Record envelope, standing records and threshold days for Austin 1 W (USC00240375), Montana, United States, with 69 years of record.
Key Facts for Austin 1 W
Austin 1 W (USC00240375) is a weather station in Montana, United States at 46.65 latitude and -112.27 longitude, 1,479 m (4,851 ft) above sea level.
The station reports from 1950 to 2018, 69 years of record.
1,464 records set at Austin 1 W still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Austin 1 W set a daily record low minimum temperature of -27.2 C (-17.0 F) on 12 February 2018.
About the Station
Location: Montana, United States, 46.65 latitude, -112.27 longitude.
Elevation: 1,479 m (4,851 ft).
Period of record: 1950 to 2018, 69 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 Austin 1 W. 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 Austin 1 W, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-36.1 C (-33.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-38.9 C (-38.0 F)
n/a
n/a
Mar
21.1 C (70.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Apr
26.7 C (80.1 F)
-22.8 C (-9.0 F)
n/a
n/a
May
30.0 C (86.0 F)
-12.2 C (10.0 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
36.1 C (97.0 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
37.8 C (100.0 F)
-3.3 C (26.1 F)
n/a
n/a
Sep
33.3 C (91.9 F)
-11.1 C (12.0 F)
n/a
n/a
Oct
27.2 C (81.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Nov
20.0 C (68.0 F)
-33.3 C (-27.9 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 Austin 1 W still stand. 1951 holds the most, with 48.
Standing records at Austin 1 W by the year they were set
Year set
Standing records
1950
24
1951
48
1952
24
1953
31
1954
48
1955
39
1956
33
1957
25
1958
27
1959
24
1960
38
1961
33
1962
33
1963
32
1964
17
1965
31
1966
30
1967
30
1968
27
1969
25
1970
17
1971
20
1972
37
1973
32
1974
25
1975
20
1976
12
1977
18
1978
21
1979
10
1980
25
1981
23
1982
14
1983
29
1984
27
1985
47
1986
40
1987
9
1988
22
1989
21
1990
24
1991
20
1992
26
1993
19
1994
20
1995
17
1996
23
1997
20
1998
8
1999
16
2000
16
2001
6
2002
22
2003
16
2005
4
2006
14
2007
8
2008
12
2009
27
2010
12
2011
10
2012
12
2013
7
2014
4
2015
9
2016
2
2017
1
2018
1
All-Time Record Progression
5 new records
5 all-time records were set at Austin 1 W between 10 July 1983 and 2 February 1989. Each dot is a new record.
When Austin 1 W set new all-time records
Date
Kind
Detail
1983-07-10
Record daily precipitation
Record daily precipitation 93.7 mm (3.7 in)
1983-12-24
Record low maximum temperature
Record low maximum temperature -28.3 C (-18.9 F)
1983-12-24
Record low minimum temperature
Record low minimum temperature -40.6 C (-41.1 F)
1989-02-01
Record low maximum temperature
Record low maximum temperature -29.4 C (-20.9 F)
1989-02-02
Record low maximum temperature
Record low maximum temperature -33.9 C (-29.0 F)
Wettest Day of Each Month
Jul: 93.7 mm (3.7 in)
The wettest day on record for each calendar month at Austin 1 W. The most was 93.7 mm (3.7 in) on 10 July 1983.
