Record envelope, standing records and threshold days for Westhope (USC00329333), North Dakota, United States, with 109 years of record.
Key Facts for Westhope
Westhope (USC00329333) is a weather station in North Dakota, United States at 48.91 latitude and -101.02 longitude, 458 m (1,502 ft) above sea level.
The station reports from 1904 to 2012, 109 years of record.
1,464 records set at Westhope still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Westhope set a daily record precipitation of 4.3 mm (0.17 in) on 22 November 2012.
About the Station
Location: North Dakota, United States, 48.91 latitude, -101.02 longitude.
Elevation: 458 m (1,502 ft).
Period of record: 1904 to 2012, 109 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 Westhope. 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 Westhope, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.8 C (55.0 F)
-47.2 C (-53.0 F)
n/a
n/a
Feb
17.2 C (63.0 F)
-46.1 C (-51.0 F)
n/a
n/a
Mar
25.0 C (77.0 F)
-39.4 C (-38.9 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-25.0 C (-13.0 F)
n/a
n/a
May
41.1 C (106.0 F)
-11.1 C (12.0 F)
n/a
n/a
Jun
41.7 C (107.1 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
43.9 C (111.0 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
40.0 C (104.0 F)
-11.7 C (10.9 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-34.4 C (-29.9 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-41.1 C (-42.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Westhope still stand. 1931 holds the most, with 38.
Standing records at Westhope by the year they were set
Year set
Standing records
1904
2
1905
20
1907
8
1908
12
1909
15
1910
37
1911
24
1912
17
1913
14
1914
18
1915
19
1916
22
1917
28
1918
24
1919
32
1920
12
1921
7
1922
12
1923
33
1924
16
1925
16
1926
13
1927
17
1928
19
1929
12
1930
16
1931
38
1932
21
1933
16
1934
23
1935
10
1936
38
1937
11
1938
14
1939
20
1940
16
1941
8
1942
18
1943
8
1944
6
1945
8
1946
10
1947
12
1948
10
1949
9
1950
17
1951
7
1952
11
1953
9
1954
12
1955
9
1956
6
1957
6
1958
14
1959
8
1960
7
1961
5
1962
13
1963
18
1964
20
1965
10
1966
18
1967
14
1968
7
1969
11
1970
2
1971
2
1972
12
1973
8
1974
8
1975
7
1976
9
1977
23
1978
15
1979
8
1980
12
1981
9
1982
4
1983
22
1984
13
1985
14
1986
9
1987
12
1988
25
1989
26
1990
9
1991
26
1992
12
1993
10
1994
9
1995
4
1996
10
1997
10
1998
7
1999
12
2000
13
2001
10
2002
10
2003
15
2004
10
2005
8
2006
7
2007
10
2008
4
2009
6
2010
7
2011
8
2012
24
All-Time Record Progression
2 new records
2 all-time records were set at Westhope between 20 July 1996 and 4 July 2000. Each dot is a new record.
When Westhope set new all-time records
Date
Kind
Detail
1996-07-20
Record daily precipitation
Record daily precipitation 88.4 mm (3.5 in)
2000-07-04
Record daily precipitation
Record daily precipitation 90.2 mm (3.6 in)
Wettest Day of Each Month
Jul: 90.2 mm (3.6 in)
The wettest day on record for each calendar month at Westhope. The most was 90.2 mm (3.6 in) on 4 July 2000.
