Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at White River. 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 White River, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
7.8 C (46.0 F)
-51.7 C (-61.1 F)
n/a
n/a
Feb
11.1 C (52.0 F)
-51.2 C (-60.2 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-45.6 C (-50.1 F)
n/a
n/a
Apr
27.2 C (81.0 F)
-35.0 C (-31.0 F)
n/a
n/a
May
33.9 C (93.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Jun
38.3 C (100.9 F)
-7.8 C (18.0 F)
n/a
n/a
Jul
37.8 C (100.0 F)
-4.4 C (24.1 F)
n/a
n/a
Aug
36.1 C (97.0 F)
-6.1 C (21.0 F)
n/a
n/a
Sep
32.8 C (91.0 F)
-10.0 C (14.0 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Nov
20.6 C (69.1 F)
-38.9 C (-38.0 F)
n/a
n/a
Dec
12.2 C (54.0 F)
-48.3 C (-54.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at White River still stand. 1930 holds the most, with 32.
Standing records at White River by the year they were set
Year set
Standing records
1888
2
1889
16
1890
9
1891
24
1892
22
1893
19
1894
24
1895
30
1896
26
1897
20
1898
12
1899
24
1900
30
1901
19
1902
17
1903
11
1904
11
1905
10
1906
21
1907
17
1908
18
1909
19
1910
16
1911
17
1912
13
1913
11
1914
21
1915
18
1916
16
1917
16
1918
22
1919
26
1920
22
1921
21
1922
27
1923
26
1924
13
1925
18
1926
17
1927
16
1928
11
1929
13
1930
32
1931
23
1932
21
1933
20
1934
19
1935
18
1936
19
1937
15
1938
15
1939
13
1940
28
1941
20
1942
21
1943
12
1944
16
1945
19
1946
17
1947
28
1948
10
1949
9
1950
8
1951
19
1952
8
1953
22
1954
16
1955
19
1956
21
1957
6
1958
11
1959
9
1960
6
1961
5
1962
13
1963
21
1964
15
1965
10
1966
13
1967
11
1968
11
1969
6
1970
10
1971
12
1972
10
1973
15
1974
14
1975
17
All-Time Record Progression
3 new records
3 all-time records were set at White River between 30 June 1931 and 4 August 1947. Each dot is a new record.
When White River set new all-time records
Date
Kind
Detail
1931-06-30
Record high maximum temperature
Record high maximum temperature 38.3 C (100.9 F)
1935-01-23
Record low minimum temperature
Record low minimum temperature -51.7 C (-61.1 F)
1947-08-04
Record high minimum temperature
Record high minimum temperature 23.3 C (73.9 F)
Wettest Day of Each Month
Aug: 101.9 mm (4.0 in)
The wettest day on record for each calendar month at White River. The most was 101.9 mm (4.0 in) on 13 August 1888.
Record daily precipitation for each month at White River
Month
Record daily precipitation (mm)
Date
Jan
30.5 mm (1.2 in)
24 January 1938
Feb
25.1 mm (1.0 in)
5 February 1971
Mar
40.1 mm (1.6 in)
11 March 1973
Apr
46.0 mm (1.8 in)
30 April 1942
May
42.9 mm (1.7 in)
23 May 1946
Jun
58.4 mm (2.3 in)
12 June 1911
Jul
76.5 mm (3.0 in)
15 July 1937
Aug
101.9 mm (4.0 in)
13 August 1888
Sep
91.9 mm (3.6 in)
14 September 1941
Oct
46.7 mm (1.8 in)
29 October 1946
Nov
72.1 mm (2.8 in)
2 November 1907
Dec
48.5 mm (1.9 in)
29 December 1889
Period of Record Coverage
1888 to 1976
Complete yearUnder 90 percent of days
89 years of record at White River, 1888 to 1976. 4 years have data for under 90 percent of days and are left out of rankings: 1888, 1912, 1913, 1976.
