Built 2026-10-19 (19 October 2026)

Norrkoping-Smhi Weather Records (SWE00138568)

Record envelope, standing records and threshold days for Norrkoping-Smhi (SWE00138568), Sweden, with 34 years of record.

Key Facts for Norrkoping-Smhi

  • Norrkoping-Smhi (SWE00138568) is a weather station in Sweden at 58.58 latitude and 16.15 longitude, 21 m (69 ft) above sea level.
  • The station reports from 1993 to 2026, 34 years of record.
  • 1,464 records set at Norrkoping-Smhi still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Norrkoping-Smhi set a daily record high maximum temperature of 30.8 C (87.4 F) on 15 August 2026.

About the Station

  • Location: Sweden, 58.58 latitude, 16.15 longitude.
  • Elevation: 21 m (69 ft).
  • Period of record: 1993 to 2026, 34 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

16 days at or beyond a record
Daily record high and record low at Norrkoping-Smhi, with 2026 drawn through them The band shows the record high and record low for each calendar day at Norrkoping-Smhi. The lines show the 2026 daily maximum and minimum. 16 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 Norrkoping-Smhi. The lines show the 2026 daily maximum and minimum. 16 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Norrkoping-Smhi, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.1 C (53.8 F)-24.0 C (-11.2 F)5.0 C (41.0 F)-10.0 C (14.0 F)
Feb13.1 C (55.6 F)-25.7 C (-14.3 F)9.4 C (48.9 F)-17.0 C (1.4 F)
Mar19.3 C (66.7 F)-19.4 C (-2.9 F)15.0 C (59.0 F)-2.0 C (28.4 F)
Apr26.1 C (79.0 F)-9.0 C (15.8 F)23.3 C (73.9 F)-3.6 C (25.5 F)
May28.6 C (83.5 F)-3.7 C (25.3 F)25.3 C (77.5 F)-1.5 C (29.3 F)
Jun33.3 C (91.9 F)-0.1 C (31.8 F)30.1 C (86.2 F)7.8 C (46.0 F)
Jul35.6 C (96.1 F)5.4 C (41.7 F)32.8 C (91.0 F)7.6 C (45.7 F)
Aug33.0 C (91.4 F)2.3 C (36.1 F)30.8 C (87.4 F)7.3 C (45.1 F)
Sep28.0 C (82.4 F)-3.1 C (26.4 F)n/an/a
Oct23.0 C (73.4 F)-8.5 C (16.7 F)n/an/a
Nov17.2 C (63.0 F)-12.4 C (9.7 F)n/an/a
Dec13.3 C (55.9 F)-24.7 C (-12.5 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Norrkoping-Smhi by the year they were set 1,464 records at Norrkoping-Smhi still stand. 2010 holds the most, with 72. 0204060801993: 461994: 461995: 461996: 551997: 541998: 481999: 362000: 382001: 372002: 462003: 392004: 342005: 472006: 642007: 402008: 322009: 272010: 722011: 342012: 392013: 412014: 392015: 362016: 432017: 352018: 612019: 452020: 522021: 392022: 442023: 332024: 492025: 412026: 26199319972001200520092013201720212025
1,464 records at Norrkoping-Smhi still stand. 2010 holds the most, with 72.
Standing records at Norrkoping-Smhi by the year they were set
Year setStanding records
199346
199446
199546
199655
199754
199848
199936
200038
200137
200246
200339
200434
200547
200664
200740
200832
200927
201072
201134
201239
201341
201439
201536
201643
201735
201861
201945
202052
202139
202244
202333
202449
202541
202626

All-Time Record Progression

1 new records
When Norrkoping-Smhi set new all-time records 1 all-time records were set at Norrkoping-Smhi between 6 August 2023 and 6 August 2023. Each dot is a new record. Record daily precipitation6 August 2023: Record daily precipitation 46.3 mm (1.8 in)
1 all-time records were set at Norrkoping-Smhi between 6 August 2023 and 6 August 2023. Each dot is a new record.
When Norrkoping-Smhi set new all-time records
DateKindDetail
2023-08-06Record daily precipitationRecord daily precipitation 46.3 mm (1.8 in)

