Record envelope, standing records and threshold days for Mission (USC00395620), South Dakota, United States, with 48 years of record.
Key Facts for Mission
Mission (USC00395620) is a weather station in South Dakota, United States at 43.31 latitude and -100.66 longitude, 789 m (2,587 ft) above sea level.
The station reports from 1966 to 2013, 48 years of record.
1,464 records set at Mission still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mission set a monthly record high minimum temperature of 23.3 C (73.9 F) on 2 September 2012.
About the Station
Location: South Dakota, United States, 43.31 latitude, -100.66 longitude.
Elevation: 789 m (2,587 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 Mission. 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 Mission, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.9 C (75.0 F)
-33.3 C (-27.9 F)
n/a
n/a
Feb
23.3 C (73.9 F)
-34.4 C (-29.9 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-32.8 C (-27.0 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-14.4 C (6.1 F)
n/a
n/a
May
36.7 C (98.1 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
41.7 C (107.1 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
43.9 C (111.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
42.2 C (108.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
40.0 C (104.0 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-17.2 C (1.0 F)
n/a
n/a
Nov
29.4 C (84.9 F)
-26.7 C (-16.1 F)
n/a
n/a
Dec
21.7 C (71.1 F)
-35.6 C (-32.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mission still stand. 1989 holds the most, with 55.
Standing records at Mission by the year they were set
Year set
Standing records
1966
23
1967
35
1968
36
1969
38
1970
33
1971
24
1972
47
1973
21
1974
45
1975
28
1976
42
1977
24
1978
21
1979
30
1980
29
1981
27
1982
25
1983
32
1984
18
1985
52
1986
27
1987
35
1988
41
1989
55
1990
30
1991
42
1992
38
1993
33
1994
24
1995
42
1996
38
1997
38
1998
32
1999
21
2000
32
2001
21
2002
42
2003
28
2004
12
2005
35
2006
34
2007
24
2008
13
2009
28
2010
16
2011
19
2012
34
All-Time Record Progression
4 new records
4 all-time records were set at Mission between 31 July 2001 and 27 December 2009. Each dot is a new record.
When Mission set new all-time records
Date
Kind
Detail
2001-07-31
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
2006-07-16
Record high minimum temperature
Record high minimum temperature 26.1 C (79.0 F)
2006-07-17
Record high maximum temperature
Record high maximum temperature 43.9 C (111.0 F)
2009-12-27
Record snow depth
Record snow depth 61.0 cm (24.0 in)
Wettest Day of Each Month
May: 87.1 mm (3.4 in)
The wettest day on record for each calendar month at Mission. The most was 87.1 mm (3.4 in) on 16 May 1991.
Record daily precipitation for each month at Mission
Month
Record daily precipitation (mm)
Date
Jan
19.3 mm (0.8 in)
7 January 2010
Feb
27.4 mm (1.1 in)
29 February 2012
Mar
31.0 mm (1.2 in)
28 March 1977
Apr
84.8 mm (3.3 in)
20 April 1971
May
87.1 mm (3.4 in)
16 May 1991
Jun
72.4 mm (2.9 in)
16 June 1979
Jul
58.2 mm (2.3 in)
8 July 1990
Aug
49.0 mm (1.9 in)
10 August 1994
Sep
71.9 mm (2.8 in)
21 September 1989
Oct
70.4 mm (2.8 in)
1 October 2004
Nov
31.2 mm (1.2 in)
24 November 2001
Dec
16.5 mm (0.6 in)
6 December 1976
Period of Record Coverage
1966 to 2012
Complete yearUnder 90 percent of days
47 years of record at Mission, 1966 to 2012. 4 years have data for under 90 percent of days and are left out of rankings: 1966, 1977, 1978, 2012.
