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Built 2026-10-19 (19 October 2026)

Grant Dam 38 Weather Records (USC00153358)

Record envelope, standing records and threshold days for Grant Dam 38 (USC00153358), Kentucky, United States, with 39 years of record.

Key Facts for Grant Dam 38

  • Grant Dam 38 (USC00153358) is a weather station in Kentucky, United States at 38.98 latitude and -84.83 longitude, 153 m (502 ft) above sea level.
  • The station reports from 1924 to 1962, 39 years of record.
  • 0 records set at Grant Dam 38 still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Grant Dam 38 set a daily record precipitation of 31.8 mm (1.3 in) on 3 October 1962.

About the Station

  • Location: Kentucky, United States, 38.98 latitude, -84.83 longitude.
  • Elevation: 153 m (502 ft).
  • Period of record: 1924 to 1962, 39 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Grant Dam 38, with 2026 drawn through them The band shows the record high and record low for each calendar day at Grant Dam 38. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Grant Dam 38. 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 Grant Dam 38, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Grant Dam 38 by the year they were set 0 records at Grant Dam 38 still stand. 00000000000
0 records at Grant Dam 38 still stand.
Standing records at Grant Dam 38 by the year they were set
Year setStanding records

All-Time Record Progression

1 new records
When Grant Dam 38 set new all-time records 1 all-time records were set at Grant Dam 38 between 23 June 1960 and 23 June 1960. Each dot is a new record. Record daily precipitation23 June 1960: Record daily precipitation 116.3 mm (4.6 in)1960
1 all-time records were set at Grant Dam 38 between 23 June 1960 and 23 June 1960. Each dot is a new record.
When Grant Dam 38 set new all-time records
DateKindDetail
1960-06-23Record daily precipitationRecord daily precipitation 116.3 mm (4.6 in)

Wettest Day of Each Month

Jun: 116.3 mm (4.6 in)
Record daily precipitation for each month at Grant Dam 38 The wettest day on record for each calendar month at Grant Dam 38. The most was 116.3 mm (4.6 in) on 23 June 1960. 050100150 Jan: 77.7 mm (3.1 in), 22 January 1959 Jan Feb: 60.5 mm (2.4 in), 9 February 1950 Feb Mar: 66.5 mm (2.6 in), 6 March 1945 Mar Apr: 81.3 mm (3.2 in), 16 April 1939 Apr May: 71.9 mm (2.8 in), 8 May 1961 May Jun: 116.3 mm (4.6 in), 23 June 1960 Jun Jul: 107.4 mm (4.2 in), 16 July 1962 Jul Aug: 86.6 mm (3.4 in), 3 August 1932 Aug Sep: 59.7 mm (2.4 in), 3 September 1932 Sep Oct: 91.4 mm (3.6 in), 2 October 1945 Oct Nov: 102.4 mm (4.0 in), 6 November 1948 Nov Dec: 74.2 mm (2.9 in), 15 December 1948 Dec
The wettest day on record for each calendar month at Grant Dam 38. The most was 116.3 mm (4.6 in) on 23 June 1960.
Record daily precipitation for each month at Grant Dam 38
MonthRecord daily precipitation (mm)Date
Jan77.7 mm (3.1 in)22 January 1959
Feb60.5 mm (2.4 in)9 February 1950
Mar66.5 mm (2.6 in)6 March 1945
Apr81.3 mm (3.2 in)16 April 1939
May71.9 mm (2.8 in)8 May 1961
Jun116.3 mm (4.6 in)23 June 1960
Jul107.4 mm (4.2 in)16 July 1962
Aug86.6 mm (3.4 in)3 August 1932
Sep59.7 mm (2.4 in)3 September 1932
Oct91.4 mm (3.6 in)2 October 1945
Nov102.4 mm (4.0 in)6 November 1948
Dec74.2 mm (2.9 in)15 December 1948

