Built 2026-10-16 (16 October 2026)

Holstein Weather Records (USC00133909)

Record envelope, standing records and threshold days for Holstein (USC00133909), Iowa, United States, with 70 years of record.

Key Facts for Holstein

  • Holstein (USC00133909) is a weather station in Iowa, United States at 42.49 latitude and -95.55 longitude, 418 m (1,370 ft) above sea level.
  • The station reports from 1951 to 2020, 70 years of record.
  • 1,464 records set at Holstein still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Holstein set a daily record snowfall of 11.4 cm (4.5 in) on 18 January 2020.

About the Station

  • Location: Iowa, United States, 42.49 latitude, -95.55 longitude.
  • Elevation: 418 m (1,370 ft).
  • Period of record: 1951 to 2020, 70 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 Holstein, with 2026 drawn through them The band shows the record high and record low for each calendar day at Holstein. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Holstein. 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 Holstein, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.1 C (61.0 F)-32.8 C (-27.0 F)n/an/a
Feb18.9 C (66.0 F)-28.3 C (-18.9 F)n/an/a
Mar28.3 C (82.9 F)-26.7 C (-16.1 F)n/an/a
Apr32.2 C (90.0 F)-15.0 C (5.0 F)n/an/a
May37.8 C (100.0 F)-2.8 C (27.0 F)n/an/a
Jun35.6 C (96.1 F)6.7 C (44.1 F)n/an/a
Jul38.3 C (100.9 F)7.2 C (45.0 F)n/an/a
Aug34.4 C (93.9 F)6.7 C (44.1 F)n/an/a
Sep34.4 C (93.9 F)-0.6 C (30.9 F)n/an/a
Oct31.7 C (89.1 F)-9.4 C (15.1 F)n/an/a
Nov25.6 C (78.1 F)-20.6 C (-5.1 F)n/an/a
Dec15.6 C (60.1 F)-30.6 C (-23.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Holstein by the year they were set 1,464 records at Holstein still stand. 2012 holds the most, with 150. 0501001502004: 222005: 952006: 1422007: 932008: 722009: 992010: 722011: 852012: 1502013: 1162014: 1102015: 752016: 752017: 992018: 792019: 772020: 3200420062008201020122014201620182020
1,464 records at Holstein still stand. 2012 holds the most, with 150.
Standing records at Holstein by the year they were set
Year setStanding records
200422
200595
2006142
200793
200872
200999
201072
201185
2012150
2013116
2014110
201575
201675
201799
201879
201977
20203

All-Time Record Progression

4 new records
When Holstein set new all-time records 4 all-time records were set at Holstein between 26 March 1983 and 8 January 2010. Each dot is a new record. Record daily snowfallRecord snow depth26 March 1983: Record daily snowfall 40.6 cm (16.0 in)6 February 2004: Record snow depth 63.5 cm (25.0 in)7 January 2010: Record snow depth 71.1 cm (28.0 in)8 January 2010: Record snow depth 73.7 cm (29.0 in)198519901995200020052010
4 all-time records were set at Holstein between 26 March 1983 and 8 January 2010. Each dot is a new record.
When Holstein set new all-time records
DateKindDetail
1983-03-26Record daily snowfallRecord daily snowfall 40.6 cm (16.0 in)
2004-02-06Record snow depthRecord snow depth 63.5 cm (25.0 in)
2010-01-07Record snow depthRecord snow depth 71.1 cm (28.0 in)
2010-01-08Record snow depthRecord snow depth 73.7 cm (29.0 in)

Wettest Day of Each Month

Jun: 140.2 mm (5.5 in)
Record daily precipitation for each month at Holstein The wettest day on record for each calendar month at Holstein. The most was 140.2 mm (5.5 in) on 19 June 1954. 050100150 Jan: 31.5 mm (1.2 in), 30 January 2001 Jan Feb: 36.8 mm (1.4 in), 21 February 1993 Feb Mar: 50.0 mm (2.0 in), 28 March 2004 Mar Apr: 70.1 mm (2.8 in), 28 April 1975 Apr May: 112.8 mm (4.4 in), 6 May 2007 May Jun: 140.2 mm (5.5 in), 19 June 1954 Jun Jul: 94.5 mm (3.7 in), 7 July 1952 Jul Aug: 136.4 mm (5.4 in), 5 August 1996 Aug Sep: 76.2 mm (3.0 in), 15 September 2004 Sep Oct: 60.5 mm (2.4 in), 30 October 1979 Oct Nov: 53.3 mm (2.1 in), 30 November 1991 Nov Dec: 42.9 mm (1.7 in), 14 December 2015 Dec
The wettest day on record for each calendar month at Holstein. The most was 140.2 mm (5.5 in) on 19 June 1954.
Record daily precipitation for each month at Holstein
MonthRecord daily precipitation (mm)Date
Jan31.5 mm (1.2 in)30 January 2001
Feb36.8 mm (1.4 in)21 February 1993
Mar50.0 mm (2.0 in)28 March 2004
Apr70.1 mm (2.8 in)28 April 1975
May112.8 mm (4.4 in)6 May 2007
Jun140.2 mm (5.5 in)19 June 1954
Jul94.5 mm (3.7 in)7 July 1952
Aug136.4 mm (5.4 in)5 August 1996
Sep76.2 mm (3.0 in)15 September 2004
Oct60.5 mm (2.4 in)30 October 1979
Nov53.3 mm (2.1 in)30 November 1991
Dec42.9 mm (1.7 in)14 December 2015