Record daily precipitation for each month at Austin 1 W
Month
Record daily precipitation (mm)
Date
Jan
35.6 mm (1.4 in)
11 January 1972
Feb
20.3 mm (0.8 in)
13 February 1958
Mar
25.4 mm (1.0 in)
25 March 2006
Apr
44.5 mm (1.8 in)
6 April 2006
May
51.3 mm (2.0 in)
21 May 2007
Jun
68.6 mm (2.7 in)
15 June 2010
Jul
93.7 mm (3.7 in)
10 July 1983
Aug
33.0 mm (1.3 in)
23 August 2014
Sep
36.8 mm (1.4 in)
8 September 1995
Oct
25.4 mm (1.0 in)
28 October 1993
Nov
42.9 mm (1.7 in)
15 November 2008
Dec
24.4 mm (1.0 in)
2 December 1977
Period of Record Coverage
1950 to 2018
Complete yearUnder 90 percent of days
68 years of record at Austin 1 W, 1950 to 2018. 13 years have data for under 90 percent of days and are left out of rankings: 1950, 1975, 1987, 2003, 2005, 2010, 2012, 2013 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 49 complete years at Austin 1 W, 1951 to 2011. Blue stripes are years cooler than the station's own mean of 5.3 C (41.6 F); red stripes are warmer. The coolest year was 1951, at 3.2 C (37.8 F), and the warmest was 1953, at 6.9 C (44.4 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Austin 1 W as warming stripes, 1951 to 2011
Year
Annual mean temperature
Difference from the station mean
1951
3.2 C
-2.12 C
1952
5.5 C
+0.13 C
1953
6.9 C
+1.54 C
1954
5.4 C
+0.02 C
1955
3.6 C
-1.72 C
1956
5.4 C
+0.02 C
1957
4.8 C
-0.53 C
1958
6.1 C
+0.77 C
1959
5.0 C
-0.34 C
1960
5.4 C
+0.03 C
1961
6.2 C
+0.90 C
1962
5.9 C
+0.59 C
1963
6.3 C
+0.96 C
1964
5.1 C
-0.27 C
1965
5.2 C
-0.14 C
1966
6.0 C
+0.66 C
1967
5.8 C
+0.41 C
1968
5.1 C
-0.23 C
1969
5.1 C
-0.24 C
1970
5.4 C
+0.06 C
1971
5.3 C
-0.05 C
1972
5.1 C
-0.28 C
1973
5.8 C
+0.48 C
1974
6.2 C
+0.90 C
1976
6.5 C
+1.11 C
1979
5.1 C
-0.21 C
1980
5.2 C
-0.16 C
1981
6.4 C
+1.01 C
1982
4.0 C
-1.30 C
1983
5.5 C
+0.11 C
1984
5.5 C
+0.15 C
1985
4.4 C
-0.98 C
1986
6.1 C
+0.80 C
1988
6.4 C
+1.01 C
1989
4.3 C
-1.04 C
1990
5.6 C
+0.22 C
1991
5.7 C
+0.32 C
1992
6.0 C
+0.70 C
1993
3.9 C
-1.44 C
1994
6.0 C
+0.65 C
1995
5.0 C
-0.32 C
1996
3.8 C
-1.50 C
1997
4.9 C
-0.49 C
1998
5.8 C
+0.46 C
1999
5.9 C
+0.57 C
2000
5.2 C
-0.10 C
2001
5.6 C
+0.25 C
2002
4.6 C
-0.74 C
2011
4.5 C
-0.83 C
The fitted trend in annual mean temperature here over 1951 to 2011 is -0.04 C (-0.18 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.2) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Austin 1 W
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.04 C (-0.18 to 0.10) per decade
-0.1 F (-0.3 to 0.2) per decade
1951 to 2011
49
Not clearly different from zero
Mean daily maximum
-0.15 C (-0.30 to 0.01) per decade
-0.27 F (-0.54 to 0.01) per decade
1951 to 2011
49
Not clearly different from zero
Mean daily minimum
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.4) per decade
1951 to 2011
49
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
1950 to 2018
Yearly extremes at Austin 1 W: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1961
33.1 C (91.5 F)
68
Coldest night (TNn)
-40.6 C (-41.1 F)
1983
-31.1 C (-24.0 F)
68
Wettest day (Rx1day)
93.7 mm (3.7 in)
1983
26.2 mm (1.0 in)
65
Wettest five days (Rx5day)
105.0 mm (4.1 in)
1969
43.3 mm (1.7 in)
64
Longest dry spell (CDD)
91 days
2010
25 days
64
Hottest day (TXx)
The hottest day of the year at Austin 1 W, 1950 to 2018. The record is 37.8 C (100.0 F) in 1961, marked on the chart; the median year is 33.1 C (91.5 F).
