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

Hellero Weather Records (SWE00138312)

Record envelope, standing records and threshold days for Hellero (SWE00138312), Sweden, with 36 years of record.

Key Facts for Hellero

  • Hellero (SWE00138312) is a weather station in Sweden at 57.95 latitude and 16.65 longitude, 10 m (33 ft) above sea level.
  • The station reports from 1991 to 2026, 36 years of record.
  • 0 records set at Hellero still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Hellero set a daily record precipitation of 23.5 mm (0.9 in) on 18 July 2026.

About the Station

  • Location: Sweden, 57.95 latitude, 16.65 longitude.
  • Elevation: 10 m (33 ft).
  • Period of record: 1991 to 2026, 36 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

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

Which Years Hold Standing Records

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

Wettest Day of Each Month

Aug: 91.8 mm (3.6 in)
Record daily precipitation for each month at Hellero The wettest day on record for each calendar month at Hellero. The most was 91.8 mm (3.6 in) on 31 August 2018. 0255075100 Jan: 22.9 mm (0.9 in), 4 January 2023 Jan Feb: 27.1 mm (1.1 in), 2 February 2018 Feb Mar: 25.0 mm (1.0 in), 4 March 1999 Mar Apr: 32.7 mm (1.3 in), 2 April 2024 Apr May: 40.8 mm (1.6 in), 27 May 2002 May Jun: 33.2 mm (1.3 in), 7 June 1998 Jun Jul: 64.4 mm (2.5 in), 2 July 2003 Jul Aug: 91.8 mm (3.6 in), 31 August 2018 Aug Sep: 67.3 mm (2.6 in), 3 September 2017 Sep Oct: 28.6 mm (1.1 in), 22 October 2016 Oct Nov: 39.2 mm (1.5 in), 5 November 2014 Nov Dec: 31.0 mm (1.2 in), 4 December 2012 Dec
The wettest day on record for each calendar month at Hellero. The most was 91.8 mm (3.6 in) on 31 August 2018.
Record daily precipitation for each month at Hellero
MonthRecord daily precipitation (mm)Date
Jan22.9 mm (0.9 in)4 January 2023
Feb27.1 mm (1.1 in)2 February 2018
Mar25.0 mm (1.0 in)4 March 1999
Apr32.7 mm (1.3 in)2 April 2024
May40.8 mm (1.6 in)27 May 2002
Jun33.2 mm (1.3 in)7 June 1998
Jul64.4 mm (2.5 in)2 July 2003
Aug91.8 mm (3.6 in)31 August 2018
Sep67.3 mm (2.6 in)3 September 2017
Oct28.6 mm (1.1 in)22 October 2016
Nov39.2 mm (1.5 in)5 November 2014
Dec31.0 mm (1.2 in)4 December 2012

Latest Records

20
Latest records at Hellero
DateStationRecordValueBeat old record byOld record stoodSignificance
18 July 2026Hellero, SEdaily rain23.5 mm (0.9 in)8.7 mm (0.34 in)16 years18 of 100 (Routine)
15 May 2026Hellero, SEdaily rain17.0 mm (0.7 in)3.4 mm (0.13 in)9 years12 of 100 (Routine)
11 May 2026Hellero, SEdaily rain6.4 mm (0.25 in)2.4 mm (0.09 in)28 years16 of 100 (Routine)
3 April 2026Hellero, SEdaily rain3.1 mm (0.12 in)1.7 mm (0.07 in)28 years14 of 100 (Routine)
14 March 2026Hellero, SEdaily rain13.7 mm (0.5 in)7.5 mm (0.30 in)20 years20 of 100 (Routine)
3 January 2026Hellero, SEdaily rain11.9 mm (0.5 in)3.9 mm (0.15 in)0 years12 of 100 (Routine)
2 January 2026Hellero, SEdaily rain (Tie)7.0 mm (0.28 in)tie3 years0 of 100 (Routine)
9 December 2025Hellero, SEdaily rain9.8 mm (0.39 in)0.1 mm (0.00 in)4 years4 of 100 (Routine)
11 September 2025Hellero, SEdaily rain30.8 mm (1.2 in)13.5 mm (0.5 in)14 years24 of 100 (Routine)
23 June 2025Hellero, SEdaily rain18.8 mm (0.7 in)6.1 mm (0.24 in)22 years19 of 100 (Routine)
12 March 2025Hellero, SEdaily rain9.2 mm (0.36 in)1.8 mm (0.07 in)7 years9 of 100 (Routine)
6 January 2025Hellero, SEdaily rain14.4 mm (0.6 in)0.3 mm (0.01 in)24 years10 of 100 (Routine)
3 January 2025Hellero, SEdaily rain8.0 mm (0.31 in)0.2 mm (0.01 in)7 years5 of 100 (Routine)
9 October 2024Hellero, SEdaily rain15.8 mm (0.6 in)5.2 mm (0.20 in)8 years15 of 100 (Routine)
8 October 2024Hellero, SEdaily rain26.8 mm (1.1 in)14.2 mm (0.6 in)8 years34 of 100 (Routine)
13 July 2024Hellero, SEdaily rain56.0 mm (2.2 in)47.0 mm (1.9 in)23 years49 of 100 (Notable)
5 May 2024Hellero, SEdaily rain13.5 mm (0.5 in)2.7 mm (0.11 in)9 years10 of 100 (Routine)
2 April 2024Hellero, SEmonthly rain32.7 mm (1.3 in)5.6 mm (0.22 in)25 years31 of 100 (Routine)
12 February 2024Hellero, SEdaily rain13.5 mm (0.5 in)3.8 mm (0.15 in)18 years17 of 100 (Routine)
6 February 2024Hellero, SEdaily rain18.5 mm (0.7 in)5.3 mm (0.21 in)16 years20 of 100 (Routine)

