Record envelope, standing records and threshold days for Lynnville 4 SSW (USC00405535), Tennessee, United States, with 82 years of record.
Key Facts for Lynnville 4 SSW
Lynnville 4 SSW (USC00405535) is a weather station in Tennessee, United States at 35.33 latitude and -87.05 longitude, 223 m (732 ft) above sea level.
The station reports from 1890 to 1971, 82 years of record.
1,464 records set at Lynnville 4 SSW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Lynnville 4 SSW tied a daily record high maximum temperature of 20.6 C (69.1 F) on 20 December 1971.
About the Station
Location: Tennessee, United States, 35.33 latitude, -87.05 longitude.
Elevation: 223 m (732 ft).
Period of record: 1890 to 1971, 82 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 Lynnville 4 SSW. 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 Lynnville 4 SSW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
25.6 C (78.1 F)
-28.3 C (-18.9 F)
n/a
n/a
Feb
27.2 C (81.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Mar
31.7 C (89.1 F)
-15.6 C (3.9 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-6.7 C (19.9 F)
n/a
n/a
May
35.6 C (96.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
39.4 C (102.9 F)
2.2 C (36.0 F)
n/a
n/a
Jul
42.8 C (109.0 F)
6.7 C (44.1 F)
n/a
n/a
Aug
41.1 C (106.0 F)
5.0 C (41.0 F)
n/a
n/a
Sep
41.7 C (107.1 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
28.9 C (84.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Dec
25.6 C (78.1 F)
-20.6 C (-5.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Lynnville 4 SSW still stand. 1925 holds the most, with 47.
Standing records at Lynnville 4 SSW by the year they were set
Year set
Standing records
1896
1
1897
10
1898
13
1899
39
1900
16
1901
35
1902
23
1903
24
1904
11
1905
24
1906
15
1907
38
1908
15
1909
14
1910
16
1911
16
1912
16
1913
15
1914
24
1915
18
1916
17
1917
25
1918
17
1919
23
1920
12
1921
22
1922
31
1923
17
1924
40
1925
47
1926
18
1927
40
1928
23
1929
23
1930
38
1931
15
1932
20
1933
17
1934
10
1935
9
1936
20
1937
22
1938
10
1939
5
1940
35
1941
13
1942
18
1943
21
1944
17
1945
11
1946
16
1947
18
1948
16
1949
8
1950
25
1951
28
1952
27
1953
15
1954
22
1955
12
1956
17
1957
5
1958
16
1959
8
1960
20
1961
17
1962
26
1963
21
1964
20
1965
13
1966
14
1967
28
1968
15
1969
6
1970
23
1971
9
All-Time Record Progression
2 new records
2 all-time records were set at Lynnville 4 SSW between 29 July 1930 and 30 January 1966. Each dot is a new record.
When Lynnville 4 SSW set new all-time records
Date
Kind
Detail
1930-07-29
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
1966-01-30
Record low minimum temperature
Record low minimum temperature -28.3 C (-18.9 F)
Wettest Day of Each Month
Mar: 214.6 mm (8.4 in)
The wettest day on record for each calendar month at Lynnville 4 SSW. The most was 214.6 mm (8.4 in) on 28 March 1902.
Record daily precipitation for each month at Lynnville 4 SSW
Month
Record daily precipitation (mm)
Date
Jan
105.2 mm (4.1 in)
27 January 1952
Feb
130.8 mm (5.1 in)
17 February 1893
Mar
214.6 mm (8.4 in)
28 March 1902
Apr
121.9 mm (4.8 in)
12 April 1927
May
165.4 mm (6.5 in)
31 May 1893
Jun
98.3 mm (3.9 in)
10 June 1910
Jul
107.4 mm (4.2 in)
4 July 1941
Aug
105.2 mm (4.1 in)
24 August 1894
Sep
105.7 mm (4.2 in)
28 September 1906
Oct
116.8 mm (4.6 in)
16 October 1932
Nov
129.0 mm (5.1 in)
18 November 1938
Dec
142.7 mm (5.6 in)
13 December 1956
Period of Record Coverage
1890 to 1971
Complete yearUnder 90 percent of days
77 years of record at Lynnville 4 SSW, 1890 to 1971. 7 years have data for under 90 percent of days and are left out of rankings: 1890, 1896, 1897, 1920, 1926, 1927, 1941.
