Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Mount Forest. 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 Mount Forest, 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)
-34.8 C (-30.6 F)
n/a
n/a
Feb
12.8 C (55.0 F)
-41.1 C (-42.0 F)
n/a
n/a
Mar
23.3 C (73.9 F)
-27.8 C (-18.0 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-22.8 C (-9.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-5.6 C (21.9 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
36.7 C (98.1 F)
1.1 C (34.0 F)
n/a
n/a
Aug
36.1 C (97.0 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-12.8 C (9.0 F)
n/a
n/a
Nov
22.8 C (73.0 F)
-27.2 C (-17.0 F)
n/a
n/a
Dec
17.6 C (63.7 F)
-31.1 C (-24.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mount Forest still stand. 1930 holds the most, with 51.
Standing records at Mount Forest by the year they were set
Year set
Standing records
1915
9
1916
34
1917
31
1918
31
1919
35
1920
30
1921
35
1922
11
1923
37
1924
15
1925
40
1926
35
1927
29
1928
26
1929
33
1930
51
1931
35
1932
41
1933
29
1934
46
1935
28
1936
48
1937
22
1938
28
1939
17
1940
22
1941
30
1942
17
1943
24
1944
17
1945
41
1946
28
1947
23
1948
9
1962
23
1963
27
1964
22
1965
30
1966
21
1967
25
1968
19
1969
17
1970
15
1971
14
1972
16
1973
26
1974
14
1975
24
1976
31
1977
22
1978
11
1979
33
1980
12
1981
27
1982
24
1983
24
Wettest Day of Each Month
Jul: 83.6 mm (3.3 in)
The wettest day on record for each calendar month at Mount Forest. The most was 83.6 mm (3.3 in) on 8 July 1921.
Record daily precipitation for each month at Mount Forest
Month
Record daily precipitation (mm)
Date
Jan
45.7 mm (1.8 in)
1 January 1925
Feb
38.1 mm (1.5 in)
26 February 1946
Mar
49.8 mm (2.0 in)
17 March 1942
Apr
52.0 mm (2.0 in)
13 April 1979
May
70.1 mm (2.8 in)
11 May 1943
Jun
49.5 mm (1.9 in)
16 June 1938
Jul
83.6 mm (3.3 in)
8 July 1921
Aug
81.2 mm (3.2 in)
16 August 1977
Sep
56.9 mm (2.2 in)
19 September 1942
Oct
54.9 mm (2.2 in)
14 October 1893
Nov
55.6 mm (2.2 in)
5 November 1935
Dec
31.2 mm (1.2 in)
12 December 1972
Period of Record Coverage
1915 to 1983
Complete yearUnder 90 percent of days
56 years of record at Mount Forest, 1915 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1915, 1922, 1948, 1980.
Cooler than the station meanWarmer than the station mean
One stripe for each of 52 complete years at Mount Forest, 1916 to 1983. Blue stripes are years cooler than the station's own mean of 5.5 C (41.8 F); red stripes are warmer. The coolest year was 1926, at 3.9 C (39.1 F), and the warmest was 1921, at 7.8 C (46.0 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Mount Forest as warming stripes, 1916 to 1983
Year
Annual mean temperature
Difference from the station mean
1916
6.0 C
+0.57 C
1917
4.2 C
-1.28 C
1918
5.9 C
+0.43 C
1919
6.4 C
+0.92 C
1920
5.3 C
-0.22 C
1921
7.8 C
+2.32 C
1923
5.4 C
-0.11 C
1924
4.6 C
-0.89 C
1925
5.5 C
+0.00 C
1926
3.9 C
-1.55 C
1927
5.8 C
+0.37 C
1928
5.5 C
+0.04 C
1929
5.1 C
-0.42 C
1930
6.0 C
+0.53 C
1931
7.2 C
+1.70 C
1932
6.2 C
+0.77 C
1933
6.3 C
+0.78 C
1934
5.1 C
-0.37 C
1935
5.4 C
-0.10 C
1936
5.2 C
-0.29 C
1937
5.8 C
+0.35 C
1938
6.7 C
+1.20 C
1939
6.0 C
+0.57 C
1940
4.8 C
-0.72 C
1941
6.1 C
