Record envelope, standing records and threshold days for Seymour 3NW (USC00418221), Texas, United States, with 122 years of record.
Key Facts for Seymour 3NW
Seymour 3NW (USC00418221) is a weather station in Texas, United States at 33.64 latitude and -99.29 longitude, 400 m (1,311 ft) above sea level.
The station reports from 1905 to 2026, 122 years of record.
1,464 records set at Seymour 3NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Seymour 3NW set a daily record precipitation of 84.6 mm (3.3 in) on 6 June 2026.
About the Station
Location: Texas, United States, 33.64 latitude, -99.29 longitude.
Elevation: 400 m (1,311 ft).
Period of record: 1905 to 2026, 122 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 Seymour 3NW. 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 Seymour 3NW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
31.7 C (89.1 F)
-25.6 C (-14.1 F)
n/a
n/a
Feb
33.9 C (93.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Mar
37.8 C (100.0 F)
-15.0 C (5.0 F)
n/a
n/a
Apr
39.4 C (102.9 F)
-5.6 C (21.9 F)
n/a
n/a
May
41.7 C (107.1 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
46.1 C (115.0 F)
8.3 C (46.9 F)
n/a
n/a
Jul
45.6 C (114.1 F)
12.2 C (54.0 F)
n/a
n/a
Aug
48.9 C (120.0 F)
10.0 C (50.0 F)
n/a
n/a
Sep
44.4 C (111.9 F)
1.1 C (34.0 F)
n/a
n/a
Oct
41.1 C (106.0 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
33.3 C (91.9 F)
-13.9 C (7.0 F)
n/a
n/a
Dec
32.2 C (90.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Seymour 3NW still stand. 1953 holds the most, with 38.
Standing records at Seymour 3NW by the year they were set
Year set
Standing records
1905
6
1906
6
1908
9
1909
21
1910
17
1911
30
1912
30
1913
19
1914
16
1915
14
1924
3
1925
17
1926
12
1927
19
1928
20
1929
12
1930
20
1931
18
1932
21
1933
14
1934
25
1935
15
1936
27
1937
24
1938
9
1939
26
1940
15
1941
4
1942
12
1943
17
1944
8
1945
11
1946
23
1947
17
1948
21
1949
11
1950
23
1951
22
1952
27
1953
38
1954
23
1955
24
1956
19
1957
25
1958
7
1959
17
1960
17
1961
19
1962
16
1963
19
1964
12
1965
18
1966
23
1967
17
1968
5
1969
8
1970
12
1971
16
1972
16
1973
8
1974
21
1975
12
1976
18
1977
11
1978
14
1979
17
1980
17
1981
8
1982
8
1983
23
1984
12
1985
24
1986
19
1987
7
1988
7
1989
28
1990
18
1991
11
1992
10
1993
11
1994
9
1995
14
1996
13
1997
16
1998
13
1999
6
2000
18
2001
8
2002
11
2003
12
2004
7
2005
11
2006
10
All-Time Record Progression
2 new records
2 all-time records were set at Seymour 3NW between 4 January 1947 and 16 May 1989. Each dot is a new record.
When Seymour 3NW set new all-time records
Date
Kind
Detail
1947-01-04
Record low minimum temperature
Record low minimum temperature -25.6 C (-14.1 F)
1989-05-16
Record daily precipitation
Record daily precipitation 157.5 mm (6.2 in)
Wettest Day of Each Month
May: 157.5 mm (6.2 in)
The wettest day on record for each calendar month at Seymour 3NW. The most was 157.5 mm (6.2 in) on 16 May 1989.
