Record envelope, standing records and threshold days for Deer Lodge 3 W (USC00242275), Montana, United States, with 68 years of record.
Key Facts for Deer Lodge 3 W
Deer Lodge 3 W (USC00242275) is a weather station in Montana, United States at 46.39 latitude and -112.80 longitude, 1,476 m (4,842 ft) above sea level.
The station reports from 1959 to 2026, 68 years of record.
1,464 records set at Deer Lodge 3 W still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Deer Lodge 3 W set a daily record high maximum temperature of 37.2 C (99.0 F) on 25 July 2026.
About the Station
Location: Montana, United States, 46.39 latitude, -112.80 longitude.
Elevation: 1,476 m (4,842 ft).
Period of record: 1959 to 2026, 68 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 Deer Lodge 3 W. 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 Deer Lodge 3 W, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.7 C (62.1 F)
-40.0 C (-40.0 F)
13.3 C (55.9 F)
-21.1 C (-6.0 F)
Feb
20.6 C (69.1 F)
-38.3 C (-36.9 F)
15.0 C (59.0 F)
-21.7 C (-7.1 F)
Mar
22.8 C (73.0 F)
-33.9 C (-29.0 F)
22.8 C (73.0 F)
-21.1 C (-6.0 F)
Apr
28.3 C (82.9 F)
-22.2 C (-8.0 F)
26.1 C (79.0 F)
-8.9 C (16.0 F)
May
32.2 C (90.0 F)
-13.9 C (7.0 F)
31.1 C (88.0 F)
-7.8 C (18.0 F)
Jun
35.6 C (96.1 F)
-5.6 C (21.9 F)
27.8 C (82.0 F)
-3.9 C (25.0 F)
Jul
38.3 C (100.9 F)
-6.7 C (19.9 F)
37.2 C (99.0 F)
3.9 C (39.0 F)
Aug
37.8 C (100.0 F)
-7.2 C (19.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-12.8 C (9.0 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-26.1 C (-15.0 F)
n/a
n/a
Nov
22.8 C (73.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Deer Lodge 3 W still stand. 1969 holds the most, with 37.
Standing records at Deer Lodge 3 W by the year they were set
Year set
Standing records
1959
16
1960
22
1961
27
1962
27
1963
28
1964
27
1965
32
1966
33
1967
28
1968
17
1969
37
1970
21
1971
25
1972
35
1973
27
1974
24
1975
34
1976
12
1977
25
1978
24
1979
21
1980
20
1981
12
1982
11
1983
29
1984
28
1985
37
1986
26
1987
26
1988
23
1989
31
1990
24
1991
13
1992
23
1993
27
1994
11
1995
24
1996
18
1997
15
1998
3
1999
16
2000
17
2001
13
2002
26
2003
24
2004
21
2005
16
2006
26
2007
16
2008
22
2009
24
2010
12
2013
16
2014
20
2015
28
2016
13
2017
11
2018
2
2019
22
2020
27
2021
27
2022
30
2023
15
2024
27
2025
31
2026
19
All-Time Record Progression
3 new records
3 all-time records were set at Deer Lodge 3 W between 2 February 1989 and 15 July 2002. Each dot is a new record.
When Deer Lodge 3 W set new all-time records
Date
Kind
Detail
1989-02-02
Record low maximum temperature
Record low maximum temperature -31.7 C (-25.1 F)
1997-07-31
Record daily precipitation
Record daily precipitation 54.1 mm (2.1 in)
2002-07-15
Record high maximum temperature
Record high maximum temperature 38.3 C (100.9 F)
Wettest Day of Each Month
Jul: 54.1 mm (2.1 in)
The wettest day on record for each calendar month at Deer Lodge 3 W. The most was 54.1 mm (2.1 in) on 31 July 1997.
