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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Boston 6 SW Weather Records (USC00150875)

Record envelope, standing records and threshold days for Boston 6 SW (USC00150875), Kentucky, United States, with 35 years of record.

Key Facts for Boston 6 SW

  • Boston 6 SW (USC00150875) is a weather station in Kentucky, United States at 37.74 latitude and -85.75 longitude, 259 m (850 ft) above sea level.
  • The station reports from 1978 to 2012, 35 years of record.
  • 0 records set at Boston 6 SW still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Boston 6 SW set a daily record precipitation of 13.5 mm (0.5 in) on 29 February 2012.

About the Station

  • Location: Kentucky, United States, 37.74 latitude, -85.75 longitude.
  • Elevation: 259 m (850 ft).
  • Period of record: 1978 to 2012, 35 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Boston 6 SW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Boston 6 SW. 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 Boston 6 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 Boston 6 SW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Mayn/an/an/an/a
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Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Boston 6 SW by the year they were set 0 records at Boston 6 SW still stand. 00000000000
0 records at Boston 6 SW still stand.
Standing records at Boston 6 SW by the year they were set
Year setStanding records

Wettest Day of Each Month

Sep: 186.4 mm (7.3 in)
Record daily precipitation for each month at Boston 6 SW The wettest day on record for each calendar month at Boston 6 SW. The most was 186.4 mm (7.3 in) on 23 September 2006. 050100150200 Jan: 76.7 mm (3.0 in), 11 January 2008 Jan Feb: 134.6 mm (5.3 in), 14 February 1989 Feb Mar: 126.0 mm (5.0 in), 2 March 1997 Mar Apr: 115.6 mm (4.6 in), 12 April 2011 Apr May: 86.6 mm (3.4 in), 3 May 2011 May Jun: 107.2 mm (4.2 in), 24 June 1979 Jun Jul: 128.0 mm (5.0 in), 4 July 1984 Jul Aug: 95.3 mm (3.8 in), 21 August 2007 Aug Sep: 186.4 mm (7.3 in), 23 September 2006 Sep Oct: 144.5 mm (5.7 in), 23 October 2007 Oct Nov: 71.9 mm (2.8 in), 19 November 1988 Nov Dec: 84.3 mm (3.3 in), 3 December 1991 Dec
The wettest day on record for each calendar month at Boston 6 SW. The most was 186.4 mm (7.3 in) on 23 September 2006.
Record daily precipitation for each month at Boston 6 SW
MonthRecord daily precipitation (mm)Date
Jan76.7 mm (3.0 in)11 January 2008
Feb134.6 mm (5.3 in)14 February 1989
Mar126.0 mm (5.0 in)2 March 1997
Apr115.6 mm (4.6 in)12 April 2011
May86.6 mm (3.4 in)3 May 2011
Jun107.2 mm (4.2 in)24 June 1979
Jul128.0 mm (5.0 in)4 July 1984
Aug95.3 mm (3.8 in)21 August 2007
Sep186.4 mm (7.3 in)23 September 2006
Oct144.5 mm (5.7 in)23 October 2007
Nov71.9 mm (2.8 in)19 November 1988
Dec84.3 mm (3.3 in)3 December 1991

