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Built 2026-10-17 (17 October 2026)

Cahaba Pump House Weather Records (USC00011225)

Record envelope, standing records and threshold days for Cahaba Pump House (USC00011225), Alabama, United States, with 46 years of record.

Key Facts for Cahaba Pump House

  • Cahaba Pump House (USC00011225) is a weather station in Alabama, United States at 33.45 latitude and -86.72 longitude, 140 m (459 ft) above sea level.
  • The station reports from 1981 to 2026, 46 years of record.
  • 0 records set at Cahaba Pump House still stand.
  • Records are tracked for prcp, snwd: an element needs 30 years of data to be eligible.
  • Cahaba Pump House set a daily record precipitation of 51.3 mm (2.0 in) on 12 March 2026.

About the Station

  • Location: Alabama, United States, 33.45 latitude, -86.72 longitude.
  • Elevation: 140 m (459 ft).
  • Period of record: 1981 to 2026, 46 years.
  • Eligible elements: prcp, snwd.

Daily Record Envelope and 2026

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

Which Years Hold Standing Records

0 standing records
Standing records at Cahaba Pump House by the year they were set 0 records at Cahaba Pump House still stand. 00000000000
0 records at Cahaba Pump House still stand.
Standing records at Cahaba Pump House by the year they were set
Year setStanding records

Wettest Day of Each Month

Sep: 188.0 mm (7.4 in)
Record daily precipitation for each month at Cahaba Pump House The wettest day on record for each calendar month at Cahaba Pump House. The most was 188.0 mm (7.4 in) on 17 September 2004. 050100150200 Jan: 109.0 mm (4.3 in), 27 January 1996 Jan Feb: 111.8 mm (4.4 in), 13 February 2025 Feb Mar: 105.2 mm (4.1 in), 4 March 1989 Mar Apr: 139.7 mm (5.5 in), 7 April 2014 Apr May: 142.2 mm (5.6 in), 5 May 2021 May Jun: 122.4 mm (4.8 in), 20 June 2021 Jun Jul: 96.5 mm (3.8 in), 11 July 2013 Jul Aug: 107.2 mm (4.2 in), 26 August 2008 Aug Sep: 188.0 mm (7.4 in), 17 September 2004 Sep Oct: 121.9 mm (4.8 in), 4 October 1995 Oct Nov: 138.9 mm (5.5 in), 17 November 2014 Nov Dec: 167.6 mm (6.6 in), 1 December 1982 Dec
The wettest day on record for each calendar month at Cahaba Pump House. The most was 188.0 mm (7.4 in) on 17 September 2004.
Record daily precipitation for each month at Cahaba Pump House
MonthRecord daily precipitation (mm)Date
Jan109.0 mm (4.3 in)27 January 1996
Feb111.8 mm (4.4 in)13 February 2025
Mar105.2 mm (4.1 in)4 March 1989
Apr139.7 mm (5.5 in)7 April 2014
May142.2 mm (5.6 in)5 May 2021
Jun122.4 mm (4.8 in)20 June 2021
Jul96.5 mm (3.8 in)11 July 2013
Aug107.2 mm (4.2 in)26 August 2008
Sep188.0 mm (7.4 in)17 September 2004
Oct121.9 mm (4.8 in)4 October 1995
Nov138.9 mm (5.5 in)17 November 2014
Dec167.6 mm (6.6 in)1 December 1982

