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Data as of 2026-10-12
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Built 2026-10-19 (19 October 2026)

Groot Ammers Weather Records (NLE00101961)

Record envelope, standing records and threshold days for Groot Ammers (NLE00101961), Netherlands, with 77 years of record.

Key Facts for Groot Ammers

  • Groot Ammers (NLE00101961) is a weather station in Netherlands at 51.93 latitude and 4.82 longitude, -1 m (-3 ft) above sea level.
  • The station reports from 1950 to 2026, 77 years of record.
  • 0 records set at Groot Ammers still stand.
  • Records are tracked for prcp, snwd: an element needs 30 years of data to be eligible.
  • Groot Ammers set a daily record precipitation of 37.0 mm (1.5 in) on 27 June 2026.

About the Station

  • Location: Netherlands, 51.93 latitude, 4.82 longitude.
  • Elevation: -1 m (-3 ft).
  • Period of record: 1950 to 2026, 77 years.
  • Eligible elements: prcp, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Groot Ammers, with 2026 drawn through them The band shows the record high and record low for each calendar day at Groot Ammers. 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 Groot Ammers. 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 Groot Ammers, 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
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Juln/an/an/an/a
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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 Groot Ammers by the year they were set 0 records at Groot Ammers still stand. 00000000000
0 records at Groot Ammers still stand.
Standing records at Groot Ammers by the year they were set
Year setStanding records

Wettest Day of Each Month

Jul: 81.0 mm (3.2 in)
Record daily precipitation for each month at Groot Ammers The wettest day on record for each calendar month at Groot Ammers. The most was 81.0 mm (3.2 in) on 3 July 1952. 0255075100 Jan: 31.4 mm (1.2 in), 3 January 1983 Jan Feb: 33.8 mm (1.3 in), 6 February 1984 Feb Mar: 37.2 mm (1.5 in), 6 March 1998 Mar Apr: 67.2 mm (2.6 in), 30 April 2004 Apr May: 49.9 mm (2.0 in), 27 May 2014 May Jun: 53.3 mm (2.1 in), 16 June 1965 Jun Jul: 81.0 mm (3.2 in), 3 July 1952 Jul Aug: 50.5 mm (2.0 in), 21 August 2006 Aug Sep: 40.2 mm (1.6 in), 30 September 1978 Sep Oct: 44.6 mm (1.8 in), 12 October 1960 Oct Nov: 43.4 mm (1.7 in), 25 November 2005 Nov Dec: 43.3 mm (1.7 in), 30 December 1993 Dec
The wettest day on record for each calendar month at Groot Ammers. The most was 81.0 mm (3.2 in) on 3 July 1952.
Record daily precipitation for each month at Groot Ammers
MonthRecord daily precipitation (mm)Date
Jan31.4 mm (1.2 in)3 January 1983
Feb33.8 mm (1.3 in)6 February 1984
Mar37.2 mm (1.5 in)6 March 1998
Apr67.2 mm (2.6 in)30 April 2004
May49.9 mm (2.0 in)27 May 2014
Jun53.3 mm (2.1 in)16 June 1965
Jul81.0 mm (3.2 in)3 July 1952
Aug50.5 mm (2.0 in)21 August 2006
Sep40.2 mm (1.6 in)30 September 1978
Oct44.6 mm (1.8 in)12 October 1960
Nov43.4 mm (1.7 in)25 November 2005
Dec43.3 mm (1.7 in)30 December 1993

