Record envelope, standing records and threshold days for Bella Coola (CA001060840), British Columbia, Canada, with 108 years of record.
Key Facts for Bella Coola
Bella Coola (CA001060840) is a weather station in British Columbia, Canada at 52.37 latitude and -126.68 longitude, 18 m (59 ft) above sea level.
The station reports from 1895 to 2002, 108 years of record.
1,464 records set at Bella Coola still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Bella Coola set a daily record low minimum temperature of -1.5 C (29.3 F) on 28 September 1983.
About the Station
Location: British Columbia, Canada, 52.37 latitude, -126.68 longitude.
Elevation: 18 m (59 ft).
Period of record: 1895 to 2002, 108 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Bella Coola. 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 Bella Coola, 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)
-28.9 C (-20.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-24.4 C (-11.9 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-9.4 C (15.1 F)
n/a
n/a
May
37.8 C (100.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
36.1 C (97.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
37.8 C (100.0 F)
1.1 C (34.0 F)
n/a
n/a
Aug
37.8 C (100.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
33.3 C (91.9 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
25.0 C (77.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
20.0 C (68.0 F)
-17.8 C (0.0 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-24.4 C (-11.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bella Coola still stand. 1911 holds the most, with 43.
Standing records at Bella Coola by the year they were set
Year set
Standing records
1895
27
1896
37
1897
12
1898
29
1899
22
1900
15
1901
15
1902
5
1903
13
1904
11
1905
15
1906
4
1907
18
1908
11
1909
23
1910
20
1911
43
1912
15
1913
15
1914
16
1915
14
1916
30
1917
28
1918
17
1919
19
1920
11
1921
6
1922
16
1923
5
1924
19
1925
18
1926
18
1927
14
1928
8
1929
25
1930
21
1931
20
1932
10
1933
29
1934
21
1935
14
1936
32
1937
10
1938
12
1939
20
1940
25
1941
20
1942
17
1943
24
1944
12
1945
15
1946
12
1947
15
1948
11
1949
25
1950
42
1951
26
1952
17
1953
4
1954
16
1955
20
1956
20
1957
16
1958
23
1959
7
1960
7
1961
14
1962
13
1963
27
1964
8
1965
12
1966
9
1967
3
1968
17
1969
13
1970
18
1971
10
1972
10
1973
5
1974
10
1975
9
1976
7
1977
26
1978
6
1979
12
1980
17
1981
16
1982
13
1983
12
All-Time Record Progression
3 new records
3 all-time records were set at Bella Coola between 15 January 1950 and 14 January 1974. Each dot is a new record.
When Bella Coola set new all-time records
Date
Kind
Detail
1950-01-15
Record low minimum temperature
Record low minimum temperature -28.9 C (-20.0 F)
1971-01-15
Record daily snowfall
Record daily snowfall 86.4 cm (34.0 in)
1974-01-14
Record daily snowfall
Record daily snowfall 89.2 cm (35.1 in)
Wettest Day of Each Month
Aug: 157.5 mm (6.2 in)
The wettest day on record for each calendar month at Bella Coola. The most was 157.5 mm (6.2 in) on 19 August 1895.
