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Built 2026-10-17 (17 October 2026)

Augusta Weather Records (USC00130389)

Record envelope, standing records and threshold days for Augusta (USC00130389), Iowa, United States, with 91 years of record.

Key Facts for Augusta

  • Augusta (USC00130389) is a weather station in Iowa, United States at 40.75 latitude and -91.28 longitude, 192 m (629 ft) above sea level.
  • The station reports from 1936 to 2026, 91 years of record.
  • 0 records set at Augusta still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Augusta set a daily record precipitation of 24.6 mm (1.0 in) on 16 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Iowa, United States, 40.75 latitude, -91.28 longitude.
  • Elevation: 192 m (629 ft).
  • Period of record: 1936 to 2026, 91 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 Augusta, with 2026 drawn through them The band shows the record high and record low for each calendar day at Augusta. 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 Augusta. 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 Augusta, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

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

Wettest Day of Each Month

Sep: 109.2 mm (4.3 in)
Record daily precipitation for each month at Augusta The wettest day on record for each calendar month at Augusta. The most was 109.2 mm (4.3 in) on 14 September 1961. 050100150 Jan: 64.5 mm (2.5 in), 24 January 1938 Jan Feb: 62.2 mm (2.4 in), 20 February 2018 Feb Mar: 82.6 mm (3.3 in), 14 March 2024 Mar Apr: 85.1 mm (3.4 in), 24 April 1950 Apr May: 108.7 mm (4.3 in), 19 May 1974 May Jun: 78.7 mm (3.1 in), 16 June 1945 Jun Jul: 101.6 mm (4.0 in), 26 July 2025 Jul Aug: 107.4 mm (4.2 in), 5 August 1970 Aug Sep: 109.2 mm (4.3 in), 14 September 1961 Sep Oct: 73.9 mm (2.9 in), 3 October 1941 Oct Nov: 51.8 mm (2.0 in), 4 November 2018 Nov Dec: 50.8 mm (2.0 in), 15 December 1971 Dec
The wettest day on record for each calendar month at Augusta. The most was 109.2 mm (4.3 in) on 14 September 1961.
Record daily precipitation for each month at Augusta
MonthRecord daily precipitation (mm)Date
Jan64.5 mm (2.5 in)24 January 1938
Feb62.2 mm (2.4 in)20 February 2018
Mar82.6 mm (3.3 in)14 March 2024
Apr85.1 mm (3.4 in)24 April 1950
May108.7 mm (4.3 in)19 May 1974
Jun78.7 mm (3.1 in)16 June 1945
Jul101.6 mm (4.0 in)26 July 2025
Aug107.4 mm (4.2 in)5 August 1970
Sep109.2 mm (4.3 in)14 September 1961
Oct73.9 mm (2.9 in)3 October 1941
Nov51.8 mm (2.0 in)4 November 2018
Dec50.8 mm (2.0 in)15 December 1971

Latest Records

20
Latest records at Augusta
DateStationRecordValueBeat old record byOld record stoodSignificance
16 September 2026Augusta, USdaily rain (Provisional)24.6 mm (1.0 in)10.6 mm (0.4 in)57 years20 of 100 (Routine)
19 August 2026Augusta, USdaily rain (Provisional)37.3 mm (1.5 in)17.5 mm (0.7 in)48 years32 of 100 (Routine)
1 August 2026Augusta, USdaily rain48.3 mm (1.9 in)10.2 mm (0.4 in)69 years34 of 100 (Routine)
21 July 2026Augusta, USdaily rain (Tie)27.9 mm (1.1 in)tie52 years6 of 100 (Routine)
17 June 2026Augusta, USdaily rain54.6 mm (2.1 in)33.5 mm (1.3 in)69 years53 of 100 (Notable)
15 December 2025Augusta, USdaily snow depth17.8 cm (7.0 in)2.6 cm (1.0 in)74 years35 of 100 (Notable)
14 December 2025Augusta, USmonthly snow depth (Tie)20.3 cm (8.0 in)tie73 years10 of 100 (Routine)
13 December 2025Augusta, USdaily snowfall12.7 cm (5.0 in)5.1 cm (2.0 in)68 years40 of 100 (Notable)
13 December 2025Augusta, USmonthly snow depth (Tie)20.3 cm (8.0 in)tie73 years10 of 100 (Routine)
12 December 2025Augusta, USdaily snowfall (Tie)7.6 cm (3.0 in)tie62 years6 of 100 (Routine)
6 December 2025Augusta, USmonthly snow depth (Tie)20.3 cm (8.0 in)tie73 years10 of 100 (Routine)
5 December 2025Augusta, USmonthly snow depth (Tie)20.3 cm (8.0 in)tie73 years10 of 100 (Routine)
4 December 2025Augusta, USmonthly snow depth (Tie)20.3 cm (8.0 in)tie73 years10 of 100 (Routine)
3 December 2025Augusta, USmonthly snow depth (Tie)20.3 cm (8.0 in)tie73 years10 of 100 (Routine)
2 December 2025Augusta, USmonthly snow depth (Tie)20.3 cm (8.0 in)tie73 years10 of 100 (Routine)
1 December 2025Augusta, USdaily snowfall5.1 cm (2.0 in)1.3 cm (0.5 in)51 years26 of 100 (Routine)
1 December 2025Augusta, USmonthly snow depth (Tie)20.3 cm (8.0 in)tie73 years10 of 100 (Routine)
30 November 2025Augusta, USmonthly snow depth (Tie)15.2 cm (6.0 in)tie0 years4 of 100 (Routine)
29 November 2025Augusta, USdaily snowfall15.2 cm (6.0 in)8.8 cm (3.5 in)54 years42 of 100 (Notable)
29 November 2025Augusta, USdaily rain27.9 mm (1.1 in)0.2 mm (0.01 in)56 years26 of 100 (Routine)

