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Built 2026-10-16 (16 October 2026)

Keosauqua 2 Weather Records (USC00134394)

Record envelope, standing records and threshold days for Keosauqua 2 (USC00134394), Iowa, United States, with 43 years of record.

Key Facts for Keosauqua 2

  • Keosauqua 2 (USC00134394) is a weather station in Iowa, United States at 40.72 latitude and -91.95 longitude, 192 m (630 ft) above sea level.
  • The station reports from 1934 to 1976, 43 years of record.
  • 0 records set at Keosauqua 2 still stand.
  • Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
  • Keosauqua 2 set a daily record precipitation of 43.2 mm (1.7 in) on 14 June 1976.

About the Station

  • Location: Iowa, United States, 40.72 latitude, -91.95 longitude.
  • Elevation: 192 m (630 ft).
  • Period of record: 1934 to 1976, 43 years.
  • Eligible elements: prcp, snow.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Keosauqua 2, with 2026 drawn through them The band shows the record high and record low for each calendar day at Keosauqua 2. 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 Keosauqua 2. 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 Keosauqua 2, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Aprn/an/an/an/a
Mayn/an/an/an/a
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Octn/an/an/an/a
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Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Keosauqua 2 by the year they were set 0 records at Keosauqua 2 still stand. 00000000000
0 records at Keosauqua 2 still stand.
Standing records at Keosauqua 2 by the year they were set
Year setStanding records

Wettest Day of Each Month

Jun: 157.5 mm (6.2 in)
Record daily precipitation for each month at Keosauqua 2 The wettest day on record for each calendar month at Keosauqua 2. The most was 157.5 mm (6.2 in) on 18 June 1946. 050100150200 Jan: 33.0 mm (1.3 in), 5 January 1946 Jan Feb: 35.1 mm (1.4 in), 20 February 1953 Feb Mar: 55.9 mm (2.2 in), 25 March 1954 Mar Apr: 94.0 mm (3.7 in), 17 April 1964 Apr May: 88.9 mm (3.5 in), 24 May 1944 May Jun: 157.5 mm (6.2 in), 18 June 1946 Jun Jul: 132.1 mm (5.2 in), 21 July 1967 Jul Aug: 98.0 mm (3.9 in), 5 August 1970 Aug Sep: 132.1 mm (5.2 in), 21 September 1947 Sep Oct: 73.7 mm (2.9 in), 5 October 1954 Oct Nov: 45.7 mm (1.8 in), 3 November 1944 Nov Dec: 68.6 mm (2.7 in), 27 December 1942 Dec
The wettest day on record for each calendar month at Keosauqua 2. The most was 157.5 mm (6.2 in) on 18 June 1946.
Record daily precipitation for each month at Keosauqua 2
MonthRecord daily precipitation (mm)Date
Jan33.0 mm (1.3 in)5 January 1946
Feb35.1 mm (1.4 in)20 February 1953
Mar55.9 mm (2.2 in)25 March 1954
Apr94.0 mm (3.7 in)17 April 1964
May88.9 mm (3.5 in)24 May 1944
Jun157.5 mm (6.2 in)18 June 1946
Jul132.1 mm (5.2 in)21 July 1967
Aug98.0 mm (3.9 in)5 August 1970
Sep132.1 mm (5.2 in)21 September 1947
Oct73.7 mm (2.9 in)5 October 1954
Nov45.7 mm (1.8 in)3 November 1944
Dec68.6 mm (2.7 in)27 December 1942