Extremes by Year

1991 to 2026
Yearly extremes at Hellero: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)91.8 mm (3.6 in)201836.0 mm (1.4 in)36
Wettest five days (Rx5day)112.1 mm (4.4 in)199358.2 mm (2.3 in)36
Longest dry spell (CDD)52 days199223 days36

Wettest day (Rx1day)

Wettest day (Rx1day) at Hellero by year The wettest day of the year at Hellero, 1991 to 2026. The record is 91.8 mm (3.6 in) in 2018, marked on the chart; the median year is 36.0 mm (1.4 in). 020406080100200020102020Record: 91.8 mm (3.6 in) in 2018
The wettest day of the year at Hellero, 1991 to 2026. The record is 91.8 mm (3.6 in) in 2018, marked on the chart; the median year is 36.0 mm (1.4 in).
Wettest day (Rx1day) at Hellero by year
YearWettest day (Rx1day)
199139.1 mm (1.5 in)
199217.7 mm (0.7 in)
199346.5 mm (1.8 in)
199435.7 mm (1.4 in)
199536.3 mm (1.4 in)
199652.0 mm (2.0 in)
199722.8 mm (0.9 in)
199833.2 mm (1.3 in)
199926.3 mm (1.0 in)
200058.9 mm (2.3 in)
200127.5 mm (1.1 in)
200240.8 mm (1.6 in)
200364.4 mm (2.5 in)
200438.0 mm (1.5 in)
200542.2 mm (1.7 in)
200638.6 mm (1.5 in)
200729.4 mm (1.2 in)
200832.0 mm (1.3 in)
200929.7 mm (1.2 in)
201037.2 mm (1.5 in)
201127.8 mm (1.1 in)
201238.8 mm (1.5 in)
201325.2 mm (1.0 in)
201439.2 mm (1.5 in)
201533.0 mm (1.3 in)
201628.6 mm (1.1 in)
201767.3 mm (2.6 in)
201891.8 mm (3.6 in)
201923.8 mm (0.9 in)
202024.4 mm (1.0 in)
202146.6 mm (1.8 in)
202241.0 mm (1.6 in)
202335.5 mm (1.4 in)
202456.0 mm (2.2 in)
202530.8 mm (1.2 in)
202623.5 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hellero by year The wettest five days of the year at Hellero, 1991 to 2026. The record is 112.1 mm (4.4 in) in 1993, marked on the chart; the median year is 58.2 mm (2.3 in). 20406080100120200020102020Record: 112.1 mm (4.4 in) in 1993
The wettest five days of the year at Hellero, 1991 to 2026. The record is 112.1 mm (4.4 in) in 1993, marked on the chart; the median year is 58.2 mm (2.3 in).
Wettest five days (Rx5day) at Hellero by year
YearWettest five days (Rx5day)
199155.0 mm (2.2 in)
199234.5 mm (1.4 in)
1993112.1 mm (4.4 in)
199456.8 mm (2.2 in)
199566.4 mm (2.6 in)
199662.2 mm (2.4 in)
199746.7 mm (1.8 in)
199853.5 mm (2.1 in)
199951.6 mm (2.0 in)
200079.3 mm (3.1 in)
200156.1 mm (2.2 in)
200254.9 mm (2.2 in)
200389.4 mm (3.5 in)
200452.3 mm (2.1 in)
200557.1 mm (2.2 in)
200643.3 mm (1.7 in)
200759.2 mm (2.3 in)
200891.9 mm (3.6 in)
200960.4 mm (2.4 in)
201097.9 mm (3.9 in)
201169.3 mm (2.7 in)
201254.7 mm (2.2 in)
201341.9 mm (1.6 in)
201448.7 mm (1.9 in)
201560.2 mm (2.4 in)
201663.1 mm (2.5 in)
201789.4 mm (3.5 in)
2018103.6 mm (4.1 in)
201937.0 mm (1.5 in)
202035.0 mm (1.4 in)
202162.7 mm (2.5 in)
202260.0 mm (2.4 in)
202361.5 mm (2.4 in)
202469.1 mm (2.7 in)
202536.4 mm (1.4 in)
202641.9 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hellero by year The longest dry spell of the year at Hellero, 1991 to 2026. The record is 52 days in 1992, marked on the chart; the median year is 23 days. 0204060200020102020Record: 52 days in 1992
The longest dry spell of the year at Hellero, 1991 to 2026. The record is 52 days in 1992, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Hellero by year
YearLongest dry spell (CDD)
199111 days
199252 days
199330 days
199422 days
199528 days
199625 days
199727 days
199810 days
199920 days
200033 days
200119 days
200227 days
200334 days
200419 days
200522 days
200623 days
200718 days
200822 days
200924 days
201022 days
201126 days
201219 days
201321 days
201423 days
201541 days
201619 days
201717 days
201844 days
201941 days
202027 days
202128 days
202239 days
202331 days
202416 days
202523 days
202617 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

34 years, 1992 to 2025

A day with at least 35.0 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 97.1 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Hellero: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years35.0 mm (1.4 in)
5 years47.6 mm (1.9 in)
10 years57.4 mm (2.3 in)
25 years71.5 mm (2.8 in)
50 years83.6 mm (3.3 in)Longer than the 34 years of record
100 years97.1 mm (3.8 in)Longer than the 34 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, 34 years of values from 1992 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: 91.8 mm (3.6 in) in 2018; 67.3 mm (2.6 in) in 2017; 64.4 mm (2.5 in) in 2003.

Download the Data

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