Record daily precipitation for each month at Deer Lodge 3 W
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
17 January 2023
Feb
27.7 mm (1.1 in)
25 February 2002
Mar
32.8 mm (1.3 in)
17 March 1992
Apr
25.4 mm (1.0 in)
2 April 2018
May
36.6 mm (1.4 in)
25 May 1980
Jun
34.0 mm (1.3 in)
4 June 2001
Jul
54.1 mm (2.1 in)
31 July 1997
Aug
23.1 mm (0.9 in)
28 August 1991
Sep
38.9 mm (1.5 in)
20 September 1968
Oct
20.3 mm (0.8 in)
13 October 1975
Nov
20.3 mm (0.8 in)
3 November 2015
Dec
22.9 mm (0.9 in)
7 December 2021
Period of Record Coverage
1959 to 2026
Complete yearUnder 90 percent of days
66 years of record at Deer Lodge 3 W, 1959 to 2026. 24 years have data for under 90 percent of days and are left out of rankings: 1959, 1982, 1983, 1986, 1989, 1991, 1992, 1994 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 37 complete years at Deer Lodge 3 W, 1960 to 2025. Blue stripes are years cooler than the station's own mean of 5.0 C (41.0 F); red stripes are warmer. The coolest year was 1985, at 2.7 C (36.8 F), and the warmest was 2025, at 6.2 C (43.2 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Deer Lodge 3 W as warming stripes, 1960 to 2025
Year
Annual mean temperature
Difference from the station mean
1960
4.6 C
-0.42 C
1962
5.0 C
+0.02 C
1963
5.6 C
+0.63 C
1964
4.4 C
-0.62 C
1965
4.8 C
-0.19 C
1966
5.8 C
+0.82 C
1967
5.6 C
+0.57 C
1968
5.0 C
+0.03 C
1969
4.7 C
-0.29 C
1970
5.1 C
+0.12 C
1971
5.1 C
+0.10 C
1972
4.8 C
-0.21 C
1973
5.4 C
+0.43 C
1974
5.6 C
+0.61 C
1975
3.8 C
-1.23 C
1976
5.7 C
+0.65 C
1977
5.1 C
+0.10 C
1978
4.7 C
-0.35 C
1979
4.9 C
-0.16 C
1980
5.6 C
+0.59 C
1981
6.1 C
+1.06 C
1984
4.2 C
-0.81 C
1985
2.7 C
-2.33 C
1988
5.4 C
+0.36 C
1990
5.2 C
+0.14 C
1993
3.2 C
-1.84 C
1995
4.8 C
-0.17 C
2005
5.0 C
-0.02 C
2006
6.2 C
+1.19 C
2007
5.9 C
+0.92 C
2008
4.4 C
-0.64 C
2009
4.5 C
-0.49 C
2015
6.0 C
+1.01 C
2020
4.9 C
-0.15 C
2022
4.1 C
-0.90 C
2023
5.3 C
+0.32 C
2025
6.2 C
+1.21 C
The fitted trend in annual mean temperature here over 1960 to 2025 is 0.03 C (-0.11 to 0.16) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.20 to 0.29) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Deer Lodge 3 W
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.03 C (-0.11 to 0.16) per decade
0.05 F (-0.20 to 0.29) per decade
1960 to 2025
37
Not clearly different from zero
Mean daily maximum
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.4) per decade
1960 to 2025
37
Not clearly different from zero
Mean daily minimum
-0.03 C (-0.18 to 0.13) per decade
-0.05 F (-0.32 to 0.23) per decade
1960 to 2025
37
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
1959 to 2026
Yearly extremes at Deer Lodge 3 W: 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)
2002
33.9 C (93.0 F)
66
Coldest night (TNn)
-40.0 C (-40.0 F)
1978
-32.2 C (-26.0 F)
66
Wettest day (Rx1day)
54.1 mm (2.1 in)
1997
21.5 mm (0.8 in)
66
Wettest five days (Rx5day)
73.9 mm (2.9 in)
1980
34.8 mm (1.4 in)
66
Longest dry spell (CDD)
71 days
1994
31 days
66
Hottest day (TXx)
The hottest day of the year at Deer Lodge 3 W, 1959 to 2026. The record is 38.3 C (100.9 F) in 2002, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Deer Lodge 3 W by year
Year
Hottest day (TXx)
1959
34.4 C (93.9 F)
1960
35.6 C (96.1 F)
1961