Record daily precipitation for each month at Bella Coola
Month
Record daily precipitation (mm)
Date
Jan
101.6 mm (4.0 in)
7 January 1982
Feb
85.6 mm (3.4 in)
6 February 1944
Mar
81.0 mm (3.2 in)
20 March 1939
Apr
76.2 mm (3.0 in)
20 April 1897
May
139.7 mm (5.5 in)
5 May 1896
Jun
94.0 mm (3.7 in)
12 June 1896
Jul
44.5 mm (1.8 in)
15 July 1924
Aug
157.5 mm (6.2 in)
19 August 1895
Sep
97.4 mm (3.8 in)
5 September 1980
Oct
133.4 mm (5.3 in)
17 October 1898
Nov
135.9 mm (5.4 in)
3 November 1908
Dec
127.0 mm (5.0 in)
29 December 1901
Period of Record Coverage
1895 to 1983
Complete yearUnder 90 percent of days
89 years of record at Bella Coola, 1895 to 1983. 10 years have data for under 90 percent of days and are left out of rankings: 1895, 1897, 1898, 1899, 1900, 1901, 1902, 1903 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 74 complete years at Bella Coola, 1899 to 1983. Blue stripes are years cooler than the station's own mean of 7.4 C (45.2 F); red stripes are warmer. The coolest year was 1950, at 4.6 C (40.2 F), and the warmest was 1963, at 8.8 C (47.9 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Bella Coola as warming stripes, 1899 to 1983
Year
Annual mean temperature
Difference from the station mean
1899
7.1 C
-0.30 C
1904
6.7 C
-0.63 C
1907
6.7 C
-0.68 C
1908
6.6 C
-0.72 C
1909
5.3 C
-2.04 C
1910
6.5 C
-0.82 C
1911
6.1 C
-1.30 C
1912
7.7 C
+0.37 C
1913
6.5 C
-0.82 C
1914
7.5 C
+0.12 C
1915
8.4 C
+1.06 C
1917
6.2 C
-1.13 C
1919
6.7 C
-0.68 C
1920
6.6 C
-0.71 C
1921
6.5 C
-0.82 C
1922
6.8 C
-0.60 C
1923
8.0 C
+0.62 C
1924
7.4 C
+0.07 C
1925
7.9 C
+0.54 C
1926
8.4 C
+1.07 C
1927
6.5 C
-0.89 C
1928
7.9 C
+0.57 C
1929
7.1 C
-0.21 C
1930
7.2 C
-0.13 C
1932
7.4 C
+0.02 C
1933
7.1 C
-0.24 C
1934
8.8 C
+1.41 C
1935
7.7 C
+0.32 C
1936
7.6 C
+0.25 C
1937
7.0 C
-0.33 C
1938
7.9 C
+0.57 C
1939
7.9 C
+0.55 C
1940
8.6 C
+1.20 C
1941
8.6 C
+1.25 C
1942
8.5 C
+1.18 C
1943
7.5 C
+0.17 C
1944
8.3 C
+0.92 C
1945
7.3 C
-0.01 C
1946
7.3 C
-0.01 C
1947
7.4 C
+0.06 C
1948
6.6 C
-0.71 C
1949
5.7 C
-1.62 C
1950
4.6 C
-2.77 C
1951
6.5 C
-0.90 C
1952
6.7 C
-0.65 C
1953
7.7 C
+0.39 C
1954
6.6 C
-0.74 C
1955
6.0 C
-1.39 C
1956
6.9 C
-0.50 C
1957
7.1 C
-0.23 C
1958
8.8 C
+1.46 C
1960
7.8 C
+0.49 C
1961
8.6 C
+1.29 C
1962
8.2 C
+0.86 C
1963
8.8 C
+1.48 C
1964
7.2 C
-0.19 C
1965
7.9 C
+0.57 C
1966
7.7 C
+0.31 C
1967
8.3 C
+0.90 C
1968
7.4 C
+0.04 C
1969
7.8 C
+0.40 C
1970
7.4 C
0.00 C
1971
6.9 C
-0.48 C
1972
6.7 C
-0.63 C
1973
7.2 C
-0.14 C
1974
7.8 C
+0.47 C
1975
7.1 C
-0.30 C
1976
7.7 C
+0.32 C
1977
7.6 C
+0.29 C
1978
7.8 C
+0.46 C
1979
7.7 C
+0.37 C
1981
8.8 C
+1.40 C
1982
7.1 C
-0.27 C
1983
8.4 C
+1.00 C
The annual mean temperature here has risen by 0.11 C (0.03 to 0.19) per decade over 1899 to 1983. In Fahrenheit: 0.19 F (0.05 to 0.34) per decade. The slope is a straight line fitted to 74 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bella Coola
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.11 C (0.03 to 0.19) per decade
