Record envelope, standing records and threshold days for Missoula 2 NE (USC00245735), Montana, United States, with 48 years of record.
Key Facts for Missoula 2 NE
Missoula 2 NE (USC00245735) is a weather station in Montana, United States at 46.90 latitude and -113.97 longitude, 1,042 m (3,420 ft) above sea level.
The station reports from 1966 to 2013, 48 years of record.
1,464 records set at Missoula 2 NE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Missoula 2 NE set a daily record high minimum temperature of 16.7 C (62.1 F) on 28 August 2013.
About the Station
Location: Montana, United States, 46.90 latitude, -113.97 longitude.
Elevation: 1,042 m (3,420 ft).
Period of record: 1966 to 2013, 48 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 Missoula 2 NE. 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 Missoula 2 NE, 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)
-32.8 C (-27.0 F)
n/a
n/a
Feb
18.3 C (64.9 F)
-30.6 C (-23.1 F)
n/a
n/a
Mar
26.1 C (79.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Apr
30.6 C (87.1 F)
-8.9 C (16.0 F)
n/a
n/a
May
33.9 C (93.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-0.6 C (30.9 F)
n/a
n/a
Sep
36.1 C (97.0 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-16.7 C (1.9 F)
n/a
n/a
Nov
22.8 C (73.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Missoula 2 NE still stand. 1972 holds the most, with 56.
Standing records at Missoula 2 NE by the year they were set
Year set
Standing records
1966
4
1967
34
1968
20
1969
50
1970
26
1971
42
1972
56
1973
30
1974
37
1975
42
1976
27
1977
27
1978
28
1979
26
1980
43
1981
18
1982
28
1983
39
1984
39
1985
41
1986
43
1987
37
1988
38
1989
32
1990
38
1991
17
1992
31
1993
38
1994
31
1995
34
1996
39
1997
24
1998
28
1999
26
2000
13
2001
25
2002
48
2003
42
2004
22
2005
18
2006
25
2007
23
2008
32
2009
17
2010
24
2011
22
2012
28
2013
12
All-Time Record Progression
2 new records
2 all-time records were set at Missoula 2 NE between 13 July 2002 and 6 April 2006. Each dot is a new record.
When Missoula 2 NE set new all-time records
Date
Kind
Detail
2002-07-13
Record high maximum temperature
Record high maximum temperature 40.6 C (105.1 F)
2006-04-06
Record daily precipitation
Record daily precipitation 62.5 mm (2.5 in)
Wettest Day of Each Month
Apr: 62.5 mm (2.5 in)
The wettest day on record for each calendar month at Missoula 2 NE. The most was 62.5 mm (2.5 in) on 6 April 2006.
Record daily precipitation for each month at Missoula 2 NE
Month
Record daily precipitation (mm)
Date
Jan
27.4 mm (1.1 in)
24 January 1982
Feb
27.4 mm (1.1 in)
7 February 1975
Mar
25.4 mm (1.0 in)
18 March 1972
Apr
62.5 mm (2.5 in)
6 April 2006
May
50.3 mm (2.0 in)
25 May 1980
Jun
54.6 mm (2.1 in)
20 June 1974
Jul
33.0 mm (1.3 in)
10 July 1983
Aug
54.1 mm (2.1 in)
7 August 2009
Sep
34.0 mm (1.3 in)
23 September 2007
Oct
35.6 mm (1.4 in)
1 October 2000
Nov
23.9 mm (0.9 in)
12 November 2008
Dec
17.8 mm (0.7 in)
29 December 1996
Period of Record Coverage
1966 to 2013
Complete yearUnder 90 percent of days
48 years of record at Missoula 2 NE, 1966 to 2013. 2 years have data for under 90 percent of days and are left out of rankings: 1966, 2013.
