Record envelope, standing records and threshold days for Hinsdale 4 SW (USC00244180), Montana, United States, with 56 years of record.
Key Facts for Hinsdale 4 SW
Hinsdale 4 SW (USC00244180) is a weather station in Montana, United States at 48.35 latitude and -107.15 longitude, 855 m (2,805 ft) above sea level.
The station reports from 1971 to 2026, 56 years of record.
1,464 records set at Hinsdale 4 SW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hinsdale 4 SW set a daily record high maximum temperature of 40.6 C (105.1 F) on 24 July 2026.
About the Station
Location: Montana, United States, 48.35 latitude, -107.15 longitude.
Elevation: 855 m (2,805 ft).
Period of record: 1971 to 2026, 56 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
13 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 Hinsdale 4 SW. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Hinsdale 4 SW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
14.4 C (57.9 F)
-38.3 C (-36.9 F)
10.0 C (50.0 F)
-7.2 C (19.0 F)
Feb
20.6 C (69.1 F)
-36.7 C (-34.1 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-31.7 C (-25.1 F)
23.3 C (73.9 F)
-18.3 C (-0.9 F)
Apr
32.2 C (90.0 F)
-19.4 C (-2.9 F)
25.0 C (77.0 F)
-8.3 C (17.1 F)
May
38.3 C (100.9 F)
-7.8 C (18.0 F)
35.6 C (96.1 F)
-2.2 C (28.0 F)
Jun
41.7 C (107.1 F)
-0.6 C (30.9 F)
25.0 C (77.0 F)
11.1 C (52.0 F)
Jul
42.8 C (109.0 F)
3.9 C (39.0 F)
41.7 C (107.1 F)
12.2 C (54.0 F)
Aug
42.2 C (108.0 F)
2.8 C (37.0 F)
32.8 C (91.0 F)
7.8 C (46.0 F)
Sep
38.9 C (102.0 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-31.7 C (-25.1 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-38.3 C (-36.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hinsdale 4 SW still stand. 1985 holds the most, with 65.
Standing records at Hinsdale 4 SW by the year they were set
Year set
Standing records
1971
24
1972
51
1973
26
1974
24
1975
14
1976
13
1977
27
1978
18
1979
26
1980
40
1981
22
1982
28
1983
34
1984
24
1985
65
1986
33
1987
48
1988
49
1989
35
1990
28
1991
38
1992
60
1993
15
1994
24
1995
19
1996
41
1997
25
1998
23
1999
19
2000
30
2001
19
2002
45
2003
30
2004
16
2005
16
2006
21
2007
15
2008
20
2009
20
2010
12
2011
17
2012
22
2013
15
2014
16
2015
12
2016
18
2017
31
2018
20
2019
21
2020
28
2021
38
2022
21
2023
17
2024
11
2025
21
2026
19
All-Time Record Progression
6 new records
6 all-time records were set at Hinsdale 4 SW between 29 December 2017 and 2 June 2023. Each dot is a new record.
When Hinsdale 4 SW set new all-time records
Date
Kind
Detail
2017-12-29
Record snow depth
Record snow depth 35.6 cm (14.0 in)
2018-08-11
Record high maximum temperature
Record high maximum temperature 42.2 C (108.0 F)
2020-11-08
Record snow depth
Record snow depth 38.1 cm (15.0 in)
2021-07-19
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
2023-03-15
Record snow depth
Record snow depth 40.6 cm (16.0 in)
2023-06-02
Record daily precipitation
Record daily precipitation 92.7 mm (3.6 in)
Wettest Day of Each Month
Jun: 92.7 mm (3.6 in)
The wettest day on record for each calendar month at Hinsdale 4 SW. The most was 92.7 mm (3.6 in) on 2 June 2023.
