Record envelope, standing records and threshold days for Carter 14 W (USC00241525), Montana, United States, with 45 years of record.
Key Facts for Carter 14 W
Carter 14 W (USC00241525) is a weather station in Montana, United States at 47.79 latitude and -111.22 longitude, 1,052 m (3,450 ft) above sea level.
The station reports from 1982 to 2026, 45 years of record.
1,464 records set at Carter 14 W still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Carter 14 W set a daily record high maximum temperature of 40.0 C (104.0 F) on 25 July 2026.
About the Station
Location: Montana, United States, 47.79 latitude, -111.22 longitude.
Elevation: 1,052 m (3,450 ft).
Period of record: 1982 to 2026, 45 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
15 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 Carter 14 W. The lines show the 2026 daily maximum and minimum. 15 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Carter 14 W, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.0 C (68.0 F)
-38.3 C (-36.9 F)
20.0 C (68.0 F)
-23.3 C (-9.9 F)
Feb
23.9 C (75.0 F)
-36.7 C (-34.1 F)
22.2 C (72.0 F)
-26.7 C (-16.1 F)
Mar
26.7 C (80.1 F)
-33.9 C (-29.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-20.0 C (-4.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-11.1 C (12.0 F)
33.3 C (91.9 F)
-5.6 C (21.9 F)
Jun
40.6 C (105.1 F)
-1.7 C (28.9 F)
31.7 C (89.1 F)
3.3 C (37.9 F)
Jul
41.7 C (107.1 F)
-0.6 C (30.9 F)
40.0 C (104.0 F)
7.2 C (45.0 F)
Aug
41.7 C (107.1 F)
-0.6 C (30.9 F)
30.0 C (86.0 F)
7.2 C (45.0 F)
Sep
37.8 C (100.0 F)
-11.7 C (10.9 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-25.0 C (-13.0 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-32.8 C (-27.0 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Carter 14 W still stand. 1992 holds the most, with 62.
Standing records at Carter 14 W by the year they were set
Year set
Standing records
1983
29
1984
38
1985
61
1986
48
1987
53
1988
44
1989
46
1990
42
1991
42
1992
62
1993
31
1994
45
1995
32
1996
61
1997
48
1998
22
1999
33
2000
31
2001
23
2002
47
2003
42
2004
30
2005
45
2006
25
2007
25
2008
36
2009
41
2010
23
2011
19
2012
31
2013
18
2015
17
2016
16
2017
8
2018
3
2019
36
2020
38
2021
50
2022
35
2023
27
2024
31
2025
9
2026
21
All-Time Record Progression
3 new records
3 all-time records were set at Carter 14 W between 7 August 2023 and 12 January 2024. Each dot is a new record.
When Carter 14 W set new all-time records
Date
Kind
Detail
2023-08-07
Record high minimum temperature
Record high minimum temperature 22.2 C (72.0 F)
2023-08-17
Record high minimum temperature
Record high minimum temperature 23.3 C (73.9 F)
2024-01-12
Record low minimum temperature
Record low minimum temperature -38.3 C (-36.9 F)
Wettest Day of Each Month
Jun: 65.5 mm (2.6 in)
The wettest day on record for each calendar month at Carter 14 W. The most was 65.5 mm (2.6 in) on 10 June 2002.
Record daily precipitation for each month at Carter 14 W
Month
Record daily precipitation (mm)
Date
Jan
20.1 mm (0.8 in)
24 January 2010
Feb
14.7 mm (0.6 in)
22 February 1984
Mar
17.8 mm (0.7 in)
19 March 2012
Apr
33.0 mm (1.3 in)
29 April 2010
May
51.6 mm (2.0 in)
7 May 2024
Jun
65.5 mm (2.6 in)
10 June 2002
Jul
50.8 mm (2.0 in)
10 July 1983
Aug
50.3 mm (2.0 in)
19 August 1990
Sep
35.6 mm (1.4 in)
12 September 1985
Oct
36.1 mm (1.4 in)
22 October 2022
Nov
19.6 mm (0.8 in)
27 November 2005
Dec
19.8 mm (0.8 in)
13 December 2008
Period of Record Coverage
1982 to 2026
Complete yearUnder 90 percent of days
44 years of record at Carter 14 W, 1982 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1982, 2011, 2013, 2015, 2017, 2018, 2025, 2026.
