Record envelope, standing records and threshold days for Cooke City 2 W (USC00241995), Montana, United States, with 47 years of record.
Key Facts for Cooke City 2 W
Cooke City 2 W (USC00241995) is a weather station in Montana, United States at 45.01 latitude and -109.98 longitude, 2,281 m (7,483 ft) above sea level.
The station reports from 1967 to 2013, 47 years of record.
1,464 records set at Cooke City 2 W still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Cooke City 2 W set a daily record high minimum temperature of 8.3 C (46.9 F) on 29 June 2013.
About the Station
Location: Montana, United States, 45.01 latitude, -109.98 longitude.
Elevation: 2,281 m (7,483 ft).
Period of record: 1967 to 2013, 47 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Cooke City 2 W. 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 Cooke City 2 W, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
8.9 C (48.0 F)
-40.6 C (-41.1 F)
n/a
n/a
Feb
12.2 C (54.0 F)
-41.7 C (-43.1 F)
n/a
n/a
Mar
14.4 C (57.9 F)
-32.8 C (-27.0 F)
n/a
n/a
Apr
22.2 C (72.0 F)
-27.8 C (-18.0 F)
n/a
n/a
May
26.1 C (79.0 F)
-17.8 C (0.0 F)
n/a
n/a
Jun
31.1 C (88.0 F)
-8.3 C (17.1 F)
n/a
n/a
Jul
33.9 C (93.0 F)
-5.6 C (21.9 F)
n/a
n/a
Aug
31.1 C (88.0 F)
-6.7 C (19.9 F)
n/a
n/a
Sep
29.4 C (84.9 F)
-16.1 C (3.0 F)
n/a
n/a
Oct
24.4 C (75.9 F)
-25.0 C (-13.0 F)
n/a
n/a
Nov
14.4 C (57.9 F)
-30.6 C (-23.1 F)
n/a
n/a
Dec
8.3 C (46.9 F)
-41.1 C (-42.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Cooke City 2 W still stand. 1996 holds the most, with 56.
Standing records at Cooke City 2 W by the year they were set
Year set
Standing records
1967
4
1968
33
1969
55
1970
34
1971
38
1972
40
1973
26
1974
45
1975
40
1976
23
1977
25
1978
41
1979
24
1980
17
1981
18
1982
21
1983
34
1984
43
1985
50
1986
39
1987
51
1988
48
1989
23
1990
45
1991
24
1992
41
1993
24
1994
27
1995
49
1996
56
1997
20
1998
27
1999
20
2000
22
2001
20
2002
27
2003
37
2004
21
2005
21
2006
25
2007
48
2008
17
2009
37
2010
28
2011
19
2012
21
2013
16
All-Time Record Progression
2 new records
2 all-time records were set at Cooke City 2 W between 29 March 2008 and 13 April 2010. Each dot is a new record.
When Cooke City 2 W set new all-time records
Date
Kind
Detail
2008-03-29
Record snow depth
Record snow depth 182.9 cm (72.0 in)
2010-04-13
Record daily precipitation
Record daily precipitation 68.6 mm (2.7 in)
Wettest Day of Each Month
Apr: 68.6 mm (2.7 in)
The wettest day on record for each calendar month at Cooke City 2 W. The most was 68.6 mm (2.7 in) on 13 April 2010.
Record daily precipitation for each month at Cooke City 2 W
Month
Record daily precipitation (mm)
Date
Jan
27.4 mm (1.1 in)
19 January 1995
Feb
26.4 mm (1.0 in)
22 February 2012
Mar
27.9 mm (1.1 in)
4 March 2009
Apr
68.6 mm (2.7 in)
13 April 2010
May
52.8 mm (2.1 in)
8 May 1988
Jun
44.5 mm (1.8 in)
7 June 1997
Jul
48.3 mm (1.9 in)
10 July 1983
Aug
28.4 mm (1.1 in)
22 August 1986
Sep
30.2 mm (1.2 in)
3 September 1971
Oct
30.0 mm (1.2 in)
29 October 2003
Nov
42.2 mm (1.7 in)
19 November 1996
Dec
28.7 mm (1.1 in)
2 December 1977
Period of Record Coverage
1967 to 2013
Complete yearUnder 90 percent of days
