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

Galva Weather Records (USC00133108)

Record envelope, standing records and threshold days for Galva (USC00133108), Iowa, United States, with 47 years of record.

Key Facts for Galva

  • Galva (USC00133108) is a weather station in Iowa, United States at 42.50 latitude and -95.42 longitude, 427 m (1,400 ft) above sea level.
  • The station reports from 1963 to 2009, 47 years of record.
  • 0 records set at Galva still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Galva set a daily record precipitation of 32.0 mm (1.3 in) on 21 October 2009.

About the Station

  • Location: Iowa, United States, 42.50 latitude, -95.42 longitude.
  • Elevation: 427 m (1,400 ft).
  • Period of record: 1963 to 2009, 47 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 Galva, with 2026 drawn through them The band shows the record high and record low for each calendar day at Galva. 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 Galva. 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 Galva, 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 Galva by the year they were set 0 records at Galva still stand. 00000000000
0 records at Galva still stand.
Standing records at Galva by the year they were set
Year setStanding records

Wettest Day of Each Month

Aug: 169.2 mm (6.7 in)
Record daily precipitation for each month at Galva The wettest day on record for each calendar month at Galva. The most was 169.2 mm (6.7 in) on 5 August 1996. 050100150200 Jan: 45.7 mm (1.8 in), 8 January 1999 Jan Feb: 30.0 mm (1.2 in), 15 February 2003 Feb Mar: 55.4 mm (2.2 in), 28 March 2004 Mar Apr: 62.7 mm (2.5 in), 27 April 1991 Apr May: 130.0 mm (5.1 in), 6 May 2007 May Jun: 86.6 mm (3.4 in), 21 June 1996 Jun Jul: 89.9 mm (3.5 in), 6 July 1982 Jul Aug: 169.2 mm (6.7 in), 5 August 1996 Aug Sep: 107.4 mm (4.2 in), 13 September 1978 Sep Oct: 64.8 mm (2.6 in), 4 October 2002 Oct Nov: 58.9 mm (2.3 in), 30 November 1991 Nov Dec: 41.9 mm (1.6 in), 28 December 1982 Dec
The wettest day on record for each calendar month at Galva. The most was 169.2 mm (6.7 in) on 5 August 1996.
Record daily precipitation for each month at Galva
MonthRecord daily precipitation (mm)Date
Jan45.7 mm (1.8 in)8 January 1999
Feb30.0 mm (1.2 in)15 February 2003
Mar55.4 mm (2.2 in)28 March 2004
Apr62.7 mm (2.5 in)27 April 1991
May130.0 mm (5.1 in)6 May 2007
Jun86.6 mm (3.4 in)21 June 1996
Jul89.9 mm (3.5 in)6 July 1982
Aug169.2 mm (6.7 in)5 August 1996
Sep107.4 mm (4.2 in)13 September 1978
Oct64.8 mm (2.6 in)4 October 2002
Nov58.9 mm (2.3 in)30 November 1991
Dec41.9 mm (1.6 in)28 December 1982