Latest Records

20
Latest records at Groot Ammers
DateStationRecordValueBeat old record byOld record stoodSignificance
27 June 2026Groot Ammers, NLdaily rain37.0 mm (1.5 in)18.5 mm (0.7 in)60 years53 of 100 (Notable)
19 June 2026Groot Ammers, NLdaily rain31.5 mm (1.2 in)5.0 mm (0.20 in)49 years28 of 100 (Routine)
16 February 2026Groot Ammers, NLdaily rain13.4 mm (0.5 in)2.0 mm (0.08 in)6 years12 of 100 (Routine)
5 January 2026Groot Ammers, NLmonthly snow depth20.0 cm (7.9 in)5.0 cm (2.0 in)67 years50 of 100 (Notable)
4 January 2026Groot Ammers, NLmonthly snow depth (Tie)15.0 cm (5.9 in)tie67 years9 of 100 (Routine)
3 October 2025Groot Ammers, NLdaily rain30.2 mm (1.2 in)9.2 mm (0.36 in)12 years25 of 100 (Routine)
21 July 2025Groot Ammers, NLdaily rain20.5 mm (0.8 in)2.8 mm (0.11 in)16 years14 of 100 (Routine)
20 April 2025Groot Ammers, NLdaily rain9.7 mm (0.38 in)1.4 mm (0.06 in)52 years20 of 100 (Routine)
5 December 2024Groot Ammers, NLdaily rain25.1 mm (1.0 in)10.9 mm (0.4 in)59 years45 of 100 (Notable)
20 November 2024Groot Ammers, NLdaily rain18.6 mm (0.7 in)5.4 mm (0.21 in)47 years20 of 100 (Routine)
10 September 2024Groot Ammers, NLdaily rain33.1 mm (1.3 in)6.2 mm (0.24 in)11 years19 of 100 (Routine)
28 May 2024Groot Ammers, NLdaily rain22.8 mm (0.9 in)5.7 mm (0.22 in)37 years20 of 100 (Routine)
24 May 2024Groot Ammers, NLdaily rain13.3 mm (0.5 in)1.0 mm (0.04 in)57 years20 of 100 (Routine)
21 May 2024Groot Ammers, NLdaily rain (Tie)38.2 mm (1.5 in)tie40 years4 of 100 (Routine)
15 April 2024Groot Ammers, NLdaily rain13.8 mm (0.5 in)2.0 mm (0.08 in)8 years13 of 100 (Routine)
18 February 2024Groot Ammers, NLdaily rain10.0 mm (0.4 in)1.4 mm (0.06 in)69 years20 of 100 (Routine)
8 February 2024Groot Ammers, NLdaily rain22.4 mm (0.9 in)8.4 mm (0.33 in)49 years20 of 100 (Routine)
1 January 2024Groot Ammers, NLdaily rain17.0 mm (0.7 in)0.2 mm (0.01 in)20 years13 of 100 (Routine)
13 October 2023Groot Ammers, NLdaily rain30.0 mm (1.2 in)1.1 mm (0.04 in)9 years10 of 100 (Routine)
9 May 2023Groot Ammers, NLdaily rain15.3 mm (0.6 in)1.1 mm (0.04 in)60 years20 of 100 (Routine)

Extremes by Year

1950 to 2026
Yearly extremes at Groot Ammers: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)81.0 mm (3.2 in)195233.2 mm (1.3 in)77
Wettest five days (Rx5day)113.4 mm (4.5 in)200763.1 mm (2.5 in)76
Longest dry spell (CDD)45 days200721 days77

Wettest day (Rx1day)