37.8 C (100.0 F)
1962
32.8 C (91.0 F)
1963
33.9 C (93.0 F)
1964
33.9 C (93.0 F)
1965
33.3 C (91.9 F)
1966
35.0 C (95.0 F)
1967
34.4 C (93.9 F)
1968
33.9 C (93.0 F)
1969
37.8 C (100.0 F)
1970
34.4 C (93.9 F)
1971
35.6 C (96.1 F)
1972
34.4 C (93.9 F)
1973
36.1 C (97.0 F)
1974
34.4 C (93.9 F)
1975
34.4 C (93.9 F)
1976
31.7 C (89.1 F)
1977
33.3 C (91.9 F)
1978
33.9 C (93.0 F)
1979
33.9 C (93.0 F)
1980
32.2 C (90.0 F)
1981
33.9 C (93.0 F)
1982
32.8 C (91.0 F)
1983
36.1 C (97.0 F)
1984
35.0 C (95.0 F)
1985
33.3 C (91.9 F)
1986
32.2 C (90.0 F)
1987
33.9 C (93.0 F)
1988
35.6 C (96.1 F)
1989
35.6 C (96.1 F)
1990
35.6 C (96.1 F)
1991
35.0 C (95.0 F)
1992
33.9 C (93.0 F)
1993
32.2 C (90.0 F)
1994
32.8 C (91.0 F)
1995
33.9 C (93.0 F)
1996
32.8 C (91.0 F)
1997
26.7 C (80.1 F)
1998
35.0 C (95.0 F)
1999
35.0 C (95.0 F)
2000
36.7 C (98.1 F)
2001
33.3 C (91.9 F)
2002
38.3 C (100.9 F)
2003
36.7 C (98.1 F)
2004
35.0 C (95.0 F)
2005
33.3 C (91.9 F)
2006
35.0 C (95.0 F)
2007
34.4 C (93.9 F)
2008
32.8 C (91.0 F)
2009
32.8 C (91.0 F)
2010
33.9 C (93.0 F)
2013
35.6 C (96.1 F)
2014
32.8 C (91.0 F)
2015
35.0 C (95.0 F)
2016
33.3 C (91.9 F)
2017
32.2 C (90.0 F)
2018
32.2 C (90.0 F)
2019
32.8 C (91.0 F)
2020
32.8 C (91.0 F)
2021
35.6 C (96.1 F)
2022
36.7 C (98.1 F)
2023
33.9 C (93.0 F)
2024
37.2 C (99.0 F)
2025
33.3 C (91.9 F)
2026
37.2 C (99.0 F)
Coldest night (TNn)
The coldest night of the year at Deer Lodge 3 W, 1959 to 2026. The record is -40.0 C (-40.0 F) in 1978, marked on the chart; the median year is -32.2 C (-26.0 F).
Coldest night (TNn) at Deer Lodge 3 W by year
Year
Coldest night (TNn)
1959
-38.9 C (-38.0 F)
1960
-30.6 C (-23.1 F)
1961
-33.3 C (-27.9 F)
1962
-37.8 C (-36.0 F)
1963
-37.8 C (-36.0 F)
1964
-39.4 C (-38.9 F)
1965
-29.4 C (-20.9 F)
1966
-26.1 C (-15.0 F)
1967
-29.4 C (-20.9 F)
1968
-35.0 C (-31.0 F)
1969
-34.4 C (-29.9 F)
1970
-33.3 C (-27.9 F)
1971
-31.7 C (-25.1 F)
1972
-37.8 C (-36.0 F)
1973
-33.3 C (-27.9 F)
1974
-34.4 C (-29.9 F)
1975
-32.2 C (-26.0 F)
1976
-30.0 C (-22.0 F)
1977
-30.0 C (-22.0 F)
1978
-40.0 C (-40.0 F)
1979
-36.7 C (-34.1 F)
1980
-30.6 C (-23.1 F)
1981
-38.3 C (-36.9 F)
1982
-34.4 C (-29.9 F)
1983
-40.0 C (-40.0 F)
1984
-31.1 C (-24.0 F)
1985
-33.9 C (-29.0 F)
1986
-32.2 C (-26.0 F)
1987
-27.8 C (-18.0 F)
1988
-29.4 C (-20.9 F)
1989
-38.3 C (-36.9 F)
1990
-39.4 C (-38.9 F)
1991
-33.3 C (-27.9 F)
1992
-28.3 C (-18.9 F)
1993
-31.7 C (-25.1 F)
1994
-21.1 C (-6.0 F)
1995
-27.2 C (-17.0 F)
1996
-37.8 C (-36.0 F)
1997
-31.1 C (-24.0 F)
1998
-33.9 C (-29.0 F)
1999
-21.7 C (-7.1 F)
2000
-30.6 C (-23.1 F)
2001
-27.2 C (-17.0 F)
2002
-29.4 C (-20.9 F)
2003
-37.2 C (-35.0 F)
2004
-37.2 C (-35.0 F)
2005
-33.3 C (-27.9 F)
2006
-30.6 C (-23.1 F)
2007
-27.2 C (-17.0 F)
2008
-33.3 C (-27.9 F)
2009
-34.4 C (-29.9 F)
2010
-31.7 C (-25.1 F)
2013
-29.4 C (-20.9 F)
2014
-38.3 C (-36.9 F)
2015
-27.8 C (-18.0 F)
2016
-23.9 C (-11.0 F)
2017
-32.2 C (-26.0 F)
2018
-27.8 C (-18.0 F)
2019
-33.9 C (-29.0 F)
2020
-25.6 C (-14.1 F)
2021
-31.7 C (-25.1 F)
2022
-40.0 C (-40.0 F)
2023
-31.7 C (-25.1 F)
2024
-40.0 C (-40.0 F)
2025
-32.8 C (-27.0 F)
2026
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Deer Lodge 3 W, 1959 to 2026. The record is 54.1 mm (2.1 in) in 1997, marked on the chart; the median year is 21.5 mm (0.8 in).