Record daily precipitation for each month at Seymour 3NW
Month
Record daily precipitation (mm)
Date
Jan
64.0 mm (2.5 in)
17 January 2020
Feb
83.8 mm (3.3 in)
28 February 1981
Mar
99.1 mm (3.9 in)
23 March 2000
Apr
113.8 mm (4.5 in)
12 April 1967
May
157.5 mm (6.2 in)
16 May 1989
Jun
96.5 mm (3.8 in)
5 June 1986
Jul
145.8 mm (5.7 in)
29 July 2004
Aug
106.7 mm (4.2 in)
5 August 1978
Sep
150.6 mm (5.9 in)
9 September 2020
Oct
101.6 mm (4.0 in)
4 October 1953
Nov
96.8 mm (3.8 in)
15 November 2001
Dec
101.6 mm (4.0 in)
8 December 1911
Period of Record Coverage
1905 to 2006
Complete yearUnder 90 percent of days
93 years of record at Seymour 3NW, 1905 to 2006. 21 years have data for under 90 percent of days and are left out of rankings: 1905, 1906, 1908, 1911, 1913, 1915, 1924, 1925 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 63 complete years at Seymour 3NW, 1909 to 2005. Blue stripes are years cooler than the station's own mean of 17.2 C (62.9 F); red stripes are warmer. The coolest year was 1979, at 15.9 C (60.5 F), and the warmest was 1946, at 18.9 C (66.1 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Seymour 3NW as warming stripes, 1909 to 2005
Year
Annual mean temperature
Difference from the station mean
1909
17.8 C
+0.59 C
1910
18.2 C
+0.98 C
1912
17.0 C
-0.20 C
1914
17.7 C
+0.53 C
1927
18.4 C
+1.22 C
1929
17.2 C
+0.03 C
1930
17.4 C
+0.19 C
1931
18.1 C
+0.88 C
1932
16.4 C
-0.77 C
1933
17.8 C
+0.57 C
1934
18.8 C
+1.63 C
1935
17.6 C
+0.36 C
1936
17.4 C
+0.19 C
1937
17.1 C
-0.10 C
1944
17.0 C
-0.21 C
1946
18.9 C
+1.75 C
1949
17.2 C
+0.02 C
1950
17.3 C
+0.15 C
1951
17.9 C
+0.68 C
1952
18.4 C
+1.20 C
1954
18.8 C
+1.62 C
1955
17.7 C
+0.52 C
1956
17.5 C
+0.29 C
1957
16.3 C
-0.87 C
1959
16.2 C
-0.98 C
1961
16.3 C
-0.89 C
1962
17.5 C
+0.26 C
1963
18.0 C
+0.76 C
1964
17.4 C
+0.24 C
1965
17.4 C
+0.20 C
1967
16.9 C
-0.27 C
1968
16.1 C
-1.14 C
1969
17.1 C
-0.08 C
1970
16.7 C
-0.46 C
1971
17.1 C
-0.09 C
1972
16.8 C
-0.39 C
1973
16.7 C
-0.52 C
1974
17.3 C
+0.09 C
1975
16.2 C
-1.04 C
1976
16.2 C
-0.96 C
1977
17.7 C
+0.47 C
1978
16.5 C
-0.73 C
1979
15.9 C
-1.34 C
1980
17.3 C
+0.11 C
1981
17.2 C
+0.04 C
1982
16.5 C
-0.66 C
1983
16.0 C
-1.18 C
1984
17.1 C
-0.09 C
1985
16.5 C
-0.70 C
1986
17.5 C
+0.28 C
1987
16.3 C
-0.86 C
1988
16.6 C
-0.59 C
1989
16.6 C
-0.55 C
1991
17.1 C
-0.09 C
1993
16.3 C
-0.89 C
1994
17.2 C
-0.01 C
1995
17.0 C
-0.22 C
1996
17.2 C
-0.02 C
1997
16.6 C
-0.55 C
1999
18.3 C
+1.06 C
2003
17.5 C
+0.26 C
2004
17.1 C
-0.07 C
2005
17.3 C
+0.10 C
The annual mean temperature here has fallen by 0.12 C (0.05 to 0.18) per decade over 1909 to 2005. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 63 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Seymour 3NW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.11 C (-0.18 to -0.05) per decade
-0.2 F (-0.3 to -0.1) per decade
1909 to 2005
63
Fall
Mean daily maximum
-0.2 C (-0.3 to -0.1) per decade
-0.4 F (-0.5 to -0.2) per decade
1909 to 2005
63
Fall
Mean daily minimum
-0.03 C (-0.09 to 0.04) per decade
-0.05 F (-0.17 to 0.07) per decade
1909 to 2005
63
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
1905 to 2026
Yearly extremes at Seymour 3NW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
48.9 C (120.0 F)
1936
42.8 C (109.0 F)
93
Coldest night (TNn)
-25.6 C (-14.1 F)
1947
-12.8 C (9.0 F)
93
Wettest day (Rx1day)
157.5 mm (6.2 in)
1989
68.6 mm (2.7 in)
111
Wettest five days (Rx5day)
220.2 mm (8.7 in)
2005
103.9 mm (4.1 in)
111
Longest dry spell (CDD)
82 days
2011
37 days
111
Hottest day (TXx)
The hottest day of the year at Seymour 3NW, 1905 to 2026. The record is 48.9 C (120.0 F) in 1936, marked on the chart; the median year is 42.8 C (109.0 F).