0.19 F (0.05 to 0.34) per decade
1899 to 1983
74
Rise
Mean daily maximum
0.05 C (-0.04 to 0.14) per decade
0.1 F (-0.1 to 0.2) per decade
1899 to 1983
74
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.1 to 0.5) per decade
1899 to 1983
74
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
1895 to 1983
Yearly extremes at Bella Coola: 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)
1905
32.2 C (90.0 F)
89
Coldest night (TNn)
-28.9 C (-20.0 F)
1950
-17.8 C (0.0 F)
89
Wettest day (Rx1day)
157.5 mm (6.2 in)
1895
68.0 mm (2.7 in)
89
Wettest five days (Rx5day)
254.1 mm (10.0 in)
1975
144.0 mm (5.7 in)
89
Longest dry spell (CDD)
111 days
1898
19 days
89
Hottest day (TXx)
The hottest day of the year at Bella Coola, 1895 to 1983. The record is 37.8 C (100.0 F) in 1905, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Bella Coola by year
Year
Hottest day (TXx)
1895
35.0 C (95.0 F)
1896
31.7 C (89.1 F)
1897
32.2 C (90.0 F)
1898
37.2 C (99.0 F)
1899
36.7 C (98.1 F)
1900
33.3 C (91.9 F)
1901
33.3 C (91.9 F)
1902
33.3 C (91.9 F)
1903
36.1 C (97.0 F)
1904
33.3 C (91.9 F)
1905
37.8 C (100.0 F)
1906
35.6 C (96.1 F)
1907
35.6 C (96.1 F)
1908
35.6 C (96.1 F)
1909
31.7 C (89.1 F)
1910
31.7 C (89.1 F)
1911
34.4 C (93.9 F)
1912
33.3 C (91.9 F)
1913
30.6 C (87.1 F)
1914
30.0 C (86.0 F)
1915
33.3 C (91.9 F)
1916
33.9 C (93.0 F)
1917
28.9 C (84.0 F)
1918
31.1 C (88.0 F)
1919
30.0 C (86.0 F)
1920
30.0 C (86.0 F)
1921
27.2 C (81.0 F)
1922
29.4 C (84.9 F)
1923
31.1 C (88.0 F)
1924
30.6 C (87.1 F)
1925
30.6 C (87.1 F)
1926
28.3 C (82.9 F)
1927
31.7 C (89.1 F)
1928
28.3 C (82.9 F)
1929
33.3 C (91.9 F)
1930
37.8 C (100.0 F)
1931
29.4 C (84.9 F)
1932
31.7 C (89.1 F)
1933
32.8 C (91.0 F)
1934
33.9 C (93.0 F)
1935
31.7 C (89.1 F)
1936
30.6 C (87.1 F)
1937
33.3 C (91.9 F)
1938
36.1 C (97.0 F)
1939
31.7 C (89.1 F)
1940
30.0 C (86.0 F)
1941
34.4 C (93.9 F)
1942
35.6 C (96.1 F)
1943
28.9 C (84.0 F)
1944
32.2 C (90.0 F)
1945
30.6 C (87.1 F)
1946
31.7 C (89.1 F)
1947
33.3 C (91.9 F)
1948
30.0 C (86.0 F)
1949
28.9 C (84.0 F)
1950
29.4 C (84.9 F)
1951
33.3 C (91.9 F)
1952
35.0 C (95.0 F)
1953
32.2 C (90.0 F)
1954
27.2 C (81.0 F)
1955
32.2 C (90.0 F)
1956
32.2 C (90.0 F)
1957
29.4 C (84.9 F)
1958
35.0 C (95.0 F)
1959
30.0 C (86.0 F)
1960
34.4 C (93.9 F)
1961
36.7 C (98.1 F)
1962
28.9 C (84.0 F)
1963
32.2 C (90.0 F)
1964
28.3 C (82.9 F)
1965
32.8 C (91.0 F)
1966
30.0 C (86.0 F)
1967
30.6 C (87.1 F)
1968
30.0 C (86.0 F)
1969
33.3 C (91.9 F)
1970
27.8 C (82.0 F)
1971
34.4 C (93.9 F)
1972
30.6 C (87.1 F)
1973
30.0 C (86.0 F)
1974
33.3 C (91.9 F)
1975
33.3 C (91.9 F)
1976
26.1 C (79.0 F)
1977
33.0 C (91.4 F)
1978
31.0 C (87.8 F)
1979
31.0 C (87.8 F)
1980
30.5 C (86.9 F)
1981
34.0 C (93.2 F)
1982
32.5 C (90.5 F)
1983
34.0 C (93.2 F)
Coldest night (TNn)
The coldest night of the year at Bella Coola, 1895 to 1983. The record is -28.9 C (-20.0 F) in 1950, marked on the chart; the median year is -17.8 C (0.0 F).