Wettest Day of Each Month

Aug: 46.3 mm (1.8 in)
Record daily precipitation for each month at Norrkoping-Smhi The wettest day on record for each calendar month at Norrkoping-Smhi. The most was 46.3 mm (1.8 in) on 6 August 2023. 0204060 Jan: 20.5 mm (0.8 in), 27 January 2010 Jan Feb: 17.3 mm (0.7 in), 6 February 2006 Feb Mar: 13.5 mm (0.5 in), 17 March 2008 Mar Apr: 19.8 mm (0.8 in), 30 April 2003 Apr May: 43.7 mm (1.7 in), 27 May 2002 May Jun: 44.4 mm (1.7 in), 28 June 2024 Jun Jul: 43.1 mm (1.7 in), 22 July 2011 Jul Aug: 46.3 mm (1.8 in), 6 August 2023 Aug Sep: 40.0 mm (1.6 in), 2 September 2000 Sep Oct: 25.2 mm (1.0 in), 22 October 2016 Oct Nov: 38.9 mm (1.5 in), 27 November 2012 Nov Dec: 22.3 mm (0.9 in), 28 December 2000 Dec
The wettest day on record for each calendar month at Norrkoping-Smhi. The most was 46.3 mm (1.8 in) on 6 August 2023.
Record daily precipitation for each month at Norrkoping-Smhi
MonthRecord daily precipitation (mm)Date
Jan20.5 mm (0.8 in)27 January 2010
Feb17.3 mm (0.7 in)6 February 2006
Mar13.5 mm (0.5 in)17 March 2008
Apr19.8 mm (0.8 in)30 April 2003
May43.7 mm (1.7 in)27 May 2002
Jun44.4 mm (1.7 in)28 June 2024
Jul43.1 mm (1.7 in)22 July 2011
Aug46.3 mm (1.8 in)6 August 2023
Sep40.0 mm (1.6 in)2 September 2000
Oct25.2 mm (1.0 in)22 October 2016
Nov38.9 mm (1.5 in)27 November 2012
Dec22.3 mm (0.9 in)28 December 2000

Period of Record Coverage

1993 to 2026
Days with data per year at Norrkoping-Smhi 34 years of record at Norrkoping-Smhi, 1993 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1993, 2026. 1993: 247 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 243 of 365 days1995200020052010201520202025
34 years of record at Norrkoping-Smhi, 1993 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1993, 2026.
Days with data per year at Norrkoping-Smhi
YearDays with dataShare of yearComplete
199324768%No
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202624367%No