Hottest day (TXx) at Seymour 3NW by year
Year
Hottest day (TXx)
1905
38.9 C (102.0 F)
1906
36.1 C (97.0 F)
1908
38.9 C (102.0 F)
1909
41.1 C (106.0 F)
1910
42.8 C (109.0 F)
1911
43.9 C (111.0 F)
1912
44.4 C (111.9 F)
1913
41.1 C (106.0 F)
1914
43.3 C (109.9 F)
1915
39.4 C (102.9 F)
1923
n/a
1924
42.2 C (108.0 F)
1925
44.4 C (111.9 F)
1926
40.0 C (104.0 F)
1927
41.7 C (107.1 F)
1928
43.3 C (109.9 F)
1929
43.3 C (109.9 F)
1930
43.3 C (109.9 F)
1931
41.7 C (107.1 F)
1932
42.8 C (109.0 F)
1933
42.8 C (109.0 F)
1934
43.3 C (109.9 F)
1935
44.4 C (111.9 F)
1936
48.9 C (120.0 F)
1937
46.1 C (115.0 F)
1938
42.8 C (109.0 F)
1939
45.6 C (114.1 F)
1940
44.4 C (111.9 F)
1941
41.7 C (107.1 F)
1942
43.3 C (109.9 F)
1943
46.7 C (116.1 F)
1944
44.4 C (111.9 F)
1945
43.3 C (109.9 F)
1946
45.6 C (114.1 F)
1947
43.3 C (109.9 F)
1948
44.4 C (111.9 F)
1949
43.3 C (109.9 F)
1950
39.4 C (102.9 F)
1951
44.4 C (111.9 F)
1952
45.6 C (114.1 F)
1953
45.6 C (114.1 F)
1954
45.0 C (113.0 F)
1955
44.4 C (111.9 F)
1956
43.9 C (111.0 F)
1957
43.3 C (109.9 F)
1958
42.2 C (108.0 F)
1959
43.9 C (111.0 F)
1960
42.8 C (109.0 F)
1961
39.4 C (102.9 F)
1962
42.8 C (109.0 F)
1963
41.7 C (107.1 F)
1964
45.6 C (114.1 F)
1965
40.6 C (105.1 F)
1966
42.2 C (108.0 F)
1967
41.1 C (106.0 F)
1968
40.6 C (105.1 F)
1969
44.4 C (111.9 F)
1970
41.1 C (106.0 F)
1971
40.6 C (105.1 F)
1972
43.3 C (109.9 F)
1973
40.0 C (104.0 F)
1974
42.2 C (108.0 F)
1975
37.8 C (100.0 F)
1976
40.6 C (105.1 F)
1977
40.6 C (105.1 F)
1978
43.9 C (111.0 F)
1979
38.3 C (100.9 F)
1980
45.6 C (114.1 F)
1981
41.1 C (106.0 F)
1982
40.0 C (104.0 F)
1983
41.7 C (107.1 F)
1984
42.2 C (108.0 F)
1985
41.1 C (106.0 F)
1986
43.3 C (109.9 F)
1987
40.6 C (105.1 F)
1988
41.1 C (106.0 F)
1989
41.7 C (107.1 F)
1990
40.0 C (104.0 F)
1991
40.0 C (104.0 F)
1992
39.4 C (102.9 F)
1993
41.1 C (106.0 F)
1994
46.1 C (115.0 F)
1995
43.9 C (111.0 F)
1996