Latest Records

20
Latest records at Keosauqua 2
DateStationRecordValueBeat old record byOld record stoodSignificance
14 June 1976Keosauqua 2, USdaily rain43.2 mm (1.7 in)13.7 mm (0.5 in)27 years20 of 100 (Routine)
11 June 1976Keosauqua 2, USdaily rain35.6 mm (1.4 in)12.7 mm (0.5 in)18 years17 of 100 (Routine)
6 May 1976Keosauqua 2, USdaily rain38.1 mm (1.5 in)15.2 mm (0.6 in)16 years21 of 100 (Routine)
24 April 1976Keosauqua 2, USdaily rain86.4 mm (3.4 in)54.6 mm (2.1 in)21 years50 of 100 (Notable)
5 March 1976Keosauqua 2, USdaily rain24.4 mm (1.0 in)4.6 mm (0.18 in)17 years14 of 100 (Routine)
1 March 1976Keosauqua 2, USdaily rain11.4 mm (0.4 in)7.6 mm (0.30 in)29 years20 of 100 (Routine)
14 December 1975Keosauqua 2, USdaily rain15.2 mm (0.6 in)14.9 mm (0.6 in)34 years20 of 100 (Routine)
30 November 1975Keosauqua 2, USdaily rain20.3 mm (0.8 in)1.2 mm (0.05 in)0 years5 of 100 (Routine)
27 November 1975Keosauqua 2, USdaily rain12.7 mm (0.5 in)6.3 mm (0.25 in)34 years20 of 100 (Routine)
26 May 1975Keosauqua 2, USdaily rain39.4 mm (1.6 in)6.4 mm (0.25 in)34 years19 of 100 (Routine)
21 May 1975Keosauqua 2, USdaily rain17.8 mm (0.7 in)3.6 mm (0.14 in)17 years12 of 100 (Routine)
18 April 1975Keosauqua 2, USdaily rain29.2 mm (1.1 in)11.4 mm (0.4 in)33 years23 of 100 (Routine)
7 March 1975Keosauqua 2, USdaily rain7.6 mm (0.30 in)1.2 mm (0.05 in)26 years13 of 100 (Routine)
24 February 1975Keosauqua 2, USdaily rain11.4 mm (0.4 in)3.8 mm (0.15 in)35 years20 of 100 (Routine)
17 February 1975Keosauqua 2, USdaily rain13.7 mm (0.5 in)1.0 mm (0.04 in)36 years16 of 100 (Routine)
9 February 1975Keosauqua 2, USdaily rain9.1 mm (0.36 in)1.2 mm (0.05 in)8 years8 of 100 (Routine)
31 January 1975Keosauqua 2, USdaily rain4.8 mm (0.19 in)0.5 mm (0.02 in)16 years9 of 100 (Routine)
11 January 1975Keosauqua 2, USdaily rain1.8 mm (0.07 in)0.5 mm (0.02 in)25 years11 of 100 (Routine)
30 November 1974Keosauqua 2, USdaily rain19.1 mm (0.8 in)11.0 mm (0.4 in)9 years17 of 100 (Routine)
11 November 1974Keosauqua 2, USdaily rain16.5 mm (0.6 in)3.0 mm (0.12 in)5 years7 of 100 (Routine)

Extremes by Year

1934 to 1976
Yearly extremes at Keosauqua 2: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)157.5 mm (6.2 in)194662.2 mm (2.4 in)41
Wettest five days (Rx5day)217.9 mm (8.6 in)194695.5 mm (3.8 in)41
Longest dry spell (CDD)60 days195225 days41

Wettest day (Rx1day)