Coldest night (TNn) at Bella Coola by year
Year
Coldest night (TNn)
1895
-13.9 C (7.0 F)
1896
-17.8 C (0.0 F)
1897
-13.3 C (8.1 F)
1898
-13.3 C (8.1 F)
1899
-16.7 C (1.9 F)
1900
-13.9 C (7.0 F)
1901
-20.0 C (-4.0 F)
1902
-17.8 C (0.0 F)
1903
-15.0 C (5.0 F)
1904
-17.2 C (1.0 F)
1905
-13.9 C (7.0 F)
1906
-13.3 C (8.1 F)
1907
-18.3 C (-0.9 F)
1908
-14.4 C (6.1 F)
1909
-22.2 C (-8.0 F)
1910
-16.7 C (1.9 F)
1911
-27.8 C (-18.0 F)
1912
-19.4 C (-2.9 F)
1913
-17.8 C (0.0 F)
1914
-16.1 C (3.0 F)
1915
-11.7 C (10.9 F)
1916
-26.1 C (-15.0 F)
1917
-24.4 C (-11.9 F)
1918
-15.0 C (5.0 F)
1919
-17.2 C (1.0 F)
1920
-17.8 C (0.0 F)
1921
-14.4 C (6.1 F)
1922
-18.3 C (-0.9 F)
1923
-19.4 C (-2.9 F)
1924
-21.1 C (-6.0 F)
1925
-11.1 C (12.0 F)
1926
-12.2 C (10.0 F)
1927
-17.8 C (0.0 F)
1928
-16.7 C (1.9 F)
1929
-21.1 C (-6.0 F)
1930
-18.9 C (-2.0 F)
1931
-10.6 C (12.9 F)
1932
-18.3 C (-0.9 F)
1933
-17.8 C (0.0 F)
1934
-14.4 C (6.1 F)
1935
-21.7 C (-7.1 F)
1936
-22.8 C (-9.0 F)
1937
-18.9 C (-2.0 F)
1938
-15.6 C (3.9 F)
1939
-18.3 C (-0.9 F)
1940
-11.1 C (12.0 F)
1941
-15.0 C (5.0 F)
1942
-13.9 C (7.0 F)
1943
-22.2 C (-8.0 F)
1944
-12.8 C (9.0 F)
1945
-14.4 C (6.1 F)
1946
-15.6 C (3.9 F)
1947
-23.3 C (-9.9 F)
1948
-24.4 C (-11.9 F)
1949
-20.0 C (-4.0 F)
1950
-28.9 C (-20.0 F)
1951
-20.6 C (-5.1 F)
1952
-21.1 C (-6.0 F)
1953
-17.8 C (0.0 F)
1954
-20.6 C (-5.1 F)
1955
-22.2 C (-8.0 F)
1956
-18.9 C (-2.0 F)
1957
-24.4 C (-11.9 F)
1958
-11.7 C (10.9 F)
1959
-15.0 C (5.0 F)
1960
-10.0 C (14.0 F)
1961
-9.4 C (15.1 F)
1962
-13.9 C (7.0 F)
1963
-15.6 C (3.9 F)
1964
-20.6 C (-5.1 F)
1965
-19.4 C (-2.9 F)
1966
-18.9 C (-2.0 F)
1967
-13.3 C (8.1 F)
1968
-23.9 C (-11.0 F)
1969
-19.4 C (-2.9 F)
1970
-16.7 C (1.9 F)
1971
-19.4 C (-2.9 F)
1972
-18.9 C (-2.0 F)
1973
-13.9 C (7.0 F)
1974
-16.7 C (1.9 F)
1975
-15.6 C (3.9 F)
1976
-15.6 C (3.9 F)
1977
-21.0 C (-5.8 F)
1978
-18.0 C (-0.4 F)
1979
-18.0 C (-0.4 F)
1980
-18.0 C (-0.4 F)
1981
-11.5 C (11.3 F)
1982
-19.0 C (-2.2 F)
1983
-14.0 C (6.8 F)
Wettest day (Rx1day)
The wettest day of the year at Bella Coola, 1895 to 1983. The record is 157.5 mm (6.2 in) in 1895, marked on the chart; the median year is 68.0 mm (2.7 in).
