median, all years	Earliest period (1899 to 1938)	Recent period (1949 to 1987)	Recent against earliest	Fitted trend
Last spring frost	15 May	14 May	16 May	2 days later	-0.2 days per decade
First autumn frost	17 September	21 September	17 September	4 days earlier	-0.2 days per decade
Growing days	126 days	131 days	126 days	5 days fewer	0.0 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

83 years, 1899 to 1988

A day with at least 33.4 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 92.0 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Crow Agency: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	33.4 mm (1.3 in)
5 years	47.2 mm (1.9 in)
10 years	57.0 mm (2.2 in)
25 years	70.3 mm (2.8 in)
50 years	80.9 mm (3.2 in)
100 years	92.0 mm (3.6 in)	Longer than the 83 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, 83 years of values from 1899 to 1988.

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: 89.2 mm (3.5 in) in 1957; 76.7 mm (3.0 in) in 1964; 76.2 mm (3.0 in) in 1922.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

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