+0.61 C
1942
5.8 C
+0.28 C
1943
4.6 C
-0.90 C
1944
6.1 C
+0.64 C
1945
5.1 C
-0.36 C
1946
5.9 C
+0.42 C
1947
4.8 C
-0.65 C
1962
5.2 C
-0.27 C
1963
4.7 C
-0.75 C
1964
5.7 C
+0.19 C
1965
4.8 C
-0.69 C
1966
5.2 C
-0.29 C
1967
4.9 C
-0.62 C
1968
5.3 C
-0.16 C
1969
5.1 C
-0.37 C
1970
5.2 C
-0.23 C
1971
5.6 C
+0.16 C
1972
4.5 C
-0.94 C
1973
6.5 C
+1.04 C
1974
5.2 C
-0.26 C
1975
6.0 C
+0.51 C
1976
4.7 C
-0.80 C
1977
5.5 C
-0.02 C
1978
4.4 C
-1.06 C
1979
5.1 C
-0.33 C
1981
5.3 C
-0.22 C
1982
5.2 C
-0.28 C
1983
6.0 C
+0.50 C
The fitted trend in annual mean temperature here over 1916 to 1983 is -0.08 C (-0.18 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.15 F (-0.32 to 0.02) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Mount Forest
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.08 C (-0.18 to 0.01) per decade
-0.15 F (-0.32 to 0.02) per decade
1916 to 1983
52
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.3 to -0.1) per decade
-0.3 F (-0.5 to -0.1) per decade
1916 to 1983
52
Fall
Mean daily minimum
0.01 C (-0.09 to 0.11) per decade
0.02 F (-0.16 to 0.20) per decade
1916 to 1983
52
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
1891 to 1983
Yearly extremes at Mount Forest: 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)
1936
32.2 C (90.0 F)
56
Coldest night (TNn)
-41.1 C (-42.0 F)
1934
-28.4 C (-19.1 F)
56
Wettest day (Rx1day)
83.6 mm (3.3 in)
1921
40.4 mm (1.6 in)
64
Wettest five days (Rx5day)
97.9 mm (3.9 in)
1923
64.8 mm (2.6 in)
64
Longest dry spell (CDD)
32 days
1924
16 days
64
Hottest day (TXx)
The hottest day of the year at Mount Forest, 1891 to 1983. The record is 36.7 C (98.1 F) in 1936, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Mount Forest by year
Year
Hottest day (TXx)
1891
n/a
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1915
32.2 C (90.0 F)
1916
35.6 C (96.1 F)
1917
34.4 C (93.9 F)
1918
36.1 C (97.0 F)
1919
33.9 C (93.0 F)
1920
31.1 C (88.0 F)
1921
34.4 C (93.9 F)
1922
29.4 C (84.9 F)
1923
32.8 C (91.0 F)
1924
31.1 C (88.0 F)
1925
33.3 C (91.9 F)
1926
32.2 C (90.0 F)
1927
33.9 C (93.0 F)
1928
32.2 C (90.0 F)
1929
32.2 C (90.0 F)
1930
32.8 C (91.0 F)
1931
36.1 C (97.0 F)
1932
32.8 C (91.0 F)
1933
36.1 C (97.0 F)
1934
35.0 C (95.0 F)
1935
32.8 C (91.0 F)
1936
36.7 C (98.1 F)
1937
32.2 C (90.0 F)
1938
32.8 C (91.0 F)
1939
33.3 C (91.9 F)
1940
32.8 C (91.0 F)
1941
35.6 C (96.1 F)
1942
30.6 C (87.1 F)
1943
31.1 C (88.0 F)
1944
35.6 C (96.1 F)
1945
32.8 C (91.0 F)
1946
32.2 C (90.0 F)
1947
32.8 C (91.0 F)
1948
32.2 C (90.0 F)
1962
30.0 C (86.0 F)
1963
31.1 C (88.0 F)
1964
31.1 C (88.0 F)
1965
31.7 C (89.1 F)
1966
31.7 C (89.1 F)
1967
28.3 C (82.9 F)
1968
31.1 C (88.0 F)
1969
31.1 C (88.0 F)
1970
29.4 C (84.9 F)
1971
32.2 C (90.0 F)
1972
30.6 C (87.1 F)
1973
32.8 C (91.0 F)
1974
31.1 C (88.0 F)
1975
32.2 C (90.0 F)
1976
30.0 C (86.0 F)
1977
32.5 C (90.5 F)
1978
30.9 C (87.6 F)
1979
30.3 C (86.5 F)
1980
29.0 C (84.2 F)
1981
30.1 C (86.2 F)
1982
29.0 C (84.2 F)
1983
31.2 C (88.2 F)
Coldest night (TNn)
The coldest night of the year at Mount Forest, 1891 to 1983. The record is -41.1 C (-42.0 F) in 1934, marked on the chart; the median year is -28.4 C (-19.1 F).
