Record envelope, standing records and threshold days for New London (USC00215842), Minnesota, United States, with 117 years of record.
Key Facts for New London
New London (USC00215842) is a weather station in Minnesota, United States at 45.30 latitude and -94.94 longitude, 381 m (1,250 ft) above sea level.
The station reports from 1893 to 2009, 117 years of record.
1,464 records set at New London still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
New London set a daily record low maximum temperature of 17.8 C (64.0 F) on 18 July 2009.
About the Station
Location: Minnesota, United States, 45.30 latitude, -94.94 longitude.
Elevation: 381 m (1,250 ft).
Period of record: 1893 to 2009, 117 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at New London. 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 New London, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.6 C (60.1 F)
-41.1 C (-42.0 F)
n/a
n/a
Feb
14.4 C (57.9 F)
-40.0 C (-40.0 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-36.7 C (-34.1 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-18.9 C (-2.0 F)
n/a
n/a
May
41.7 C (107.1 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
42.2 C (108.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
43.3 C (109.9 F)
5.0 C (41.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
1.7 C (35.1 F)
n/a
n/a
Sep
41.1 C (106.0 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-14.4 C (6.1 F)
n/a
n/a
Nov
25.6 C (78.1 F)
-30.6 C (-23.1 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-37.2 C (-35.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at New London still stand. 1897 holds the most, with 40.
Standing records at New London by the year they were set
Year set
Standing records
1893
20
1894
10
1895
16
1896
15
1897
40
1898
7
1899
26
1900
19
1901
17
1902
22
1903
12
1904
6
1905
10
1906
10
1907
25
1908
16
1909
23
1910
21
1911
33
1912
20
1913
17
1914
9
1915
17
1916
17
1917
17
1918
14
1919
10
1920
6
1921
21
1922
8
1923
14
1924
17
1925
16
1926
5
1927
17
1928
15
1929
10
1930
15
1931
30
1932
12
1933
14
1934
25
1935
16
1936
34
1937
6
1938
3
1939
21
1940
18
1941
15
1942
13
1943
2
1944
19
1945
6
1946
7
1947
19
1948
17
1949
13
1950
11
1951
12
1952
5
1953
11
1954
7
1955
8
1956
16
1957
1
1958
6
1959
13
1960
4
1961
6
1962
16
1963
12
1964
11
1965
14
1966
6
1967
9
1968
12
1969
13
1970
5
1975
3
1976
10
1977
17
1978
7
1979
10
1980
5
1981
10
1982
5
1983
20
1984
6
1985
4
1986
9
1987
13
1988
18
1989
16
1990
18
1991
24
1992
8
1993
3
1994
8
1995
12
1996
12
1997
10
1998
13
1999
9
2000
13
2001
15
2002
9
2003
11
2004
12
2005
8
2006
9
2007
8
2008
2
2009
6
All-Time Record Progression
3 new records
3 all-time records were set at New London between 31 July 1955 and 27 November 2001. Each dot is a new record.
When New London set new all-time records
Date
Kind
Detail
1955-07-31
Record high minimum temperature
Record high minimum temperature 28.3 C (82.9 F)
1957-06-17
Record daily precipitation
Record daily precipitation 154.9 mm (6.1 in)
2001-11-27
Record daily snowfall
Record daily snowfall 61.0 cm (24.0 in)
Wettest Day of Each Month
Jun: 154.9 mm (6.1 in)
The wettest day on record for each calendar month at New London. The most was 154.9 mm (6.1 in) on 17 June 1957.
Record daily precipitation for each month at New London
Month
Record daily precipitation (mm)
Date
Jan
45.2 mm (1.8 in)
4 January 1943
Feb
27.9 mm (1.1 in)
28 February 1951
Mar
76.2 mm (3.0 in)
31 March 1896
Apr
84.6 mm (3.3 in)
30 April 1936
May
109.7 mm (4.3 in)
21 May 1987
Jun
154.9 mm (6.1 in)
17 June 1957
Jul
132.1 mm (5.2 in)
31 July 1993
Aug
127.8 mm (5.0 in)
26 August 2005
Sep
135.4 mm (5.3 in)
8 September 1991
Oct
75.7 mm (3.0 in)
4 October 2005
Nov
52.3 mm (2.1 in)
9 November 1977
Dec
25.7 mm (1.0 in)
25 December 1982
Period of Record Coverage
1893 to 2009
Complete yearUnder 90 percent of days
113 years of record at New London, 1893 to 2009. 8 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1896, 1898, 1900, 1970, 1975, 2009.