Cooler than the station meanWarmer than the station mean
One stripe for each of 83 complete years at White River, 1889 to 1975. Blue stripes are years cooler than the station's own mean of 0.3 C (32.5 F); red stripes are warmer. The coolest year was 1917, at -2.1 C (28.2 F), and the warmest was 1931, at 2.8 C (37.0 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at White River as warming stripes, 1889 to 1975
Year
Annual mean temperature
Difference from the station mean
1889
0.5 C
+0.20 C
1890
-0.1 C
-0.36 C
1891
1.0 C
+0.71 C
1892
-0.2 C
-0.47 C
1893
-1.3 C
-1.56 C
1894
0.8 C
+0.51 C
1895
-0.1 C
-0.36 C
1896
0.1 C
-0.21 C
1897
0.4 C
+0.13 C
1898
1.1 C
+0.78 C
1899
-0.1 C
-0.37 C
1900
1.2 C
+0.94 C
1901
0.7 C
+0.44 C
1902
1.1 C
+0.85 C
1903
-0.1 C
-0.36 C
1904
-1.0 C
-1.30 C
1905
0.2 C
-0.11 C
1907
-1.2 C
-1.52 C
1908
0.9 C
+0.66 C
1909
0.6 C
+0.33 C
1910
1.2 C
+0.94 C
1911
0.9 C
+0.58 C
1914
-0.6 C
-0.89 C
1915
1.0 C
+0.67 C
1916
-0.8 C
-1.05 C
1917
-2.1 C
-2.39 C
1918
-0.2 C
-0.44 C
1919
1.2 C
+0.87 C
1920
0.6 C
+0.28 C
1921
1.7 C
+1.41 C
1922
0.7 C
+0.45 C
1923
-0.4 C
-0.69 C
1924
-1.0 C
-1.30 C
1925
-0.4 C
-0.65 C
1926
-1.0 C
-1.26 C
1927
0.2 C
-0.12 C
1928
0.2 C
-0.04 C
1929
-1.2 C
-1.46 C
1930
0.9 C
+0.57 C
1931
2.8 C
+2.49 C
1932
0.6 C
+0.35 C
1933
-0.3 C
-0.56 C
1934
-0.3 C
-0.63 C
1935
-0.2 C
-0.53 C
1936
-0.8 C
-1.09 C
1937
0.9 C
+0.60 C
1938
1.0 C
+0.71 C
1939
0.3 C
+0.03 C
1940
0.5 C
+0.24 C
1941
1.6 C
+1.29 C
1942
0.7 C
+0.45 C
1943
-0.3 C
-0.54 C
1944
1.6 C
+1.36 C
1945
0.2 C
-0.06 C
1946
0.9 C
+0.61 C
1947
0.6 C
+0.35 C
1948
0.9 C
+0.62 C
1949
1.0 C
+0.72 C
1950
-1.1 C
-1.39 C
1952
1.4 C
+1.09 C
1953
1.8 C
+1.49 C
1954
0.6 C
+0.35 C
1955
1.4 C
+1.10 C
1956
0.0 C
-0.25 C
1957
0.2 C
-0.13 C
1958
0.5 C
+0.18 C
1959
0.2 C
-0.05 C
1960
0.5 C
+0.18 C
1961
1.0 C
+0.70 C
1962
0.0 C
-0.27 C
1963
-0.2 C
-0.47 C
1964
-0.2 C
-0.46 C
1965
-0.6 C
-0.90 C
1966
-0.2 C
-0.52 C
1967
-0.5 C
-0.79 C
1968
0.7 C
+0.42 C
1969
0.7 C
+0.37 C
1970
0.0 C
-0.30 C
1971
0.3 C
+0.01 C
1972
-1.2 C
-1.47 C
1973
1.5 C
+1.19 C
1974
-0.5 C
-0.78 C
1975
0.5 C
+0.17 C
The fitted trend in annual mean temperature here over 1889 to 1975 is 0.01 C (-0.06 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.03 F (-0.11 to 0.16) per decade. The slope is a straight line fitted to 83 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at White River
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.01 C (-0.06 to 0.09) per decade
0.03 F (-0.11 to 0.16) per decade
1889 to 1975
83
Not clearly different from zero
Mean daily maximum
-0.02 C (-0.09 to 0.06) per decade
-0.03 F (-0.17 to 0.10) per decade
1889 to 1975
83
Not clearly different from zero
Mean daily minimum
0.05 C (-0.04 to 0.13) per decade