Cooler than the station meanWarmer than the station mean
One stripe for each of 63 complete years at Lynnville 4 SSW, 1898 to 1971. Blue stripes are years cooler than the station's own mean of 14.9 C (58.9 F); red stripes are warmer. The coolest year was 1917, at 13.5 C (56.3 F), and the warmest was 1921, at 16.6 C (61.8 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Lynnville 4 SSW as warming stripes, 1898 to 1971
Year
Annual mean temperature
Difference from the station mean
1898
15.3 C
+0.41 C
1899
15.1 C
+0.21 C
1900
15.8 C
+0.88 C
1901
13.9 C
-1.07 C
1902
15.0 C
+0.03 C
1903
14.5 C
-0.41 C
1904
14.5 C
-0.48 C
1905
14.6 C
-0.31 C
1906
14.8 C
-0.10 C
1907
14.9 C
+0.01 C
1908
15.6 C
+0.67 C
1910
14.2 C
-0.71 C
1911
16.0 C
+1.11 C
1912
14.1 C
-0.87 C
1913
15.2 C
+0.25 C
1914
14.6 C
-0.30 C
1915
14.8 C
-0.09 C
1917
13.5 C
-1.45 C
1918
15.2 C
+0.30 C
1919
15.5 C
+0.55 C
1921
16.6 C
+1.64 C
1922
16.1 C
+1.12 C
1923
15.0 C
+0.11 C
1929
15.1 C
+0.15 C
1930
15.7 C
+0.74 C
1931
16.3 C
+1.35 C
1932
15.6 C
+0.65 C
1933
16.2 C
+1.31 C
1934
15.1 C
+0.20 C
1935
15.3 C
+0.32 C
1936
15.1 C
+0.16 C
1937
15.2 C
+0.30 C
1938
16.0 C
+1.11 C
1939
15.6 C
+0.65 C
1940
13.8 C
-1.10 C
1942
14.8 C
-0.10 C
1944
15.3 C
+0.34 C
1945
15.1 C
+0.18 C
1946
15.6 C
+0.68 C
1947
14.5 C
-0.44 C
1948
14.9 C
-0.05 C
1949
15.1 C
+0.19 C
1950
14.5 C
-0.40 C
1951
15.1 C
+0.12 C
1952
14.9 C
-0.05 C
1953
15.4 C
+0.44 C
1954
15.3 C
+0.37 C
1955
14.9 C
-0.07 C
1956
15.3 C
+0.39 C
1957
15.4 C
+0.46 C
1958
13.7 C
-1.28 C
1959
14.8 C
-0.15 C
1960
13.8 C
-1.15 C
1961
14.2 C
-0.71 C
1962
14.6 C
-0.38 C
1963
13.8 C
-1.16 C
1964
14.7 C
-0.27 C
1965
14.8 C
-0.12 C
1966
13.9 C
-1.07 C
1968
13.8 C
-1.17 C
1969
13.8 C
-1.14 C
1970
14.3 C
-0.64 C
1971
14.6 C
-0.30 C
The annual mean temperature here has fallen by 0.09 C (0.01 to 0.16) per decade over 1898 to 1971. In Fahrenheit: 0.15 F (0.01 to 0.30) per decade. The slope is a straight line fitted to 63 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Lynnville 4 SSW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.09 C (-0.16 to -0.01) per decade
-0.15 F (-0.30 to -0.01) per decade
1898 to 1971
63
Fall
Mean daily maximum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.1 to 0.5) per decade
1898 to 1971
63
Rise
Mean daily minimum
-0.3 C (-0.4 to -0.3) per decade
-0.6 F (-0.7 to -0.5) per decade
1898 to 1971
63
Fall
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
1890 to 1971
