Record envelope, standing records and threshold days for Prince Rupert (CA001066480), British Columbia, Canada, with 55 years of record.
Key Facts for Prince Rupert
Prince Rupert (CA001066480) is a weather station in British Columbia, Canada at 54.28 latitude and -130.38 longitude, 52 m (171 ft) above sea level.
The station reports from 1908 to 1962, 55 years of record.
1,464 records set at Prince Rupert still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Prince Rupert tied a daily record high maximum temperature of 11.1 C (52.0 F) on 15 December 1962.
About the Station
Location: British Columbia, Canada, 54.28 latitude, -130.38 longitude.
Elevation: 52 m (171 ft).
Period of record: 1908 to 1962, 55 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 Prince Rupert. 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 Prince Rupert, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Feb
18.9 C (66.0 F)
-17.2 C (1.0 F)
n/a
n/a
Mar
20.0 C (68.0 F)
-15.0 C (5.0 F)
n/a
n/a
Apr
23.3 C (73.9 F)
-6.7 C (19.9 F)
n/a
n/a
May
29.4 C (84.9 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
32.2 C (90.0 F)
1.7 C (35.1 F)
n/a
n/a
Jul
30.6 C (87.1 F)
3.9 C (39.0 F)
n/a
n/a
Aug
30.0 C (86.0 F)
3.9 C (39.0 F)
n/a
n/a
Sep
27.2 C (81.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
21.7 C (71.1 F)
-5.6 C (21.9 F)
n/a
n/a
Nov
20.0 C (68.0 F)
-11.7 C (10.9 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-15.0 C (5.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Prince Rupert still stand. 1911 holds the most, with 70.
Standing records at Prince Rupert by the year they were set
Year set
Standing records
1908
15
1909
44
1910
22
1911
70
1912
44
1913
48
1914
45
1915
35
1916
42
1917
46
1918
33
1919
50
1920
24
1921
24
1922
28
1923
37
1924
32
1925
29
1926
32
1927
37
1928
10
1929
22
1930
19
1931
20
1932
19
1933
37
1934
30
1935
32
1936
30
1937
15
1938
24
1939
13
1940
22
1941
18
1942
31
1943
36
1944
28
1945
7
1946
14
1947
22
1948
22
1949
29
1950
21
1951
16
1952
9
1953
6
1954
25
1955
37
1956
17
1957
9
1958
34
1959
16
1960
15
1961
12
1962
10
All-Time Record Progression
2 new records
2 all-time records were set at Prince Rupert between 11 October 1953 and 6 June 1958. Each dot is a new record.
When Prince Rupert set new all-time records
Date
Kind
Detail
1953-10-11
Record daily precipitation
Record daily precipitation 141.0 mm (5.6 in)
1958-06-06
Record high maximum temperature
Record high maximum temperature 32.2 C (90.0 F)
Wettest Day of Each Month
Oct: 141.0 mm (5.6 in)
The wettest day on record for each calendar month at Prince Rupert. The most was 141.0 mm (5.6 in) on 11 October 1953.
Record daily precipitation for each month at Prince Rupert
Month
Record daily precipitation (mm)
Date
Jan
125.0 mm (4.9 in)
26 January 1934
Feb
78.0 mm (3.1 in)
9 February 1928
Mar
103.6 mm (4.1 in)
12 March 1911
Apr
71.1 mm (2.8 in)
15 April 1952
May
65.5 mm (2.6 in)
6 May 1936
Jun
48.0 mm (1.9 in)
10 June 1941
Jul
67.1 mm (2.6 in)
30 July 1949
Aug
70.6 mm (2.8 in)
20 August 1962
Sep
94.7 mm (3.7 in)
14 September 1909
Oct
141.0 mm (5.6 in)
11 October 1953
Nov
137.9 mm (5.4 in)
2 November 1956
Dec
125.5 mm (4.9 in)
3 December 1954
Period of Record Coverage
1908 to 1962
Complete yearUnder 90 percent of days
55 years of record at Prince Rupert, 1908 to 1962. 3 years have data for under 90 percent of days and are left out of rankings: 1908, 1910, 1953.