Cooler than the station meanWarmer than the station mean
One stripe for each of 101 complete years at New London, 1897 to 2008. Blue stripes are years cooler than the station's own mean of 6.4 C (43.5 F); red stripes are warmer. The coolest year was 1917, at 3.8 C (38.9 F), and the warmest was 1987, at 9.3 C (48.8 F). The strongest colour marks a difference of 3.0 C (5.4 F).
Annual mean temperature at New London as warming stripes, 1897 to 2008
Year
Annual mean temperature
Difference from the station mean
1897
4.1 C
-2.25 C
1899
4.9 C
-1.47 C
1901
6.2 C
-0.17 C
1902
5.8 C
-0.54 C
1903
4.9 C
-1.45 C
1904
4.7 C
-1.65 C
1905
5.5 C
-0.91 C
1906
5.6 C
-0.75 C
1907
4.5 C
-1.91 C
1908
6.5 C
+0.15 C
1909
4.9 C
-1.47 C
1910
5.7 C
-0.71 C
1911
5.9 C
-0.52 C
1913
6.7 C
+0.35 C
1914
6.0 C
-0.42 C
1915
5.2 C
-1.15 C
1916
3.9 C
-2.46 C
1917
3.8 C
-2.55 C
1918
6.5 C
+0.16 C
1919
5.8 C
-0.61 C
1920
5.9 C
-0.46 C
1921
7.5 C
+1.10 C
1922
6.5 C
+0.15 C
1923
6.3 C
-0.11 C
1924
4.8 C
-1.54 C
1925
5.9 C
-0.46 C
1926
5.4 C
-0.94 C
1927
5.6 C
-0.81 C
1928
6.7 C
+0.37 C
1929
5.0 C
-1.41 C
1930
7.1 C
+0.71 C
1931
9.1 C
+2.69 C
1932
5.9 C
-0.47 C
1933
6.5 C
+0.13 C
1934
6.7 C
+0.35 C
1935
5.9 C
-0.50 C
1937
4.9 C
-1.46 C
1938
6.6 C
+0.22 C
1939
7.7 C
+1.30 C
1940
6.3 C
-0.12 C
1941
7.4 C
+1.03 C
1942
6.6 C
+0.25 C
1943
5.6 C
-0.73 C
1944
7.8 C
+1.46 C
1945
5.9 C
-0.45 C
1946
7.0 C
+0.63 C
1947
6.6 C
+0.22 C
1948
7.0 C
+0.61 C
1949
7.4 C
+1.05 C
1950
5.0 C
-1.33 C
1951
4.9 C
-1.51 C
1952
7.1 C
+0.68 C
1953
7.6 C
+1.20 C
1954
7.2 C
+0.84 C
1955
6.8 C
+0.40 C
1956
6.5 C
+0.15 C
1957
6.8 C
+0.43 C
1958
7.1 C
+0.73 C
1959
7.1 C
+0.75 C
1960
5.9 C
-0.44 C
1961
6.5 C
+0.15 C
1962
6.0 C
-0.39 C
1963
6.9 C
+0.56 C
1964
6.9 C
+0.52 C
1966
5.4 C
-1.02 C
1967
5.5 C
-0.88 C
1968
6.5 C
+0.16 C
1969
5.6 C
-0.77 C
1976
7.0 C
+0.63 C
1977
7.1 C
+0.73 C
1978
5.9 C
-0.46 C
1979
5.3 C
-1.11 C
1980
7.1 C
+0.74 C
1981
7.8 C
+1.39 C
1982
5.9 C
-0.48 C
1983
7.1 C
+0.69 C
1984
7.0 C
+0.60 C
1985
5.9 C
-0.47 C
1986
7.2 C
+0.82 C
1987
9.3 C
+2.97 C
1988
7.5 C
+1.16 C
1989
5.3 C
-1.10 C
1990
7.8 C
+1.38 C
1991
7.1 C
+0.74 C
1992
6.8 C
+0.46 C
1993
5.5 C
-0.84 C
1994
6.5 C
+0.10 C
1995
6.1 C
-0.24 C
1996
4.6 C
-1.74 C
1997
6.1 C
-0.26 C
1998
8.5 C
+2.17 C
1999
8.2 C
