Lame Deer Weather Records (USC00244839)

Record envelope, standing records and threshold days for Lame Deer (USC00244839), Montana, United States, with 96 years of record.

Key Facts for Lame Deer

Lame Deer (USC00244839) is a weather station in Montana, United States at 45.63 latitude and -106.66 longitude, 1,006 m (3,300 ft) above sea level.
The station reports from 1903 to 1998, 96 years of record.
1,464 records set at Lame Deer still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Lame Deer set a daily record high maximum temperature of 35.6 C (96.1 F) on 30 May 1998.

About the Station

Location: Montana, United States, 45.63 latitude, -106.66 longitude.
Elevation: 1,006 m (3,300 ft).
Period of record: 1903 to 1998, 96 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 Lame Deer. 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 Lame Deer, 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)	-42.2 C (-44.0 F)	n/a	n/a
Feb	22.8 C (73.0 F)	-41.1 C (-42.0 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-34.4 C (-29.9 F)	n/a	n/a
Apr	32.2 C (90.0 F)	-22.8 C (-9.0 F)	n/a	n/a
May	37.8 C (100.0 F)	-11.1 C (12.0 F)	n/a	n/a
Jun	39.4 C (102.9 F)	-5.6 C (21.9 F)	n/a	n/a
Jul	42.8 C (109.0 F)	-1.1 C (30.0 F)	n/a	n/a
Aug	42.8 C (109.0 F)	-3.3 C (26.1 F)	n/a	n/a
Sep	40.0 C (104.0 F)	-11.7 C (10.9 F)	n/a	n/a
Oct	33.9 C (93.0 F)	-30.0 C (-22.0 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-37.2 C (-35.0 F)	n/a	n/a
Dec	23.3 C (73.9 F)	-46.1 C (-51.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Lame Deer still stand. 1950 holds the most, with 46.

Standing records at Lame Deer by the year they were set
Year set	Standing records
1903	29
1904	7
1905	20
1906	31
1907	2
1937	14
1938	28
1939	33
1940	35
1941	24
1942	22
1943	36
1944	14
1945	22
1946	23
1947	24
1948	29
1949	22
1950	46
1951	44
1952	24
1953	27
1954	35
1955	24
1956	21
1957	11
1958	28
1959	23
1960	33
1961	31
1962	27
1963	26
1964	13
1965	23
1966	28
1967	8
1968	6
1969	14
1970	7
1971	8
1972	36
1973	14
1974	19
1975	18
1976	13
1977	14
1978	17
1979	6
1980	20
1981	14
1982	28
1983	28
1984	34
1985	32
1986	25
1987	18
1988	4
1989	16
1990	30
1991	25
1992	35
1993	40
1994	10
1996	6
1997	30
1998	10

All-Time Record Progression

6 new records

6 all-time records were set at Lame Deer between 11 January 1963 and 22 December 1989. Each dot is a new record.

When Lame Deer set new all-time records
Date	Kind	Detail
1963-01-11	Record low maximum temperature	Record low maximum temperature -24.4 C (-11.9 F)
1971-02-07	Record low minimum temperature	Record low minimum temperature -41.1 C (-42.0 F)
1979-02-06	Record snow depth	Record snow depth 61.0 cm (24.0 in)
1983-12-23	Record low maximum temperature	Record low maximum temperature -26.1 C (-15.0 F)
1983-12-24	Record low minimum temperature	Record low minimum temperature -44.4 C (-47.9 F)
1989-12-22	Record low minimum temperature	Record low minimum temperature -46.1 C (-51.0 F)

Wettest Day of Each Month

Jun: 105.4 mm (4.1 in)

The wettest day on record for each calendar month at Lame Deer. The most was 105.4 mm (4.1 in) on 17 June 1944.