43.3 C (109.9 F)
1997
40.6 C (105.1 F)
1998
43.9 C (111.0 F)
1999
42.8 C (109.0 F)
2000
43.9 C (111.0 F)
2001
42.2 C (108.0 F)
2002
38.9 C (102.0 F)
2003
43.3 C (109.9 F)
2004
40.6 C (105.1 F)
2005
40.0 C (104.0 F)
2006
41.7 C (107.1 F)
2010
n/a
2011
n/a
2012
n/a
2013
n/a
2014
n/a
2015
n/a
2016
n/a
2017
n/a
2018
n/a
2019
n/a
2020
n/a
2021
n/a
2022
n/a
2023
n/a
2024
n/a
2025
n/a
2026
n/a
Coldest night (TNn)
The coldest night of the year at Seymour 3NW, 1905 to 2026. The record is -25.6 C (-14.1 F) in 1947, marked on the chart; the median year is -12.8 C (9.0 F).
Coldest night (TNn) at Seymour 3NW by year
Year
Coldest night (TNn)
1905
-7.2 C (19.0 F)
1906
-11.7 C (10.9 F)
1908
-9.4 C (15.1 F)
1909
-15.6 C (3.9 F)
1910
-12.8 C (9.0 F)
1911
-15.0 C (5.0 F)
1912
-17.8 C (0.0 F)
1913
-15.0 C (5.0 F)
1914
-11.7 C (10.9 F)
1915
-7.2 C (19.0 F)
1923
n/a
1924
-15.6 C (3.9 F)
1925
-11.1 C (12.0 F)
1926
-14.4 C (6.1 F)
1927
-11.7 C (10.9 F)
1928
-13.3 C (8.1 F)
1929
-13.9 C (7.0 F)
1930
-21.1 C (-6.0 F)
1931
-8.3 C (17.1 F)
1932
-12.2 C (10.0 F)
1933
-20.6 C (-5.1 F)
1934
-9.4 C (15.1 F)
1935
-15.6 C (3.9 F)
1936
-17.2 C (1.0 F)
1937
-12.8 C (9.0 F)
1938
-12.2 C (10.0 F)
1939
-8.9 C (16.0 F)
1940
-15.6 C (3.9 F)
1941
-7.8 C (18.0 F)
1942
-16.1 C (3.0 F)
1943
-16.7 C (1.9 F)
1944
-10.6 C (12.9 F)
1945
-11.7 C (10.9 F)
1946
-10.0 C (14.0 F)
1947
-25.6 C (-14.1 F)
1948
-15.0 C (5.0 F)
1949
-11.1 C (12.0 F)
1950
-13.9 C (7.0 F)
1951
-18.9 C (-2.0 F)
1952
-8.3 C (17.1 F)
1953
-15.0 C (5.0 F)
1954
-11.1 C (12.0 F)
1955
-9.4 C (15.1 F)
1956
-12.2 C (10.0 F)
1957
-15.6 C (3.9 F)
1958
-12.8 C (9.0 F)
1959
-16.7 C (1.9 F)
1960
-14.4 C (6.1 F)
1961
-12.8 C (9.0 F)
1962
-17.2 C (1.0 F)
1963
-15.6 C (3.9 F)
1964
-13.3 C (8.1 F)
1965
-10.6 C (12.9 F)
1966
-21.7 C (-7.1 F)
1967
-12.2 C (10.0 F)
1968
-13.9 C (7.0 F)
1969
-12.8 C (9.0 F)
1970
-11.1 C (12.0 F)
1971
-14.4 C (6.1 F)
1972
