Record envelope, standing records and threshold days for Wilsall 8 ENE (USC00249023), Montana, United States, with 62 years of record.
Key Facts for Wilsall 8 ENE
Wilsall 8 ENE (USC00249023) is a weather station in Montana, United States at 46.03 latitude and -110.51 longitude, 1,788 m (5,865 ft) above sea level.
The station reports from 1957 to 2018, 62 years of record.
1,464 records set at Wilsall 8 ENE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Wilsall 8 ENE set a daily record low minimum temperature of -1.1 C (30.0 F) on 15 June 2017.
About the Station
Location: Montana, United States, 46.03 latitude, -110.51 longitude.
Elevation: 1,788 m (5,865 ft).
Period of record: 1957 to 2018, 62 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 Wilsall 8 ENE. 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 Wilsall 8 ENE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.1 C (61.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-41.1 C (-42.0 F)
n/a
n/a
Mar
21.1 C (70.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Apr
26.1 C (79.0 F)
-25.0 C (-13.0 F)
n/a
n/a
May
28.3 C (82.9 F)
-10.6 C (12.9 F)
n/a
n/a
Jun
33.3 C (91.9 F)
-6.1 C (21.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
35.6 C (96.1 F)
-3.3 C (26.1 F)
n/a
n/a
Sep
33.3 C (91.9 F)
-12.2 C (10.0 F)
n/a
n/a
Oct
28.3 C (82.9 F)
-23.9 C (-11.0 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-35.0 C (-31.0 F)
n/a
n/a
Dec
15.0 C (59.0 F)
-40.6 C (-41.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Wilsall 8 ENE still stand. 1985 holds the most, with 45.
Standing records at Wilsall 8 ENE by the year they were set
Year set
Standing records
1957
11
1958
27
1959
27
1960
34
1961
31
1962
37
1963
28
1964
25
1965
31
1966
33
1967
23
1968
18
1969
40
1970
16
1971
15
1972
35
1973
25
1974
24
1975
32
1976
12
1977
13
1978
22
1979
12
1980
34
1981
28
1982
9
1983
33
1984
35
1985
45
1986
27
1987
37
1988
35
1989
30
1990
29
1991
23
1992
34
1993
22
1994
18
1995
28
1996
41
1997
24
1998
20
1999
28
2000
21
2001
9
2002
27
2003
25
2004
11
2005
26
2006
11
2007
16
2008
18
2009
24
2010
15
2011
12
2012
19
2013
17
2014
24
2015
20
2016
12
2017
6
All-Time Record Progression
7 new records
7 all-time records were set at Wilsall 8 ENE between 3 February 1989 and 30 July 2000. Each dot is a new record.
When Wilsall 8 ENE set new all-time records
Date
Kind
Detail
1989-02-03
Record low maximum temperature
Record low maximum temperature -30.0 C (-22.0 F)
1989-02-03
Record low minimum temperature
Record low minimum temperature -41.1 C (-42.0 F)
1989-03-01
Record snow depth
Record snow depth 86.4 cm (34.0 in)
1989-03-02
Record snow depth
Record snow depth 106.7 cm (42.0 in)
1990-08-15
Record high minimum temperature
Record high minimum temperature 17.8 C (64.0 F)
1996-06-29
Record high minimum temperature
Record high minimum temperature 18.9 C (66.0 F)
2000-07-30
Record high maximum temperature
Record high maximum temperature 37.2 C (99.0 F)
Wettest Day of Each Month
Jun: 71.6 mm (2.8 in)
The wettest day on record for each calendar month at Wilsall 8 ENE. The most was 71.6 mm (2.8 in) on 25 June 1969.
