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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Arak Weather Records (IRM00040769)

Record envelope, standing records and threshold days for Arak (IRM00040769), Iran, with 53 years of record.

Key Facts for Arak

  • Arak (IRM00040769) is a weather station in Iran at 34.14 latitude and 49.85 longitude, 1,662 m (5,452 ft) above sea level.
  • The station reports from 1973 to 2025, 53 years of record.
  • 1,464 records set at Arak still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Arak set a daily record precipitation of 10.9 mm (0.4 in) on 4 April 2025.

About the Station

  • Location: Iran, 34.14 latitude, 49.85 longitude.
  • Elevation: 1,662 m (5,452 ft).
  • Period of record: 1973 to 2025, 53 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

19 days at or beyond a record
Daily record high and record low at Arak, with 2026 drawn through them The band shows the record high and record low for each calendar day at Arak. The lines show the 2026 daily maximum and minimum. 19 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Arak. The lines show the 2026 daily maximum and minimum. 19 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Arak, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan18.2 C (64.8 F)-32.7 C (-26.9 F)12.2 C (54.0 F)-10.4 C (13.3 F)
Feb23.6 C (74.5 F)-25.2 C (-13.4 F)13.2 C (55.8 F)-10.7 C (12.7 F)
Mar27.8 C (82.0 F)-22.0 C (-7.6 F)22.5 C (72.5 F)-0.5 C (31.1 F)
Apr31.0 C (87.8 F)-11.2 C (11.8 F)30.0 C (86.0 F)0.3 C (32.5 F)
May37.0 C (98.6 F)0.1 C (32.2 F)35.4 C (95.7 F)8.8 C (47.8 F)
Jun40.2 C (104.4 F)9.8 C (49.6 F)37.0 C (98.6 F)11.9 C (53.4 F)
Jul42.7 C (108.9 F)9.7 C (49.5 F)40.4 C (104.7 F)13.8 C (56.8 F)
Aug41.0 C (105.8 F)10.8 C (51.4 F)39.0 C (102.2 F)17.3 C (63.1 F)
Sep38.0 C (100.4 F)5.0 C (41.0 F)n/an/a
Oct31.5 C (88.7 F)-1.2 C (29.8 F)n/an/a
Nov25.0 C (77.0 F)-14.0 C (6.8 F)n/an/a
Dec21.8 C (71.2 F)-19.5 C (-3.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Arak by the year they were set 1,464 records at Arak still stand. 2008 holds the most, with 78. 0204060801973: 291974: 281975: 151976: 171977: 251978: 461979: 291980: 251989: 51990: 111991: 201992: 571993: 31994: 11995: 11996: 11999: 82000: 482001: 402002: 332003: 362004: 502005: 502006: 392007: 492008: 782009: 392010: 602011: 442012: 282013: 462014: 332015: 592016: 602017: 552018: 352019: 372020: 422021: 322022: 332023: 232024: 552025: 39197319781991199620032008201320182023
1,464 records at Arak still stand. 2008 holds the most, with 78.
Standing records at Arak by the year they were set
Year setStanding records
197329
197428
197515
197617
197725
197846
197929
198025
19895
199011
199120
199257
19933
19941
19951
19961
19998
200048
200140
200233
200336
200450
200550
200639
200749
200878
200939
201060
201144
201228
201346
201433
201559
201660
201755
201835
201937
202042
202132
202233
202323
202455
202539

Wettest Day of Each Month

Jun: 117.1 mm (4.6 in)
Record daily precipitation for each month at Arak The wettest day on record for each calendar month at Arak. The most was 117.1 mm (4.6 in) on 10 June 2012. 050100150 Jan: 78.0 mm (3.1 in), 5 January 1996 Jan Feb: 102.1 mm (4.0 in), 25 February 1991 Feb Mar: 46.2 mm (1.8 in), 13 March 2005 Mar Apr: 106.9 mm (4.2 in), 25 April 2007 Apr May: 50.0 mm (2.0 in), 21 May 1990 May Jun: 117.1 mm (4.6 in), 10 June 2012 Jun Jul: 59.9 mm (2.4 in), 14 July 2010 Jul Aug: 10.9 mm (0.4 in), 2 August 1998 Aug Sep: 50.0 mm (2.0 in), 10 September 2007 Sep Oct: 70.6 mm (2.8 in), 11 October 1998 Oct Nov: 53.1 mm (2.1 in), 8 November 1999 Nov Dec: 25.1 mm (1.0 in), 2 December 2016 Dec
The wettest day on record for each calendar month at Arak. The most was 117.1 mm (4.6 in) on 10 June 2012.
Record daily precipitation for each month at Arak
MonthRecord daily precipitation (mm)Date
Jan78.0 mm (3.1 in)5 January 1996
Feb102.1 mm (4.0 in)25 February 1991
Mar46.2 mm (1.8 in)13 March 2005
Apr106.9 mm (4.2 in)25 April 2007
May50.0 mm (2.0 in)21 May 1990
Jun117.1 mm (4.6 in)10 June 2012
Jul59.9 mm (2.4 in)14 July 2010
Aug10.9 mm (0.4 in)2 August 1998
Sep50.0 mm (2.0 in)10 September 2007
Oct70.6 mm (2.8 in)11 October 1998
Nov53.1 mm (2.1 in)8 November 1999
Dec25.1 mm (1.0 in)2 December 2016

