Larimore 4SW Weather Records (USC00325013)

Record envelope, standing records and threshold days for Larimore 4SW (USC00325013), North Dakota, United States, with 114 years of record.

Key Facts for Larimore 4SW

Larimore 4SW (USC00325013) is a weather station in North Dakota, United States at 47.87 latitude and -97.71 longitude, 351 m (1,152 ft) above sea level.
The station reports from 1893 to 2006, 114 years of record.
1,464 records set at Larimore 4SW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Larimore 4SW set a daily record snowfall of 4.3 cm (1.7 in) on 31 October 2006.

About the Station

Location: North Dakota, United States, 47.87 latitude, -97.71 longitude.
Elevation: 351 m (1,152 ft).
Period of record: 1893 to 2006, 114 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 Larimore 4SW. 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 Larimore 4SW, 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	19.4 C (66.9 F)	-40.6 C (-41.1 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-35.6 C (-32.1 F)	n/a	n/a
Apr	37.8 C (100.0 F)	-23.3 C (-9.9 F)	n/a	n/a
May	41.7 C (107.1 F)	-19.4 C (-2.9 F)	n/a	n/a
Jun	40.6 C (105.1 F)	-4.4 C (24.1 F)	n/a	n/a
Jul	43.9 C (111.0 F)	1.1 C (34.0 F)	n/a	n/a
Aug	40.0 C (104.0 F)	-1.1 C (30.0 F)	n/a	n/a
Sep	42.8 C (109.0 F)	-7.8 C (18.0 F)	n/a	n/a
Oct	33.3 C (91.9 F)	-21.1 C (-6.0 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-32.8 C (-27.0 F)	n/a	n/a
Dec	17.2 C (63.0 F)	-37.8 C (-36.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Larimore 4SW still stand. 1936 holds the most, with 49.

Standing records at Larimore 4SW by the year they were set
Year set	Standing records
1893	18
1894	11
1895	24
1896	6
1897	31
1898	13
1899	36
1900	19
1901	23
1902	15
1903	22
1904	21
1905	15
1906	10
1907	13
1908	11
1909	6
1910	15
1911	14
1912	13
1913	21
1914	17
1915	11
1916	21
1917	32
1918	18
1919	25
1920	3
1921	10
1922	13
1923	13
1924	18
1925	13
1926	16
1927	13
1928	17
1929	15
1930	12
1931	20
1932	13
1933	14
1934	22
1935	14
1936	49
1937	10
1938	12
1939	26
1940	9
1941	16
1942	21
1943	9
1944	1
1945	18
1946	7
1947	18
1948	15
1949	5
1950	12
1951	7
1952	17
1953	17
1954	10
1955	11
1956	9
1957	1
1958	14
1959	11
1960	5
1961	8
1962	7
1963	21
1964	14
1965	7
1966	9
1967	8
1968	15
1969	7
1970	2
1971	2
1972	11
1973	8
1974	6
1975	7
1976	10
1977	13
1978	10
1979	15
1980	12
1981	10
1986	8
1987	13
1988	11
1989	16
1990	17
1991	22
1992	21
1993	8
1994	5
1995	8
1996	16
1997	4
1998	6
1999	10
2000	16
2001	5
2002	13
2003	11
2004	10
2005	1
2006	4

All-Time Record Progression

2 new records

2 all-time records were set at Larimore 4SW between 10 July 1936 and 2 September 1957. Each dot is a new record.

When Larimore 4SW set new all-time records
Date	Kind	Detail
1936-07-10	Record high maximum temperature	Record high maximum temperature 43.9 C (111.0 F)
1957-09-02	Record daily precipitation	Record daily precipitation 188.2 mm (7.4 in)

Wettest Day of Each Month

Sep: 188.2 mm (7.4 in)

The wettest day on record for each calendar month at Larimore 4SW. The most was 188.2 mm (7.4 in) on 2 September 1957.

Record daily precipitation for each month at Larimore 4SW
Month	Record daily precipitation (mm)	Date
Jan	22.4 mm (0.9 in)	25 January 1950
Feb	28.4 mm (1.1 in)	26 February 2000
Mar	50.3 mm (2.0 in)	26 March 2004
Apr	51.6 mm (2.0 in)	27 April 1901
May	69.1 mm (2.7 in)	16 May 1915
Jun	164.6 mm (6.5 in)	13 June 2000
Jul	153.2 mm (6.0 in)	3 July 1921
Aug	102.9 mm (4.1 in)	26 August 1921
Sep	188.2 mm (7.4 in)	2 September 1957
Oct	55.1 mm (2.2 in)	10 October 1949
Nov	43.7 mm (1.7 in)	14 November 1944
Dec	25.9 mm (1.0 in)	31 December 2004

Period of Record Coverage

1893 to 2006

110 years of record at Larimore 4SW, 1893 to 2006. 23 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1895, 1896, 1906, 1907, 1908, 1909 and others.