Wettest day (Rx1day) at Keosauqua 2 by year The wettest day of the year at Keosauqua 2, 1934 to 1976. The record is 157.5 mm (6.2 in) in 1946, marked on the chart; the median year is 62.2 mm (2.4 in). 0501001502001940195019601970Record: 157.5 mm (6.2 in) in 1946
The wettest day of the year at Keosauqua 2, 1934 to 1976. The record is 157.5 mm (6.2 in) in 1946, marked on the chart; the median year is 62.2 mm (2.4 in).
Wettest day (Rx1day) at Keosauqua 2 by year
YearWettest day (Rx1day)
1934n/a
1935n/a
193661.0 mm (2.4 in)
193730.5 mm (1.2 in)
193844.5 mm (1.8 in)
193955.4 mm (2.2 in)
194082.0 mm (3.2 in)
194174.9 mm (2.9 in)
194268.6 mm (2.7 in)
194352.8 mm (2.1 in)
194488.9 mm (3.5 in)
194555.1 mm (2.2 in)
1946157.5 mm (6.2 in)
1947132.1 mm (5.2 in)
1948114.3 mm (4.5 in)
194959.9 mm (2.4 in)
195061.5 mm (2.4 in)
195176.2 mm (3.0 in)
1952104.1 mm (4.1 in)
195345.7 mm (1.8 in)
195473.7 mm (2.9 in)
195538.1 mm (1.5 in)
195633.8 mm (1.3 in)
195741.9 mm (1.6 in)
195862.2 mm (2.4 in)
1959127.5 mm (5.0 in)
196046.7 mm (1.8 in)
196186.4 mm (3.4 in)
196240.6 mm (1.6 in)
196346.7 mm (1.8 in)
196494.0 mm (3.7 in)
196566.0 mm (2.6 in)
196641.1 mm (1.6 in)
1967132.1 mm (5.2 in)
196881.3 mm (3.2 in)
196942.2 mm (1.7 in)
197098.0 mm (3.9 in)
197162.2 mm (2.4 in)
197245.7 mm (1.8 in)
197371.1 mm (2.8 in)
197464.8 mm (2.6 in)
197539.4 mm (1.6 in)
197686.4 mm (3.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Keosauqua 2 by year The wettest five days of the year at Keosauqua 2, 1934 to 1976. The record is 217.9 mm (8.6 in) in 1946, marked on the chart; the median year is 95.5 mm (3.8 in). 501001502002501940195019601970Record: 217.9 mm (8.6 in) in 1946
The wettest five days of the year at Keosauqua 2, 1934 to 1976. The record is 217.9 mm (8.6 in) in 1946, marked on the chart; the median year is 95.5 mm (3.8 in).
Wettest five days (Rx5day) at Keosauqua 2 by year
YearWettest five days (Rx5day)
1934n/a
1935n/a
1936104.2 mm (4.1 in)
193756.0 mm (2.2 in)
193892.8 mm (3.7 in)
193988.4 mm (3.5 in)
1940120.2 mm (4.7 in)
1941119.3 mm (4.7 in)
194273.7 mm (2.9 in)
194372.9 mm (2.9 in)
1944139.9 mm (5.5 in)
194589.7 mm (3.5 in)
1946217.9 mm (8.6 in)
1947132.1 mm (5.2 in)
1948152.1 mm (6.0 in)
1949125.3 mm (4.9 in)
195074.3 mm (2.9 in)
1951124.5 mm (4.9 in)
1952130.0 mm (5.1 in)
195355.9 mm (2.2 in)
195495.5 mm (3.8 in)
195557.1 mm (2.2 in)
195662.7 mm (2.5 in)
195775.2 mm (3.0 in)
1958126.8 mm (5.0 in)
1959177.8 mm (7.0 in)
196074.8 mm (2.9 in)
1961180.6 mm (7.1 in)
196285.6 mm (3.4 in)
196368.0 mm (2.7 in)
1964172.5 mm (6.8 in)
196599.5 mm (3.9 in)
196659.0 mm (2.3 in)
1967136.9 mm (5.4 in)
1968104.9 mm (4.1 in)
196989.9 mm (3.5 in)
1970177.8 mm (7.0 in)
197167.0 mm (2.6 in)
197263.0 mm (2.5 in)
1973142.0 mm (5.6 in)
197480.0 mm (3.1 in)
197554.9 mm (2.2 in)
1976104.6 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Keosauqua 2 by year The longest dry spell of the year at Keosauqua 2, 1934 to 1976. The record is 60 days in 1952, marked on the chart; the median year is 25 days. 02040601940195019601970Record: 60 days in 1952
The longest dry spell of the year at Keosauqua 2, 1934 to 1976. The record is 60 days in 1952, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Keosauqua 2 by year
YearLongest dry spell (CDD)
1934n/a
1935n/a
193623 days
193719 days
193819 days
193936 days
194038 days
194123 days
194233 days
194326 days
194427 days
194520 days
194622 days
194743 days
194832 days
194920 days
195031 days
195119 days
195260 days
195324 days
195446 days
195529 days
195629 days
195724 days
195826 days
195920 days
196023 days
196116 days
196221 days
196333 days
196435 days
196519 days
196626 days
196729 days
196827 days
196936 days
197020 days
197125 days
197223 days
197315 days
197425 days
197525 days
197614 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

36 years, 1938 to 1975

A day with at least 63.7 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 194.7 mm (7.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Keosauqua 2: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years63.7 mm (2.5 in)
5 years91.5 mm (3.6 in)
10 years112.5 mm (4.4 in)
25 years142.5 mm (5.6 in)
50 years167.4 mm (6.6 in)Longer than the 36 years of record
100 years194.7 mm (7.7 in)Longer than the 36 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, 36 years of values from 1938 to 1975.

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: 157.5 mm (6.2 in) in 1946; 132.1 mm (5.2 in) in 1947; 132.1 mm (5.2 in) in 1967.

Download the Data

  • Data for Keosauqua 2 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Keosauqua 2 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).