Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Kapuskasing A. 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 Kapuskasing A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
8.3 C (46.9 F)
-45.3 C (-49.5 F)
n/a
n/a
Feb
12.2 C (54.0 F)
-43.3 C (-45.9 F)
n/a
n/a
Mar
19.4 C (66.9 F)
-42.2 C (-44.0 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-28.3 C (-18.9 F)
n/a
n/a
May
32.8 C (91.0 F)
-13.0 C (8.6 F)
n/a
n/a
Jun
36.1 C (97.0 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
36.7 C (98.1 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
35.0 C (95.0 F)
-2.8 C (27.0 F)
n/a
n/a
Sep
33.3 C (91.9 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-15.6 C (3.9 F)
n/a
n/a
Nov
19.4 C (66.9 F)
-34.4 C (-29.9 F)
n/a
n/a
Dec
13.3 C (55.9 F)
-44.4 C (-47.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Kapuskasing A still stand. 1964 holds the most, with 52.
Standing records at Kapuskasing A by the year they were set
Year set
Standing records
1937
28
1938
34
1939
35
1940
31
1941
34
1942
46
1943
38
1944
42
1945
40
1946
46
1947
50
1948
24
1949
24
1950
31
1951
28
1952
23
1953
37
1954
33
1955
42
1956
37
1957
29
1958
33
1959
34
1960
17
1961
27
1962
33
1963
38
1964
52
1965
26
1966
27
1967
26
1968
25
1969
11
1970
27
1971
17
1972
28
1973
19
1974
23
1975
33
1976
36
1977
27
1978
22
1979
21
1980
21
1981
36
1982
37
1983
36
All-Time Record Progression
4 new records
4 all-time records were set at Kapuskasing A between 7 January 1968 and 20 October 1982. Each dot is a new record.
When Kapuskasing A set new all-time records
Date
Kind
Detail
1968-01-07
Record low minimum temperature
Record low minimum temperature -44.4 C (-47.9 F)
1975-07-31
Record high maximum temperature
Record high maximum temperature 36.7 C (98.1 F)
1982-01-18
Record low minimum temperature
Record low minimum temperature -45.3 C (-49.5 F)
1982-10-20
Record daily snowfall
Record daily snowfall 51.2 cm (20.2 in)
Wettest Day of Each Month
May: 79.0 mm (3.1 in)
The wettest day on record for each calendar month at Kapuskasing A. The most was 79.0 mm (3.1 in) on 29 May 1962.
Record daily precipitation for each month at Kapuskasing A
Month
Record daily precipitation (mm)
Date
Jan
49.5 mm (1.9 in)
14 January 1940
Feb
25.4 mm (1.0 in)
11 February 1960
Mar
45.0 mm (1.8 in)
1 March 1954
Apr
45.2 mm (1.8 in)
26 April 1938
May
79.0 mm (3.1 in)
29 May 1962
Jun
62.0 mm (2.4 in)
18 June 1941
Jul
71.1 mm (2.8 in)
13 July 1938
Aug
65.3 mm (2.6 in)
20 August 1939
Sep
51.3 mm (2.0 in)
4 September 1962
Oct
55.2 mm (2.2 in)
20 October 1982
Nov
46.0 mm (1.8 in)
8 November 1957
Dec
38.1 mm (1.5 in)
20 December 1939
Period of Record Coverage
1937 to 1983
Complete yearUnder 90 percent of days
47 years of record at Kapuskasing A, 1937 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1937.