-13.9 C (7.0 F)
1973
-12.2 C (10.0 F)
1974
-12.2 C (10.0 F)
1975
-12.8 C (9.0 F)
1976
-13.9 C (7.0 F)
1977
-17.2 C (1.0 F)
1978
-16.7 C (1.9 F)
1979
-15.0 C (5.0 F)
1980
-13.9 C (7.0 F)
1981
-14.4 C (6.1 F)
1982
-15.6 C (3.9 F)
1983
-17.8 C (0.0 F)
1984
-13.9 C (7.0 F)
1985
-22.8 C (-9.0 F)
1986
-13.3 C (8.1 F)
1987
-12.2 C (10.0 F)
1988
-12.2 C (10.0 F)
1989
-22.2 C (-8.0 F)
1990
-14.4 C (6.1 F)
1991
-12.8 C (9.0 F)
1992
-11.7 C (10.9 F)
1993
-10.0 C (14.0 F)
1994
-10.6 C (12.9 F)
1995
-10.6 C (12.9 F)
1996
-16.7 C (1.9 F)
1997
-10.0 C (14.0 F)
1998
-11.1 C (12.0 F)
1999
-9.4 C (15.1 F)
2000
-8.3 C (17.1 F)
2001
-6.7 C (19.9 F)
2002
-11.7 C (10.9 F)
2003
-10.0 C (14.0 F)
2004
-12.8 C (9.0 F)
2005
-13.9 C (7.0 F)
2006
-8.9 C (16.0 F)
2010
n/a
2011
n/a
2012
n/a
2013
n/a
2014
n/a
2015
n/a
2016
n/a
2017
n/a
2018
n/a
2019
n/a
2020
n/a
2021
n/a
2022
n/a
2023
n/a
2024
n/a
2025
n/a
2026
n/a
Wettest day (Rx1day)
The wettest day of the year at Seymour 3NW, 1905 to 2026. The record is 157.5 mm (6.2 in) in 1989, marked on the chart; the median year is 68.6 mm (2.7 in).
Wettest day (Rx1day) at Seymour 3NW by year
Year
Wettest day (Rx1day)
1905
69.3 mm (2.7 in)
1906
75.7 mm (3.0 in)
1908
31.2 mm (1.2 in)
1909
50.8 mm (2.0 in)
1910
84.3 mm (3.3 in)
1911
101.6 mm (4.0 in)
1912
54.9 mm (2.2 in)
1913
78.7 mm (3.1 in)
1914
63.5 mm (2.5 in)
1915
101.9 mm (4.0 in)
1923
63.5 mm (2.5 in)
1924
69.9 mm (2.8 in)
1925
71.9 mm (2.8 in)
1926
76.2 mm (3.0 in)
1927
68.6 mm (2.7 in)
1928
25.9 mm (1.0 in)
1929
69.1 mm (2.7 in)
1930
68.6 mm (2.7 in)
1931
75.2 mm (3.0 in)
1932
97.3 mm (3.8 in)
1933
54.9 mm (2.2 in)
1934
65.3 mm (2.6 in)
1935
50.3 mm (2.0 in)
1936
93.0 mm (3.7 in)
1937
43.4 mm (1.7 in)
1938
73.4 mm (2.9 in)
1939
67.6 mm (2.7 in)
1940
47.5 mm (1.9 in)
1941
157.2 mm (6.2 in)
1942
76.5 mm (3.0 in)
1943
38.4 mm (1.5 in)
1944
65.5 mm (2.6 in)
1945
45.5 mm (1.8 in)
1946
44.5 mm (1.8 in)
