Inwood 2 SW Weather Records (USC00134087)

Record envelope, standing records and threshold days for Inwood 2 SW (USC00134087), Iowa, United States, with 72 years of record.

Key Facts for Inwood 2 SW

Inwood 2 SW (USC00134087) is a weather station in Iowa, United States at 43.30 latitude and -96.47 longitude, 445 m (1,460 ft) above sea level.
The station reports from 1902 to 1973, 72 years of record.
1,464 records set at Inwood 2 SW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Inwood 2 SW set a daily record high minimum temperature of -0.6 C (30.9 F) on 18 January 1973.

About the Station

Location: Iowa, United States, 43.30 latitude, -96.47 longitude.
Elevation: 445 m (1,460 ft).
Period of record: 1902 to 1973, 72 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 Inwood 2 SW. 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 Inwood 2 SW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.2 C (63.0 F)	-43.3 C (-45.9 F)	n/a	n/a
Feb	18.9 C (66.0 F)	-38.3 C (-36.9 F)	n/a	n/a
Mar	31.1 C (88.0 F)	-33.3 C (-27.9 F)	n/a	n/a
Apr	37.2 C (99.0 F)	-22.2 C (-8.0 F)	n/a	n/a
May	43.9 C (111.0 F)	-8.3 C (17.1 F)	n/a	n/a
Jun	41.1 C (106.0 F)	-0.6 C (30.9 F)	n/a	n/a
Jul	46.1 C (115.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	43.3 C (109.9 F)	0.6 C (33.1 F)	n/a	n/a
Sep	40.6 C (105.1 F)	-6.1 C (21.0 F)	n/a	n/a
Oct	34.4 C (93.9 F)	-26.1 C (-15.0 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Dec	18.3 C (64.9 F)	-39.4 C (-38.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Inwood 2 SW still stand. 1936 holds the most, with 68.

Standing records at Inwood 2 SW by the year they were set
Year set	Standing records
1904	13
1905	26
1906	21
1907	18
1908	24
1909	29
1910	29
1911	27
1912	26
1913	31
1914	18
1915	22
1916	23
1917	34
1918	30
1919	22
1920	16
1921	22
1922	16
1923	22
1924	31
1925	27
1926	22
1927	17
1928	27
1929	18
1930	27
1931	46
1932	20
1933	24
1934	40
1935	24
1936	68
1937	20
1938	17
1939	28
1940	18
1941	21
1942	24
1943	17
1944	19
1945	17
1946	25
1947	14
1948	15
1949	8
1950	20
1951	21
1952	16
1953	15
1954	17
1955	28
1956	16
1957	7
1958	21
1959	18
1960	13
1961	4
1962	28
1963	11
1964	15
1965	20
1966	13
1967	13
1968	14
1969	10
1970	24
1971	8
1972	8
1973	1

All-Time Record Progression

4 new records

4 all-time records were set at Inwood 2 SW between 30 May 1934 and 30 June 1970. Each dot is a new record.

When Inwood 2 SW set new all-time records
Date	Kind	Detail
1934-05-30	Record high maximum temperature	Record high maximum temperature 43.9 C (111.0 F)
1936-07-17	Record high maximum temperature	Record high maximum temperature 46.1 C (115.0 F)
1962-02-18	Record daily snowfall	Record daily snowfall 50.8 cm (20.0 in)
1970-06-30	Record high minimum temperature	Record high minimum temperature 27.8 C (82.0 F)

Wettest Day of Each Month

Jun: 124.2 mm (4.9 in)

The wettest day on record for each calendar month at Inwood 2 SW. The most was 124.2 mm (4.9 in) on 28 June 1905.

Record daily precipitation for each month at Inwood 2 SW
Month	Record daily precipitation (mm)	Date
Jan	19.1 mm (0.8 in)	26 January 1918
Feb	31.2 mm (1.2 in)	18 February 1962
Mar	76.2 mm (3.0 in)	18 March 1905
Apr	61.0 mm (2.4 in)	2 April 1967
May	98.0 mm (3.9 in)	1 May 1972
Jun	124.2 mm (4.9 in)	28 June 1905
Jul	70.1 mm (2.8 in)	7 July 1939
Aug	91.4 mm (3.6 in)	29 August 1942
Sep	108.2 mm (4.3 in)	9 September 1946
Oct	70.4 mm (2.8 in)	16 October 1968
Nov	41.9 mm (1.6 in)	19 November 1948
Dec	27.9 mm (1.1 in)	28 December 1959

Period of Record Coverage

1904 to 1973

70 years of record at Inwood 2 SW, 1904 to 1973. 2 years have data for under 90 percent of days and are left out of rankings: 1905, 1973.