Period of Record Coverage

2004 to 2020
Days with data per year at Holstein 17 years of record at Holstein, 2004 to 2020. 2 years have data for under 90 percent of days and are left out of rankings: 2004, 2020. 2004: 122 of 366 days2005: 363 of 365 days2006: 363 of 365 days2007: 362 of 365 days2008: 359 of 366 days2009: 364 of 365 days2010: 365 of 365 days2011: 364 of 365 days2012: 363 of 366 days2013: 344 of 365 days2014: 364 of 365 days2015: 363 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 358 of 365 days2020: 34 of 366 days2005201020152020
17 years of record at Holstein, 2004 to 2020. 2 years have data for under 90 percent of days and are left out of rankings: 2004, 2020.
Days with data per year at Holstein
YearDays with dataShare of yearComplete
200412233%No
200536399%Yes
200636399%Yes
200736299%Yes
200835998%Yes
2009364100%Yes
2010365100%Yes
2011364100%Yes
201236399%Yes
201334494%Yes
2014364100%Yes
201536399%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
201935898%Yes
2020349%No

Latest Records

20
Latest records at Holstein
DateStationRecordValueBeat old record byOld record stoodSignificance
18 January 2020Holstein, USdaily snowfall11.4 cm (4.5 in)6.8 cm (2.7 in)20 years28 of 100 (Routine)
11 September 2019Holstein, USdaily rain62.2 mm (2.4 in)36.3 mm (1.4 in)12 years39 of 100 (Notable)
31 July 2019Holstein, USdaily rain31.2 mm (1.2 in)23.1 mm (0.9 in)56 years38 of 100 (Notable)
8 May 2019Holstein, USdaily rain33.5 mm (1.3 in)1.7 mm (0.07 in)53 years23 of 100 (Routine)
2 April 2019Holstein, USdaily snowfall7.6 cm (3.0 in)2.5 cm (1.0 in)40 years23 of 100 (Routine)
13 March 2019Holstein, USdaily rain26.2 mm (1.0 in)2.8 mm (0.11 in)28 years17 of 100 (Routine)
24 February 2019Holstein, USdaily snowfall25.4 cm (10.0 in)5.1 cm (2.0 in)1 year15 of 100 (Routine)
24 February 2019Holstein, USdaily rain27.2 mm (1.1 in)0.8 mm (0.03 in)7 years9 of 100 (Routine)
17 February 2019Holstein, USdaily rain20.3 mm (0.8 in)15.2 mm (0.6 in)57 years20 of 100 (Routine)
17 February 2019Holstein, USdaily snowfall12.7 cm (5.0 in)7.6 cm (3.0 in)56 years37 of 100 (Notable)
27 December 2018Holstein, USdaily rain29.7 mm (1.2 in)5.6 mm (0.22 in)59 years32 of 100 (Routine)
1 December 2018Holstein, USdaily rain19.6 mm (0.8 in)4.6 mm (0.18 in)3 years14 of 100 (Routine)
19 September 2018Holstein, USdaily rain60.5 mm (2.4 in)6.9 mm (0.27 in)23 years17 of 100 (Routine)
18 April 2018Holstein, USdaily snowfall7.6 cm (3.0 in)7.6 cm (3.0 in)65 years41 of 100 (Notable)
18 April 2018Holstein, USdaily snow depth7.6 cm (3.0 in)5.1 cm (2.0 in)35 years20 of 100 (Routine)
17 April 2018Holstein, USdaily snow depth (Tie)2.5 cm (1.0 in)tie35 years4 of 100 (Routine)
16 April 2018Holstein, USdaily snow depth5.1 cm (2.0 in)2.6 cm (1.0 in)64 years20 of 100 (Routine)
15 April 2018Holstein, USdaily snowfall12.7 cm (5.0 in)1.3 cm (0.5 in)21 years14 of 100 (Routine)
15 April 2018Holstein, USdaily snow depth (Tie)12.7 cm (5.0 in)tie21 years3 of 100 (Routine)
3 April 2018Holstein, USdaily snowfall (Tie)5.1 cm (2.0 in)tie45 years4 of 100 (Routine)