Cooler than the station meanWarmer than the station mean
One stripe for each of 45 complete years at Missoula 2 NE, 1967 to 2012. Blue stripes are years cooler than the station's own mean of 7.4 C (45.4 F); red stripes are warmer. The coolest year was 1985, at 5.7 C (42.2 F), and the warmest was 1998, at 8.8 C (47.8 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Missoula 2 NE as warming stripes, 1967 to 2012
Year
Annual mean temperature
Difference from the station mean
1967
8.0 C
+0.56 C
1968
7.1 C
-0.37 C
1969
7.2 C
-0.25 C
1970
7.2 C
-0.24 C
1971
6.9 C
-0.53 C
1972
6.5 C
-0.98 C
1973
7.5 C
+0.05 C
1974
7.5 C
+0.07 C
1975
6.2 C
-1.20 C
1976
7.2 C
-0.27 C
1977
7.1 C
-0.31 C
1978
6.4 C
-1.04 C
1979
6.8 C
-0.68 C
1980
7.0 C
-0.42 C
1981
7.7 C
+0.27 C
1982
6.3 C
-1.14 C
1983
7.1 C
-0.35 C
1984
6.9 C
-0.58 C
1985
5.7 C
-1.75 C
1986
7.6 C
+0.17 C
1987
8.1 C
+0.62 C
1988
8.2 C
+0.75 C
1989
7.0 C
-0.46 C
1990
7.5 C
+0.07 C
1991
7.4 C
-0.06 C
1992
8.2 C
+0.71 C
1993
6.1 C
-1.37 C
1994
8.5 C
+1.01 C
1995
7.4 C
-0.09 C
1997
7.3 C
-0.19 C
1998
8.8 C
+1.33 C
1999
8.2 C
+0.78 C
2000
7.7 C
+0.25 C
2001
8.1 C
+0.63 C
2002
7.3 C
-0.17 C
2003
8.5 C
+1.09 C
2004
8.2 C
+0.74 C
2005
7.5 C
+0.06 C
2006
8.5 C
+1.04 C
2007
8.6 C
+1.11 C
2008
7.1 C
-0.32 C
2009
7.5 C
+0.02 C
2010
7.7 C
+0.28 C
2011
7.4 C
-0.04 C
2012
8.7 C
+1.27 C
The annual mean temperature here has risen by 0.3 C (0.1 to 0.4) per decade over 1967 to 2012. In Fahrenheit: 0.5 F (0.2 to 0.7) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Missoula 2 NE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.1 to 0.4) per decade
0.5 F (0.2 to 0.7) per decade
1967 to 2012
45
Rise
Mean daily maximum
0.2 C (0.1 to 0.4) per decade
0.4 F (0.1 to 0.8) per decade
1967 to 2012
45
Rise
Mean daily minimum
0.3 C (0.2 to 0.4) per decade
0.5 F (0.3 to 0.7) per decade
1967 to 2012
45
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
1966 to 2013
Yearly extremes at Missoula 2 NE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
2002
36.4 C (97.5 F)
48
Coldest night (TNn)
-34.4 C (-29.9 F)
1983
-23.6 C (-10.5 F)
48
Wettest day (Rx1day)
62.5 mm (2.5 in)
2006
27.2 mm (1.1 in)
48
Wettest five days (Rx5day)
110.0 mm (4.3 in)
1969
44.7 mm (1.8 in)
48
Longest dry spell (CDD)
77 days
1969
25 days
48
Hottest day (TXx)
The hottest day of the year at Missoula 2 NE, 1966 to 2013. The record is 40.6 C (105.1 F) in 2002, marked on the chart; the median year is 36.4 C (97.5 F).
Hottest day (TXx) at Missoula 2 NE by year
Year
Hottest day (TXx)
1966
20.6 C (69.1 F)
1967
36.7 C (98.1 F)
1968
35.6 C (96.1 F)
1969
38.9 C (102.0 F)
1970
36.1 C (97.0 F)
1971
36.1 C (97.0 F)
1972
36.1 C (97.0 F)
1973
40.0 C (104.0 F)
1974
36.1 C (97.0 F)
1975
37.2 C (99.0 F)
1976
35.0 C (95.0 F)
1977
35.0 C (95.0 F)
1978
35.0 C (95.0 F)
1979
35.6 C (96.1 F)
1980
35.0 C (95.0 F)
1981
36.7 C (98.1 F)
1982
34.4 C (93.9 F)
1983
36.7 C (98.1 F)
1984
36.1 C (97.0 F)
1985
37.8 C (100.0 F)
1986
35.0 C (95.0 F)
1987
35.6 C (96.1 F)
1988
36.1 C (97.0 F)
1989
36.7 C (98.1 F)
1990
36.7 C (98.1 F)
1991
37.2 C (99.0 F)
1992
36.1 C (97.0 F)
1993
32.8 C (91.0 F)
1994
37.8 C (100.0 F)
1995
33.9 C (93.0 F)
1996
35.6 C (96.1 F)
1997
35.6 C (96.1 F)
1998
37.2 C (99.0 F)
1999
36.7 C (98.1 F)
2000
38.9 C (102.0 F)
2001
36.7 C (98.1 F)
2002
40.6 C (105.1 F)
2003
40.0 C (104.0 F)
2004
38.9 C (102.0 F)
2005
36.1 C (97.0 F)
2006
38.3 C (100.9 F)
2007
39.4 C (102.9 F)
2008
37.2 C (99.0 F)
2009
37.2 C (99.0 F)
2010
35.0 C (95.0 F)
2011
36.1 C (97.0 F)
2012
37.8 C (100.0 F)
2013
37.8 C (100.0 F)
Coldest night (TNn)
The coldest night of the year at Missoula 2 NE, 1966 to 2013. The record is -34.4 C (-29.9 F) in 1983, marked on the chart; the median year is -23.6 C (-10.5 F).