Days with data per year at Inwood 2 SW
Year	Days with data	Share of year	Complete
1904	360	98%	Yes
1905	304	83%	No
1906	359	98%	Yes
1907	358	98%	Yes
1908	354	97%	Yes
1909	361	99%	Yes
1910	364	100%	Yes
1911	361	99%	Yes
1912	364	99%	Yes
1913	361	99%	Yes
1914	357	98%	Yes
1915	364	100%	Yes
1916	363	99%	Yes
1917	356	98%	Yes
1918	358	98%	Yes
1919	362	99%	Yes
1920	360	98%	Yes
1921	362	99%	Yes
1922	349	96%	Yes
1923	358	98%	Yes
1924	363	99%	Yes
1925	363	99%	Yes
1926	362	99%	Yes
1927	356	98%	Yes
1928	364	99%	Yes
1929	355	97%	Yes
1930	357	98%	Yes
1931	365	100%	Yes
1932	344	94%	Yes
1933	365	100%	Yes
1934	365	100%	Yes
1935	364	100%	Yes
1936	364	99%	Yes
1937	362	99%	Yes
1938	364	100%	Yes
1939	362	99%	Yes
1940	365	100%	Yes
1941	364	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	365	100%	Yes
1945	360	99%	Yes
1946	364	100%	Yes
1947	334	92%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	361	99%	Yes
1951	365	100%	Yes
1952	363	99%	Yes
1953	364	100%	Yes
1954	364	100%	Yes
1955	363	99%	Yes
1956	363	99%	Yes
1957	363	99%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	365	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	334	92%	Yes
1964	330	90%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	364	100%	Yes
1971	361	99%	Yes
1972	335	92%	Yes
1973	31	8%	No

Latest Records

Latest records at Inwood 2 SW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 January 1973	Inwood 2 SW, US	daily high min	-0.6 C (30.9 F)	0.5 C (0.9 F)	59 years	24 of 100 (Routine)
9 January 1973	Inwood 2 SW, US	daily low min (Tie)	-29.4 C (-20.9 F)	tie	55 years	5 of 100 (Routine)
2 November 1972	Inwood 2 SW, US	daily rain	28.4 mm (1.1 in)	12.9 mm (0.5 in)	15 years	28 of 100 (Routine)
25 August 1972	Inwood 2 SW, US	daily low max (Tie)	20.0 C (68.0 F)	tie	28 years	3 of 100 (Routine)
8 August 1972	Inwood 2 SW, US	daily low max	21.1 C (70.0 F)	0.6 C (1.1 F)	49 years	21 of 100 (Routine)
5 August 1972	Inwood 2 SW, US	daily low max	20.6 C (69.1 F)	3.3 C (5.9 F)	60 years	32 of 100 (Routine)
28 July 1972	Inwood 2 SW, US	daily low max	22.8 C (73.0 F)	0.5 C (0.9 F)	50 years	22 of 100 (Routine)
22 July 1972	Inwood 2 SW, US	daily high min (Tie)	22.2 C (72.0 F)	tie	38 years	4 of 100 (Routine)
5 July 1972	Inwood 2 SW, US	daily low min	6.1 C (43.0 F)	2.8 C (5.0 F)	5 years	14 of 100 (Routine)
7 June 1972	Inwood 2 SW, US	daily rain	50.8 mm (2.0 in)	7.1 mm (0.28 in)	5 years	12 of 100 (Routine)
1 May 1972	Inwood 2 SW, US	monthly rain	98.0 mm (3.9 in)	29.4 mm (1.2 in)	35 years	56 of 100 (Notable)
20 March 1972	Inwood 2 SW, US	daily high min	4.4 C (39.9 F)	0.5 C (0.9 F)	19 years	11 of 100 (Routine)
8 February 1972	Inwood 2 SW, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	32 years	3 of 100 (Routine)
26 January 1972	Inwood 2 SW, US	daily low max (Tie)	-20.6 C (-5.1 F)	tie	68 years	6 of 100 (Routine)
15 January 1972	Inwood 2 SW, US	daily low min	-35.6 C (-32.1 F)	2.3 C (4.1 F)	60 years	26 of 100 (Routine)
15 January 1972	Inwood 2 SW, US	daily low max	-20.6 C (-5.1 F)	1.2 C (2.2 F)	60 years	25 of 100 (Routine)
14 January 1972	Inwood 2 SW, US	daily low min	-32.8 C (-27.0 F)	3.9 C (7.0 F)	14 years	14 of 100 (Routine)
14 January 1972	Inwood 2 SW, US	daily low max (Tie)	-18.3 C (-0.9 F)	tie	66 years	6 of 100 (Routine)
23 December 1971	Inwood 2 SW, US	daily high min (Tie)	-0.6 C (30.9 F)	tie	48 years	5 of 100 (Routine)
17 November 1971	Inwood 2 SW, US	daily rain	19.8 mm (0.8 in)	3.8 mm (0.15 in)	40 years	20 of 100 (Routine)