Record daily precipitation for each month at Hinsdale 4 SW
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
31 January 2007
Feb
38.1 mm (1.5 in)
8 February 2007
Mar
20.1 mm (0.8 in)
29 March 2000
Apr
52.8 mm (2.1 in)
15 April 2016
May
83.1 mm (3.3 in)
28 May 1982
Jun
92.7 mm (3.6 in)
2 June 2023
Jul
72.9 mm (2.9 in)
10 July 1983
Aug
72.4 mm (2.9 in)
2 August 1985
Sep
59.7 mm (2.4 in)
25 September 1986
Oct
57.7 mm (2.3 in)
7 October 2011
Nov
23.4 mm (0.9 in)
8 November 2020
Dec
27.9 mm (1.1 in)
11 December 2025
Period of Record Coverage
1971 to 2026
Complete yearUnder 90 percent of days
56 years of record at Hinsdale 4 SW, 1971 to 2026. 26 years have data for under 90 percent of days and are left out of rankings: 1971, 1996, 1997, 1998, 1999, 2001, 2002, 2003 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 35 complete years at Hinsdale 4 SW, 1972 to 2025. Blue stripes are years cooler than the station's own mean of 6.4 C (43.6 F); red stripes are warmer. The coolest year was 1982, at 4.3 C (39.7 F), and the warmest was 1987, at 9.1 C (48.4 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Hinsdale 4 SW as warming stripes, 1972 to 2025
Year
Annual mean temperature
Difference from the station mean
1972
4.6 C
-1.79 C
1973
7.2 C
+0.75 C
1974
6.7 C
+0.30 C
1975
5.3 C
-1.15 C
1976
7.3 C
+0.88 C
1977
6.5 C
+0.12 C
1978
4.5 C
-1.97 C
1979
5.1 C
-1.37 C
1980
6.8 C
+0.35 C
1981
8.4 C
+1.97 C
1982
4.3 C
-2.14 C
1983
6.7 C
+0.29 C
1984
7.1 C
+0.66 C
1985
5.1 C
-1.29 C
1986
7.4 C
+0.99 C
1987
9.1 C
+2.70 C
1988
8.1 C
+1.70 C
1989
5.8 C
-0.59 C
1990
7.7 C
+1.29 C
1991
7.6 C
+1.19 C
1992
7.6 C
+1.21 C
1993
5.3 C
-1.10 C
1994
6.7 C
+0.25 C
1995
6.2 C
-0.23 C
1996
4.4 C
-2.05 C
1997
7.1 C
+0.70 C
2000
6.2 C
-0.20 C
2001
7.1 C
+0.63 C
2013
5.7 C
-0.71 C
2014
5.1 C
-1.33 C
2020
6.3 C
-0.15 C
2021
6.9 C
+0.44 C
2022
5.5 C
-0.93 C
2023
6.6 C
+0.16 C
2025
6.8 C
+0.40 C
The fitted trend in annual mean temperature here over 1972 to 2025 is -0.02 C (-0.28 to 0.25) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.03 F (-0.51 to 0.45) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hinsdale 4 SW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.02 C (-0.28 to 0.25) per decade
-0.03 F (-0.51 to 0.45) per decade
1972 to 2025
35
Not clearly different from zero
Mean daily maximum
0.2 C (-0.1 to 0.5) per decade
0.3 F (-0.2 to 0.8) per decade
1972 to 2025
35
Not clearly different from zero
Mean daily minimum
-0.2 C (-0.4 to 0.1) per decade
-0.4 F (-0.8 to 0.1) per decade
1972 to 2025
35
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
1971 to 2026
Yearly extremes at Hinsdale 4 SW: 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)
2021
38.3 C (100.9 F)
56
Coldest night (TNn)
-38.3 C (-36.9 F)
1983
-31.1 C (-24.0 F)
56
Wettest day (Rx1day)
92.7 mm (3.6 in)
2023
38.1 mm (1.5 in)
56
Wettest five days (Rx5day)
185.4 mm (7.3 in)
2014
56.6 mm (2.2 in)
56
Longest dry spell (CDD)
83 days
1987
32 days
56
Hottest day (TXx)