Record daily precipitation for each month at Wilsall 8 ENE
Month
Record daily precipitation (mm)
Date
Jan
22.4 mm (0.9 in)
10 January 1980
Feb
28.7 mm (1.1 in)
28 February 2014
Mar
48.3 mm (1.9 in)
30 March 1980
Apr
40.9 mm (1.6 in)
11 April 1993
May
58.9 mm (2.3 in)
27 May 1987
Jun
71.6 mm (2.8 in)
25 June 1969
Jul
51.1 mm (2.0 in)
3 July 1993
Aug
51.6 mm (2.0 in)
20 August 1974
Sep
60.2 mm (2.4 in)
12 September 1978
Oct
49.5 mm (1.9 in)
4 October 1992
Nov
31.2 mm (1.2 in)
12 November 2009
Dec
17.5 mm (0.7 in)
6 December 1988
Period of Record Coverage
1957 to 2017
Complete yearUnder 90 percent of days
61 years of record at Wilsall 8 ENE, 1957 to 2017. 5 years have data for under 90 percent of days and are left out of rankings: 1957, 2011, 2013, 2014, 2017.
Cooler than the station meanWarmer than the station mean
One stripe for each of 57 complete years at Wilsall 8 ENE, 1958 to 2016. Blue stripes are years cooler than the station's own mean of 5.1 C (41.1 F); red stripes are warmer. The coolest year was 1975, at 3.4 C (38.2 F), and the warmest was 1988, at 6.6 C (43.8 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Wilsall 8 ENE as warming stripes, 1958 to 2016
Year
Annual mean temperature
Difference from the station mean
1958
5.7 C
+0.59 C
1959
4.3 C
-0.76 C
1960
4.7 C
-0.35 C
1962
4.9 C
-0.22 C
1963
5.4 C
+0.29 C
1964
4.3 C
-0.74 C
1965
4.3 C
-0.75 C
1966
5.3 C
+0.27 C
1967
5.0 C
-0.04 C
1968
4.4 C
-0.69 C
1969
4.8 C
-0.23 C
1970
4.7 C
-0.41 C
1971
4.6 C
-0.52 C
1972
4.3 C
-0.73 C
1973
4.7 C
-0.38 C
1974
5.1 C
+0.06 C
1975
3.4 C
-1.63 C
1976
5.6 C
+0.51 C
1977
5.0 C
-0.03 C
1978
4.1 C
-1.00 C
1979
4.8 C
-0.27 C
1980
5.2 C
+0.17 C
1981
6.1 C
+1.06 C
1982
3.9 C
-1.21 C
1983
5.1 C
+0.02 C
1984
4.9 C
-0.17 C
1985
4.1 C
-0.97 C
1986
6.0 C
+0.88 C
1987
6.5 C
+1.47 C
1988
6.6 C
+1.50 C
1989
4.9 C
-0.22 C
1990
5.8 C
+0.69 C
1991
5.9 C
+0.87 C
1992
6.3 C
+1.22 C
1993
4.6 C
-0.52 C
1994
6.1 C
+1.00 C
1995
5.5 C
+0.47 C
1996
4.9 C
-0.16 C
1997
5.4 C
+0.32 C
1998
6.5 C
+1.45 C
1999
6.3 C
+1.18 C
2000
5.5 C
+0.46 C
2001
5.8 C
+0.71 C
2002
4.0 C
-1.04 C
2003
5.4 C
+0.32 C
2004
5.2 C
+0.12 C
2005
5.2 C
+0.08 C
2006
5.4 C
+0.36 C
2007
5.3 C
+0.21 C
2008
4.1 C
-1.01 C
2009
4.1 C
-0.99 C
2010
4.6 C
-0.43 C
2011
4.3 C
-0.78 C
2013
4.5 C
-0.53 C
2014
4.5 C
-0.58 C
2015
5.9 C
+0.86 C
2016
5.5 C
+0.41 C
The fitted trend in annual mean temperature here over 1958 to 2016 is 0.08 C (-0.04 to 0.20) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 57 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Wilsall 8 ENE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.08 C (-0.04 to 0.20) per decade