Climate Trend

62 complete years, 1904 to 1971

One stripe for each of 62 complete years at Inwood 2 SW, 1904 to 1971. Blue stripes are years cooler than the station's own mean of 7.9 C (46.2 F); red stripes are warmer. The coolest year was 1917, at 5.1 C (41.2 F), and the warmest was 1931, at 10.7 C (51.3 F). The strongest colour marks a difference of 2.9 C (5.2 F).

Annual mean temperature at Inwood 2 SW as warming stripes, 1904 to 1971
Year	Annual mean temperature	Difference from the station mean
1904	6.7 C	-1.20 C
1906	7.8 C	-0.12 C
1907	7.2 C	-0.69 C
1908	8.4 C	+0.48 C
1909	7.0 C	-0.86 C
1910	8.1 C	+0.27 C
1911	8.1 C	+0.22 C
1912	7.0 C	-0.91 C
1913	8.4 C	+0.56 C
1914	8.2 C	+0.29 C
1915	7.7 C	-0.22 C
1916	6.4 C	-1.52 C
1917	5.1 C	-2.75 C
1918	7.8 C	-0.09 C
1919	7.8 C	-0.12 C
1920	7.8 C	-0.06 C
1921	9.6 C	+1.71 C
1922	8.1 C	+0.22 C
1923	8.3 C	+0.38 C
1924	6.5 C	-1.34 C
1926	8.0 C	+0.16 C
1927	7.4 C	-0.45 C
1928	8.1 C	+0.26 C
1929	6.6 C	-1.31 C
1930	8.7 C	+0.79 C
1931	10.7 C	+2.84 C
1933	8.7 C	+0.86 C
1934	9.4 C	+1.56 C
1935	8.1 C	+0.19 C
1936	7.4 C	-0.45 C
1937	7.0 C	-0.84 C
1938	9.1 C	+1.19 C
1939	9.4 C	+1.48 C
1940	7.7 C	-0.20 C
1941	9.4 C	+1.51 C
1942	8.3 C	+0.38 C
1943	7.9 C	0.00 C
1944	8.4 C	+0.55 C
1945	7.5 C	-0.36 C
1946	8.2 C	+0.30 C
1948	8.0 C	+0.11 C
1949	8.1 C	+0.21 C
1950	6.3 C	-1.61 C
1951	5.9 C	-1.98 C
1952	8.1 C	+0.21 C
1953	8.6 C	+0.76 C
1954	8.8 C	+0.89 C
1955	8.5 C	+0.59 C
1956	8.4 C	+0.53 C
1957	8.1 C	+0.27 C
1958	8.6 C	+0.72 C
1959	7.8 C	-0.04 C
1960	7.4 C	-0.51 C
1961	7.7 C	-0.15 C
1962	7.7 C	-0.16 C
1965	7.3 C	-0.60 C
1966	7.3 C	-0.61 C
1967	7.7 C	-0.20 C
1968	8.1 C	+0.22 C
1969	6.9 C	-0.98 C
1970	7.5 C	-0.33 C
1971	7.9 C	+0.06 C

