Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Magnetawan. 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 Magnetawan, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.2 C (54.0 F)
-42.8 C (-45.0 F)
n/a
n/a
Feb
12.2 C (54.0 F)
-42.8 C (-45.0 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Apr
28.9 C (84.0 F)
-27.2 C (-17.0 F)
n/a
n/a
May
29.4 C (84.9 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
33.3 C (91.9 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
33.9 C (93.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
28.3 C (82.9 F)
-12.2 C (10.0 F)
n/a
n/a
Nov
21.7 C (71.1 F)
-31.1 C (-24.0 F)
n/a
n/a
Dec
15.0 C (59.0 F)
-46.1 C (-51.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Magnetawan still stand. 1934 holds the most, with 62.
Standing records at Magnetawan by the year they were set
Year set
Standing records
1924
33
1925
40
1926
47
1927
49
1928
38
1929
48
1930
48
1931
53
1932
42
1933
45
1934
62
1935
32
1936
62
1937
29
1938
39
1939
35
1940
31
1941
34
1942
47
1943
39
1944
36
1945
59
1946
60
1947
46
1948
31
1949
53
1950
37
1951
49
1952
26
1953
37
1954
44
1955
29
1956
45
1957
39
1958
20
Wettest Day of Each Month
Sep: 77.2 mm (3.0 in)
The wettest day on record for each calendar month at Magnetawan. The most was 77.2 mm (3.0 in) on 19 September 1953.
Record daily precipitation for each month at Magnetawan
Month
Record daily precipitation (mm)
Date
Jan
29.5 mm (1.2 in)
13 January 1950
Feb
24.1 mm (0.9 in)
24 February 1956
Mar
41.9 mm (1.6 in)
16 March 1943
Apr
43.9 mm (1.7 in)
24 April 1957
May
42.2 mm (1.7 in)
16 May 1943
Jun
40.9 mm (1.6 in)
18 June 1934
Jul
48.5 mm (1.9 in)
8 July 1932
Aug
44.5 mm (1.8 in)
15 August 1936
Sep
77.2 mm (3.0 in)
19 September 1953
Oct
61.2 mm (2.4 in)
24 October 1951
Nov
33.0 mm (1.3 in)
8 November 1937
Dec
47.5 mm (1.9 in)
27 December 1936
Period of Record Coverage
1924 to 1958
Complete yearUnder 90 percent of days
35 years of record at Magnetawan, 1924 to 1958. 2 years have data for under 90 percent of days and are left out of rankings: 1957, 1958.
Cooler than the station meanWarmer than the station mean
One stripe for each of 30 complete years at Magnetawan, 1924 to 1956. Blue stripes are years cooler than the station's own mean of 4.3 C (39.7 F); red stripes are warmer. The coolest year was 1926, at 2.3 C (36.2 F), and the warmest was 1931, at 5.9 C (42.5 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Magnetawan as warming stripes, 1924 to 1956
Year
Annual mean temperature
Difference from the station mean
1924
3.1 C
-1.12 C
1925
3.8 C
-0.47 C
1926
2.3 C
-1.94 C
1927
4.4 C
+0.09 C
1928
3.7 C
-0.58 C
1929
3.3 C
-1.00 C
1930
4.8 C
+0.54 C
1931
5.9 C
+1.59 C
1932
4.9 C
+0.60 C
1933
4.3 C
+0.02 C
1934
3.4 C
-0.87 C
1935
3.5 C
-0.74 C
1936
3.6 C
-0.63 C
1937
4.9 C
+0.64 C
1938
5.0 C
+0.70 C
1939
4.0 C
-0.29 C
1941
4.9 C
+0.59 C
1942
4.7 C
+0.41 C
1943
3.3 C
-0.96 C
1944
4.7 C
+0.47 C
1945
4.4 C
+0.14 C
1946
4.8 C
+0.56 C
1947
4.3 C
+0.03 C
1948
4.7 C
+0.42 C
1949
5.2 C
+0.92 C
1950
4.0 C
-0.24 C
1951
4.5 C
+0.25 C
1954
4.5 C
+0.28 C
1955
5.1 C
+0.87 C
1956
3.9 C
-0.38 C
