Ravenna Lock 12 Weather Records (USC00156679)

Record envelope, standing records and threshold days for Ravenna Lock 12 (USC00156679), Kentucky, United States, with 59 years of record.

Key Facts for Ravenna Lock 12

Ravenna Lock 12 (USC00156679) is a weather station in Kentucky, United States at 37.67 latitude and -83.95 longitude, 192 m (630 ft) above sea level.
The station reports from 1923 to 1981, 59 years of record.
62 records set at Ravenna Lock 12 still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ravenna Lock 12 set a daily record precipitation of 49.5 mm (1.9 in) on 19 May 1981.

About the Station

Location: Kentucky, United States, 37.67 latitude, -83.95 longitude.
Elevation: 192 m (630 ft).
Period of record: 1923 to 1981, 59 years.
Eligible elements: 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 Ravenna Lock 12. 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 Ravenna Lock 12, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	15.6 C (60.1 F)	n/a	n/a	n/a

Which Years Hold Standing Records

62 standing records

62 records at Ravenna Lock 12 still stand. 1970 holds the most, with 62.

All-Time Record Progression

1 new records

1 all-time records were set at Ravenna Lock 12 between 9 July 1955 and 9 July 1955. Each dot is a new record.

Wettest Day of Each Month

Jul: 143.5 mm (5.6 in)

The wettest day on record for each calendar month at Ravenna Lock 12. The most was 143.5 mm (5.6 in) on 9 July 1955.

Record daily precipitation for each month at Ravenna Lock 12
Month	Record daily precipitation (mm)	Date
Jan	68.6 mm (2.7 in)	3 January 1924
Feb	61.0 mm (2.4 in)	1 February 1951
Mar	63.0 mm (2.5 in)	31 March 1962
Apr	65.3 mm (2.6 in)	12 April 1972
May	64.8 mm (2.6 in)	28 May 1963
Jun	77.2 mm (3.0 in)	29 June 1928
Jul	143.5 mm (5.6 in)	9 July 1955
Aug	91.4 mm (3.6 in)	3 August 1932
Sep	106.2 mm (4.2 in)	19 September 1949
Oct	64.5 mm (2.5 in)	31 October 1949
Nov	96.5 mm (3.8 in)	4 November 1936
Dec	107.2 mm (4.2 in)	8 December 1978

Period of Record Coverage

1970 to 1970

1 years of record at Ravenna Lock 12, 1970 to 1970. 1 years have data for under 90 percent of days and are left out of rankings: 1970.

Latest Records

Latest records at Ravenna Lock 12
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 May 1981	Ravenna Lock 12, US	daily rain	49.5 mm (1.9 in)	6.8 mm (0.27 in)	16 years	15 of 100 (Routine)
17 February 1981	Ravenna Lock 12, US	daily rain	27.2 mm (1.1 in)	2.8 mm (0.11 in)	25 years	14 of 100 (Routine)
2 February 1981	Ravenna Lock 12, US	daily rain	51.8 mm (2.0 in)	28.9 mm (1.1 in)	25 years	41 of 100 (Notable)
18 November 1980	Ravenna Lock 12, US	daily rain	49.8 mm (2.0 in)	26.4 mm (1.0 in)	12 years	29 of 100 (Routine)
23 September 1980	Ravenna Lock 12, US	daily rain	32.3 mm (1.3 in)	2.3 mm (0.09 in)	29 years	14 of 100 (Routine)
20 May 1980	Ravenna Lock 12, US	daily rain	29.2 mm (1.1 in)	2.5 mm (0.10 in)	28 years	15 of 100 (Routine)
26 February 1980	Ravenna Lock 12, US	daily snowfall (Tie)	2.5 cm (1.0 in)	tie	16 years	2 of 100 (Routine)
26 February 1980	Ravenna Lock 12, US	daily snow depth (Tie)	2.5 cm (1.0 in)	tie	16 years	2 of 100 (Routine)
15 February 1980	Ravenna Lock 12, US	daily snow depth	5.1 cm (2.0 in)	2.6 cm (1.0 in)	21 years	14 of 100 (Routine)
14 February 1980	Ravenna Lock 12, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	9 years	16 of 100 (Routine)
13 February 1980	Ravenna Lock 12, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	16 years	13 of 100 (Routine)
12 February 1980	Ravenna Lock 12, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	0 years	0 of 100 (Routine)
11 February 1980	Ravenna Lock 12, US	daily snow depth	15.2 cm (6.0 in)	5.0 cm (2.0 in)	8 years	15 of 100 (Routine)
6 February 1980	Ravenna Lock 12, US	daily snowfall	6.4 cm (2.5 in)	5.1 cm (2.0 in)	9 years	23 of 100 (Routine)
6 February 1980	Ravenna Lock 12, US	daily snow depth	17.8 cm (7.0 in)	7.6 cm (3.0 in)	1 year	19 of 100 (Routine)
5 February 1980	Ravenna Lock 12, US	daily snow depth	12.7 cm (5.0 in)	5.1 cm (2.0 in)	13 years	18 of 100 (Routine)
4 February 1980	Ravenna Lock 12, US	daily snow depth	12.7 cm (5.0 in)	5.1 cm (2.0 in)	13 years	18 of 100 (Routine)
3 February 1980	Ravenna Lock 12, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	1 year	0 of 100 (Routine)
31 January 1980	Ravenna Lock 12, US	daily snowfall	15.2 cm (6.0 in)	10.1 cm (4.0 in)	32 years	37 of 100 (Notable)
4 January 1980	Ravenna Lock 12, US	daily snowfall (Tie)	2.5 cm (1.0 in)	tie	2 years	1 of 100 (Routine)