The fitted trend in annual mean temperature here over 1904 to 1971 is 0.03 C (-0.09 to 0.15) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 to 0.3) per decade. The slope is a straight line fitted to 62 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Inwood 2 SW
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.03 C (-0.09 to 0.15) per decade	0.1 F (-0.2 to 0.3) per decade	1904 to 1971	62	Not clearly different from zero
Mean daily maximum	0.0 C (-0.1 to 0.1) per decade	0.0 F (-0.3 to 0.3) per decade	1904 to 1971	62	Not clearly different from zero
Mean daily minimum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.1 to 0.3) per decade	1904 to 1971	62	Not clearly different from zero

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

1902 to 1973

Yearly extremes at Inwood 2 SW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.1 C (115.0 F)	1936	37.2 C (99.0 F)	70
Coldest night (TNn)	-43.3 C (-45.9 F)	1912	-31.1 C (-24.0 F)	70
Wettest day (Rx1day)	124.2 mm (4.9 in)	1905	50.8 mm (2.0 in)	71
Wettest five days (Rx5day)	161.5 mm (6.4 in)	1905	82.3 mm (3.2 in)	71
Longest dry spell (CDD)	77 days	1910	30 days	71

Hottest day (TXx)

The hottest day of the year at Inwood 2 SW, 1902 to 1973. The record is 46.1 C (115.0 F) in 1936, marked on the chart; the median year is 37.2 C (99.0 F).

Hottest day (TXx) at Inwood 2 SW by year
Year	Hottest day (TXx)
1902	n/a
1904	34.4 C (93.9 F)
1905	37.8 C (100.0 F)
1906	36.7 C (98.1 F)
1907	35.6 C (96.1 F)
1908	37.2 C (99.0 F)
1909	36.1 C (97.0 F)
1910	37.2 C (99.0 F)
1911	41.1 C (106.0 F)
1912	38.3 C (100.9 F)
1913	39.4 C (102.9 F)
1914	37.2 C (99.0 F)
1915	31.7 C (89.1 F)
1916	36.1 C (97.0 F)
1917	38.9 C (102.0 F)
1918	35.6 C (96.1 F)
1919	36.1 C (97.0 F)
1920	37.8 C (100.0 F)
1921	35.6 C (96.1 F)
1922	40.0 C (104.0 F)
1923	35.6 C (96.1 F)
1924	37.8 C (100.0 F)
1925	40.6 C (105.1 F)
1926	42.8 C (109.0 F)
1927	38.3 C (100.9 F)
1928	37.8 C (100.0 F)
1929	37.2 C (99.0 F)
1930	43.3 C (109.9 F)
1931	41.1 C (106.0 F)
1932	41.1 C (106.0 F)
1933	40.6 C (105.1 F)
1934	43.9 C (111.0 F)
1935	40.6 C (105.1 F)
1936	46.1 C (115.0 F)
1937	40.0 C (104.0 F)
1938	37.2 C (99.0 F)
1939	38.9 C (102.0 F)
1940	38.9 C (102.0 F)
1941	38.9 C (102.0 F)
1942	37.8 C (100.0 F)
1943	36.7 C (98.1 F)
1944	35.6 C (96.1 F)
1945	36.1 C (97.0 F)
1946	36.1 C (97.0 F)
1947	41.1 C (106.0 F)
1948	37.2 C (99.0 F)
1949	36.7 C (98.1 F)
1950	34.4 C (93.9 F)
1951	34.4 C (93.9 F)
1952	36.1 C (97.0 F)
1953	37.8 C (100.0 F)
1954	37.2 C (99.0 F)
1955	38.9 C (102.0 F)
1956	38.3 C (100.9 F)
1957	37.8 C (100.0 F)
1958	38.9 C (102.0 F)
1959	37.8 C (100.0 F)
1960	37.2 C (99.0 F)
1961	37.2 C (99.0 F)
1962	35.0 C (95.0 F)
1963	35.6 C (96.1 F)
1964	36.1 C (97.0 F)
1965	37.2 C (99.0 F)
1966	39.4 C (102.9 F)
1967	37.8 C (100.0 F)
1968	36.7 C (98.1 F)
1969	35.0 C (95.0 F)
1970	38.3 C (100.9 F)
1971	36.7 C (98.1 F)
1972	35.0 C (95.0 F)
1973	8.9 C (48.0 F)

Coldest night (TNn)

The coldest night of the year at Inwood 2 SW, 1902 to 1973. The record is -43.3 C (-45.9 F) in 1912, marked on the chart; the median year is -31.1 C (-24.0 F).