Record daily precipitation for each month at Lame Deer
Month	Record daily precipitation (mm)	Date
Jan	20.3 mm (0.8 in)	29 January 1904
Feb	20.3 mm (0.8 in)	14 February 1904
Mar	29.2 mm (1.1 in)	17 March 1990
Apr	73.7 mm (2.9 in)	20 April 1973
May	81.3 mm (3.2 in)	18 May 1978
Jun	105.4 mm (4.1 in)	17 June 1944
Jul	46.2 mm (1.8 in)	26 July 1982
Aug	46.2 mm (1.8 in)	23 August 1968
Sep	45.7 mm (1.8 in)	30 September 1905
Oct	51.1 mm (2.0 in)	31 October 1974
Nov	28.4 mm (1.1 in)	1 November 1957
Dec	21.1 mm (0.8 in)	19 December 1989

Period of Record Coverage

1903 to 1998

66 years of record at Lame Deer, 1903 to 1998. 27 years have data for under 90 percent of days and are left out of rankings: 1904, 1905, 1906, 1907, 1937, 1949, 1956, 1957 and others.

Days with data per year at Lame Deer
Year	Days with data	Share of year	Complete
1903	343	94%	Yes
1904	279	76%	No
1905	293	80%	No
1906	318	87%	No
1907	23	6%	No
1937	184	50%	No
1938	344	94%	Yes
1939	365	100%	Yes
1940	353	96%	Yes
1941	364	100%	Yes
1942	359	98%	Yes
1943	350	96%	Yes
1944	364	99%	Yes
1945	364	100%	Yes
1946	364	100%	Yes
1947	364	100%	Yes
1948	361	99%	Yes
1949	322	88%	No
1950	360	99%	Yes
1951	364	100%	Yes
1952	353	96%	Yes
1953	359	98%	Yes
1954	356	98%	Yes
1955	356	98%	Yes
1956	327	89%	No
1957	232	64%	No
1958	307	84%	No
1959	332	91%	Yes
1960	361	99%	Yes
1961	365	100%	Yes
1962	363	99%	Yes
1963	365	100%	Yes
1964	364	99%	Yes
1965	364	100%	Yes
1966	317	87%	No
1967	296	81%	No
1968	253	69%	No
1969	245	67%	No
1970	277	76%	No
1971	157	43%	No
1972	362	99%	Yes
1973	330	90%	Yes
1974	362	99%	Yes
1975	300	82%	No
1976	356	97%	Yes
1977	354	97%	Yes
1978	290	79%	No
1979	243	67%	No
1980	331	90%	Yes
1981	340	93%	Yes
1982	342	94%	Yes
1983	354	97%	Yes
1984	342	93%	Yes
1985	266	73%	No
1986	294	81%	No
1987	243	67%	No
1988	75	20%	No
1989	180	49%	No
1990	342	94%	Yes
1991	349	96%	Yes
1992	351	96%	Yes
1993	353	97%	Yes
1994	294	81%	No
1996	87	24%	No
1997	238	65%	No
1998	60	16%	No