+1.78 C
2000
7.0 C
+0.63 C
2001
7.5 C
+1.09 C
2002
7.2 C
+0.83 C
2003
6.9 C
+0.51 C
2004
7.2 C
+0.78 C
2005
7.9 C
+1.50 C
2006
8.5 C
+2.08 C
2007
7.6 C
+1.22 C
2008
5.2 C
-1.21 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1897 to 2008. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 101 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at New London
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.2) per decade
0.3 F (0.2 to 0.4) per decade
1897 to 2008
101
Rise
Mean daily maximum
0.1 C (0.1 to 0.2) per decade
0.2 F (0.1 to 0.4) per decade
1897 to 2008
101
Rise
Mean daily minimum
0.2 C (0.1 to 0.2) per decade
0.3 F (0.2 to 0.4) per decade
1897 to 2008
101
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
1893 to 2009
Yearly extremes at New London: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.3 C (109.9 F)
1901
36.1 C (97.0 F)
113
Coldest night (TNn)
-41.1 C (-42.0 F)
1912
-32.8 C (-27.0 F)
113
Wettest day (Rx1day)
154.9 mm (6.1 in)
1957
53.1 mm (2.1 in)
113
Wettest five days (Rx5day)
262.1 mm (10.3 in)
1991
86.4 mm (3.4 in)
113
Longest dry spell (CDD)
64 days
1952
31 days
113
Hottest day (TXx)
The hottest day of the year at New London, 1893 to 2009. The record is 43.3 C (109.9 F) in 1901, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at New London by year
Year
Hottest day (TXx)
1893
36.1 C (97.0 F)
1894
23.3 C (73.9 F)
1895
38.9 C (102.0 F)
1896
36.7 C (98.1 F)
1897
35.0 C (95.0 F)
1898
37.8 C (100.0 F)
1899
35.6 C (96.1 F)
1900
38.9 C (102.0 F)
1901
43.3 C (109.9 F)
1902
34.4 C (93.9 F)
1903
33.3 C (91.9 F)
1904
33.3 C (91.9 F)
1905
37.2 C (99.0 F)
1906
37.8 C (100.0 F)
1907
34.4 C (93.9 F)
1908
36.7 C (98.1 F)
1909
35.0 C (95.0 F)
1910
35.6 C (96.1 F)
1911
36.1 C (97.0 F)
1912
35.0 C (95.0 F)
1913
36.7 C (98.1 F)
1914
35.0 C (95.0 F)
1915
32.2 C (90.0 F)
1916
36.1 C (97.0 F)
1917
37.2 C (99.0 F)
1918
39.4 C (102.9 F)
1919
36.1 C (97.0 F)
1920
35.0 C (95.0 F)
1921
39.4 C (102.9 F)
1922
37.8 C (100.0 F)
1923
38.3 C (100.9 F)
1924
36.1 C (97.0 F)
1925
36.7 C (98.1 F)
1926
37.8 C (100.0 F)
1927
36.1 C (97.0 F)
1928
35.6 C (96.1 F)
1929
37.2 C (99.0 F)
1930
38.3 C (100.9 F)
1931
41.1 C (106.0 F)
1932
36.7 C (98.1 F)
1933
38.9 C (102.0 F)
1934
42.2 C (108.0 F)
1935
38.9 C (102.0 F)