0.1 F (-0.1 to 0.2) per decade
1889 to 1975
83
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
1886 to 1976
Yearly extremes at White River: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1931
31.1 C (88.0 F)
89
Coldest night (TNn)
-51.7 C (-61.1 F)
1935
-45.0 C (-49.0 F)
89
Wettest day (Rx1day)
101.9 mm (4.0 in)
1888
37.8 mm (1.5 in)
91
Wettest five days (Rx5day)
149.6 mm (5.9 in)
1927
61.0 mm (2.4 in)
91
Longest dry spell (CDD)
52 days
1892
17 days
91
Hottest day (TXx)
The hottest day of the year at White River, 1886 to 1976. The record is 38.3 C (100.9 F) in 1931, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at White River by year
Year
Hottest day (TXx)
1886
n/a
1887
n/a
1888
5.6 C (42.1 F)
1889
32.2 C (90.0 F)
1890
30.0 C (86.0 F)
1891
30.0 C (86.0 F)
1892
31.1 C (88.0 F)
1893
31.1 C (88.0 F)
1894
33.3 C (91.9 F)
1895
32.2 C (90.0 F)
1896
30.0 C (86.0 F)
1897
34.4 C (93.9 F)
1898
29.4 C (84.9 F)
1899
31.1 C (88.0 F)
1900
30.6 C (87.1 F)
1901
36.1 C (97.0 F)
1902
28.9 C (84.0 F)
1903
31.1 C (88.0 F)
1904
29.4 C (84.9 F)
1905
30.0 C (86.0 F)
1906
32.2 C (90.0 F)
1907
29.4 C (84.9 F)
1908
30.6 C (87.1 F)
1909
31.1 C (88.0 F)
1910
32.2 C (90.0 F)
1911
32.2 C (90.0 F)
1912
25.6 C (78.1 F)
1913
30.0 C (86.0 F)
1914
32.8 C (91.0 F)
1915
30.0 C (86.0 F)
1916
35.0 C (95.0 F)
1917
32.8 C (91.0 F)
1918
31.1 C (88.0 F)
1919
33.9 C (93.0 F)
1920
29.4 C (84.9 F)
1921
35.6 C (96.1 F)
1922
32.2 C (90.0 F)
1923
33.3 C (91.9 F)
1924
30.0 C (86.0 F)
1925
32.2 C (90.0 F)
1926
32.2 C (90.0 F)
1927
33.3 C (91.9 F)
1928
31.1 C (88.0 F)
1929
30.6 C (87.1 F)
1930
34.4 C (93.9 F)
1931
38.3 C (100.9 F)
1932
31.1 C (88.0 F)
1933
36.1 C (97.0 F)
1934
33.3 C (91.9 F)
1935
33.3 C (91.9 F)
1936
37.8 C (100.0 F)
1937
33.3 C (91.9 F)
1938
31.1 C (88.0 F)
1939
31.7 C (89.1 F)
1940
34.4 C (93.9 F)
1941
32.8 C (91.0 F)
1942
33.3 C (91.9 F)
1943
32.8 C (91.0 F)
1944
31.7 C (89.1 F)
1945
31.1 C (88.0 F)
1946
30.0 C (86.0 F)
1947
34.4 C (93.9 F)
1948
33.3 C (91.9 F)
1949
32.2 C (90.0 F)
1950
29.4 C (84.9 F)
1951
30.0 C (86.0 F)
1952
30.6 C (87.1 F)
1953
32.2 C (90.0 F)
1954
31.1 C (88.0 F)
1955
36.1 C (97.0 F)
1956
33.3 C (91.9 F)
1957
30.0 C (86.0 F)
1958
28.9 C (84.0 F)
1959
33.9 C (93.0 F)
1960
31.1 C (88.0 F)
1961
30.6 C (87.1 F)
1962
31.1 C (88.0 F)
1963
31.7 C (89.1 F)
1964
31.1 C (88.0 F)
1965
31.1 C (88.0 F)
1966
32.8 C (91.0 F)
1967
29.4 C (84.9 F)
1968
30.6 C (87.1 F)
1969
32.2 C (90.0 F)
1970
30.6 C (87.1 F)
1971
31.1 C (88.0 F)
1972
30.6 C (87.1 F)
1973
28.9 C (84.0 F)
1974
30.6 C (87.1 F)
1975
35.6 C (96.1 F)
1976
2.8 C (37.0 F)
Coldest night (TNn)
The coldest night of the year at White River, 1886 to 1976. The record is -51.7 C (-61.1 F) in 1935, marked on the chart; the median year is -45.0 C (-49.0 F).