Days with data per year at Larimore 4SW
Year	Days with data	Share of year	Complete
1893	204	56%	No
1894	187	51%	No
1895	271	74%	No
1896	126	34%	No
1897	357	98%	Yes
1898	363	99%	Yes
1899	365	100%	Yes
1900	357	98%	Yes
1901	362	99%	Yes
1902	363	99%	Yes
1903	361	99%	Yes
1904	358	98%	Yes
1905	360	99%	Yes
1906	300	82%	No
1907	181	50%	No
1908	182	50%	No
1909	160	44%	No
1910	336	92%	Yes
1911	318	87%	No
1912	334	91%	Yes
1913	330	90%	Yes
1914	363	99%	Yes
1915	362	99%	Yes
1916	361	99%	Yes
1917	360	99%	Yes
1918	355	97%	Yes
1919	362	99%	Yes
1920	364	99%	Yes
1921	364	100%	Yes
1922	360	99%	Yes
1923	360	99%	Yes
1924	361	99%	Yes
1925	356	98%	Yes
1926	359	98%	Yes
1927	353	97%	Yes
1928	358	98%	Yes
1929	356	98%	Yes
1930	327	90%	No
1931	361	99%	Yes
1932	360	98%	Yes
1933	362	99%	Yes
1934	365	100%	Yes
1935	363	99%	Yes
1936	365	100%	Yes
1937	364	100%	Yes
1938	361	99%	Yes
1939	363	99%	Yes
1940	366	100%	Yes
1941	364	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	310	85%	No
1945	317	87%	No
1946	358	98%	Yes
1947	363	99%	Yes
1948	355	97%	Yes
1949	329	90%	Yes
1950	244	67%	No
1951	333	91%	Yes
1952	357	98%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	348	95%	Yes
1956	365	100%	Yes
1957	357	98%	Yes
1958	364	100%	Yes
1959	365	100%	Yes
1960	364	99%	Yes
1961	364	100%	Yes
1962	365	100%	Yes
1963	364	100%	Yes
1964	365	100%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	364	99%	Yes
1969	353	97%	Yes
1970	332	91%	Yes
1971	319	87%	No
1972	357	98%	Yes
1973	302	83%	No
1974	323	88%	No
1975	315	86%	No
1976	293	80%	No
1977	335	92%	Yes
1978	291	80%	No
1979	323	88%	No
1980	334	91%	Yes
1981	360	99%	Yes
1986	61	17%	No
1987	356	98%	Yes
1988	363	99%	Yes
1989	358	98%	Yes
1990	361	99%	Yes
1991	363	99%	Yes
1992	352	96%	Yes
1993	344	94%	Yes
1994	363	99%	Yes
1995	356	98%	Yes
1996	361	99%	Yes
1997	357	98%	Yes
1998	358	98%	Yes
1999	362	99%	Yes
2000	362	99%	Yes
2001	361	99%	Yes
2002	357	98%	Yes
2003	357	98%	Yes
2004	353	96%	Yes
2005	31	8%	No
2006	297	81%	No

Latest Records

Latest records at Larimore 4SW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 2006	Larimore 4SW, US	daily snowfall	4.3 cm (1.7 in)	0.5 cm (0.2 in)	71 years	20 of 100 (Routine)
12 October 2006	Larimore 4SW, US	daily snowfall	0.8 cm (0.3 in)	0.8 cm (0.3 in)	112 years	20 of 100 (Routine)
12 October 2006	Larimore 4SW, US	daily low max	0.0 C (32.0 F)	0.6 C (1.1 F)	47 years	24 of 100 (Routine)
9 July 2006	Larimore 4SW, US	daily high max	37.2 C (99.0 F)	0.5 C (0.9 F)	69 years	31 of 100 (Routine)
24 May 2006	Larimore 4SW, US	daily high min (Tie)	15.6 C (60.1 F)	tie	77 years	8 of 100 (Routine)
2 March 2006	Larimore 4SW, US	daily rain	7.4 mm (0.29 in)	2.3 mm (0.09 in)	101 years	20 of 100 (Routine)
28 January 2006	Larimore 4SW, US	daily high min	-5.0 C (23.0 F)	0.6 C (1.1 F)	100 years	40 of 100 (Notable)
4 January 2006	Larimore 4SW, US	daily high min	-3.3 C (26.1 F)	1.1 C (2.0 F)	79 years	34 of 100 (Routine)
27 December 2005	Larimore 4SW, US	daily high min	-2.8 C (27.0 F)	0.5 C (0.9 F)	46 years	23 of 100 (Routine)
31 December 2004	Larimore 4SW, US	monthly rain	25.9 mm (1.0 in)	2.5 mm (0.10 in)	9 years	29 of 100 (Routine)
31 December 2004	Larimore 4SW, US	daily snowfall	20.3 cm (8.0 in)	5.6 cm (2.2 in)	2 years	25 of 100 (Routine)
9 December 2004	Larimore 4SW, US	daily rain	10.7 mm (0.4 in)	5.6 mm (0.22 in)	75 years	20 of 100 (Routine)
15 October 2004	Larimore 4SW, US	daily low max	0.6 C (33.1 F)	1.6 C (2.9 F)	106 years	42 of 100 (Notable)
10 August 2004	Larimore 4SW, US	daily low max	15.6 C (60.1 F)	1.6 C (2.9 F)	103 years	43 of 100 (Notable)
9 August 2004	Larimore 4SW, US	daily low max	14.4 C (57.9 F)	2.3 C (4.1 F)	101 years	44 of 100 (Notable)
6 August 2004	Larimore 4SW, US	daily rain	33.8 mm (1.3 in)	0.8 mm (0.03 in)	85 years	35 of 100 (Notable)
7 July 2004	Larimore 4SW, US	monthly low max	11.1 C (52.0 F)	1.7 C (3.1 F)	12 years	26 of 100 (Routine)
6 July 2004	Larimore 4SW, US	daily low max	14.4 C (57.9 F)	2.3 C (4.1 F)	82 years	39 of 100 (Notable)
22 June 2004	Larimore 4SW, US	daily low max	11.7 C (53.1 F)	2.2 C (4.0 F)	88 years	40 of 100 (Notable)
14 May 2004	Larimore 4SW, US	daily low max (Tie)	3.3 C (37.9 F)	tie	97 years	9 of 100 (Routine)

