Ravenswood Lock Park Weather Records (USC00467352)

Record envelope, standing records and threshold days for Ravenswood Lock Park (USC00467352), West Virginia, United States, with 66 years of record.

Key Facts for Ravenswood Lock Park

Ravenswood Lock Park (USC00467352) is a weather station in West Virginia, United States at 38.95 latitude and -81.77 longitude, 177 m (581 ft) above sea level.
The station reports from 1915 to 1980, 66 years of record.
1,464 records set at Ravenswood Lock Park still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ravenswood Lock Park set a daily record high minimum temperature of 24.4 C (75.9 F) on 31 July 1980.

About the Station

Location: West Virginia, United States, 38.95 latitude, -81.77 longitude.
Elevation: 177 m (581 ft).
Period of record: 1915 to 1980, 66 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 Ravenswood Lock Park. 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 Ravenswood Lock Park, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.0 C (77.0 F)	-30.0 C (-22.0 F)	n/a	n/a
Feb	24.4 C (75.9 F)	-25.6 C (-14.1 F)	n/a	n/a
Mar	30.6 C (87.1 F)	-22.8 C (-9.0 F)	n/a	n/a
Apr	34.4 C (93.9 F)	-9.4 C (15.1 F)	n/a	n/a
May	36.7 C (98.1 F)	-7.2 C (19.0 F)	n/a	n/a
Jun	38.9 C (102.0 F)	1.1 C (34.0 F)	n/a	n/a
Jul	42.8 C (109.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	40.6 C (105.1 F)	4.4 C (39.9 F)	n/a	n/a
Sep	39.4 C (102.9 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	33.9 C (93.0 F)	-8.9 C (16.0 F)	n/a	n/a
Nov	30.6 C (87.1 F)	-15.6 C (3.9 F)	n/a	n/a
Dec	25.6 C (78.1 F)	-24.4 C (-11.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ravenswood Lock Park still stand. 1936 holds the most, with 63.

Standing records at Ravenswood Lock Park by the year they were set
Year set	Standing records
1923	30
1924	31
1925	49
1926	30
1927	50
1928	28
1929	40
1930	56
1931	28
1932	33
1933	33
1934	43
1935	27
1936	63
1937	34
1938	16
1939	33
1940	21
1941	34
1942	27
1943	23
1944	14
1945	42
1946	11
1947	37
1948	20
1949	14
1950	23
1951	27
1952	13
1953	22
1954	27
1955	26
1956	9
1957	12
1958	14
1959	15
1960	26
1961	22
1962	29
1963	26
1964	21
1965	24
1966	27
1967	36
1968	12
1969	8
1970	16
1971	18
1972	14
1973	21
1974	13
1975	10
1976	21
1977	30
1978	13
1979	13
1980	9

All-Time Record Progression

3 new records

3 all-time records were set at Ravenswood Lock Park between 10 August 1952 and 17 January 1977. Each dot is a new record.

When Ravenswood Lock Park set new all-time records
Date	Kind	Detail
1952-08-10	Record daily precipitation	Record daily precipitation 92.7 mm (3.6 in)
1966-01-30	Record low maximum temperature	Record low maximum temperature -12.2 C (10.0 F)
1977-01-17	Record low maximum temperature	Record low maximum temperature -13.9 C (7.0 F)

Wettest Day of Each Month

Aug: 92.7 mm (3.6 in)

The wettest day on record for each calendar month at Ravenswood Lock Park. The most was 92.7 mm (3.6 in) on 10 August 1952.

