Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Biscotasing. 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 Biscotasing, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.7 C (53.1 F)
-47.2 C (-53.0 F)
n/a
n/a
Feb
11.1 C (52.0 F)
-46.7 C (-52.1 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-44.4 C (-47.9 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-39.4 C (-38.9 F)
n/a
n/a
May
33.3 C (91.9 F)
-11.7 C (10.9 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
-2.2 C (28.0 F)
n/a
n/a
Aug
35.6 C (96.1 F)
-3.3 C (26.1 F)
n/a
n/a
Sep
32.8 C (91.0 F)
-9.4 C (15.1 F)
n/a
n/a
Oct
26.1 C (79.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Nov
18.3 C (64.9 F)
-33.9 C (-29.0 F)
n/a
n/a
Dec
13.9 C (57.0 F)
-47.8 C (-54.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Biscotasing still stand. 1923 holds the most, with 63.
Standing records at Biscotasing by the year they were set
Year set
Standing records
1914
46
1915
29
1916
22
1917
30
1918
31
1919
35
1920
36
1921
39
1922
36
1923
63
1924
32
1925
9
1926
5
1928
27
1929
36
1930
42
1931
33
1932
23
1933
21
1934
25
1935
18
1936
42
1937
20
1938
29
1939
24
1940
20
1941
33
1942
26
1943
25
1944
23
1945
38
1946
47
1947
38
1948
25
1949
30
1950
24
1951
26
1952
24
1953
23
1954
15
1955
39
1956
11
1957
14
1958
31
1959
10
1960
13
1961
17
1962
16
1963
19
1965
11
1966
6
1967
8
1968
16
1969
25
1970
10
1971
19
1972
29
Wettest Day of Each Month
Sep: 82.8 mm (3.3 in)
The wettest day on record for each calendar month at Biscotasing. The most was 82.8 mm (3.3 in) on 1 September 1943.
Record daily precipitation for each month at Biscotasing
Month
Record daily precipitation (mm)
Date
Jan
36.0 mm (1.4 in)
4 January 1982
Feb
30.5 mm (1.2 in)
15 February 1918
Mar
55.9 mm (2.2 in)
9 March 1942
Apr
34.8 mm (1.4 in)
25 April 1979
May
62.5 mm (2.5 in)
5 May 1928
Jun
56.4 mm (2.2 in)
17 June 1921
Jul
81.8 mm (3.2 in)
13 July 1956
Aug
60.5 mm (2.4 in)
30 August 1959
Sep
82.8 mm (3.3 in)
1 September 1943
Oct
57.7 mm (2.3 in)
15 October 1954
Nov
46.2 mm (1.8 in)
13 November 1949
Dec
38.6 mm (1.5 in)
2 December 1921
Period of Record Coverage
1914 to 1972
Complete yearUnder 90 percent of days
57 years of record at Biscotasing, 1914 to 1972. 11 years have data for under 90 percent of days and are left out of rankings: 1925, 1926, 1954, 1955, 1956, 1961, 1962, 1963 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 43 complete years at Biscotasing, 1914 to 1971. Blue stripes are years cooler than the station's own mean of 1.9 C (35.5 F); red stripes are warmer. The coolest year was 1924, at -0.4 C (31.3 F), and the warmest was 1931, at 4.4 C (39.9 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Biscotasing as warming stripes, 1914 to 1971
Year
Annual mean temperature
Difference from the station mean
1914
1.3 C
-0.62 C
1915
2.8 C
+0.84 C
1916
1.5 C
-0.43 C
1917
0.4 C
-1.58 C
1918
0.5 C
-1.49 C
1919
0.9 C
-1.02 C
1920
0.8 C
-1.10 C
1921
1.9 C
-0.02 C
1922
0.6 C
-1.39 C
1923
-0.1 C
-2.09 C
1924
-0.4 C
-2.34 C
1928
1.6 C
-0.37 C
1929
1.0 C
-0.93 C
1930
2.6 C
+0.62 C
1931
4.4 C
+2.47 C
1932
3.1 C