Climate Trend

78 complete years, 1897 to 2004

One stripe for each of 78 complete years at Larimore 4SW, 1897 to 2004. Blue stripes are years cooler than the station's own mean of 4.0 C (39.2 F); red stripes are warmer. The coolest year was 1917, at 1.6 C (34.9 F), and the warmest was 1987, at 6.3 C (43.4 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at Larimore 4SW as warming stripes, 1897 to 2004
Year	Annual mean temperature	Difference from the station mean
1897	2.1 C	-1.89 C
1898	2.9 C	-1.08 C
1899	2.0 C	-1.97 C
1900	4.0 C	+0.00 C
1901	2.9 C	-1.11 C
1902	3.2 C	-0.81 C
1903	2.6 C	-1.40 C
1904	2.5 C	-1.54 C
1905	3.5 C	-0.53 C
1913	4.0 C	-0.05 C
1914	3.8 C	-0.17 C
1915	3.9 C	-0.16 C
1916	2.0 C	-2.05 C
1917	1.6 C	-2.41 C
1918	4.0 C	-0.02 C
1919	3.1 C	-0.94 C
1920	3.8 C	-0.24 C
1921	4.7 C	+0.68 C
1922	4.0 C	-0.03 C
1923	4.3 C	+0.28 C
1924	2.9 C	-1.08 C
1925	4.0 C	-0.03 C
1926	3.8 C	-0.20 C
1927	3.2 C	-0.78 C
1928	4.6 C	+0.61 C
1929	2.5 C	-1.47 C
1931	6.3 C	+2.33 C
1932	3.9 C	-0.14 C
1933	4.5 C	+0.51 C
1934	5.5 C	+1.50 C
1935	3.4 C	-0.57 C
1936	3.1 C	-0.88 C
1937	3.2 C	-0.81 C
1938	5.4 C	+1.38 C
1939	5.5 C	+1.46 C
1940	4.6 C	+0.58 C
1941	5.4 C	+1.38 C
1942	4.8 C	+0.75 C
1943	4.3 C	+0.26 C
1946	3.9 C	-0.10 C
1947	4.2 C	+0.19 C
1948	3.8 C	-0.23 C
1952	5.5 C	+1.48 C
1953	5.9 C	+1.84 C
1954	5.1 C	+1.04 C
1955	4.0 C	-0.05 C
1956	3.8 C	-0.21 C
1957	5.0 C	+0.95 C
1958	5.2 C	+1.18 C
1959	4.3 C	+0.25 C
1960	4.4 C	+0.41 C
1961	5.0 C	+0.95 C
1962	4.0 C	-0.01 C
1963	5.9 C	+1.89 C
1964	4.5 C	+0.49 C
1965	3.3 C	-0.70 C
1966	3.1 C	-0.93 C
1967	3.8 C	-0.25 C
1968	4.2 C	+0.19 C
1969	3.9 C	-0.10 C
1972	2.9 C	-1.16 C
1987	6.3 C	+2.33 C
1988	4.5 C	+0.50 C
1989	2.8 C	-1.19 C
1990	4.8 C	+0.76 C
1991	4.6 C	+0.59 C
1992	3.8 C	-0.18 C
1993	2.7 C	-1.27 C
1994	3.7 C	-0.28 C
1995	3.5 C	-0.51 C
1996	1.8 C	-2.22 C
1997	4.0 C	-0.01 C
1998	5.9 C	+1.84 C
1999	5.4 C	+1.37 C
2000	4.5 C	+0.53 C
2001	5.0 C	+0.99 C
2002	4.4 C	+0.41 C
2004	3.6 C	-0.42 C