0.1 F (-0.1 to 0.4) per decade
1958 to 2016
57
Not clearly different from zero
Mean daily maximum
0.02 C (-0.12 to 0.16) per decade
0.03 F (-0.22 to 0.29) per decade
1958 to 2016
57
Not clearly different from zero
Mean daily minimum
0.14 C (0.03 to 0.24) per decade
0.2 F (0.1 to 0.4) per decade
1958 to 2016
57
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
1957 to 2018
Yearly extremes at Wilsall 8 ENE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.2 C (99.0 F)
2000
32.2 C (90.0 F)
61
Coldest night (TNn)
-41.1 C (-42.0 F)
1989
-31.1 C (-24.0 F)
61
Wettest day (Rx1day)
71.6 mm (2.8 in)
1969
31.0 mm (1.2 in)
62
Wettest five days (Rx5day)
130.1 mm (5.1 in)
1979
52.7 mm (2.1 in)
62
Longest dry spell (CDD)
57 days
1971
23 days
62
Hottest day (TXx)
The hottest day of the year at Wilsall 8 ENE, 1957 to 2018. The record is 37.2 C (99.0 F) in 2000, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Wilsall 8 ENE by year
Year
Hottest day (TXx)
1957
33.9 C (93.0 F)
1958
32.2 C (90.0 F)
1959
31.1 C (88.0 F)
1960
33.9 C (93.0 F)
1961
35.6 C (96.1 F)
1962
30.0 C (86.0 F)
1963
32.2 C (90.0 F)
1964
32.8 C (91.0 F)
1965
31.7 C (89.1 F)
1966
32.2 C (90.0 F)
1967
31.7 C (89.1 F)
1968
30.6 C (87.1 F)
1969
33.9 C (93.0 F)
1970
32.2 C (90.0 F)
1971
32.8 C (91.0 F)
1972
31.7 C (89.1 F)
1973
33.3 C (91.9 F)
1974
31.7 C (89.1 F)
1975
32.2 C (90.0 F)
1976
31.7 C (89.1 F)
1977
30.6 C (87.1 F)
1978
31.1 C (88.0 F)
1979
33.3 C (91.9 F)
1980
32.2 C (90.0 F)
1981
32.2 C (90.0 F)
1982
31.1 C (88.0 F)
1983
33.9 C (93.0 F)
1984
32.2 C (90.0 F)
1985
33.3 C (91.9 F)
1986
31.7 C (89.1 F)
1987
31.7 C (89.1 F)
1988
33.9 C (93.0 F)
1989
35.0 C (95.0 F)
1990
34.4 C (93.9 F)
1991
32.8 C (91.0 F)
1992
31.1 C (88.0 F)
1993
30.6 C (87.1 F)
1994
33.3 C (91.9 F)
1995
32.8 C (91.0 F)
1996
34.4 C (93.9 F)
1997
31.1 C (88.0 F)
1998
33.3 C (91.9 F)
1999
33.9 C (93.0 F)
2000
37.2 C (99.0 F)
2001
34.4 C (93.9 F)
2002
34.4 C (93.9 F)
2003
33.9 C (93.0 F)
2004
31.7 C (89.1 F)
2005
32.2 C (90.0 F)
2006
34.4 C (93.9 F)
2007
34.4 C (93.9 F)
2008
32.8 C (91.0 F)
2009
31.1 C (88.0 F)
2010
31.1 C (88.0 F)
2011
32.2 C (90.0 F)
2012
32.8 C (91.0 F)
2013
32.2 C (90.0 F)
2014
30.6 C (87.1 F)
2015
32.2 C (90.0 F)
2016
32.2 C (90.0 F)
2017
31.7 C (89.1 F)
2018
n/a
Coldest night (TNn)
The coldest night of the year at Wilsall 8 ENE, 1957 to 2018. The record is -41.1 C (-42.0 F) in 1989, marked on the chart; the median year is -31.1 C (-24.0 F).