Latest Records

20
Latest records at Galva
DateStationRecordValueBeat old record byOld record stoodSignificance
21 October 2009Galva, USdaily rain32.0 mm (1.3 in)18.3 mm (0.7 in)19 years27 of 100 (Routine)
20 August 2009Galva, USdaily rain35.6 mm (1.4 in)14.8 mm (0.6 in)23 years18 of 100 (Routine)
3 August 2009Galva, USdaily rain38.1 mm (1.5 in)7.1 mm (0.28 in)8 years10 of 100 (Routine)
27 February 2009Galva, USdaily rain5.1 mm (0.20 in)3.1 mm (0.12 in)15 years15 of 100 (Routine)
10 February 2009Galva, USdaily rain4.6 mm (0.18 in)0.5 mm (0.02 in)37 years16 of 100 (Routine)
10 January 2009Galva, USdaily snowfall8.9 cm (3.5 in)3.8 cm (1.5 in)24 years17 of 100 (Routine)
19 December 2008Galva, USdaily snowfall17.8 cm (7.0 in)16.5 cm (6.5 in)19 years49 of 100 (Notable)
19 December 2008Galva, USdaily rain14.2 mm (0.6 in)13.4 mm (0.5 in)16 years20 of 100 (Routine)
17 December 2008Galva, USdaily snowfall15.2 cm (6.0 in)5.0 cm (2.0 in)23 years22 of 100 (Routine)
9 December 2008Galva, USdaily snowfall10.2 cm (4.0 in)2.6 cm (1.0 in)13 years13 of 100 (Routine)
14 November 2008Galva, USdaily rain5.3 mm (0.21 in)0.7 mm (0.03 in)15 years8 of 100 (Routine)
23 October 2008Galva, USdaily rain39.9 mm (1.6 in)15.0 mm (0.6 in)36 years29 of 100 (Routine)
22 October 2008Galva, USdaily rain23.1 mm (0.9 in)9.1 mm (0.36 in)29 years20 of 100 (Routine)
7 October 2008Galva, USdaily rain35.8 mm (1.4 in)7.1 mm (0.28 in)16 years15 of 100 (Routine)
19 July 2008Galva, USdaily rain78.7 mm (3.1 in)46.4 mm (1.8 in)21 years44 of 100 (Notable)
26 June 2008Galva, USdaily rain51.3 mm (2.0 in)14.2 mm (0.6 in)3 years13 of 100 (Routine)
3 June 2008Galva, USdaily rain20.8 mm (0.8 in)6.3 mm (0.25 in)18 years13 of 100 (Routine)
30 May 2008Galva, USdaily rain29.5 mm (1.2 in)9.2 mm (0.36 in)28 years19 of 100 (Routine)
23 May 2008Galva, USdaily rain27.2 mm (1.1 in)0.5 mm (0.02 in)27 years12 of 100 (Routine)
18 April 2008Galva, USdaily rain14.2 mm (0.6 in)3.3 mm (0.13 in)22 years13 of 100 (Routine)

Extremes by Year

1963 to 2009
Yearly extremes at Galva: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)169.2 mm (6.7 in)199657.2 mm (2.3 in)46
Wettest five days (Rx5day)203.0 mm (8.0 in)200785.5 mm (3.4 in)46
Longest dry spell (CDD)51 days196423 days46

Wettest day (Rx1day)