The annual mean temperature here has risen by 0.11 C (0.03 to 0.18) per decade over 1897 to 2004. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 78 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Larimore 4SW
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.11 C (0.03 to 0.18) per decade	0.2 F (0.1 to 0.3) per decade	1897 to 2004	78	Rise
Mean daily maximum	0.04 C (-0.05 to 0.12) per decade	0.1 F (-0.1 to 0.2) per decade	1897 to 2004	78	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.3 F (0.2 to 0.5) per decade	1897 to 2004	78	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 2006

Yearly extremes at Larimore 4SW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.9 C (111.0 F)	1936	35.6 C (96.1 F)	110
Coldest night (TNn)	-41.1 C (-42.0 F)	1912	-34.4 C (-29.9 F)	110
Wettest day (Rx1day)	188.2 mm (7.4 in)	1957	48.3 mm (1.9 in)	110
Wettest five days (Rx5day)	282.5 mm (11.1 in)	1957	64.5 mm (2.5 in)	109
Longest dry spell (CDD)	78 days	1999	31 days	110

Hottest day (TXx)

The hottest day of the year at Larimore 4SW, 1893 to 2006. The record is 43.9 C (111.0 F) in 1936, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at Larimore 4SW by year
Year	Hottest day (TXx)
1893	37.8 C (100.0 F)
1894	28.9 C (84.0 F)
1895	38.3 C (100.9 F)
1896	39.4 C (102.9 F)
1897	35.6 C (96.1 F)
1898	33.3 C (91.9 F)
1899	35.6 C (96.1 F)
1900	40.6 C (105.1 F)
1901	35.6 C (96.1 F)
1902	35.0 C (95.0 F)
1903	35.6 C (96.1 F)
1904	34.4 C (93.9 F)
1905	35.0 C (95.0 F)
1906	42.8 C (109.0 F)
1907	32.8 C (91.0 F)
1908	36.7 C (98.1 F)
1909	35.6 C (96.1 F)
1910	37.8 C (100.0 F)
1911	35.6 C (96.1 F)
1912	36.7 C (98.1 F)
1913	37.2 C (99.0 F)
1914	35.0 C (95.0 F)
1915	32.8 C (91.0 F)
1916	33.9 C (93.0 F)
1917	40.6 C (105.1 F)
1918	35.6 C (96.1 F)
1919	36.1 C (97.0 F)
1920	38.3 C (100.9 F)
1921	35.0 C (95.0 F)
1922	35.6 C (96.1 F)
1923	35.0 C (95.0 F)
1924	32.8 C (91.0 F)
1925	40.0 C (104.0 F)
1926	38.3 C (100.9 F)
1927	34.4 C (93.9 F)
1928	36.1 C (97.0 F)
1929	38.3 C (100.9 F)
1930	38.3 C (100.9 F)
1931	41.1 C (106.0 F)
1932	38.3 C (100.9 F)
1933	40.0 C (104.0 F)
1934	41.7 C (107.1 F)
1935	35.6 C (96.1 F)
1936	43.9 C (111.0 F)
1937	37.2 C (99.0 F)
1938	35.0 C (95.0 F)
1939	38.3 C (100.9 F)
1940	37.2 C (99.0 F)
1941	39.4 C (102.9 F)
1942	35.0 C (95.0 F)
1943	35.0 C (95.0 F)
1944	35.6 C (96.1 F)
1945	37.8 C (100.0 F)
1946	37.8 C (100.0 F)
1947	38.9 C (102.0 F)
1948	35.0 C (95.0 F)
1949	38.3 C (100.9 F)
1950	33.3 C (91.9 F)
1951	37.2 C (99.0 F)
1952	37.2 C (99.0 F)
1953	37.8 C (100.0 F)
1954	35.0 C (95.0 F)
1955	37.2 C (99.0 F)
1956	34.4 C (93.9 F)
1957	37.8 C (100.0 F)
1958	38.9 C (102.0 F)
1959	37.2 C (99.0 F)
1960	36.1 C (97.0 F)
1961	37.2 C (99.0 F)
1962	35.0 C (95.0 F)
1963	35.6 C (96.1 F)
1964	37.8 C (100.0 F)
1965	37.2 C (99.0 F)
1966	33.3 C (91.9 F)
1967	35.0 C (95.0 F)
1968	35.0 C (95.0 F)
1969	35.0 C (95.0 F)
1970	34.4 C (93.9 F)
1971	35.6 C (96.1 F)
1972	35.6 C (96.1 F)
1973	35.0 C (95.0 F)
1974	35.6 C (96.1 F)
1975	37.8 C (100.0 F)
1976	37.2 C (99.0 F)
1977	35.0 C (95.0 F)
1978	38.9 C (102.0 F)
1979	35.0 C (95.0 F)
1980	37.8 C (100.0 F)
1981	35.0 C (95.0 F)
1986	10.6 C (51.1 F)
1987	34.4 C (93.9 F)
1988	39.4 C (102.9 F)
1989	37.8 C (100.0 F)
1990	34.4 C (93.9 F)
1991	36.1 C (97.0 F)
1992	33.3 C (91.9 F)
1993	32.8 C (91.0 F)
1994	32.2 C (90.0 F)
1995	36.7 C (98.1 F)
1996	35.6 C (96.1 F)
1997	32.8 C (91.0 F)
1998	35.0 C (95.0 F)
1999	36.1 C (97.0 F)
2000	36.7 C (98.1 F)
2001	35.6 C (96.1 F)
2002	36.7 C (98.1 F)
2003	35.6 C (96.1 F)
2004	32.2 C (90.0 F)
2005	5.0 C (41.0 F)
2006	37.2 C (99.0 F)