Coldest night (TNn) at Wilsall 8 ENE by year
Year
Coldest night (TNn)
1957
-15.6 C (3.9 F)
1958
-25.0 C (-13.0 F)
1959
-35.0 C (-31.0 F)
1960
-31.1 C (-24.0 F)
1961
-32.2 C (-26.0 F)
1962
-36.7 C (-34.1 F)
1963
-37.2 C (-35.0 F)
1964
-37.2 C (-35.0 F)
1965
-30.6 C (-23.1 F)
1966
-30.6 C (-23.1 F)
1967
-26.7 C (-16.1 F)
1968
-30.6 C (-23.1 F)
1969
-28.3 C (-18.9 F)
1970
-25.6 C (-14.1 F)
1971
-29.4 C (-20.9 F)
1972
-36.7 C (-34.1 F)
1973
-32.8 C (-27.0 F)
1974
-31.1 C (-24.0 F)
1975
-29.4 C (-20.9 F)
1976
-30.0 C (-22.0 F)
1977
-27.8 C (-18.0 F)
1978
-35.6 C (-32.1 F)
1979
-30.0 C (-22.0 F)
1980
-33.3 C (-27.9 F)
1981
-37.2 C (-35.0 F)
1982
-35.0 C (-31.0 F)
1983
-40.6 C (-41.1 F)
1984
-28.3 C (-18.9 F)
1985
-31.1 C (-24.0 F)
1986
-27.2 C (-17.0 F)
1987
-25.6 C (-14.1 F)
1988
-25.0 C (-13.0 F)
1989
-41.1 C (-42.0 F)
1990
-37.2 C (-35.0 F)
1991
-31.1 C (-24.0 F)
1992
-29.4 C (-20.9 F)
1993
-28.3 C (-18.9 F)
1994
-34.4 C (-29.9 F)
1995
-25.6 C (-14.1 F)
1996
-32.8 C (-27.0 F)
1997
-36.7 C (-34.1 F)
1998
-29.4 C (-20.9 F)
1999
-24.4 C (-11.9 F)
2000
-30.0 C (-22.0 F)
2001
-28.3 C (-18.9 F)
2002
-25.0 C (-13.0 F)
2003
-31.1 C (-24.0 F)
2004
-31.1 C (-24.0 F)
2005
-27.8 C (-18.0 F)
2006
-34.4 C (-29.9 F)
2007
-31.1 C (-24.0 F)
2008
-35.0 C (-31.0 F)
2009
-32.2 C (-26.0 F)
2010
-26.7 C (-16.1 F)
2011
-31.7 C (-25.1 F)
2012
-22.2 C (-8.0 F)
2013
-33.3 C (-27.9 F)
2014
-36.1 C (-33.0 F)
2015
-26.1 C (-15.0 F)
2016
-32.2 C (-26.0 F)
2017
-28.3 C (-18.9 F)
2018
n/a
Wettest day (Rx1day)
The wettest day of the year at Wilsall 8 ENE, 1957 to 2018. The record is 71.6 mm (2.8 in) in 1969, marked on the chart; the median year is 31.0 mm (1.2 in).