Record daily precipitation for each month at Ravenswood Lock Park
Month	Record daily precipitation (mm)	Date
Jan	56.6 mm (2.2 in)	12 January 1916
Feb	50.8 mm (2.0 in)	27 February 1945
Mar	61.0 mm (2.4 in)	6 March 1967
Apr	53.3 mm (2.1 in)	6 April 1936
May	61.7 mm (2.4 in)	27 May 1917
Jun	63.5 mm (2.5 in)	29 June 1924
Jul	86.4 mm (3.4 in)	3 July 1925
Aug	92.7 mm (3.6 in)	10 August 1952
Sep	66.0 mm (2.6 in)	13 September 1938
Oct	82.6 mm (3.3 in)	1 October 1915
Nov	47.0 mm (1.9 in)	19 November 1957
Dec	55.9 mm (2.2 in)	7 December 1919

Period of Record Coverage

1923 to 1980

58 years of record at Ravenswood Lock Park, 1923 to 1980. 9 years have data for under 90 percent of days and are left out of rankings: 1923, 1928, 1937, 1969, 1970, 1972, 1974, 1979 and others.

Days with data per year at Ravenswood Lock Park
Year	Days with data	Share of year	Complete
1923	239	65%	No
1924	365	100%	Yes
1925	360	99%	Yes
1926	365	100%	Yes
1927	354	97%	Yes
1928	320	87%	No
1929	346	95%	Yes
1930	364	100%	Yes
1931	364	100%	Yes
1932	362	99%	Yes
1933	364	100%	Yes
1934	365	100%	Yes
1935	364	100%	Yes
1936	365	100%	Yes
1937	328	90%	No
1938	363	99%	Yes
1939	361	99%	Yes
1940	364	99%	Yes
1941	364	100%	Yes
1942	364	100%	Yes
1943	351	96%	Yes
1944	342	93%	Yes
1945	340	93%	Yes
1946	348	95%	Yes
1947	361	99%	Yes
1948	359	98%	Yes
1949	361	99%	Yes
1950	365	100%	Yes
1951	364	100%	Yes
1952	366	100%	Yes
1953	363	99%	Yes
1954	364	100%	Yes
1955	362	99%	Yes
1956	365	100%	Yes
1957	360	99%	Yes
1958	360	99%	Yes
1959	364	100%	Yes
1960	365	100%	Yes
1961	361	99%	Yes
1962	356	98%	Yes
1963	359	98%	Yes
1964	363	99%	Yes
1965	362	99%	Yes
1966	360	99%	Yes
1967	363	99%	Yes
1968	361	99%	Yes
1969	303	83%	No
1970	304	83%	No
1971	365	100%	Yes
1972	241	66%	No
1973	363	99%	Yes
1974	301	82%	No
1975	347	95%	Yes
1976	360	98%	Yes
1977	362	99%	Yes
1978	359	98%	Yes
1979	266	73%	No
1980	212	58%	No