Wettest day (Rx1day) at Bella Coola by year
Year
Wettest day (Rx1day)
1895
157.5 mm (6.2 in)
1896
139.7 mm (5.5 in)
1897
76.2 mm (3.0 in)
1898
133.4 mm (5.3 in)
1899
60.2 mm (2.4 in)
1900
71.1 mm (2.8 in)
1901
127.0 mm (5.0 in)
1902
72.6 mm (2.9 in)
1903
88.9 mm (3.5 in)
1904
44.7 mm (1.8 in)
1905
35.6 mm (1.4 in)
1906
61.7 mm (2.4 in)
1907
55.6 mm (2.2 in)
1908
135.9 mm (5.4 in)
1909
52.8 mm (2.1 in)
1910
36.8 mm (1.4 in)
1911
48.3 mm (1.9 in)
1912
56.9 mm (2.2 in)
1913
58.7 mm (2.3 in)
1914
71.1 mm (2.8 in)
1915
48.5 mm (1.9 in)
1916
52.1 mm (2.1 in)
1917
58.4 mm (2.3 in)
1918
44.7 mm (1.8 in)
1919
91.4 mm (3.6 in)
1920
88.6 mm (3.5 in)
1921
38.6 mm (1.5 in)
1922
72.1 mm (2.8 in)
1923
40.1 mm (1.6 in)
1924
80.5 mm (3.2 in)
1925
62.5 mm (2.5 in)
1926
57.2 mm (2.3 in)
1927
61.0 mm (2.4 in)
1928
57.7 mm (2.3 in)
1929
74.7 mm (2.9 in)
1930
58.4 mm (2.3 in)
1931
47.2 mm (1.9 in)
1932
69.9 mm (2.8 in)
1933
83.3 mm (3.3 in)
1934
81.0 mm (3.2 in)
1935
71.1 mm (2.8 in)
1936
98.6 mm (3.9 in)
1937
57.2 mm (2.3 in)
1938
77.5 mm (3.1 in)
1939
93.0 mm (3.7 in)
1940
79.2 mm (3.1 in)
1941
53.8 mm (2.1 in)
1942
61.2 mm (2.4 in)
1943
58.2 mm (2.3 in)
1944
85.6 mm (3.4 in)
1945
51.1 mm (2.0 in)
1946
50.5 mm (2.0 in)
1947
89.9 mm (3.5 in)
1948
39.9 mm (1.6 in)
1949
73.2 mm (2.9 in)
1950
117.3 mm (4.6 in)
1951
35.8 mm (1.4 in)
1952
90.9 mm (3.6 in)
1953
55.4 mm (2.2 in)
1954
69.1 mm (2.7 in)
1955
45.0 mm (1.8 in)
1956
53.6 mm (2.1 in)
1957
71.4 mm (2.8 in)
1958
80.0 mm (3.1 in)
1959
56.4 mm (2.2 in)
1960
44.7 mm (1.8 in)
1961
62.2 mm (2.4 in)
1962
70.6 mm (2.8 in)
1963
69.1 mm (2.7 in)
1964
61.5 mm (2.4 in)
1965
84.8 mm (3.3 in)
1966
63.5 mm (2.5 in)
1967
64.5 mm (2.5 in)
1968
72.6 mm (2.9 in)
1969
43.7 mm (1.7 in)
1970
56.6 mm (2.2 in)
1971
86.4 mm (3.4 in)
1972
62.5 mm (2.5 in)
1973
68.3 mm (2.7 in)
1974
89.2 mm (3.5 in)
1975
114.0 mm (4.5 in)
1976
81.3 mm (3.2 in)
1977
68.0 mm (2.7 in)
1978
82.4 mm (3.2 in)
1979
49.6 mm (2.0 in)
1980
97.4 mm (3.8 in)
1981
92.0 mm (3.6 in)
1982
101.6 mm (4.0 in)
1983
57.4 mm (2.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bella Coola, 1895 to 1983. The record is 254.1 mm (10.0 in) in 1975, marked on the chart; the median year is 144.0 mm (5.7 in).