Hottest day (TXx) at Austin 1 W by year
Year
Hottest day (TXx)
1950
31.7 C (89.1 F)
1951
35.0 C (95.0 F)
1952
36.1 C (97.0 F)
1953
35.0 C (95.0 F)
1954
32.2 C (90.0 F)
1955
33.3 C (91.9 F)
1956
32.2 C (90.0 F)
1957
32.8 C (91.0 F)
1958
32.2 C (90.0 F)
1959
32.2 C (90.0 F)
1960
35.6 C (96.1 F)
1961
37.8 C (100.0 F)
1962
32.8 C (91.0 F)
1963
36.1 C (97.0 F)
1964
32.8 C (91.0 F)
1965
31.1 C (88.0 F)
1966
33.9 C (93.0 F)
1967
32.2 C (90.0 F)
1968
33.9 C (93.0 F)
1969
35.6 C (96.1 F)
1970
33.3 C (91.9 F)
1971
32.8 C (91.0 F)
1972
33.3 C (91.9 F)
1973
36.1 C (97.0 F)
1974
37.2 C (99.0 F)
1975
33.9 C (93.0 F)
1976
32.8 C (91.0 F)
1977
32.2 C (90.0 F)
1978
31.7 C (89.1 F)
1979
33.3 C (91.9 F)
1980
32.2 C (90.0 F)
1981
34.4 C (93.9 F)
1982
32.2 C (90.0 F)
1983
35.6 C (96.1 F)
1984
32.8 C (91.0 F)
1985
35.0 C (95.0 F)
1986
32.8 C (91.0 F)
1987
19.4 C (66.9 F)
1988
35.0 C (95.0 F)
1989
33.3 C (91.9 F)
1990
35.6 C (96.1 F)
1991
32.8 C (91.0 F)
1992
33.3 C (91.9 F)
1993
31.1 C (88.0 F)
1994
32.8 C (91.0 F)
1995
32.8 C (91.0 F)
1996
32.8 C (91.0 F)
1997
30.0 C (86.0 F)
1998
33.3 C (91.9 F)
1999
33.9 C (93.0 F)
2000
35.6 C (96.1 F)
2001
33.3 C (91.9 F)
2002
34.4 C (93.9 F)
2003
35.6 C (96.1 F)
2005
28.9 C (84.0 F)
2006
34.4 C (93.9 F)
2007
35.6 C (96.1 F)
2008
33.3 C (91.9 F)
2009
32.2 C (90.0 F)
2010
31.7 C (89.1 F)
2011
31.7 C (89.1 F)
2012
32.2 C (90.0 F)
2013
34.4 C (93.9 F)
2014
31.7 C (89.1 F)
2015
35.0 C (95.0 F)
2016
32.8 C (91.0 F)
2017
18.3 C (64.9 F)
2018
5.6 C (42.1 F)
Coldest night (TNn)
The coldest night of the year at Austin 1 W, 1950 to 2018. The record is -40.6 C (-41.1 F) in 1983, marked on the chart; the median year is -31.1 C (-24.0 F).