Coldest night (TNn)

The coldest night of the year at Larimore 4SW, 1893 to 2006. The record is -41.1 C (-42.0 F) in 1912, marked on the chart; the median year is -34.4 C (-29.9 F).

Coldest night (TNn) at Larimore 4SW by year
Year	Coldest night (TNn)
1893	-34.4 C (-29.9 F)
1894	-37.8 C (-36.0 F)
1895	-40.0 C (-40.0 F)
1896	-31.7 C (-25.1 F)
1897	-35.0 C (-31.0 F)
1898	-32.2 C (-26.0 F)
1899	-40.0 C (-40.0 F)
1900	-35.0 C (-31.0 F)
1901	-37.2 C (-35.0 F)
1902	-36.7 C (-34.1 F)
1903	-37.8 C (-36.0 F)
1904	-38.9 C (-38.0 F)
1905	-35.0 C (-31.0 F)
1906	-34.4 C (-29.9 F)
1907	-14.4 C (6.1 F)
1908	-17.2 C (1.0 F)
1909	-13.3 C (8.1 F)
1910	-32.2 C (-26.0 F)
1911	-34.4 C (-29.9 F)
1912	-41.1 C (-42.0 F)
1913	-36.1 C (-33.0 F)
1914	-38.3 C (-36.9 F)
1915	-38.3 C (-36.9 F)
1916	-39.4 C (-38.9 F)
1917	-38.9 C (-38.0 F)
1918	-37.2 C (-35.0 F)
1919	-37.8 C (-36.0 F)
1920	-34.4 C (-29.9 F)
1921	-31.7 C (-25.1 F)
1922	-37.8 C (-36.0 F)
1923	-37.2 C (-35.0 F)
1924	-37.2 C (-35.0 F)
1925	-35.6 C (-32.1 F)
1926	-32.2 C (-26.0 F)
1927	-32.8 C (-27.0 F)
1928	-30.6 C (-23.1 F)
1929	-36.1 C (-33.0 F)
1930	-37.8 C (-36.0 F)
1931	-28.3 C (-18.9 F)
1932	-32.2 C (-26.0 F)
1933	-36.1 C (-33.0 F)
1934	-35.0 C (-31.0 F)
1935	-35.0 C (-31.0 F)
1936	-40.6 C (-41.1 F)
1937	-36.7 C (-34.1 F)
1938	-33.3 C (-27.9 F)
1939	-37.2 C (-35.0 F)
1940	-31.1 C (-24.0 F)
1941	-33.9 C (-29.0 F)
1942	-31.7 C (-25.1 F)
1943	-36.7 C (-34.1 F)
1944	-31.1 C (-24.0 F)
1945	-33.9 C (-29.0 F)
1946	-33.3 C (-27.9 F)
1947	-30.0 C (-22.0 F)
1948	-36.7 C (-34.1 F)
1949	-32.8 C (-27.0 F)
1950	-36.1 C (-33.0 F)
1951	-36.7 C (-34.1 F)
1952	-32.8 C (-27.0 F)
1953	-28.9 C (-20.0 F)
1954	-35.6 C (-32.1 F)
1955	-35.0 C (-31.0 F)
1956	-34.4 C (-29.9 F)
1957	-33.9 C (-29.0 F)
1958	-33.3 C (-27.9 F)
1959	-33.3 C (-27.9 F)
1960	-31.7 C (-25.1 F)
1961	-34.4 C (-29.9 F)
1962	-35.0 C (-31.0 F)
1963	-35.0 C (-31.0 F)
1964	-32.2 C (-26.0 F)
1965	-35.0 C (-31.0 F)
1966	-37.8 C (-36.0 F)
1967	-37.8 C (-36.0 F)
1968	-38.3 C (-36.9 F)
1969	-32.8 C (-27.0 F)
1970	-35.0 C (-31.0 F)
1971	-30.0 C (-22.0 F)
1972	-36.1 C (-33.0 F)
1973	-31.7 C (-25.1 F)
1974	-33.3 C (-27.9 F)
1975	-28.9 C (-20.0 F)
1976	-27.8 C (-18.0 F)
1977	-34.4 C (-29.9 F)
1978	-30.0 C (-22.0 F)
1979	-33.3 C (-27.9 F)
1980	-31.1 C (-24.0 F)
1981	-28.9 C (-20.0 F)
1986	-27.2 C (-17.0 F)
1987	-31.7 C (-25.1 F)
1988	-33.9 C (-29.0 F)
1989	-37.2 C (-35.0 F)
1990	-35.0 C (-31.0 F)
1991	-32.8 C (-27.0 F)
1992	-32.2 C (-26.0 F)
1993	-37.8 C (-36.0 F)
1994	-37.2 C (-35.0 F)
1995	-28.9 C (-20.0 F)
1996	-39.4 C (-38.9 F)
1997	-33.9 C (-29.0 F)
1998	-28.9 C (-20.0 F)
1999	-32.2 C (-26.0 F)
2000	-30.0 C (-22.0 F)
2001	-30.6 C (-23.1 F)
2002	-25.0 C (-13.0 F)
2003	-31.7 C (-25.1 F)
2004	-37.8 C (-36.0 F)
2005	-23.3 C (-9.9 F)
2006	-32.2 C (-26.0 F)