Latest Records

Latest records at Ravenswood Lock Park
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1980	Ravenswood Lock Park, US	daily high min	24.4 C (75.9 F)	1.1 C (2.0 F)	49 years	22 of 100 (Routine)
16 July 1980	Ravenswood Lock Park, US	daily high min	22.8 C (73.0 F)	0.6 C (1.1 F)	25 years	13 of 100 (Routine)
10 July 1980	Ravenswood Lock Park, US	daily rain	30.5 mm (1.2 in)	4.1 mm (0.16 in)	9 years	11 of 100 (Routine)
9 July 1980	Ravenswood Lock Park, US	daily rain (Tie)	55.9 mm (2.2 in)	tie	5 years	1 of 100 (Routine)
16 June 1980	Ravenswood Lock Park, US	daily rain	22.9 mm (0.9 in)	3.3 mm (0.13 in)	6 years	10 of 100 (Routine)
4 June 1980	Ravenswood Lock Park, US	daily high min (Tie)	18.9 C (66.0 F)	tie	43 years	4 of 100 (Routine)
3 June 1980	Ravenswood Lock Park, US	daily high min	20.0 C (68.0 F)	0.6 C (1.1 F)	41 years	18 of 100 (Routine)
13 May 1980	Ravenswood Lock Park, US	daily high min (Tie)	18.3 C (64.9 F)	tie	47 years	4 of 100 (Routine)
3 March 1980	Ravenswood Lock Park, US	daily low min	-22.2 C (-8.0 F)	7.2 C (13.0 F)	30 years	26 of 100 (Routine)
2 March 1980	Ravenswood Lock Park, US	daily snow depth	15.2 cm (6.0 in)	2.5 cm (1.0 in)	26 years	17 of 100 (Routine)
2 March 1980	Ravenswood Lock Park, US	daily low min	-15.6 C (3.9 F)	1.2 C (2.2 F)	2 years	7 of 100 (Routine)
2 March 1980	Ravenswood Lock Park, US	monthly low max (Tie)	-6.7 C (19.9 F)	tie	29 years	5 of 100 (Routine)
1 March 1980	Ravenswood Lock Park, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	3 years	36 of 100 (Notable)
1 March 1980	Ravenswood Lock Park, US	daily low max	-5.0 C (23.0 F)	3.3 C (5.9 F)	31 years	18 of 100 (Routine)
29 February 1980	Ravenswood Lock Park, US	daily snow depth	5.1 cm (2.0 in)	2.6 cm (1.0 in)	20 years	14 of 100 (Routine)
29 February 1980	Ravenswood Lock Park, US	daily low max	0.0 C (32.0 F)	1.1 C (2.0 F)	20 years	12 of 100 (Routine)
29 February 1980	Ravenswood Lock Park, US	daily low min	-12.8 C (9.0 F)	0.6 C (1.1 F)	16 years	9 of 100 (Routine)
28 February 1980	Ravenswood Lock Park, US	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	62 years	29 of 100 (Routine)
6 January 1980	Ravenswood Lock Park, US	daily snow depth (Tie)	10.2 cm (4.0 in)	tie	12 years	2 of 100 (Routine)
5 January 1980	Ravenswood Lock Park, US	daily snow depth (Tie)	10.2 cm (4.0 in)	tie	12 years	2 of 100 (Routine)

Climate Trend

47 complete years, 1925 to 1978

One stripe for each of 47 complete years at Ravenswood Lock Park, 1925 to 1978. Blue stripes are years cooler than the station's own mean of 12.8 C (55.0 F); red stripes are warmer. The coolest year was 1967, at 11.5 C (52.6 F), and the warmest was 1931, at 14.1 C (57.3 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Ravenswood Lock Park as warming stripes, 1925 to 1978
Year	Annual mean temperature	Difference from the station mean
1925	12.7 C	-0.11 C
1926	11.9 C	-0.89 C
1927	12.9 C	+0.09 C
1930	13.5 C	+0.68 C
1931	14.1 C	+1.29 C
1932	13.4 C	+0.62 C
1933	13.6 C	+0.83 C
1934	13.4 C	+0.64 C
1935	13.2 C	+0.43 C
1936	13.9 C	+1.15 C
1938	13.6 C	+0.76 C
1939	13.9 C	+1.15 C
1940	12.4 C	-0.40 C
1941	13.5 C	+0.68 C
1942	13.0 C	+0.20 C
1943	11.8 C	-0.98 C
1944	12.0 C	-0.76 C
1945	11.6 C	-1.15 C
1946	12.7 C	-0.08 C
1947	12.8 C	+0.02 C
1948	12.9 C	+0.11 C
1949	13.1 C	+0.27 C
1950	12.1 C	-0.71 C
1951	12.7 C	-0.05 C
1952	13.6 C	+0.84 C
1953	13.7 C	+0.86 C
1954	13.2 C	+0.44 C
1955	13.2 C	+0.38 C
1956	12.9 C	+0.13 C
1957	13.3 C	+0.47 C
1958	11.5 C	-1.28 C
1959	13.4 C	+0.60 C
1960	12.1 C	-0.73 C
1961	12.6 C	-0.16 C
1962	12.2 C	-0.56 C
1963	11.6 C	-1.21 C
1964	13.1 C	+0.31 C
1965	12.8 C	+0.05 C
1966	11.9 C	-0.90 C
1967	11.5 C	-1.34 C
1968	12.5 C	-0.31 C
1971	13.0 C	+0.17 C
1973	13.7 C	+0.88 C
1975	13.0 C	+0.24 C
1976	11.5 C	-1.30 C
1977	12.5 C	-0.27 C
1978	11.5 C	-1.31 C