Wettest day (Rx1day) at Groot Ammers by year The wettest day of the year at Groot Ammers, 1950 to 2026. The record is 81.0 mm (3.2 in) in 1952, marked on the chart; the median year is 33.2 mm (1.3 in). 02550751001960198020002020Record: 81.0 mm (3.2 in) in 1952
The wettest day of the year at Groot Ammers, 1950 to 2026. The record is 81.0 mm (3.2 in) in 1952, marked on the chart; the median year is 33.2 mm (1.3 in).
Wettest day (Rx1day) at Groot Ammers by year
YearWettest day (Rx1day)
19500.4 mm (0.02 in)
195119.0 mm (0.7 in)
195281.0 mm (3.2 in)
195351.4 mm (2.0 in)
195445.2 mm (1.8 in)
195530.2 mm (1.2 in)
195634.5 mm (1.4 in)
195731.5 mm (1.2 in)
195837.9 mm (1.5 in)
195920.7 mm (0.8 in)
196044.6 mm (1.8 in)
196137.4 mm (1.5 in)
196227.0 mm (1.1 in)
196336.8 mm (1.4 in)
196438.5 mm (1.5 in)
196553.3 mm (2.1 in)
196628.2 mm (1.1 in)
196724.2 mm (1.0 in)
196830.5 mm (1.2 in)
196930.7 mm (1.2 in)
197031.8 mm (1.3 in)
197124.6 mm (1.0 in)
197233.2 mm (1.3 in)
197328.5 mm (1.1 in)
197434.1 mm (1.3 in)
197541.8 mm (1.6 in)
197626.5 mm (1.0 in)
197723.0 mm (0.9 in)
197840.2 mm (1.6 in)
197928.1 mm (1.1 in)
198019.0 mm (0.7 in)
198134.1 mm (1.3 in)
198235.2 mm (1.4 in)
198336.8 mm (1.4 in)
198438.2 mm (1.5 in)
198536.4 mm (1.4 in)
198625.1 mm (1.0 in)
198729.3 mm (1.2 in)
198829.2 mm (1.1 in)
198926.2 mm (1.0 in)
199021.9 mm (0.9 in)
199123.4 mm (0.9 in)
199235.7 mm (1.4 in)
199343.3 mm (1.7 in)
199432.2 mm (1.3 in)
199538.6 mm (1.5 in)
199624.8 mm (1.0 in)
199729.4 mm (1.2 in)
199837.2 mm (1.5 in)
199925.1 mm (1.0 in)
200035.9 mm (1.4 in)
200137.3 mm (1.5 in)
200236.2 mm (1.4 in)
200322.4 mm (0.9 in)
200467.2 mm (2.6 in)
200543.4 mm (1.7 in)
200650.5 mm (2.0 in)
200760.2 mm (2.4 in)
200827.1 mm (1.1 in)
200932.3 mm (1.3 in)
201061.7 mm (2.4 in)
201144.4 mm (1.7 in)
201230.6 mm (1.2 in)
201333.3 mm (1.3 in)
201449.9 mm (2.0 in)
201525.7 mm (1.0 in)
201622.8 mm (0.9 in)
201733.2 mm (1.3 in)
201843.3 mm (1.7 in)
201942.0 mm (1.7 in)
202028.1 mm (1.1 in)
202120.5 mm (0.8 in)
202235.4 mm (1.4 in)
202330.0 mm (1.2 in)
202438.2 mm (1.5 in)
202530.2 mm (1.2 in)
202637.0 mm (1.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Groot Ammers by year The wettest five days of the year at Groot Ammers, 1950 to 2026. The record is 113.4 mm (4.5 in) in 2007, marked on the chart; the median year is 63.1 mm (2.5 in). 4060801001201960198020002020Record: 113.4 mm (4.5 in) in 2007
The wettest five days of the year at Groot Ammers, 1950 to 2026. The record is 113.4 mm (4.5 in) in 2007, marked on the chart; the median year is 63.1 mm (2.5 in).
Wettest five days (Rx5day) at Groot Ammers by year
YearWettest five days (Rx5day)
1950n/a
195152.0 mm (2.0 in)
195281.8 mm (3.2 in)
1953112.1 mm (4.4 in)
195465.2 mm (2.6 in)
195555.1 mm (2.2 in)
195661.3 mm (2.4 in)
195790.5 mm (3.6 in)
195868.3 mm (2.7 in)
195953.7 mm (2.1 in)
196086.1 mm (3.4 in)
196182.6 mm (3.3 in)
196255.6 mm (2.2 in)
196371.2 mm (2.8 in)
196457.3 mm (2.3 in)
196564.6 mm (2.5 in)
196695.3 mm (3.8 in)
196749.9 mm (2.0 in)
196865.0 mm (2.6 in)
196963.1 mm (2.5 in)
197054.0 mm (2.1 in)
197159.0 mm (2.3 in)
197252.9 mm (2.1 in)
197361.7 mm (2.4 in)
197463.1 mm (2.5 in)
197551.9 mm (2.0 in)
197642.2 mm (1.7 in)
197761.3 mm (2.4 in)