Yearly extremes at Lynnville 4 SSW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1930
36.7 C (98.1 F)
77
Coldest night (TNn)
-28.3 C (-18.9 F)
1966
-15.0 C (5.0 F)
77
Wettest day (Rx1day)
214.6 mm (8.4 in)
1902
82.6 mm (3.3 in)
81
Wettest five days (Rx5day)
247.6 mm (9.7 in)
1902
131.3 mm (5.2 in)
81
Longest dry spell (CDD)
48 days
1950
21 days
81
Hottest day (TXx)
The hottest day of the year at Lynnville 4 SSW, 1890 to 1971. The record is 42.8 C (109.0 F) in 1930, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Lynnville 4 SSW by year
Year
Hottest day (TXx)
1890
30.0 C (86.0 F)
1891
n/a
1893
n/a
1894
n/a
1895
n/a
1896
35.0 C (95.0 F)
1897
36.7 C (98.1 F)
1898
35.0 C (95.0 F)
1899
36.7 C (98.1 F)
1900
37.2 C (99.0 F)
1901
38.9 C (102.0 F)
1902
37.2 C (99.0 F)
1903
35.0 C (95.0 F)
1904
33.9 C (93.0 F)
1905
35.0 C (95.0 F)
1906
33.9 C (93.0 F)
1907
35.6 C (96.1 F)
1908
35.0 C (95.0 F)
1909
35.0 C (95.0 F)
1910
33.3 C (91.9 F)
1911
36.1 C (97.0 F)
1912
33.9 C (93.0 F)
1913
36.7 C (98.1 F)
1914
37.8 C (100.0 F)
1915
35.6 C (96.1 F)
1916
33.9 C (93.0 F)
1917
34.4 C (93.9 F)
1918
36.7 C (98.1 F)
1919
34.4 C (93.9 F)
1920
35.0 C (95.0 F)
1921
36.7 C (98.1 F)
1922
36.1 C (97.0 F)
1923
37.2 C (99.0 F)
1924
38.3 C (100.9 F)
1925
41.7 C (107.1 F)
1926
37.2 C (99.0 F)
1927
38.3 C (100.9 F)
1928
35.0 C (95.0 F)
1929
34.4 C (93.9 F)
1930
42.8 C (109.0 F)
1931
38.9 C (102.0 F)
1932
36.7 C (98.1 F)
1933
37.2 C (99.0 F)
1934
38.9 C (102.0 F)
1935
38.9 C (102.0 F)
1936
38.9 C (102.0 F)
1937
36.7 C (98.1 F)
1938
36.7 C (98.1 F)
1939
38.3 C (100.9 F)
1940
36.1 C (97.0 F)
1941
37.2 C (99.0 F)
1942
37.8 C (100.0 F)
1943
37.2 C (99.0 F)
1944
38.3 C (100.9 F)
1945
38.9 C (102.0 F)
1946
35.6 C (96.1 F)
1947
39.4 C (102.9 F)
1948
37.2 C (99.0 F)
1949
35.0 C (95.0 F)
1950
34.4 C (93.9 F)
1951
40.6 C (105.1 F)
1952
41.7 C (107.1 F)
1953
38.3 C (100.9 F)
1954
40.6 C (105.1 F)
1955
36.7 C (98.1 F)
1956
37.8 C (100.0 F)
1957
37.2 C (99.0 F)
1958
36.7 C (98.1 F)
1959
36.1 C (97.0 F)
1960
36.7 C (98.1 F)
1961
33.9 C (93.0 F)
1962
38.9 C (102.0 F)
1963
35.6 C (96.1 F)
1964
39.4 C (102.9 F)
1965
35.6 C (96.1 F)
1966
38.3 C (100.9 F)
1967
33.9 C (93.0 F)
1968
38.3 C (100.9 F)
1969
36.7 C (98.1 F)
1970
37.2 C (99.0 F)
1971
36.7 C (98.1 F)
Coldest night (TNn)
The coldest night of the year at Lynnville 4 SSW, 1890 to 1971. The record is -28.3 C (-18.9 F) in 1966, marked on the chart; the median year is -15.0 C (5.0 F).