+1.16 C
1933
1.8 C
-0.18 C
1934
1.6 C
-0.39 C
1935
1.6 C
-0.36 C
1936
1.2 C
-0.70 C
1937
2.9 C
+1.00 C
1938
3.0 C
+1.04 C
1939
2.1 C
+0.17 C
1940
1.9 C
-0.06 C
1941
2.7 C
+0.79 C
1942
2.7 C
+0.73 C
1943
1.3 C
-0.64 C
1944
3.0 C
+1.07 C
1945
2.1 C
+0.17 C
1946
2.8 C
+0.83 C
1947
2.7 C
+0.79 C
1948
2.9 C
+0.96 C
1949
3.2 C
+1.25 C
1950
1.3 C
-0.64 C
1951
2.4 C
+0.47 C
1952
3.5 C
+1.52 C
1957
2.3 C
+0.35 C
1958
1.8 C
-0.13 C
1959
2.3 C
+0.36 C
1960
2.6 C
+0.66 C
1969
1.9 C
-0.08 C
1970
1.5 C
-0.47 C
1971
1.9 C
-0.03 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.4) per decade over 1914 to 1971. In Fahrenheit: 0.4 F (0.1 to 0.8) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Biscotasing
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.4) per decade
0.4 F (0.1 to 0.8) per decade
1914 to 1971
43
Rise
Mean daily maximum
0.17 C (0.02 to 0.33) per decade
0.31 F (0.03 to 0.59) per decade
1914 to 1971
43
Rise
Mean daily minimum
0.3 C (0.1 to 0.6) per decade
0.6 F (0.1 to 1.1) per decade
1914 to 1971
43
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
1914 to 1983
Yearly extremes at Biscotasing: 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)
1936
31.7 C (89.1 F)
57
Coldest night (TNn)
-47.8 C (-54.0 F)
1933
-41.7 C (-43.1 F)
57
Wettest day (Rx1day)
82.8 mm (3.3 in)
1943
38.1 mm (1.5 in)
63
Wettest five days (Rx5day)
136.7 mm (5.4 in)
1937
61.5 mm (2.4 in)
63
Longest dry spell (CDD)
64 days
1983
16 days
63
Hottest day (TXx)
The hottest day of the year at Biscotasing, 1914 to 1983. The record is 37.2 C (99.0 F) in 1936, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Biscotasing by year
Year
Hottest day (TXx)
1914
35.0 C (95.0 F)
1915
30.6 C (87.1 F)
1916
35.0 C (95.0 F)
1917
33.3 C (91.9 F)
1918
31.1 C (88.0 F)
1919
32.2 C (90.0 F)
1920
28.3 C (82.9 F)
1921
35.6 C (96.1 F)
1922
30.6 C (87.1 F)
1923
31.7 C (89.1 F)
1924
27.8 C (82.0 F)
1925
22.2 C (72.0 F)
1926
-2.2 C (28.0 F)
1928
28.3 C (82.9 F)
1929
32.2 C (90.0 F)
1930
30.6 C (87.1 F)
1931
35.6 C (96.1 F)
1932
34.4 C (93.9 F)
1933
33.3 C (91.9 F)
1934
31.1 C (88.0 F)
1935
33.9 C (93.0 F)
1936
37.2 C (99.0 F)
1937
32.2 C (90.0 F)
1938
30.6 C (87.1 F)
1939
32.8 C (91.0 F)
1940
30.6 C (87.1 F)
1941
32.2 C (90.0 F)
1942
33.3 C (91.9 F)
1943
31.7 C (89.1 F)
1944
31.1 C (88.0 F)
1945
32.2 C (90.0 F)
1946
31.1 C (88.0 F)
1947
33.9 C (93.0 F)
1948
32.2 C (90.0 F)
1949
32.8 C (91.0 F)
1950
31.1 C (88.0 F)
1951
29.4 C (84.9 F)
1952
30.0 C (86.0 F)
1953
31.7 C (89.1 F)
1954
27.8 C (82.0 F)
1955
35.6 C (96.1 F)
1956
33.9 C (93.0 F)
1957
31.7 C (89.1 F)
1958
30.0 C (86.0 F)
1959
32.2 C (90.0 F)
1960
31.7 C (89.1 F)
1961
33.3 C (91.9 F)
1962
33.3 C (91.9 F)
1963
35.6 C (96.1 F)
1965
31.1 C (88.0 F)
1966
33.3 C (91.9 F)
1967
31.1 C (88.0 F)
1968
26.1 C (79.0 F)
1969
32.2 C (90.0 F)
1970
30.6 C (87.1 F)
1971
31.7 C (89.1 F)
1972
30.6 C (87.1 F)
1978
n/a
1979
n/a
1980
n/a
1981
n/a
1982
n/a
1983
n/a
Coldest night (TNn)
The coldest night of the year at Biscotasing, 1914 to 1983. The record is -47.8 C (-54.0 F) in 1933, marked on the chart; the median year is -41.7 C (-43.1 F).