Coldest night (TNn) at Inwood 2 SW by year
Year	Coldest night (TNn)
1902	n/a
1904	-32.2 C (-26.0 F)
1905	-36.7 C (-34.1 F)
1906	-35.6 C (-32.1 F)
1907	-31.7 C (-25.1 F)
1908	-26.1 C (-15.0 F)
1909	-33.9 C (-29.0 F)
1910	-34.4 C (-29.9 F)
1911	-37.2 C (-35.0 F)
1912	-43.3 C (-45.9 F)
1913	-30.6 C (-23.1 F)
1914	-33.9 C (-29.0 F)
1915	-29.4 C (-20.9 F)
1916	-36.7 C (-34.1 F)
1917	-39.4 C (-38.9 F)
1918	-36.7 C (-34.1 F)
1919	-30.0 C (-22.0 F)
1920	-32.2 C (-26.0 F)
1921	-27.8 C (-18.0 F)
1922	-31.1 C (-24.0 F)
1923	-30.0 C (-22.0 F)
1924	-36.7 C (-34.1 F)
1925	-28.9 C (-20.0 F)
1926	-28.9 C (-20.0 F)
1927	-29.4 C (-20.9 F)
1928	-27.8 C (-18.0 F)
1929	-33.3 C (-27.9 F)
1930	-34.4 C (-29.9 F)
1931	-24.4 C (-11.9 F)
1932	-31.1 C (-24.0 F)
1933	-35.0 C (-31.0 F)
1934	-29.4 C (-20.9 F)
1935	-30.0 C (-22.0 F)
1936	-35.6 C (-32.1 F)
1937	-29.4 C (-20.9 F)
1938	-30.0 C (-22.0 F)
1939	-28.3 C (-18.9 F)
1940	-30.6 C (-23.1 F)
1941	-24.4 C (-11.9 F)
1942	-33.3 C (-27.9 F)
1943	-32.8 C (-27.0 F)
1944	-31.1 C (-24.0 F)
1945	-27.2 C (-17.0 F)
1946	-28.3 C (-18.9 F)
1947	-26.7 C (-16.1 F)
1948	-33.3 C (-27.9 F)
1949	-31.1 C (-24.0 F)
1950	-32.2 C (-26.0 F)
1951	-29.4 C (-20.9 F)
1952	-28.9 C (-20.0 F)
1953	-30.6 C (-23.1 F)
1954	-30.6 C (-23.1 F)
1955	-29.4 C (-20.9 F)
1956	-29.4 C (-20.9 F)
1957	-28.9 C (-20.0 F)
1958	-33.9 C (-29.0 F)
1959	-32.2 C (-26.0 F)
1960	-31.1 C (-24.0 F)
1961	-30.0 C (-22.0 F)
1962	-37.2 C (-35.0 F)
1963	-31.7 C (-25.1 F)
1964	-28.3 C (-18.9 F)
1965	-31.1 C (-24.0 F)
1966	-35.6 C (-32.1 F)
1967	-31.1 C (-24.0 F)
1968	-31.1 C (-24.0 F)
1969	-29.4 C (-20.9 F)
1970	-35.6 C (-32.1 F)
1971	-28.9 C (-20.0 F)
1972	-35.6 C (-32.1 F)
1973	-29.4 C (-20.9 F)

Wettest day (Rx1day)

The wettest day of the year at Inwood 2 SW, 1902 to 1973. The record is 124.2 mm (4.9 in) in 1905, marked on the chart; the median year is 50.8 mm (2.0 in).