The hottest day of the year at Hinsdale 4 SW, 1971 to 2026. The record is 42.8 C (109.0 F) in 2021, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Hinsdale 4 SW by year
Year
Hottest day (TXx)
1971
40.0 C (104.0 F)
1972
36.7 C (98.1 F)
1973
38.9 C (102.0 F)
1974
35.0 C (95.0 F)
1975
38.9 C (102.0 F)
1976
38.3 C (100.9 F)
1977
36.7 C (98.1 F)
1978
37.2 C (99.0 F)
1979
37.2 C (99.0 F)
1980
36.7 C (98.1 F)
1981
38.3 C (100.9 F)
1982
34.4 C (93.9 F)
1983
41.1 C (106.0 F)
1984
38.3 C (100.9 F)
1985
38.9 C (102.0 F)
1986
36.1 C (97.0 F)
1987
37.2 C (99.0 F)
1988
41.7 C (107.1 F)
1989
40.0 C (104.0 F)
1990
39.4 C (102.9 F)
1991
38.3 C (100.9 F)
1992
36.1 C (97.0 F)
1993
35.6 C (96.1 F)
1994
37.2 C (99.0 F)
1995
37.2 C (99.0 F)
1996
40.6 C (105.1 F)
1997
39.4 C (102.9 F)
1998
38.9 C (102.0 F)
1999
35.6 C (96.1 F)
2000
39.4 C (102.9 F)
2001
38.9 C (102.0 F)
2002
38.3 C (100.9 F)
2003
40.6 C (105.1 F)
2004
36.7 C (98.1 F)
2005
40.0 C (104.0 F)
2006
39.4 C (102.9 F)
2007
38.3 C (100.9 F)
2008
40.0 C (104.0 F)
2009
37.2 C (99.0 F)
2010
37.2 C (99.0 F)
2011
38.3 C (100.9 F)
2012
38.9 C (102.0 F)
2013
37.8 C (100.0 F)
2014
35.6 C (96.1 F)
2015
40.0 C (104.0 F)
2016
37.2 C (99.0 F)
2017
38.3 C (100.9 F)
2018
42.2 C (108.0 F)
2019
35.6 C (96.1 F)
2020
37.2 C (99.0 F)
2021
42.8 C (109.0 F)
2022
40.0 C (104.0 F)
2023
40.0 C (104.0 F)
2024
39.4 C (102.9 F)
2025
38.3 C (100.9 F)
2026
41.7 C (107.1 F)
Coldest night (TNn)
The coldest night of the year at Hinsdale 4 SW, 1971 to 2026. The record is -38.3 C (-36.9 F) in 1983, marked on the chart; the median year is -31.1 C (-24.0 F).
Coldest night (TNn) at Hinsdale 4 SW by year
Year
Coldest night (TNn)
1971
-28.9 C (-20.0 F)
1972
-35.6 C (-32.1 F)
1973
-27.8 C (-18.0 F)
1974
-34.4 C (-29.9 F)
1975
-29.4 C (-20.9 F)
1976
-31.1 C (-24.0 F)
1977
-36.1 C (-33.0 F)
1978
-29.4 C (-20.9 F)
1979
-35.0 C (-31.0 F)
1980
-31.7 C (-25.1 F)
1981
-28.3 C (-18.9 F)
1982
-35.6 C (-32.1 F)
1983
-38.3 C (-36.9 F)
1984
-30.6 C (-23.1 F)
1985
-32.8 C (-27.0 F)
1986
-30.6 C (-23.1 F)
1987
-24.4 C (-11.9 F)
1988
-30.6 C (-23.1 F)
1989
-37.2 C (-35.0 F)
1990
-34.4 C (-29.9 F)
1991
-27.2 C (-17.0 F)
1992
-32.2 C (-26.0 F)
1993
-30.0 C (-22.0 F)
1994
-32.8 C (-27.0 F)
1995
-28.9 C (-20.0 F)
1996
-36.7 C (-34.1 F)
1997
-33.3 C (-27.9 F)
1998
-33.3 C (-27.9 F)
1999
-26.7 C (-16.1 F)
2000
-30.0 C (-22.0 F)
2001
-23.3 C (-9.9 F)
2002
-27.2 C (-17.0 F)
2003
-28.9 C (-20.0 F)
2004
-32.2 C (-26.0 F)
2005
-32.2 C (-26.0 F)
2006
-28.3 C (-18.9 F)
2007
-27.8 C (-18.0 F)
2008
-34.4 C (-29.9 F)
2009
-32.2 C (-26.0 F)
2010
-31.1 C (-24.0 F)
2011
-31.1 C (-24.0 F)
2012
-30.6 C (-23.1 F)
2013
-35.0 C (-31.0 F)
2014
-31.7 C (-25.1 F)
2015
-26.7 C (-16.1 F)
2016
-29.4 C (-20.9 F)
2017
-30.6 C (-23.1 F)
2018
-33.9 C (-29.0 F)
2019
-31.7 C (-25.1 F)
2020
-28.9 C (-20.0 F)
2021
-33.3 C (-27.9 F)
2022
-33.3 C (-27.9 F)
2023
-28.9 C (-20.0 F)
2024
-38.3 C (-36.9 F)
2025
-36.1 C (-33.0 F)
2026
-18.3 C (-0.9 F)
Wettest day (Rx1day)
The wettest day of the year at Hinsdale 4 SW, 1971 to 2026. The record is 92.7 mm (3.6 in) in 2023, marked on the chart; the median year is 38.1 mm (1.5 in).