Wettest day (Rx1day) at Wilsall 8 ENE by year
Year
Wettest day (Rx1day)
1957
34.3 mm (1.4 in)
1958
21.8 mm (0.9 in)
1959
43.2 mm (1.7 in)
1960
24.1 mm (0.9 in)
1961
22.4 mm (0.9 in)
1962
24.4 mm (1.0 in)
1963
24.6 mm (1.0 in)
1964
47.2 mm (1.9 in)
1965
45.5 mm (1.8 in)
1966
24.1 mm (0.9 in)
1967
35.6 mm (1.4 in)
1968
31.8 mm (1.3 in)
1969
71.6 mm (2.8 in)
1970
41.4 mm (1.6 in)
1971
33.0 mm (1.3 in)
1972
22.9 mm (0.9 in)
1973
30.0 mm (1.2 in)
1974
51.6 mm (2.0 in)
1975
31.0 mm (1.2 in)
1976
26.4 mm (1.0 in)
1977
24.1 mm (0.9 in)
1978
60.2 mm (2.4 in)
1979
71.1 mm (2.8 in)
1980
52.8 mm (2.1 in)
1981
29.2 mm (1.1 in)
1982
32.0 mm (1.3 in)
1983
36.8 mm (1.4 in)
1984
36.1 mm (1.4 in)
1985
29.2 mm (1.1 in)
1986
22.9 mm (0.9 in)
1987
58.9 mm (2.3 in)
1988
54.4 mm (2.1 in)
1989
25.9 mm (1.0 in)
1990
23.9 mm (0.9 in)
1991
26.9 mm (1.1 in)
1992
66.3 mm (2.6 in)
1993
51.1 mm (2.0 in)
1994
21.8 mm (0.9 in)
1995
29.5 mm (1.2 in)
1996
18.8 mm (0.7 in)
1997
34.8 mm (1.4 in)
1998
44.2 mm (1.7 in)
1999
24.9 mm (1.0 in)
2000
22.9 mm (0.9 in)
2001
36.8 mm (1.4 in)
2002
25.9 mm (1.0 in)
2003
17.8 mm (0.7 in)
2004
61.7 mm (2.4 in)
2005
33.0 mm (1.3 in)
2006
30.5 mm (1.2 in)
2007
37.8 mm (1.5 in)
2008
37.3 mm (1.5 in)
2009
31.2 mm (1.2 in)
2010
31.0 mm (1.2 in)
2011
30.5 mm (1.2 in)
2012
20.8 mm (0.8 in)
2013
26.2 mm (1.0 in)
2014
30.2 mm (1.2 in)
2015
24.6 mm (1.0 in)
2016
36.1 mm (1.4 in)
2017
40.6 mm (1.6 in)
2018
4.3 mm (0.17 in)
Wettest five days (Rx5day)
The wettest five days of the year at Wilsall 8 ENE, 1957 to 2018. The record is 130.1 mm (5.1 in) in 1979, marked on the chart; the median year is 52.7 mm (2.1 in).
Wettest five days (Rx5day) at Wilsall 8 ENE by year
Year
Wettest five days (Rx5day)
1957
75.3 mm (3.0 in)
1958
35.8 mm (1.4 in)
1959
55.4 mm (2.2 in)
1960
35.3 mm (1.4 in)
1961
41.5 mm (1.6 in)
1962
45.3 mm (1.8 in)
1963
54.9 mm (2.2 in)
1964
72.2 mm (2.8 in)
1965
59.2 mm (2.3 in)
1966
30.0 mm (1.2 in)
1967
56.9 mm (2.2 in)
1968
42.5 mm (1.7 in)
1969
122.3 mm (4.8 in)
1970
52.4 mm (2.1 in)
1971
59.2 mm (2.3 in)
1972
39.4 mm (1.6 in)
1973
40.4 mm (1.6 in)
1974
52.9 mm (2.1 in)
1975
57.7 mm (2.3 in)
1976
46.2 mm (1.8 in)
1977
55.4 mm (2.2 in)
1978
102.1 mm (4.0 in)
1979
130.1 mm (5.1 in)
1980
70.8 mm (2.8 in)
1981
64.2 mm (2.5 in)
1982
64.1 mm (2.5 in)
1983
53.3 mm (2.1 in)
1984
50.8 mm (2.0 in)
1985
44.1 mm (1.7 in)
1986
40.9 mm (1.6 in)
1987
72.6 mm (2.9 in)
1988
62.5 mm (2.5 in)
1989
41.7 mm (1.6 in)
1990
53.4 mm (2.1 in)
1991
42.2 mm (1.7 in)
1992
117.1 mm (4.6 in)
1993
67.9 mm (2.7 in)
1994
39.1 mm (1.5 in)
1995
52.9 mm (2.1 in)
1996
35.1 mm (1.4 in)
1997
58.7 mm (2.3 in)
1998
81.4 mm (3.2 in)
1999
59.9 mm (2.4 in)
2000
34.8 mm (1.4 in)
2001
77.2 mm (3.0 in)
2002
34.4 mm (1.4 in)
2003
46.2 mm (1.8 in)
2004
95.3 mm (3.8 in)
2005
47.7 mm (1.9 in)
2006
45.8 mm (1.8 in)
2007
60.3 mm (2.4 in)
2008
95.4 mm (3.8 in)
2009
36.0 mm (1.4 in)
2010
58.4 mm (2.3 in)
2011
26.0 mm (1.0 in)
2012
32.2 mm (1.3 in)
2013
46.5 mm (1.8 in)
2014
49.3 mm (1.9 in)
2015
51.3 mm (2.0 in)
2016