Climate Trend

15 complete years, 2005 to 2019
Annual mean temperature at Holstein as warming stripes, 2005 to 2019 One stripe for each of 15 complete years at Holstein, 2005 to 2019. Blue stripes are years cooler than the station's own mean of 8.6 C (47.4 F); red stripes are warmer. The coolest year was 2014, at 6.4 C (43.5 F), and the warmest was 2012, at 10.9 C (51.7 F). The strongest colour marks a difference of 2.4 C (4.3 F). 2005: 9.7 C, +1.1 C from the station mean2006: 10.1 C, +1.6 C from the station mean2007: 9.1 C, +0.5 C from the station mean2008: 7.4 C, -1.2 C from the station mean2009: 7.8 C, -0.8 C from the station mean2010: 8.5 C, -0.1 C from the station mean2011: 8.7 C, +0.1 C from the station mean2012: 10.9 C, +2.4 C from the station mean2013: 7.0 C, -1.6 C from the station mean2014: 6.4 C, -2.2 C from the station mean2015: 9.1 C, +0.5 C from the station mean2016: 9.8 C, +1.2 C from the station mean2017: 9.4 C, +0.8 C from the station mean2018: 7.7 C, -0.8 C from the station mean2019: 7.2 C, -1.4 C from the station mean20052006200820102012201420162018
One stripe for each of 15 complete years at Holstein, 2005 to 2019. Blue stripes are years cooler than the station's own mean of 8.6 C (47.4 F); red stripes are warmer. The coolest year was 2014, at 6.4 C (43.5 F), and the warmest was 2012, at 10.9 C (51.7 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Holstein as warming stripes, 2005 to 2019
YearAnnual mean temperatureDifference from the station mean
20059.7 C+1.14 C
200610.1 C+1.56 C
20079.1 C+0.51 C
20087.4 C-1.22 C
20097.8 C-0.79 C
20108.5 C-0.09 C
20118.7 C+0.11 C
201210.9 C+2.36 C
20137.0 C-1.62 C
20146.4 C-2.18 C
20159.1 C+0.52 C
20169.8 C+1.20 C
20179.4 C+0.78 C
20187.7 C-0.83 C
20197.2 C-1.42 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1951 to 2020
Yearly extremes at Holstein: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)200634.4 C (93.9 F)17
Coldest night (TNn)-32.8 C (-27.0 F)2009-27.8 C (-18.0 F)17
Wettest day (Rx1day)140.2 mm (5.5 in)195460.5 mm (2.4 in)70
Wettest five days (Rx5day)224.9 mm (8.9 in)201498.6 mm (3.9 in)69
Longest dry spell (CDD)61 days201727 days70

Hottest day (TXx)

Hottest day (TXx) at Holstein by year The hottest day of the year at Holstein, 1951 to 2020. The record is 38.3 C (100.9 F) in 2006, marked on the chart; the median year is 34.4 C (93.9 F). 0102030401960198020002020Record: 38.3 C (100.9 F) in 2006
The hottest day of the year at Holstein, 1951 to 2020. The record is 38.3 C (100.9 F) in 2006, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Holstein by year
YearHottest day (TXx)
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
200431.7 C (89.1 F)
200536.1 C (97.0 F)
200638.3 C (100.9 F)
200733.9 C (93.0 F)
200833.3 C (91.9 F)
200932.8 C (91.0 F)
201032.8 C (91.0 F)
201135.6 C (96.1 F)
201236.7 C (98.1 F)
201337.8 C (100.0 F)
201432.8 C (91.0 F)
201534.4 C (93.9 F)
201635.6 C (96.1 F)
201733.3 C (91.9 F)
201836.7 C (98.1 F)
201934.4 C (93.9 F)
20206.7 C (44.1 F)

Coldest night (TNn)