Cooler than the station meanWarmer than the station mean
One stripe for each of 44 complete years at Kapuskasing A, 1939 to 1983. Blue stripes are years cooler than the station's own mean of 0.6 C (33.1 F); red stripes are warmer. The coolest year was 1972, at -1.1 C (30.0 F), and the warmest was 1981, at 1.9 C (35.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Kapuskasing A as warming stripes, 1939 to 1983
Year
Annual mean temperature
Difference from the station mean
1939
0.0 C
-0.60 C
1940
0.5 C
-0.16 C
1941
1.1 C
+0.48 C
1942
0.9 C
+0.24 C
1943
0.2 C
-0.47 C
1944
1.8 C
+1.22 C
1945
0.7 C
+0.07 C
1946
1.0 C
+0.34 C
1947
1.1 C
+0.50 C
1948
1.8 C
+1.14 C
1949
1.2 C
+0.57 C
1950
-0.8 C
-1.44 C
1951
0.8 C
+0.21 C
1952
1.8 C
+1.20 C
1953
1.8 C
+1.22 C
1954
0.7 C
+0.10 C
1955
1.9 C
+1.26 C
1956
0.2 C
-0.40 C
1957
1.0 C
+0.34 C
1958
0.9 C
+0.24 C
1959
0.6 C
-0.03 C
1960
0.7 C
+0.08 C
1961
1.0 C
+0.36 C
1962
0.2 C
-0.38 C
1963
0.3 C
-0.35 C
1964
0.1 C
-0.49 C
1965
-0.6 C
-1.18 C
1966
0.3 C
-0.35 C
1967
-0.4 C
-1.00 C
1968
0.8 C
+0.22 C
1969
0.7 C
+0.10 C
1970
0.3 C
-0.31 C
1971
0.8 C
+0.22 C
1972
-1.1 C
-1.72 C
1973
1.6 C
+0.97 C
1974
-0.4 C
-1.02 C
1975
1.2 C
+0.57 C
1976
-0.5 C
-1.14 C
1977
1.4 C
+0.73 C
1978
-0.7 C
-1.32 C
1980
-0.2 C
-0.80 C
1981
1.9 C
+1.26 C
1982
0.0 C
-0.66 C
1983
1.0 C
+0.33 C
The fitted trend in annual mean temperature here over 1939 to 1983 is -0.15 C (-0.33 to 0.03) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.3 F (-0.6 to 0.1) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Kapuskasing A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.15 C (-0.33 to 0.03) per decade
-0.3 F (-0.6 to 0.1) per decade
1939 to 1983
44
Not clearly different from zero
Mean daily maximum
0.01 C (-0.15 to 0.17) per decade
0.02 F (-0.27 to 0.31) per decade
1939 to 1983
44
Not clearly different from zero
Mean daily minimum
-0.3 C (-0.5 to -0.1) per decade
-0.6 F (-1.0 to -0.2) per decade
1939 to 1983
44
Fall
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
1937 to 1983
Yearly extremes at Kapuskasing A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.7 C (98.1 F)
1975
32.8 C (91.0 F)
47
Coldest night (TNn)
-45.3 C (-49.5 F)
1982
-40.0 C (-40.0 F)
47
Wettest day (Rx1day)
79.0 mm (3.1 in)
1962
43.9 mm (1.7 in)
47
Wettest five days (Rx5day)
107.7 mm (4.2 in)
1968
67.3 mm (2.6 in)
47
Longest dry spell (CDD)
26 days
1961
16 days
47
Hottest day (TXx)
The hottest day of the year at Kapuskasing A, 1937 to 1983. The record is 36.7 C (98.1 F) in 1975, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Kapuskasing A by year
Year
Hottest day (TXx)
1937
35.0 C (95.0 F)
1938
32.8 C (91.0 F)
1939
32.2 C (90.0 F)
1940
32.2 C (90.0 F)
1941
34.4 C (93.9 F)
1942
32.2 C (90.0 F)
1943
33.3 C (91.9 F)
1944
33.3 C (91.9 F)
1945
31.1 C (88.0 F)
1946
31.1 C (88.0 F)
1947
35.0 C (95.0 F)
1948
32.2 C (90.0 F)
1949
33.9 C (93.0 F)
1950
30.0 C (86.0 F)
1951
30.0 C (86.0 F)
1952
32.8 C (91.0 F)
1953
33.3 C (91.9 F)
1954
31.7 C (89.1 F)
1955
35.0 C (95.0 F)
1956
36.1 C (97.0 F)
1957
30.6 C (87.1 F)
1958
28.9 C (84.0 F)
1959
33.3 C (91.9 F)
1960
30.0 C (86.0 F)
1961
30.6 C (87.1 F)
1962
32.8 C (91.0 F)
1963
34.4 C (93.9 F)
1964
33.9 C (93.0 F)
1965
31.7 C (89.1 F)
1966
33.3 C (91.9 F)
1967
30.6 C (87.1 F)
1968
31.7 C (89.1 F)
1969
32.8 C (91.0 F)
1970
32.2 C (90.0 F)
1971
35.6 C (96.1 F)
1972
32.2 C (90.0 F)
1973
30.0 C (86.0 F)
1974
33.3 C (91.9 F)
1975
36.7 C (98.1 F)
1976
34.4 C (93.9 F)
1977
33.3 C (91.9 F)
1978
33.1 C (91.6 F)
1979
33.2 C (91.8 F)
1980
32.1 C (89.8 F)
1981
34.2 C (93.6 F)
1982
30.2 C (86.4 F)
1983
33.0 C (91.4 F)
Coldest night (TNn)
The coldest night of the year at Kapuskasing A, 1937 to 1983. The record is -45.3 C (-49.5 F) in 1982, marked on the chart; the median year is -40.0 C (-40.0 F).