Record daily precipitation for each month at Westhope
Month
Record daily precipitation (mm)
Date
Jan
29.2 mm (1.1 in)
25 January 1920
Feb
33.5 mm (1.3 in)
26 February 1998
Mar
36.1 mm (1.4 in)
17 March 1943
Apr
38.1 mm (1.5 in)
22 April 1932
May
52.1 mm (2.1 in)
11 May 2004
Jun
85.6 mm (3.4 in)
30 June 1935
Jul
90.2 mm (3.6 in)
4 July 2000
Aug
62.2 mm (2.4 in)
3 August 1911
Sep
73.7 mm (2.9 in)
1 September 1973
Oct
45.5 mm (1.8 in)
3 October 1911
Nov
61.0 mm (2.4 in)
2 November 1919
Dec
25.4 mm (1.0 in)
19 December 1937
Period of Record Coverage
1904 to 2012
Complete yearUnder 90 percent of days
109 years of record at Westhope, 1904 to 2012. 14 years have data for under 90 percent of days and are left out of rankings: 1904, 1905, 1906, 1907, 1908, 1910, 1911, 1914 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 88 complete years at Westhope, 1909 to 2011. Blue stripes are years cooler than the station's own mean of 3.8 C (38.8 F); red stripes are warmer. The coolest year was 1916, at 0.5 C (32.9 F), and the warmest was 1987, at 6.9 C (44.4 F). The strongest colour marks a difference of 3.4 C (6.1 F).
Annual mean temperature at Westhope as warming stripes, 1909 to 2011
Year
Annual mean temperature
Difference from the station mean
1909
2.0 C
-1.81 C
1912
2.6 C
-1.15 C
1913
3.1 C
-0.67 C
1915
3.4 C
-0.40 C
1916
0.5 C
-3.30 C
1917
1.4 C
-2.43 C
1918
3.2 C
-0.60 C
1919
2.7 C
-1.13 C
1920
3.2 C
-0.54 C
1921
4.4 C
+0.61 C
1922
3.5 C
-0.25 C
1923
4.0 C
+0.22 C
1925
3.9 C
+0.15 C
1926
3.6 C
-0.20 C
1927
2.0 C
-1.83 C
1928
4.4 C
+0.61 C
1930
4.1 C
+0.28 C
1931
6.8 C
+3.03 C
1932
4.1 C
+0.27 C
1933
4.4 C
+0.63 C
1934
5.6 C
+1.80 C
1935
2.5 C
-1.29 C
1938
4.7 C
+0.92 C
1940
3.9 C
+0.16 C
1941
4.0 C
+0.22 C
1942
3.9 C
+0.15 C
1943
3.0 C
-0.74 C
1944
3.9 C
+0.16 C
1945
2.6 C
-1.18 C
1946
3.2 C
-0.59 C
1947
2.8 C
-0.98 C
1948
2.8 C
-0.94 C
1949
3.0 C
-0.77 C
1951
1.1 C
-2.65 C
1953
4.6 C
+0.82 C
1954
3.6 C
-0.21 C
1955
2.0 C
-1.78 C
1956
2.6 C
-1.14 C
1957
3.5 C
-0.26 C
1958
4.1 C
+0.30 C
1959
3.1 C
-0.72 C
1960
3.1 C
-0.64 C
1961
4.4 C
+0.62 C
1962
3.7 C
-0.05 C
1963
4.6 C
+0.86 C
1964
3.3 C
-0.46 C
1965
2.4 C
-1.38 C
1966
2.2 C
-1.55 C
1967
3.1 C
-0.70 C
1968
3.4 C
-0.38 C
1969
2.8 C
-0.95 C
1971
3.5 C
-0.33 C
1972
2.6 C
-1.18 C
1973
5.0 C
+1.19 C
1976
4.4 C
+0.63 C
1977
4.8 C
+1.00 C
1978
3.0 C