The annual mean temperature here has risen by 0.30 C (0.02 to 0.58) per decade over 1924 to 1956. In Fahrenheit: 0.54 F (0.03 to 1.05) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Magnetawan
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.30 C (0.02 to 0.58) per decade
0.54 F (0.03 to 1.05) per decade
1924 to 1956
30
Rise
Mean daily maximum
0.3 C (0.1 to 0.6) per decade
0.6 F (0.1 to 1.1) per decade
1924 to 1956
30
Rise
Mean daily minimum
0.26 C (-0.04 to 0.55) per decade
0.5 F (-0.1 to 1.0) per decade
1924 to 1956
30
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
1924 to 1958
Yearly extremes at Magnetawan: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.2 C (99.0 F)
1931
31.7 C (89.1 F)
35
Coldest night (TNn)
-46.1 C (-51.0 F)
1933
-36.7 C (-34.1 F)
35
Wettest day (Rx1day)
77.2 mm (3.0 in)
1953
36.1 mm (1.4 in)
35
Wettest five days (Rx5day)
118.0 mm (4.6 in)
1948
59.7 mm (2.3 in)
34
Longest dry spell (CDD)
19 days
1949
14 days
35
Hottest day (TXx)
The hottest day of the year at Magnetawan, 1924 to 1958. The record is 37.2 C (99.0 F) in 1931, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Magnetawan by year
Year
Hottest day (TXx)
1924
28.9 C (84.0 F)
1925
32.8 C (91.0 F)
1926
28.9 C (84.0 F)
1927
35.0 C (95.0 F)
1928
30.6 C (87.1 F)
1929
31.7 C (89.1 F)
1930
29.4 C (84.9 F)
1931
37.2 C (99.0 F)
1932
31.1 C (88.0 F)
1933
32.8 C (91.0 F)
1934
32.2 C (90.0 F)
1935
32.8 C (91.0 F)
1936
35.6 C (96.1 F)
1937
32.2 C (90.0 F)
1938
32.2 C (90.0 F)
1939
32.2 C (90.0 F)
1940
31.7 C (89.1 F)
1941
32.8 C (91.0 F)
1942
31.1 C (88.0 F)
1943
31.7 C (89.1 F)
1944
33.3 C (91.9 F)
1945
31.1 C (88.0 F)
1946
31.1 C (88.0 F)
1947
32.8 C (91.0 F)
1948
33.9 C (93.0 F)
1949
31.7 C (89.1 F)
1950
29.4 C (84.9 F)
1951
31.1 C (88.0 F)
1952
31.7 C (89.1 F)
1953
34.4 C (93.9 F)
1954
30.6 C (87.1 F)
1955
34.4 C (93.9 F)
1956
30.6 C (87.1 F)
1957
31.7 C (89.1 F)
1958
25.6 C (78.1 F)
Coldest night (TNn)
The coldest night of the year at Magnetawan, 1924 to 1958. The record is -46.1 C (-51.0 F) in 1933, marked on the chart; the median year is -36.7 C (-34.1 F).
Coldest night (TNn) at Magnetawan by year
Year
Coldest night (TNn)
1924
-38.9 C (-38.0 F)
1925
-35.6 C (-32.1 F)
1926
-36.1 C (-33.0 F)
1927
-35.6 C (-32.1 F)
1928
-35.0 C (-31.0 F)
1929
-35.6 C (-32.1 F)
1930
-37.8 C (-36.0 F)
1931
-36.1 C (-33.0 F)
1932
-36.7 C (-34.1 F)
1933
-46.1 C (-51.0 F)
1934
-41.1 C (-42.0 F)
1935
-40.0 C (-40.0 F)
1936
-35.6 C (-32.1 F)
1937
-30.0 C (-22.0 F)
1938
-35.6 C (-32.1 F)
1939
-38.3 C (-36.9 F)
1940
-35.0 C (-31.0 F)
1941
-36.7 C (-34.1 F)
1942
-42.8 C (-45.0 F)
1943
-38.3 C (-36.9 F)
1944
-33.3 C (-27.9 F)
1945
-42.2 C (-44.0 F)
1946
-35.6 C (-32.1 F)
1947
-40.6 C (-41.1 F)
1948
-39.4 C (-38.9 F)
1949
-32.8 C (-27.0 F)
1950
-37.8 C (-36.0 F)
1951
-42.8 C (-45.0 F)
1952
-38.3 C (-36.9 F)
1953
-31.7 C (-25.1 F)
1954
-35.6 C (-32.1 F)
1955
-37.8 C (-36.0 F)
1956
-30.0 C (-22.0 F)
1957
-37.2 C (-35.0 F)
1958
-33.3 C (-27.9 F)
Wettest day (Rx1day)
The wettest day of the year at Magnetawan, 1924 to 1958. The record is 77.2 mm (3.0 in) in 1953, marked on the chart; the median year is 36.1 mm (1.4 in).