Coldest night (TNn) at Biscotasing by year
Year
Coldest night (TNn)
1914
-46.7 C (-52.1 F)
1915
-38.3 C (-36.9 F)
1916
-36.7 C (-34.1 F)
1917
-44.4 C (-47.9 F)
1918
-41.1 C (-42.0 F)
1919
-42.2 C (-44.0 F)
1920
-43.9 C (-47.0 F)
1921
-42.2 C (-44.0 F)
1922
-41.7 C (-43.1 F)
1923
-42.2 C (-44.0 F)
1924
-47.2 C (-53.0 F)
1925
-41.1 C (-42.0 F)
1926
-37.8 C (-36.0 F)
1928
-45.6 C (-50.1 F)
1929
-42.2 C (-44.0 F)
1930
-42.2 C (-44.0 F)
1931
-37.2 C (-35.0 F)
1932
-34.4 C (-29.9 F)
1933
-47.8 C (-54.0 F)
1934
-46.7 C (-52.1 F)
1935
-45.0 C (-49.0 F)
1936
-42.2 C (-44.0 F)
1937
-36.1 C (-33.0 F)
1938
-41.1 C (-42.0 F)
1939
-42.8 C (-45.0 F)
1940
-37.8 C (-36.0 F)
1941
-39.4 C (-38.9 F)
1942
-46.7 C (-52.1 F)
1943
-45.6 C (-50.1 F)
1944
-35.6 C (-32.1 F)
1945
-43.3 C (-45.9 F)
1946
-39.4 C (-38.9 F)
1947
-42.2 C (-44.0 F)
1948
-40.6 C (-41.1 F)
1949
-37.8 C (-36.0 F)
1950
-41.7 C (-43.1 F)
1951
-43.3 C (-45.9 F)
1952
-42.8 C (-45.0 F)
1953
-36.1 C (-33.0 F)
1954
-42.2 C (-44.0 F)
1955
-45.6 C (-50.1 F)
1956
-32.8 C (-27.0 F)
1957
-42.2 C (-44.0 F)
1958
-36.1 C (-33.0 F)
1959
-39.4 C (-38.9 F)
1960
-38.9 C (-38.0 F)
1961
-38.3 C (-36.9 F)
1962
-33.3 C (-27.9 F)
1963
-33.3 C (-27.9 F)
1965
-42.2 C (-44.0 F)
1966
-36.7 C (-34.1 F)
1967
-36.7 C (-34.1 F)
1968
-42.2 C (-44.0 F)
1969
-38.3 C (-36.9 F)
1970
-43.3 C (-45.9 F)
1971
-41.7 C (-43.1 F)
1972
-43.9 C (-47.0 F)
1978
n/a
1979
n/a
1980
n/a
1981
n/a
1982
n/a
1983
n/a
Wettest day (Rx1day)
The wettest day of the year at Biscotasing, 1914 to 1983. The record is 82.8 mm (3.3 in) in 1943, marked on the chart; the median year is 38.1 mm (1.5 in).
