Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Lennoxville. 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 Lennoxville, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.7 C (62.1 F)
-44.4 C (-47.9 F)
n/a
n/a
Feb
17.5 C (63.5 F)
-43.9 C (-47.0 F)
n/a
n/a
Mar
25.0 C (77.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Apr
30.6 C (87.1 F)
-20.6 C (-5.1 F)
n/a
n/a
May
32.2 C (90.0 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
0.6 C (33.1 F)
n/a
n/a
Aug
36.1 C (97.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
33.9 C (93.0 F)
-8.9 C (16.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-26.7 C (-16.1 F)
n/a
n/a
Dec
18.9 C (66.0 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 Lennoxville still stand. 1921 holds the most, with 38.
Standing records at Lennoxville by the year they were set
Year set
Standing records
1888
6
1889
19
1890
16
1892
12
1893
6
1915
15
1916
20
1917
22
1918
28
1919
22
1920
20
1921
38
1922
17
1923
36
1924
8
1925
20
1926
24
1927
13
1928
11
1929
14
1930
15
1931
21
1932
19
1933
31
1934
36
1935
24
1936
34
1937
22
1938
20
1939
17
1940
20
1941
22
1942
19
1943
21
1944
17
1945
26
1946
34
1947
31
1948
28
1949
25
1950
22
1951
14
1952
13
1953
26
1954
13
1955
18
1956
18
1957
19
1958
11
1959
23
1960
9
1961
16
1962
14
1963
16
1964
21
1965
17
1966
20
1967
13
1968
24
1969
14
1970
21
1971
19
1972
10
1973
25
1974
20
1975
20
1976
24
1977
21
1978
12
1979
30
1980
12
1981
28
1982
18
1983
14
All-Time Record Progression
5 new records
5 all-time records were set at Lennoxville between 14 June 1942 and 25 November 1971. Each dot is a new record.
When Lennoxville set new all-time records
Date
Kind
Detail
1942-06-14
Record daily precipitation
Record daily precipitation 98.8 mm (3.9 in)
1943-06-15
Record daily precipitation
Record daily precipitation 103.6 mm (4.1 in)
1949-08-09
Record high minimum temperature
Record high minimum temperature 24.4 C (75.9 F)
1953-01-03
Record daily snowfall
Record daily snowfall 48.5 cm (19.1 in)
1971-11-25
Record daily snowfall
Record daily snowfall 64.3 cm (25.3 in)
Wettest Day of Each Month
Jun: 103.6 mm (4.1 in)
The wettest day on record for each calendar month at Lennoxville. The most was 103.6 mm (4.1 in) on 15 June 1943.
Record daily precipitation for each month at Lennoxville
Month
Record daily precipitation (mm)
Date
Jan
48.5 mm (1.9 in)
3 January 1953
Feb
41.1 mm (1.6 in)
25 February 1966
Mar
67.3 mm (2.6 in)
30 March 1924
Apr
36.3 mm (1.4 in)
20 April 1950
May
51.8 mm (2.0 in)
6 May 1945
Jun
103.6 mm (4.1 in)
15 June 1943
Jul
67.8 mm (2.7 in)
16 July 1916
Aug
58.9 mm (2.3 in)
26 August 1975
Sep
61.0 mm (2.4 in)
9 September 1924
Oct
84.3 mm (3.3 in)
20 October 1937
Nov
61.0 mm (2.4 in)
4 November 1927
Dec
50.5 mm (2.0 in)
26 December 1969
Period of Record Coverage
1888 to 1983
Complete yearUnder 90 percent of days
75 years of record at Lennoxville, 1888 to 1983. 5 years have data for under 90 percent of days and are left out of rankings: 1888, 1890, 1891, 1892, 1893.