Cooler than the station meanWarmer than the station mean
One stripe for each of 50 complete years at Prince Rupert, 1909 to 1962. Blue stripes are years cooler than the station's own mean of 7.6 C (45.7 F); red stripes are warmer. The coolest year was 1909, at 6.1 C (42.9 F), and the warmest was 1926, at 9.0 C (48.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Prince Rupert as warming stripes, 1909 to 1962
Year
Annual mean temperature
Difference from the station mean
1909
6.1 C
-1.55 C
1911
6.5 C
-1.12 C
1912
8.2 C
+0.57 C
1913
7.6 C
+0.04 C
1914
8.2 C
+0.60 C
1915
8.9 C
+1.29 C
1916
6.5 C
-1.15 C
1917
6.8 C
-0.84 C
1918
7.1 C
-0.50 C
1919
6.9 C
-0.70 C
1920
6.7 C
-0.88 C
1921
6.8 C
-0.79 C
1922
6.9 C
-0.68 C
1923
8.3 C
+0.68 C
1924
7.9 C
+0.31 C
1925
8.0 C
+0.41 C
1926
9.0 C
+1.42 C
1927
7.3 C
-0.27 C
1928
8.4 C
+0.75 C
1929
7.7 C
+0.05 C
1930
7.7 C
+0.08 C
1931
8.2 C
+0.63 C
1932
7.3 C
-0.29 C
1933
6.5 C
-1.10 C
1934
8.1 C
+0.50 C
1935
7.0 C
-0.63 C
1937
7.9 C
+0.25 C
1938
8.2 C
+0.57 C
1939
7.9 C
+0.31 C
1940
8.7 C
+1.08 C
1941
8.8 C
+1.23 C
1942
8.7 C
+1.09 C
1943
8.0 C
+0.38 C
1944
8.6 C
+0.98 C
1945
7.7 C
+0.10 C
1946
7.6 C
+0.00 C
1947
7.9 C
+0.29 C
1948
7.0 C
-0.60 C
1949
7.0 C
-0.63 C
1950
6.4 C
-1.25 C
1951
6.9 C
-0.67 C
1954
7.4 C
-0.19 C
1955
6.2 C
-1.43 C
1956
6.9 C
-0.75 C
1957
7.6 C
-0.02 C
1958
8.8 C
+1.20 C
1959
7.7 C
+0.10 C
1960
8.1 C
+0.52 C
1961
8.2 C
+0.63 C
1962
7.5 C
-0.10 C
The fitted trend in annual mean temperature here over 1909 to 1962 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 50 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Prince Rupert
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.4) per decade
1909 to 1962
50
Not clearly different from zero
Mean daily maximum
0.03 C (-0.14 to 0.20) per decade
0.1 F (-0.3 to 0.4) per decade
1909 to 1962
50
Not clearly different from zero
Mean daily minimum
0.10 C (-0.04 to 0.23) per decade
0.2 F (-0.1 to 0.4) per decade
1909 to 1962
50
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
1908 to 1962
Yearly extremes at Prince Rupert: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
32.2 C (90.0 F)
1958
26.1 C (79.0 F)
55
Coldest night (TNn)
-21.1 C (-6.0 F)
1916
-12.8 C (9.0 F)
55
Wettest day (Rx1day)
141.0 mm (5.6 in)
1953
70.6 mm (2.8 in)
55
Wettest five days (Rx5day)
274.7 mm (10.8 in)
1934
154.1 mm (6.1 in)
55
Longest dry spell (CDD)
27 days
1927
13 days
55
Hottest day (TXx)
The hottest day of the year at Prince Rupert, 1908 to 1962. The record is 32.2 C (90.0 F) in 1958, marked on the chart; the median year is 26.1 C (79.0 F).