Latest Records

Latest records at Lame Deer
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1998	Lame Deer, US	daily high max	35.6 C (96.1 F)	1.2 C (2.2 F)	32 years	19 of 100 (Routine)
29 May 1998	Lame Deer, US	daily high max (Tie)	35.0 C (95.0 F)	tie	40 years	5 of 100 (Routine)
26 May 1998	Lame Deer, US	daily high max	33.9 C (93.0 F)	2.8 C (5.0 F)	32 years	22 of 100 (Routine)
20 May 1998	Lame Deer, US	daily high max	33.9 C (93.0 F)	0.6 C (1.1 F)	40 years	21 of 100 (Routine)
17 May 1998	Lame Deer, US	daily high max (Tie)	32.8 C (91.0 F)	tie	49 years	5 of 100 (Routine)
8 May 1998	Lame Deer, US	daily low min	-6.7 C (19.9 F)	1.1 C (2.0 F)	15 years	15 of 100 (Routine)
7 May 1998	Lame Deer, US	daily low min	-6.7 C (19.9 F)	1.7 C (3.1 F)	39 years	23 of 100 (Routine)
3 May 1998	Lame Deer, US	daily high max	31.7 C (89.1 F)	2.3 C (4.1 F)	59 years	29 of 100 (Routine)
24 April 1998	Lame Deer, US	daily high max	31.1 C (88.0 F)	1.7 C (3.1 F)	36 years	21 of 100 (Routine)
23 April 1998	Lame Deer, US	daily high max	30.6 C (87.1 F)	0.6 C (1.1 F)	55 years	25 of 100 (Routine)
7 April 1998	Lame Deer, US	daily high min (Tie)	2.8 C (37.0 F)	tie	20 years	3 of 100 (Routine)
5 April 1998	Lame Deer, US	daily high min	3.9 C (39.0 F)	0.6 C (1.1 F)	11 years	13 of 100 (Routine)
4 April 1998	Lame Deer, US	daily high min	5.6 C (42.1 F)	0.6 C (1.1 F)	40 years	22 of 100 (Routine)
31 October 1997	Lame Deer, US	daily high min	6.1 C (43.0 F)	2.2 C (4.0 F)	32 years	23 of 100 (Routine)
26 October 1997	Lame Deer, US	daily low min	-10.0 C (14.0 F)	0.6 C (1.1 F)	40 years	22 of 100 (Routine)
20 October 1997	Lame Deer, US	daily high min	8.9 C (48.0 F)	1.7 C (3.1 F)	42 years	24 of 100 (Routine)
25 September 1997	Lame Deer, US	daily high max	33.3 C (91.9 F)	1.6 C (2.9 F)	44 years	24 of 100 (Routine)
22 September 1997	Lame Deer, US	daily rain	13.0 mm (0.5 in)	6.9 mm (0.27 in)	32 years	20 of 100 (Routine)
10 September 1997	Lame Deer, US	daily high max (Tie)	34.4 C (93.9 F)	tie	31 years	4 of 100 (Routine)
31 August 1997	Lame Deer, US	daily high max (Tie)	39.4 C (102.9 F)	tie	43 years	5 of 100 (Routine)

Climate Trend

33 complete years, 1903 to 1993

One stripe for each of 33 complete years at Lame Deer, 1903 to 1993. Blue stripes are years cooler than the station's own mean of 7.3 C (45.1 F); red stripes are warmer. The coolest year was 1993, at 5.3 C (41.5 F), and the warmest was 1953, at 9.1 C (48.4 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Lame Deer as warming stripes, 1903 to 1993
Year	Annual mean temperature	Difference from the station mean
1903	7.8 C	+0.53 C
1939	7.9 C	+0.68 C
1941	7.9 C	+0.67 C
1942	7.1 C	-0.15 C
1943	7.6 C	+0.34 C
1944	7.0 C	-0.24 C
1945	6.6 C	-0.69 C
1946	7.7 C	+0.43 C
1947	6.9 C	-0.37 C
1948	7.7 C	+0.40 C
1950	5.9 C	-1.38 C
1952	7.8 C	+0.54 C
1953	9.1 C	+1.83 C
1954	8.1 C	+0.85 C
1955	6.6 C	-0.70 C
1958	8.4 C	+1.16 C
1959	7.0 C	-0.31 C
1960	7.8 C	+0.57 C
1961	8.4 C	+1.12 C
1962	7.6 C	+0.32 C
1963	8.3 C	+1.08 C
1964	7.2 C	-0.05 C
1965	7.1 C	-0.18 C
1972	6.2 C	-1.11 C
1974	7.7 C	+0.48 C
1977	7.0 C	-0.24 C
1982	5.4 C	-1.84 C
1983	7.1 C	-0.21 C
1984	6.6 C	-0.62 C
1990	6.6 C	-0.70 C
1991	7.1 C	-0.19 C
1992	7.2 C	-0.08 C
1993	5.3 C	-2.01 C