Cooler than the station meanWarmer than the station mean
One stripe for each of 67 complete years at Lennoxville, 1915 to 1983. Blue stripes are years cooler than the station's own mean of 5.0 C (41.0 F); red stripes are warmer. The coolest year was 1917, at 2.6 C (36.7 F), and the warmest was 1953, at 7.0 C (44.6 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Lennoxville as warming stripes, 1915 to 1983
Year
Annual mean temperature
Difference from the station mean
1915
5.2 C
+0.16 C
1916
4.3 C
-0.69 C
1917
2.6 C
-2.38 C
1918
3.7 C
-1.26 C
1919
4.6 C
-0.37 C
1921
5.7 C
+0.72 C
1922
4.6 C
-0.41 C
1923
3.4 C
-1.58 C
1924
4.4 C
-0.56 C
1925
4.8 C
-0.24 C
1926
3.4 C
-1.61 C
1927
5.4 C
+0.39 C
1928
5.1 C
+0.08 C
1929
4.8 C
-0.20 C
1930
5.5 C
+0.51 C
1931
6.3 C
+1.31 C
1932
5.6 C
+0.56 C
1933
4.8 C
-0.18 C
1934
4.3 C
-0.68 C
1935
4.4 C
-0.62 C
1936
4.4 C
-0.61 C
1937
5.8 C
+0.76 C
1938
5.5 C
+0.50 C
1939
4.4 C
-0.64 C
1940
4.1 C
-0.86 C
1941
5.0 C
0.00 C
1942
5.4 C
+0.36 C
1943
4.0 C
-1.04 C
1944
4.8 C
-0.15 C
1945
5.6 C
+0.57 C
1946
5.6 C
+0.60 C
1947
5.3 C
+0.32 C
1948
5.1 C
+0.12 C
1949
6.4 C
+1.39 C
1950
5.2 C
+0.24 C
1951
5.5 C
+0.46 C
1952
6.0 C
+1.01 C
1953
7.0 C
+2.03 C
1954
5.1 C
+0.06 C
1955
5.3 C
+0.29 C
1956
4.5 C
-0.45 C
1957
5.5 C
+0.51 C
1958
4.5 C
-0.53 C
1959
5.5 C
+0.51 C
1960
5.5 C
+0.47 C
1961
5.3 C
+0.33 C
1962
4.4 C
-0.64 C
1963
4.4 C
-0.62 C
1964
5.4 C
+0.44 C
1965
4.7 C
-0.28 C
1966
5.3 C
+0.26 C
1967
4.8 C
-0.19 C
1968
4.7 C
-0.30 C
1969
5.4 C
+0.42 C
1970
4.8 C
-0.18 C
1971
4.8 C
-0.15 C
1972
4.5 C
-0.48 C
1974
5.1 C
+0.09 C
1975
5.8 C
+0.78 C
1976
4.7 C
-0.33 C
1977
5.5 C
+0.48 C
1978
4.3 C
-0.70 C
1979
5.9 C
+0.93 C
1980
4.6 C
-0.44 C
1981
5.9 C
+0.89 C
1982
5.0 C
-0.01 C
1983
6.0 C
+1.00 C
The annual mean temperature here has risen by 0.11 C (0.02 to 0.20) per decade over 1915 to 1983. In Fahrenheit: 0.20 F (0.04 to 0.36) per decade. The slope is a straight line fitted to 67 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Lennoxville
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.11 C (0.02 to 0.20) per decade
0.20 F (0.04 to 0.36) per decade
1915 to 1983
67
Rise
Mean daily maximum
0.00 C (-0.10 to 0.10) per decade
0.00 F (-0.18 to 0.17) per decade
1915 to 1983
67
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1915 to 1983
67
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