Hottest day (TXx) at Prince Rupert by year
Year
Hottest day (TXx)
1908
23.3 C (73.9 F)
1909
23.9 C (75.0 F)
1910
27.2 C (81.0 F)
1911
28.3 C (82.9 F)
1912
29.4 C (84.9 F)
1913
25.6 C (78.1 F)
1914
25.0 C (77.0 F)
1915
26.1 C (79.0 F)
1916
30.0 C (86.0 F)
1917
27.2 C (81.0 F)
1918
27.2 C (81.0 F)
1919
25.0 C (77.0 F)
1920
23.3 C (73.9 F)
1921
24.4 C (75.9 F)
1922
27.8 C (82.0 F)
1923
26.1 C (79.0 F)
1924
26.7 C (80.1 F)
1925
31.1 C (88.0 F)
1926
27.8 C (82.0 F)
1927
28.3 C (82.9 F)
1928
24.4 C (75.9 F)
1929
28.9 C (84.0 F)
1930
26.7 C (80.1 F)
1931
23.3 C (73.9 F)
1932
24.4 C (75.9 F)
1933
27.8 C (82.0 F)
1934
30.6 C (87.1 F)
1935
23.9 C (75.0 F)
1936
25.0 C (77.0 F)
1937
26.1 C (79.0 F)
1938
25.6 C (78.1 F)
1939
22.8 C (73.0 F)
1940
26.1 C (79.0 F)
1941
27.8 C (82.0 F)
1942
29.4 C (84.9 F)
1943
25.0 C (77.0 F)
1944
25.6 C (78.1 F)
1945
26.7 C (80.1 F)
1946
30.0 C (86.0 F)
1947
25.6 C (78.1 F)
1948
28.9 C (84.0 F)
1949
26.1 C (79.0 F)
1950
25.6 C (78.1 F)
1951
25.6 C (78.1 F)
1952
30.6 C (87.1 F)
1953
23.9 C (75.0 F)
1954
25.6 C (78.1 F)
1955
27.8 C (82.0 F)
1956
25.6 C (78.1 F)
1957
27.2 C (81.0 F)
1958
32.2 C (90.0 F)
1959
25.0 C (77.0 F)
1960
25.6 C (78.1 F)
1961
24.4 C (75.9 F)
1962
25.0 C (77.0 F)
Coldest night (TNn)
The coldest night of the year at Prince Rupert, 1908 to 1962. The record is -21.1 C (-6.0 F) in 1916, marked on the chart; the median year is -12.8 C (9.0 F).
Coldest night (TNn) at Prince Rupert by year
Year
Coldest night (TNn)
1908
-7.8 C (18.0 F)
1909
-17.2 C (1.0 F)
1910
-13.9 C (7.0 F)
1911
-19.4 C (-2.9 F)
1912
-13.3 C (8.1 F)
1913
-15.6 C (3.9 F)
1914
-13.3 C (8.1 F)
1915
-5.6 C (21.9 F)
1916
-21.1 C (-6.0 F)
1917
-20.0 C (-4.0 F)
1918
-11.7 C (10.9 F)
1919
-14.4 C (6.1 F)
1920
-13.9 C (7.0 F)
1921
-10.0 C (14.0 F)
1922
-13.3 C (8.1 F)
1923
-15.0 C (5.0 F)
1924
-15.0 C (5.0 F)
1925
-7.2 C (19.0 F)
1926
-7.8 C (18.0 F)
1927
-11.7 C (10.9 F)
1928
-8.9 C (16.0 F)
1929
-13.3 C (8.1 F)
1930
-11.1 C (12.0 F)
1931
-5.6 C (21.9 F)
1932
-11.1 C (12.0 F)
1933
-13.3 C (8.1 F)
1934
-11.7 C (10.9 F)
1935
-15.0 C (5.0 F)
1936
-16.7 C (1.9 F)
1937
-12.8 C (9.0 F)
1938
-11.1 C (12.0 F)
1939
-12.2 C (10.0 F)
1940
-8.9 C (16.0 F)
1941
-9.4 C (15.1 F)
1942
-5.6 C (21.9 F)
1943
-17.2 C (1.0 F)
1944
-3.9 C (25.0 F)
1945
-6.1 C (21.0 F)
1946
-8.3 C (17.1 F)
1947
-19.4 C (-2.9 F)
1948
-12.2 C (10.0 F)
1949
-14.4 C (6.1 F)
1950
-16.1 C (3.0 F)
1951
-15.0 C (5.0 F)
1952
-13.3 C (8.1 F)
1953
-2.8 C (27.0 F)
1954
-13.3 C (8.1 F)
1955
-14.4 C (6.1 F)
1956
-16.1 C (3.0 F)
1957
-12.8 C (9.0 F)
1958
-10.0 C (14.0 F)
1959
-10.0 C (14.0 F)
1960
-4.4 C (24.1 F)
1961
-3.9 C (25.0 F)
1962
-9.4 C (15.1 F)
Wettest day (Rx1day)
The wettest day of the year at Prince Rupert, 1908 to 1962. The record is 141.0 mm (5.6 in) in 1953, marked on the chart; the median year is 70.6 mm (2.8 in).