Wettest day (Rx1day) at Biscotasing by year
Year
Wettest day (Rx1day)
1914
33.5 mm (1.3 in)
1915
41.7 mm (1.6 in)
1916
41.9 mm (1.6 in)
1917
33.0 mm (1.3 in)
1918
33.0 mm (1.3 in)
1919
29.2 mm (1.1 in)
1920
35.8 mm (1.4 in)
1921
56.4 mm (2.2 in)
1922
25.7 mm (1.0 in)
1923
39.9 mm (1.6 in)
1924
24.6 mm (1.0 in)
1925
18.8 mm (0.7 in)
1926
8.9 mm (0.35 in)
1928
62.5 mm (2.5 in)
1929
33.8 mm (1.3 in)
1930
51.8 mm (2.0 in)
1931
34.0 mm (1.3 in)
1932
37.6 mm (1.5 in)
1933
47.2 mm (1.9 in)
1934
44.7 mm (1.8 in)
1935
34.5 mm (1.4 in)
1936
44.5 mm (1.8 in)
1937
70.1 mm (2.8 in)
1938
33.3 mm (1.3 in)
1939
47.2 mm (1.9 in)
1940
28.4 mm (1.1 in)
1941
42.7 mm (1.7 in)
1942
55.9 mm (2.2 in)
1943
82.8 mm (3.3 in)
1944
49.5 mm (1.9 in)
1945
39.9 mm (1.6 in)
1946
23.1 mm (0.9 in)
1947
45.2 mm (1.8 in)
1948
34.5 mm (1.4 in)
1949
46.2 mm (1.8 in)
1950
29.2 mm (1.1 in)
1951
36.8 mm (1.4 in)
1952
31.8 mm (1.3 in)
1953
52.3 mm (2.1 in)
1954
57.7 mm (2.3 in)
1955
28.2 mm (1.1 in)
1956
81.8 mm (3.2 in)
1957
54.9 mm (2.2 in)
1958
46.5 mm (1.8 in)
1959
60.5 mm (2.4 in)
1960
40.9 mm (1.6 in)
1961
62.2 mm (2.4 in)
1962
35.1 mm (1.4 in)
1963
27.7 mm (1.1 in)
1965
31.8 mm (1.3 in)
1966
45.5 mm (1.8 in)
1967
33.0 mm (1.3 in)
1968
20.3 mm (0.8 in)
1969
56.4 mm (2.2 in)
1970
41.9 mm (1.6 in)
1971
38.1 mm (1.5 in)
1972
44.2 mm (1.7 in)
1978
36.4 mm (1.4 in)
1979
40.0 mm (1.6 in)
1980
28.0 mm (1.1 in)
1981
25.0 mm (1.0 in)
1982
36.0 mm (1.4 in)
1983
30.0 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Biscotasing, 1914 to 1983. The record is 136.7 mm (5.4 in) in 1937, marked on the chart; the median year is 61.5 mm (2.4 in).
Wettest five days (Rx5day) at Biscotasing by year
Year
Wettest five days (Rx5day)
1914
56.2 mm (2.2 in)
1915
66.3 mm (2.6 in)
1916
78.5 mm (3.1 in)
1917
63.7 mm (2.5 in)
1918
59.8 mm (2.4 in)
1919
52.8 mm (2.1 in)
1920
37.6 mm (1.5 in)
1921
76.5 mm (3.0 in)
1922
64.5 mm (2.5 in)
1923
57.5 mm (2.3 in)
1924
57.4 mm (2.3 in)
1925
33.5 mm (1.3 in)
1926
10.2 mm (0.4 in)
1928
75.3 mm (3.0 in)
1929
64.1 mm (2.5 in)
1930
86.1 mm (3.4 in)
1931
56.8 mm (2.2 in)
1932
60.4 mm (2.4 in)
1933
58.1 mm (2.3 in)
1934
58.6 mm (2.3 in)
1935
45.7 mm (1.8 in)
1936
49.4 mm (1.9 in)
1937
136.7 mm (5.4 in)
1938
53.9 mm (2.1 in)
1939
50.5 mm (2.0 in)
1940
46.7 mm (1.8 in)
1941
67.6 mm (2.7 in)
1942
72.4 mm (2.9 in)
1943
119.6 mm (4.7 in)
1944
61.5 mm (2.4 in)
1945
67.8 mm (2.7 in)
1946
44.2 mm (1.7 in)
1947
80.3 mm (3.2 in)
1948
53.8 mm (2.1 in)
1949
47.5 mm (1.9 in)
1950
50.8 mm (2.0 in)
1951
82.3 mm (3.2 in)
1952
43.4 mm (1.7 in)
1953
70.6 mm (2.8 in)
1954
101.8 mm (4.0 in)
1955
46.8 mm (1.8 in)
1956
97.8 mm (3.9 in)
1957
116.6 mm (4.6 in)
1958
62.8 mm (2.5 in)
1959
91.2 mm (3.6 in)
1960
105.2 mm (4.1 in)
1961
127.2 mm (5.0 in)
1962
62.0 mm (2.4 in)
1963
64.3 mm (2.5 in)
1965
57.1 mm (2.2 in)
1966
126.0 mm (5.0 in)
1967