Cooler than the station meanWarmer than the station mean
One stripe for each of 42 complete years at Mission, 1967 to 2011. Blue stripes are years cooler than the station's own mean of 8.1 C (46.7 F); red stripes are warmer. The coolest year was 1996, at 6.2 C (43.2 F), and the warmest was 1987, at 9.4 C (49.0 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Mission as warming stripes, 1967 to 2011
Year
Annual mean temperature
Difference from the station mean
1967
7.4 C
-0.71 C
1968
7.4 C
-0.79 C
1969
7.5 C
-0.61 C
1970
7.7 C
-0.49 C
1971
7.7 C
-0.41 C
1972
7.1 C
-1.05 C
1973
8.8 C
+0.63 C
1974
8.8 C
+0.60 C
1975
7.4 C
-0.75 C
1976
8.5 C
+0.34 C
1980
8.3 C
+0.16 C
1981
8.9 C
+0.75 C
1982
6.6 C
-1.60 C
1983
7.6 C
-0.60 C
1984
8.0 C
-0.18 C
1985
6.9 C
-1.28 C
1986
8.4 C
+0.22 C
1987
9.4 C
+1.27 C
1988
8.5 C
+0.33 C
1989
7.7 C
-0.50 C
1990
8.9 C
+0.73 C
1991
9.0 C
+0.80 C
1992
8.2 C
+0.05 C
1993
6.4 C
-1.74 C
1994
8.1 C
-0.07 C
1995
7.9 C
-0.26 C
1996
6.2 C
-1.93 C
1997
8.1 C
-0.08 C
1998
9.0 C
+0.89 C
1999
9.4 C
+1.26 C
2000
8.3 C
+0.18 C
2001
9.0 C
+0.88 C
2002
8.6 C
+0.43 C
2003
8.7 C
+0.52 C
2004
9.0 C
+0.85 C
2005
9.2 C
+1.06 C
2006
9.4 C
+1.20 C
2007
9.2 C
+1.07 C
2008
7.6 C
-0.59 C
2009
7.5 C
-0.68 C
2010
8.4 C
+0.24 C
2011
8.0 C
-0.16 C
The annual mean temperature here has risen by 0.21 C (0.01 to 0.40) per decade over 1967 to 2011. In Fahrenheit: 0.37 F (0.03 to 0.71) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Mission
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.21 C (0.01 to 0.40) per decade
0.37 F (0.03 to 0.71) per decade
1967 to 2011
42
Rise
Mean daily maximum
-0.05 C (-0.29 to 0.19) per decade
-0.1 F (-0.5 to 0.3) per decade
1967 to 2011
42
Not clearly different from zero
Mean daily minimum
0.5 C (0.3 to 0.6) per decade
0.8 F (0.5 to 1.2) per decade
1967 to 2011
42
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 Mission: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
2006
39.4 C (102.9 F)
47
Coldest night (TNn)
-35.6 C (-32.1 F)
1983
-28.9 C (-20.0 F)
47
Wettest day (Rx1day)
87.1 mm (3.4 in)
1991
43.6 mm (1.7 in)
48
Wettest five days (Rx5day)
142.0 mm (5.6 in)
2011
74.7 mm (2.9 in)
47
Longest dry spell (CDD)
60 days
2004
31 days
48
Hottest day (TXx)
The hottest day of the year at Mission, 1966 to 2013. The record is 43.9 C (111.0 F) in 2006, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Mission by year
Year
Hottest day (TXx)
1966
43.3 C (109.9 F)
1967
37.8 C (100.0 F)
1968
38.3 C (100.9 F)
1969
38.9 C (102.0 F)
1970
41.7 C (107.1 F)
1971
40.0 C (104.0 F)
1972
37.2 C (99.0 F)
1973
41.7 C (107.1 F)
1974
41.1 C (106.0 F)
1975
38.9 C (102.0 F)
1976
40.0 C (104.0 F)
1977
40.6 C (105.1 F)
1978
38.9 C (102.0 F)
1979
38.9 C (102.0 F)
1980
42.8 C (109.0 F)
1981
38.9 C (102.0 F)
1982
38.9 C (102.0 F)
1983
40.0 C (104.0 F)
1984
37.8 C (100.0 F)
1985
40.0 C (104.0 F)
1986
38.3 C (100.9 F)
1987
39.4 C (102.9 F)
1988
41.7 C (107.1 F)
1989
41.7 C (107.1 F)
1990
41.1 C (106.0 F)
1991
40.0 C (104.0 F)
1992
35.0 C (95.0 F)
1993
36.1 C (97.0 F)
1994
36.1 C (97.0 F)
1995
39.4 C (102.9 F)
1996
37.8 C (100.0 F)
1997
37.8 C (100.0 F)
1998
40.0 C (104.0 F)
1999
37.2 C (99.0 F)
2000
37.2 C (99.0 F)
2001
38.9 C (102.0 F)
2002
41.1 C (106.0 F)
2003
42.8 C (109.0 F)
2004
37.8 C (100.0 F)
2005
40.6 C (105.1 F)
2006
43.9 C (111.0 F)
2007
39.4 C (102.9 F)
2008
37.8 C (100.0 F)
2009
37.8 C (100.0 F)
2010
40.0 C (104.0 F)
2011
37.2 C (99.0 F)
2012
41.7 C (107.1 F)
2013
n/a
Coldest night (TNn)
The coldest night of the year at Mission, 1966 to 2013. The record is -35.6 C (-32.1 F) in 1983, marked on the chart; the median year is -28.9 C (-20.0 F).