Latest Records

20
Latest records at Norrkoping-Smhi
DateStationRecordValueBeat old record byOld record stoodSignificance
15 August 2026Norrkoping-Smhi, SEdaily high max30.8 C (87.4 F)0.6 C (1.1 F)5 years5 of 100 (Routine)
14 August 2026Norrkoping-Smhi, SEdaily high max30.1 C (86.2 F)0.4 C (0.7 F)0 years4 of 100 (Routine)
30 July 2026Norrkoping-Smhi, SEdaily high max31.4 C (88.5 F)2.2 C (4.0 F)31 years17 of 100 (Routine)
23 July 2026Norrkoping-Smhi, SEdaily low min9.3 C (48.7 F)0.3 C (0.5 F)3 years4 of 100 (Routine)
19 July 2026Norrkoping-Smhi, SEdaily low max15.1 C (59.2 F)2.7 C (4.9 F)13 years14 of 100 (Routine)
18 July 2026Norrkoping-Smhi, SEdaily rain22.6 mm (0.9 in)8.2 mm (0.32 in)28 years20 of 100 (Routine)
17 July 2026Norrkoping-Smhi, SEdaily high max31.5 C (88.7 F)0.8 C (1.4 F)8 years7 of 100 (Routine)
6 July 2026Norrkoping-Smhi, SEdaily low min7.6 C (45.7 F)0.1 C (0.2 F)32 years12 of 100 (Routine)
29 June 2026Norrkoping-Smhi, SEdaily high min18.2 C (64.8 F)1.5 C (2.7 F)3 years8 of 100 (Routine)
28 June 2026Norrkoping-Smhi, SEmonthly high min19.2 C (66.6 F)0.9 C (1.6 F)24 years23 of 100 (Routine)
14 June 2026Norrkoping-Smhi, SEdaily low max (Tie)16.8 C (62.2 F)tie1 year0 of 100 (Routine)
13 June 2026Norrkoping-Smhi, SEdaily rain20.9 mm (0.8 in)7.3 mm (0.29 in)11 years18 of 100 (Routine)
9 June 2026Norrkoping-Smhi, SEdaily rain10.8 mm (0.4 in)2.0 mm (0.08 in)28 years14 of 100 (Routine)
4 June 2026Norrkoping-Smhi, SEdaily rain9.7 mm (0.38 in)3.3 mm (0.13 in)8 years10 of 100 (Routine)
15 May 2026Norrkoping-Smhi, SEdaily rain17.6 mm (0.7 in)8.2 mm (0.32 in)23 years20 of 100 (Routine)
13 May 2026Norrkoping-Smhi, SEdaily low max7.9 C (46.2 F)0.9 C (1.6 F)31 years14 of 100 (Routine)
3 May 2026Norrkoping-Smhi, SEdaily high max21.2 C (70.2 F)0.1 C (0.2 F)24 years10 of 100 (Routine)
3 May 2026Norrkoping-Smhi, SEdaily high min9.2 C (48.6 F)1.0 C (1.8 F)17 years10 of 100 (Routine)
2 May 2026Norrkoping-Smhi, SEdaily high max24.8 C (76.6 F)3.3 C (5.9 F)32 years19 of 100 (Routine)
1 May 2026Norrkoping-Smhi, SEdaily high max25.3 C (77.5 F)2.7 C (4.9 F)28 years17 of 100 (Routine)

Climate Trend

32 complete years, 1994 to 2025
Annual mean temperature at Norrkoping-Smhi as warming stripes, 1994 to 2025 One stripe for each of 32 complete years at Norrkoping-Smhi, 1994 to 2025. Blue stripes are years cooler than the station's own mean of 7.8 C (46.0 F); red stripes are warmer. The coolest year was 2010, at 5.4 C (41.7 F), and the warmest was 2020, at 9.6 C (49.4 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1994: 6.9 C, -0.8 C from the station mean1995: 6.7 C, -1.0 C from the station mean1996: 5.8 C, -2.0 C from the station mean1997: 7.3 C, -0.5 C from the station mean1998: 6.5 C, -1.2 C from the station mean1999: 7.6 C, -0.1 C from the station mean2000: 8.2 C, +0.4 C from the station mean2001: 7.1 C, -0.7 C from the station mean2002: 7.7 C, 0.0 C from the station mean2003: 7.2 C, -0.6 C from the station mean2004: 7.3 C, -0.5 C from the station mean2005: 7.4 C, -0.3 C from the station mean2006: 7.9 C, +0.1 C from the station mean2007: 8.0 C, +0.3 C from the station mean2008: 8.1 C, +0.3 C from the station mean2009: 7.3 C, -0.5 C from the station mean2010: 5.4 C, -2.4 C from the station mean2011: 8.1 C, +0.4 C from the station mean2012: 7.2 C, -0.6 C from the station mean2013: 7.5 C, -0.3 C from the station mean2014: 8.7 C, +1.0 C from the station mean2015: 8.6 C, +0.8 C from the station mean2016: 8.2 C, +0.4 C from the station mean2017: 8.0 C, +0.3 C from the station mean2018: 8.6 C, +0.8 C from the station mean2019: 8.6 C, +0.9 C from the station mean2020: 9.6 C, +1.9 C from the station mean2021: 8.0 C, +0.2 C from the station mean2022: 8.8 C, +1.1 C from the station mean2023: 8.1 C, +0.3 C from the station mean2024: 8.7 C, +0.9 C from the station mean2025: 9.2 C, +1.5 C from the station mean1994200020052010201520202025
One stripe for each of 32 complete years at Norrkoping-Smhi, 1994 to 2025. Blue stripes are years cooler than the station's own mean of 7.8 C (46.0 F); red stripes are warmer. The coolest year was 2010, at 5.4 C (41.7 F), and the warmest was 2020, at 9.6 C (49.4 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Norrkoping-Smhi as warming stripes, 1994 to 2025
YearAnnual mean temperatureDifference from the station mean
19946.9 C-0.84 C
19956.7 C-1.02 C
19965.8 C-1.98 C
19977.3 C-0.47 C
19986.5 C-1.22 C
19997.6 C-0.14 C
20008.2 C+0.40 C
20017.1 C-0.70 C
20027.7 C-0.04 C
20037.2 C-0.56 C
20047.3 C-0.51 C
20057.4 C-0.33 C
20067.9 C+0.10 C
20078.0 C+0.25 C
20088.1 C+0.31 C
20097.3 C-0.51 C
20105.4 C-2.36 C
20118.1 C+0.35 C
20127.2 C-0.61 C
20137.5 C-0.31 C
20148.7 C+0.97 C
20158.6 C+0.83 C
20168.2 C+0.43 C
20178.0 C+0.28 C
20188.6 C+0.84 C
20198.6 C+0.87 C
20209.6 C+1.88 C
20218.0 C+0.23 C
20228.8 C+1.05 C
20238.1 C+0.33 C
20248.7 C+0.93 C
20259.2 C+1.46 C