Coldest night (TNn) at Lynnville 4 SSW by year
Year
Coldest night (TNn)
1890
1.1 C (34.0 F)
1891
n/a
1893
n/a
1894
n/a
1895
n/a
1896
12.2 C (54.0 F)
1897
-16.7 C (1.9 F)
1898
-12.2 C (10.0 F)
1899
-25.0 C (-13.0 F)
1900
-15.6 C (3.9 F)
1901
-18.9 C (-2.0 F)
1902
-12.2 C (10.0 F)
1903
-17.2 C (1.0 F)
1904
-11.7 C (10.9 F)
1905
-26.1 C (-15.0 F)
1906
-11.1 C (12.0 F)
1907
-11.1 C (12.0 F)
1908
-11.1 C (12.0 F)
1909
-14.4 C (6.1 F)
1910
-22.8 C (-9.0 F)
1911
-17.8 C (0.0 F)
1912
-20.0 C (-4.0 F)
1913
-10.0 C (14.0 F)
1914
-15.0 C (5.0 F)
1915
-7.8 C (18.0 F)
1916
-20.0 C (-4.0 F)
1917
-16.7 C (1.9 F)
1918
-21.7 C (-7.1 F)
1919
-16.1 C (3.0 F)
1920
-11.7 C (10.9 F)
1921
-11.1 C (12.0 F)
1922
-11.1 C (12.0 F)
1923
-12.2 C (10.0 F)
1924
-15.0 C (5.0 F)
1925
-11.1 C (12.0 F)
1926
-12.2 C (10.0 F)
1927
-12.8 C (9.0 F)
1928
-16.7 C (1.9 F)
1929
-16.1 C (3.0 F)
1930
-16.7 C (1.9 F)
1931
-12.2 C (10.0 F)
1932
-15.6 C (3.9 F)
1933
-21.7 C (-7.1 F)
1934
-15.0 C (5.0 F)
1935
-15.0 C (5.0 F)
1936
-18.3 C (-0.9 F)
1937
-17.8 C (0.0 F)
1938
-11.7 C (10.9 F)
1939
-11.7 C (10.9 F)
1940
-25.6 C (-14.1 F)
1941
-11.7 C (10.9 F)
1942
-20.6 C (-5.1 F)
1943
-14.4 C (6.1 F)
1944
-14.4 C (6.1 F)
1945
-16.7 C (1.9 F)
1946
-13.3 C (8.1 F)
1947
-15.6 C (3.9 F)
1948
-19.4 C (-2.9 F)
1949
-12.8 C (9.0 F)
1950
-19.4 C (-2.9 F)
1951
-23.3 C (-9.9 F)
1952
-10.0 C (14.0 F)
1953
-14.4 C (6.1 F)
1954
-11.1 C (12.0 F)
1955
-13.3 C (8.1 F)
1956
-10.6 C (12.9 F)
1957
-14.4 C (6.1 F)
1958
-23.9 C (-11.0 F)
1959
-16.1 C (3.0 F)
1960
-16.7 C (1.9 F)
1961
-16.1 C (3.0 F)
1962
-21.7 C (-7.1 F)
1963
-21.7 C (-7.1 F)
1964
-15.0 C (5.0 F)
1965
-17.2 C (1.0 F)
1966
-28.3 C (-18.9 F)
1967
-15.0 C (5.0 F)
1968
-14.4 C (6.1 F)
1969
-15.6 C (3.9 F)
1970
-21.1 C (-6.0 F)
1971
-20.6 C (-5.1 F)
Wettest day (Rx1day)
The wettest day of the year at Lynnville 4 SSW, 1890 to 1971. The record is 214.6 mm (8.4 in) in 1902, marked on the chart; the median year is 82.6 mm (3.3 in).
Wettest day (Rx1day) at Lynnville 4 SSW by year
Year
Wettest day (Rx1day)
1890
21.6 mm (0.9 in)
1891
93.5 mm (3.7 in)
1893
165.4 mm (6.5 in)
1894
105.2 mm (4.1 in)
1895
89.7 mm (3.5 in)
1896
104.1 mm (4.1 in)
1897
74.7 mm (2.9 in)
1898
61.0 mm (2.4 in)
1899
89.7 mm (3.5 in)
1900
76.2 mm (3.0 in)
1901
67.6 mm (2.7 in)
1902
214.6 mm (8.4 in)
1903
56.1 mm (2.2 in)
1904
64.0 mm (2.5 in)
1905
86.9 mm (3.4 in)
1906
105.7 mm (4.2 in)
1907
80.3 mm (3.2 in)
1908
70.4 mm (2.8 in)
1909
67.3 mm (2.6 in)
1910
98.3 mm (3.9 in)
1911
85.6 mm (3.4 in)
1912
86.6 mm (3.4 in)
1913
92.2 mm (3.6 in)
1914
85.9 mm (3.4 in)
1915
78.0 mm (3.1 in)
1916
74.4 mm (2.9 in)
1917
98.6 mm (3.9 in)
1918
79.0 mm (3.1 in)
1919
68.6 mm (2.7 in)
1920
58.4 mm (2.3 in)
1921
116.1 mm (4.6 in)
1922
69.3 mm (2.7 in)
1923
51.3 mm (2.0 in)
1924
72.4 mm (2.9 in)
1925
76.2 mm (3.0 in)
1926
52.6 mm (2.1 in)
1927
121.9 mm (4.8 in)
1928
85.1 mm (3.4 in)
1929
89.4 mm (3.5 in)
1930
50.8 mm (2.0 in)
1931
60.2 mm (2.4 in)
1932
116.8 mm (4.6 in)
1933
68.6 mm (2.7 in)
1934
78.0 mm (3.1 in)
1935
78.7 mm (3.1 in)
1936
94.7 mm (3.7 in)
1937
95.3 mm (3.8 in)
1938