Coldest night (TNn) at Mission by year
Year
Coldest night (TNn)
1966
-23.3 C (-9.9 F)
1967
-33.3 C (-27.9 F)
1968
-31.1 C (-24.0 F)
1969
-28.9 C (-20.0 F)
1970
-30.6 C (-23.1 F)
1971
-28.9 C (-20.0 F)
1972
-32.2 C (-26.0 F)
1973
-29.4 C (-20.9 F)
1974
-30.0 C (-22.0 F)
1975
-30.0 C (-22.0 F)
1976
-29.4 C (-20.9 F)
1977
-31.7 C (-25.1 F)
1978
-30.0 C (-22.0 F)
1979
-31.1 C (-24.0 F)
1980
-30.0 C (-22.0 F)
1981
-28.9 C (-20.0 F)
1982
-33.3 C (-27.9 F)
1983
-35.6 C (-32.1 F)
1984
-28.9 C (-20.0 F)
1985
-30.0 C (-22.0 F)
1986
-24.4 C (-11.9 F)
1987
-19.4 C (-2.9 F)
1988
-33.3 C (-27.9 F)
1989
-34.4 C (-29.9 F)
1990
-33.9 C (-29.0 F)
1991
-25.0 C (-13.0 F)
1992
-25.0 C (-13.0 F)
1993
-28.3 C (-18.9 F)
1994
-34.4 C (-29.9 F)
1995
-25.6 C (-14.1 F)
1996
-33.9 C (-29.0 F)
1997
-26.1 C (-15.0 F)
1998
-32.8 C (-27.0 F)
1999
-28.3 C (-18.9 F)
2000
-28.3 C (-18.9 F)
2001
-23.3 C (-9.9 F)
2002
-22.8 C (-9.0 F)
2003
-28.9 C (-20.0 F)
2004
-25.6 C (-14.1 F)
2005
-26.7 C (-16.1 F)
2006
-30.0 C (-22.0 F)
2007
-29.4 C (-20.9 F)
2008
-26.1 C (-15.0 F)
2009
-26.7 C (-16.1 F)
2010
-28.3 C (-18.9 F)
2011
-26.1 C (-15.0 F)
2012
-23.3 C (-9.9 F)
2013
n/a
Wettest day (Rx1day)
The wettest day of the year at Mission, 1966 to 2013. The record is 87.1 mm (3.4 in) in 1991, marked on the chart; the median year is 43.6 mm (1.7 in).
Wettest day (Rx1day) at Mission by year
Year
Wettest day (Rx1day)
1966
55.4 mm (2.2 in)
1967
39.9 mm (1.6 in)
1968
53.8 mm (2.1 in)
1969
27.7 mm (1.1 in)
1970
37.1 mm (1.5 in)
1971
84.8 mm (3.3 in)
1972
38.1 mm (1.5 in)
1973
58.4 mm (2.3 in)
1974
30.5 mm (1.2 in)
1975
31.0 mm (1.2 in)
1976
39.9 mm (1.6 in)
1977
59.7 mm (2.4 in)
1978
25.4 mm (1.0 in)
1979
72.4 mm (2.9 in)
1980
41.7 mm (1.6 in)
1981
50.0 mm (2.0 in)
1982
62.2 mm (2.4 in)
1983
43.9 mm (1.7 in)
1984
39.4 mm (1.6 in)
1985
38.6 mm (1.5 in)
1986
32.0 mm (1.3 in)
1987
36.6 mm (1.4 in)
1988
44.5 mm (1.8 in)
1989
71.9 mm (2.8 in)
1990
58.2 mm (2.3 in)
1991
87.1 mm (3.4 in)
1992
58.4 mm (2.3 in)
1993
30.2 mm (1.2 in)
1994
49.0 mm (1.9 in)
1995
59.9 mm (2.4 in)
1996
43.2 mm (1.7 in)
1997
38.1 mm (1.5 in)
1998
50.5 mm (2.0 in)
1999
51.1 mm (2.0 in)
2000
61.2 mm (2.4 in)
2001
35.8 mm (1.4 in)
2002
25.7 mm (1.0 in)
2003
46.7 mm (1.8 in)
2004
70.4 mm (2.8 in)
2005
67.8 mm (2.7 in)
2006
37.1 mm (1.5 in)
2007
40.9 mm (1.6 in)
2008
48.5 mm (1.9 in)
2009
39.4 mm (1.6 in)
2010
35.1 mm (1.4 in)
2011
67.6 mm (2.7 in)
2012
38.4 mm (1.5 in)
2013
0.0 mm (0.00 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mission, 1966 to 2013. The record is 142.0 mm (5.6 in) in 2011, marked on the chart; the median year is 74.7 mm (2.9 in).