Coldest night (TNn) at Mount Forest by year
Year
Coldest night (TNn)
1891
n/a
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1915
-17.8 C (0.0 F)
1916
-30.6 C (-23.1 F)
1917
-30.0 C (-22.0 F)
1918
-34.4 C (-29.9 F)
1919
-25.0 C (-13.0 F)
1920
-31.1 C (-24.0 F)
1921
-25.6 C (-14.1 F)
1922
-21.1 C (-6.0 F)
1923
-26.1 C (-15.0 F)
1924
-26.7 C (-16.1 F)
1925
-28.9 C (-20.0 F)
1926
-26.7 C (-16.1 F)
1927
-31.1 C (-24.0 F)
1928
-27.8 C (-18.0 F)
1929
-31.7 C (-25.1 F)
1930
-28.9 C (-20.0 F)
1931
-25.0 C (-13.0 F)
1932
-26.7 C (-16.1 F)
1933
-31.1 C (-24.0 F)
1934
-41.1 C (-42.0 F)
1935
-32.8 C (-27.0 F)
1936
-28.9 C (-20.0 F)
1937
-24.4 C (-11.9 F)
1938
-26.1 C (-15.0 F)
1939
-32.2 C (-26.0 F)
1940
-33.3 C (-27.9 F)
1941
-30.0 C (-22.0 F)
1942
-28.3 C (-18.9 F)
1943
-33.3 C (-27.9 F)
1944
-23.3 C (-9.9 F)
1945
-32.2 C (-26.0 F)
1946
-30.0 C (-22.0 F)
1947
-24.4 C (-11.9 F)
1948
-33.3 C (-27.9 F)
1962
-26.1 C (-15.0 F)
1963
-30.6 C (-23.1 F)
1964
-23.3 C (-9.9 F)
1965
-29.4 C (-20.9 F)
1966
-26.1 C (-15.0 F)
1967
-26.1 C (-15.0 F)
1968
-25.6 C (-14.1 F)
1969
-24.4 C (-11.9 F)
1970
-29.4 C (-20.9 F)
1971
-24.4 C (-11.9 F)
1972
-25.6 C (-14.1 F)
1973
-26.7 C (-16.1 F)
1974
-24.4 C (-11.9 F)
1975
-26.7 C (-16.1 F)
1976
-34.4 C (-29.9 F)
1977
-34.8 C (-30.6 F)
1978
-31.2 C (-24.2 F)
1979
-32.2 C (-26.0 F)
1980
-28.5 C (-19.3 F)
1981
-32.0 C (-25.6 F)
1982
-26.2 C (-15.2 F)
1983
-25.0 C (-13.0 F)
Wettest day (Rx1day)
The wettest day of the year at Mount Forest, 1891 to 1983. The record is 83.6 mm (3.3 in) in 1921, marked on the chart; the median year is 40.4 mm (1.6 in).