Latest Records

20
Latest records at Grant Dam 38
DateStationRecordValueBeat old record byOld record stoodSignificance
3 October 1962Grant Dam 38, USdaily rain31.8 mm (1.3 in)10.5 mm (0.4 in)24 years20 of 100 (Routine)
1 September 1962Grant Dam 38, USdaily rain28.7 mm (1.1 in)15.0 mm (0.6 in)0 years16 of 100 (Routine)
26 August 1962Grant Dam 38, USdaily rain12.7 mm (0.5 in)3.0 mm (0.12 in)31 years14 of 100 (Routine)
16 July 1962Grant Dam 38, USmonthly rain107.4 mm (4.2 in)15.7 mm (0.6 in)37 years36 of 100 (Notable)
15 July 1962Grant Dam 38, USdaily rain36.8 mm (1.4 in)10.4 mm (0.4 in)9 years13 of 100 (Routine)
24 June 1962Grant Dam 38, USdaily rain31.2 mm (1.2 in)19.0 mm (0.7 in)4 years19 of 100 (Routine)
27 May 1962Grant Dam 38, USdaily rain35.1 mm (1.4 in)10.5 mm (0.4 in)1 year13 of 100 (Routine)
11 May 1962Grant Dam 38, USdaily rain (Tie)20.3 mm (0.8 in)tie9 years1 of 100 (Routine)
1 May 1962Grant Dam 38, USdaily rain14.7 mm (0.6 in)5.6 mm (0.22 in)16 years12 of 100 (Routine)
21 March 1962Grant Dam 38, USdaily rain26.4 mm (1.0 in)0.2 mm (0.01 in)35 years13 of 100 (Routine)
9 March 1962Grant Dam 38, USdaily rain14.2 mm (0.6 in)3.8 mm (0.15 in)12 years9 of 100 (Routine)
28 February 1962Grant Dam 38, USdaily rain23.1 mm (0.9 in)6.1 mm (0.24 in)14 years13 of 100 (Routine)
24 February 1962Grant Dam 38, USdaily rain37.6 mm (1.5 in)31.5 mm (1.2 in)34 years46 of 100 (Notable)
17 December 1961Grant Dam 38, USdaily rain18.8 mm (0.7 in)2.0 mm (0.08 in)12 years8 of 100 (Routine)
23 November 1961Grant Dam 38, USdaily rain24.1 mm (0.9 in)1.2 mm (0.05 in)19 years9 of 100 (Routine)
1 October 1961Grant Dam 38, USdaily rain24.9 mm (1.0 in)17.3 mm (0.7 in)24 years20 of 100 (Routine)
7 September 1961Grant Dam 38, USdaily rain15.2 mm (0.6 in)3.5 mm (0.14 in)18 years11 of 100 (Routine)
1 September 1961Grant Dam 38, USdaily rain13.7 mm (0.5 in)2.8 mm (0.11 in)4 years6 of 100 (Routine)
25 August 1961Grant Dam 38, USdaily rain13.5 mm (0.5 in)2.1 mm (0.08 in)3 years4 of 100 (Routine)
16 July 1961Grant Dam 38, USdaily rain18.0 mm (0.7 in)0.5 mm (0.02 in)12 years6 of 100 (Routine)

Extremes by Year

1924 to 1962
Yearly extremes at Grant Dam 38: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)116.3 mm (4.6 in)196053.8 mm (2.1 in)39
Wettest five days (Rx5day)218.4 mm (8.6 in)193786.1 mm (3.4 in)39
Longest dry spell (CDD)34 days193419 days39

Wettest day (Rx1day)