Coldest night (TNn) at Austin 1 W by year
Year
Coldest night (TNn)
1950
-26.7 C (-16.1 F)
1951
-35.0 C (-31.0 F)
1952
-33.3 C (-27.9 F)
1953
-23.3 C (-9.9 F)
1954
-35.6 C (-32.1 F)
1955
-33.3 C (-27.9 F)
1956
-36.1 C (-33.0 F)
1957
-36.1 C (-33.0 F)
1958
-23.3 C (-9.9 F)
1959
-33.3 C (-27.9 F)
1960
-31.1 C (-24.0 F)
1961
-31.7 C (-25.1 F)
1962
-32.2 C (-26.0 F)
1963
-34.4 C (-29.9 F)
1964
-38.3 C (-36.9 F)
1965
-27.8 C (-18.0 F)
1966
-28.3 C (-18.9 F)
1967
-30.0 C (-22.0 F)
1968
-35.0 C (-31.0 F)
1969
-32.8 C (-27.0 F)
1970
-27.8 C (-18.0 F)
1971
-31.7 C (-25.1 F)
1972
-36.1 C (-33.0 F)
1973
-31.7 C (-25.1 F)
1974
-33.3 C (-27.9 F)
1975
-29.4 C (-20.9 F)
1976
-32.2 C (-26.0 F)
1977
-32.8 C (-27.0 F)
1978
-36.7 C (-34.1 F)
1979
-30.6 C (-23.1 F)
1980
-33.9 C (-29.0 F)
1981
-33.9 C (-29.0 F)
1982
-31.1 C (-24.0 F)
1983
-40.6 C (-41.1 F)
1984
-27.8 C (-18.0 F)
1985
-30.6 C (-23.1 F)
1986
-27.2 C (-17.0 F)
1987
-25.6 C (-14.1 F)
1988
-27.2 C (-17.0 F)
1989
-38.9 C (-38.0 F)
1990
-38.3 C (-36.9 F)
1991
-28.9 C (-20.0 F)
1992
-32.2 C (-26.0 F)
1993
-30.6 C (-23.1 F)
1994
-33.3 C (-27.9 F)
1995
-30.0 C (-22.0 F)
1996
-35.0 C (-31.0 F)
1997
-31.7 C (-25.1 F)
1998
-30.6 C (-23.1 F)
1999
-21.7 C (-7.1 F)
2000
-30.6 C (-23.1 F)
2001
-22.8 C (-9.0 F)
2002
-30.6 C (-23.1 F)
2003
-30.6 C (-23.1 F)
2005
-27.8 C (-18.0 F)
2006
-33.3 C (-27.9 F)
2007
-26.7 C (-16.1 F)
2008
-32.8 C (-27.0 F)
2009
-33.9 C (-29.0 F)
2010
-28.3 C (-18.9 F)
2011
-33.3 C (-27.9 F)
2012
-23.3 C (-9.9 F)
2013
-22.8 C (-9.0 F)
2014
-26.7 C (-16.1 F)
2015
-19.4 C (-2.9 F)
2016
-19.4 C (-2.9 F)
2017
-27.2 C (-17.0 F)
2018
-27.2 C (-17.0 F)
Wettest day (Rx1day)
The wettest day of the year at Austin 1 W, 1950 to 2018. The record is 93.7 mm (3.7 in) in 1983, marked on the chart; the median year is 26.2 mm (1.0 in).