-0.83 C
1979
2.2 C
-1.54 C
1980
4.3 C
+0.49 C
1981
5.9 C
+2.09 C
1982
2.9 C
-0.87 C
1983
4.9 C
+1.11 C
1984
4.7 C
+0.91 C
1985
3.1 C
-0.73 C
1987
6.9 C
+3.09 C
1988
5.2 C
+1.38 C
1989
3.3 C
-0.47 C
1990
4.9 C
+1.14 C
1991
4.7 C
+0.94 C
1992
4.5 C
+0.68 C
1993
3.5 C
-0.29 C
1994
4.1 C
+0.33 C
1995
3.5 C
-0.28 C
1996
1.9 C
-1.91 C
1997
4.8 C
+0.98 C
1998
5.5 C
+1.71 C
1999
5.6 C
+1.86 C
2000
4.6 C
+0.82 C
2001
5.3 C
+1.48 C
2002
4.4 C
+0.59 C
2003
4.2 C
+0.43 C
2004
4.1 C
+0.27 C
2005
5.2 C
+1.44 C
2006
6.4 C
+2.59 C
2007
5.2 C
+1.39 C
2008
3.6 C
-0.19 C
2010
4.7 C
+0.90 C
2011
4.9 C
+1.12 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1909 to 2011. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 88 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Westhope
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.2) per decade
0.3 F (0.2 to 0.4) per decade
1909 to 2011
88
Rise
Mean daily maximum
0.08 C (-0.01 to 0.17) per decade
0.14 F (-0.03 to 0.30) per decade
1909 to 2011
88
Not clearly different from zero
Mean daily minimum
0.3 C (0.2 to 0.3) per decade
0.5 F (0.3 to 0.6) per decade
1909 to 2011
88
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
1904 to 2012
Yearly extremes at Westhope: 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)
1931
36.7 C (98.1 F)
109
Coldest night (TNn)
-47.2 C (-53.0 F)
1916
-37.2 C (-35.0 F)
109
Wettest day (Rx1day)
90.2 mm (3.6 in)
2000
39.4 mm (1.6 in)
109
Wettest five days (Rx5day)
169.9 mm (6.7 in)
1935
57.8 mm (2.3 in)
108
Longest dry spell (CDD)
86 days
1918
32 days
109
Hottest day (TXx)
The hottest day of the year at Westhope, 1904 to 2012. The record is 43.9 C (111.0 F) in 1931, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Westhope by year
Year
Hottest day (TXx)
1904
34.4 C (93.9 F)
1905
35.6 C (96.1 F)
1906
27.2 C (81.0 F)
1907
36.7 C (98.1 F)
1908
35.0 C (95.0 F)
1909
36.7 C (98.1 F)
1910
41.1 C (106.0 F)
1911
38.9 C (102.0 F)
1912
38.9 C (102.0 F)
1913
37.8 C (100.0 F)
1914
37.2 C (99.0 F)
1915
33.9 C (93.0 F)
1916
35.6 C (96.1 F)
1917
38.9 C (102.0 F)
1918
36.7 C (98.1 F)
1919
39.4 C (102.9 F)
1920
36.7 C (98.1 F)
1921
36.7 C (98.1 F)
1922
35.0 C (95.0 F)
1923
36.1 C (97.0 F)
1924
34.4 C (93.9 F)
1925
37.8 C (100.0 F)
1926
38.9 C (102.0 F)
1927
33.3 C (91.9 F)
1928
37.8 C (100.0 F)
1929
38.9 C (102.0 F)
1930
38.9 C (102.0 F)