Wettest day (Rx1day) at Deer Lodge 3 W by year
Year
Wettest day (Rx1day)
1959
20.6 mm (0.8 in)
1960
12.2 mm (0.5 in)
1961
14.7 mm (0.6 in)
1962
20.1 mm (0.8 in)
1963
21.6 mm (0.9 in)
1964
15.5 mm (0.6 in)
1965
21.8 mm (0.9 in)
1966
13.7 mm (0.5 in)
1967
20.8 mm (0.8 in)
1968
38.9 mm (1.5 in)
1969
20.1 mm (0.8 in)
1970
25.4 mm (1.0 in)
1971
20.8 mm (0.8 in)
1972
13.2 mm (0.5 in)
1973
14.0 mm (0.6 in)
1974
17.8 mm (0.7 in)
1975
24.1 mm (0.9 in)
1976
15.5 mm (0.6 in)
1977
16.5 mm (0.6 in)
1978
15.7 mm (0.6 in)
1979
19.3 mm (0.8 in)
1980
36.6 mm (1.4 in)
1981
31.2 mm (1.2 in)
1982
21.1 mm (0.8 in)
1983
11.2 mm (0.4 in)
1984
23.9 mm (0.9 in)
1985
24.1 mm (0.9 in)
1986
17.0 mm (0.7 in)
1987
23.1 mm (0.9 in)
1988
32.0 mm (1.3 in)
1989
20.1 mm (0.8 in)
1990
30.5 mm (1.2 in)
1991
23.1 mm (0.9 in)
1992
32.8 mm (1.3 in)
1993
16.5 mm (0.6 in)
1994
10.2 mm (0.4 in)
1995
30.0 mm (1.2 in)
1996
22.1 mm (0.9 in)
1997
54.1 mm (2.1 in)
1998
21.3 mm (0.8 in)
1999
20.3 mm (0.8 in)
2000
21.3 mm (0.8 in)
2001
34.0 mm (1.3 in)
2002
32.5 mm (1.3 in)
2003
13.2 mm (0.5 in)
2004
30.5 mm (1.2 in)
2005
24.1 mm (0.9 in)
2006
24.9 mm (1.0 in)
2007
27.9 mm (1.1 in)
2008
15.5 mm (0.6 in)
2009
17.0 mm (0.7 in)
2010
9.1 mm (0.36 in)
2013
22.4 mm (0.9 in)
2014
20.1 mm (0.8 in)
2015
26.4 mm (1.0 in)
2016
10.2 mm (0.4 in)
2017
32.0 mm (1.3 in)
2018
25.4 mm (1.0 in)
2019
24.9 mm (1.0 in)
2020
31.5 mm (1.2 in)
2021
22.9 mm (0.9 in)
2022
20.1 mm (0.8 in)
2023
25.4 mm (1.0 in)
2024
22.6 mm (0.9 in)
2025
20.6 mm (0.8 in)
2026
31.0 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Deer Lodge 3 W, 1959 to 2026. The record is 73.9 mm (2.9 in) in 1980, marked on the chart; the median year is 34.8 mm (1.4 in).