Extremes by Year

1923 to 1981

Yearly extremes at Ravenna Lock 12: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	15.6 C (60.1 F)	1970	15.6 C (60.1 F)	1
Wettest day (Rx1day)	143.5 mm (5.6 in)	1955	61.0 mm (2.4 in)	59
Wettest five days (Rx5day)	196.1 mm (7.7 in)	1978	103.7 mm (4.1 in)	59
Longest dry spell (CDD)	39 days	1924	17 days	59

Hottest day (TXx)

The hottest day of the year at Ravenna Lock 12, 1923 to 1981. The record is 15.6 C (60.1 F) in 1970, marked on the chart; the median year is 15.6 C (60.1 F).

Hottest day (TXx) at Ravenna Lock 12 by year
Year	Hottest day (TXx)
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	15.6 C (60.1 F)
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a

Wettest day (Rx1day)

The wettest day of the year at Ravenna Lock 12, 1923 to 1981. The record is 143.5 mm (5.6 in) in 1955, marked on the chart; the median year is 61.0 mm (2.4 in).

Wettest day (Rx1day) at Ravenna Lock 12 by year
Year	Wettest day (Rx1day)
1923	41.9 mm (1.6 in)
1924	80.0 mm (3.1 in)
1925	55.1 mm (2.2 in)
1926	63.2 mm (2.5 in)
1927	75.4 mm (3.0 in)
1928	77.2 mm (3.0 in)
1929	47.0 mm (1.9 in)
1930	18.3 mm (0.7 in)
1931	50.8 mm (2.0 in)
1932	91.4 mm (3.6 in)
1933	53.3 mm (2.1 in)
1934	57.9 mm (2.3 in)
1935	54.4 mm (2.1 in)
1936	96.5 mm (3.8 in)
1937	48.3 mm (1.9 in)
1938	84.1 mm (3.3 in)
1939	64.5 mm (2.5 in)
1940	41.7 mm (1.6 in)
1941	45.7 mm (1.8 in)
1942	54.6 mm (2.1 in)
1943	59.9 mm (2.4 in)
1944	73.9 mm (2.9 in)
1945	66.8 mm (2.6 in)
1946	54.6 mm (2.1 in)
1947	53.6 mm (2.1 in)
1948	62.0 mm (2.4 in)
1949	106.2 mm (4.2 in)
1950	42.9 mm (1.7 in)
1951	61.0 mm (2.4 in)
1952	92.2 mm (3.6 in)
1953	68.6 mm (2.7 in)
1954	81.3 mm (3.2 in)
1955	143.5 mm (5.6 in)
1956	53.3 mm (2.1 in)
1957	81.3 mm (3.2 in)
1958	53.3 mm (2.1 in)
1959	45.7 mm (1.8 in)
1960	72.1 mm (2.8 in)
1961	52.1 mm (2.1 in)
1962	63.0 mm (2.5 in)
1963	64.8 mm (2.6 in)
1964	50.8 mm (2.0 in)
1965	83.3 mm (3.3 in)
1966	55.6 mm (2.2 in)
1967	68.8 mm (2.7 in)
1968	76.7 mm (3.0 in)
1969	81.3 mm (3.2 in)
1970	55.9 mm (2.2 in)
1971	50.3 mm (2.0 in)
1972	65.3 mm (2.6 in)
1973	105.2 mm (4.1 in)
1974	57.7 mm (2.3 in)
1975	88.9 mm (3.5 in)
1976	49.5 mm (1.9 in)
1977	45.2 mm (1.8 in)
1978	107.2 mm (4.2 in)
1979	69.9 mm (2.8 in)
1980	49.8 mm (2.0 in)
1981	51.8 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ravenna Lock 12, 1923 to 1981. The record is 196.1 mm (7.7 in) in 1978, marked on the chart; the median year is 103.7 mm (4.1 in).