1931
43.9 C (111.0 F)
1932
41.1 C (106.0 F)
1933
40.0 C (104.0 F)
1934
41.1 C (106.0 F)
1935
35.0 C (95.0 F)
1936
43.3 C (109.9 F)
1937
40.0 C (104.0 F)
1938
36.7 C (98.1 F)
1939
20.6 C (69.1 F)
1940
36.7 C (98.1 F)
1941
36.7 C (98.1 F)
1942
37.8 C (100.0 F)
1943
32.2 C (90.0 F)
1944
35.0 C (95.0 F)
1945
36.7 C (98.1 F)
1946
38.3 C (100.9 F)
1947
38.9 C (102.0 F)
1948
35.0 C (95.0 F)
1949
41.1 C (106.0 F)
1950
33.3 C (91.9 F)
1951
36.7 C (98.1 F)
1952
37.8 C (100.0 F)
1953
33.9 C (93.0 F)
1954
34.4 C (93.9 F)
1955
35.6 C (96.1 F)
1956
36.7 C (98.1 F)
1957
37.8 C (100.0 F)
1958
40.0 C (104.0 F)
1959
38.3 C (100.9 F)
1960
40.0 C (104.0 F)
1961
38.9 C (102.0 F)
1962
33.9 C (93.0 F)
1963
36.7 C (98.1 F)
1964
33.9 C (93.0 F)
1965
35.6 C (96.1 F)
1966
34.4 C (93.9 F)
1967
36.1 C (97.0 F)
1968
35.6 C (96.1 F)
1969
36.1 C (97.0 F)
1970
35.0 C (95.0 F)
1971
37.2 C (99.0 F)
1972
35.0 C (95.0 F)
1973
33.9 C (93.0 F)
1974
33.9 C (93.0 F)
1975
35.6 C (96.1 F)
1976
37.2 C (99.0 F)
1977
36.7 C (98.1 F)
1978
37.2 C (99.0 F)
1979
37.8 C (100.0 F)
1980
37.8 C (100.0 F)
1981
36.7 C (98.1 F)
1982
34.4 C (93.9 F)
1983
36.7 C (98.1 F)
1984
37.2 C (99.0 F)
1985
33.3 C (91.9 F)
1986
33.9 C (93.0 F)
1987
36.1 C (97.0 F)
1988
39.4 C (102.9 F)
1989
38.3 C (100.9 F)
1990
36.7 C (98.1 F)
1991
37.8 C (100.0 F)
1992
36.7 C (98.1 F)
1993
34.4 C (93.9 F)
1994
36.1 C (97.0 F)
1995
36.1 C (97.0 F)
1996
35.0 C (95.0 F)
1997
33.9 C (93.0 F)
1998
36.7 C (98.1 F)
1999
34.4 C (93.9 F)
2000
34.4 C (93.9 F)
2001
35.6 C (96.1 F)
2002
35.0 C (95.0 F)
2003
37.8 C (100.0 F)
2004
32.8 C (91.0 F)
2005
35.0 C (95.0 F)
2006
36.1 C (97.0 F)
2007
38.3 C (100.9 F)
2008
35.6 C (96.1 F)
2009
35.6 C (96.1 F)
2010
34.4 C (93.9 F)
2011
35.6 C (96.1 F)
2012
36.7 C (98.1 F)
Coldest night (TNn)
The coldest night of the year at Westhope, 1904 to 2012. The record is -47.2 C (-53.0 F) in 1916, marked on the chart; the median year is -37.2 C (-35.0 F).
Coldest night (TNn) at Westhope by year
Year
Coldest night (TNn)
1904
-35.6 C (-32.1 F)
1905
-38.9 C (-38.0 F)
1906
1.7 C (35.1 F)
1907
-8.3 C (17.1 F)
1908
-35.0 C (-31.0 F)
1909
-42.2 C (-44.0 F)
1910
-36.1 C (-33.0 F)
1911
-38.9 C (-38.0 F)
1912
-41.7 C (-43.1 F)
1913
-39.4 C (-38.9 F)
1914
-37.8 C (-36.0 F)
1915
-42.2 C (-44.0 F)
1916
-47.2 C (-53.0 F)
1917
-41.7 C (-43.1 F)
1918
-40.0 C (-40.0 F)
1919