The annual mean temperature here has risen by 0.7 C (0.4 to 1.0) per decade over 1994 to 2025. In Fahrenheit: 1.2 F (0.8 to 1.7) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Norrkoping-Smhi
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.7 C (0.4 to 1.0) per decade1.2 F (0.8 to 1.7) per decade1994 to 202532Rise
Mean daily maximum0.7 C (0.4 to 1.0) per decade1.2 F (0.7 to 1.8) per decade1994 to 202532Rise
Mean daily minimum0.7 C (0.4 to 0.9) per decade1.2 F (0.7 to 1.7) per decade1994 to 202532Rise

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

1993 to 2026
Yearly extremes at Norrkoping-Smhi: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.6 C (96.1 F)202230.1 C (86.2 F)34
Coldest night (TNn)-25.7 C (-14.3 F)2010-18.0 C (-0.5 F)34
Wettest day (Rx1day)46.3 mm (1.8 in)202328.5 mm (1.1 in)34
Wettest five days (Rx5day)80.3 mm (3.2 in)200647.5 mm (1.9 in)34
Longest dry spell (CDD)44 days199424 days34

Hottest day (TXx)

Hottest day (TXx) at Norrkoping-Smhi by year The hottest day of the year at Norrkoping-Smhi, 1993 to 2026. The record is 35.6 C (96.1 F) in 2022, marked on the chart; the median year is 30.1 C (86.2 F). 2527.53032.53537.5200020102020Record: 35.6 C (96.1 F) in 2022
The hottest day of the year at Norrkoping-Smhi, 1993 to 2026. The record is 35.6 C (96.1 F) in 2022, marked on the chart; the median year is 30.1 C (86.2 F).
Hottest day (TXx) at Norrkoping-Smhi by year
YearHottest day (TXx)
199326.7 C (80.1 F)
199433.9 C (93.0 F)
199530.3 C (86.5 F)
199628.2 C (82.8 F)
199729.7 C (85.5 F)
199825.6 C (78.1 F)
199930.8 C (87.4 F)
200028.0 C (82.4 F)
200130.0 C (86.0 F)
200229.2 C (84.6 F)
200329.1 C (84.4 F)
200429.5 C (85.1 F)
200530.2 C (86.4 F)
200631.3 C (88.3 F)
200730.8 C (87.4 F)
200829.6 C (85.3 F)
200929.9 C (85.8 F)
201033.8 C (92.8 F)
201128.4 C (83.1 F)
201226.9 C (80.4 F)
201328.5 C (83.3 F)
201432.5 C (90.5 F)
201529.5 C (85.1 F)
201632.7 C (90.9 F)
201728.6 C (83.5 F)
201833.5 C (92.3 F)
201931.7 C (89.1 F)
202031.3 C (88.3 F)
202133.3 C (91.9 F)
202235.6 C (96.1 F)
202330.2 C (86.4 F)
202429.1 C (84.4 F)
202530.8 C (87.4 F)
202632.8 C (91.0 F)