The annual mean temperature here has fallen by 0.19 C (0.05 to 0.33) per decade over 1925 to 1978. In Fahrenheit: 0.3 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ravenswood Lock Park
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.19 C (-0.33 to -0.05) per decade	-0.3 F (-0.6 to -0.1) per decade	1925 to 1978	47	Fall
Mean daily maximum	-0.3 C (-0.4 to -0.1) per decade	-0.5 F (-0.8 to -0.2) per decade	1925 to 1978	47	Fall
Mean daily minimum	-0.10 C (-0.25 to 0.04) per decade	-0.2 F (-0.5 to 0.1) per decade	1925 to 1978	47	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

1915 to 1980

Yearly extremes at Ravenswood Lock Park: 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)	1936	35.6 C (96.1 F)	58
Coldest night (TNn)	-30.0 C (-22.0 F)	1936	-18.3 C (-0.9 F)	58
Wettest day (Rx1day)	92.7 mm (3.6 in)	1952	53.3 mm (2.1 in)	63
Wettest five days (Rx5day)	132.1 mm (5.2 in)	1948	87.7 mm (3.5 in)	63
Longest dry spell (CDD)	44 days	1963	17 days	63

Hottest day (TXx)

The hottest day of the year at Ravenswood Lock Park, 1915 to 1980. The record is 42.8 C (109.0 F) in 1936, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at Ravenswood Lock Park by year
Year	Hottest day (TXx)
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1923	35.6 C (96.1 F)
1924	35.6 C (96.1 F)
1925	38.9 C (102.0 F)
1926	37.8 C (100.0 F)
1927	35.6 C (96.1 F)
1928	33.9 C (93.0 F)
1929	36.1 C (97.0 F)
1930	38.9 C (102.0 F)
1931	38.3 C (100.9 F)
1932	38.9 C (102.0 F)
1933	38.9 C (102.0 F)
1934	40.6 C (105.1 F)
1935	36.7 C (98.1 F)
1936	42.8 C (109.0 F)
1937	36.1 C (97.0 F)
1938	35.0 C (95.0 F)
1939	39.4 C (102.9 F)
1940	38.3 C (100.9 F)
1941	37.2 C (99.0 F)
1942	36.1 C (97.0 F)
1943	34.4 C (93.9 F)
1944	36.1 C (97.0 F)
1945	33.3 C (91.9 F)
1946	33.3 C (91.9 F)
1947	34.4 C (93.9 F)
1948	38.3 C (100.9 F)
1949	36.7 C (98.1 F)
1950	33.3 C (91.9 F)
1951	34.4 C (93.9 F)
1952	37.2 C (99.0 F)
1953	38.9 C (102.0 F)
1954	38.9 C (102.0 F)
1955	38.3 C (100.9 F)
1956	33.3 C (91.9 F)
1957	37.2 C (99.0 F)
1958	32.8 C (91.0 F)
1959	36.7 C (98.1 F)
1960	33.9 C (93.0 F)
1961	32.8 C (91.0 F)
1962	35.0 C (95.0 F)
1963	35.0 C (95.0 F)
1964	35.6 C (96.1 F)
1965	36.7 C (98.1 F)
1966	37.8 C (100.0 F)
1967	34.4 C (93.9 F)
1968	35.0 C (95.0 F)
1969	35.0 C (95.0 F)
1970	35.0 C (95.0 F)
1971	36.7 C (98.1 F)
1972	30.6 C (87.1 F)
1973	35.0 C (95.0 F)
1974	32.2 C (90.0 F)
1975	35.6 C (96.1 F)
1976	34.4 C (93.9 F)
1977	37.8 C (100.0 F)
1978	35.6 C (96.1 F)
1979	32.2 C (90.0 F)
1980	34.4 C (93.9 F)

Coldest night (TNn)

The coldest night of the year at Ravenswood Lock Park, 1915 to 1980. The record is -30.0 C (-22.0 F) in 1936, marked on the chart; the median year is -18.3 C (-0.9 F).