Latest Records

20
Latest records at Boston 6 SW
DateStationRecordValueBeat old record byOld record stoodSignificance
29 February 2012Boston 6 SW, USdaily rain13.5 mm (0.5 in)11.0 mm (0.4 in)28 years18 of 100 (Routine)
26 January 2012Boston 6 SW, USdaily rain32.5 mm (1.3 in)11.2 mm (0.4 in)8 years14 of 100 (Routine)
27 December 2011Boston 6 SW, USdaily rain17.5 mm (0.7 in)2.5 mm (0.10 in)24 years11 of 100 (Routine)
6 December 2011Boston 6 SW, USdaily rain50.8 mm (2.0 in)39.6 mm (1.6 in)26 years38 of 100 (Notable)
29 November 2011Boston 6 SW, USdaily rain45.7 mm (1.8 in)11.7 mm (0.5 in)9 years15 of 100 (Routine)
26 September 2011Boston 6 SW, USdaily rain34.3 mm (1.4 in)13.0 mm (0.5 in)10 years11 of 100 (Routine)
7 September 2011Boston 6 SW, USdaily rain19.6 mm (0.8 in)14.8 mm (0.6 in)1 year9 of 100 (Routine)
5 September 2011Boston 6 SW, USdaily rain27.4 mm (1.1 in)17.0 mm (0.7 in)18 years14 of 100 (Routine)
15 August 2011Boston 6 SW, USdaily rain10.9 mm (0.4 in)3.0 mm (0.12 in)18 years10 of 100 (Routine)
25 July 2011Boston 6 SW, USdaily rain64.5 mm (2.5 in)50.5 mm (2.0 in)32 years39 of 100 (Notable)
16 June 2011Boston 6 SW, USdaily rain41.9 mm (1.6 in)11.2 mm (0.4 in)1 year11 of 100 (Routine)
23 May 2011Boston 6 SW, USdaily rain30.0 mm (1.2 in)6.6 mm (0.26 in)25 years14 of 100 (Routine)
3 May 2011Boston 6 SW, USmonthly rain86.6 mm (3.4 in)0.7 mm (0.03 in)29 years21 of 100 (Routine)
27 April 2011Boston 6 SW, USdaily rain69.1 mm (2.7 in)38.4 mm (1.5 in)12 years34 of 100 (Routine)
23 April 2011Boston 6 SW, USdaily rain57.9 mm (2.3 in)34.8 mm (1.4 in)29 years36 of 100 (Notable)
12 April 2011Boston 6 SW, USmonthly rain115.6 mm (4.6 in)1.8 mm (0.07 in)3 years14 of 100 (Routine)
9 March 2011Boston 6 SW, USdaily rain40.6 mm (1.6 in)12.4 mm (0.5 in)16 years16 of 100 (Routine)
25 February 2011Boston 6 SW, USdaily rain64.5 mm (2.5 in)37.6 mm (1.5 in)4 years29 of 100 (Routine)
8 February 2011Boston 6 SW, USdaily rain13.7 mm (0.5 in)5.3 mm (0.21 in)13 years10 of 100 (Routine)
26 January 2011Boston 6 SW, USdaily snow depth (Tie)5.1 cm (2.0 in)tie25 years2 of 100 (Routine)

Extremes by Year

1978 to 2012
Yearly extremes at Boston 6 SW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)186.4 mm (7.3 in)200673.2 mm (2.9 in)35
Wettest five days (Rx5day)249.2 mm (9.8 in)1989127.8 mm (5.0 in)35
Longest dry spell (CDD)41 days199918 days35

Wettest day (Rx1day)