47 years of record at Cooke City 2 W, 1967 to 2013. 13 years have data for under 90 percent of days and are left out of rankings: 1967, 1973, 1979, 1980, 1981, 1982, 1983, 1987 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 31 complete years at Cooke City 2 W, 1968 to 2011. Blue stripes are years cooler than the station's own mean of 1.0 C (33.7 F); red stripes are warmer. The coolest year was 1985, at -0.5 C (31.1 F), and the warmest was 2007, at 2.7 C (36.8 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Cooke City 2 W as warming stripes, 1968 to 2011
Year
Annual mean temperature
Difference from the station mean
1968
0.6 C
-0.33 C
1969
1.2 C
+0.18 C
1970
0.8 C
-0.22 C
1971
0.8 C
-0.17 C
1972
0.8 C
-0.22 C
1974
1.0 C
+0.03 C
1975
-0.3 C
-1.30 C
1976
0.8 C
-0.17 C
1977
1.4 C
+0.43 C
1978
0.6 C
-0.37 C
1984
-0.4 C
-1.34 C
1985
-0.5 C
-1.45 C
1986
1.3 C
+0.34 C
1990
1.1 C
+0.16 C
1992
1.6 C
+0.61 C
1993
0.4 C
-0.56 C
1995
1.2 C
+0.20 C
1996
1.1 C
+0.12 C
1998
2.2 C
+1.25 C
1999
1.4 C
+0.42 C
2000
1.4 C
+0.46 C
2001
1.7 C
+0.73 C
2002
0.6 C
-0.35 C
2003
1.6 C
+0.60 C
2004
1.2 C
+0.19 C
2005
0.9 C
-0.10 C
2007
2.7 C
+1.68 C
2008
0.5 C
-0.43 C
2009
0.4 C
-0.58 C
2010
1.4 C
+0.39 C
2011
0.7 C
-0.26 C
The fitted trend in annual mean temperature here over 1968 to 2011 is 0.16 C (-0.02 to 0.33) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.28 F (-0.03 to 0.59) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Cooke City 2 W
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.16 C (-0.02 to 0.33) per decade
0.28 F (-0.03 to 0.59) per decade
1968 to 2011
31
Not clearly different from zero
Mean daily maximum
-0.03 C (-0.23 to 0.17) per decade
-0.1 F (-0.4 to 0.3) per decade
1968 to 2011
31
Not clearly different from zero
Mean daily minimum
0.3 C (0.2 to 0.5) per decade
0.6 F (0.3 to 0.9) per decade
1968 to 2011
31
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
1967 to 2013
Yearly extremes at Cooke City 2 W: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
33.9 C (93.0 F)
1988
28.9 C (84.0 F)
47
Coldest night (TNn)
-41.7 C (-43.1 F)
1982
-36.1 C (-33.0 F)
47
Wettest day (Rx1day)
68.6 mm (2.7 in)
2010
27.4 mm (1.1 in)
47
Wettest five days (Rx5day)
87.1 mm (3.4 in)
1976
49.6 mm (2.0 in)
47
Longest dry spell (CDD)
36 days
1987
18 days
47
Hottest day (TXx)
The hottest day of the year at Cooke City 2 W, 1967 to 2013. The record is 33.9 C (93.0 F) in 1988, marked on the chart; the median year is 28.9 C (84.0 F).
Hottest day (TXx) at Cooke City 2 W by year
Year
Hottest day (TXx)
1967
10.6 C (51.1 F)
1968
29.4 C (84.9 F)
1969
31.1 C (88.0 F)
1970
28.3 C (82.9 F)
1971
28.3 C (82.9 F)
1972
28.3 C (82.9 F)
1973
29.4 C (84.9 F)
1974
28.9 C (84.0 F)
1975
28.3 C (82.9 F)
1976
28.9 C (84.0 F)
1977
26.7 C (80.1 F)
1978
26.7 C (80.1 F)
1979
28.9 C (84.0 F)
1980
25.6 C (78.1 F)
1981
29.4 C (84.9 F)
1982
14.4 C (57.9 F)
1983
30.6 C (87.1 F)
1984
28.3 C (82.9 F)
1985
30.0 C (86.0 F)
1986
28.9 C (84.0 F)
1987
28.9 C (84.0 F)
1988
33.9 C (93.0 F)
1989
31.7 C (89.1 F)
1990
31.7 C (89.1 F)
1991
29.4 C (84.9 F)
1992
28.9 C (84.0 F)
1993
27.2 C (81.0 F)
1994
30.0 C (86.0 F)
1995
29.4 C (84.9 F)
1996
30.0 C (86.0 F)
1997
27.2 C (81.0 F)
1998
31.1 C (88.0 F)
1999
28.3 C (82.9 F)
2000
30.0 C (86.0 F)
2001
29.4 C (84.9 F)
2002
32.2 C (90.0 F)
2003
30.6 C (87.1 F)
2004
27.2 C (81.0 F)
2005
29.4 C (84.9 F)
2006
29.4 C (84.9 F)
2007
31.7 C (89.1 F)
2008
28.9 C (84.0 F)
2009
27.8 C (82.0 F)
2010
26.7 C (80.1 F)
2011
28.3 C (82.9 F)
2012
28.9 C (84.0 F)
2013
27.8 C (82.0 F)
Coldest night (TNn)
The coldest night of the year at Cooke City 2 W, 1967 to 2013. The record is -41.7 C (-43.1 F) in 1982, marked on the chart; the median year is -36.1 C (-33.0 F).