Coldest night (TNn)

Coldest night (TNn) at Norrkoping-Smhi by year The coldest night of the year at Norrkoping-Smhi, 1993 to 2026. The record is -25.7 C (-14.3 F) in 2010, marked on the chart; the median year is -18.0 C (-0.5 F). -30-25-20-15-10-5200020102020Record: -25.7 C (-14.3 F) in 2010
The coldest night of the year at Norrkoping-Smhi, 1993 to 2026. The record is -25.7 C (-14.3 F) in 2010, marked on the chart; the median year is -18.0 C (-0.5 F).
Coldest night (TNn) at Norrkoping-Smhi by year
YearColdest night (TNn)
1993-11.2 C (11.8 F)
1994-22.0 C (-7.6 F)
1995-19.9 C (-3.8 F)
1996-23.6 C (-10.5 F)
1997-20.4 C (-4.7 F)
1998-13.5 C (7.7 F)
1999-19.2 C (-2.6 F)
2000-16.7 C (1.9 F)
2001-21.5 C (-6.7 F)
2002-21.8 C (-7.2 F)
2003-23.4 C (-10.1 F)
2004-18.9 C (-2.0 F)
2005-19.4 C (-2.9 F)
2006-18.6 C (-1.5 F)
2007-14.8 C (5.4 F)
2008-10.5 C (13.1 F)
2009-17.0 C (1.4 F)
2010-25.7 C (-14.3 F)
2011-22.9 C (-9.2 F)
2012-20.1 C (-4.2 F)
2013-20.8 C (-5.4 F)
2014-15.7 C (3.7 F)
2015-9.2 C (15.4 F)
2016-17.9 C (-0.2 F)
2017-18.2 C (-0.8 F)
2018-14.3 C (6.3 F)
2019-11.1 C (12.0 F)
2020-7.2 C (19.0 F)
2021-17.4 C (0.7 F)
2022-10.6 C (12.9 F)
2023-12.1 C (10.2 F)
2024-18.9 C (-2.0 F)
2025-11.5 C (11.3 F)
2026-17.0 C (1.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Norrkoping-Smhi by year The wettest day of the year at Norrkoping-Smhi, 1993 to 2026. The record is 46.3 mm (1.8 in) in 2023, marked on the chart; the median year is 28.5 mm (1.1 in). 1020304050200020102020Record: 46.3 mm (1.8 in) in 2023
The wettest day of the year at Norrkoping-Smhi, 1993 to 2026. The record is 46.3 mm (1.8 in) in 2023, marked on the chart; the median year is 28.5 mm (1.1 in).
Wettest day (Rx1day) at Norrkoping-Smhi by year
YearWettest day (Rx1day)
199327.7 mm (1.1 in)
199420.0 mm (0.8 in)
199521.1 mm (0.8 in)
199630.5 mm (1.2 in)
199722.2 mm (0.9 in)
199818.1 mm (0.7 in)
199916.8 mm (0.7 in)
200040.0 mm (1.6 in)
200120.7 mm (0.8 in)
200243.7 mm (1.7 in)
200332.9 mm (1.3 in)
200439.6 mm (1.6 in)
200522.4 mm (0.9 in)
200635.3 mm (1.4 in)
200724.4 mm (1.0 in)
200838.2 mm (1.5 in)
200926.2 mm (1.0 in)
201023.6 mm (0.9 in)
201143.1 mm (1.7 in)
201238.9 mm (1.5 in)
201320.7 mm (0.8 in)
201421.3 mm (0.8 in)
201529.2 mm (1.1 in)
201625.2 mm (1.0 in)
201734.6 mm (1.4 in)
201839.6 mm (1.6 in)
201926.7 mm (1.1 in)
202034.7 mm (1.4 in)
202125.9 mm (1.0 in)
202232.3 mm (1.3 in)
202346.3 mm (1.8 in)
202444.4 mm (1.7 in)
202530.9 mm (1.2 in)
202622.6 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Norrkoping-Smhi by year The wettest five days of the year at Norrkoping-Smhi, 1993 to 2026. The record is 80.3 mm (3.2 in) in 2006, marked on the chart; the median year is 47.5 mm (1.9 in). 20406080100200020102020Record: 80.3 mm (3.2 in) in 2006
The wettest five days of the year at Norrkoping-Smhi, 1993 to 2026. The record is 80.3 mm (3.2 in) in 2006, marked on the chart; the median year is 47.5 mm (1.9 in).
Wettest five days (Rx5day) at Norrkoping-Smhi by year
YearWettest five days (Rx5day)
199339.4 mm (1.6 in)
199438.3 mm (1.5 in)
199545.6 mm (1.8 in)