Extremes by Year

1936 to 2026
Yearly extremes at Augusta: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)109.2 mm (4.3 in)196161.1 mm (2.4 in)58
Wettest five days (Rx5day)179.1 mm (7.1 in)196194.8 mm (3.7 in)58
Longest dry spell (CDD)46 days193925 days58

Wettest day (Rx1day)

Wettest day (Rx1day) at Augusta by year The wettest day of the year at Augusta, 1936 to 2026. The record is 109.2 mm (4.3 in) in 1961, marked on the chart; the median year is 61.1 mm (2.4 in). 025507510012519401960198020002020Record: 109.2 mm (4.3 in) in 1961
The wettest day of the year at Augusta, 1936 to 2026. The record is 109.2 mm (4.3 in) in 1961, marked on the chart; the median year is 61.1 mm (2.4 in).
Wettest day (Rx1day) at Augusta by year
YearWettest day (Rx1day)
193624.1 mm (0.9 in)
193771.1 mm (2.8 in)
193864.5 mm (2.5 in)
193962.5 mm (2.5 in)
194047.8 mm (1.9 in)
194173.9 mm (2.9 in)
194226.7 mm (1.1 in)
194357.9 mm (2.3 in)
194476.2 mm (3.0 in)
194578.7 mm (3.1 in)
194678.7 mm (3.1 in)
194796.5 mm (3.8 in)
194859.7 mm (2.4 in)
194940.6 mm (1.6 in)
195085.1 mm (3.4 in)
195173.7 mm (2.9 in)
195296.5 mm (3.8 in)
195338.1 mm (1.5 in)
195465.8 mm (2.6 in)
195543.2 mm (1.7 in)
195659.7 mm (2.4 in)
195743.9 mm (1.7 in)
195855.9 mm (2.2 in)
195978.5 mm (3.1 in)
196055.9 mm (2.2 in)
1961109.2 mm (4.3 in)
196263.5 mm (2.5 in)
196366.8 mm (2.6 in)
196467.3 mm (2.6 in)
196545.7 mm (1.8 in)
196646.2 mm (1.8 in)
196757.2 mm (2.3 in)
196845.7 mm (1.8 in)
196963.5 mm (2.5 in)
1970107.4 mm (4.2 in)
197150.8 mm (2.0 in)
197256.6 mm (2.2 in)
197374.9 mm (2.9 in)
1974108.7 mm (4.3 in)
197559.2 mm (2.3 in)
197653.3 mm (2.1 in)
197758.4 mm (2.3 in)
197854.1 mm (2.1 in)
201255.9 mm (2.2 in)
201358.9 mm (2.3 in)
201469.9 mm (2.8 in)
201575.9 mm (3.0 in)
201645.2 mm (1.8 in)
201745.2 mm (1.8 in)
201868.6 mm (2.7 in)
201969.1 mm (2.7 in)
202054.6 mm (2.1 in)
202166.5 mm (2.6 in)
202248.3 mm (1.9 in)
2023100.3 mm (3.9 in)
202482.6 mm (3.3 in)
2025101.6 mm (4.0 in)
202654.6 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Augusta by year The wettest five days of the year at Augusta, 1936 to 2026. The record is 179.1 mm (7.1 in) in 1961, marked on the chart; the median year is 94.8 mm (3.7 in). 05010015020019401960198020002020Record: 179.1 mm (7.1 in) in 1961
The wettest five days of the year at Augusta, 1936 to 2026. The record is 179.1 mm (7.1 in) in 1961, marked on the chart; the median year is 94.8 mm (3.7 in).
Wettest five days (Rx5day) at Augusta by year
YearWettest five days (Rx5day)
193651.8 mm (2.0 in)
1937101.6 mm (4.0 in)
193897.3 mm (3.8 in)
1939104.5 mm (4.1 in)
194084.0 mm (3.3 in)
1941162.8 mm (6.4 in)
194252.1 mm (2.1 in)
194385.1 mm (3.4 in)
194484.7 mm (3.3 in)
1945104.1 mm (4.1 in)
1946123.7 mm (4.9 in)
1947109.5 mm (4.3 in)
194882.5 mm (3.2 in)
194944.7 mm (1.8 in)
1950141.8 mm (5.6 in)