1936
41.1 C (106.0 F)
1937
34.4 C (93.9 F)
1938
36.1 C (97.0 F)
1939
35.6 C (96.1 F)
1940
40.0 C (104.0 F)
1941
40.6 C (105.1 F)
1942
37.2 C (99.0 F)
1943
35.6 C (96.1 F)
1944
34.4 C (93.9 F)
1945
35.6 C (96.1 F)
1946
35.6 C (96.1 F)
1947
38.3 C (100.9 F)
1948
38.3 C (100.9 F)
1949
37.8 C (100.0 F)
1950
34.4 C (93.9 F)
1951
33.9 C (93.0 F)
1952
33.3 C (91.9 F)
1953
35.0 C (95.0 F)
1954
36.1 C (97.0 F)
1955
36.7 C (98.1 F)
1956
37.2 C (99.0 F)
1957
35.0 C (95.0 F)
1958
36.1 C (97.0 F)
1959
37.2 C (99.0 F)
1960
34.4 C (93.9 F)
1961
37.2 C (99.0 F)
1962
32.2 C (90.0 F)
1963
35.6 C (96.1 F)
1964
37.2 C (99.0 F)
1965
35.0 C (95.0 F)
1966
36.1 C (97.0 F)
1967
32.8 C (91.0 F)
1968
34.4 C (93.9 F)
1969
35.0 C (95.0 F)
1970
33.9 C (93.0 F)
1975
22.8 C (73.0 F)
1976
37.8 C (100.0 F)
1977
36.1 C (97.0 F)
1978
37.2 C (99.0 F)
1979
37.8 C (100.0 F)
1980
37.2 C (99.0 F)
1981
33.3 C (91.9 F)
1982
35.0 C (95.0 F)
1983
37.2 C (99.0 F)
1984
36.1 C (97.0 F)
1985
37.2 C (99.0 F)
1986
34.4 C (93.9 F)
1987
35.6 C (96.1 F)
1988
40.0 C (104.0 F)
1989
35.6 C (96.1 F)
1990
38.3 C (100.9 F)
1991
34.4 C (93.9 F)
1992
32.8 C (91.0 F)
1993
32.2 C (90.0 F)
1994
35.6 C (96.1 F)
1995
36.7 C (98.1 F)
1996
35.0 C (95.0 F)
1997
34.4 C (93.9 F)
1998
35.0 C (95.0 F)
1999
36.1 C (97.0 F)
2000
34.4 C (93.9 F)
2001
36.1 C (97.0 F)
2002
34.4 C (93.9 F)
2003
33.9 C (93.0 F)
2004
33.9 C (93.0 F)
2005
35.6 C (96.1 F)
2006
37.2 C (99.0 F)
2007
36.1 C (97.0 F)
2008
33.3 C (91.9 F)
2009
32.8 C (91.0 F)
Coldest night (TNn)
The coldest night of the year at New London, 1893 to 2009. The record is -41.1 C (-42.0 F) in 1912, marked on the chart; the median year is -32.8 C (-27.0 F).
Coldest night (TNn) at New London by year
Year
Coldest night (TNn)
1893
-28.9 C (-20.0 F)
1894
-34.4 C (-29.9 F)
1895
-35.6 C (-32.1 F)
1896
-31.1 C (-24.0 F)
1897
-35.0 C (-31.0 F)
1898
-31.1 C (-24.0 F)
1899
-37.8 C (-36.0 F)
1900
-32.2 C (-26.0 F)
1901
-35.0 C (-31.0 F)
1902
-33.3 C (-27.9 F)
1903
-36.1 C (-33.0 F)
1904
-38.9 C (-38.0 F)
1905
-35.6 C (-32.1 F)
1906
-32.2 C (-26.0 F)
1907
-36.7 C (-34.1 F)
1908
-33.3 C (-27.9 F)
1909
-33.3 C (-27.9 F)
1910
-34.4 C (-29.9 F)
1911
-37.8 C (-36.0 F)
1912
-41.1 C (-42.0 F)
1913
-30.0 C (-22.0 F)
1914
-34.4 C (-29.9 F)
1915
-34.4 C (-29.9 F)