Wettest day (Rx1day) at Prince Rupert by year
Year
Wettest day (Rx1day)
1908
74.4 mm (2.9 in)
1909
94.7 mm (3.7 in)
1910
76.2 mm (3.0 in)
1911
103.6 mm (4.1 in)
1912
65.8 mm (2.6 in)
1913
112.3 mm (4.4 in)
1914
67.8 mm (2.7 in)
1915
81.3 mm (3.2 in)
1916
63.0 mm (2.5 in)
1917
55.1 mm (2.2 in)
1918
43.2 mm (1.7 in)
1919
38.9 mm (1.5 in)
1920
40.9 mm (1.6 in)
1921
80.8 mm (3.2 in)
1922
99.8 mm (3.9 in)
1923
84.3 mm (3.3 in)
1924
83.1 mm (3.3 in)
1925
52.8 mm (2.1 in)
1926
61.0 mm (2.4 in)
1927
49.3 mm (1.9 in)
1928
78.0 mm (3.1 in)
1929
76.2 mm (3.0 in)
1930
64.3 mm (2.5 in)
1931
67.6 mm (2.7 in)
1932
85.9 mm (3.4 in)
1933
83.3 mm (3.3 in)
1934
125.0 mm (4.9 in)
1935
112.8 mm (4.4 in)
1936
65.5 mm (2.6 in)
1937
57.4 mm (2.3 in)
1938
61.5 mm (2.4 in)
1939
68.6 mm (2.7 in)
1940
67.3 mm (2.6 in)
1941
64.8 mm (2.6 in)
1942
66.5 mm (2.6 in)
1943
59.7 mm (2.4 in)
1944
65.8 mm (2.6 in)
1945
74.2 mm (2.9 in)
1946
73.2 mm (2.9 in)
1947
65.5 mm (2.6 in)
1948
72.4 mm (2.9 in)
1949
69.9 mm (2.8 in)
1950
64.8 mm (2.6 in)
1951
109.2 mm (4.3 in)
1952
71.1 mm (2.8 in)
1953
141.0 mm (5.6 in)
1954
125.5 mm (4.9 in)
1955
49.0 mm (1.9 in)
1956
137.9 mm (5.4 in)
1957
70.6 mm (2.8 in)
1958
80.8 mm (3.2 in)
1959
83.6 mm (3.3 in)
1960
69.6 mm (2.7 in)
1961
63.8 mm (2.5 in)
1962
77.7 mm (3.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Prince Rupert, 1908 to 1962. The record is 274.7 mm (10.8 in) in 1934, marked on the chart; the median year is 154.1 mm (6.1 in).