Wettest day (Rx1day)

The wettest day of the year at Larimore 4SW, 1893 to 2006. The record is 188.2 mm (7.4 in) in 1957, marked on the chart; the median year is 48.3 mm (1.9 in).

Wettest day (Rx1day) at Larimore 4SW by year
Year	Wettest day (Rx1day)
1893	45.0 mm (1.8 in)
1894	50.8 mm (2.0 in)
1895	48.3 mm (1.9 in)
1896	63.0 mm (2.5 in)
1897	52.1 mm (2.1 in)
1898	26.2 mm (1.0 in)
1899	55.9 mm (2.2 in)
1900	57.9 mm (2.3 in)
1901	51.6 mm (2.0 in)
1902	83.8 mm (3.3 in)
1903	38.4 mm (1.5 in)
1904	58.9 mm (2.3 in)
1905	51.3 mm (2.0 in)
1906	38.9 mm (1.5 in)
1907	43.7 mm (1.7 in)
1908	49.5 mm (1.9 in)
1909	37.6 mm (1.5 in)
1910	48.3 mm (1.9 in)
1911	53.3 mm (2.1 in)
1912	67.3 mm (2.6 in)
1913	33.5 mm (1.3 in)
1914	76.2 mm (3.0 in)
1915	69.1 mm (2.7 in)
1916	72.4 mm (2.9 in)
1917	27.9 mm (1.1 in)
1918	51.3 mm (2.0 in)
1919	54.6 mm (2.1 in)
1920	66.0 mm (2.6 in)
1921	153.2 mm (6.0 in)
1922	106.7 mm (4.2 in)
1923	101.6 mm (4.0 in)
1924	82.6 mm (3.3 in)
1925	55.9 mm (2.2 in)
1926	53.3 mm (2.1 in)
1927	50.8 mm (2.0 in)
1928	50.8 mm (2.0 in)
1929	33.0 mm (1.3 in)
1930	45.7 mm (1.8 in)
1931	40.6 mm (1.6 in)
1932	50.8 mm (2.0 in)
1933	38.6 mm (1.5 in)
1934	52.8 mm (2.1 in)
1935	41.4 mm (1.6 in)
1936	36.3 mm (1.4 in)
1937	41.1 mm (1.6 in)
1938	47.0 mm (1.9 in)
1939	20.1 mm (0.8 in)
1940	76.2 mm (3.0 in)
1941	39.4 mm (1.6 in)
1942	42.2 mm (1.7 in)
1943	31.8 mm (1.3 in)
1944	50.0 mm (2.0 in)
1945	25.9 mm (1.0 in)
1946	96.8 mm (3.8 in)
1947	31.5 mm (1.2 in)
1948	36.1 mm (1.4 in)
1949	55.1 mm (2.2 in)
1950	72.9 mm (2.9 in)
1951	50.3 mm (2.0 in)
1952	37.3 mm (1.5 in)
1953	44.5 mm (1.8 in)
1954	33.3 mm (1.3 in)
1955	38.1 mm (1.5 in)
1956	43.2 mm (1.7 in)
1957	188.2 mm (7.4 in)
1958	32.3 mm (1.3 in)
1959	45.7 mm (1.8 in)
1960	38.6 mm (1.5 in)
1961	36.1 mm (1.4 in)
1962	38.1 mm (1.5 in)
1963	49.5 mm (1.9 in)
1964	50.0 mm (2.0 in)
1965	37.3 mm (1.5 in)
1966	45.2 mm (1.8 in)
1967	56.4 mm (2.2 in)
1968	34.0 mm (1.3 in)
1969	33.5 mm (1.3 in)
1970	49.8 mm (2.0 in)
1971	48.3 mm (1.9 in)
1972	30.0 mm (1.2 in)
1973	40.6 mm (1.6 in)
1974	64.0 mm (2.5 in)
1975	35.6 mm (1.4 in)
1976	25.4 mm (1.0 in)
1977	50.8 mm (2.0 in)
1978	47.8 mm (1.9 in)
1979	45.7 mm (1.8 in)
1980	38.1 mm (1.5 in)
1981	77.0 mm (3.0 in)
1986	23.9 mm (0.9 in)
1987	54.4 mm (2.1 in)
1988	38.9 mm (1.5 in)
1989	49.3 mm (1.9 in)
1990	31.8 mm (1.3 in)
1991	63.8 mm (2.5 in)
1992	46.5 mm (1.8 in)
1993	49.3 mm (1.9 in)
1994	82.6 mm (3.3 in)
1995	42.7 mm (1.7 in)
1996	49.5 mm (1.9 in)
1997	57.2 mm (2.3 in)
1998	53.3 mm (2.1 in)
1999	42.2 mm (1.7 in)
2000	164.6 mm (6.5 in)
2001	32.3 mm (1.3 in)
2002	95.0 mm (3.7 in)
2003	50.8 mm (2.0 in)
2004	55.1 mm (2.2 in)
2005	7.4 mm (0.29 in)
2006	25.9 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Larimore 4SW, 1893 to 2006. The record is 282.5 mm (11.1 in) in 1957, marked on the chart; the median year is 64.5 mm (2.5 in).