-38.3 C (-36.9 F)
1920
-41.1 C (-42.0 F)
1921
-32.8 C (-27.0 F)
1922
-40.6 C (-41.1 F)
1923
-40.0 C (-40.0 F)
1924
-38.9 C (-38.0 F)
1925
-31.7 C (-25.1 F)
1926
-33.3 C (-27.9 F)
1927
-38.9 C (-38.0 F)
1928
-34.4 C (-29.9 F)
1929
-40.0 C (-40.0 F)
1930
-37.8 C (-36.0 F)
1931
-30.0 C (-22.0 F)
1932
-35.6 C (-32.1 F)
1933
-38.9 C (-38.0 F)
1934
-41.1 C (-42.0 F)
1935
-38.9 C (-38.0 F)
1936
-46.1 C (-51.0 F)
1937
-33.3 C (-27.9 F)
1938
-38.3 C (-36.9 F)
1939
-32.8 C (-27.0 F)
1940
-37.2 C (-35.0 F)
1941
-38.3 C (-36.9 F)
1942
-34.4 C (-29.9 F)
1943
-40.0 C (-40.0 F)
1944
-37.8 C (-36.0 F)
1945
-33.3 C (-27.9 F)
1946
-37.8 C (-36.0 F)
1947
-37.2 C (-35.0 F)
1948
-39.4 C (-38.9 F)
1949
-41.1 C (-42.0 F)
1950
-41.7 C (-43.1 F)
1951
-40.0 C (-40.0 F)
1952
-36.1 C (-33.0 F)
1953
-33.9 C (-29.0 F)
1954
-41.7 C (-43.1 F)
1955
-36.7 C (-34.1 F)
1956
-33.3 C (-27.9 F)
1957
-33.9 C (-29.0 F)
1958
-37.2 C (-35.0 F)
1959
-37.8 C (-36.0 F)
1960
-35.6 C (-32.1 F)
1961
-35.0 C (-31.0 F)
1962
-40.6 C (-41.1 F)
1963
-36.7 C (-34.1 F)
1964
-34.4 C (-29.9 F)
1965
-36.1 C (-33.0 F)
1966
-39.4 C (-38.9 F)
1967
-38.9 C (-38.0 F)
1968
-40.0 C (-40.0 F)
1969
-37.2 C (-35.0 F)
1970
-38.9 C (-38.0 F)
1971
-37.8 C (-36.0 F)
1972
-38.3 C (-36.9 F)
1973
-35.0 C (-31.0 F)
1974
-36.1 C (-33.0 F)
1975
-32.8 C (-27.0 F)
1976
-34.4 C (-29.9 F)
1977
-37.8 C (-36.0 F)
1978
-40.6 C (-41.1 F)
1979
-37.2 C (-35.0 F)
1980
-36.1 C (-33.0 F)
1981
-33.3 C (-27.9 F)
1982
-37.2 C (-35.0 F)
1983
-40.6 C (-41.1 F)
1984
-35.0 C (-31.0 F)
1985
-37.2 C (-35.0 F)
1986
-36.7 C (-34.1 F)
1987
-25.0 C (-13.0 F)
1988
-35.6 C (-32.1 F)
1989
-40.6 C (-41.1 F)
1990
-40.0 C (-40.0 F)
1991
-37.2 C (-35.0 F)
1992
-32.8 C (-27.0 F)
1993
-37.2 C (-35.0 F)
1994
-40.0 C (-40.0 F)
1995
-31.7 C (-25.1 F)
1996
-42.2 C (-44.0 F)
1997
-36.7 C (-34.1 F)
1998
-35.0 C (-31.0 F)
1999
-35.6 C (-32.1 F)
2000
-33.3 C (-27.9 F)
2001
-29.4 C (-20.9 F)
2002
-32.2 C (-26.0 F)
2003
-35.6 C (-32.1 F)
2004
-41.7 C (-43.1 F)
2005
-38.9 C (-38.0 F)
2006
-31.7 C (-25.1 F)
2007
-35.0 C (-31.0 F)
2008
-36.7 C (-34.1 F)
2009
-39.4 C (-38.9 F)
2010
-36.1 C (-33.0 F)
2011
-33.3 C (-27.9 F)
2012
-29.4 C (-20.9 F)
Wettest day (Rx1day)
The wettest day of the year at Westhope, 1904 to 2012. The record is 90.2 mm (3.6 in) in 2000, marked on the chart; the median year is 39.4 mm (1.6 in).