Wettest day (Rx1day) at Austin 1 W by year
Year
Wettest day (Rx1day)
1950
32.8 mm (1.3 in)
1951
29.5 mm (1.2 in)
1952
27.9 mm (1.1 in)
1953
34.3 mm (1.4 in)
1954
24.9 mm (1.0 in)
1955
24.4 mm (1.0 in)
1956
21.8 mm (0.9 in)
1957
39.1 mm (1.5 in)
1958
20.8 mm (0.8 in)
1959
17.0 mm (0.7 in)
1960
19.1 mm (0.8 in)
1961
22.1 mm (0.9 in)
1962
25.7 mm (1.0 in)
1963
17.3 mm (0.7 in)
1964
29.7 mm (1.2 in)
1965
26.9 mm (1.1 in)
1966
14.2 mm (0.6 in)
1967
19.3 mm (0.8 in)
1968
27.9 mm (1.1 in)
1969
53.1 mm (2.1 in)
1970
36.8 mm (1.4 in)
1971
28.4 mm (1.1 in)
1972
35.6 mm (1.4 in)
1973
15.5 mm (0.6 in)
1974
31.0 mm (1.2 in)
1975
40.1 mm (1.6 in)
1976
22.1 mm (0.9 in)
1977
24.4 mm (1.0 in)
1978
19.8 mm (0.8 in)
1979
16.0 mm (0.6 in)
1980
41.1 mm (1.6 in)
1981
47.2 mm (1.9 in)
1982
24.1 mm (0.9 in)
1983
93.7 mm (3.7 in)
1984
24.1 mm (0.9 in)
1985
26.2 mm (1.0 in)
1986
23.1 mm (0.9 in)
1987
15.5 mm (0.6 in)
1988
27.2 mm (1.1 in)
1989
57.4 mm (2.3 in)
1990
21.3 mm (0.8 in)
1991
34.5 mm (1.4 in)
1992
18.0 mm (0.7 in)
1993
33.3 mm (1.3 in)
1994
21.1 mm (0.8 in)
1995
36.8 mm (1.4 in)
1996
21.8 mm (0.9 in)
1997
30.0 mm (1.2 in)
1998
27.4 mm (1.1 in)
1999
21.8 mm (0.9 in)
2000
19.8 mm (0.8 in)
2001
31.2 mm (1.2 in)
2002
24.9 mm (1.0 in)
2003
14.2 mm (0.6 in)
2005
18.3 mm (0.7 in)
2006
44.5 mm (1.8 in)
2007
51.3 mm (2.0 in)
2008
42.9 mm (1.7 in)
2009
36.6 mm (1.4 in)
2010
68.6 mm (2.7 in)
2011
67.3 mm (2.6 in)
2012
n/a
2013
n/a
2014
33.0 mm (1.3 in)
2015
22.1 mm (0.9 in)
2016
19.1 mm (0.8 in)
2017
15.2 mm (0.6 in)
2018
n/a
Wettest five days (Rx5day)
The wettest five days of the year at Austin 1 W, 1950 to 2018. The record is 105.0 mm (4.1 in) in 1969, marked on the chart; the median year is 43.3 mm (1.7 in).
Wettest five days (Rx5day) at Austin 1 W by year
Year
Wettest five days (Rx5day)
1950
59.8 mm (2.4 in)
1951
48.3 mm (1.9 in)
1952
34.3 mm (1.4 in)
1953
49.3 mm (1.9 in)
1954
50.5 mm (2.0 in)
1955
40.3 mm (1.6 in)
1956
26.9 mm (1.1 in)
1957
69.4 mm (2.7 in)
1958
43.3 mm (1.7 in)
1959
34.8 mm (1.4 in)
1960
31.0 mm (1.2 in)
1961
43.7 mm (1.7 in)
1962
42.7 mm (1.7 in)
1963
30.3 mm (1.2 in)
1964
60.2 mm (2.4 in)
1965
53.5 mm (2.1 in)
1966
22.8 mm (0.9 in)
1967
34.0 mm (1.3 in)
1968
56.9 mm (2.2 in)
1969
105.0 mm (4.1 in)
1970
44.0 mm (1.7 in)
1971
35.7 mm (1.4 in)
1972
44.9 mm (1.8 in)
1973
23.6 mm (0.9 in)
1974
37.4 mm (1.5 in)
1975
76.0 mm (3.0 in)
1976
37.6 mm (1.5 in)
1977
37.9 mm (1.5 in)
1978
43.9 mm (1.7 in)
1979
19.0 mm (0.7 in)
1980
92.2 mm (3.6 in)
1981
90.1 mm (3.5 in)
1982
38.9 mm (1.5 in)
1983
101.1 mm (4.0 in)
1984
46.5 mm (1.8 in)
1985
53.4 mm (2.1 in)
1986
38.1 mm (1.5 in)
1987
27.4 mm (1.1 in)
1988
39.6 mm (1.6 in)
1989
62.2 mm (2.4 in)
1990
43.4 mm (1.7 in)
1991
50.3 mm (2.0 in)
1992
46.3 mm (1.8 in)
1993
43.0 mm (1.7 in)
1994
39.8 mm (1.6 in)
1995
73.7 mm (2.9 in)
1996
51.1 mm (2.0 in)
1997
48.0 mm (1.9 in)
1998
57.9 mm (2.3 in)
1999
49.0 mm (1.9 in)
2000
37.8 mm (1.5 in)
2001
43.2 mm (1.7 in)
2002
68.5 mm (2.7 in)
2003
30.4 mm (1.2 in)
2005
20.1 mm (0.8 in)
2006
45.4 mm (1.8 in)
2007
38.4 mm (1.5 in)
2008