Cooler than the station meanWarmer than the station mean
One stripe for each of 36 complete years at Carter 14 W, 1983 to 2024. Blue stripes are years cooler than the station's own mean of 7.3 C (45.2 F); red stripes are warmer. The coolest year was 2019, at 4.6 C (40.3 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 Carter 14 W as warming stripes, 1983 to 2024
Year
Annual mean temperature
Difference from the station mean
1983
6.9 C
-0.40 C
1984
6.8 C
-0.51 C
1985
5.6 C
-1.78 C
1986
7.9 C
+0.53 C
1987
9.1 C
+1.75 C
1988
8.7 C
+1.32 C
1989
6.4 C
-0.92 C
1990
7.9 C
+0.54 C
1991
8.1 C
+0.71 C
1992
8.4 C
+1.03 C
1993
6.1 C
-1.28 C
1994
7.9 C
+0.56 C
1995
6.9 C
-0.47 C
1996
5.2 C
-2.14 C
1997
7.5 C
+0.19 C
1998
8.4 C
+1.09 C
1999
8.5 C
+1.19 C
2000
7.1 C
-0.29 C
2001
8.1 C
+0.72 C
2002
6.5 C
-0.83 C
2003
7.8 C
+0.47 C
2004
7.6 C
+0.21 C
2005
7.4 C
+0.08 C
2006
8.3 C
+0.99 C
2007
8.1 C
+0.77 C
2008
6.9 C
-0.48 C
2009
6.6 C
-0.76 C
2010
6.5 C
-0.81 C
2012
8.0 C
+0.68 C
2016
8.1 C
+0.73 C
2019
4.6 C
-2.75 C
2020
7.0 C
-0.31 C
2021
7.1 C
-0.20 C
2022
6.8 C
-0.50 C
2023
8.2 C
+0.87 C
2024
7.5 C
+0.12 C
The fitted trend in annual mean temperature here over 1983 to 2024 is -0.1 C (-0.4 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.6 to 0.4) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Carter 14 W
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.4 to 0.2) per decade
-0.1 F (-0.6 to 0.4) per decade
1983 to 2024
36
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.4 to 0.3) per decade
-0.1 F (-0.8 to 0.5) per decade
1983 to 2024
36
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.3 to 0.2) per decade
-0.1 F (-0.5 to 0.3) per decade
1983 to 2024
36
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
1982 to 2026
Yearly extremes at Carter 14 W: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.7 C (107.1 F)
1990
38.1 C (100.5 F)
44
Coldest night (TNn)
-38.3 C (-36.9 F)
2024
-32.2 C (-26.0 F)
44
Wettest day (Rx1day)
65.5 mm (2.6 in)
2002
32.8 mm (1.3 in)
44
Wettest five days (Rx5day)
115.1 mm (4.5 in)
2002
48.3 mm (1.9 in)
44
Longest dry spell (CDD)
69 days
2004
32 days
44
Hottest day (TXx)
The hottest day of the year at Carter 14 W, 1982 to 2026. The record is 41.7 C (107.1 F) in 1990, marked on the chart; the median year is 38.1 C (100.5 F).
Hottest day (TXx) at Carter 14 W by year
Year
Hottest day (TXx)
1982
12.8 C (55.0 F)
1983
39.4 C (102.9 F)
1984
38.9 C (102.0 F)
1985
39.4 C (102.9 F)
1986
36.1 C (97.0 F)
1987
36.1 C (97.0 F)
1988
38.3 C (100.9 F)
1989
36.7 C (98.1 F)
1990
41.7 C (107.1 F)
1991
40.0 C (104.0 F)
1992
37.8 C (100.0 F)
1993
35.0 C (95.0 F)
1994
37.8 C (100.0 F)
1995
36.1 C (97.0 F)
1996
38.3 C (100.9 F)
1997
36.7 C (98.1 F)
1998
38.9 C (102.0 F)
1999
39.4 C (102.9 F)
2000
39.4 C (102.9 F)
2001
39.4 C (102.9 F)
2002
40.6 C (105.1 F)
2003
41.1 C (106.0 F)
2004
40.0 C (104.0 F)
2005
39.4 C (102.9 F)
2006
40.0 C (104.0 F)
2007
41.7 C (107.1 F)
2008
37.2 C (99.0 F)
2009
36.7 C (98.1 F)
2010
37.8 C (100.0 F)
2011
36.7 C (98.1 F)
2012
38.3 C (100.9 F)
2013
37.2 C (99.0 F)
2015
37.8 C (100.0 F)
2016
36.1 C (97.0 F)
2017
22.8 C (73.0 F)
2018
13.9 C (57.0 F)
2019
35.6 C (96.1 F)
2020
37.8 C (100.0 F)
2021
37.2 C (99.0 F)
2022
39.4 C (102.9 F)
2023
38.9 C (102.0 F)
2024
40.6 C (105.1 F)
2025
36.1 C (97.0 F)
2026
40.0 C (104.0 F)
Coldest night (TNn)
The coldest night of the year at Carter 14 W, 1982 to 2026. The record is -38.3 C (-36.9 F) in 2024, marked on the chart; the median year is -32.2 C (-26.0 F).