1888 to 1983
Yearly extremes at Lennoxville: 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)
1921
32.2 C (90.0 F)
75
Coldest night (TNn)
-44.4 C (-47.9 F)
1925
-36.7 C (-34.1 F)
75
Wettest day (Rx1day)
103.6 mm (4.1 in)
1943
45.5 mm (1.8 in)
75
Wettest five days (Rx5day)
127.3 mm (5.0 in)
1942
71.3 mm (2.8 in)
75
Longest dry spell (CDD)
35 days
1961
13 days
75
Hottest day (TXx)
The hottest day of the year at Lennoxville, 1888 to 1983. The record is 37.2 C (99.0 F) in 1921, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Lennoxville by year
Year
Hottest day (TXx)
1888
10.0 C (50.0 F)
1889
32.2 C (90.0 F)
1890
26.1 C (79.0 F)
1891
4.4 C (39.9 F)
1892
35.0 C (95.0 F)
1893
32.2 C (90.0 F)
1915
31.7 C (89.1 F)
1916
32.8 C (91.0 F)
1917
33.3 C (91.9 F)
1918
32.2 C (90.0 F)
1919
33.9 C (93.0 F)
1920
31.1 C (88.0 F)
1921
37.2 C (99.0 F)
1922
31.1 C (88.0 F)
1923
31.7 C (89.1 F)
1924
31.1 C (88.0 F)
1925
30.6 C (87.1 F)
1926
30.6 C (87.1 F)
1927
31.1 C (88.0 F)
1928
31.7 C (89.1 F)
1929
32.2 C (90.0 F)
1930
31.7 C (89.1 F)
1931
35.6 C (96.1 F)
1932
31.7 C (89.1 F)
1933
33.9 C (93.0 F)
1934
31.7 C (89.1 F)
1935
36.1 C (97.0 F)
1936
31.7 C (89.1 F)
1937
34.4 C (93.9 F)
1938
32.8 C (91.0 F)
1939
32.2 C (90.0 F)
1940
31.7 C (89.1 F)
1941
33.3 C (91.9 F)
1942
32.2 C (90.0 F)
1943
32.2 C (90.0 F)
1944
35.0 C (95.0 F)
1945
32.2 C (90.0 F)
1946
33.3 C (91.9 F)
1947
34.4 C (93.9 F)
1948
35.0 C (95.0 F)
1949
33.3 C (91.9 F)
1950
30.6 C (87.1 F)
1951
30.6 C (87.1 F)
1952
36.1 C (97.0 F)
1953
35.6 C (96.1 F)
1954
32.2 C (90.0 F)
1955
34.4 C (93.9 F)
1956
32.8 C (91.0 F)
1957
32.8 C (91.0 F)
1958
31.1 C (88.0 F)
1959
35.0 C (95.0 F)
1960
32.2 C (90.0 F)
1961
31.1 C (88.0 F)
1962
31.7 C (89.1 F)
1963
33.9 C (93.0 F)
1964
32.8 C (91.0 F)
1965
32.2 C (90.0 F)
1966
32.2 C (90.0 F)
1967
30.6 C (87.1 F)
1968
32.8 C (91.0 F)
1969
32.2 C (90.0 F)
1970
33.3 C (91.9 F)
1971
32.2 C (90.0 F)
1972
32.2 C (90.0 F)
1973
32.8 C (91.0 F)
1974
30.6 C (87.1 F)
1975
35.6 C (96.1 F)
1976
31.1 C (88.0 F)
1977
32.8 C (91.0 F)
1978
32.2 C (90.0 F)
1979
32.8 C (91.0 F)
1980
31.0 C (87.8 F)
1981
32.0 C (89.6 F)
1982
32.0 C (89.6 F)
1983
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Lennoxville, 1888 to 1983. The record is -44.4 C (-47.9 F) in 1925, marked on the chart; the median year is -36.7 C (-34.1 F).