Wettest five days (Rx5day) at Mission by year
Year
Wettest five days (Rx5day)
1966
75.7 mm (3.0 in)
1967
74.7 mm (2.9 in)
1968
116.5 mm (4.6 in)
1969
45.8 mm (1.8 in)
1970
47.3 mm (1.9 in)
1971
93.2 mm (3.7 in)
1972
82.1 mm (3.2 in)
1973
104.1 mm (4.1 in)
1974
37.4 mm (1.5 in)
1975
39.4 mm (1.6 in)
1976
49.6 mm (2.0 in)
1977
92.2 mm (3.6 in)
1978
55.4 mm (2.2 in)
1979
102.4 mm (4.0 in)
1980
53.4 mm (2.1 in)
1981
56.1 mm (2.2 in)
1982
95.5 mm (3.8 in)
1983
92.2 mm (3.6 in)
1984
43.0 mm (1.7 in)
1985
41.0 mm (1.6 in)
1986
61.3 mm (2.4 in)
1987
62.7 mm (2.5 in)
1988
70.5 mm (2.8 in)
1989
81.3 mm (3.2 in)
1990
112.1 mm (4.4 in)
1991
115.6 mm (4.6 in)
1992
97.0 mm (3.8 in)
1993
48.3 mm (1.9 in)
1994
66.1 mm (2.6 in)
1995
98.1 mm (3.9 in)
1996
81.3 mm (3.2 in)
1997
79.5 mm (3.1 in)
1998
90.9 mm (3.6 in)
1999
94.4 mm (3.7 in)
2000
91.9 mm (3.6 in)
2001
53.6 mm (2.1 in)
2002
70.4 mm (2.8 in)
2003
57.7 mm (2.3 in)
2004
70.4 mm (2.8 in)
2005
96.5 mm (3.8 in)
2006
61.2 mm (2.4 in)
2007
80.6 mm (3.2 in)
2008
117.8 mm (4.6 in)
2009
73.4 mm (2.9 in)
2010
63.3 mm (2.5 in)
2011
142.0 mm (5.6 in)
2012
60.7 mm (2.4 in)
2013
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Mission, 1966 to 2013. The record is 60 days in 2004, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Mission by year
Year
Longest dry spell (CDD)
1966
24 days
1967
46 days
1968
28 days
1969
24 days
1970
42 days
1971
29 days
1972
49 days
1973
27 days
1974
49 days
1975
31 days
1976
32 days
1977
26 days
1978
47 days
1979
55 days
1980
23 days
1981
40 days
1982
36 days
1983
37 days
1984
30 days
1985
30 days
1986
30 days
1987
33 days
1988
32 days
1989
32 days
1990
38 days
1991
31 days
1992
33 days
1993
18 days
1994
33 days
1995
29 days
1996
32 days
1997
41 days
1998
39 days
1999
50 days
2000
20 days
2001
31 days
2002
27 days
2003
22 days
2004
60 days
2005
31 days
2006
34 days
2007
41 days
2008
17 days
2009
24 days
2010
19 days
2011
19 days
2012
23 days
2013
1 day
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
42 years with a frost
Across 42 years with a frost, the median last spring frost at Mission falls on 13 May and the median first autumn frost on 25 September, which leaves a median of 137 days between them.
Fitted over all years, the growing season changes by +5.8 days per decade at this station.
Frost dates and growing season at Mission
Measure
Median, all years
Earliest period
Recent period (1982 to 2011)
Recent against earliest
Fitted trend
Last spring frost
13 May
n/a
9 May
n/a
-3.8 days per decade
First autumn frost
25 September
n/a
27 September
n/a
+2.1 days per decade
Growing days
137 days
n/a
142 days
n/a
+5.8 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
45 years, 1967 to 2011
A day with at least 45.4 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 98.2 mm (3.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Mission: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
45.4 mm (1.8 in)
5 years
59.5 mm (2.3 in)
10 years
68.9 mm (2.7 in)
25 years
80.7 mm (3.2 in)
50 years
89.5 mm (3.5 in)
Longer than the 45 years of record
100 years
98.2 mm (3.9 in)
Longer than the 45 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, 45 years of values from 1967 to 2011.
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: 87.1 mm (3.4 in) in 1991; 84.8 mm (3.3 in) in 1971; 72.4 mm (2.9 in) in 1979.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Mission standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mission 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.