Coldest night (TNn) at Carter 14 W by year
Year
Coldest night (TNn)
1982
-18.9 C (-2.0 F)
1983
-37.8 C (-36.0 F)
1984
-33.3 C (-27.9 F)
1985
-32.8 C (-27.0 F)
1986
-32.8 C (-27.0 F)
1987
-24.4 C (-11.9 F)
1988
-28.3 C (-18.9 F)
1989
-37.2 C (-35.0 F)
1990
-37.8 C (-36.0 F)
1991
-31.1 C (-24.0 F)
1992
-34.4 C (-29.9 F)
1993
-32.2 C (-26.0 F)
1994
-34.4 C (-29.9 F)
1995
-29.4 C (-20.9 F)
1996
-36.7 C (-34.1 F)
1997
-37.2 C (-35.0 F)
1998
-33.3 C (-27.9 F)
1999
-24.4 C (-11.9 F)
2000
-30.0 C (-22.0 F)
2001
-25.6 C (-14.1 F)
2002
-32.8 C (-27.0 F)
2003
-29.4 C (-20.9 F)
2004
-31.1 C (-24.0 F)
2005
-34.4 C (-29.9 F)
2006
-33.3 C (-27.9 F)
2007
-23.3 C (-9.9 F)
2008
-32.8 C (-27.0 F)
2009
-32.8 C (-27.0 F)
2010
-30.0 C (-22.0 F)
2011
-33.9 C (-29.0 F)
2012
-31.7 C (-25.1 F)
2013
-22.8 C (-9.0 F)
2015
-22.8 C (-9.0 F)
2016
-30.0 C (-22.0 F)
2017
-30.0 C (-22.0 F)
2018
-28.3 C (-18.9 F)
2019
-33.9 C (-29.0 F)
2020
-28.3 C (-18.9 F)
2021
-36.7 C (-34.1 F)
2022
-32.8 C (-27.0 F)
2023
-32.2 C (-26.0 F)
2024
-38.3 C (-36.9 F)
2025
-23.3 C (-9.9 F)
2026
-26.7 C (-16.1 F)
Wettest day (Rx1day)
The wettest day of the year at Carter 14 W, 1982 to 2026. The record is 65.5 mm (2.6 in) in 2002, marked on the chart; the median year is 32.8 mm (1.3 in).
Wettest day (Rx1day) at Carter 14 W by year
Year
Wettest day (Rx1day)
1982
3.0 mm (0.12 in)
1983
50.8 mm (2.0 in)
1984
19.8 mm (0.8 in)
1985
35.6 mm (1.4 in)
1986
34.8 mm (1.4 in)
1987
35.8 mm (1.4 in)
1988
32.3 mm (1.3 in)
1989
43.9 mm (1.7 in)
1990
50.3 mm (2.0 in)
1991
36.1 mm (1.4 in)
1992
23.4 mm (0.9 in)
1993
25.9 mm (1.0 in)
1994
12.7 mm (0.5 in)
1995
44.2 mm (1.7 in)
1996
20.3 mm (0.8 in)
1997
23.1 mm (0.9 in)
1998
44.7 mm (1.8 in)
1999
43.4 mm (1.7 in)
2000
46.0 mm (1.8 in)
2001
28.4 mm (1.1 in)
2002
65.5 mm (2.6 in)
2003
22.6 mm (0.9 in)
2004
49.0 mm (1.9 in)
2005
42.4 mm (1.7 in)
2006
39.1 mm (1.5 in)
2007
22.9 mm (0.9 in)
2008
46.5 mm (1.8 in)
2009
24.1 mm (0.9 in)
2010
33.0 mm (1.3 in)
2011
32.5 mm (1.3 in)
2012
32.0 mm (1.3 in)
2013
29.2 mm (1.1 in)
2015
20.1 mm (0.8 in)
2016
40.6 mm (1.6 in)
2017
5.1 mm (0.20 in)
2018
6.9 mm (0.27 in)
2019
18.8 mm (0.7 in)
2020
39.1 mm (1.5 in)
2021
26.2 mm (1.0 in)
2022
36.1 mm (1.4 in)
2023
33.8 mm (1.3 in)
2024
51.6 mm (2.0 in)
2025
21.1 mm (0.8 in)
2026
28.4 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Carter 14 W, 1982 to 2026. The record is 115.1 mm (4.5 in) in 2002, marked on the chart; the median year is 48.3 mm (1.9 in).