Wettest five days (Rx5day) at Ravenna Lock 12 by year
Year	Wettest five days (Rx5day)
1923	45.7 mm (1.8 in)
1924	149.1 mm (5.9 in)
1925	110.8 mm (4.4 in)
1926	116.1 mm (4.6 in)
1927	84.7 mm (3.3 in)
1928	102.1 mm (4.0 in)
1929	99.8 mm (3.9 in)
1930	29.4 mm (1.2 in)
1931	79.4 mm (3.1 in)
1932	142.2 mm (5.6 in)
1933	112.0 mm (4.4 in)
1934	85.1 mm (3.4 in)
1935	106.4 mm (4.2 in)
1936	122.1 mm (4.8 in)
1937	121.5 mm (4.8 in)
1938	131.9 mm (5.2 in)
1939	114.0 mm (4.5 in)
1940	89.2 mm (3.5 in)
1941	84.1 mm (3.3 in)
1942	107.0 mm (4.2 in)
1943	101.8 mm (4.0 in)
1944	111.3 mm (4.4 in)
1945	95.7 mm (3.8 in)
1946	87.4 mm (3.4 in)
1947	96.5 mm (3.8 in)
1948	96.0 mm (3.8 in)
1949	109.2 mm (4.3 in)
1950	101.1 mm (4.0 in)
1951	105.9 mm (4.2 in)
1952	115.3 mm (4.5 in)
1953	99.6 mm (3.9 in)
1954	103.7 mm (4.1 in)
1955	147.3 mm (5.8 in)
1956	124.9 mm (4.9 in)
1957	127.5 mm (5.0 in)
1958	104.5 mm (4.1 in)
1959	62.9 mm (2.5 in)
1960	119.8 mm (4.7 in)
1961	119.6 mm (4.7 in)
1962	99.5 mm (3.9 in)
1963	87.7 mm (3.5 in)
1964	93.0 mm (3.7 in)
1965	92.5 mm (3.6 in)
1966	103.1 mm (4.1 in)
1967	91.7 mm (3.6 in)
1968	123.9 mm (4.9 in)
1969	98.9 mm (3.9 in)
1970	134.3 mm (5.3 in)
1971	83.4 mm (3.3 in)
1972	177.6 mm (7.0 in)
1973	124.2 mm (4.9 in)
1974	121.4 mm (4.8 in)
1975	116.7 mm (4.6 in)
1976	67.0 mm (2.6 in)
1977	84.1 mm (3.3 in)
1978	196.1 mm (7.7 in)
1979	121.2 mm (4.8 in)
1980	63.5 mm (2.5 in)
1981	82.8 mm (3.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ravenna Lock 12, 1923 to 1981. The record is 39 days in 1924, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Ravenna Lock 12 by year
Year	Longest dry spell (CDD)
1923	15 days
1924	39 days
1925	25 days
1926	16 days
1927	20 days
1928	31 days
1929	17 days
1930	22 days
1931	18 days
1932	17 days
1933	17 days
1934	16 days
1935	21 days
1936	22 days
1937	10 days
1938	21 days
1939	14 days
1940	13 days
1941	27 days
1942	17 days
1943	18 days
1944	17 days
1945	13 days
1946	22 days
1947	15 days
1948	15 days
1949	18 days
1950	16 days
1951	15 days
1952	23 days
1953	30 days
1954	15 days
1955	24 days
1956	16 days
1957	23 days
1958	23 days
1959	18 days
1960	23 days
1961	19 days
1962	18 days
1963	19 days
1964	19 days
1965	23 days
1966	15 days
1967	14 days
1968	18 days
1969	16 days
1970	21 days
1971	13 days
1972	10 days
1973	18 days
1974	15 days
1975	10 days
1976	14 days
1977	16 days
1978	11 days
1979	14 days
1980	15 days
1981	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.

Rainfall Return Levels

54 years, 1924 to 1978

A day with at least 62.8 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 136.6 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Ravenna Lock 12: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	62.8 mm (2.5 in)
5 years	81.2 mm (3.2 in)
10 years	93.9 mm (3.7 in)
25 years	110.5 mm (4.4 in)
50 years	123.4 mm (4.9 in)
100 years	136.6 mm (5.4 in)	Longer than the 54 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, 54 years of values from 1924 to 1978.

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: 143.5 mm (5.6 in) in 1955; 107.2 mm (4.2 in) in 1978; 106.2 mm (4.2 in) in 1949.

Download the Data

Data for Ravenna Lock 12 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ravenna Lock 12 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 2026-10-15 (15 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).