Coldest night (TNn) at White River by year
Year
Coldest night (TNn)
1886
n/a
1887
n/a
1888
-34.4 C (-29.9 F)
1889
-42.2 C (-44.0 F)
1890
-45.6 C (-50.1 F)
1891
-45.6 C (-50.1 F)
1892
-46.1 C (-51.0 F)
1893
-48.3 C (-54.9 F)
1894
-47.8 C (-54.0 F)
1895
-51.2 C (-60.2 F)
1896
-45.0 C (-49.0 F)
1897
-48.3 C (-54.9 F)
1898
-46.1 C (-51.0 F)
1899
-48.9 C (-56.0 F)
1900
-46.1 C (-51.0 F)
1901
-45.0 C (-49.0 F)
1902
-45.6 C (-50.1 F)
1903
-46.7 C (-52.1 F)
1904
-44.4 C (-47.9 F)
1905
-44.4 C (-47.9 F)
1906
-46.1 C (-51.0 F)
1907
-50.0 C (-58.0 F)
1908
-43.9 C (-47.0 F)
1909
-44.4 C (-47.9 F)
1910
-42.8 C (-45.0 F)
1911
-44.4 C (-47.9 F)
1912
-50.0 C (-58.0 F)
1913
-41.1 C (-42.0 F)
1914
-48.9 C (-56.0 F)
1915
-48.9 C (-56.0 F)
1916
-46.1 C (-51.0 F)
1917
-46.1 C (-51.0 F)
1918
-46.7 C (-52.1 F)
1919
-46.1 C (-51.0 F)
1920
-44.4 C (-47.9 F)
1921
-42.8 C (-45.0 F)
1922
-45.0 C (-49.0 F)
1923
-45.6 C (-50.1 F)
1924
-49.4 C (-56.9 F)
1925
-45.6 C (-50.1 F)
1926
-41.7 C (-43.1 F)
1927
-45.6 C (-50.1 F)
1928
-46.7 C (-52.1 F)
1929
-45.6 C (-50.1 F)
1930
-45.6 C (-50.1 F)
1931
-40.6 C (-41.1 F)
1932
-44.4 C (-47.9 F)
1933
-48.3 C (-54.9 F)
1934
-47.2 C (-53.0 F)
1935
-51.7 C (-61.1 F)
1936
-43.3 C (-45.9 F)
1937
-42.2 C (-44.0 F)
1938
-46.7 C (-52.1 F)
1939
-46.7 C (-52.1 F)
1940
-45.6 C (-50.1 F)
1941
-40.6 C (-41.1 F)
1942
-46.1 C (-51.0 F)
1943
-47.8 C (-54.0 F)
1944
-42.2 C (-44.0 F)
1945
-43.9 C (-47.0 F)
1946
-42.8 C (-45.0 F)
1947
-39.4 C (-38.9 F)
1948
-45.6 C (-50.1 F)
1949
-40.0 C (-40.0 F)
1950
-45.6 C (-50.1 F)
1951
-46.7 C (-52.1 F)
1952
-43.3 C (-45.9 F)
1953
-45.0 C (-49.0 F)
1954
-44.4 C (-47.9 F)
1955
-43.3 C (-45.9 F)
1956
-41.7 C (-43.1 F)
1957
-47.2 C (-53.0 F)
1958
-43.3 C (-45.9 F)
1959
-43.9 C (-47.0 F)
1960
-41.7 C (-43.1 F)
1961
-43.3 C (-45.9 F)
1962
-43.3 C (-45.9 F)
1963
-42.8 C (-45.0 F)
1964
-43.3 C (-45.9 F)
1965
-43.3 C (-45.9 F)
1966
-48.3 C (-54.9 F)
1967
-46.1 C (-51.0 F)
1968
-43.3 C (-45.9 F)
1969
-39.4 C (-38.9 F)
1970
-44.4 C (-47.9 F)
1971
-45.0 C (-49.0 F)
1972
-44.4 C (-47.9 F)
1973
-41.1 C (-42.0 F)
1974
-45.0 C (-49.0 F)
1975
-43.9 C (-47.0 F)
1976
-45.0 C (-49.0 F)
Wettest day (Rx1day)
The wettest day of the year at White River, 1886 to 1976. The record is 101.9 mm (4.0 in) in 1888, marked on the chart; the median year is 37.8 mm (1.5 in).