Coldest night (TNn) at Holstein by year The coldest night of the year at Holstein, 1951 to 2020. The record is -32.8 C (-27.0 F) in 2009, marked on the chart; the median year is -27.8 C (-18.0 F). -35-30-25-201960198020002020Record: -32.8 C (-27.0 F) in 2009
The coldest night of the year at Holstein, 1951 to 2020. The record is -32.8 C (-27.0 F) in 2009, marked on the chart; the median year is -27.8 C (-18.0 F).
Coldest night (TNn) at Holstein by year
YearColdest night (TNn)
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004-23.3 C (-9.9 F)
2005-25.0 C (-13.0 F)
2006-25.6 C (-14.1 F)
2007-27.2 C (-17.0 F)
2008-28.3 C (-18.9 F)
2009-32.8 C (-27.0 F)
2010-31.7 C (-25.1 F)
2011-28.3 C (-18.9 F)
2012-21.1 C (-6.0 F)
2013-24.4 C (-11.9 F)
2014-27.8 C (-18.0 F)
2015-25.6 C (-14.1 F)
2016-29.4 C (-20.9 F)
2017-30.6 C (-23.1 F)
2018-31.7 C (-25.1 F)
2019-31.1 C (-24.0 F)
2020-26.1 C (-15.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Holstein by year The wettest day of the year at Holstein, 1951 to 2020. The record is 140.2 mm (5.5 in) in 1954, marked on the chart; the median year is 60.5 mm (2.4 in). 0501001501960198020002020Record: 140.2 mm (5.5 in) in 1954
The wettest day of the year at Holstein, 1951 to 2020. The record is 140.2 mm (5.5 in) in 1954, marked on the chart; the median year is 60.5 mm (2.4 in).
Wettest day (Rx1day) at Holstein by year
YearWettest day (Rx1day)
195192.2 mm (3.6 in)
195294.5 mm (3.7 in)
195326.9 mm (1.1 in)
1954140.2 mm (5.5 in)
195590.7 mm (3.6 in)
195630.5 mm (1.2 in)
195745.7 mm (1.8 in)
195869.6 mm (2.7 in)
195973.4 mm (2.9 in)
196051.6 mm (2.0 in)
196180.0 mm (3.1 in)
196290.9 mm (3.6 in)
1963124.5 mm (4.9 in)
196441.1 mm (1.6 in)
196559.2 mm (2.3 in)
196648.3 mm (1.9 in)
196766.5 mm (2.6 in)
196859.4 mm (2.3 in)
196959.7 mm (2.4 in)
197052.8 mm (2.1 in)
197151.1 mm (2.0 in)
197291.7 mm (3.6 in)
197353.3 mm (2.1 in)
197450.0 mm (2.0 in)
197577.0 mm (3.0 in)
197681.0 mm (3.2 in)
197754.1 mm (2.1 in)
197864.3 mm (2.5 in)
197960.5 mm (2.4 in)
198040.6 mm (1.6 in)
1981105.7 mm (4.2 in)
198288.9 mm (3.5 in)
198373.7 mm (2.9 in)
198453.3 mm (2.1 in)
1985106.9 mm (4.2 in)
198655.1 mm (2.2 in)
198747.8 mm (1.9 in)
198880.0 mm (3.1 in)
198975.4 mm (3.0 in)
199097.8 mm (3.9 in)
199153.3 mm (2.1 in)
199277.2 mm (3.0 in)
199344.5 mm (1.8 in)
199449.0 mm (1.9 in)
199557.7 mm (2.3 in)
1996136.4 mm (5.4 in)
199739.4 mm (1.6 in)
199858.4 mm (2.3 in)
199953.3 mm (2.1 in)
200038.1 mm (1.5 in)
200147.0 mm (1.9 in)
200276.7 mm (3.0 in)
200359.7 mm (2.4 in)
2004101.6 mm (4.0 in)
200565.0 mm (2.6 in)
200650.8 mm (2.0 in)
2007112.8 mm (4.4 in)
200853.3 mm (2.1 in)
200964.0 mm (2.5 in)
201073.2 mm (2.9 in)
201141.1 mm (1.6 in)
201245.5 mm (1.8 in)
201370.6 mm (2.8 in)
2014124.5 mm (4.9 in)
201566.0 mm (2.6 in)
201660.5 mm (2.4 in)
201781.8 mm (3.2 in)
201860.5 mm (2.4 in)
201962.2 mm (2.4 in)
20200.8 mm (0.03 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Holstein by year The wettest five days of the year at Holstein, 1951 to 2020. The record is 224.9 mm (8.9 in) in 2014, marked on the chart; the median year is 98.6 mm (3.9 in). 0501001502002501960198020002020Record: 224.9 mm (8.9 in) in 2014
The wettest five days of the year at Holstein, 1951 to 2020. The record is 224.9 mm (8.9 in) in 2014, marked on the chart; the median year is 98.6 mm (3.9 in).
Wettest five days (Rx5day) at Holstein by year
YearWettest five days (Rx5day)
1951137.9 mm (5.4 in)
195299.6 mm (3.9 in)
195347.1 mm (1.9 in)