Wettest day (Rx1day) at Mount Forest by year
Year
Wettest day (Rx1day)
1891
28.7 mm (1.1 in)
1892
42.7 mm (1.7 in)
1893
54.9 mm (2.2 in)
1894
38.9 mm (1.5 in)
1895
24.1 mm (0.9 in)
1896
28.4 mm (1.1 in)
1897
41.4 mm (1.6 in)
1898
30.5 mm (1.2 in)
1915
34.3 mm (1.4 in)
1916
55.9 mm (2.2 in)
1917
43.2 mm (1.7 in)
1918
43.2 mm (1.7 in)
1919
38.6 mm (1.5 in)
1920
44.5 mm (1.8 in)
1921
83.6 mm (3.3 in)
1922
37.3 mm (1.5 in)
1923
44.5 mm (1.8 in)
1924
37.6 mm (1.5 in)
1925
45.7 mm (1.8 in)
1926
27.7 mm (1.1 in)
1927
16.5 mm (0.6 in)
1928
13.7 mm (0.5 in)
1929
35.6 mm (1.4 in)
1930
22.9 mm (0.9 in)
1931
27.9 mm (1.1 in)
1932
38.1 mm (1.5 in)
1933
40.1 mm (1.6 in)
1934
22.9 mm (0.9 in)
1935
55.6 mm (2.2 in)
1936
40.4 mm (1.6 in)
1937
46.7 mm (1.8 in)
1938
49.5 mm (1.9 in)
1939
42.4 mm (1.7 in)
1940
36.6 mm (1.4 in)
1941
40.4 mm (1.6 in)
1942
56.9 mm (2.2 in)
1943
70.1 mm (2.8 in)
1944
41.4 mm (1.6 in)
1945
50.3 mm (2.0 in)
1946
38.1 mm (1.5 in)
1947
39.6 mm (1.6 in)
1948
41.9 mm (1.6 in)
1962
45.0 mm (1.8 in)
1963
57.4 mm (2.3 in)
1964
61.2 mm (2.4 in)
1965
35.8 mm (1.4 in)
1966
38.1 mm (1.5 in)
1967
35.3 mm (1.4 in)
1968
58.9 mm (2.3 in)
1969
39.6 mm (1.6 in)
1970
39.9 mm (1.6 in)
1971
34.0 mm (1.3 in)
1972
41.1 mm (1.6 in)
1973
41.4 mm (1.6 in)
1974
40.6 mm (1.6 in)
1975
40.1 mm (1.6 in)
1976
43.4 mm (1.7 in)
1977
81.2 mm (3.2 in)
1978
52.5 mm (2.1 in)
1979
52.0 mm (2.0 in)
1980
49.4 mm (1.9 in)
1981
38.3 mm (1.5 in)
1982
32.0 mm (1.3 in)
1983
39.0 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mount Forest, 1891 to 1983. The record is 97.9 mm (3.9 in) in 1923, marked on the chart; the median year is 64.8 mm (2.6 in).
Wettest five days (Rx5day) at Mount Forest by year
Year
Wettest five days (Rx5day)
1891
72.6 mm (2.9 in)
1892
68.3 mm (2.7 in)
1893
65.6 mm (2.6 in)
1894
69.2 mm (2.7 in)
1895
49.8 mm (2.0 in)
1896
65.2 mm (2.6 in)
1897
56.4 mm (2.2 in)
1898
69.9 mm (2.8 in)
1915
58.3 mm (2.3 in)
1916
55.9 mm (2.2 in)
1917
84.2 mm (3.3 in)
1918
64.8 mm (2.6 in)
1919
50.3 mm (2.0 in)
1920
57.7 mm (2.3 in)
1921
83.6 mm (3.3 in)
1922
55.5 mm (2.2 in)
1923
97.9 mm (3.9 in)
1924
52.6 mm (2.1 in)
1925
70.5 mm (2.8 in)
1926
39.6 mm (1.6 in)
1927
36.8 mm (1.4 in)
1928
27.9 mm (1.1 in)
1929
59.6 mm (2.3 in)
1930
44.0 mm (1.7 in)
1931
32.5 mm (1.3 in)
1932
67.2 mm (2.6 in)
1933
49.0 mm (1.9 in)
1934
43.2 mm (1.7 in)
1935
72.4 mm (2.9 in)
1936
63.2 mm (2.5 in)
1937
58.4 mm (2.3 in)
1938
61.9 mm (2.4 in)
1939
55.4 mm (2.2 in)
1940
78.1 mm (3.1 in)
1941
69.1 mm (2.7 in)
1942
76.7 mm (3.0 in)
1943
79.8 mm (3.1 in)
1944
63.8 mm (2.5 in)
1945
72.3 mm (2.8 in)
1946
50.3 mm (2.0 in)
1947
59.6 mm (2.3 in)
1948
70.1 mm (2.8 in)
1962
55.5 mm (2.2 in)
1963
68.6 mm (2.7 in)
1964
73.7 mm (2.9 in)
1965
55.9 mm (2.2 in)
1966
59.7 mm (2.4 in)
1967
88.3 mm (3.5 in)
1968
86.8 mm (3.4 in)
1969
64.8 mm (2.6 in)
1970
70.1 mm (2.8 in)
1971
45.9 mm (1.8 in)
1972
72.6 mm (2.9 in)
1973
62.0 mm (2.4 in)
1974
75.9 mm (3.0 in)
1975
64.4 mm (2.5 in)
1976
76.9 mm (3.0 in)
1977
91.8 mm (3.6 in)