65.3 mm (2.6 in)
1968
39.4 mm (1.6 in)
1969
61.2 mm (2.4 in)
1970
78.0 mm (3.1 in)
1971
46.7 mm (1.8 in)
1972
74.9 mm (2.9 in)
1978
62.6 mm (2.5 in)
1979
69.4 mm (2.7 in)
1980
55.8 mm (2.2 in)
1981
47.8 mm (1.9 in)
1982
55.6 mm (2.2 in)
1983
60.8 mm (2.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Biscotasing, 1914 to 1983. The record is 64 days in 1983, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Biscotasing by year
Year
Longest dry spell (CDD)
1914
17 days
1915
25 days
1916
14 days
1917
15 days
1918
19 days
1919
18 days
1920
22 days
1921
15 days
1922
16 days
1923
21 days
1924
23 days
1925
16 days
1926
21 days
1928
28 days
1929
21 days
1930
18 days
1931
10 days
1932
21 days
1933
16 days
1934
11 days
1935
16 days
1936
15 days
1937
19 days
1938
22 days
1939
19 days
1940
17 days
1941
26 days
1942
16 days
1943
14 days
1944
18 days
1945
16 days
1946
15 days
1947
17 days
1948
15 days
1949
22 days
1950
12 days
1951
11 days
1952
12 days
1953
19 days
1954
19 days
1955
16 days
1956
15 days
1957
19 days
1958
33 days
1959
16 days
1960
15 days
1961
36 days
1962
15 days
1963
16 days
1965
19 days
1966
12 days
1967
17 days
1968
18 days
1969
17 days
1970
15 days
1971
12 days
1972
14 days
1978
14 days
1979
12 days
1980
15 days
1981
17 days
1982
12 days
1983
64 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
43 years with a frost
Across 43 years with a frost, the median last spring frost at Biscotasing falls on 10 June and the median first autumn frost on 3 September, which leaves a median of 90 days between them.
Fitted over all years, the growing season changes by +8.7 days per decade at this station.
Frost dates and growing season at Biscotasing
Measure
Median, all years
Earliest period
Recent period (1930 to 1971)
Recent against earliest
Fitted trend
Last spring frost
10 June
n/a
8 June
n/a
-3.3 days per decade
First autumn frost
3 September
n/a
9 September
n/a
+5.4 days per decade
Growing days
90 days
n/a
97 days
n/a
+8.7 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.
Rainfall Return Levels
57 years, 1914 to 1983
A day with at least 39.9 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 87.7 mm (3.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Biscotasing: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
39.9 mm (1.6 in)
5 years
51.7 mm (2.0 in)
10 years
59.9 mm (2.4 in)
25 years
70.7 mm (2.8 in)
50 years
79.1 mm (3.1 in)
100 years
87.7 mm (3.5 in)
Longer than the 57 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, 57 years of values from 1914 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: 82.8 mm (3.3 in) in 1943; 81.8 mm (3.2 in) in 1956; 70.1 mm (2.8 in) in 1937.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Biscotasing standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Biscotasing 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.