1954187.2 mm (7.4 in)
195595.6 mm (3.8 in)
195656.1 mm (2.2 in)
1957118.6 mm (4.7 in)
195883.4 mm (3.3 in)
1959162.3 mm (6.4 in)
1960101.6 mm (4.0 in)
196187.7 mm (3.5 in)
1962133.8 mm (5.3 in)
1963186.7 mm (7.4 in)
196458.2 mm (2.3 in)
1965181.4 mm (7.1 in)
196689.5 mm (3.5 in)
1967146.8 mm (5.8 in)
1968113.2 mm (4.5 in)
196995.0 mm (3.7 in)
1970132.8 mm (5.2 in)
1971121.5 mm (4.8 in)
197298.6 mm (3.9 in)
197371.2 mm (2.8 in)
197462.7 mm (2.5 in)
1975105.4 mm (4.1 in)
197694.2 mm (3.7 in)
197787.6 mm (3.4 in)
1978116.4 mm (4.6 in)
197992.5 mm (3.6 in)
198068.1 mm (2.7 in)
1981112.3 mm (4.4 in)
1982119.6 mm (4.7 in)
1983142.7 mm (5.6 in)
198481.3 mm (3.2 in)
1985107.4 mm (4.2 in)
1986116.1 mm (4.6 in)
198783.9 mm (3.3 in)
1988100.6 mm (4.0 in)
1989127.7 mm (5.0 in)
1990168.4 mm (6.6 in)
199162.0 mm (2.4 in)
1992133.1 mm (5.2 in)
199379.1 mm (3.1 in)
199478.8 mm (3.1 in)
199585.2 mm (3.4 in)
1996193.1 mm (7.6 in)
199789.6 mm (3.5 in)
199886.1 mm (3.4 in)
199967.8 mm (2.7 in)
200050.0 mm (2.0 in)
200197.3 mm (3.8 in)
2002143.5 mm (5.6 in)
200395.5 mm (3.8 in)
2004129.3 mm (5.1 in)
2005110.9 mm (4.4 in)
200680.5 mm (3.2 in)
2007176.3 mm (6.9 in)
200876.6 mm (3.0 in)
2009100.8 mm (4.0 in)
2010111.3 mm (4.4 in)
201171.6 mm (2.8 in)
201281.0 mm (3.2 in)
201396.2 mm (3.8 in)
2014224.9 mm (8.9 in)
2015142.5 mm (5.6 in)
201681.3 mm (3.2 in)
2017111.5 mm (4.4 in)
201877.0 mm (3.0 in)
201988.4 mm (3.5 in)
2020n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Holstein by year The longest dry spell of the year at Holstein, 1951 to 2020. The record is 61 days in 2017, marked on the chart; the median year is 27 days. 0204060801960198020002020Record: 61 days in 2017
The longest dry spell of the year at Holstein, 1951 to 2020. The record is 61 days in 2017, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Holstein by year
YearLongest dry spell (CDD)
195117 days
195256 days
195324 days
195430 days
195519 days
195634 days
195729 days
195831 days
195919 days
196034 days
196130 days
196247 days
196327 days
196428 days
196523 days
196647 days
196743 days
196836 days
196919 days
197020 days
197132 days
197222 days
197320 days
197423 days
197522 days
197641 days
197716 days
197820 days
197930 days
198033 days
198130 days
198216 days
198317 days
198428 days
198526 days
198632 days
198727 days
198830 days
198927 days
199020 days
199121 days
199222 days
199320 days
199436 days
199530 days
199619 days
199719 days
199845 days
199927 days
200017 days
200123 days
200229 days
200321 days
200421 days
200531 days
200621 days
200742 days
200814 days
200924 days
201029 days
201130 days
201226 days
201319 days
201423 days
201526 days
201637 days
201761 days
201824 days
201937 days
20204 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

68 years, 1952 to 2019

A day with at least 63.0 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 156.2 mm (6.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Holstein: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years63.0 mm (2.5 in)
5 years84.8 mm (3.3 in)
10 years100.4 mm (4.0 in)
25 years121.7 mm (4.8 in)
50 years138.5 mm (5.5 in)
100 years156.2 mm (6.1 in)Longer than the 68 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, 68 years of values from 1952 to 2019.

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: 140.2 mm (5.5 in) in 1954; 136.4 mm (5.4 in) in 1996; 124.5 mm (4.9 in) in 1963.

Download the Data

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