1978
86.9 mm (3.4 in)
1979
67.6 mm (2.7 in)
1980
68.8 mm (2.7 in)
1981
55.3 mm (2.2 in)
1982
62.0 mm (2.4 in)
1983
78.0 mm (3.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Mount Forest, 1891 to 1983. The record is 32 days in 1924, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Mount Forest by year
Year
Longest dry spell (CDD)
1891
8 days
1892
13 days
1893
12 days
1894
22 days
1895
13 days
1896
11 days
1897
12 days
1898
24 days
1915
10 days
1916
20 days
1917
25 days
1918
16 days
1919
13 days
1920
19 days
1921
12 days
1922
17 days
1923
22 days
1924
32 days
1925
15 days
1926
19 days
1927
24 days
1928
18 days
1929
24 days
1930
17 days
1931
18 days
1932
22 days
1933
16 days
1934
18 days
1935
17 days
1936
24 days
1937
13 days
1938
12 days
1939
20 days
1940
13 days
1941
15 days
1942
16 days
1943
17 days
1944
25 days
1945
16 days
1946
21 days
1947
17 days
1948
20 days
1962
23 days
1963
23 days
1964
14 days
1965
9 days
1966
22 days
1967
20 days
1968
10 days
1969
13 days
1970
15 days
1971
10 days
1972
16 days
1973
25 days
1974
11 days
1975
13 days
1976
14 days
1977
14 days
1978
29 days
1979
17 days
1980
14 days
1981
9 days
1982
15 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
52 years with a frost
Across 52 years with a frost, the median last spring frost at Mount Forest falls on 25 May and the median first autumn frost on 23 September, which leaves a median of 122 days between them.
Fitted over all years, the growing season changes by +3.1 days per decade at this station.
Frost dates and growing season at Mount Forest
Measure
Median, all years
Earliest period
Recent period (1939 to 1983)
Recent against earliest
Fitted trend
Last spring frost
25 May
n/a
23 May
n/a
-1.5 days per decade
First autumn frost
23 September
n/a
23 September
n/a
+1.6 days per decade
Growing days
122 days
n/a
123 days
n/a
+3.1 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
58 years, 1892 to 1983
A day with at least 41.0 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 77.8 mm (3.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Mount Forest: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
41.0 mm (1.6 in)
5 years
52.3 mm (2.1 in)
10 years
59.1 mm (2.3 in)
25 years
67.2 mm (2.6 in)
50 years
72.7 mm (2.9 in)
100 years
77.8 mm (3.1 in)
Longer than the 58 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, 58 years of values from 1892 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: 83.6 mm (3.3 in) in 1921; 81.2 mm (3.2 in) in 1977; 70.1 mm (2.8 in) in 1943.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Mount Forest, at 1926. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1926 ran 0.3 C (0.6 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Mount Forest, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1926
-0.3
-0.6
possible
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 Mount Forest standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mount Forest 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.