Wettest five days (Rx5day) at Bella Coola by year
Year
Wettest five days (Rx5day)
1895
165.1 mm (6.5 in)
1896
241.4 mm (9.5 in)
1897
91.4 mm (3.6 in)
1898
173.3 mm (6.8 in)
1899
169.4 mm (6.7 in)
1900
71.1 mm (2.8 in)
1901
147.4 mm (5.8 in)
1902
147.4 mm (5.8 in)
1903
169.3 mm (6.7 in)
1904
83.1 mm (3.3 in)
1905
77.2 mm (3.0 in)
1906
132.1 mm (5.2 in)
1907
99.2 mm (3.9 in)
1908
201.2 mm (7.9 in)
1909
110.0 mm (4.3 in)
1910
99.3 mm (3.9 in)
1911
100.7 mm (4.0 in)
1912
131.6 mm (5.2 in)
1913
105.8 mm (4.2 in)
1914
141.1 mm (5.6 in)
1915
131.0 mm (5.2 in)
1916
136.9 mm (5.4 in)
1917
156.7 mm (6.2 in)
1918
94.0 mm (3.7 in)
1919
169.4 mm (6.7 in)
1920
231.3 mm (9.1 in)
1921
114.1 mm (4.5 in)
1922
125.0 mm (4.9 in)
1923
105.7 mm (4.2 in)
1924
198.7 mm (7.8 in)
1925
144.0 mm (5.7 in)
1926
110.8 mm (4.4 in)
1927
151.2 mm (6.0 in)
1928
160.5 mm (6.3 in)
1929
160.8 mm (6.3 in)
1930
160.7 mm (6.3 in)
1931
103.9 mm (4.1 in)
1932
201.8 mm (7.9 in)
1933
144.8 mm (5.7 in)
1934
169.9 mm (6.7 in)
1935
119.6 mm (4.7 in)
1936
202.0 mm (8.0 in)
1937
106.0 mm (4.2 in)
1938
235.3 mm (9.3 in)
1939
195.6 mm (7.7 in)
1940
188.4 mm (7.4 in)
1941
132.6 mm (5.2 in)
1942
106.2 mm (4.2 in)
1943
130.0 mm (5.1 in)
1944
132.1 mm (5.2 in)
1945
84.3 mm (3.3 in)
1946
136.6 mm (5.4 in)
1947
197.3 mm (7.8 in)
1948
129.1 mm (5.1 in)
1949
171.5 mm (6.8 in)
1950
203.4 mm (8.0 in)
1951
71.7 mm (2.8 in)
1952
153.9 mm (6.1 in)
1953
109.5 mm (4.3 in)
1954
142.0 mm (5.6 in)
1955
71.0 mm (2.8 in)
1956
149.1 mm (5.9 in)
1957
150.2 mm (5.9 in)
1958
116.9 mm (4.6 in)
1959
152.2 mm (6.0 in)
1960
109.2 mm (4.3 in)
1961
115.9 mm (4.6 in)
1962
213.1 mm (8.4 in)
1963
155.9 mm (6.1 in)
1964
131.8 mm (5.2 in)
1965
148.8 mm (5.9 in)
1966
113.6 mm (4.5 in)
1967
155.9 mm (6.1 in)
1968
157.4 mm (6.2 in)
1969
119.9 mm (4.7 in)
1970
114.7 mm (4.5 in)
1971
237.3 mm (9.3 in)
1972
123.9 mm (4.9 in)
1973
147.1 mm (5.8 in)
1974
205.3 mm (8.1 in)
1975
254.1 mm (10.0 in)
1976
172.9 mm (6.8 in)
1977
134.8 mm (5.3 in)
1978
130.4 mm (5.1 in)
1979
128.8 mm (5.1 in)
1980
200.8 mm (7.9 in)
1981
154.8 mm (6.1 in)
1982
163.6 mm (6.4 in)
1983
176.6 mm (7.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bella Coola, 1895 to 1983. The record is 111 days in 1898, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Bella Coola by year
Year
Longest dry spell (CDD)
1895
18 days
1896
58 days
1897
24 days
1898
111 days
1899
21 days
1900
19 days
1901
26 days
1902
18 days
1903
67 days
1904
23 days
1905
25 days
1906
11 days
1907
34 days
1908
21 days
1909
15 days
1910
17 days
1911
24 days
1912
17 days
1913
12 days
1914
27 days
1915
18 days
1916
21 days
1917
17 days
1918
29 days
1919
17 days
1920
16 days
1921
14 days
1922
26 days
1923
21 days
1924
27 days
1925
24 days
1926
20 days
1927
24 days
1928
31 days