Wettest day (Rx1day) at Westhope by year
Year
Wettest day (Rx1day)
1904
23.1 mm (0.9 in)
1905
35.1 mm (1.4 in)
1906
52.1 mm (2.1 in)
1907
25.1 mm (1.0 in)
1908
20.3 mm (0.8 in)
1909
22.9 mm (0.9 in)
1910
45.7 mm (1.8 in)
1911
62.2 mm (2.4 in)
1912
43.4 mm (1.7 in)
1913
37.1 mm (1.5 in)
1914
25.4 mm (1.0 in)
1915
42.4 mm (1.7 in)
1916
29.7 mm (1.2 in)
1917
25.4 mm (1.0 in)
1918
29.7 mm (1.2 in)
1919
61.0 mm (2.4 in)
1920
36.3 mm (1.4 in)
1921
42.4 mm (1.7 in)
1922
29.2 mm (1.1 in)
1923
46.0 mm (1.8 in)
1924
27.2 mm (1.1 in)
1925
23.9 mm (0.9 in)
1926
57.9 mm (2.3 in)
1927
37.1 mm (1.5 in)
1928
59.9 mm (2.4 in)
1929
25.9 mm (1.0 in)
1930
23.4 mm (0.9 in)
1931
24.9 mm (1.0 in)
1932
38.1 mm (1.5 in)
1933
28.7 mm (1.1 in)
1934
38.1 mm (1.5 in)
1935
85.6 mm (3.4 in)
1936
18.0 mm (0.7 in)
1937
74.7 mm (2.9 in)
1938
31.0 mm (1.2 in)
1939
6.9 mm (0.27 in)
1940
53.3 mm (2.1 in)
1941
58.2 mm (2.3 in)
1942
19.3 mm (0.8 in)
1943
61.0 mm (2.4 in)
1944
62.2 mm (2.4 in)
1945
31.5 mm (1.2 in)
1946
32.3 mm (1.3 in)
1947
39.4 mm (1.6 in)
1948
68.6 mm (2.7 in)
1949
83.8 mm (3.3 in)
1950
55.9 mm (2.2 in)
1951
49.3 mm (1.9 in)
1952
68.3 mm (2.7 in)
1953
24.4 mm (1.0 in)
1954
66.0 mm (2.6 in)
1955
27.9 mm (1.1 in)
1956
56.6 mm (2.2 in)
1957
47.0 mm (1.9 in)
1958
22.4 mm (0.9 in)
1959
44.2 mm (1.7 in)
1960
32.8 mm (1.3 in)
1961
23.1 mm (0.9 in)
1962
50.8 mm (2.0 in)
1963
42.4 mm (1.7 in)
1964
36.1 mm (1.4 in)
1965
39.9 mm (1.6 in)
1966
48.3 mm (1.9 in)
1967
17.3 mm (0.7 in)
1968
50.8 mm (2.0 in)
1969
41.1 mm (1.6 in)
1970
29.2 mm (1.1 in)
1971
55.9 mm (2.2 in)
1972
37.6 mm (1.5 in)
1973
73.7 mm (2.9 in)
1974
35.8 mm (1.4 in)
1975
57.4 mm (2.3 in)
1976
22.4 mm (0.9 in)
1977
26.4 mm (1.0 in)
1978
55.9 mm (2.2 in)
1979
25.4 mm (1.0 in)
1980
61.5 mm (2.4 in)
1981
31.0 mm (1.2 in)
1982
39.4 mm (1.6 in)
1983
39.4 mm (1.6 in)
1984
43.7 mm (1.7 in)
1985
28.4 mm (1.1 in)
1986
76.2 mm (3.0 in)
1987
55.9 mm (2.2 in)
1988
29.0 mm (1.1 in)
1989
34.0 mm (1.3 in)
1990
44.2 mm (1.7 in)
1991
40.6 mm (1.6 in)
1992
23.9 mm (0.9 in)
1993
63.0 mm (2.5 in)
1994
31.8 mm (1.3 in)
1995
39.4 mm (1.6 in)
1996
88.4 mm (3.5 in)
1997
30.0 mm (1.2 in)
1998
62.2 mm (2.4 in)
1999
52.1 mm (2.1 in)
2000
90.2 mm (3.6 in)
2001
26.4 mm (1.0 in)
2002
34.5 mm (1.4 in)
2003
29.2 mm (1.1 in)
2004
52.1 mm (2.1 in)
2005
49.5 mm (1.9 in)
2006
30.0 mm (1.2 in)
2007
42.2 mm (1.7 in)
2008
56.4 mm (2.2 in)
2009
51.3 mm (2.0 in)
2010
41.4 mm (1.6 in)
2011
38.4 mm (1.5 in)
2012
24.9 mm (1.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Westhope, 1904 to 2012. The record is 169.9 mm (6.7 in) in 1935, marked on the chart; the median year is 57.8 mm (2.3 in).