The annual mean temperature here has fallen by 0.18 C (0.04 to 0.33) per decade over 1903 to 1993. In Fahrenheit: 0.3 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Lame Deer
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.18 C (-0.33 to -0.04) per decade	-0.3 F (-0.6 to -0.1) per decade	1903 to 1993	33	Fall
Mean daily maximum	-0.1 C (-0.3 to 0.1) per decade	-0.2 F (-0.5 to 0.1) per decade	1903 to 1993	33	Not clearly different from zero
Mean daily minimum	-0.3 C (-0.4 to -0.1) per decade	-0.5 F (-0.7 to -0.2) per decade	1903 to 1993	33	Fall

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

1903 to 1998

Yearly extremes at Lame Deer: 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)	1949	38.3 C (100.9 F)	66
Coldest night (TNn)	-46.1 C (-51.0 F)	1989	-34.4 C (-29.9 F)	66
Wettest day (Rx1day)	105.4 mm (4.1 in)	1944	31.1 mm (1.2 in)	66
Wettest five days (Rx5day)	193.1 mm (7.6 in)	1978	50.5 mm (2.0 in)	66
Longest dry spell (CDD)	65 days	1992	29 days	66

Hottest day (TXx)

The hottest day of the year at Lame Deer, 1903 to 1998. The record is 42.8 C (109.0 F) in 1949, marked on the chart; the median year is 38.3 C (100.9 F).

Hottest day (TXx) at Lame Deer by year
Year	Hottest day (TXx)
1903	38.3 C (100.9 F)
1904	37.2 C (99.0 F)
1905	37.8 C (100.0 F)
1906	38.9 C (102.0 F)
1907	25.6 C (78.1 F)
1937	41.7 C (107.1 F)
1938	38.3 C (100.9 F)
1939	40.6 C (105.1 F)
1940	40.6 C (105.1 F)
1941	37.8 C (100.0 F)
1942	38.3 C (100.9 F)
1943	39.4 C (102.9 F)
1944	36.1 C (97.0 F)
1945	38.3 C (100.9 F)
1946	40.0 C (104.0 F)
1947	41.1 C (106.0 F)
1948	40.0 C (104.0 F)
1949	42.8 C (109.0 F)
1950	40.0 C (104.0 F)
1951	39.4 C (102.9 F)
1952	38.3 C (100.9 F)
1953	41.1 C (106.0 F)
1954	40.6 C (105.1 F)
1955	39.4 C (102.9 F)
1956	40.6 C (105.1 F)
1957	39.4 C (102.9 F)
1958	38.9 C (102.0 F)
1959	41.7 C (107.1 F)
1960	41.7 C (107.1 F)
1961	42.8 C (109.0 F)
1962	38.3 C (100.9 F)
1963	38.3 C (100.9 F)
1964	39.4 C (102.9 F)
1965	40.6 C (105.1 F)
1966	41.1 C (106.0 F)
1967	38.3 C (100.9 F)
1968	36.7 C (98.1 F)
1969	39.4 C (102.9 F)
1970	38.3 C (100.9 F)
1971	26.7 C (80.1 F)
1972	36.7 C (98.1 F)
1973	37.8 C (100.0 F)
1974	37.8 C (100.0 F)
1975	37.8 C (100.0 F)
1976	39.4 C (102.9 F)
1977	40.0 C (104.0 F)
1978	38.3 C (100.9 F)
1979	38.3 C (100.9 F)
1980	38.9 C (102.0 F)
1981	37.8 C (100.0 F)
1982	40.0 C (104.0 F)
1983	39.4 C (102.9 F)
1984	37.8 C (100.0 F)
1985	37.2 C (99.0 F)
1986	36.7 C (98.1 F)
1987	37.2 C (99.0 F)
1988	33.9 C (93.0 F)
1989	40.0 C (104.0 F)
1990	38.3 C (100.9 F)
1991	38.9 C (102.0 F)
1992	36.1 C (97.0 F)
1993	35.6 C (96.1 F)
1994	37.8 C (100.0 F)
1996	36.7 C (98.1 F)
1997	39.4 C (102.9 F)
1998	35.6 C (96.1 F)

Coldest night (TNn)

The coldest night of the year at Lame Deer, 1903 to 1998. The record is -46.1 C (-51.0 F) in 1989, marked on the chart; the median year is -34.4 C (-29.9 F).