Wettest day (Rx1day) at Hinsdale 4 SW by year
Year
Wettest day (Rx1day)
1971
27.9 mm (1.1 in)
1972
59.2 mm (2.3 in)
1973
31.2 mm (1.2 in)
1974
66.5 mm (2.6 in)
1975
43.7 mm (1.7 in)
1976
44.7 mm (1.8 in)
1977
28.7 mm (1.1 in)
1978
56.4 mm (2.2 in)
1979
41.7 mm (1.6 in)
1980
22.6 mm (0.9 in)
1981
41.9 mm (1.6 in)
1982
83.1 mm (3.3 in)
1983
72.9 mm (2.9 in)
1984
16.5 mm (0.6 in)
1985
72.4 mm (2.9 in)
1986
59.7 mm (2.4 in)
1987
34.8 mm (1.4 in)
1988
37.3 mm (1.5 in)
1989
21.3 mm (0.8 in)
1990
19.6 mm (0.8 in)
1991
31.5 mm (1.2 in)
1992
35.8 mm (1.4 in)
1993
49.3 mm (1.9 in)
1994
37.1 mm (1.5 in)
1995
57.9 mm (2.3 in)
1996
33.5 mm (1.3 in)
1997
25.1 mm (1.0 in)
1998
30.7 mm (1.2 in)
1999
49.3 mm (1.9 in)
2000
41.1 mm (1.6 in)
2001
45.7 mm (1.8 in)
2002
24.4 mm (1.0 in)
2003
53.1 mm (2.1 in)
2004
32.5 mm (1.3 in)
2005
50.3 mm (2.0 in)
2006
50.8 mm (2.0 in)
2007
51.3 mm (2.0 in)
2008
49.0 mm (1.9 in)
2009
38.9 mm (1.5 in)
2010
35.8 mm (1.4 in)
2011
78.0 mm (3.1 in)
2012
34.0 mm (1.3 in)
2013
58.7 mm (2.3 in)
2014
68.6 mm (2.7 in)
2015
40.9 mm (1.6 in)
2016
68.1 mm (2.7 in)
2017
21.1 mm (0.8 in)
2018
17.8 mm (0.7 in)
2019
28.4 mm (1.1 in)
2020
28.4 mm (1.1 in)
2021
21.6 mm (0.9 in)
2022
36.3 mm (1.4 in)
2023
92.7 mm (3.6 in)
2024
25.7 mm (1.0 in)
2025
27.9 mm (1.1 in)
2026
19.8 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hinsdale 4 SW, 1971 to 2026. The record is 185.4 mm (7.3 in) in 2014, marked on the chart; the median year is 56.6 mm (2.2 in).