3.8 mm (0.15 in)
2009
43.5 mm (1.7 in)
2010
68.6 mm (2.7 in)
2011
n/a
2012
n/a
2013
n/a
2014
43.2 mm (1.7 in)
2015
26.7 mm (1.1 in)
2016
20.6 mm (0.8 in)
2017
15.2 mm (0.6 in)
2018
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Austin 1 W, 1950 to 2018. The record is 91 days in 2010, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Austin 1 W by year
Year
Longest dry spell (CDD)
1950
17 days
1951
11 days
1952
29 days
1953
32 days
1954
22 days
1955
45 days
1956
21 days
1957
20 days
1958
17 days
1959
51 days
1960
30 days
1961
27 days
1962
29 days
1963
15 days
1964
39 days
1965
22 days
1966
22 days
1967
35 days
1968
27 days
1969
35 days
1970
33 days
1971
33 days
1972
23 days
1973
34 days
1974
24 days
1975
15 days
1976
50 days
1977
35 days
1978
50 days
1979
28 days
1980
24 days
1981
24 days
1982
18 days
1983
20 days
1984
25 days
1985
32 days
1986
25 days
1987
17 days
1988
36 days
1989
19 days
1990
23 days
1991
34 days
1992
34 days
1993
22 days
1994
26 days
1995
20 days
1996
19 days
1997
23 days
1998
30 days
1999
24 days
2000
26 days
2001
31 days
2002
23 days
2003
23 days
2005
12 days
2006
36 days
2007
43 days
2008
21 days
2009
31 days
2010
91 days
2011
n/a
2012
n/a
2013
n/a
2014
20 days
2015
19 days
2016
17 days
2017
9 days
2018
n/a
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
49 years with a frost
Across 49 years with a frost, the median last spring frost at Austin 1 W falls on 8 June and the median first autumn frost on 8 September, which leaves a median of 98 days between them.
Fitted over all years, the growing season changes by +4.7 days per decade at this station.
Frost dates and growing season at Austin 1 W
Measure
Median, all years
Earliest period
Recent period (1970 to 2011)
Recent against earliest
Fitted trend
Last spring frost
8 June
n/a
7 June
n/a
-1.0 days per decade
First autumn frost
8 September
n/a
11 September
n/a
+3.7 days per decade
Growing days
98 days
n/a
100 days
n/a
+4.7 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
52 years, 1951 to 2007
A day with at least 25.7 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 82.2 mm (3.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Austin 1 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
25.7 mm (1.0 in)
5 years
35.5 mm (1.4 in)
10 years
43.7 mm (1.7 in)
25 years
56.6 mm (2.2 in)
50 years
68.3 mm (2.7 in)
100 years
82.2 mm (3.2 in)
Longer than the 52 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, 52 years of values from 1951 to 2007.
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: 93.7 mm (3.7 in) in 1983; 57.4 mm (2.3 in) in 1989; 53.1 mm (2.1 in) in 1969.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Austin 1 W, at 1973. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1973 ran 0.3 C (0.5 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Austin 1 W, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1973
-0.3
-0.5
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 Austin 1 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Austin 1 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.