Wettest day (Rx1day) at White River by year
Year
Wettest day (Rx1day)
1886
23.4 mm (0.9 in)
1887
26.2 mm (1.0 in)
1888
101.9 mm (4.0 in)
1889
48.5 mm (1.9 in)
1890
22.4 mm (0.9 in)
1891
74.7 mm (2.9 in)
1892
27.4 mm (1.1 in)
1893
29.7 mm (1.2 in)
1894
27.9 mm (1.1 in)
1895
29.2 mm (1.1 in)
1896
35.8 mm (1.4 in)
1897
25.4 mm (1.0 in)
1898
35.6 mm (1.4 in)
1899
23.1 mm (0.9 in)
1900
35.6 mm (1.4 in)
1901
26.9 mm (1.1 in)
1902
44.7 mm (1.8 in)
1903
30.2 mm (1.2 in)
1904
38.6 mm (1.5 in)
1905
35.1 mm (1.4 in)
1906
31.5 mm (1.2 in)
1907
72.1 mm (2.8 in)
1908
46.0 mm (1.8 in)
1909
39.6 mm (1.6 in)
1910
45.7 mm (1.8 in)
1911
59.9 mm (2.4 in)
1912
61.2 mm (2.4 in)
1913
15.2 mm (0.6 in)
1914
22.4 mm (0.9 in)
1915
33.5 mm (1.3 in)
1916
30.7 mm (1.2 in)
1917
26.9 mm (1.1 in)
1918
52.3 mm (2.1 in)
1919
33.3 mm (1.3 in)
1920
38.1 mm (1.5 in)
1921
49.3 mm (1.9 in)
1922
19.3 mm (0.8 in)
1923
34.3 mm (1.4 in)
1924
44.5 mm (1.8 in)
1925
26.9 mm (1.1 in)
1926
42.2 mm (1.7 in)
1927
66.8 mm (2.6 in)
1928
38.1 mm (1.5 in)
1929
34.8 mm (1.4 in)
1930
31.5 mm (1.2 in)
1931
30.5 mm (1.2 in)
1932
43.2 mm (1.7 in)
1933
37.1 mm (1.5 in)
1934
30.0 mm (1.2 in)
1935
62.0 mm (2.4 in)
1936
48.3 mm (1.9 in)
1937
76.5 mm (3.0 in)
1938
42.2 mm (1.7 in)
1939
30.0 mm (1.2 in)
1940
42.4 mm (1.7 in)
1941
91.9 mm (3.6 in)
1942
46.0 mm (1.8 in)
1943
33.0 mm (1.3 in)
1944
36.3 mm (1.4 in)
1945
60.7 mm (2.4 in)
1946
46.7 mm (1.8 in)
1947
42.2 mm (1.7 in)
1948
31.8 mm (1.3 in)
1949
33.3 mm (1.3 in)
1950
26.2 mm (1.0 in)
1951
40.6 mm (1.6 in)
1952
44.7 mm (1.8 in)
1953
41.9 mm (1.6 in)
1954
26.2 mm (1.0 in)
1955
38.6 mm (1.5 in)
1956
38.4 mm (1.5 in)
1957
61.0 mm (2.4 in)
1958
39.9 mm (1.6 in)
1959
73.7 mm (2.9 in)
1960
36.8 mm (1.4 in)
1961
49.5 mm (1.9 in)
1962
34.3 mm (1.4 in)
1963
45.2 mm (1.8 in)
1964
47.8 mm (1.9 in)
1965
29.2 mm (1.1 in)
1966
55.1 mm (2.2 in)
1967
37.8 mm (1.5 in)
1968
62.0 mm (2.4 in)
1969
22.4 mm (0.9 in)
1970
68.3 mm (2.7 in)
1971
35.1 mm (1.4 in)
1972
39.1 mm (1.5 in)
1973
41.9 mm (1.6 in)
1974
32.5 mm (1.3 in)
1975
37.6 mm (1.5 in)
1976
11.9 mm (0.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at White River, 1886 to 1976. The record is 149.6 mm (5.9 in) in 1927, marked on the chart; the median year is 61.0 mm (2.4 in).