Coldest night (TNn) at Lennoxville by year
Year
Coldest night (TNn)
1888
-23.3 C (-9.9 F)
1889
-41.1 C (-42.0 F)
1890
-33.3 C (-27.9 F)
1891
-18.3 C (-0.9 F)
1892
-36.1 C (-33.0 F)
1893
-36.1 C (-33.0 F)
1915
-43.3 C (-45.9 F)
1916
-37.2 C (-35.0 F)
1917
-42.8 C (-45.0 F)
1918
-42.8 C (-45.0 F)
1919
-32.8 C (-27.0 F)
1920
-43.9 C (-47.0 F)
1921
-33.9 C (-29.0 F)
1922
-38.3 C (-36.9 F)
1923
-41.7 C (-43.1 F)
1924
-35.0 C (-31.0 F)
1925
-44.4 C (-47.9 F)
1926
-33.9 C (-29.0 F)
1927
-36.1 C (-33.0 F)
1928
-34.4 C (-29.9 F)
1929
-33.9 C (-29.0 F)
1930
-35.6 C (-32.1 F)
1931
-35.6 C (-32.1 F)
1932
-31.7 C (-25.1 F)
1933
-44.4 C (-47.9 F)
1934
-41.7 C (-43.1 F)
1935
-37.2 C (-35.0 F)
1936
-36.1 C (-33.0 F)
1937
-31.7 C (-25.1 F)
1938
-40.0 C (-40.0 F)
1939
-34.4 C (-29.9 F)
1940
-34.4 C (-29.9 F)
1941
-32.2 C (-26.0 F)
1942
-37.2 C (-35.0 F)
1943
-41.1 C (-42.0 F)
1944
-36.7 C (-34.1 F)
1945
-35.6 C (-32.1 F)
1946
-35.6 C (-32.1 F)
1947
-34.4 C (-29.9 F)
1948
-40.0 C (-40.0 F)
1949
-33.3 C (-27.9 F)
1950
-32.8 C (-27.0 F)
1951
-40.6 C (-41.1 F)
1952
-33.3 C (-27.9 F)
1953
-32.8 C (-27.0 F)
1954
-37.8 C (-36.0 F)
1955
-37.2 C (-35.0 F)
1956
-37.2 C (-35.0 F)
1957
-41.7 C (-43.1 F)
1958
-36.7 C (-34.1 F)
1959
-36.7 C (-34.1 F)
1960
-36.7 C (-34.1 F)
1961
-34.4 C (-29.9 F)
1962
-36.1 C (-33.0 F)
1963
-38.9 C (-38.0 F)
1964
-32.8 C (-27.0 F)
1965
-31.1 C (-24.0 F)
1966
-37.2 C (-35.0 F)
1967
-37.2 C (-35.0 F)
1968
-37.8 C (-36.0 F)
1969
-31.7 C (-25.1 F)
1970
-37.2 C (-35.0 F)
1971
-40.0 C (-40.0 F)
1972
-37.2 C (-35.0 F)
1973
-36.7 C (-34.1 F)
1974
-36.7 C (-34.1 F)
1975
-32.8 C (-27.0 F)
1976
-37.2 C (-35.0 F)
1977
-32.2 C (-26.0 F)
1978
-37.2 C (-35.0 F)
1979
-37.2 C (-35.0 F)
1980
-35.5 C (-31.9 F)
1981
-36.0 C (-32.8 F)
1982
-37.0 C (-34.6 F)
1983
-33.5 C (-28.3 F)
Wettest day (Rx1day)
The wettest day of the year at Lennoxville, 1888 to 1983. The record is 103.6 mm (4.1 in) in 1943, marked on the chart; the median year is 45.5 mm (1.8 in).
Wettest day (Rx1day) at Lennoxville by year
Year
Wettest day (Rx1day)
1888
27.7 mm (1.1 in)
1889
50.3 mm (2.0 in)
1890
44.5 mm (1.8 in)
1891
16.5 mm (0.6 in)
1892
53.1 mm (2.1 in)
1893
37.8 mm (1.5 in)
1915
27.9 mm (1.1 in)
1916
67.8 mm (2.7 in)
1917
53.3 mm (2.1 in)
1918
41.9 mm (1.6 in)
1919
45.5 mm (1.8 in)
1920
45.2 mm (1.8 in)
1921
25.4 mm (1.0 in)
1922
76.2 mm (3.0 in)
1923
57.2 mm (2.3 in)
1924
67.3 mm (2.6 in)
1925
57.2 mm (2.3 in)
1926
48.3 mm (1.9 in)
1927
61.0 mm (2.4 in)
1928
47.5 mm (1.9 in)
1929
40.6 mm (1.6 in)
1930
38.1 mm (1.5 in)
1931
44.5 mm (1.8 in)
1932
48.8 mm (1.9 in)
1933
49.0 mm (1.9 in)
1934
34.0 mm (1.3 in)
1935
34.5 mm (1.4 in)
1936
44.7 mm (1.8 in)
1937
84.3 mm (3.3 in)
1938
56.4 mm (2.2 in)
1939
52.1 mm (2.1 in)
1940
54.6 mm (2.1 in)
1941
36.1 mm (1.4 in)
1942
98.8 mm (3.9 in)
1943
103.6 mm (4.1 in)