Wettest day (Rx1day) at Inwood 2 SW by year
Year	Wettest day (Rx1day)
1902	50.8 mm (2.0 in)
1904	65.0 mm (2.6 in)
1905	124.2 mm (4.9 in)
1906	53.3 mm (2.1 in)
1907	54.4 mm (2.1 in)
1908	55.6 mm (2.2 in)
1909	64.3 mm (2.5 in)
1910	54.6 mm (2.1 in)
1911	45.7 mm (1.8 in)
1912	39.6 mm (1.6 in)
1913	45.7 mm (1.8 in)
1914	40.1 mm (1.6 in)
1915	36.8 mm (1.4 in)
1916	30.0 mm (1.2 in)
1917	46.2 mm (1.8 in)
1918	64.8 mm (2.6 in)
1919	59.2 mm (2.3 in)
1920	72.4 mm (2.9 in)
1921	40.1 mm (1.6 in)
1922	57.7 mm (2.3 in)
1923	50.8 mm (2.0 in)
1924	24.1 mm (0.9 in)
1925	39.4 mm (1.6 in)
1926	82.6 mm (3.3 in)
1927	45.2 mm (1.8 in)
1928	66.3 mm (2.6 in)
1929	47.2 mm (1.9 in)
1930	41.4 mm (1.6 in)
1931	72.1 mm (2.8 in)
1932	36.3 mm (1.4 in)
1933	106.2 mm (4.2 in)
1934	74.4 mm (2.9 in)
1935	44.7 mm (1.8 in)
1936	68.6 mm (2.7 in)
1937	67.8 mm (2.7 in)
1938	43.9 mm (1.7 in)
1939	70.1 mm (2.8 in)
1940	89.2 mm (3.5 in)
1941	53.3 mm (2.1 in)
1942	91.4 mm (3.6 in)
1943	64.3 mm (2.5 in)
1944	63.2 mm (2.5 in)
1945	43.2 mm (1.7 in)
1946	108.2 mm (4.3 in)
1947	33.5 mm (1.3 in)
1948	41.9 mm (1.6 in)
1949	55.1 mm (2.2 in)
1950	57.4 mm (2.3 in)
1951	44.5 mm (1.8 in)
1952	41.1 mm (1.6 in)
1953	81.3 mm (3.2 in)
1954	69.9 mm (2.8 in)
1955	23.6 mm (0.9 in)
1956	35.6 mm (1.4 in)
1957	39.6 mm (1.6 in)
1958	29.7 mm (1.2 in)
1959	39.1 mm (1.5 in)
1960	66.5 mm (2.6 in)
1961	44.5 mm (1.8 in)
1962	116.1 mm (4.6 in)
1963	50.3 mm (2.0 in)
1964	50.0 mm (2.0 in)
1965	42.2 mm (1.7 in)
1966	33.5 mm (1.3 in)
1967	61.0 mm (2.4 in)
1968	70.4 mm (2.8 in)
1969	49.5 mm (1.9 in)
1970	31.2 mm (1.2 in)
1971	40.6 mm (1.6 in)
1972	98.0 mm (3.9 in)
1973	5.6 mm (0.22 in)

Wettest five days (Rx5day)

The wettest five days of the year at Inwood 2 SW, 1902 to 1973. The record is 161.5 mm (6.4 in) in 1905, marked on the chart; the median year is 82.3 mm (3.2 in).

Wettest five days (Rx5day) at Inwood 2 SW by year
Year	Wettest five days (Rx5day)
1902	127.0 mm (5.0 in)
1904	67.8 mm (2.7 in)
1905	161.5 mm (6.4 in)
1906	132.3 mm (5.2 in)
1907	78.6 mm (3.1 in)
1908	83.6 mm (3.3 in)
1909	93.6 mm (3.7 in)
1910	82.2 mm (3.2 in)
1911	78.2 mm (3.1 in)
1912	42.6 mm (1.7 in)
1913	116.8 mm (4.6 in)
1914	85.6 mm (3.4 in)
1915	82.3 mm (3.2 in)
1916	49.3 mm (1.9 in)
1917	76.7 mm (3.0 in)
1918	91.5 mm (3.6 in)
1919	100.8 mm (4.0 in)
1920	80.3 mm (3.2 in)
1921	107.7 mm (4.2 in)
1922	72.2 mm (2.8 in)
1923	59.0 mm (2.3 in)
1924	45.0 mm (1.8 in)
1925	60.2 mm (2.4 in)
1926	106.9 mm (4.2 in)
1927	60.2 mm (2.4 in)
1928	100.4 mm (4.0 in)
1929	70.4 mm (2.8 in)
1930	104.4 mm (4.1 in)
1931	76.2 mm (3.0 in)
1932	77.7 mm (3.1 in)
1933	106.7 mm (4.2 in)
1934	103.9 mm (4.1 in)
1935	48.3 mm (1.9 in)
1936	110.8 mm (4.4 in)
1937	120.7 mm (4.8 in)
1938	113.2 mm (4.5 in)
1939	89.7 mm (3.5 in)
1940	107.0 mm (4.2 in)
1941	57.4 mm (2.3 in)
1942	113.3 mm (4.5 in)
1943	118.0 mm (4.6 in)
1944	103.4 mm (4.1 in)
1945	66.6 mm (2.6 in)
1946	135.7 mm (5.3 in)
1947	57.9 mm (2.3 in)
1948	52.1 mm (2.1 in)
1949	78.2 mm (3.1 in)
1950	69.0 mm (2.7 in)
1951	81.5 mm (3.2 in)
1952	76.3 mm (3.0 in)
1953	82.3 mm (3.2 in)
1954	145.6 mm (5.7 in)
1955	33.3 mm (1.3 in)
1956	62.3 mm (2.5 in)
1957	55.9 mm (2.2 in)
1958	37.1 mm (1.5 in)
1959	81.7 mm (3.2 in)
1960	83.1 mm (3.3 in)
1961	50.9 mm (2.0 in)
1962	130.8 mm (5.1 in)
1963	105.4 mm (4.1 in)
1964	107.4 mm (4.2 in)
1965	96.8 mm (3.8 in)
1966	52.0 mm (2.0 in)
1967	82.3 mm (3.2 in)
1968	130.9 mm (5.2 in)
1969	61.0 mm (2.4 in)
1970	85.0 mm (3.3 in)
1971	106.4 mm (4.2 in)
1972	127.2 mm (5.0 in)
1973	6.6 mm (0.26 in)