1929
22 days
1930
26 days
1931
18 days
1932
16 days
1933
18 days
1934
22 days
1935
17 days
1936
12 days
1937
14 days
1938
18 days
1939
10 days
1940
14 days
1941
17 days
1942
32 days
1943
17 days
1944
17 days
1945
16 days
1946
29 days
1947
13 days
1948
15 days
1949
22 days
1950
19 days
1951
22 days
1952
29 days
1953
14 days
1954
22 days
1955
13 days
1956
19 days
1957
22 days
1958
23 days
1959
16 days
1960
20 days
1961
19 days
1962
20 days
1963
20 days
1964
16 days
1965
30 days
1966
11 days
1967
32 days
1968
18 days
1969
20 days
1970
15 days
1971
18 days
1972
13 days
1973
21 days
1974
19 days
1975
18 days
1976
9 days
1977
22 days
1978
24 days
1979
17 days
1980
11 days
1981
34 days
1982
32 days
1983
15 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
74 years with a frost
Across 74 years with a frost, the median last spring frost at Bella Coola falls on 8 May and the median first autumn frost on 5 October, which leaves a median of 151 days between them.
In 1952 to 1983 the median growing season was 162 days. That is 21 days more than in 1899 to 1937.
Fitted over all years, the growing season changes by +3.9 days per decade at this station.
Frost dates and growing season at Bella Coola
Measure
Median, all years
Earliest period (1899 to 1937)
Recent period (1952 to 1983)
Recent against earliest
Fitted trend
Last spring frost
8 May
9 May
4 May
5 days earlier
-1.4 days per decade
First autumn frost
5 October
27 September
13 October
16 days later
+2.5 days per decade
Growing days
151 days
141 days
162 days
21 days more
+3.9 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, 1896 to 1983
A day with at least 65.8 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 140.4 mm (5.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Bella Coola: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
65.8 mm (2.6 in)
5 years
85.3 mm (3.4 in)
10 years
98.4 mm (3.9 in)
25 years
115.1 mm (4.5 in)
50 years
127.7 mm (5.0 in)
100 years
140.4 mm (5.5 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 1896 to 1983.
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: 139.7 mm (5.5 in) in 1896; 135.9 mm (5.4 in) in 1908; 127.0 mm (5.0 in) in 1901.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Bella Coola, at 1947 and 1957. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1947 ran 0.5 C (1.0 F) lower than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1957 ran 1.0 C (1.8 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Bella Coola, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1947
-0.5
-1.0
possible
5
1957
+1.0
+1.8
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 Bella Coola standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bella Coola 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.