Coldest night (TNn) at Kapuskasing A by year
Year
Coldest night (TNn)
1937
-35.0 C (-31.0 F)
1938
-42.2 C (-44.0 F)
1939
-41.1 C (-42.0 F)
1940
-34.4 C (-29.9 F)
1941
-41.7 C (-43.1 F)
1942
-40.6 C (-41.1 F)
1943
-40.6 C (-41.1 F)
1944
-36.7 C (-34.1 F)
1945
-38.9 C (-38.0 F)
1946
-39.4 C (-38.9 F)
1947
-35.6 C (-32.1 F)
1948
-40.0 C (-40.0 F)
1949
-37.8 C (-36.0 F)
1950
-38.9 C (-38.0 F)
1951
-38.3 C (-36.9 F)
1952
-36.1 C (-33.0 F)
1953
-41.7 C (-43.1 F)
1954
-37.8 C (-36.0 F)
1955
-40.0 C (-40.0 F)
1956
-36.1 C (-33.0 F)
1957
-38.9 C (-38.0 F)
1958
-40.0 C (-40.0 F)
1959
-35.6 C (-32.1 F)
1960
-38.9 C (-38.0 F)
1961
-41.1 C (-42.0 F)
1962
-41.7 C (-43.1 F)
1963
-42.8 C (-45.0 F)
1964
-40.6 C (-41.1 F)
1965
-43.3 C (-45.9 F)
1966
-38.9 C (-38.0 F)
1967
-43.3 C (-45.9 F)
1968
-44.4 C (-47.9 F)
1969
-35.0 C (-31.0 F)
1970
-41.7 C (-43.1 F)
1971
-37.8 C (-36.0 F)
1972
-38.9 C (-38.0 F)
1973
-40.6 C (-41.1 F)
1974
-41.1 C (-42.0 F)
1975
-44.4 C (-47.9 F)
1976
-42.2 C (-44.0 F)
1977
-37.0 C (-34.6 F)
1978
-38.8 C (-37.8 F)
1979
-41.1 C (-42.0 F)
1980
-39.5 C (-39.1 F)
1981
-40.4 C (-40.7 F)
1982
-45.3 C (-49.5 F)
1983
-41.3 C (-42.3 F)
Wettest day (Rx1day)
The wettest day of the year at Kapuskasing A, 1937 to 1983. The record is 79.0 mm (3.1 in) in 1962, marked on the chart; the median year is 43.9 mm (1.7 in).
Wettest day (Rx1day) at Kapuskasing A by year
Year
Wettest day (Rx1day)
1937
21.1 mm (0.8 in)
1938
71.1 mm (2.8 in)
1939
65.3 mm (2.6 in)
1940
54.1 mm (2.1 in)
1941
62.0 mm (2.4 in)
1942
54.6 mm (2.1 in)
1943
33.0 mm (1.3 in)
1944
40.6 mm (1.6 in)
1945
22.4 mm (0.9 in)
1946
29.0 mm (1.1 in)
1947
32.0 mm (1.3 in)
1948
39.9 mm (1.6 in)
1949
25.7 mm (1.0 in)
1950
45.0 mm (1.8 in)
1951
27.9 mm (1.1 in)
1952
37.8 mm (1.5 in)
1953
43.9 mm (1.7 in)
1954
45.0 mm (1.8 in)
1955
42.9 mm (1.7 in)
1956
44.7 mm (1.8 in)
1957
46.0 mm (1.8 in)
1958
50.3 mm (2.0 in)
1959
43.9 mm (1.7 in)
1960
58.9 mm (2.3 in)
1961
57.9 mm (2.3 in)
1962
79.0 mm (3.1 in)
1963
63.5 mm (2.5 in)
1964
64.8 mm (2.6 in)
1965
39.4 mm (1.6 in)
1966
44.7 mm (1.8 in)
1967
30.7 mm (1.2 in)
1968
66.8 mm (2.6 in)
1969
65.3 mm (2.6 in)
1970
26.4 mm (1.0 in)
1971
45.5 mm (1.8 in)
1972
30.2 mm (1.2 in)
1973
42.2 mm (1.7 in)
1974
38.4 mm (1.5 in)
1975
34.8 mm (1.4 in)
1976
26.2 mm (1.0 in)
1977
35.1 mm (1.4 in)
1978
39.1 mm (1.5 in)
1979
68.4 mm (2.7 in)
1980
30.5 mm (1.2 in)
1981
44.8 mm (1.8 in)
1982
55.2 mm (2.2 in)
1983
40.6 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Kapuskasing A, 1937 to 1983. The record is 107.7 mm (4.2 in) in 1968, marked on the chart; the median year is 67.3 mm (2.6 in).