Wettest five days (Rx5day) at Deer Lodge 3 W by year
Year
Wettest five days (Rx5day)
1959
29.0 mm (1.1 in)
1960
21.8 mm (0.9 in)
1961
20.8 mm (0.8 in)
1962
32.3 mm (1.3 in)
1963
34.9 mm (1.4 in)
1964
30.7 mm (1.2 in)
1965
48.2 mm (1.9 in)
1966
22.1 mm (0.9 in)
1967
40.3 mm (1.6 in)
1968
51.1 mm (2.0 in)
1969
57.3 mm (2.3 in)
1970
45.5 mm (1.8 in)
1971
30.4 mm (1.2 in)
1972
22.9 mm (0.9 in)
1973
19.8 mm (0.8 in)
1974
20.9 mm (0.8 in)
1975
38.6 mm (1.5 in)
1976
20.9 mm (0.8 in)
1977
37.3 mm (1.5 in)
1978
32.2 mm (1.3 in)
1979
23.4 mm (0.9 in)
1980
73.9 mm (2.9 in)
1981
51.1 mm (2.0 in)
1982
52.6 mm (2.1 in)
1983
17.6 mm (0.7 in)
1984
33.3 mm (1.3 in)
1985
41.1 mm (1.6 in)
1986
35.3 mm (1.4 in)
1987
35.3 mm (1.4 in)
1988
41.4 mm (1.6 in)
1989
50.9 mm (2.0 in)
1990
38.4 mm (1.5 in)
1991
32.5 mm (1.3 in)
1992
39.4 mm (1.6 in)
1993
32.3 mm (1.3 in)
1994
32.8 mm (1.3 in)
1995
67.9 mm (2.7 in)
1996
35.6 mm (1.4 in)
1997
54.1 mm (2.1 in)
1998
15.7 mm (0.6 in)
1999
22.9 mm (0.9 in)
2000
18.3 mm (0.7 in)
2001
35.3 mm (1.4 in)
2002
36.8 mm (1.4 in)
2003
13.7 mm (0.5 in)
2004
36.1 mm (1.4 in)
2005
35.3 mm (1.4 in)
2006
46.8 mm (1.8 in)
2007
43.9 mm (1.7 in)
2008
18.6 mm (0.7 in)
2009
27.7 mm (1.1 in)
2010
11.7 mm (0.5 in)
2013
24.9 mm (1.0 in)
2014
21.6 mm (0.9 in)
2015
27.7 mm (1.1 in)
2016
10.7 mm (0.4 in)
2017
52.6 mm (2.1 in)
2018
50.9 mm (2.0 in)
2019
34.8 mm (1.4 in)
2020
62.8 mm (2.5 in)
2021
41.9 mm (1.6 in)
2022
26.7 mm (1.1 in)
2023
41.5 mm (1.6 in)
2024
27.7 mm (1.1 in)
2025
28.5 mm (1.1 in)
2026
50.8 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Deer Lodge 3 W, 1959 to 2026. The record is 71 days in 1994, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Deer Lodge 3 W by year
Year
Longest dry spell (CDD)
1959
23 days
1960
59 days
1961
29 days
1962
26 days
1963
26 days
1964
31 days
1965
25 days
1966
31 days
1967
31 days
1968
39 days
1969
35 days
1970
35 days
1971
25 days
1972
28 days
1973
30 days
1974
24 days
1975
24 days
1976
31 days
1977
43 days
1978
19 days
1979
44 days
1980
25 days
1981
38 days
1982
19 days
1983
30 days
1984
58 days
1985
65 days
1986
56 days
1987
58 days
1988
69 days
1989
26 days
1990
37 days
1991
44 days
1992
52 days
1993
36 days
1994
71 days
1995
45 days
1996
22 days
1997
42 days
1998
21 days
1999
20 days
2000
11 days
2001
31 days
2002
27 days
2003
19 days
2004
48 days
2005
30 days
2006
32 days
2007
32 days
2008
16 days
2009
41 days
2010
16 days
2013
6 days
2014
5 days
2015
12 days
2016
5 days
2017
10 days
2018
28 days
2019
34 days
2020
43 days
2021
40 days
2022
34 days
2023
55 days
2024
43 days
2025
29 days
2026
39 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
37 years with a frost
Across 37 years with a frost, the median last spring frost at Deer Lodge 3 W falls on 23 June and the median first autumn frost on 10 August, which leaves a median of 57 days between them.
Fitted over all years, the growing season changes by +4.4 days per decade at this station.
Frost dates and growing season at Deer Lodge 3 W
Measure
Median, all years
Earliest period
Recent period (1968 to 2025)
Recent against earliest
Fitted trend
Last spring frost
23 June
n/a
23 June
n/a
+0.5 days per decade
First autumn frost
10 August
n/a
12 August
n/a
+4.9 days per decade
Growing days
57 days
n/a
60 days
n/a
+4.4 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
38 years, 1960 to 2025
A day with at least 20.9 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 39.8 mm (1.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Deer Lodge 3 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
20.9 mm (0.8 in)
5 years
26.4 mm (1.0 in)
10 years
29.8 mm (1.2 in)
25 years
34.0 mm (1.3 in)
50 years
37.0 mm (1.5 in)
Longer than the 38 years of record
100 years
39.8 mm (1.6 in)
Longer than the 38 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, 38 years of values from 1960 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: 38.9 mm (1.5 in) in 1968; 36.6 mm (1.4 in) in 1980; 31.5 mm (1.2 in) in 2020.
Download the Data
Data for Deer Lodge 3 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Deer Lodge 3 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.