1916
-38.9 C (-38.0 F)
1917
-35.6 C (-32.1 F)
1918
-34.4 C (-29.9 F)
1919
-34.4 C (-29.9 F)
1920
-31.1 C (-24.0 F)
1921
-31.1 C (-24.0 F)
1922
-32.8 C (-27.0 F)
1923
-33.9 C (-29.0 F)
1924
-37.2 C (-35.0 F)
1925
-33.3 C (-27.9 F)
1926
-33.9 C (-29.0 F)
1927
-34.4 C (-29.9 F)
1928
-34.4 C (-29.9 F)
1929
-37.2 C (-35.0 F)
1930
-32.8 C (-27.0 F)
1931
-23.3 C (-9.9 F)
1932
-28.9 C (-20.0 F)
1933
-37.8 C (-36.0 F)
1934
-31.1 C (-24.0 F)
1935
-37.8 C (-36.0 F)
1936
-40.0 C (-40.0 F)
1937
-36.7 C (-34.1 F)
1938
-31.7 C (-25.1 F)
1939
-32.2 C (-26.0 F)
1940
-32.2 C (-26.0 F)
1941
-30.0 C (-22.0 F)
1942
-32.2 C (-26.0 F)
1943
-37.2 C (-35.0 F)
1944
-29.4 C (-20.9 F)
1945
-30.6 C (-23.1 F)
1946
-32.8 C (-27.0 F)
1947
-28.3 C (-18.9 F)
1948
-35.6 C (-32.1 F)
1949
-32.8 C (-27.0 F)
1950
-33.3 C (-27.9 F)
1951
-37.2 C (-35.0 F)
1952
-33.3 C (-27.9 F)
1953
-30.0 C (-22.0 F)
1954
-35.0 C (-31.0 F)
1955
-33.3 C (-27.9 F)
1956
-30.0 C (-22.0 F)
1957
-28.3 C (-18.9 F)
1958
-30.0 C (-22.0 F)
1959
-29.4 C (-20.9 F)
1960
-30.0 C (-22.0 F)
1961
-31.7 C (-25.1 F)
1962
-36.7 C (-34.1 F)
1963
-32.2 C (-26.0 F)
1964
-30.6 C (-23.1 F)
1965
-35.6 C (-32.1 F)
1966
-33.9 C (-29.0 F)
1967
-38.3 C (-36.9 F)
1968
-32.8 C (-27.0 F)
1969
-30.0 C (-22.0 F)
1970
-38.9 C (-38.0 F)
1975
-27.2 C (-17.0 F)
1976
-32.2 C (-26.0 F)
1977
-37.8 C (-36.0 F)
1978
-31.1 C (-24.0 F)
1979
-33.9 C (-29.0 F)
1980
-27.8 C (-18.0 F)
1981
-33.9 C (-29.0 F)
1982
-35.6 C (-32.1 F)
1983
-37.2 C (-35.0 F)
1984
-35.0 C (-31.0 F)
1985
-34.4 C (-29.9 F)
1986
-32.2 C (-26.0 F)
1987
-30.0 C (-22.0 F)
1988
-35.6 C (-32.1 F)
1989
-35.0 C (-31.0 F)
1990
-31.7 C (-25.1 F)
1991
-28.3 C (-18.9 F)
1992
-28.9 C (-20.0 F)
1993
-31.1 C (-24.0 F)
1994
-36.1 C (-33.0 F)
1995
-26.7 C (-16.1 F)
1996
-39.4 C (-38.9 F)
1997
-30.0 C (-22.0 F)
1998
-26.1 C (-15.0 F)
1999
-31.1 C (-24.0 F)
2000
-30.6 C (-23.1 F)
2001
-29.4 C (-20.9 F)
2002
-23.9 C (-11.0 F)
2003
-29.4 C (-20.9 F)
2004
-32.8 C (-27.0 F)
2005
-32.2 C (-26.0 F)
2006
-27.8 C (-18.0 F)
2007
-30.0 C (-22.0 F)
2008
-31.1 C (-24.0 F)
2009
-34.4 C (-29.9 F)
Wettest day (Rx1day)
The wettest day of the year at New London, 1893 to 2009. The record is 154.9 mm (6.1 in) in 1957, marked on the chart; the median year is 53.1 mm (2.1 in).