Coldest night (TNn) at Lame Deer by year
Year	Coldest night (TNn)
1903	-28.9 C (-20.0 F)
1904	-32.2 C (-26.0 F)
1905	-40.0 C (-40.0 F)
1906	-29.4 C (-20.9 F)
1907	-11.7 C (10.9 F)
1937	-31.1 C (-24.0 F)
1938	-35.6 C (-32.1 F)
1939	-40.0 C (-40.0 F)
1940	-37.2 C (-35.0 F)
1941	-28.3 C (-18.9 F)
1942	-37.8 C (-36.0 F)
1943	-35.0 C (-31.0 F)
1944	-34.4 C (-29.9 F)
1945	-35.0 C (-31.0 F)
1946	-32.2 C (-26.0 F)
1947	-31.1 C (-24.0 F)
1948	-32.8 C (-27.0 F)
1949	-37.8 C (-36.0 F)
1950	-36.7 C (-34.1 F)
1951	-37.8 C (-36.0 F)
1952	-33.9 C (-29.0 F)
1953	-24.4 C (-11.9 F)
1954	-37.8 C (-36.0 F)
1955	-32.8 C (-27.0 F)
1956	-32.8 C (-27.0 F)
1957	-36.7 C (-34.1 F)
1958	-27.2 C (-17.0 F)
1959	-37.2 C (-35.0 F)
1960	-30.6 C (-23.1 F)
1961	-30.6 C (-23.1 F)
1962	-35.6 C (-32.1 F)
1963	-38.9 C (-38.0 F)
1964	-37.2 C (-35.0 F)
1965	-33.9 C (-29.0 F)
1966	-29.4 C (-20.9 F)
1967	-33.3 C (-27.9 F)
1968	-32.2 C (-26.0 F)
1969	-35.6 C (-32.1 F)
1970	-32.8 C (-27.0 F)
1971	-41.1 C (-42.0 F)
1972	-37.2 C (-35.0 F)
1973	-35.0 C (-31.0 F)
1974	-34.4 C (-29.9 F)
1975	-29.4 C (-20.9 F)
1976	-31.7 C (-25.1 F)
1977	-34.4 C (-29.9 F)
1978	-37.8 C (-36.0 F)
1979	-35.0 C (-31.0 F)
1980	-31.1 C (-24.0 F)
1981	-37.2 C (-35.0 F)
1982	-38.9 C (-38.0 F)
1983	-44.4 C (-47.9 F)
1984	-32.8 C (-27.0 F)
1985	-35.6 C (-32.1 F)
1986	-31.1 C (-24.0 F)
1987	-26.7 C (-16.1 F)
1988	-32.2 C (-26.0 F)
1989	-46.1 C (-51.0 F)
1990	-41.7 C (-43.1 F)
1991	-34.4 C (-29.9 F)
1992	-30.0 C (-22.0 F)
1993	-35.0 C (-31.0 F)
1994	-34.4 C (-29.9 F)
1996	-38.9 C (-38.0 F)
1997	-42.2 C (-44.0 F)
1998	-7.8 C (18.0 F)

Wettest day (Rx1day)

The wettest day of the year at Lame Deer, 1903 to 1998. The record is 105.4 mm (4.1 in) in 1944, marked on the chart; the median year is 31.1 mm (1.2 in).