Coldest night (TNn) at Ravenswood Lock Park by year
Year	Coldest night (TNn)
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1923	-8.3 C (17.1 F)
1924	-16.7 C (1.9 F)
1925	-16.7 C (1.9 F)
1926	-16.7 C (1.9 F)
1927	-17.8 C (0.0 F)
1928	-17.8 C (0.0 F)
1929	-17.8 C (0.0 F)
1930	-21.1 C (-6.0 F)
1931	-12.2 C (10.0 F)
1932	-16.1 C (3.0 F)
1933	-19.4 C (-2.9 F)
1934	-25.6 C (-14.1 F)
1935	-23.3 C (-9.9 F)
1936	-30.0 C (-22.0 F)
1937	-17.8 C (0.0 F)
1938	-13.3 C (8.1 F)
1939	-17.2 C (1.0 F)
1940	-21.1 C (-6.0 F)
1941	-13.9 C (7.0 F)
1942	-24.4 C (-11.9 F)
1943	-22.8 C (-9.0 F)
1944	-18.3 C (-0.9 F)
1945	-20.0 C (-4.0 F)
1946	-13.9 C (7.0 F)
1947	-17.8 C (0.0 F)
1948	-25.6 C (-14.1 F)
1949	-14.4 C (6.1 F)
1950	-16.1 C (3.0 F)
1951	-21.1 C (-6.0 F)
1952	-12.2 C (10.0 F)
1953	-12.8 C (9.0 F)
1954	-21.1 C (-6.0 F)
1955	-21.1 C (-6.0 F)
1956	-14.4 C (6.1 F)
1957	-23.9 C (-11.0 F)
1958	-18.3 C (-0.9 F)
1959	-18.3 C (-0.9 F)
1960	-18.9 C (-2.0 F)
1961	-25.0 C (-13.0 F)
1962	-23.9 C (-11.0 F)
1963	-28.3 C (-18.9 F)
1964	-19.4 C (-2.9 F)
1965	-21.7 C (-7.1 F)
1966	-22.2 C (-8.0 F)
1967	-21.7 C (-7.1 F)
1968	-23.9 C (-11.0 F)
1969	-17.8 C (0.0 F)
1970	-21.7 C (-7.1 F)
1971	-16.7 C (1.9 F)
1972	-16.7 C (1.9 F)
1973	-15.6 C (3.9 F)
1974	-12.8 C (9.0 F)
1975	-16.1 C (3.0 F)
1976	-17.8 C (0.0 F)
1977	-26.7 C (-16.1 F)
1978	-21.1 C (-6.0 F)
1979	-19.4 C (-2.9 F)
1980	-22.2 C (-8.0 F)

Wettest day (Rx1day)

The wettest day of the year at Ravenswood Lock Park, 1915 to 1980. The record is 92.7 mm (3.6 in) in 1952, marked on the chart; the median year is 53.3 mm (2.1 in).