45.7 mm (1.8 in)
2017
42.1 mm (1.7 in)
2018
9.9 mm (0.39 in)
Longest dry spell (CDD)
The longest dry spell of the year at Wilsall 8 ENE, 1957 to 2018. The record is 57 days in 1971, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Wilsall 8 ENE by year
Year
Longest dry spell (CDD)
1957
18 days
1958
17 days
1959
18 days
1960
17 days
1961
28 days
1962
23 days
1963
14 days
1964
32 days
1965
22 days
1966
24 days
1967
19 days
1968
17 days
1969
24 days
1970
20 days
1971
57 days
1972
21 days
1973
22 days
1974
23 days
1975
19 days
1976
35 days
1977
28 days
1978
27 days
1979
26 days
1980
23 days
1981
23 days
1982
16 days
1983
15 days
1984
23 days
1985
30 days
1986
26 days
1987
49 days
1988
38 days
1989
13 days
1990
31 days
1991
18 days
1992
23 days
1993
18 days
1994
31 days
1995
21 days
1996
36 days
1997
22 days
1998
30 days
1999
28 days
2000
18 days
2001
26 days
2002
24 days
2003
30 days
2004
23 days
2005
22 days
2006
27 days
2007
36 days
2008
17 days
2009
25 days
2010
22 days
2011
13 days
2012
22 days
2013
15 days
2014
13 days
2015
14 days
2016
15 days
2017
44 days
2018
13 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
57 years with a frost
Across 57 years with a frost, the median last spring frost at Wilsall 8 ENE falls on 13 June and the median first autumn frost on 7 September, which leaves a median of 86 days between them.
Fitted over all years, the growing season changes by +2.7 days per decade at this station.
Frost dates and growing season at Wilsall 8 ENE
Measure
Median, all years
Earliest period
Recent period (1986 to 2016)
Recent against earliest
Fitted trend
Last spring frost
13 June
n/a
8 June
n/a
-1.5 days per decade
First autumn frost
7 September
n/a
8 September
n/a
+1.2 days per decade
Growing days
86 days
n/a
92 days
n/a
+2.7 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
55 years, 1958 to 2016
A day with at least 32.0 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 90.6 mm (3.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Wilsall 8 ENE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
32.0 mm (1.3 in)
5 years
43.9 mm (1.7 in)
10 years
53.0 mm (2.1 in)
25 years
66.4 mm (2.6 in)
50 years
77.9 mm (3.1 in)
100 years
90.6 mm (3.6 in)
Longer than the 55 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, 55 years of values from 1958 to 2016.
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: 71.6 mm (2.8 in) in 1969; 71.1 mm (2.8 in) in 1979; 66.3 mm (2.6 in) in 1992.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Wilsall 8 ENE, at 1991 and 2004. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1991 ran 0.2 C (0.4 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 2004 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Wilsall 8 ENE, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1991
+0.2
+0.4
likely
5
2004
-0.4
-0.7
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Wilsall 8 ENE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Wilsall 8 ENE 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.