1944
40.6 mm (1.6 in)
1945
60.7 mm (2.4 in)
1946
39.9 mm (1.6 in)
1947
46.7 mm (1.8 in)
1948
38.1 mm (1.5 in)
1949
41.1 mm (1.6 in)
1950
45.7 mm (1.8 in)
1951
33.0 mm (1.3 in)
1952
61.7 mm (2.4 in)
1953
51.1 mm (2.0 in)
1954
46.2 mm (1.8 in)
1955
33.0 mm (1.3 in)
1956
51.6 mm (2.0 in)
1957
44.5 mm (1.8 in)
1958
41.1 mm (1.6 in)
1959
40.6 mm (1.6 in)
1960
57.9 mm (2.3 in)
1961
37.3 mm (1.5 in)
1962
65.8 mm (2.6 in)
1963
55.9 mm (2.2 in)
1964
25.4 mm (1.0 in)
1965
33.8 mm (1.3 in)
1966
50.8 mm (2.0 in)
1967
40.4 mm (1.6 in)
1968
36.6 mm (1.4 in)
1969
50.5 mm (2.0 in)
1970
30.7 mm (1.2 in)
1971
50.0 mm (2.0 in)
1972
34.0 mm (1.3 in)
1973
35.1 mm (1.4 in)
1974
42.4 mm (1.7 in)
1975
58.9 mm (2.3 in)
1976
56.6 mm (2.2 in)
1977
39.6 mm (1.6 in)
1978
46.2 mm (1.8 in)
1979
45.7 mm (1.8 in)
1980
34.2 mm (1.3 in)
1981
38.2 mm (1.5 in)
1982
50.9 mm (2.0 in)
1983
39.0 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Lennoxville, 1888 to 1983. The record is 127.3 mm (5.0 in) in 1942, marked on the chart; the median year is 71.3 mm (2.8 in).
Wettest five days (Rx5day) at Lennoxville by year
Year
Wettest five days (Rx5day)
1888
34.4 mm (1.4 in)
1889
101.3 mm (4.0 in)
1890
57.4 mm (2.3 in)
1891
18.5 mm (0.7 in)
1892
84.9 mm (3.3 in)
1893
46.9 mm (1.8 in)
1915
52.0 mm (2.0 in)
1916
92.7 mm (3.6 in)
1917
90.4 mm (3.6 in)
1918
78.7 mm (3.1 in)
1919
79.3 mm (3.1 in)
1920
89.4 mm (3.5 in)
1921
65.8 mm (2.6 in)
1922
124.4 mm (4.9 in)
1923
62.6 mm (2.5 in)
1924
120.2 mm (4.7 in)
1925
107.7 mm (4.2 in)
1926
63.5 mm (2.5 in)
1927
119.2 mm (4.7 in)
1928
78.2 mm (3.1 in)
1929
52.1 mm (2.1 in)
1930
71.3 mm (2.8 in)
1931
71.1 mm (2.8 in)
1932
90.5 mm (3.6 in)
1933
68.6 mm (2.7 in)
1934
43.4 mm (1.7 in)
1935
51.9 mm (2.0 in)
1936
64.5 mm (2.5 in)
1937
89.9 mm (3.5 in)
1938
94.2 mm (3.7 in)
1939
90.2 mm (3.6 in)
1940
61.2 mm (2.4 in)
1941
51.0 mm (2.0 in)
1942
127.3 mm (5.0 in)
1943
124.9 mm (4.9 in)
1944
72.2 mm (2.8 in)
1945
95.0 mm (3.7 in)
1946
60.5 mm (2.4 in)
1947
72.7 mm (2.9 in)
1948
70.7 mm (2.8 in)
1949
69.8 mm (2.7 in)
1950
87.3 mm (3.4 in)
1951
45.7 mm (1.8 in)
1952
79.9 mm (3.1 in)
1953
72.7 mm (2.9 in)
1954
79.7 mm (3.1 in)
1955
48.7 mm (1.9 in)
1956
60.7 mm (2.4 in)
1957
85.1 mm (3.4 in)
1958
55.4 mm (2.2 in)
1959
96.5 mm (3.8 in)
1960
80.5 mm (3.2 in)
1961
60.2 mm (2.4 in)
1962
89.2 mm (3.5 in)
1963
67.8 mm (2.7 in)
1964
41.1 mm (1.6 in)
1965
60.5 mm (2.4 in)
1966
76.4 mm (3.0 in)
1967
52.8 mm (2.1 in)
1968
57.7 mm (2.3 in)
1969
76.5 mm (3.0 in)
1970
67.0 mm (2.6 in)
1971
82.0 mm (3.2 in)
1972
65.5 mm (2.6 in)
1973
58.2 mm (2.3 in)
1974
92.2 mm (3.6 in)
1975
80.0 mm (3.1 in)
1976
102.9 mm (4.1 in)
1977
67.6 mm (2.7 in)
1978
71.3 mm (2.8 in)
1979
66.8 mm (2.6 in)
1980
64.5 mm (2.5 in)
1981
65.7 mm (2.6 in)
1982
74.2 mm (2.9 in)
1983