Wettest five days (Rx5day) at Westhope by year
Year
Wettest five days (Rx5day)
1904
53.3 mm (2.1 in)
1905
51.9 mm (2.0 in)
1906
64.9 mm (2.6 in)
1907
38.2 mm (1.5 in)
1908
31.2 mm (1.2 in)
1909
37.5 mm (1.5 in)
1910
57.7 mm (2.3 in)
1911
70.9 mm (2.8 in)
1912
52.5 mm (2.1 in)
1913
49.8 mm (2.0 in)
1914
54.5 mm (2.1 in)
1915
63.8 mm (2.5 in)
1916
49.0 mm (1.9 in)
1917
43.2 mm (1.7 in)
1918
42.4 mm (1.7 in)
1919
63.5 mm (2.5 in)
1920
51.4 mm (2.0 in)
1921
63.4 mm (2.5 in)
1922
48.0 mm (1.9 in)
1923
63.2 mm (2.5 in)
1924
66.8 mm (2.6 in)
1925
n/a
1926
74.2 mm (2.9 in)
1927
49.8 mm (2.0 in)
1928
98.7 mm (3.9 in)
1929
27.7 mm (1.1 in)
1930
18.5 mm (0.7 in)
1931
36.3 mm (1.4 in)
1932
40.4 mm (1.6 in)
1933
39.4 mm (1.6 in)
1934
41.5 mm (1.6 in)
1935
169.9 mm (6.7 in)
1936
35.6 mm (1.4 in)
1937
82.6 mm (3.3 in)
1938
57.9 mm (2.3 in)
1939
7.4 mm (0.29 in)
1940
55.6 mm (2.2 in)
1941
46.0 mm (1.8 in)
1942
29.7 mm (1.2 in)
1943
99.9 mm (3.9 in)
1944
71.2 mm (2.8 in)
1945
56.4 mm (2.2 in)
1946
43.7 mm (1.7 in)
1947
95.5 mm (3.8 in)
1948
83.4 mm (3.3 in)
1949
84.3 mm (3.3 in)
1950
71.6 mm (2.8 in)
1951
62.8 mm (2.5 in)
1952
70.6 mm (2.8 in)
1953
28.0 mm (1.1 in)
1954
85.4 mm (3.4 in)
1955
49.7 mm (2.0 in)
1956
77.9 mm (3.1 in)
1957
54.8 mm (2.2 in)
1958
41.5 mm (1.6 in)
1959
59.7 mm (2.4 in)
1960
44.7 mm (1.8 in)
1961
29.4 mm (1.2 in)
1962
115.0 mm (4.5 in)
1963
111.2 mm (4.4 in)
1964
70.4 mm (2.8 in)
1965
51.3 mm (2.0 in)
1966
63.3 mm (2.5 in)
1967
30.2 mm (1.2 in)
1968
62.2 mm (2.4 in)
1969
93.2 mm (3.7 in)
1970
55.6 mm (2.2 in)
1971
99.3 mm (3.9 in)
1972
45.0 mm (1.8 in)
1973
110.6 mm (4.4 in)
1974
67.1 mm (2.6 in)
1975
67.4 mm (2.7 in)
1976
45.8 mm (1.8 in)
1977
43.5 mm (1.7 in)
1978
75.2 mm (3.0 in)
1979
46.5 mm (1.8 in)
1980
72.2 mm (2.8 in)
1981
31.0 mm (1.2 in)
1982
65.1 mm (2.6 in)
1983
54.4 mm (2.1 in)
1984
54.0 mm (2.1 in)
1985
60.0 mm (2.4 in)
1986
103.1 mm (4.1 in)
1987
96.6 mm (3.8 in)
1988
44.9 mm (1.8 in)
1989
48.7 mm (1.9 in)
1990
65.1 mm (2.6 in)
1991
61.0 mm (2.4 in)
1992
30.9 mm (1.2 in)
1993
73.7 mm (2.9 in)
1994
46.0 mm (1.8 in)
1995
95.8 mm (3.8 in)
1996
95.0 mm (3.7 in)
1997
42.0 mm (1.7 in)
1998
88.7 mm (3.5 in)
1999
70.1 mm (2.8 in)
2000
108.2 mm (4.3 in)
2001
38.3 mm (1.5 in)
2002
69.3 mm (2.7 in)
2003
42.4 mm (1.7 in)
2004
77.8 mm (3.1 in)
2005
110.9 mm (4.4 in)
2006
42.4 mm (1.7 in)
2007
48.1 mm (1.9 in)
2008
90.2 mm (3.6 in)
2009
68.3 mm (2.7 in)
2010
84.5 mm (3.3 in)
2011
74.2 mm (2.9 in)
2012
32.7 mm (1.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Westhope, 1904 to 2012. The record is 86 days in 1918, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Westhope by year
Year
Longest dry spell (CDD)
1904
44 days
1905
30 days
1906
8 days
1907
19 days
1908
35 days
1909
23 days
1910
85 days
1911
61 days
1912
32 days
1913
42 days
1914
32 days
1915
42 days
1916
28 days
1917
49 days
1918
86 days
1919
73 days
1920
35 days
1921
24 days
1922
63 days
1923
24 days
1924
25 days
1925
2 days
1926
22 days
1927
21 days
1928
32 days
1929
14 days
1930
1 day
1931