Wettest day (Rx1day) at Magnetawan by year
Year
Wettest day (Rx1day)
1924
25.4 mm (1.0 in)
1925
21.8 mm (0.9 in)
1926
21.6 mm (0.9 in)
1927
32.8 mm (1.3 in)
1928
37.6 mm (1.5 in)
1929
32.3 mm (1.3 in)
1930
40.6 mm (1.6 in)
1931
71.9 mm (2.8 in)
1932
48.5 mm (1.9 in)
1933
27.9 mm (1.1 in)
1934
40.9 mm (1.6 in)
1935
34.3 mm (1.4 in)
1936
47.5 mm (1.9 in)
1937
33.0 mm (1.3 in)
1938
32.8 mm (1.3 in)
1939
42.4 mm (1.7 in)
1940
37.3 mm (1.5 in)
1941
33.0 mm (1.3 in)
1942
34.3 mm (1.4 in)
1943
42.2 mm (1.7 in)
1944
39.9 mm (1.6 in)
1945
30.5 mm (1.2 in)
1946
26.7 mm (1.1 in)
1947
37.6 mm (1.5 in)
1948
32.3 mm (1.3 in)
1949
28.2 mm (1.1 in)
1950
29.5 mm (1.2 in)
1951
61.2 mm (2.4 in)
1952
36.1 mm (1.4 in)
1953
77.2 mm (3.0 in)
1954
53.1 mm (2.1 in)
1955
38.9 mm (1.5 in)
1956
38.4 mm (1.5 in)
1957
43.9 mm (1.7 in)
1958
17.8 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Magnetawan, 1924 to 1958. The record is 118.0 mm (4.6 in) in 1948, marked on the chart; the median year is 59.7 mm (2.3 in).
Wettest five days (Rx5day) at Magnetawan by year
Year
Wettest five days (Rx5day)
1924
35.6 mm (1.4 in)
1925
43.2 mm (1.7 in)
1926
40.1 mm (1.6 in)
1927
55.0 mm (2.2 in)
1928
70.1 mm (2.8 in)
1929
50.8 mm (2.0 in)
1930
71.1 mm (2.8 in)
1931
30.5 mm (1.2 in)
1932
70.1 mm (2.8 in)
1933
59.9 mm (2.4 in)
1934
49.0 mm (1.9 in)
1935
64.8 mm (2.6 in)
1936
89.0 mm (3.5 in)
1937
54.7 mm (2.2 in)
1938
49.3 mm (1.9 in)
1939
54.8 mm (2.2 in)
1940
62.6 mm (2.5 in)
1941
59.4 mm (2.3 in)
1942
74.5 mm (2.9 in)
1943
57.4 mm (2.3 in)
1944
63.6 mm (2.5 in)
1945
46.7 mm (1.8 in)
1946
49.6 mm (2.0 in)
1947
54.4 mm (2.1 in)
1948
118.0 mm (4.6 in)
1949
52.5 mm (2.1 in)
1950
57.0 mm (2.2 in)
1951
70.6 mm (2.8 in)
1952
75.9 mm (3.0 in)
1953
96.2 mm (3.8 in)
1954
91.5 mm (3.6 in)
1955
83.6 mm (3.3 in)
1956
79.8 mm (3.1 in)
1957
98.6 mm (3.9 in)
1958
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Magnetawan, 1924 to 1958. The record is 19 days in 1949, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Magnetawan by year
Year
Longest dry spell (CDD)
1924
18 days
1925
12 days
1926
12 days
1927
14 days
1928
7 days
1929
17 days
1930
13 days
1931
13 days
1932
12 days
1933
16 days
1934
11 days
1935
13 days
1936
16 days
1937
13 days
1938
8 days
1939
18 days
1940
10 days
1941
18 days
1942
15 days
1943
11 days
1944
18 days
1945
13 days
1946
11 days
1947
13 days
1948
17 days
1949
19 days
1950
17 days
1951
18 days
1952
18 days
1953
14 days
1954
15 days
1955
13 days
1956
14 days
1957
19 days
1958
1 day
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
30 years with a frost
Across 30 years with a frost, the median last spring frost at Magnetawan falls on 31 May and the median first autumn frost on 19 September, which leaves a median of 109 days between them.
Fitted over all years, the growing season changes by -1.7 days per decade at this station.
Frost dates and growing season at Magnetawan
Measure
Median, all years
Earliest period
Recent period (1924 to 1956)
Recent against earliest
Fitted trend
Last spring frost
31 May
n/a
31 May
n/a
-1.2 days per decade
First autumn frost
19 September
n/a
19 September
n/a
-2.9 days per decade
Growing days
109 days
n/a
109 days
n/a
-1.7 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.
Download the Data
Data for Magnetawan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Magnetawan 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.