Wettest day (Rx1day) at Grant Dam 38 by year The wettest day of the year at Grant Dam 38, 1924 to 1962. The record is 116.3 mm (4.6 in) in 1960, marked on the chart; the median year is 53.8 mm (2.1 in). 2550751001251930194019501960Record: 116.3 mm (4.6 in) in 1960
The wettest day of the year at Grant Dam 38, 1924 to 1962. The record is 116.3 mm (4.6 in) in 1960, marked on the chart; the median year is 53.8 mm (2.1 in).
Wettest day (Rx1day) at Grant Dam 38 by year
YearWettest day (Rx1day)
192451.8 mm (2.0 in)
192591.7 mm (3.6 in)
192651.3 mm (2.0 in)
192746.7 mm (1.8 in)
192833.5 mm (1.3 in)
192944.5 mm (1.8 in)
193036.6 mm (1.4 in)
193149.5 mm (1.9 in)
193286.6 mm (3.4 in)
193353.8 mm (2.1 in)
193433.3 mm (1.3 in)
193542.7 mm (1.7 in)
193642.9 mm (1.7 in)
193770.9 mm (2.8 in)
193874.9 mm (2.9 in)
193981.3 mm (3.2 in)
194064.3 mm (2.5 in)
194152.3 mm (2.1 in)
194247.0 mm (1.9 in)
194346.7 mm (1.8 in)
194436.1 mm (1.4 in)
194591.4 mm (3.6 in)
194654.6 mm (2.1 in)
194744.7 mm (1.8 in)
1948102.4 mm (4.0 in)
194955.9 mm (2.2 in)
195060.5 mm (2.4 in)
195153.8 mm (2.1 in)
195245.0 mm (1.8 in)
195364.8 mm (2.6 in)
195449.3 mm (1.9 in)
195566.3 mm (2.6 in)
195650.8 mm (2.0 in)
195756.6 mm (2.2 in)
195856.1 mm (2.2 in)
195977.7 mm (3.1 in)
1960116.3 mm (4.6 in)
196171.9 mm (2.8 in)
1962107.4 mm (4.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Grant Dam 38 by year The wettest five days of the year at Grant Dam 38, 1924 to 1962. The record is 218.4 mm (8.6 in) in 1937, marked on the chart; the median year is 86.1 mm (3.4 in). 01002003001930194019501960Record: 218.4 mm (8.6 in) in 1937
The wettest five days of the year at Grant Dam 38, 1924 to 1962. The record is 218.4 mm (8.6 in) in 1937, marked on the chart; the median year is 86.1 mm (3.4 in).
Wettest five days (Rx5day) at Grant Dam 38 by year
YearWettest five days (Rx5day)
19245.2 mm (0.20 in)
1925105.2 mm (4.1 in)
192679.2 mm (3.1 in)
192786.5 mm (3.4 in)
192871.4 mm (2.8 in)
192986.1 mm (3.4 in)
193054.5 mm (2.1 in)
193175.5 mm (3.0 in)
193295.0 mm (3.7 in)
193383.3 mm (3.3 in)
193455.9 mm (2.2 in)
193577.8 mm (3.1 in)
193673.0 mm (2.9 in)
1937218.4 mm (8.6 in)
193886.3 mm (3.4 in)
1939127.6 mm (5.0 in)
1940120.9 mm (4.8 in)
194158.1 mm (2.3 in)
194274.7 mm (2.9 in)
1943103.7 mm (4.1 in)
194458.4 mm (2.3 in)
1945137.1 mm (5.4 in)
194666.3 mm (2.6 in)
194771.6 mm (2.8 in)
1948127.5 mm (5.0 in)
1949108.2 mm (4.3 in)
1950114.9 mm (4.5 in)
195157.2 mm (2.3 in)
195259.1 mm (2.3 in)
195364.8 mm (2.6 in)
1954119.9 mm (4.7 in)
195586.3 mm (3.4 in)
195666.6 mm (2.6 in)
195791.4 mm (3.6 in)
195879.9 mm (3.1 in)
1959133.6 mm (5.3 in)
1960126.7 mm (5.0 in)
1961161.8 mm (6.4 in)
1962161.7 mm (6.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Grant Dam 38 by year The longest dry spell of the year at Grant Dam 38, 1924 to 1962. The record is 34 days in 1934, marked on the chart; the median year is 19 days. 0102030401930194019501960Record: 34 days in 1934
The longest dry spell of the year at Grant Dam 38, 1924 to 1962. The record is 34 days in 1934, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Grant Dam 38 by year
YearLongest dry spell (CDD)
19249 days
192516 days
192610 days
192718 days
192815 days
192925 days
193018 days
193118 days
193215 days
193324 days
193434 days
193516 days
193627 days
193716 days
193827 days
193923 days
194015 days
194114 days
194220 days
194319 days
194425 days
194520 days
194617 days
194720 days
194819 days
194915 days
195015 days
195116 days
195222 days
195326 days
195414 days
195528 days
195622 days
195723 days
195831 days
195916 days
196025 days
196119 days
196218 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

33 years, 1925 to 1961

A day with at least 56.2 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 136.8 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Grant Dam 38: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years56.2 mm (2.2 in)
5 years74.2 mm (2.9 in)
10 years87.4 mm (3.4 in)
25 years105.8 mm (4.2 in)
50 years120.7 mm (4.8 in)Longer than the 33 years of record
100 years136.8 mm (5.4 in)Longer than the 33 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, 33 years of values from 1925 to 1961.

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: 116.3 mm (4.6 in) in 1960; 102.4 mm (4.0 in) in 1948; 91.7 mm (3.6 in) in 1925.

Download the Data

  • Data for Grant Dam 38 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Grant Dam 38 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 . Last revised (2025-12-31).