Wettest day (Rx1day) at Lame Deer by year
Year	Wettest day (Rx1day)
1903	35.6 mm (1.4 in)
1904	28.4 mm (1.1 in)
1905	45.7 mm (1.8 in)
1906	20.8 mm (0.8 in)
1907	5.1 mm (0.20 in)
1937	19.8 mm (0.8 in)
1938	27.2 mm (1.1 in)
1939	36.1 mm (1.4 in)
1940	42.7 mm (1.7 in)
1941	26.2 mm (1.0 in)
1942	67.8 mm (2.7 in)
1943	42.2 mm (1.7 in)
1944	105.4 mm (4.1 in)
1945	26.2 mm (1.0 in)
1946	51.1 mm (2.0 in)
1947	33.0 mm (1.3 in)
1948	31.0 mm (1.2 in)
1949	24.4 mm (1.0 in)
1950	24.4 mm (1.0 in)
1951	76.2 mm (3.0 in)
1952	15.2 mm (0.6 in)
1953	25.7 mm (1.0 in)
1954	22.9 mm (0.9 in)
1955	34.3 mm (1.4 in)
1956	26.2 mm (1.0 in)
1957	28.4 mm (1.1 in)
1958	40.6 mm (1.6 in)
1959	16.5 mm (0.6 in)
1960	28.4 mm (1.1 in)
1961	31.0 mm (1.2 in)
1962	27.4 mm (1.1 in)
1963	29.2 mm (1.1 in)
1964	31.2 mm (1.2 in)
1965	20.1 mm (0.8 in)
1966	27.9 mm (1.1 in)
1967	38.1 mm (1.5 in)
1968	46.2 mm (1.8 in)
1969	38.1 mm (1.5 in)
1970	63.5 mm (2.5 in)
1971	35.3 mm (1.4 in)
1972	16.5 mm (0.6 in)
1973	73.7 mm (2.9 in)
1974	51.1 mm (2.0 in)
1975	19.6 mm (0.8 in)
1976	39.4 mm (1.6 in)
1977	51.1 mm (2.0 in)
1978	81.3 mm (3.2 in)
1979	24.4 mm (1.0 in)
1980	16.8 mm (0.7 in)
1981	39.4 mm (1.6 in)
1982	46.2 mm (1.8 in)
1983	21.8 mm (0.9 in)
1984	38.6 mm (1.5 in)
1985	26.7 mm (1.1 in)
1986	34.0 mm (1.3 in)
1987	39.4 mm (1.6 in)
1988	25.7 mm (1.0 in)
1989	29.2 mm (1.1 in)
1990	29.2 mm (1.1 in)
1991	30.2 mm (1.2 in)
1992	38.1 mm (1.5 in)
1993	46.7 mm (1.8 in)
1994	48.3 mm (1.9 in)
1996	40.9 mm (1.6 in)
1997	36.3 mm (1.4 in)
1998	6.6 mm (0.26 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lame Deer, 1903 to 1998. The record is 193.1 mm (7.6 in) in 1978, marked on the chart; the median year is 50.5 mm (2.0 in).