1947
36.8 mm (1.4 in)
1948
59.4 mm (2.3 in)
1949
61.0 mm (2.4 in)
1950
66.0 mm (2.6 in)
1951
87.4 mm (3.4 in)
1952
30.5 mm (1.2 in)
1953
101.6 mm (4.0 in)
1954
64.0 mm (2.5 in)
1955
88.9 mm (3.5 in)
1956
36.8 mm (1.4 in)
1957
59.7 mm (2.4 in)
1958
62.5 mm (2.5 in)
1959
82.3 mm (3.2 in)
1960
83.3 mm (3.3 in)
1961
115.6 mm (4.6 in)
1962
55.4 mm (2.2 in)
1963
44.7 mm (1.8 in)
1964
65.3 mm (2.6 in)
1965
59.4 mm (2.3 in)
1966
78.2 mm (3.1 in)
1967
113.8 mm (4.5 in)
1968
95.3 mm (3.8 in)
1969
81.3 mm (3.2 in)
1970
36.8 mm (1.4 in)
1971
48.8 mm (1.9 in)
1972
73.2 mm (2.9 in)
1973
50.0 mm (2.0 in)
1974
58.9 mm (2.3 in)
1975
64.5 mm (2.5 in)
1976
48.8 mm (1.9 in)
1977
48.5 mm (1.9 in)
1978
106.7 mm (4.2 in)
1979
31.0 mm (1.2 in)
1980
97.5 mm (3.8 in)
1981
83.8 mm (3.3 in)
1982
108.0 mm (4.3 in)
1983
46.5 mm (1.8 in)
1984
36.6 mm (1.4 in)
1985
77.2 mm (3.0 in)
1986
129.5 mm (5.1 in)
1987
59.9 mm (2.4 in)
1988
97.0 mm (3.8 in)
1989
157.5 mm (6.2 in)
1990
79.2 mm (3.1 in)
1991
71.1 mm (2.8 in)
1992
55.9 mm (2.2 in)
1993
62.2 mm (2.4 in)
1994
94.0 mm (3.7 in)
1995
68.1 mm (2.7 in)
1996
50.8 mm (2.0 in)
1997
56.1 mm (2.2 in)
1998
69.9 mm (2.8 in)
1999
55.9 mm (2.2 in)
2000
99.1 mm (3.9 in)
2001
127.3 mm (5.0 in)
2002
86.9 mm (3.4 in)
2003
63.2 mm (2.5 in)
2004
145.8 mm (5.7 in)
2005
89.9 mm (3.5 in)
2006
38.9 mm (1.5 in)
2010
11.7 mm (0.5 in)
2011
96.0 mm (3.8 in)
2012
47.0 mm (1.9 in)
2013
65.3 mm (2.6 in)
2014
32.0 mm (1.3 in)
2015
114.0 mm (4.5 in)
2016
89.9 mm (3.5 in)
2017
66.3 mm (2.6 in)
2018
93.5 mm (3.7 in)
2019
78.7 mm (3.1 in)
2020
150.6 mm (5.9 in)
2021
64.0 mm (2.5 in)
2022
68.6 mm (2.7 in)
2023
36.1 mm (1.4 in)
2024
87.6 mm (3.4 in)
2025
88.9 mm (3.5 in)
2026
84.6 mm (3.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Seymour 3NW, 1905 to 2026. The record is 220.2 mm (8.7 in) in 2005, marked on the chart; the median year is 103.9 mm (4.1 in).