Longest dry spell (CDD)

The longest dry spell of the year at Inwood 2 SW, 1902 to 1973. The record is 77 days in 1910, marked on the chart; the median year is 30 days.

Longest dry spell (CDD) at Inwood 2 SW by year
Year	Longest dry spell (CDD)
1902	12 days
1904	58 days
1905	27 days
1906	24 days
1907	43 days
1908	30 days
1909	16 days
1910	77 days
1911	36 days
1912	31 days
1913	29 days
1914	43 days
1915	23 days
1916	28 days
1917	30 days
1918	20 days
1919	28 days
1920	26 days
1921	32 days
1922	22 days
1923	34 days
1924	27 days
1925	25 days
1926	29 days
1927	34 days
1928	28 days
1929	30 days
1930	34 days
1931	59 days
1932	31 days
1933	24 days
1934	35 days
1935	25 days
1936	35 days
1937	30 days
1938	23 days
1939	74 days
1940	27 days
1941	21 days
1942	38 days
1943	53 days
1944	35 days
1945	41 days
1946	28 days
1947	38 days
1948	36 days
1949	45 days
1950	29 days
1951	36 days
1952	71 days
1953	24 days
1954	34 days
1955	22 days
1956	29 days
1957	29 days
1958	38 days
1959	25 days
1960	47 days
1961	30 days
1962	52 days
1963	21 days
1964	52 days
1965	22 days
1966	27 days
1967	40 days
1968	40 days
1969	24 days
1970	32 days
1971	33 days
1972	21 days
1973	13 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

62 years with a frost

Across 62 years with a frost, the median last spring frost at Inwood 2 SW falls on 11 May and the median first autumn frost on 28 September, which leaves a median of 141 days between them.

In 1939 to 1971 the median growing season was 141 days. The two periods have the same number of growing days.

Fitted over all years, the growing season changes by +0.4 days per decade at this station.

Frost dates and growing season at Inwood 2 SW
Measure	Median, all years	Earliest period (1904 to 1936)	Recent period (1939 to 1971)	Recent against earliest	Fitted trend
Last spring frost	11 May	11 May	11 May	no change	-0.2 days per decade
First autumn frost	28 September	27 September	30 September	3 days later	+0.2 days per decade
Growing days	141 days	141 days	141 days	no change	+0.4 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

69 years, 1904 to 1972

A day with at least 51.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 133.3 mm (5.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Inwood 2 SW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	51.8 mm (2.0 in)
5 years	70.7 mm (2.8 in)
10 years	84.3 mm (3.3 in)
25 years	102.8 mm (4.0 in)
50 years	117.7 mm (4.6 in)
100 years	133.3 mm (5.2 in)	Longer than the 69 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, 69 years of values from 1904 to 1972.

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: 124.2 mm (4.9 in) in 1905; 116.1 mm (4.6 in) in 1962; 108.2 mm (4.3 in) in 1946.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Inwood 2 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Inwood 2 SW 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).