Coldest night (TNn) at Missoula 2 NE by year
Year
Coldest night (TNn)
1966
-10.6 C (12.9 F)
1967
-19.4 C (-2.9 F)
1968
-32.2 C (-26.0 F)
1969
-25.6 C (-14.1 F)
1970
-23.3 C (-9.9 F)
1971
-22.2 C (-8.0 F)
1972
-30.0 C (-22.0 F)
1973
-25.0 C (-13.0 F)
1974
-26.7 C (-16.1 F)
1975
-21.7 C (-7.1 F)
1976
-20.0 C (-4.0 F)
1977
-20.6 C (-5.1 F)
1978
-31.1 C (-24.0 F)
1979
-32.8 C (-27.0 F)
1980
-25.0 C (-13.0 F)
1981
-27.8 C (-18.0 F)
1982
-28.3 C (-18.9 F)
1983
-34.4 C (-29.9 F)
1984
-25.6 C (-14.1 F)
1985
-28.3 C (-18.9 F)
1986
-21.1 C (-6.0 F)
1987
-21.7 C (-7.1 F)
1988
-20.6 C (-5.1 F)
1989
-30.6 C (-23.1 F)
1990
-33.3 C (-27.9 F)
1991
-26.7 C (-16.1 F)
1992
-20.6 C (-5.1 F)
1993
-26.7 C (-16.1 F)
1994
-23.3 C (-9.9 F)
1995
-20.0 C (-4.0 F)
1996
-28.9 C (-20.0 F)
1997
-24.4 C (-11.9 F)
1998
-30.0 C (-22.0 F)
1999
-15.0 C (5.0 F)
2000
-19.4 C (-2.9 F)
2001
-15.0 C (5.0 F)
2002
-18.9 C (-2.0 F)
2003
-21.7 C (-7.1 F)
2004
-28.3 C (-18.9 F)
2005
-23.9 C (-11.0 F)
2006
-23.9 C (-11.0 F)
2007
-21.1 C (-6.0 F)
2008
-24.4 C (-11.9 F)
2009
-23.3 C (-9.9 F)
2010
-22.2 C (-8.0 F)
2011
-21.7 C (-7.1 F)
2012
-13.3 C (8.1 F)
2013
-16.7 C (1.9 F)
Wettest day (Rx1day)
The wettest day of the year at Missoula 2 NE, 1966 to 2013. The record is 62.5 mm (2.5 in) in 2006, marked on the chart; the median year is 27.2 mm (1.1 in).
Wettest day (Rx1day) at Missoula 2 NE by year
Year
Wettest day (Rx1day)
1966
7.1 mm (0.28 in)
1967
22.6 mm (0.9 in)
1968
34.3 mm (1.4 in)
1969
35.3 mm (1.4 in)
1970
29.0 mm (1.1 in)
1971
20.1 mm (0.8 in)
1972
28.4 mm (1.1 in)
1973
31.2 mm (1.2 in)
1974
54.6 mm (2.1 in)
1975
29.5 mm (1.2 in)
1976
25.7 mm (1.0 in)
1977
20.1 mm (0.8 in)
1978
21.8 mm (0.9 in)
1979
18.5 mm (0.7 in)
1980
50.3 mm (2.0 in)
1981
39.6 mm (1.6 in)
1982
27.4 mm (1.1 in)
1983
33.0 mm (1.3 in)
1984
25.9 mm (1.0 in)
1985
28.4 mm (1.1 in)
1986
25.1 mm (1.0 in)
1987
17.3 mm (0.7 in)
1988
32.3 mm (1.3 in)
1989
14.5 mm (0.6 in)
1990
26.9 mm (1.1 in)
1991
28.7 mm (1.1 in)
1992
22.6 mm (0.9 in)
1993
25.9 mm (1.0 in)
1994
28.4 mm (1.1 in)
1995
24.6 mm (1.0 in)
1996
17.8 mm (0.7 in)
1997
30.7 mm (1.2 in)
1998
30.0 mm (1.2 in)
1999
24.4 mm (1.0 in)
2000
35.6 mm (1.4 in)
2001
47.5 mm (1.9 in)
2002
24.9 mm (1.0 in)
2003
18.8 mm (0.7 in)
2004
25.4 mm (1.0 in)
2005
22.4 mm (0.9 in)
2006
62.5 mm (2.5 in)
2007
34.0 mm (1.3 in)
2008
29.7 mm (1.2 in)
2009
54.1 mm (2.1 in)
2010
19.6 mm (0.8 in)
2011
30.0 mm (1.2 in)
2012
20.1 mm (0.8 in)
2013
16.5 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Missoula 2 NE, 1966 to 2013. The record is 110.0 mm (4.3 in) in 1969, marked on the chart; the median year is 44.7 mm (1.8 in).