Wettest five days (Rx5day) at Hinsdale 4 SW by year
Year
Wettest five days (Rx5day)
1971
41.6 mm (1.6 in)
1972
66.0 mm (2.6 in)
1973
52.8 mm (2.1 in)
1974
104.4 mm (4.1 in)
1975
66.3 mm (2.6 in)
1976
63.0 mm (2.5 in)
1977
57.1 mm (2.2 in)
1978
104.7 mm (4.1 in)
1979
43.2 mm (1.7 in)
1980
32.3 mm (1.3 in)
1981
47.3 mm (1.9 in)
1982
103.5 mm (4.1 in)
1983
76.4 mm (3.0 in)
1984
27.7 mm (1.1 in)
1985
138.2 mm (5.4 in)
1986
82.0 mm (3.2 in)
1987
52.0 mm (2.0 in)
1988
55.3 mm (2.2 in)
1989
40.1 mm (1.6 in)
1990
37.4 mm (1.5 in)
1991
53.9 mm (2.1 in)
1992
52.1 mm (2.1 in)
1993
63.3 mm (2.5 in)
1994
41.2 mm (1.6 in)
1995
68.8 mm (2.7 in)
1996
83.1 mm (3.3 in)
1997
48.7 mm (1.9 in)
1998
72.5 mm (2.9 in)
1999
80.8 mm (3.2 in)
2000
56.1 mm (2.2 in)
2001
85.4 mm (3.4 in)
2002
65.8 mm (2.6 in)
2003
61.2 mm (2.4 in)
2004
63.8 mm (2.5 in)
2005
88.7 mm (3.5 in)
2006
35.6 mm (1.4 in)
2007
115.3 mm (4.5 in)
2008
49.0 mm (1.9 in)
2009
52.3 mm (2.1 in)
2010
66.3 mm (2.6 in)
2011
101.1 mm (4.0 in)
2012
23.6 mm (0.9 in)
2013
97.5 mm (3.8 in)
2014
185.4 mm (7.3 in)
2015
56.1 mm (2.2 in)
2016
87.3 mm (3.4 in)
2017
27.2 mm (1.1 in)
2018
30.3 mm (1.2 in)
2019
71.4 mm (2.8 in)
2020
29.2 mm (1.1 in)
2021
24.6 mm (1.0 in)
2022
41.4 mm (1.6 in)
2023
107.9 mm (4.2 in)
2024
46.8 mm (1.8 in)
2025
39.6 mm (1.6 in)
2026
47.0 mm (1.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hinsdale 4 SW, 1971 to 2026. The record is 83 days in 1987, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Hinsdale 4 SW by year
Year
Longest dry spell (CDD)
1971
41 days
1972
29 days
1973
35 days
1974
27 days
1975
27 days
1976
32 days
1977
28 days
1978
20 days
1979
30 days
1980
46 days
1981
34 days
1982
43 days
1983
32 days
1984
26 days
1985
61 days
1986
31 days
1987
83 days
1988
28 days
1989
29 days
1990
29 days
1991
27 days
1992
41 days
1993
37 days
1994
31 days
1995
47 days
1996
29 days
1997
41 days
1998
27 days
1999
23 days
2000
33 days
2001
35 days
2002
31 days
2003
23 days
2004
32 days
2005
66 days
2006
38 days
2007
40 days
2008
41 days
2009
54 days
2010
57 days
2011
2 days
2012
19 days
2013
33 days
2014
32 days
2015
12 days
2016
33 days
2017
60 days
2018
28 days
2019
27 days
2020
53 days
2021
80 days
2022
46 days
2023
58 days
2024
32 days
2025
36 days
2026
22 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
35 years with a frost
Across 35 years with a frost, the median last spring frost at Hinsdale 4 SW falls on 6 May and the median first autumn frost on 21 September, which leaves a median of 140 days between them.
Fitted over all years, the growing season changes by +0.7 days per decade at this station.
Frost dates and growing season at Hinsdale 4 SW
Measure
Median, all years
Earliest period
Recent period (1977 to 2025)
Recent against earliest
Fitted trend
Last spring frost
6 May
n/a
8 May
n/a
+1.0 days per decade
First autumn frost
21 September
n/a
24 September
n/a
+1.7 days per decade
Growing days
140 days
n/a
141 days
n/a
+0.7 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, 1972 to 2025
A day with at least 38.1 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 102.9 mm (4.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Hinsdale 4 SW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
38.1 mm (1.5 in)
5 years
54.4 mm (2.1 in)
10 years
65.6 mm (2.6 in)
25 years
80.2 mm (3.2 in)
50 years
91.4 mm (3.6 in)
Longer than the 46 years of record
100 years
102.9 mm (4.1 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 1972 to 2025.
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: 92.7 mm (3.6 in) in 2023; 83.1 mm (3.3 in) in 1982; 72.9 mm (2.9 in) in 1983.
Download the Data
Data for Hinsdale 4 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hinsdale 4 SW 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.