Coldest night (TNn) at Cooke City 2 W by year
Year
Coldest night (TNn)
1967
-30.6 C (-23.1 F)
1968
-37.2 C (-35.0 F)
1969
-31.1 C (-24.0 F)
1970
-37.2 C (-35.0 F)
1971
-35.6 C (-32.1 F)
1972
-41.1 C (-42.0 F)
1973
-36.1 C (-33.0 F)
1974
-35.6 C (-32.1 F)
1975
-33.9 C (-29.0 F)
1976
-35.6 C (-32.1 F)
1977
-32.2 C (-26.0 F)
1978
-37.2 C (-35.0 F)
1979
-38.9 C (-38.0 F)
1980
-40.6 C (-41.1 F)
1981
-25.0 C (-13.0 F)
1982
-41.7 C (-43.1 F)
1983
-37.2 C (-35.0 F)
1984
-39.4 C (-38.9 F)
1985
-40.6 C (-41.1 F)
1986
-33.9 C (-29.0 F)
1987
-32.8 C (-27.0 F)
1988
-31.7 C (-25.1 F)
1989
-40.6 C (-41.1 F)
1990
-40.0 C (-40.0 F)
1991
-37.8 C (-36.0 F)
1992
-33.9 C (-29.0 F)
1993
-30.0 C (-22.0 F)
1994
-28.9 C (-20.0 F)
1995
-33.3 C (-27.9 F)
1996
-41.1 C (-42.0 F)
1997
-30.0 C (-22.0 F)
1998
-38.9 C (-38.0 F)
1999
-28.9 C (-20.0 F)
2000
-31.7 C (-25.1 F)
2001
-36.1 C (-33.0 F)
2002
-33.3 C (-27.9 F)
2003
-40.0 C (-40.0 F)
2004
-35.6 C (-32.1 F)
2005
-37.2 C (-35.0 F)
2006
-37.2 C (-35.0 F)
2007
-39.4 C (-38.9 F)
2008
-36.7 C (-34.1 F)
2009
-34.4 C (-29.9 F)
2010
-37.2 C (-35.0 F)
2011
-37.8 C (-36.0 F)
2012
-28.3 C (-18.9 F)
2013
-33.3 C (-27.9 F)
Wettest day (Rx1day)
The wettest day of the year at Cooke City 2 W, 1967 to 2013. The record is 68.6 mm (2.7 in) in 2010, marked on the chart; the median year is 27.4 mm (1.1 in).
Wettest day (Rx1day) at Cooke City 2 W by year
Year
Wettest day (Rx1day)
1967
20.1 mm (0.8 in)
1968
26.2 mm (1.0 in)
1969
25.4 mm (1.0 in)
1970
20.6 mm (0.8 in)
1971
30.2 mm (1.2 in)
1972
26.2 mm (1.0 in)
1973
26.9 mm (1.1 in)
1974
31.8 mm (1.3 in)
1975
28.2 mm (1.1 in)
1976
38.6 mm (1.5 in)
1977
28.7 mm (1.1 in)
1978
19.6 mm (0.8 in)
1979
25.1 mm (1.0 in)
1980
32.0 mm (1.3 in)
1981
45.7 mm (1.8 in)
1982
37.8 mm (1.5 in)
1983
48.3 mm (1.9 in)
1984
16.5 mm (0.6 in)
1985
23.6 mm (0.9 in)
1986
28.4 mm (1.1 in)
1987
18.5 mm (0.7 in)
1988
52.8 mm (2.1 in)
1989
14.5 mm (0.6 in)
1990
20.3 mm (0.8 in)
1991
21.1 mm (0.8 in)
1992
29.7 mm (1.2 in)
1993
13.5 mm (0.5 in)
1994
30.5 mm (1.2 in)
1995
27.4 mm (1.1 in)
1996
42.2 mm (1.7 in)
1997
44.5 mm (1.8 in)
1998
34.8 mm (1.4 in)
1999
25.7 mm (1.0 in)
2000
27.7 mm (1.1 in)
2001
23.6 mm (0.9 in)
2002
23.4 mm (0.9 in)
2003
30.0 mm (1.2 in)
2004
23.6 mm (0.9 in)
2005
20.3 mm (0.8 in)
2006
21.1 mm (0.8 in)
2007
28.2 mm (1.1 in)
2008
28.2 mm (1.1 in)
2009
33.8 mm (1.3 in)
2010
68.6 mm (2.7 in)
2011
15.7 mm (0.6 in)
2012
40.6 mm (1.6 in)
2013
14.0 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Cooke City 2 W, 1967 to 2013. The record is 87.1 mm (3.4 in) in 1976, marked on the chart; the median year is 49.6 mm (2.0 in).