199635.6 mm (1.4 in)
199748.2 mm (1.9 in)
199830.0 mm (1.2 in)
199945.1 mm (1.8 in)
200058.0 mm (2.3 in)
200150.2 mm (2.0 in)
200264.4 mm (2.5 in)
200349.3 mm (1.9 in)
200442.2 mm (1.7 in)
200552.0 mm (2.0 in)
200680.3 mm (3.2 in)
200734.9 mm (1.4 in)
200868.1 mm (2.7 in)
200943.0 mm (1.7 in)
201051.6 mm (2.0 in)
201175.4 mm (3.0 in)
201265.0 mm (2.6 in)
201335.8 mm (1.4 in)
201446.7 mm (1.8 in)
201549.4 mm (1.9 in)
201645.0 mm (1.8 in)
201762.1 mm (2.4 in)
201845.2 mm (1.8 in)
201950.5 mm (2.0 in)
202038.2 mm (1.5 in)
202166.2 mm (2.6 in)
202245.6 mm (1.8 in)
202372.3 mm (2.8 in)
202470.0 mm (2.8 in)
202543.9 mm (1.7 in)
202640.7 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Norrkoping-Smhi by year The longest dry spell of the year at Norrkoping-Smhi, 1993 to 2026. The record is 44 days in 1994, marked on the chart; the median year is 24 days. 1020304050200020102020Record: 44 days in 1994
The longest dry spell of the year at Norrkoping-Smhi, 1993 to 2026. The record is 44 days in 1994, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Norrkoping-Smhi by year
YearLongest dry spell (CDD)
199325 days
199444 days
199524 days
199628 days
199722 days
199814 days
199915 days
200024 days
200118 days
200232 days
200333 days
200417 days
200522 days
200620 days
200716 days
200825 days
200924 days
201017 days
201124 days
201229 days
201323 days
201431 days
201542 days
201620 days
201717 days
201829 days
201944 days
202024 days
202122 days
202238 days
202330 days
202423 days
202524 days
202633 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.

Frost Dates and Growing Season

32 years with a frost

Across 32 years with a frost, the median last spring frost at Norrkoping-Smhi falls on 5 May and the median first autumn frost on 13 October, which leaves a median of 160 days between them.

Fitted over all years, the growing season changes by +7.4 days per decade at this station.

Frost dates and growing season at Norrkoping-Smhi
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost5 Mayn/a4 Mayn/a-3.2 days per decade
First autumn frost13 Octobern/a13 Octobern/a+4.3 days per decade
Growing days160 daysn/a160 daysn/a+7.4 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

32 years, 1994 to 2025

A day with at least 29.5 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 54.1 mm (2.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Norrkoping-Smhi: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years29.5 mm (1.2 in)
5 years37.7 mm (1.5 in)
10 years42.4 mm (1.7 in)
25 years47.6 mm (1.9 in)
50 years51.0 mm (2.0 in)Longer than the 32 years of record
100 years54.1 mm (2.1 in)Longer than the 32 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, 32 years of values from 1994 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: 46.3 mm (1.8 in) in 2023; 44.4 mm (1.7 in) in 2024; 43.7 mm (1.7 in) in 2002.

Download the Data

  • Data for Norrkoping-Smhi standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Norrkoping-Smhi 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 (2026-10-14).