195183.4 mm (3.3 in)
1952158.2 mm (6.2 in)
195362.8 mm (2.5 in)
1954112.8 mm (4.4 in)
195582.0 mm (3.2 in)
195670.6 mm (2.8 in)
195773.6 mm (2.9 in)
1958134.9 mm (5.3 in)
195990.4 mm (3.6 in)
196078.6 mm (3.1 in)
1961179.1 mm (7.1 in)
196288.0 mm (3.5 in)
196389.7 mm (3.5 in)
1964117.8 mm (4.6 in)
196576.7 mm (3.0 in)
196646.2 mm (1.8 in)
196789.9 mm (3.5 in)
196868.8 mm (2.7 in)
1969145.5 mm (5.7 in)
1970138.0 mm (5.4 in)
197157.2 mm (2.3 in)
197278.4 mm (3.1 in)
1973119.4 mm (4.7 in)
1974142.6 mm (5.6 in)
197592.2 mm (3.6 in)
1976119.4 mm (4.7 in)
1977103.5 mm (4.1 in)
197869.3 mm (2.7 in)
201279.8 mm (3.1 in)
2013121.8 mm (4.8 in)
2014118.7 mm (4.7 in)
2015102.6 mm (4.0 in)
201668.8 mm (2.7 in)
201782.0 mm (3.2 in)
201898.3 mm (3.9 in)
2019132.1 mm (5.2 in)
202082.6 mm (3.3 in)
2021111.0 mm (4.4 in)
202268.6 mm (2.7 in)
2023116.4 mm (4.6 in)
2024103.7 mm (4.1 in)
2025113.8 mm (4.5 in)
2026103.4 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Augusta by year The longest dry spell of the year at Augusta, 1936 to 2026. The record is 46 days in 1939, marked on the chart; the median year is 25 days. 102030405019401960198020002020Record: 46 days in 1939
The longest dry spell of the year at Augusta, 1936 to 2026. The record is 46 days in 1939, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Augusta by year
YearLongest dry spell (CDD)
193625 days
193719 days
193826 days
193946 days
194023 days
194123 days
194228 days
194328 days
194428 days
194526 days
194635 days
194724 days
194832 days
194923 days
195029 days
195118 days
195242 days
195323 days
195424 days
195529 days
195629 days
195728 days
195826 days
195926 days
196024 days
196116 days
196221 days
196332 days
196435 days
196517 days
196626 days
196724 days
196819 days
196923 days
197020 days
197131 days
197216 days
197315 days
197422 days
197515 days
197626 days
197730 days
197812 days
201217 days
201329 days
201438 days
201526 days
201625 days
201728 days
201821 days
201919 days
202019 days
202123 days
202218 days
202324 days
202422 days
202530 days
202637 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

45 years, 1937 to 2025

A day with at least 65.2 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 127.0 mm (5.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Augusta: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years65.2 mm (2.6 in)
5 years82.6 mm (3.3 in)
10 years93.7 mm (3.7 in)
25 years107.5 mm (4.2 in)
50 years117.4 mm (4.6 in)Longer than the 45 years of record
100 years127.0 mm (5.0 in)Longer than the 45 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, 45 years of values from 1937 to 2025.

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: 109.2 mm (4.3 in) in 1961; 108.7 mm (4.3 in) in 1974; 107.4 mm (4.2 in) in 1970.

Download the Data

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