17 days
1932
39 days
1933
33 days
1934
39 days
1935
34 days
1936
25 days
1937
25 days
1938
40 days
1939
13 days
1940
24 days
1941
29 days
1942
28 days
1943
55 days
1944
34 days
1945
40 days
1946
23 days
1947
23 days
1948
37 days
1949
27 days
1950
26 days
1951
24 days
1952
54 days
1953
36 days
1954
35 days
1955
27 days
1956
34 days
1957
26 days
1958
41 days
1959
31 days
1960
77 days
1961
52 days
1962
28 days
1963
39 days
1964
26 days
1965
52 days
1966
51 days
1967
24 days
1968
29 days
1969
47 days
1970
23 days
1971
44 days
1972
31 days
1973
35 days
1974
41 days
1975
35 days
1976
57 days
1977
58 days
1978
39 days
1979
27 days
1980
48 days
1981
34 days
1982
35 days
1983
40 days
1984
22 days
1985
36 days
1986
34 days
1987
47 days
1988
36 days
1989
34 days
1990
31 days
1991
29 days
1992
31 days
1993
38 days
1994
24 days
1995
17 days
1996
29 days
1997
61 days
1998
22 days
1999
28 days
2000
28 days
2001
41 days
2002
25 days
2003
18 days
2004
27 days
2005
49 days
2006
30 days
2007
40 days
2008
22 days
2009
33 days
2010
31 days
2011
5 days
2012
29 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
88 years with a frost
Across 88 years with a frost, the median last spring frost at Westhope falls on 20 May and the median first autumn frost on 17 September, which leaves a median of 121 days between them.
In 1980 to 2011 the median growing season was 131 days. That is 19 days more than in 1909 to 1946.
Fitted over all years, the growing season changes by +2.6 days per decade at this station.
Frost dates and growing season at Westhope
Measure
Median, all years
Earliest period (1909 to 1946)
Recent period (1980 to 2011)
Recent against earliest
Fitted trend
Last spring frost
20 May
28 May
16 May
12 days earlier
-1.4 days per decade
First autumn frost
17 September
16 September
21 September
5 days later
+1.2 days per decade
Growing days
121 days
112 days
131 days
19 days more
+2.6 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
83 years, 1909 to 2010
A day with at least 40.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 98.1 mm (3.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Westhope: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
40.4 mm (1.6 in)
5 years
55.4 mm (2.2 in)
10 years
65.6 mm (2.6 in)
25 years
78.5 mm (3.1 in)
50 years
88.3 mm (3.5 in)
100 years
98.1 mm (3.9 in)
Longer than the 83 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, 83 years of values from 1909 to 2010.
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: 90.2 mm (3.6 in) in 2000; 88.4 mm (3.5 in) in 1996; 85.6 mm (3.4 in) in 1935.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Westhope, at 1971. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1971 ran 0.3 C (0.5 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Westhope, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1971
+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 Westhope standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Westhope 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.