Wettest five days (Rx5day) at Kapuskasing A by year
Year
Wettest five days (Rx5day)
1937
42.9 mm (1.7 in)
1938
89.2 mm (3.5 in)
1939
77.5 mm (3.1 in)
1940
68.8 mm (2.7 in)
1941
78.9 mm (3.1 in)
1942
67.3 mm (2.6 in)
1943
65.0 mm (2.6 in)
1944
51.1 mm (2.0 in)
1945
57.8 mm (2.3 in)
1946
80.6 mm (3.2 in)
1947
44.8 mm (1.8 in)
1948
56.3 mm (2.2 in)
1949
49.0 mm (1.9 in)
1950
81.1 mm (3.2 in)
1951
51.4 mm (2.0 in)
1952
65.3 mm (2.6 in)
1953
72.3 mm (2.8 in)
1954
78.0 mm (3.1 in)
1955
64.7 mm (2.5 in)
1956
57.9 mm (2.3 in)
1957
75.2 mm (3.0 in)
1958
67.3 mm (2.6 in)
1959
67.2 mm (2.6 in)
1960
73.4 mm (2.9 in)
1961
85.4 mm (3.4 in)
1962
96.7 mm (3.8 in)
1963
91.2 mm (3.6 in)
1964
73.2 mm (2.9 in)
1965
66.6 mm (2.6 in)
1966
60.8 mm (2.4 in)
1967
53.1 mm (2.1 in)
1968
107.7 mm (4.2 in)
1969
96.3 mm (3.8 in)
1970
48.0 mm (1.9 in)
1971
61.0 mm (2.4 in)
1972
48.8 mm (1.9 in)
1973
88.1 mm (3.5 in)
1974
47.3 mm (1.9 in)
1975
43.7 mm (1.7 in)
1976
41.3 mm (1.6 in)
1977
68.3 mm (2.7 in)
1978
65.6 mm (2.6 in)
1979
103.6 mm (4.1 in)
1980
65.4 mm (2.6 in)
1981
75.1 mm (3.0 in)
1982
82.1 mm (3.2 in)
1983
97.4 mm (3.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Kapuskasing A, 1937 to 1983. The record is 26 days in 1961, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Kapuskasing A by year
Year
Longest dry spell (CDD)
1937
14 days
1938
18 days
1939
20 days
1940
17 days
1941
19 days
1942
16 days
1943
15 days
1944
19 days
1945
18 days
1946
17 days
1947
14 days
1948
18 days
1949
25 days
1950
18 days
1951
17 days
1952
11 days
1953
20 days
1954
9 days
1955
17 days
1956
16 days
1957
19 days
1958
17 days
1959
11 days
1960
19 days
1961
26 days
1962
16 days
1963
15 days
1964
11 days
1965
20 days
1966
9 days
1967
15 days
1968
15 days
1969
21 days
1970
11 days
1971
15 days
1972
21 days
1973
15 days
1974
10 days
1975
19 days
1976
15 days
1977
13 days
1978
24 days
1979
16 days
1980
17 days
1981
14 days
1982
11 days
1983
16 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
44 years with a frost
Across 44 years with a frost, the median last spring frost at Kapuskasing A falls on 11 June and the median first autumn frost on 8 September, which leaves a median of 91 days between them.
Fitted over all years, the growing season changes by +0.8 days per decade at this station.
Frost dates and growing season at Kapuskasing A
Measure
Median, all years
Earliest period
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
11 June
n/a
11 June
n/a
-0.8 days per decade
First autumn frost
8 September
n/a
8 September
n/a
-0.1 days per decade
Growing days
91 days
n/a
90 days
n/a
+0.8 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
46 years, 1938 to 1983
A day with at least 43.6 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 86.5 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Kapuskasing A: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
43.6 mm (1.7 in)
5 years
56.6 mm (2.2 in)
10 years
64.6 mm (2.5 in)
25 years
74.0 mm (2.9 in)
50 years
80.4 mm (3.2 in)
Longer than the 46 years of record
100 years
86.5 mm (3.4 in)
Longer than the 46 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, 46 years of values from 1938 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: 79.0 mm (3.1 in) in 1962; 71.1 mm (2.8 in) in 1938; 68.4 mm (2.7 in) in 1979.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Kapuskasing A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Kapuskasing A 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.