Latest Records

20
Latest records at Cahaba Pump House
DateStationRecordValueBeat old record byOld record stoodSignificance
12 March 2026Cahaba Pump House, USdaily rain51.3 mm (2.0 in)22.9 mm (0.9 in)4 years18 of 100 (Routine)
26 November 2025Cahaba Pump House, USdaily rain52.1 mm (2.1 in)17.8 mm (0.7 in)12 years15 of 100 (Routine)
26 May 2025Cahaba Pump House, USdaily rain43.4 mm (1.7 in)10.4 mm (0.4 in)32 years18 of 100 (Routine)
13 February 2025Cahaba Pump House, USmonthly rain111.8 mm (4.4 in)9.7 mm (0.38 in)5 years20 of 100 (Routine)
10 January 2025Cahaba Pump House, USall-time snow depth (Tie)5.1 cm (2.0 in)tie41 years9 of 100 (Routine)
20 November 2024Cahaba Pump House, USdaily rain55.9 mm (2.2 in)38.9 mm (1.5 in)42 years35 of 100 (Notable)
25 July 2024Cahaba Pump House, USdaily rain42.7 mm (1.7 in)22.1 mm (0.9 in)28 years25 of 100 (Routine)
10 May 2024Cahaba Pump House, USdaily rain53.3 mm (2.1 in)31.2 mm (1.2 in)18 years26 of 100 (Routine)
12 February 2024Cahaba Pump House, USdaily rain49.5 mm (1.9 in)15.0 mm (0.6 in)0 years12 of 100 (Routine)
25 January 2024Cahaba Pump House, USdaily rain66.0 mm (2.6 in)15.2 mm (0.6 in)33 years23 of 100 (Routine)
27 March 2023Cahaba Pump House, USdaily rain47.0 mm (1.9 in)28.2 mm (1.1 in)17 years25 of 100 (Routine)
12 February 2023Cahaba Pump House, USdaily rain34.5 mm (1.4 in)1.0 mm (0.04 in)1 year4 of 100 (Routine)
30 November 2022Cahaba Pump House, USdaily rain109.2 mm (4.3 in)90.1 mm (3.5 in)1 year44 of 100 (Notable)
10 July 2022Cahaba Pump House, USdaily rain55.6 mm (2.2 in)11.1 mm (0.4 in)24 years17 of 100 (Routine)
8 June 2022Cahaba Pump House, USdaily rain114.3 mm (4.5 in)24.4 mm (1.0 in)0 years19 of 100 (Routine)
23 May 2022Cahaba Pump House, USdaily rain39.4 mm (1.6 in)21.1 mm (0.8 in)1 year15 of 100 (Routine)
31 March 2022Cahaba Pump House, USdaily rain51.3 mm (2.0 in)13.2 mm (0.5 in)16 years16 of 100 (Routine)
23 March 2022Cahaba Pump House, USdaily rain49.5 mm (1.9 in)19.0 mm (0.7 in)9 years16 of 100 (Routine)
12 March 2022Cahaba Pump House, USdaily rain28.4 mm (1.1 in)3.0 mm (0.12 in)36 years15 of 100 (Routine)
18 February 2022Cahaba Pump House, USdaily rain58.4 mm (2.3 in)17.3 mm (0.7 in)0 years13 of 100 (Routine)

Extremes by Year

1981 to 2026
Yearly extremes at Cahaba Pump House: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)188.0 mm (7.4 in)200490.1 mm (3.5 in)46
Wettest five days (Rx5day)252.7 mm (9.9 in)2001136.0 mm (5.4 in)46
Longest dry spell (CDD)70 days201623 days46

Wettest day (Rx1day)