Wettest day (Rx1day) at New London by year
Year
Wettest day (Rx1day)
1893
50.8 mm (2.0 in)
1894
47.5 mm (1.9 in)
1895
63.0 mm (2.5 in)
1896
76.2 mm (3.0 in)
1897
50.8 mm (2.0 in)
1898
94.0 mm (3.7 in)
1899
64.8 mm (2.6 in)
1900
73.7 mm (2.9 in)
1901
46.2 mm (1.8 in)
1902
26.4 mm (1.0 in)
1903
62.2 mm (2.4 in)
1904
76.2 mm (3.0 in)
1905
73.9 mm (2.9 in)
1906
47.0 mm (1.9 in)
1907
35.6 mm (1.4 in)
1908
48.8 mm (1.9 in)
1909
30.5 mm (1.2 in)
1910
33.0 mm (1.3 in)
1911
106.7 mm (4.2 in)
1912
50.0 mm (2.0 in)
1913
54.6 mm (2.1 in)
1914
61.5 mm (2.4 in)
1915
54.4 mm (2.1 in)
1916
54.6 mm (2.1 in)
1917
50.0 mm (2.0 in)
1918
33.0 mm (1.3 in)
1919
40.6 mm (1.6 in)
1920
36.8 mm (1.4 in)
1921
67.3 mm (2.6 in)
1922
49.5 mm (1.9 in)
1923
37.6 mm (1.5 in)
1924
45.7 mm (1.8 in)
1925
48.3 mm (1.9 in)
1926
58.9 mm (2.3 in)
1927
50.3 mm (2.0 in)
1928
49.5 mm (1.9 in)
1929
74.9 mm (2.9 in)
1930
59.2 mm (2.3 in)
1931
51.3 mm (2.0 in)
1932
54.6 mm (2.1 in)
1933
50.8 mm (2.0 in)
1934
66.0 mm (2.6 in)
1935
83.8 mm (3.3 in)
1936
84.6 mm (3.3 in)
1937
82.3 mm (3.2 in)
1938
45.7 mm (1.8 in)
1939
43.7 mm (1.7 in)
1940
53.1 mm (2.1 in)
1941
37.6 mm (1.5 in)
1942
64.0 mm (2.5 in)
1943
46.5 mm (1.8 in)
1944
59.4 mm (2.3 in)
1945
49.3 mm (1.9 in)
1946
61.7 mm (2.4 in)
1947
81.8 mm (3.2 in)
1948
48.0 mm (1.9 in)
1949
35.6 mm (1.4 in)
1950
35.6 mm (1.4 in)
1951
81.5 mm (3.2 in)
1952
69.9 mm (2.8 in)
1953
94.0 mm (3.7 in)
1954
36.8 mm (1.4 in)
1955
47.8 mm (1.9 in)
1956
59.7 mm (2.4 in)
1957
154.9 mm (6.1 in)
1958
49.8 mm (2.0 in)
1959
26.7 mm (1.1 in)
1960
68.1 mm (2.7 in)
1961
49.3 mm (1.9 in)
1962
87.6 mm (3.4 in)
1963
49.3 mm (1.9 in)
1964
53.3 mm (2.1 in)
1965
47.8 mm (1.9 in)
1966
44.5 mm (1.8 in)
1967
46.0 mm (1.8 in)
1968
46.7 mm (1.8 in)
1969
41.7 mm (1.6 in)
1970
43.7 mm (1.7 in)
1975
45.7 mm (1.8 in)
1976
40.9 mm (1.6 in)
1977
96.3 mm (3.8 in)
1978
46.5 mm (1.8 in)
1979
78.5 mm (3.1 in)
1980
62.5 mm (2.5 in)
1981
124.0 mm (4.9 in)
1982
62.7 mm (2.5 in)
1983
146.1 mm (5.8 in)
1984
59.2 mm (2.3 in)
1985
43.2 mm (1.7 in)
1986
78.2 mm (3.1 in)
1987
109.7 mm (4.3 in)
1988
33.5 mm (1.3 in)
1989
55.9 mm (2.2 in)
1990
89.4 mm (3.5 in)
1991
135.4 mm (5.3 in)
1992
132.6 mm (5.2 in)
1993
132.1 mm (5.2 in)
1994
64.0 mm (2.5 in)
1995
111.8 mm (4.4 in)
1996
41.4 mm (1.6 in)
1997
111.3 mm (4.4 in)
1998
43.9 mm (1.7 in)
1999
36.3 mm (1.4 in)
2000
52.8 mm (2.1 in)
2001
50.8 mm (2.0 in)
2002
86.9 mm (3.4 in)
2003
70.1 mm (2.8 in)
2004
53.3 mm (2.1 in)
2005
127.8 mm (5.0 in)
2006
68.1 mm (2.7 in)
2007
47.0 mm (1.9 in)
2008
32.3 mm (1.3 in)
2009
50.8 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at New London, 1893 to 2009. The record is 262.1 mm (10.3 in) in 1991, marked on the chart; the median year is 86.4 mm (3.4 in).