Wettest day (Rx1day) at Galva by year The wettest day of the year at Galva, 1963 to 2009. The record is 169.2 mm (6.7 in) in 1996, marked on the chart; the median year is 57.2 mm (2.3 in). 0501001502001970198019902000Record: 169.2 mm (6.7 in) in 1996
The wettest day of the year at Galva, 1963 to 2009. The record is 169.2 mm (6.7 in) in 1996, marked on the chart; the median year is 57.2 mm (2.3 in).
Wettest day (Rx1day) at Galva by year
YearWettest day (Rx1day)
196316.3 mm (0.6 in)
196421.6 mm (0.9 in)
196517.0 mm (0.7 in)
196758.4 mm (2.3 in)
196845.2 mm (1.8 in)
196915.5 mm (0.6 in)
197026.2 mm (1.0 in)
197153.8 mm (2.1 in)
197283.8 mm (3.3 in)
197357.9 mm (2.3 in)
197441.7 mm (1.6 in)
197592.2 mm (3.6 in)
197661.7 mm (2.4 in)
197738.9 mm (1.5 in)
1978107.4 mm (4.2 in)
197983.8 mm (3.3 in)
198066.8 mm (2.6 in)
198153.8 mm (2.1 in)
198289.9 mm (3.5 in)
198368.1 mm (2.7 in)
198444.2 mm (1.7 in)
198570.6 mm (2.8 in)
198681.3 mm (3.2 in)
198752.8 mm (2.1 in)
198876.2 mm (3.0 in)
198954.6 mm (2.1 in)
199083.1 mm (3.3 in)
199166.8 mm (2.6 in)
199249.8 mm (2.0 in)
199341.1 mm (1.6 in)
199475.4 mm (3.0 in)
199553.8 mm (2.1 in)
1996169.2 mm (6.7 in)
199764.0 mm (2.5 in)
199852.1 mm (2.1 in)
199954.1 mm (2.1 in)
200034.3 mm (1.4 in)
200154.9 mm (2.2 in)
200264.8 mm (2.6 in)
200352.8 mm (2.1 in)
200468.6 mm (2.7 in)
200558.4 mm (2.3 in)
200656.4 mm (2.2 in)
2007130.0 mm (5.1 in)
200878.7 mm (3.1 in)
200939.6 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Galva by year The wettest five days of the year at Galva, 1963 to 2009. The record is 203.0 mm (8.0 in) in 2007, marked on the chart; the median year is 85.5 mm (3.4 in). 01002003001970198019902000Record: 203.0 mm (8.0 in) in 2007
The wettest five days of the year at Galva, 1963 to 2009. The record is 203.0 mm (8.0 in) in 2007, marked on the chart; the median year is 85.5 mm (3.4 in).
Wettest five days (Rx5day) at Galva by year
YearWettest five days (Rx5day)
19630.0 mm (0.00 in)
196429.0 mm (1.1 in)
196521.6 mm (0.9 in)
1967158.0 mm (6.2 in)
196891.0 mm (3.6 in)
196922.8 mm (0.9 in)
197046.8 mm (1.8 in)
197197.2 mm (3.8 in)
1972113.8 mm (4.5 in)
197381.2 mm (3.2 in)
197467.4 mm (2.7 in)
197592.2 mm (3.6 in)
197691.6 mm (3.6 in)
197744.9 mm (1.8 in)
1978131.6 mm (5.2 in)
1979153.4 mm (6.0 in)
198067.6 mm (2.7 in)
198163.2 mm (2.5 in)
1982113.5 mm (4.5 in)
1983163.4 mm (6.4 in)
198476.9 mm (3.0 in)
198582.5 mm (3.2 in)
1986110.5 mm (4.4 in)
198782.1 mm (3.2 in)
198860.0 mm (2.4 in)
1989111.7 mm (4.4 in)
1990183.6 mm (7.2 in)
199188.4 mm (3.5 in)
199282.0 mm (3.2 in)
199386.6 mm (3.4 in)
1994100.8 mm (4.0 in)
199577.9 mm (3.1 in)
1996200.2 mm (7.9 in)
199769.1 mm (2.7 in)
199869.0 mm (2.7 in)
199961.8 mm (2.4 in)
200053.6 mm (2.1 in)
200184.4 mm (3.3 in)
2002129.3 mm (5.1 in)
2003112.0 mm (4.4 in)
200491.7 mm (3.6 in)
2005111.5 mm (4.4 in)
200676.9 mm (3.0 in)
2007203.0 mm (8.0 in)
2008110.4 mm (4.3 in)
200976.5 mm (3.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Galva by year The longest dry spell of the year at Galva, 1963 to 2009. The record is 51 days in 1964, marked on the chart; the median year is 23 days. 02040601970198019902000Record: 51 days in 1964
The longest dry spell of the year at Galva, 1963 to 2009. The record is 51 days in 1964, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Galva by year
YearLongest dry spell (CDD)
19636 days
196451 days
196513 days
196710 days
196823 days
196913 days
197020 days
197119 days
197224 days
197321 days
197423 days
197521 days
197642 days
197713 days
197818 days
197926 days
198030 days
198142 days
198216 days
198322 days
198427 days
198537 days
198635 days
198737 days
198831 days
198927 days
199020 days
199123 days
199222 days
199322 days
199426 days
199521 days
199618 days
199719 days
199849 days
199923 days
200017 days
200122 days
200229 days
200326 days
200420 days
200523 days
200621 days
200742 days
200815 days
200947 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

35 years, 1972 to 2009

A day with at least 60.8 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 164.9 mm (6.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Galva: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years60.8 mm (2.4 in)
5 years80.7 mm (3.2 in)
10 years96.7 mm (3.8 in)
25 years120.4 mm (4.7 in)
50 years141.2 mm (5.6 in)Longer than the 35 years of record
100 years164.9 mm (6.5 in)Longer than the 35 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, 35 years of values from 1972 to 2009.

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: 169.2 mm (6.7 in) in 1996; 130.0 mm (5.1 in) in 2007; 92.2 mm (3.6 in) in 1975.

Download the Data

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