Wettest day (Rx1day) at Boston 6 SW by year The wettest day of the year at Boston 6 SW, 1978 to 2012. The record is 186.4 mm (7.3 in) in 2006, marked on the chart; the median year is 73.2 mm (2.9 in). 0501001502001980199020002010Record: 186.4 mm (7.3 in) in 2006
The wettest day of the year at Boston 6 SW, 1978 to 2012. The record is 186.4 mm (7.3 in) in 2006, marked on the chart; the median year is 73.2 mm (2.9 in).
Wettest day (Rx1day) at Boston 6 SW by year
YearWettest day (Rx1day)
197890.2 mm (3.6 in)
1979162.1 mm (6.4 in)
198084.1 mm (3.3 in)
198185.9 mm (3.4 in)
198252.1 mm (2.1 in)
198367.1 mm (2.6 in)
1984128.0 mm (5.0 in)
198546.7 mm (1.8 in)
198646.5 mm (1.8 in)
198779.2 mm (3.1 in)
198871.9 mm (2.8 in)
1989134.6 mm (5.3 in)
199076.7 mm (3.0 in)
199184.3 mm (3.3 in)
199273.2 mm (2.9 in)
199351.8 mm (2.0 in)
199440.4 mm (1.6 in)
199563.5 mm (2.5 in)
199670.4 mm (2.8 in)
1997126.0 mm (5.0 in)
199849.8 mm (2.0 in)
199965.8 mm (2.6 in)
200056.1 mm (2.2 in)
200166.5 mm (2.6 in)
2002119.4 mm (4.7 in)
200364.0 mm (2.5 in)
200491.2 mm (3.6 in)
200585.9 mm (3.4 in)
2006186.4 mm (7.3 in)
2007144.5 mm (5.7 in)
2008113.8 mm (4.5 in)
200943.9 mm (1.7 in)
201066.8 mm (2.6 in)
2011115.6 mm (4.6 in)
201232.5 mm (1.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Boston 6 SW by year The wettest five days of the year at Boston 6 SW, 1978 to 2012. The record is 249.2 mm (9.8 in) in 1989, marked on the chart; the median year is 127.8 mm (5.0 in). 501001502002501980199020002010Record: 249.2 mm (9.8 in) in 1989
The wettest five days of the year at Boston 6 SW, 1978 to 2012. The record is 249.2 mm (9.8 in) in 1989, marked on the chart; the median year is 127.8 mm (5.0 in).
Wettest five days (Rx5day) at Boston 6 SW by year
YearWettest five days (Rx5day)
1978119.1 mm (4.7 in)
1979162.1 mm (6.4 in)
1980107.2 mm (4.2 in)
1981116.9 mm (4.6 in)
1982111.1 mm (4.4 in)
1983222.0 mm (8.7 in)
1984174.0 mm (6.9 in)
198565.0 mm (2.6 in)
198686.8 mm (3.4 in)
1987130.8 mm (5.1 in)
1988120.5 mm (4.7 in)
1989249.2 mm (9.8 in)
1990127.8 mm (5.0 in)
1991117.8 mm (4.6 in)
199299.8 mm (3.9 in)
199385.9 mm (3.4 in)
199484.3 mm (3.3 in)
1995132.6 mm (5.2 in)
1996130.0 mm (5.1 in)
1997212.4 mm (8.4 in)
199895.8 mm (3.8 in)
199969.6 mm (2.7 in)
200079.0 mm (3.1 in)
2001131.3 mm (5.2 in)
2002128.3 mm (5.1 in)
2003111.5 mm (4.4 in)
2004143.7 mm (5.7 in)
2005166.2 mm (6.5 in)
2006201.4 mm (7.9 in)
2007245.4 mm (9.7 in)
2008135.2 mm (5.3 in)
200981.5 mm (3.2 in)
2010133.1 mm (5.2 in)
2011189.0 mm (7.4 in)
201258.1 mm (2.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Boston 6 SW by year The longest dry spell of the year at Boston 6 SW, 1978 to 2012. The record is 41 days in 1999, marked on the chart; the median year is 18 days. 10203040501980199020002010Record: 41 days in 1999
The longest dry spell of the year at Boston 6 SW, 1978 to 2012. The record is 41 days in 1999, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Boston 6 SW by year
YearLongest dry spell (CDD)
197815 days
197915 days
198024 days
198113 days
198220 days
198318 days
198414 days
198513 days
198619 days
198714 days
198831 days
198915 days
199013 days
199117 days
199220 days
199318 days
199417 days
199521 days
199619 days
199719 days
199840 days
199941 days
200027 days
200116 days
200218 days
200315 days
200425 days
200524 days
200615 days
200723 days
200823 days
200916 days
201024 days
201118 days
201210 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, 1979 to 2011

A day with at least 76.4 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 226.5 mm (8.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Boston 6 SW: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years76.4 mm (3.0 in)
5 years108.6 mm (4.3 in)
10 years132.8 mm (5.2 in)
25 years167.1 mm (6.6 in)
50 years195.5 mm (7.7 in)Longer than the 33 years of record
100 years226.5 mm (8.9 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 1979 to 2011.

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: 186.4 mm (7.3 in) in 2006; 162.1 mm (6.4 in) in 1979; 144.5 mm (5.7 in) in 2007.

Download the Data

  • Data for Boston 6 SW standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Boston 6 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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