Wettest five days (Rx5day) at Larimore 4SW by year
Year	Wettest five days (Rx5day)
1893	51.4 mm (2.0 in)
1894	50.8 mm (2.0 in)
1895	59.9 mm (2.4 in)
1896	80.5 mm (3.2 in)
1897	65.6 mm (2.6 in)
1898	35.9 mm (1.4 in)
1899	61.0 mm (2.4 in)
1900	94.6 mm (3.7 in)
1901	67.5 mm (2.7 in)
1902	93.5 mm (3.7 in)
1903	50.3 mm (2.0 in)
1904	80.4 mm (3.2 in)
1905	58.7 mm (2.3 in)
1906	50.8 mm (2.0 in)
1907	60.7 mm (2.4 in)
1908	74.4 mm (2.9 in)
1909	52.3 mm (2.1 in)
1910	85.6 mm (3.4 in)
1911	121.5 mm (4.8 in)
1912	43.2 mm (1.7 in)
1913	61.2 mm (2.4 in)
1914	77.2 mm (3.0 in)
1915	72.9 mm (2.9 in)
1916	73.7 mm (2.9 in)
1917	42.1 mm (1.7 in)
1918	59.2 mm (2.3 in)
1919	61.6 mm (2.4 in)
1920	128.5 mm (5.1 in)
1921	160.1 mm (6.3 in)
1922	64.5 mm (2.5 in)
1923	n/a
1924	71.0 mm (2.8 in)
1925	49.6 mm (2.0 in)
1926	64.0 mm (2.5 in)
1927	79.2 mm (3.1 in)
1928	102.8 mm (4.0 in)
1929	45.8 mm (1.8 in)
1930	85.2 mm (3.4 in)
1931	49.9 mm (2.0 in)
1932	55.6 mm (2.2 in)
1933	59.4 mm (2.3 in)
1934	81.8 mm (3.2 in)
1935	77.8 mm (3.1 in)
1936	38.1 mm (1.5 in)
1937	56.9 mm (2.2 in)
1938	57.7 mm (2.3 in)
1939	30.7 mm (1.2 in)
1940	149.9 mm (5.9 in)
1941	77.5 mm (3.1 in)
1942	68.1 mm (2.7 in)
1943	52.6 mm (2.1 in)
1944	78.0 mm (3.1 in)
1945	38.6 mm (1.5 in)
1946	135.7 mm (5.3 in)
1947	51.3 mm (2.0 in)
1948	60.0 mm (2.4 in)
1949	66.3 mm (2.6 in)
1950	100.6 mm (4.0 in)
1951	89.9 mm (3.5 in)
1952	56.2 mm (2.2 in)
1953	77.0 mm (3.0 in)
1954	62.3 mm (2.5 in)
1955	60.9 mm (2.4 in)
1956	83.5 mm (3.3 in)
1957	282.5 mm (11.1 in)
1958	89.4 mm (3.5 in)
1959	65.3 mm (2.6 in)
1960	60.5 mm (2.4 in)
1961	47.5 mm (1.9 in)
1962	60.8 mm (2.4 in)
1963	54.8 mm (2.2 in)
1964	87.3 mm (3.4 in)
1965	52.5 mm (2.1 in)
1966	108.7 mm (4.3 in)
1967	59.2 mm (2.3 in)
1968	73.4 mm (2.9 in)
1969	50.7 mm (2.0 in)
1970	50.8 mm (2.0 in)
1971	66.1 mm (2.6 in)
1972	52.5 mm (2.1 in)
1973	99.8 mm (3.9 in)
1974	89.4 mm (3.5 in)
1975	99.1 mm (3.9 in)
1976	55.9 mm (2.2 in)
1977	86.4 mm (3.4 in)
1978	58.4 mm (2.3 in)
1979	53.3 mm (2.1 in)
1980	51.8 mm (2.0 in)
1981	77.0 mm (3.0 in)
1986	33.6 mm (1.3 in)
1987	128.1 mm (5.0 in)
1988	52.6 mm (2.1 in)
1989	53.6 mm (2.1 in)
1990	42.4 mm (1.7 in)
1991	100.4 mm (4.0 in)
1992	46.5 mm (1.8 in)
1993	95.5 mm (3.8 in)
1994	103.4 mm (4.1 in)
1995	40.6 mm (1.6 in)
1996	66.0 mm (2.6 in)
1997	72.2 mm (2.8 in)
1998	75.0 mm (3.0 in)
1999	72.4 mm (2.9 in)
2000	228.9 mm (9.0 in)
2001	76.2 mm (3.0 in)
2002	110.2 mm (4.3 in)
2003	58.9 mm (2.3 in)
2004	72.9 mm (2.9 in)
2005	8.9 mm (0.35 in)
2006	37.1 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Larimore 4SW, 1893 to 2006. The record is 78 days in 1999, marked on the chart; the median year is 31 days.