197877.7 mm (3.1 in)
197966.9 mm (2.6 in)
198047.4 mm (1.9 in)
198186.0 mm (3.4 in)
198286.3 mm (3.4 in)
198388.4 mm (3.5 in)
198489.9 mm (3.5 in)
198552.0 mm (2.0 in)
198687.1 mm (3.4 in)
198771.9 mm (2.8 in)
198857.6 mm (2.3 in)
198952.5 mm (2.1 in)
199044.8 mm (1.8 in)
199155.1 mm (2.2 in)
199261.1 mm (2.4 in)
199362.2 mm (2.4 in)
199475.2 mm (3.0 in)
199584.6 mm (3.3 in)
199644.2 mm (1.7 in)
199769.3 mm (2.7 in)
1998100.8 mm (4.0 in)
199957.5 mm (2.3 in)
200059.1 mm (2.3 in)
200172.4 mm (2.9 in)
200262.9 mm (2.5 in)
200352.0 mm (2.0 in)
200479.4 mm (3.1 in)
200581.1 mm (3.2 in)
200663.0 mm (2.5 in)
2007113.4 mm (4.5 in)
200852.0 mm (2.0 in)
200963.9 mm (2.5 in)
201087.0 mm (3.4 in)
2011103.8 mm (4.1 in)
201262.8 mm (2.5 in)
201398.1 mm (3.9 in)
201480.1 mm (3.2 in)
201555.2 mm (2.2 in)
201644.8 mm (1.8 in)
201764.1 mm (2.5 in)
201860.8 mm (2.4 in)
201967.7 mm (2.7 in)
202048.6 mm (1.9 in)
202162.8 mm (2.5 in)
202261.8 mm (2.4 in)
202375.5 mm (3.0 in)
202476.4 mm (3.0 in)
202550.2 mm (2.0 in)
202640.1 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Groot Ammers by year The longest dry spell of the year at Groot Ammers, 1950 to 2026. The record is 45 days in 2007, marked on the chart; the median year is 21 days. 02040601960198020002020Record: 45 days in 2007
The longest dry spell of the year at Groot Ammers, 1950 to 2026. The record is 45 days in 2007, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Groot Ammers by year
YearLongest dry spell (CDD)
19501 day
195124 days
195216 days
195330 days
195418 days
195516 days
195624 days
195715 days
195830 days
195929 days
196014 days
196119 days
196221 days
196334 days
196418 days
196528 days
196616 days
196716 days
196821 days
196924 days
197025 days
197121 days
197231 days
197321 days
197417 days
197524 days
197626 days
197721 days
197820 days
197913 days
198021 days
198120 days
198216 days
198318 days
198426 days
198521 days
198635 days
198715 days
198825 days
198920 days
199018 days
199127 days
199221 days
199316 days
199416 days
199527 days
199629 days
199720 days
199817 days
199920 days
200017 days
200118 days
200219 days
200329 days
200417 days
200516 days
200619 days
200745 days
200818 days
200918 days
201013 days
201125 days
201231 days
201323 days
201424 days
201520 days
201618 days
201722 days
201828 days
201920 days
202044 days
202119 days
202232 days
202338 days
202412 days
202543 days
202623 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

75 years, 1951 to 2025

A day with at least 32.6 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 73.2 mm (2.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Groot Ammers: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years32.6 mm (1.3 in)
5 years42.2 mm (1.7 in)
10 years49.0 mm (1.9 in)
25 years58.2 mm (2.3 in)
50 years65.5 mm (2.6 in)
100 years73.2 mm (2.9 in)Longer than the 75 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, 75 years of values from 1951 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: 81.0 mm (3.2 in) in 1952; 67.2 mm (2.6 in) in 2004; 61.7 mm (2.4 in) in 2010.

Download the Data

  • Data for Groot Ammers standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Groot Ammers 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).