129.0 mm (5.1 in)
1939
82.6 mm (3.3 in)
1940
92.2 mm (3.6 in)
1941
107.4 mm (4.2 in)
1942
64.8 mm (2.6 in)
1943
72.1 mm (2.8 in)
1944
79.5 mm (3.1 in)
1945
91.4 mm (3.6 in)
1946
99.8 mm (3.9 in)
1947
46.2 mm (1.8 in)
1948
105.7 mm (4.2 in)
1949
68.3 mm (2.7 in)
1950
77.5 mm (3.1 in)
1951
97.8 mm (3.9 in)
1952
105.2 mm (4.1 in)
1953
82.0 mm (3.2 in)
1954
87.6 mm (3.4 in)
1955
111.8 mm (4.4 in)
1956
142.7 mm (5.6 in)
1957
84.6 mm (3.3 in)
1958
83.8 mm (3.3 in)
1959
81.3 mm (3.2 in)
1960
75.9 mm (3.0 in)
1961
107.4 mm (4.2 in)
1962
59.7 mm (2.4 in)
1963
99.1 mm (3.9 in)
1964
90.9 mm (3.6 in)
1965
57.4 mm (2.3 in)
1966
82.6 mm (3.3 in)
1967
55.9 mm (2.2 in)
1968
78.0 mm (3.1 in)
1969
90.9 mm (3.6 in)
1970
74.4 mm (2.9 in)
1971
65.3 mm (2.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Lynnville 4 SSW, 1890 to 1971. The record is 247.6 mm (9.7 in) in 1902, marked on the chart; the median year is 131.3 mm (5.2 in).
Wettest five days (Rx5day) at Lynnville 4 SSW by year
Year
Wettest five days (Rx5day)
1890
42.9 mm (1.7 in)
1891
21.3 mm (0.8 in)
1893
237.8 mm (9.4 in)
1894
121.7 mm (4.8 in)
1895
135.4 mm (5.3 in)
1896
147.5 mm (5.8 in)
1897
136.4 mm (5.4 in)
1898
134.7 mm (5.3 in)
1899
103.6 mm (4.1 in)
1900
110.7 mm (4.4 in)
1901
155.7 mm (6.1 in)
1902
247.6 mm (9.7 in)
1903
119.9 mm (4.7 in)
1904
78.7 mm (3.1 in)
1905
138.2 mm (5.4 in)
1906
153.9 mm (6.1 in)
1907
82.5 mm (3.2 in)
1908
99.8 mm (3.9 in)
1909
110.7 mm (4.4 in)
1910
119.6 mm (4.7 in)
1911
134.9 mm (5.3 in)
1912
171.7 mm (6.8 in)
1913
101.4 mm (4.0 in)
1914
160.3 mm (6.3 in)
1915
144.8 mm (5.7 in)
1916
199.2 mm (7.8 in)
1917
116.9 mm (4.6 in)
1918
95.5 mm (3.8 in)
1919
139.9 mm (5.5 in)
1920
88.1 mm (3.5 in)
1921
181.4 mm (7.1 in)
1922
110.4 mm (4.3 in)
1923
91.1 mm (3.6 in)
1924
133.4 mm (5.3 in)
1925
113.2 mm (4.5 in)
1926
92.1 mm (3.6 in)
1927
177.3 mm (7.0 in)
1928
97.8 mm (3.9 in)
1929
132.1 mm (5.2 in)
1930
73.2 mm (2.9 in)
1931
97.3 mm (3.8 in)
1932
168.9 mm (6.6 in)
1933
141.2 mm (5.6 in)
1934
113.5 mm (4.5 in)
1935
112.9 mm (4.4 in)
1936
125.0 mm (4.9 in)
1937
174.5 mm (6.9 in)
1938
141.0 mm (5.6 in)
1939
124.0 mm (4.9 in)
1940
114.3 mm (4.5 in)
1941
135.8 mm (5.3 in)
1942
105.8 mm (4.2 in)
1943
103.1 mm (4.1 in)
1944
141.0 mm (5.6 in)
1945
136.2 mm (5.4 in)
1946
143.2 mm (5.6 in)
1947
99.5 mm (3.9 in)
1948
219.8 mm (8.7 in)
1949
130.8 mm (5.1 in)
1950
137.1 mm (5.4 in)
1951
134.2 mm (5.3 in)
1952
128.8 mm (5.1 in)
1953
102.9 mm (4.1 in)
1954
105.4 mm (4.1 in)
1955
190.1 mm (7.5 in)
1956
223.7 mm (8.8 in)
1957
201.6 mm (7.9 in)
1958
154.9 mm (6.1 in)
1959
94.9 mm (3.7 in)
1960
92.5 mm (3.6 in)
1961
145.2 mm (5.7 in)
1962
183.0 mm (7.2 in)
1963
111.8 mm (4.4 in)
1964
144.8 mm (5.7 in)
1965
107.2 mm (4.2 in)
1966
126.3 mm (5.0 in)
1967
133.6 mm (5.3 in)
1968
157.3 mm (6.2 in)
1969
131.3 mm (5.2 in)
1970
131.3 mm (5.2 in)
1971
101.8 mm (4.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Lynnville 4 SSW, 1890 to 1971. The record is 48 days in 1950, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Lynnville 4 SSW by year
Year
Longest dry spell (CDD)