Wettest day (Rx1day) at Ravenswood Lock Park by year
Year	Wettest day (Rx1day)
1915	82.6 mm (3.3 in)
1916	56.6 mm (2.2 in)
1917	61.7 mm (2.4 in)
1918	48.0 mm (1.9 in)
1919	55.9 mm (2.2 in)
1923	50.8 mm (2.0 in)
1924	63.5 mm (2.5 in)
1925	86.4 mm (3.4 in)
1926	60.5 mm (2.4 in)
1927	53.3 mm (2.1 in)
1928	45.7 mm (1.8 in)
1929	33.0 mm (1.3 in)
1930	28.7 mm (1.1 in)
1931	54.6 mm (2.1 in)
1932	42.4 mm (1.7 in)
1933	64.0 mm (2.5 in)
1934	51.1 mm (2.0 in)
1935	58.4 mm (2.3 in)
1936	53.3 mm (2.1 in)
1937	48.3 mm (1.9 in)
1938	66.0 mm (2.6 in)
1939	53.3 mm (2.1 in)
1940	48.3 mm (1.9 in)
1941	43.4 mm (1.7 in)
1942	49.0 mm (1.9 in)
1943	79.8 mm (3.1 in)
1944	44.2 mm (1.7 in)
1945	50.8 mm (2.0 in)
1946	61.2 mm (2.4 in)
1947	39.4 mm (1.6 in)
1948	54.6 mm (2.1 in)
1949	52.1 mm (2.1 in)
1950	53.6 mm (2.1 in)
1951	58.9 mm (2.3 in)
1952	92.7 mm (3.6 in)
1953	37.3 mm (1.5 in)
1954	42.7 mm (1.7 in)
1955	36.8 mm (1.4 in)
1956	43.2 mm (1.7 in)
1957	50.5 mm (2.0 in)
1958	50.8 mm (2.0 in)
1959	31.8 mm (1.3 in)
1960	37.8 mm (1.5 in)
1961	47.2 mm (1.9 in)
1962	86.1 mm (3.4 in)
1963	44.5 mm (1.8 in)
1964	68.6 mm (2.7 in)
1965	33.0 mm (1.3 in)
1966	57.4 mm (2.3 in)
1967	61.0 mm (2.4 in)
1968	45.7 mm (1.8 in)
1969	72.9 mm (2.9 in)
1970	38.6 mm (1.5 in)
1971	59.7 mm (2.4 in)
1972	40.6 mm (1.6 in)
1973	41.9 mm (1.6 in)
1974	57.2 mm (2.3 in)
1975	55.9 mm (2.2 in)
1976	63.5 mm (2.5 in)
1977	62.2 mm (2.4 in)
1978	43.2 mm (1.7 in)
1979	57.2 mm (2.3 in)
1980	55.9 mm (2.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ravenswood Lock Park, 1915 to 1980. The record is 132.1 mm (5.2 in) in 1948, marked on the chart; the median year is 87.7 mm (3.5 in).