Longest dry spell (CDD) at Larimore 4SW by year
Year	Longest dry spell (CDD)
1893	19 days
1894	27 days
1895	28 days
1896	23 days
1897	52 days
1898	44 days
1899	68 days
1900	31 days
1901	37 days
1902	25 days
1903	44 days
1904	63 days
1905	37 days
1906	24 days
1907	15 days
1908	26 days
1909	12 days
1910	41 days
1911	25 days
1912	35 days
1913	38 days
1914	23 days
1915	49 days
1916	19 days
1917	33 days
1918	31 days
1919	20 days
1920	34 days
1921	18 days
1922	23 days
1923	1 day
1924	17 days
1925	18 days
1926	14 days
1927	19 days
1928	20 days
1929	10 days
1930	18 days
1931	12 days
1932	21 days
1933	25 days
1934	40 days
1935	46 days
1936	32 days
1937	39 days
1938	26 days
1939	28 days
1940	26 days
1941	26 days
1942	32 days
1943	35 days
1944	35 days
1945	19 days
1946	36 days
1947	22 days
1948	22 days
1949	33 days
1950	26 days
1951	34 days
1952	49 days
1953	35 days
1954	37 days
1955	27 days
1956	28 days
1957	39 days
1958	24 days
1959	33 days
1960	31 days
1961	41 days
1962	20 days
1963	28 days
1964	54 days
1965	35 days
1966	28 days
1967	34 days
1968	21 days
1969	39 days
1970	28 days
1971	59 days
1972	53 days
1973	59 days
1974	29 days
1975	18 days
1976	72 days
1977	30 days
1978	52 days
1979	60 days
1980	73 days
1981	41 days
1986	21 days
1987	31 days
1988	37 days
1989	34 days
1990	46 days
1991	32 days
1992	26 days
1993	28 days
1994	35 days
1995	34 days
1996	24 days
1997	25 days
1998	29 days
1999	78 days
2000	42 days
2001	32 days
2002	30 days
2003	23 days
2004	43 days
2005	11 days
2006	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

78 years with a frost

Across 78 years with a frost, the median last spring frost at Larimore 4SW falls on 19 May and the median first autumn frost on 23 September, which leaves a median of 126 days between them.

In 1958 to 2004 the median growing season was 136 days. That is 19 days more than in 1897 to 1934.

Fitted over all years, the growing season changes by +2.9 days per decade at this station.

Frost dates and growing season at Larimore 4SW
Measure	Median, all years	Earliest period (1897 to 1934)	Recent period (1958 to 2004)	Recent against earliest	Fitted trend
Last spring frost	19 May	22 May	17 May	5 days earlier	-1.4 days per decade
First autumn frost	23 September	17 September	26 September	9 days later	+1.5 days per decade
Growing days	126 days	117 days	136 days	19 days more	+2.9 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

68 years, 1897 to 2002

A day with at least 45.1 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 148.8 mm (5.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Larimore 4SW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	45.1 mm (1.8 in)
5 years	62.1 mm (2.4 in)
10 years	76.8 mm (3.0 in)
25 years	100.3 mm (3.9 in)
50 years	122.3 mm (4.8 in)
100 years	148.8 mm (5.9 in)	Longer than the 68 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, 68 years of values from 1897 to 2002.

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: 164.6 mm (6.5 in) in 2000; 153.2 mm (6.0 in) in 1921; 96.8 mm (3.8 in) in 1946.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of Larimore 4SW, at 1933 and 1972. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1933 ran 0.2 C (0.4 F) higher than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1972 ran 0.3 C (0.5 F) lower than in the years before (possible change).

Suspected changes in the annual mean temperature at Larimore 4SW, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1933	+0.2	+0.4	possible	5
1972	-0.3	-0.5	possible	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 Larimore 4SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Larimore 4SW 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).