Wettest five days (Rx5day) at Seymour 3NW by year
Year
Wettest five days (Rx5day)
1905
157.0 mm (6.2 in)
1906
97.1 mm (3.8 in)
1908
66.8 mm (2.6 in)
1909
94.9 mm (3.7 in)
1910
84.8 mm (3.3 in)
1911
110.5 mm (4.4 in)
1912
71.4 mm (2.8 in)
1913
94.5 mm (3.7 in)
1914
145.6 mm (5.7 in)
1915
181.6 mm (7.1 in)
1923
76.5 mm (3.0 in)
1924
76.3 mm (3.0 in)
1925
100.3 mm (3.9 in)
1926
77.7 mm (3.1 in)
1927
76.2 mm (3.0 in)
1928
28.5 mm (1.1 in)
1929
148.7 mm (5.9 in)
1930
125.0 mm (4.9 in)
1931
103.9 mm (4.1 in)
1932
103.7 mm (4.1 in)
1933
117.4 mm (4.6 in)
1934
112.0 mm (4.4 in)
1935
88.1 mm (3.5 in)
1936
132.6 mm (5.2 in)
1937
67.0 mm (2.6 in)
1938
125.2 mm (4.9 in)
1939
74.4 mm (2.9 in)
1940
97.3 mm (3.8 in)
1941
208.3 mm (8.2 in)
1942
125.5 mm (4.9 in)
1943
72.4 mm (2.9 in)
1944
89.1 mm (3.5 in)
1945
84.6 mm (3.3 in)
1946
79.3 mm (3.1 in)
1947
86.1 mm (3.4 in)
1948
107.4 mm (4.2 in)
1949
96.0 mm (3.8 in)
1950
108.9 mm (4.3 in)
1951
92.4 mm (3.6 in)
1952
49.0 mm (1.9 in)
1953
125.0 mm (4.9 in)
1954
87.3 mm (3.4 in)
1955
114.8 mm (4.5 in)
1956
63.8 mm (2.5 in)
1957
116.4 mm (4.6 in)
1958
105.2 mm (4.1 in)
1959
105.1 mm (4.1 in)
1960
102.6 mm (4.0 in)
1961
122.7 mm (4.8 in)
1962
163.1 mm (6.4 in)
1963
87.7 mm (3.5 in)
1964
116.3 mm (4.6 in)
1965
70.3 mm (2.8 in)
1966
94.5 mm (3.7 in)
1967
120.4 mm (4.7 in)
1968
97.5 mm (3.8 in)
1969
104.5 mm (4.1 in)
1970
71.1 mm (2.8 in)
1971
82.4 mm (3.2 in)
1972
153.2 mm (6.0 in)
1973
67.3 mm (2.6 in)
1974
100.0 mm (3.9 in)
1975
90.9 mm (3.6 in)
1976
93.6 mm (3.7 in)
1977
76.2 mm (3.0 in)
1978
187.4 mm (7.4 in)
1979
80.8 mm (3.2 in)
1980
157.2 mm (6.2 in)
1981
104.1 mm (4.1 in)
1982
136.7 mm (5.4 in)
1983
126.0 mm (5.0 in)
1984
50.8 mm (2.0 in)
1985
125.5 mm (4.9 in)
1986
195.0 mm (7.7 in)
1987
86.6 mm (3.4 in)
1988
131.6 mm (5.2 in)
1989
168.2 mm (6.6 in)
1990
163.8 mm (6.4 in)
1991
110.5 mm (4.4 in)
1992
136.6 mm (5.4 in)
1993
72.7 mm (2.9 in)
1994
106.9 mm (4.2 in)
1995
143.3 mm (5.6 in)
1996
154.2 mm (6.1 in)
1997
73.4 mm (2.9 in)
1998
85.1 mm (3.4 in)
1999
106.7 mm (4.2 in)
2000
115.9 mm (4.6 in)
2001
137.0 mm (5.4 in)
2002
124.5 mm (4.9 in)
2003
98.9 mm (3.9 in)
2004
205.3 mm (8.1 in)
2005
220.2 mm (8.7 in)
2006
41.7 mm (1.6 in)
2010
19.1 mm (0.8 in)
2011
98.0 mm (3.9 in)
2012
62.8 mm (2.5 in)
2013
142.3 mm (5.6 in)
2014
59.4 mm (2.3 in)
2015
164.6 mm (6.5 in)
2016
93.3 mm (3.7 in)
2017
117.0 mm (4.6 in)
2018
162.1 mm (6.4 in)
2019
88.9 mm (3.5 in)
2020
196.8 mm (7.7 in)
2021
104.9 mm (4.1 in)
2022
70.4 mm (2.8 in)
2023
59.7 mm (2.4 in)
2024
188.0 mm (7.4 in)
2025
151.9 mm (6.0 in)
2026
105.7 mm (4.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Seymour 3NW, 1905 to 2026. The record is 82 days in 2011, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at Seymour 3NW by year
Year
Longest dry spell (CDD)
1905
23 days
1906
32 days
1908
32 days
1909
49 days
1910
56 days
1911
44 days
1912
42 days
1913
42 days
1914
61 days
1915
43 days
1923
72 days
1924
42 days
1925
72 days
1926
38 days
1927
39 days
1928
27 days
1929
26 days
1930
55 days
1931
26 days
1932
55 days
1933
29 days
1934
67 days
1935
18 days
1936