84.7 mm (3.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Lennoxville, 1888 to 1983. The record is 35 days in 1961, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Lennoxville by year
Year
Longest dry spell (CDD)
1888
10 days
1889
18 days
1890
11 days
1891
2 days
1892
17 days
1893
10 days
1915
12 days
1916
11 days
1917
15 days
1918
18 days
1919
11 days
1920
13 days
1921
16 days
1922
20 days
1923
10 days
1924
15 days
1925
12 days
1926
10 days
1927
11 days
1928
16 days
1929
14 days
1930
15 days
1931
20 days
1932
20 days
1933
13 days
1934
14 days
1935
14 days
1936
11 days
1937
11 days
1938
11 days
1939
18 days
1940
11 days
1941
19 days
1942
12 days
1943
14 days
1944
16 days
1945
14 days
1946
11 days
1947
14 days
1948
17 days
1949
11 days
1950
10 days
1951
14 days
1952
13 days
1953
14 days
1954
12 days
1955
10 days
1956
14 days
1957
15 days
1958
9 days
1959
12 days
1960
11 days
1961
35 days
1962
17 days
1963
17 days
1964
14 days
1965
12 days
1966
13 days
1967
11 days
1968
11 days
1969
10 days
1970
12 days
1971
12 days
1972
13 days
1973
13 days
1974
9 days
1975
12 days
1976
17 days
1977
15 days
1978
17 days
1979
12 days
1980
19 days
1981
11 days
1982
13 days
1983
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
67 years with a frost
Across 67 years with a frost, the median last spring frost at Lennoxville falls on 30 May and the median first autumn frost on 12 September, which leaves a median of 108 days between them.
In 1953 to 1983 the median growing season was 113 days. That is 10 days more than in 1915 to 1945.
Fitted over all years, the growing season changes by +4.2 days per decade at this station.
Frost dates and growing season at Lennoxville
Measure
Median, all years
Earliest period (1915 to 1945)
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
30 May
31 May
28 May
3 days earlier
-1.1 days per decade
First autumn frost
12 September
9 September
16 September
7 days later
+3.1 days per decade
Growing days
108 days
103 days
113 days
10 days more
+4.2 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
70 years, 1889 to 1983
A day with at least 45.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 97.7 mm (3.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Lennoxville: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
45.3 mm (1.8 in)
5 years
57.5 mm (2.3 in)
10 years
66.2 mm (2.6 in)
25 years
78.1 mm (3.1 in)
50 years
87.6 mm (3.4 in)
100 years
97.7 mm (3.8 in)
Longer than the 70 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, 70 years of values from 1889 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: 103.6 mm (4.1 in) in 1943; 98.8 mm (3.9 in) in 1942; 84.3 mm (3.3 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 Lennoxville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lennoxville 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.