Wettest five days (Rx5day) at Cooke City 2 W by year
Year
Wettest five days (Rx5day)
1967
52.5 mm (2.1 in)
1968
61.0 mm (2.4 in)
1969
73.7 mm (2.9 in)
1970
50.8 mm (2.0 in)
1971
49.6 mm (2.0 in)
1972
41.5 mm (1.6 in)
1973
43.0 mm (1.7 in)
1974
69.2 mm (2.7 in)
1975
47.5 mm (1.9 in)
1976
87.1 mm (3.4 in)
1977
51.5 mm (2.0 in)
1978
52.3 mm (2.1 in)
1979
55.8 mm (2.2 in)
1980
72.6 mm (2.9 in)
1981
48.1 mm (1.9 in)
1982
40.6 mm (1.6 in)
1983
59.1 mm (2.3 in)
1984
48.8 mm (1.9 in)
1985
39.9 mm (1.6 in)
1986
37.1 mm (1.5 in)
1987
40.7 mm (1.6 in)
1988
80.8 mm (3.2 in)
1989
27.9 mm (1.1 in)
1990
45.6 mm (1.8 in)
1991
35.1 mm (1.4 in)
1992
50.0 mm (2.0 in)
1993
48.0 mm (1.9 in)
1994
42.2 mm (1.7 in)
1995
45.8 mm (1.8 in)
1996
85.3 mm (3.4 in)
1997
85.3 mm (3.4 in)
1998
63.3 mm (2.5 in)
1999
39.6 mm (1.6 in)
2000
49.5 mm (1.9 in)
2001
48.0 mm (1.9 in)
2002
49.9 mm (2.0 in)
2003
49.3 mm (1.9 in)
2004
59.5 mm (2.3 in)
2005
43.7 mm (1.7 in)
2006
31.6 mm (1.2 in)
2007
51.6 mm (2.0 in)
2008
54.3 mm (2.1 in)
2009
73.9 mm (2.9 in)
2010
70.6 mm (2.8 in)
2011
38.8 mm (1.5 in)
2012
52.3 mm (2.1 in)
2013
22.9 mm (0.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Cooke City 2 W, 1967 to 2013. The record is 36 days in 1987, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Cooke City 2 W by year
Year
Longest dry spell (CDD)
1967
8 days
1968
17 days
1969
22 days
1970
13 days
1971
15 days
1972
15 days
1973
17 days
1974
23 days
1975
19 days
1976
29 days
1977
18 days
1978
18 days
1979
25 days
1980
12 days
1981
24 days
1982
12 days
1983
19 days
1984
17 days
1985
18 days
1986
26 days
1987
36 days
1988
28 days
1989
17 days
1990
16 days
1991
22 days
1992
23 days
1993
20 days
1994
12 days
1995
10 days
1996
19 days
1997
11 days
1998
23 days
1999
19 days
2000
14 days
2001
20 days
2002
17 days
2003
25 days
2004
20 days
2005
17 days
2006
13 days
2007
19 days
2008
17 days
2009
14 days
2010
24 days
2011
18 days
2012
18 days
2013
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
31 years with a frost
Across 31 years with a frost, the median last spring frost at Cooke City 2 W falls on 27 June and the median first autumn frost on 5 July, which leaves a median of 10 days between them.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
Frost dates and growing season at Cooke City 2 W
Measure
Median, all years
Earliest period
Recent period (1969 to 2011)
Recent against earliest
Fitted trend
Last spring frost
27 June
n/a
27 June
n/a
-1.2 days per decade
First autumn frost
5 July
n/a
6 July
n/a
+2.0 days per decade
Growing days
10 days
n/a
10 days
n/a
+3.2 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
32 years, 1968 to 2012
A day with at least 26.2 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 60.3 mm (2.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Cooke City 2 W: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
26.2 mm (1.0 in)
5 years
34.2 mm (1.3 in)
10 years
39.9 mm (1.6 in)
25 years
47.6 mm (1.9 in)
50 years
53.8 mm (2.1 in)
Longer than the 32 years of record
100 years
60.3 mm (2.4 in)
Longer than the 32 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, 32 years of values from 1968 to 2012.
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: 68.6 mm (2.7 in) in 2010; 42.2 mm (1.7 in) in 1996; 40.6 mm (1.6 in) in 2012.
Download the Data
Data for Cooke City 2 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cooke City 2 W 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.