38 days
1937
30 days
1938
43 days
1939
25 days
1940
46 days
1941
23 days
1942
29 days
1943
74 days
1944
33 days
1945
51 days
1946
24 days
1947
48 days
1948
42 days
1949
38 days
1950
63 days
1951
34 days
1952
51 days
1953
34 days
1954
68 days
1955
56 days
1956
39 days
1957
33 days
1958
42 days
1959
46 days
1960
41 days
1961
33 days
1962
30 days
1963
36 days
1964
44 days
1965
44 days
1966
25 days
1967
42 days
1968
29 days
1969
38 days
1970
49 days
1971
51 days
1972
40 days
1973
27 days
1974
32 days
1975
31 days
1976
66 days
1977
50 days
1978
34 days
1979
22 days
1980
31 days
1981
31 days
1982
29 days
1983
26 days
1984
29 days
1985
27 days
1986
33 days
1987
37 days
1988
36 days
1989
60 days
1990
44 days
1991
56 days
1992
23 days
1993
27 days
1994
28 days
1995
44 days
1996
75 days
1997
26 days
1998
29 days
1999
33 days
2000
30 days
2001
47 days
2002
28 days
2003
47 days
2004
25 days
2005
50 days
2006
27 days
2010
23 days
2011
82 days
2012
33 days
2013
31 days
2014
35 days
2015
35 days
2016
36 days
2017
40 days
2018
30 days
2019
46 days
2020
41 days
2021
55 days
2022
33 days
2023
30 days
2024
40 days
2025
37 days
2026
54 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
63 years with a frost
Across 63 years with a frost, the median last spring frost at Seymour 3NW falls on 4 April and the median first autumn frost on 4 November, which leaves a median of 218 days between them.
In 1970 to 2005 the median growing season was 220 days. That is 8 days more than in 1909 to 1965.
Fitted over all years, the growing season changes by +1.6 days per decade at this station.
Frost dates and growing season at Seymour 3NW
Measure
Median, all years
Earliest period (1909 to 1965)
Recent period (1970 to 2005)
Recent against earliest
Fitted trend
Last spring frost
4 April
5 April
3 April
2 days earlier
-1.4 days per decade
First autumn frost
4 November
2 November
6 November
4 days later
+0.2 days per decade
Growing days
218 days
212 days
220 days
8 days more
+1.6 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
101 years, 1909 to 2025
A day with at least 68.0 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 159.6 mm (6.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Seymour 3NW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
68.0 mm (2.7 in)
5 years
92.5 mm (3.6 in)
10 years
108.7 mm (4.3 in)
25 years
129.2 mm (5.1 in)
50 years
144.5 mm (5.7 in)
100 years
159.6 mm (6.3 in)
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 101 years of values from 1909 to 2025.
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: 157.5 mm (6.2 in) in 1989; 157.2 mm (6.2 in) in 1941; 150.6 mm (5.9 in) in 2020.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Seymour 3NW, at 1961. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1961 ran 0.4 C (0.7 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Seymour 3NW, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1961
+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 Seymour 3NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Seymour 3NW 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.