Lynnville 4 SSW Weather Records (USC00405535)

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

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

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

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.

Days with data per year at Lynnville 4 SSW
Year	Days with data	Share of year	Complete
1890	1	0%	No
1896	3	1%	No
1897	248	68%	No
1898	362	99%	Yes
1899	359	98%	Yes
1900	363	99%	Yes
1901	365	100%	Yes
1902	359	98%	Yes
1903	363	99%	Yes
1904	360	98%	Yes
1905	362	99%	Yes
1906	365	100%	Yes
1907	357	98%	Yes
1908	356	97%	Yes
1909	344	94%	Yes
1910	365	100%	Yes
1911	355	97%	Yes
1912	364	99%	Yes
1913	363	99%	Yes
1914	363	99%	Yes
1915	365	100%	Yes
1916	332	91%	Yes
1917	364	100%	Yes
1918	363	99%	Yes
1919	362	99%	Yes
1920	228	62%	No
1921	364	100%	Yes
1922	361	99%	Yes
1923	365	100%	Yes
1924	345	94%	Yes
1925	349	96%	Yes
1926	304	83%	No
1927	261	72%	No
1928	363	99%	Yes
1929	361	99%	Yes
1930	364	100%	Yes
1931	363	99%	Yes
1932	363	99%	Yes
1933	363	99%	Yes
1934	352	96%	Yes
1935	359	98%	Yes
1936	351	96%	Yes
1937	360	99%	Yes
1938	362	99%	Yes
1939	364	100%	Yes
1940	355	97%	Yes
1941	321	88%	No
1942	365	100%	Yes
1943	332	91%	Yes
1944	366	100%	Yes
1945	365	100%	Yes
1946	363	99%	Yes
1947	363	99%	Yes
1948	363	99%	Yes
1949	364	100%	Yes
1950	365	100%	Yes
1951	364	100%	Yes
1952	365	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	363	99%	Yes
1956	364	99%	Yes
1957	362	99%	Yes
1958	365	100%	Yes
1959	363	99%	Yes
1960	356	97%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	334	92%	Yes
1968	365	100%	Yes
1969	365	100%	Yes
1970	360	99%	Yes
1971	359	98%	Yes

Latest Records

Latest records at Lynnville 4 SSW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 December 1971	Lynnville 4 SSW, US	daily high max (Tie)	20.6 C (69.1 F)	tie	29 years	4 of 100 (Routine)
10 December 1971	Lynnville 4 SSW, US	daily high max	21.1 C (70.0 F)	0.5 C (0.9 F)	24 years	15 of 100 (Routine)
2 November 1971	Lynnville 4 SSW, US	daily high min (Tie)	18.3 C (64.9 F)	tie	25 years	3 of 100 (Routine)
1 November 1971	Lynnville 4 SSW, US	daily high min (Tie)	18.3 C (64.9 F)	tie	41 years	5 of 100 (Routine)
23 October 1971	Lynnville 4 SSW, US	daily high min (Tie)	17.8 C (64.0 F)	tie	52 years	5 of 100 (Routine)
26 September 1971	Lynnville 4 SSW, US	daily high min (Tie)	19.4 C (66.9 F)	tie	68 years	7 of 100 (Routine)
24 September 1971	Lynnville 4 SSW, US	daily rain	65.3 mm (2.6 in)	36.1 mm (1.4 in)	68 years	49 of 100 (Notable)
31 July 1971	Lynnville 4 SSW, US	daily low max (Tie)	26.1 C (79.0 F)	tie	60 years	6 of 100 (Routine)
30 July 1971	Lynnville 4 SSW, US	daily low max	25.6 C (78.1 F)	1.6 C (2.9 F)	34 years	23 of 100 (Routine)
25 July 1971	Lynnville 4 SSW, US	daily low max	23.9 C (75.0 F)	1.1 C (2.0 F)	60 years	29 of 100 (Routine)
19 July 1971	Lynnville 4 SSW, US	daily high min (Tie)	23.9 C (75.0 F)	tie	68 years	7 of 100 (Routine)
15 July 1971	Lynnville 4 SSW, US	daily rain	43.7 mm (1.7 in)	11.7 mm (0.5 in)	53 years	31 of 100 (Routine)
26 June 1971	Lynnville 4 SSW, US	daily high min	23.3 C (73.9 F)	0.5 C (0.9 F)	44 years	22 of 100 (Routine)
30 May 1971	Lynnville 4 SSW, US	daily low min	4.4 C (39.9 F)	1.7 C (3.1 F)	24 years	18 of 100 (Routine)
29 May 1971	Lynnville 4 SSW, US	daily low min	5.6 C (42.1 F)	1.1 C (2.0 F)	9 years	12 of 100 (Routine)
6 May 1971	Lynnville 4 SSW, US	daily high min	20.0 C (68.0 F)	0.6 C (1.1 F)	65 years	28 of 100 (Routine)
4 May 1971	Lynnville 4 SSW, US	daily low min	-2.2 C (28.0 F)	1.6 C (2.9 F)	0 years	11 of 100 (Routine)
1 May 1971	Lynnville 4 SSW, US	daily low min (Tie)	0.0 C (32.0 F)	tie	8 years	2 of 100 (Routine)
19 April 1971	Lynnville 4 SSW, US	daily high max	30.0 C (86.0 F)	0.6 C (1.1 F)	13 years	13 of 100 (Routine)
8 April 1971	Lynnville 4 SSW, US	daily low min (Tie)	-3.3 C (26.1 F)	tie	12 years	2 of 100 (Routine)

Climate Trend

63 complete years, 1898 to 1971

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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).