Wettest five days (Rx5day) at Carter 14 W by year
Year
Wettest five days (Rx5day)
1982
7.0 mm (0.28 in)
1983
58.7 mm (2.3 in)
1984
32.0 mm (1.3 in)
1985
52.3 mm (2.1 in)
1986
41.4 mm (1.6 in)
1987
49.3 mm (1.9 in)
1988
47.3 mm (1.9 in)
1989
81.8 mm (3.2 in)
1990
58.2 mm (2.3 in)
1991
64.5 mm (2.5 in)
1992
36.8 mm (1.4 in)
1993
53.2 mm (2.1 in)
1994
26.5 mm (1.0 in)
1995
53.4 mm (2.1 in)
1996
29.5 mm (1.2 in)
1997
37.0 mm (1.5 in)
1998
64.2 mm (2.5 in)
1999
65.9 mm (2.6 in)
2000
52.9 mm (2.1 in)
2001
33.7 mm (1.3 in)
2002
115.1 mm (4.5 in)
2003
34.8 mm (1.4 in)
2004
62.5 mm (2.5 in)
2005
76.2 mm (3.0 in)
2006
74.4 mm (2.9 in)
2007
39.8 mm (1.6 in)
2008
99.5 mm (3.9 in)
2009
47.0 mm (1.9 in)
2010
72.1 mm (2.8 in)
2011
54.1 mm (2.1 in)
2012
39.9 mm (1.6 in)
2013
70.4 mm (2.8 in)
2015
38.8 mm (1.5 in)
2016
57.2 mm (2.3 in)
2017
9.6 mm (0.38 in)
2018
17.8 mm (0.7 in)
2019
35.6 mm (1.4 in)
2020
44.0 mm (1.7 in)
2021
35.6 mm (1.4 in)
2022
37.9 mm (1.5 in)
2023
39.4 mm (1.6 in)
2024
56.4 mm (2.2 in)
2025
25.4 mm (1.0 in)
2026
59.6 mm (2.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Carter 14 W, 1982 to 2026. The record is 69 days in 2004, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Carter 14 W by year
Year
Longest dry spell (CDD)
1982
29 days
1983
25 days
1984
48 days
1985
27 days
1986
23 days
1987
52 days
1988
38 days
1989
24 days
1990
67 days
1991
32 days
1992
24 days
1993
25 days
1994
39 days
1995
57 days
1996
29 days
1997
31 days
1998
28 days
1999
34 days
2000
21 days
2001
35 days
2002
28 days
2003
42 days
2004
69 days
2005
58 days
2006
24 days
2007
42 days
2008
24 days
2009
37 days
2010
29 days
2011
17 days
2012
42 days
2013
36 days
2015
32 days
2016
61 days
2017
17 days
2018
24 days
2019
23 days
2020
39 days
2021
67 days
2022
21 days
2023
45 days
2024
48 days
2025
28 days
2026
32 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
36 years with a frost
Across 36 years with a frost, the median last spring frost at Carter 14 W falls on 23 May and the median first autumn frost on 20 September, which leaves a median of 120 days between them.
Fitted over all years, the growing season changes by +3.6 days per decade at this station.
Frost dates and growing season at Carter 14 W
Measure
Median, all years
Earliest period
Recent period (1989 to 2024)
Recent against earliest
Fitted trend
Last spring frost
23 May
n/a
23 May
n/a
-1.2 days per decade
First autumn frost
20 September
n/a
21 September
n/a
+2.3 days per decade
Growing days
120 days
n/a
120 days
n/a
+3.6 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
36 years, 1983 to 2024
A day with at least 35.1 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 62.9 mm (2.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Carter 14 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
35.1 mm (1.4 in)
5 years
45.5 mm (1.8 in)
10 years
51.0 mm (2.0 in)
25 years
56.6 mm (2.2 in)
50 years
60.0 mm (2.4 in)
Longer than the 36 years of record
100 years
62.9 mm (2.5 in)
Longer than the 36 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, 36 years of values from 1983 to 2024.
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: 65.5 mm (2.6 in) in 2002; 51.6 mm (2.0 in) in 2024; 50.8 mm (2.0 in) in 1983.
Download the Data
Data for Carter 14 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Carter 14 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.