1890
6 days
1891
23 days
1893
21 days
1894
40 days
1895
19 days
1896
18 days
1897
23 days
1898
22 days
1899
26 days
1900
15 days
1901
41 days
1902
17 days
1903
21 days
1904
22 days
1905
16 days
1906
26 days
1907
22 days
1908
23 days
1909
17 days
1910
17 days
1911
18 days
1912
20 days
1913
18 days
1914
23 days
1915
12 days
1916
19 days
1917
22 days
1918
18 days
1919
22 days
1920
30 days
1921
23 days
1922
15 days
1923
39 days
1924
33 days
1925
25 days
1926
19 days
1927
25 days
1928
32 days
1929
25 days
1930
19 days
1931
20 days
1932
29 days
1933
17 days
1934
16 days
1935
34 days
1936
26 days
1937
10 days
1938
19 days
1939
17 days
1940
24 days
1941
35 days
1942
18 days
1943
23 days
1944
32 days
1945
16 days
1946
17 days
1947
24 days
1948
26 days
1949
16 days
1950
48 days
1951
25 days
1952
30 days
1953
33 days
1954
24 days
1955
23 days
1956
18 days
1957
20 days
1958
23 days
1959
20 days
1960
17 days
1961
29 days
1962
19 days
1963
19 days
1964
22 days
1965
22 days
1966
15 days
1967
17 days
1968
16 days
1969
21 days
1970
18 days
1971
15 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
63 years with a frost
Across 63 years with a frost, the median last spring frost at Lynnville 4 SSW falls on 12 April and the median first autumn frost on 21 October, which leaves a median of 193 days between them.
In 1939 to 1971 the median growing season was 179 days. That is 25 days fewer than in 1898 to 1935.
Fitted over all years, the growing season changes by -4.4 days per decade at this station.
Frost dates and growing season at Lynnville 4 SSW
Measure
Median, all years
Earliest period (1898 to 1935)
Recent period (1939 to 1971)
Recent against earliest
Fitted trend
Last spring frost
12 April
6 April
21 April
15 days later
+2.6 days per decade
First autumn frost
21 October
28 October
17 October
11 days earlier
-1.8 days per decade
Growing days
193 days
204 days
179 days
25 days fewer
-4.4 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
76 years, 1893 to 1971
A day with at least 81.2 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 166.2 mm (6.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Lynnville 4 SSW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
81.2 mm (3.2 in)
5 years
102.0 mm (4.0 in)
10 years
116.6 mm (4.6 in)
25 years
135.8 mm (5.3 in)
50 years
150.8 mm (5.9 in)
100 years
166.2 mm (6.5 in)
Longer than the 76 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, 76 years of values from 1893 to 1971.
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: 214.6 mm (8.4 in) in 1902; 165.4 mm (6.5 in) in 1893; 142.7 mm (5.6 in) in 1956.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Lynnville 4 SSW, at 1956. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1956 ran 0.3 C (0.5 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Lynnville 4 SSW, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1956
+0.3
+0.5
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 Lynnville 4 SSW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lynnville 4 SSW 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.