Wettest five days (Rx5day) at New London by year
Year
Wettest five days (Rx5day)
1893
77.2 mm (3.0 in)
1894
67.7 mm (2.7 in)
1895
64.8 mm (2.6 in)
1896
113.8 mm (4.5 in)
1897
67.4 mm (2.7 in)
1898
122.4 mm (4.8 in)
1899
116.3 mm (4.6 in)
1900
114.1 mm (4.5 in)
1901
57.9 mm (2.3 in)
1902
42.1 mm (1.7 in)
1903
148.8 mm (5.9 in)
1904
129.6 mm (5.1 in)
1905
88.2 mm (3.5 in)
1906
66.0 mm (2.6 in)
1907
66.4 mm (2.6 in)
1908
92.5 mm (3.6 in)
1909
49.1 mm (1.9 in)
1910
52.6 mm (2.1 in)
1911
132.2 mm (5.2 in)
1912
85.8 mm (3.4 in)
1913
132.9 mm (5.2 in)
1914
107.3 mm (4.2 in)
1915
78.2 mm (3.1 in)
1916
95.2 mm (3.7 in)
1917
55.8 mm (2.2 in)
1918
44.5 mm (1.8 in)
1919
56.1 mm (2.2 in)
1920
83.8 mm (3.3 in)
1921
72.1 mm (2.8 in)
1922
63.5 mm (2.5 in)
1923
58.9 mm (2.3 in)
1924
73.3 mm (2.9 in)
1925
63.0 mm (2.5 in)
1926
140.4 mm (5.5 in)
1927
61.0 mm (2.4 in)
1928
72.4 mm (2.9 in)
1929
114.1 mm (4.5 in)
1930
117.7 mm (4.6 in)
1931
81.6 mm (3.2 in)
1932
54.6 mm (2.1 in)
1933
66.5 mm (2.6 in)
1934
83.3 mm (3.3 in)
1935
182.9 mm (7.2 in)
1936
113.4 mm (4.5 in)
1937
96.6 mm (3.8 in)
1938
78.7 mm (3.1 in)
1939
57.2 mm (2.3 in)
1940
95.6 mm (3.8 in)
1941
87.9 mm (3.5 in)
1942
100.0 mm (3.9 in)
1943
76.7 mm (3.0 in)
1944
106.1 mm (4.2 in)
1945
77.7 mm (3.1 in)
1946
93.3 mm (3.7 in)
1947
96.0 mm (3.8 in)
1948
71.6 mm (2.8 in)
1949
57.5 mm (2.3 in)
1950
97.6 mm (3.8 in)
1951
103.9 mm (4.1 in)
1952
140.8 mm (5.5 in)
1953
209.5 mm (8.2 in)
1954
49.8 mm (2.0 in)
1955
94.2 mm (3.7 in)
1956
160.6 mm (6.3 in)
1957
199.8 mm (7.9 in)
1958
49.8 mm (2.0 in)
1959
54.5 mm (2.1 in)
1960
149.1 mm (5.9 in)
1961
72.7 mm (2.9 in)
1962
99.6 mm (3.9 in)
1963
58.4 mm (2.3 in)
1964
83.8 mm (3.3 in)
1965
93.0 mm (3.7 in)
1966
57.2 mm (2.3 in)
1967
68.7 mm (2.7 in)
1968
118.0 mm (4.6 in)
1969
47.3 mm (1.9 in)
1970
61.4 mm (2.4 in)
1975
58.1 mm (2.3 in)
1976
54.6 mm (2.1 in)
1977
129.4 mm (5.1 in)
1978
104.4 mm (4.1 in)
1979
113.3 mm (4.5 in)
1980
81.0 mm (3.2 in)
1981
146.8 mm (5.8 in)
1982
91.6 mm (3.6 in)
1983
147.4 mm (5.8 in)
1984
117.6 mm (4.6 in)
1985
85.1 mm (3.4 in)
1986
100.0 mm (3.9 in)
1987
146.0 mm (5.7 in)
1988
42.4 mm (1.7 in)
1989
55.9 mm (2.2 in)
1990
114.9 mm (4.5 in)
1991
262.1 mm (10.3 in)
1992
161.4 mm (6.4 in)
1993
133.9 mm (5.3 in)
1994
112.2 mm (4.4 in)
1995
135.1 mm (5.3 in)
1996
77.7 mm (3.1 in)
1997
201.4 mm (7.9 in)
1998
66.2 mm (2.6 in)
1999
82.6 mm (3.3 in)
2000
87.4 mm (3.4 in)
2001
86.4 mm (3.4 in)
2002
124.3 mm (4.9 in)
2003
144.0 mm (5.7 in)
2004
72.2 mm (2.8 in)
2005
127.8 mm (5.0 in)
2006
94.5 mm (3.7 in)
2007
71.1 mm (2.8 in)
2008
51.0 mm (2.0 in)
2009
74.9 mm (2.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at New London, 1893 to 2009. The record is 64 days in 1952, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at New London by year
Year
Longest dry spell (CDD)
1893
22 days
1894
35 days
1895
41 days
1896
43 days
1897
36 days
1898
32 days
1899
30 days
1900
25 days
1901
32 days
1902
33 days
1903
27 days
1904
53 days
1905
34 days
1906
25 days
1907
26 days
1908
26 days
1909
24 days
1910
36 days
1911
47 days
1912
50 days
1913
39 days
1914
45 days
1915
34 days
1916
53 days
1917
43 days
1918
28 days
1919
22 days
1920
32 days
1921
36 days
1922
31 days
1923