Wettest five days (Rx5day) at Lame Deer by year
Year	Wettest five days (Rx5day)
1903	78.8 mm (3.1 in)
1904	50.8 mm (2.0 in)
1905	45.7 mm (1.8 in)
1906	28.2 mm (1.1 in)
1907	7.9 mm (0.31 in)
1937	26.7 mm (1.1 in)
1938	42.7 mm (1.7 in)
1939	54.1 mm (2.1 in)
1940	68.8 mm (2.7 in)
1941	43.0 mm (1.7 in)
1942	126.7 mm (5.0 in)
1943	87.5 mm (3.4 in)
1944	144.5 mm (5.7 in)
1945	45.5 mm (1.8 in)
1946	79.8 mm (3.1 in)
1947	58.7 mm (2.3 in)
1948	50.6 mm (2.0 in)
1949	37.9 mm (1.5 in)
1950	58.1 mm (2.3 in)
1951	119.4 mm (4.7 in)
1952	23.1 mm (0.9 in)
1953	49.6 mm (2.0 in)
1954	30.7 mm (1.2 in)
1955	42.6 mm (1.7 in)
1956	36.9 mm (1.5 in)
1957	35.5 mm (1.4 in)
1958	51.8 mm (2.0 in)
1959	28.3 mm (1.1 in)
1960	34.3 mm (1.4 in)
1961	53.9 mm (2.1 in)
1962	35.3 mm (1.4 in)
1963	56.9 mm (2.2 in)
1964	63.5 mm (2.5 in)
1965	31.8 mm (1.3 in)
1966	28.9 mm (1.1 in)
1967	88.1 mm (3.5 in)
1968	82.8 mm (3.3 in)
1969	73.1 mm (2.9 in)
1970	78.8 mm (3.1 in)
1971	42.7 mm (1.7 in)
1972	23.9 mm (0.9 in)
1973	122.5 mm (4.8 in)
1974	59.9 mm (2.4 in)
1975	45.4 mm (1.8 in)
1976	69.6 mm (2.7 in)
1977	72.0 mm (2.8 in)
1978	193.1 mm (7.6 in)
1979	43.7 mm (1.7 in)
1980	33.9 mm (1.3 in)
1981	50.3 mm (2.0 in)
1982	53.1 mm (2.1 in)
1983	35.0 mm (1.4 in)
1984	60.0 mm (2.4 in)
1985	42.5 mm (1.7 in)
1986	75.9 mm (3.0 in)
1987	97.4 mm (3.8 in)
1988	25.7 mm (1.0 in)
1989	38.1 mm (1.5 in)
1990	35.0 mm (1.4 in)
1991	58.2 mm (2.3 in)
1992	44.8 mm (1.8 in)
1993	72.9 mm (2.9 in)
1994	63.3 mm (2.5 in)
1996	42.0 mm (1.7 in)
1997	79.0 mm (3.1 in)
1998	9.9 mm (0.39 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lame Deer, 1903 to 1998. The record is 65 days in 1992, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at Lame Deer by year
Year	Longest dry spell (CDD)
1903	26 days
1904	39 days
1905	49 days
1906	35 days
1907	10 days
1937	38 days
1938	36 days
1939	23 days
1940	42 days
1941	37 days
1942	26 days
1943	24 days
1944	31 days
1945	24 days
1946	36 days
1947	29 days
1948	34 days
1949	44 days
1950	27 days
1951	20 days
1952	29 days
1953	26 days
1954	30 days
1955	21 days
1956	19 days
1957	47 days
1958	25 days
1959	30 days
1960	24 days
1961	30 days
1962	17 days
1963	32 days
1964	37 days
1965	43 days
1966	20 days
1967	53 days
1968	16 days
1969	32 days
1970	34 days
1971	17 days
1972	19 days
1973	22 days
1974	27 days
1975	38 days
1976	29 days
1977	26 days
1978	50 days
1979	33 days
1980	32 days
1981	24 days
1982	27 days
1983	23 days
1984	25 days
1985	18 days
1986	32 days
1987	43 days
1988	24 days
1989	19 days
1990	27 days
1991	52 days
1992	65 days
1993	25 days
1994	43 days
1996	29 days
1997	41 days
1998	14 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

33 years with a frost

Across 33 years with a frost, the median last spring frost at Lame Deer falls on 3 June and the median first autumn frost on 10 September, which leaves a median of 93 days between them.

Fitted over all years, the growing season changes by -2.1 days per decade at this station.

Frost dates and growing season at Lame Deer
Measure	Median, all years	Earliest period	Recent period (1942 to 1993)	Recent against earliest	Fitted trend
Last spring frost	3 June	n/a	5 June	n/a	+0.4 days per decade
First autumn frost	10 September	n/a	9 September	n/a	-1.7 days per decade
Growing days	93 days	n/a	94 days	n/a	-2.1 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

46 years, 1903 to 1993

A day with at least 31.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 107.5 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Lame Deer: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	31.9 mm (1.3 in)
5 years	46.2 mm (1.8 in)
10 years	57.7 mm (2.3 in)
25 years	75.0 mm (3.0 in)
50 years	90.1 mm (3.5 in)	Longer than the 46 years of record
100 years	107.5 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 1903 to 1993.

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: 105.4 mm (4.1 in) in 1944; 76.2 mm (3.0 in) in 1951; 73.7 mm (2.9 in) in 1973.

Download the Data

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