Wettest five days (Rx5day) at Ravenswood Lock Park by year
Year	Wettest five days (Rx5day)
1915	99.3 mm (3.9 in)
1916	82.8 mm (3.3 in)
1917	118.3 mm (4.7 in)
1918	95.3 mm (3.8 in)
1919	88.9 mm (3.5 in)
1923	87.9 mm (3.5 in)
1924	78.7 mm (3.1 in)
1925	100.4 mm (4.0 in)
1926	80.5 mm (3.2 in)
1927	90.0 mm (3.5 in)
1928	71.3 mm (2.8 in)
1929	81.3 mm (3.2 in)
1930	37.5 mm (1.5 in)
1931	96.0 mm (3.8 in)
1932	89.6 mm (3.5 in)
1933	84.9 mm (3.3 in)
1934	68.6 mm (2.7 in)
1935	86.8 mm (3.4 in)
1936	89.5 mm (3.5 in)
1937	108.8 mm (4.3 in)
1938	100.6 mm (4.0 in)
1939	93.4 mm (3.7 in)
1940	90.2 mm (3.6 in)
1941	124.1 mm (4.9 in)
1942	97.8 mm (3.9 in)
1943	112.5 mm (4.4 in)
1944	69.6 mm (2.7 in)
1945	105.9 mm (4.2 in)
1946	72.9 mm (2.9 in)
1947	51.1 mm (2.0 in)
1948	132.1 mm (5.2 in)
1949	72.1 mm (2.8 in)
1950	86.1 mm (3.4 in)
1951	73.4 mm (2.9 in)
1952	120.1 mm (4.7 in)
1953	48.8 mm (1.9 in)
1954	74.9 mm (2.9 in)
1955	59.1 mm (2.3 in)
1956	69.8 mm (2.7 in)
1957	64.1 mm (2.5 in)
1958	99.5 mm (3.9 in)
1959	55.6 mm (2.2 in)
1960	61.5 mm (2.4 in)
1961	77.2 mm (3.0 in)
1962	98.8 mm (3.9 in)
1963	89.7 mm (3.5 in)
1964	70.4 mm (2.8 in)
1965	54.4 mm (2.1 in)
1966	93.2 mm (3.7 in)
1967	106.2 mm (4.2 in)
1968	109.7 mm (4.3 in)
1969	77.5 mm (3.1 in)
1970	83.1 mm (3.3 in)
1971	87.7 mm (3.5 in)
1972	82.8 mm (3.3 in)
1973	88.6 mm (3.5 in)
1974	95.6 mm (3.8 in)
1975	73.6 mm (2.9 in)
1976	85.1 mm (3.4 in)
1977	115.9 mm (4.6 in)
1978	85.3 mm (3.4 in)
1979	94.2 mm (3.7 in)
1980	101.6 mm (4.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ravenswood Lock Park, 1915 to 1980. The record is 44 days in 1963, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Ravenswood Lock Park by year
Year	Longest dry spell (CDD)
1915	13 days
1916	22 days
1917	24 days
1918	29 days
1919	20 days
1923	20 days
1924	27 days
1925	15 days
1926	9 days
1927	17 days
1928	19 days
1929	15 days
1930	23 days
1931	18 days
1932	17 days
1933	14 days
1934	19 days
1935	21 days
1936	20 days
1937	14 days
1938	21 days
1939	14 days
1940	14 days
1941	17 days
1942	18 days
1943	37 days
1944	16 days
1945	13 days
1946	17 days
1947	16 days
1948	13 days
1949	13 days
1950	12 days
1951	13 days
1952	22 days
1953	24 days
1954	13 days
1955	29 days
1956	16 days
1957	18 days
1958	12 days
1959	18 days
1960	16 days
1961	11 days
1962	15 days
1963	44 days
1964	30 days
1965	15 days
1966	21 days
1967	17 days
1968	15 days
1969	26 days
1970	14 days
1971	13 days
1972	8 days
1973	19 days
1974	16 days
1975	15 days
1976	16 days
1977	25 days
1978	13 days
1979	10 days
1980	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

47 years with a frost

Across 47 years with a frost, the median last spring frost at Ravenswood Lock Park falls on 29 April and the median first autumn frost on 10 October, which leaves a median of 165 days between them.

Fitted over all years, the growing season changes by -1.0 days per decade at this station.

Frost dates and growing season at Ravenswood Lock Park
Measure	Median, all years	Earliest period	Recent period (1945 to 1978)	Recent against earliest	Fitted trend
Last spring frost	29 April	n/a	29 April	n/a	+0.4 days per decade
First autumn frost	10 October	n/a	7 October	n/a	-0.7 days per decade
Growing days	165 days	n/a	164 days	n/a	-1.0 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

55 years, 1916 to 1979

A day with at least 52.0 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 91.3 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Ravenswood Lock Park: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	52.0 mm (2.0 in)
5 years	64.1 mm (2.5 in)
10 years	71.5 mm (2.8 in)
25 years	80.0 mm (3.1 in)
50 years	85.9 mm (3.4 in)
100 years	91.3 mm (3.6 in)	Longer than the 55 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, 55 years of values from 1916 to 1979.

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: 92.7 mm (3.6 in) in 1952; 86.4 mm (3.4 in) in 1925; 86.1 mm (3.4 in) in 1962.

Station Changes

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

Download the Data

Data for Ravenswood Lock Park standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ravenswood Lock Park 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.

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