37 days
1924
32 days
1925
38 days
1926
27 days
1927
27 days
1928
47 days
1929
16 days
1930
31 days
1931
31 days
1932
32 days
1933
29 days
1934
34 days
1935
20 days
1936
35 days
1937
20 days
1938
26 days
1939
50 days
1940
26 days
1941
42 days
1942
39 days
1943
36 days
1944
35 days
1945
29 days
1946
26 days
1947
27 days
1948
28 days
1949
31 days
1950
34 days
1951
21 days
1952
64 days
1953
32 days
1954
30 days
1955
17 days
1956
43 days
1957
29 days
1958
28 days
1959
42 days
1960
42 days
1961
62 days
1962
38 days
1963
20 days
1964
38 days
1965
22 days
1966
30 days
1967
24 days
1968
39 days
1969
23 days
1970
35 days
1975
31 days
1976
32 days
1977
18 days
1978
35 days
1979
19 days
1980
30 days
1981
29 days
1982
41 days
1983
18 days
1984
21 days
1985
15 days
1986
29 days
1987
27 days
1988
32 days
1989
38 days
1990
38 days
1991
40 days
1992
24 days
1993
14 days
1994
22 days
1995
36 days
1996
23 days
1997
24 days
1998
21 days
1999
26 days
2000
21 days
2001
24 days
2002
37 days
2003
28 days
2004
25 days
2005
20 days
2006
40 days
2007
42 days
2008
32 days
2009
21 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
101 years with a frost
Across 101 years with a frost, the median last spring frost at New London falls on 8 May and the median first autumn frost on 2 October, which leaves a median of 150 days between them.
In 1979 to 2008 the median growing season was 157 days. That is 12 days more than in 1897 to 1929.
Fitted over all years, the growing season changes by +1.6 days per decade at this station.
Frost dates and growing season at New London
Measure
Median, all years
Earliest period (1897 to 1929)
Recent period (1979 to 2008)
Recent against earliest
Fitted trend
Last spring frost
8 May
11 May
4 May
7 days earlier
-1.1 days per decade
First autumn frost
2 October
1 October
4 October
3 days later
+0.5 days per decade
Growing days
150 days
145 days
157 days
12 days more
+1.6 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
102 years, 1895 to 2008
A day with at least 55.3 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 174.7 mm (6.9 in) of rain is expected about once in 100 years.
Rainfall return levels at New London: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
55.3 mm (2.2 in)
5 years
77.9 mm (3.1 in)
10 years
96.0 mm (3.8 in)
25 years
123.3 mm (4.9 in)
50 years
147.2 mm (5.8 in)
100 years
174.7 mm (6.9 in)
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 102 years of values from 1895 to 2008.
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: 154.9 mm (6.1 in) in 1957; 146.1 mm (5.8 in) in 1983; 135.4 mm (5.3 in) in 1991.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of New London, at 1976 and 1989. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1976 ran 0.3 C (0.5 F) higher than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1989 ran 0.4 C (0.8 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at New London, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1976
+0.3
+0.5
possible
5
1989
-0.4
-0.8
likely
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 New London standing records by year: CSV or JSON. Field meanings are on the data page.
Data for New London 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.