Wettest five days (Rx5day) at Prince Rupert by year
Year
Wettest five days (Rx5day)
1908
262.6 mm (10.3 in)
1909
220.2 mm (8.7 in)
1910
176.8 mm (7.0 in)
1911
248.8 mm (9.8 in)
1912
188.7 mm (7.4 in)
1913
201.1 mm (7.9 in)
1914
175.8 mm (6.9 in)
1915
165.1 mm (6.5 in)
1916
195.3 mm (7.7 in)
1917
154.1 mm (6.1 in)
1918
94.9 mm (3.7 in)
1919
115.0 mm (4.5 in)
1920
138.5 mm (5.5 in)
1921
138.0 mm (5.4 in)
1922
212.3 mm (8.4 in)
1923
249.2 mm (9.8 in)
1924
150.2 mm (5.9 in)
1925
121.9 mm (4.8 in)
1926
114.4 mm (4.5 in)
1927
116.6 mm (4.6 in)
1928
143.5 mm (5.6 in)
1929
142.2 mm (5.6 in)
1930
126.6 mm (5.0 in)
1931
159.8 mm (6.3 in)
1932
151.9 mm (6.0 in)
1933
213.4 mm (8.4 in)
1934
274.7 mm (10.8 in)
1935
221.0 mm (8.7 in)
1936
116.3 mm (4.6 in)
1937
130.0 mm (5.1 in)
1938
133.6 mm (5.3 in)
1939
148.3 mm (5.8 in)
1940
163.4 mm (6.4 in)
1941
158.7 mm (6.2 in)
1942
189.5 mm (7.5 in)
1943
137.7 mm (5.4 in)
1944
131.6 mm (5.2 in)
1945
128.1 mm (5.0 in)
1946
174.4 mm (6.9 in)
1947
139.0 mm (5.5 in)
1948
149.2 mm (5.9 in)
1949
187.2 mm (7.4 in)
1950
105.0 mm (4.1 in)
1951
152.6 mm (6.0 in)
1952
166.4 mm (6.6 in)
1953
184.7 mm (7.3 in)
1954
264.3 mm (10.4 in)
1955
126.0 mm (5.0 in)
1956
222.0 mm (8.7 in)
1957
182.2 mm (7.2 in)
1958
154.0 mm (6.1 in)
1959
143.2 mm (5.6 in)
1960
158.6 mm (6.2 in)
1961
144.7 mm (5.7 in)
1962
172.2 mm (6.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Prince Rupert, 1908 to 1962. The record is 27 days in 1927, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Prince Rupert by year
Year
Longest dry spell (CDD)
1908
10 days
1909
13 days
1910
11 days
1911
12 days
1912
19 days
1913
10 days
1914
20 days
1915
11 days
1916
19 days
1917
13 days
1918
11 days
1919
13 days
1920
15 days
1921
12 days
1922
14 days
1923
15 days
1924
22 days
1925
22 days
1926
16 days
1927
27 days
1928
21 days
1929
11 days
1930
16 days
1931
11 days
1932
12 days
1933
9 days
1934
16 days
1935
16 days
1936
15 days
1937
13 days
1938
20 days
1939
7 days
1940
13 days
1941
13 days
1942
17 days
1943
14 days
1944
14 days
1945
17 days
1946
18 days
1947
15 days
1948
12 days
1949
14 days
1950
19 days
1951
18 days
1952
11 days
1953
8 days
1954
12 days
1955
8 days
1956
11 days
1957
21 days
1958
20 days
1959
9 days
1960
13 days
1961
13 days
1962
13 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
50 years with a frost
Across 50 years with a frost, the median last spring frost at Prince Rupert falls on 19 April and the median first autumn frost on 1 November, which leaves a median of 194 days between them.
Fitted over all years, the growing season changes by -1.3 days per decade at this station.
Frost dates and growing season at Prince Rupert
Measure
Median, all years
Earliest period
Recent period (1930 to 1962)
Recent against earliest
Fitted trend
Last spring frost
19 April
n/a
20 April
n/a
+1.6 days per decade
First autumn frost
1 November
n/a
4 November
n/a
+0.2 days per decade
Growing days
194 days
n/a
201 days
n/a
-1.3 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
53 years, 1909 to 1962
A day with at least 71.4 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 158.2 mm (6.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Prince Rupert: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
71.4 mm (2.8 in)
5 years
91.4 mm (3.6 in)
10 years
105.9 mm (4.2 in)
25 years
125.6 mm (4.9 in)
50 years
141.4 mm (5.6 in)
100 years
158.2 mm (6.2 in)
Longer than the 53 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, 53 years of values from 1909 to 1962.
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: 141.0 mm (5.6 in) in 1953; 137.9 mm (5.4 in) in 1956; 125.5 mm (4.9 in) in 1954.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Prince Rupert, at 1930. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1930 ran 0.4 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Prince Rupert, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1930
-0.4
-0.6
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 Prince Rupert standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Prince Rupert 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.