Wettest day (Rx1day) at Cahaba Pump House by year The wettest day of the year at Cahaba Pump House, 1981 to 2026. The record is 188.0 mm (7.4 in) in 2004, marked on the chart; the median year is 90.1 mm (3.5 in). 0501001502001990200020102020Record: 188.0 mm (7.4 in) in 2004
The wettest day of the year at Cahaba Pump House, 1981 to 2026. The record is 188.0 mm (7.4 in) in 2004, marked on the chart; the median year is 90.1 mm (3.5 in).
Wettest day (Rx1day) at Cahaba Pump House by year
YearWettest day (Rx1day)
198150.8 mm (2.0 in)
1982167.6 mm (6.6 in)
1983165.1 mm (6.5 in)
198465.0 mm (2.6 in)
198590.7 mm (3.6 in)
198690.9 mm (3.6 in)
198786.4 mm (3.4 in)
198851.3 mm (2.0 in)
1989105.2 mm (4.1 in)
199088.9 mm (3.5 in)
1991101.6 mm (4.0 in)
199262.7 mm (2.5 in)
199353.6 mm (2.1 in)
199463.8 mm (2.5 in)
1995121.9 mm (4.8 in)
1996109.0 mm (4.3 in)
199755.4 mm (2.2 in)
199882.0 mm (3.2 in)
199968.1 mm (2.7 in)
200073.4 mm (2.9 in)
2001101.6 mm (4.0 in)
2002127.0 mm (5.0 in)
2003100.3 mm (3.9 in)
2004188.0 mm (7.4 in)
200595.0 mm (3.7 in)
200689.9 mm (3.5 in)
200780.0 mm (3.1 in)
2008107.2 mm (4.2 in)
200992.5 mm (3.6 in)
201090.2 mm (3.6 in)
201181.3 mm (3.2 in)
201262.2 mm (2.4 in)
201396.5 mm (3.8 in)
2014139.7 mm (5.5 in)
201576.2 mm (3.0 in)
201674.9 mm (2.9 in)
201763.5 mm (2.5 in)
2018104.1 mm (4.1 in)
201966.0 mm (2.6 in)
2020102.1 mm (4.0 in)
2021142.2 mm (5.6 in)
2022114.3 mm (4.5 in)
202347.0 mm (1.9 in)
202466.0 mm (2.6 in)
2025111.8 mm (4.4 in)
202651.3 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Cahaba Pump House by year The wettest five days of the year at Cahaba Pump House, 1981 to 2026. The record is 252.7 mm (9.9 in) in 2001, marked on the chart; the median year is 136.0 mm (5.4 in). 01002003001990200020102020Record: 252.7 mm (9.9 in) in 2001
The wettest five days of the year at Cahaba Pump House, 1981 to 2026. The record is 252.7 mm (9.9 in) in 2001, marked on the chart; the median year is 136.0 mm (5.4 in).
Wettest five days (Rx5day) at Cahaba Pump House by year
YearWettest five days (Rx5day)
198150.8 mm (2.0 in)
1982215.1 mm (8.5 in)
1983242.6 mm (9.6 in)
198494.8 mm (3.7 in)
1985167.1 mm (6.6 in)
1986153.9 mm (6.1 in)
1987136.9 mm (5.4 in)
1988106.9 mm (4.2 in)
1989113.6 mm (4.5 in)
1990122.9 mm (4.8 in)
1991164.9 mm (6.5 in)
1992123.2 mm (4.9 in)
199392.4 mm (3.6 in)
199468.9 mm (2.7 in)
1995149.9 mm (5.9 in)
1996132.1 mm (5.2 in)
1997135.1 mm (5.3 in)
1998104.7 mm (4.1 in)
1999179.9 mm (7.1 in)
2000166.4 mm (6.6 in)
2001252.7 mm (9.9 in)
2002194.0 mm (7.6 in)
2003181.1 mm (7.1 in)
2004199.7 mm (7.9 in)
2005111.3 mm (4.4 in)
2006126.7 mm (5.0 in)
2007104.4 mm (4.1 in)
2008231.2 mm (9.1 in)
2009124.5 mm (4.9 in)
2010129.3 mm (5.1 in)
2011143.3 mm (5.6 in)
2012131.8 mm (5.2 in)
2013148.5 mm (5.8 in)
2014158.0 mm (6.2 in)
2015119.6 mm (4.7 in)
201674.9 mm (2.9 in)
2017139.3 mm (5.5 in)
2018123.2 mm (4.9 in)
2019148.5 mm (5.8 in)
2020150.9 mm (5.9 in)
2021216.1 mm (8.5 in)
2022162.3 mm (6.4 in)
202347.0 mm (1.9 in)
2024131.2 mm (5.2 in)
2025163.1 mm (6.4 in)
202627.9 mm (1.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Cahaba Pump House by year The longest dry spell of the year at Cahaba Pump House, 1981 to 2026. The record is 70 days in 2016, marked on the chart; the median year is 23 days. 0204060801990200020102020Record: 70 days in 2016
The longest dry spell of the year at Cahaba Pump House, 1981 to 2026. The record is 70 days in 2016, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Cahaba Pump House by year
YearLongest dry spell (CDD)
198112 days
198222 days
198322 days
198426 days
198527 days
198624 days
198743 days
198824 days
198917 days
199014 days
199135 days
199221 days
199324 days
199417 days
199523 days
199617 days
199726 days
199843 days
199926 days
200039 days
200131 days
200223 days
200318 days
200422 days
200526 days
200621 days
200732 days
200815 days
200911 days
201020 days
201123 days
201221 days
201310 days
201426 days
201515 days
201670 days
201724 days
201819 days
201923 days
202015 days
202113 days
202230 days
202329 days
202432 days
202525 days
20267 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

38 years, 1982 to 2022

A day with at least 87.8 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 211.9 mm (8.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Cahaba Pump House: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years87.8 mm (3.5 in)
5 years116.8 mm (4.6 in)
10 years137.6 mm (5.4 in)
25 years165.8 mm (6.5 in)
50 years188.3 mm (7.4 in)Longer than the 38 years of record
100 years211.9 mm (8.3 in)Longer than the 38 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, 38 years of values from 1982 to 2022.

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: 188.0 mm (7.4 in) in 2004; 167.6 mm (6.6 in) in 1982; 165.1 mm (6.5 in) in 1983.

Download the Data

  • Data for Cahaba Pump House standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Cahaba Pump House 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 . Last revised (2026-10-12).