Wettest five days (Rx5day) at Missoula 2 NE by year
Year
Wettest five days (Rx5day)
1966
12.7 mm (0.5 in)
1967
33.3 mm (1.3 in)
1968
58.4 mm (2.3 in)
1969
110.0 mm (4.3 in)
1970
51.6 mm (2.0 in)
1971
45.3 mm (1.8 in)
1972
30.0 mm (1.2 in)
1973
38.9 mm (1.5 in)
1974
57.6 mm (2.3 in)
1975
42.7 mm (1.7 in)
1976
28.0 mm (1.1 in)
1977
30.4 mm (1.2 in)
1978
31.5 mm (1.2 in)
1979
20.3 mm (0.8 in)
1980
108.5 mm (4.3 in)
1981
48.7 mm (1.9 in)
1982
67.6 mm (2.7 in)
1983
56.6 mm (2.2 in)
1984
39.1 mm (1.5 in)
1985
55.6 mm (2.2 in)
1986
44.0 mm (1.7 in)
1987
34.0 mm (1.3 in)
1988
45.0 mm (1.8 in)
1989
32.0 mm (1.3 in)
1990
44.4 mm (1.7 in)
1991
42.9 mm (1.7 in)
1992
51.1 mm (2.0 in)
1993
37.1 mm (1.5 in)
1994
56.2 mm (2.2 in)
1995
40.9 mm (1.6 in)
1996
55.2 mm (2.2 in)
1997
39.6 mm (1.6 in)
1998
49.8 mm (2.0 in)
1999
51.3 mm (2.0 in)
2000
43.0 mm (1.7 in)
2001
72.2 mm (2.8 in)
2002
46.0 mm (1.8 in)
2003
37.3 mm (1.5 in)
2004
47.9 mm (1.9 in)
2005
68.6 mm (2.7 in)
2006
73.7 mm (2.9 in)
2007
44.4 mm (1.7 in)
2008
48.5 mm (1.9 in)
2009
77.5 mm (3.1 in)
2010
50.9 mm (2.0 in)
2011
43.9 mm (1.7 in)
2012
39.8 mm (1.6 in)
2013
21.1 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Missoula 2 NE, 1966 to 2013. The record is 77 days in 1969, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Missoula 2 NE by year
Year
Longest dry spell (CDD)
1966
12 days
1967
41 days
1968
18 days
1969
77 days
1970
29 days
1971
23 days
1972
19 days
1973
32 days
1974
16 days
1975
15 days
1976
27 days
1977
39 days
1978
30 days
1979
42 days
1980
28 days
1981
23 days
1982
19 days
1983
28 days
1984
35 days
1985
54 days
1986
22 days
1987
46 days
1988
34 days
1989
20 days
1990
25 days
1991
31 days
1992
27 days
1993
17 days
1994
22 days
1995
20 days
1996
31 days
1997
15 days
1998
17 days
1999
23 days
2000
25 days
2001
35 days
2002
28 days
2003
24 days
2004
20 days
2005
17 days
2006
32 days
2007
32 days
2008
19 days
2009
21 days
2010
27 days
2011
23 days
2012
42 days
2013
19 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
45 years with a frost
Across 45 years with a frost, the median last spring frost at Missoula 2 NE falls on 20 May and the median first autumn frost on 21 September, which leaves a median of 125 days between them.
Fitted over all years, the growing season changes by +8.5 days per decade at this station.
Frost dates and growing season at Missoula 2 NE
Measure
Median, all years
Earliest period
Recent period (1982 to 2012)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
17 May
n/a
-2.2 days per decade
First autumn frost
21 September
n/a
26 September
n/a
+6.3 days per decade
Growing days
125 days
n/a
133 days
n/a
+8.5 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, 1967 to 2012
A day with at least 26.9 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 67.9 mm (2.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Missoula 2 NE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
26.9 mm (1.1 in)
5 years
35.5 mm (1.4 in)
10 years
42.1 mm (1.7 in)
25 years
51.4 mm (2.0 in)
50 years
59.3 mm (2.3 in)
Longer than the 46 years of record
100 years
67.9 mm (2.7 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 1967 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: 62.5 mm (2.5 in) in 2006; 54.6 mm (2.1 in) in 1974; 54.1 mm (2.1 in) in 2009.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Missoula 2 NE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Missoula 2 NE 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.