Wettest five days (Rx5day) at White River by year
Year
Wettest five days (Rx5day)
1886
39.7 mm (1.6 in)
1887
44.2 mm (1.7 in)
1888
109.0 mm (4.3 in)
1889
68.5 mm (2.7 in)
1890
52.3 mm (2.1 in)
1891
85.9 mm (3.4 in)
1892
45.0 mm (1.8 in)
1893
51.6 mm (2.0 in)
1894
46.2 mm (1.8 in)
1895
53.3 mm (2.1 in)
1896
66.0 mm (2.6 in)
1897
52.3 mm (2.1 in)
1898
48.8 mm (1.9 in)
1899
52.4 mm (2.1 in)
1900
78.3 mm (3.1 in)
1901
40.1 mm (1.6 in)
1902
65.0 mm (2.6 in)
1903
65.5 mm (2.6 in)
1904
54.1 mm (2.1 in)
1905
57.5 mm (2.3 in)
1906
75.2 mm (3.0 in)
1907
73.7 mm (2.9 in)
1908
82.0 mm (3.2 in)
1909
64.5 mm (2.5 in)
1910
51.8 mm (2.0 in)
1911
93.9 mm (3.7 in)
1912
79.0 mm (3.1 in)
1913
36.0 mm (1.4 in)
1914
27.7 mm (1.1 in)
1915
52.3 mm (2.1 in)
1916
43.7 mm (1.7 in)
1917
58.4 mm (2.3 in)
1918
63.3 mm (2.5 in)
1919
50.3 mm (2.0 in)
1920
56.9 mm (2.2 in)
1921
76.8 mm (3.0 in)
1922
32.3 mm (1.3 in)
1923
91.2 mm (3.6 in)
1924
59.9 mm (2.4 in)
1925
51.8 mm (2.0 in)
1926
82.6 mm (3.3 in)
1927
149.6 mm (5.9 in)
1928
83.1 mm (3.3 in)
1929
53.1 mm (2.1 in)
1930
59.2 mm (2.3 in)
1931
61.0 mm (2.4 in)
1932
62.0 mm (2.4 in)
1933
55.4 mm (2.2 in)
1934
59.7 mm (2.4 in)
1935
70.1 mm (2.8 in)
1936
59.2 mm (2.3 in)
1937
94.6 mm (3.7 in)
1938
82.3 mm (3.2 in)
1939
48.3 mm (1.9 in)
1940
73.3 mm (2.9 in)
1941
111.7 mm (4.4 in)
1942
78.0 mm (3.1 in)
1943
39.9 mm (1.6 in)
1944
51.3 mm (2.0 in)
1945
70.3 mm (2.8 in)
1946
85.7 mm (3.4 in)
1947
57.7 mm (2.3 in)
1948
52.6 mm (2.1 in)
1949
63.0 mm (2.5 in)
1950
51.8 mm (2.0 in)
1951
74.7 mm (2.9 in)
1952
57.7 mm (2.3 in)
1953
57.9 mm (2.3 in)
1954
45.8 mm (1.8 in)
1955
78.0 mm (3.1 in)
1956
65.6 mm (2.6 in)
1957
94.3 mm (3.7 in)
1958
61.2 mm (2.4 in)
1959
90.5 mm (3.6 in)
1960
66.0 mm (2.6 in)
1961
76.2 mm (3.0 in)
1962
56.2 mm (2.2 in)
1963
65.0 mm (2.6 in)
1964
72.2 mm (2.8 in)
1965
55.8 mm (2.2 in)
1966
88.6 mm (3.5 in)
1967
47.2 mm (1.9 in)
1968
114.1 mm (4.5 in)
1969
37.9 mm (1.5 in)
1970
84.6 mm (3.3 in)
1971
55.4 mm (2.2 in)
1972
61.0 mm (2.4 in)
1973
72.7 mm (2.9 in)
1974
57.5 mm (2.3 in)
1975
73.9 mm (2.9 in)
1976
20.6 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at White River, 1886 to 1976. The record is 52 days in 1892, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at White River by year
Year
Longest dry spell (CDD)
1886
10 days
1887
23 days
1888
19 days
1889
18 days
1890
21 days
1891
39 days
1892
52 days
1893
13 days
1894
29 days
1895
22 days
1896
26 days
1897
16 days
1898
18 days
1899
14 days
1900
11 days
1901
29 days
1902
19 days
1903
20 days
1904
14 days
1905
14 days
1906
23 days
1907
20 days
1908
21 days
1909
18 days
1910
36 days
1911
23 days
1912
17 days
1913
13 days
1914
17 days
1915
24 days
1916
16 days
1917
19 days
1918
20 days
1919
14 days
1920
14 days
1921
14 days
1922
19 days
1923
21 days
1924
18 days
1925
21 days
1926
24 days
1927
13 days
1928
12 days
1929
16 days
1930
22 days
1931
13 days
1932
21 days
1933
15 days
1934
13 days
1935
12 days
1936
15 days
1937
12 days
1938
14 days
1939
21 days
1940
18 days
1941
18 days
1942
14 days
1943
13 days
1944
17 days
1945
12 days
1946
14 days
1947
14 days
1948
19 days
1949
23 days
1950
11 days
1951
13 days
1952
14 days
1953
17 days
1954
13 days
1955
11 days
1956
17 days
1957
18 days
1958
17 days
1959
14 days
1960
23 days
1961
26 days
1962
18 days
1963
16 days
1964
9 days
1965
12 days
1966
13 days
1967
24 days
1968
10 days
1969
19 days
1970
20 days
1971
14 days
1972
18 days
1973
17 days
1974
13 days
1975
19 days
1976
5 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
83 years with a frost
Across 83 years with a frost, the median last spring frost at White River falls on 20 June and the median first autumn frost on 28 July, which leaves a median of 38 days between them.
In 1945 to 1975 the median growing season was 45 days. That is 15 days more than in 1889 to 1921.
Fitted over all years, the growing season changes by +2.3 days per decade at this station.
Frost dates and growing season at White River
Measure
Median, all years
Earliest period (1889 to 1921)
Recent period (1945 to 1975)
Recent against earliest
Fitted trend
Last spring frost
20 June
22 June
19 June
3 days earlier
-0.7 days per decade
First autumn frost
28 July
23 July
3 August
11 days later
+1.6 days per decade
Growing days
38 days
30 days
45 days
15 days more
+2.3 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
85 years, 1889 to 1975
A day with at least 37.8 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 91.9 mm (3.6 in) of rain is expected about once in 100 years.
Rainfall return levels at White River: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
37.8 mm (1.5 in)
5 years
50.0 mm (2.0 in)
10 years
58.9 mm (2.3 in)
25 years
71.2 mm (2.8 in)
50 years
81.2 mm (3.2 in)
100 years
91.9 mm (3.6 in)
Longer than the 85 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, 85 years of values from 1889 to 1975.
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: 91.9 mm (3.6 in) in 1941; 76.5 mm (3.0 in) in 1937; 74.7 mm (2.9 in) in 1891.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for White River standing records by year: CSV or JSON. Field meanings are on the data page.
Data for White River 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.