Period of Record Coverage

1973 to 2025
Days with data per year at Arak 44 years of record at Arak, 1973 to 2025. 27 years have data for under 90 percent of days and are left out of rankings: 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 and others. 1973: 154 of 365 days1974: 132 of 365 days1975: 81 of 365 days1976: 129 of 366 days1977: 130 of 365 days1978: 220 of 365 days1979: 156 of 365 days1980: 163 of 366 days1989: 43 of 365 days1990: 60 of 365 days1991: 140 of 365 days1992: 104 of 366 days1993: 7 of 365 days1994: 6 of 365 days1995: 1 of 365 days1996: 3 of 366 days1997: 5 of 365 days1999: 71 of 365 days2000: 271 of 366 days2001: 281 of 365 days2002: 336 of 365 days2003: 275 of 365 days2004: 274 of 366 days2005: 322 of 365 days2006: 329 of 365 days2007: 348 of 365 days2008: 341 of 366 days2009: 329 of 365 days2010: 324 of 365 days2011: 353 of 365 days2012: 356 of 366 days2013: 356 of 365 days2014: 353 of 365 days2015: 359 of 365 days2016: 360 of 366 days2017: 359 of 365 days2018: 339 of 365 days2019: 348 of 365 days2020: 351 of 366 days2021: 320 of 365 days2022: 342 of 365 days2023: 330 of 365 days2024: 300 of 366 days2025: 171 of 365 days19801990200020102020
44 years of record at Arak, 1973 to 2025. 27 years have data for under 90 percent of days and are left out of rankings: 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 and others.
Days with data per year at Arak
YearDays with dataShare of yearComplete
197315442%No
197413236%No
19758122%No
197612935%No
197713036%No
197822060%No
197915643%No
198016345%No
19894312%No
19906016%No
199114038%No
199210428%No
199372%No
199462%No
199510%No
199631%No
199751%No
19997119%No
200027174%No
200128177%No
200233692%Yes
200327575%No
200427475%No
200532288%No
200632990%Yes
200734895%Yes
200834193%Yes
200932990%Yes
201032489%No
201135397%Yes
201235697%Yes
201335698%Yes
201435397%Yes
201535998%Yes
201636098%Yes
201735998%Yes
201833993%Yes
201934895%Yes
202035196%Yes
202132088%No
202234294%Yes
202333090%Yes
202430082%No
202517147%No

Latest Records

16
Latest records at Arak
DateStationRecordValueBeat old record byOld record stoodSignificance
4 April 2025Arak, IRdaily rain10.9 mm (0.4 in)0.7 mm (0.03 in)20 years9 of 100 (Routine)
7 February 2025Arak, IRdaily rain12.2 mm (0.5 in)6.6 mm (0.26 in)15 years12 of 100 (Routine)
6 February 2025Arak, IRdaily rain4.6 mm (0.18 in)2.8 mm (0.11 in)21 years11 of 100 (Routine)
27 January 2025Arak, IRdaily rain11.2 mm (0.4 in)0.8 mm (0.03 in)21 years10 of 100 (Routine)
1 January 2025Arak, IRdaily rain2.8 mm (0.11 in)1.0 mm (0.04 in)11 years7 of 100 (Routine)
14 December 2024Arak, IRdaily rain16.5 mm (0.6 in)6.6 mm (0.26 in)11 years17 of 100 (Routine)
15 June 2024Arak, IRdaily rain1.3 mm (0.05 in)1.3 mm (0.05 in)34 years13 of 100 (Routine)
23 May 2024Arak, IRdaily rain29.0 mm (1.1 in)25.7 mm (1.0 in)6 years39 of 100 (Notable)
3 May 2024Arak, IRdaily rain3.3 mm (0.13 in)0.3 mm (0.01 in)7 years5 of 100 (Routine)
22 April 2024Arak, IRdaily rain3.3 mm (0.13 in)2.0 mm (0.08 in)5 years5 of 100 (Routine)
10 April 2024Arak, IRdaily rain25.4 mm (1.0 in)12.2 mm (0.5 in)4 years14 of 100 (Routine)
19 March 2024Arak, IRdaily rain6.1 mm (0.24 in)1.3 mm (0.05 in)22 years10 of 100 (Routine)
11 March 2024Arak, IRdaily rain7.6 mm (0.30 in)3.5 mm (0.14 in)19 years12 of 100 (Routine)
5 March 2024Arak, IRdaily rain16.5 mm (0.6 in)11.7 mm (0.5 in)11 years19 of 100 (Routine)
29 February 2024Arak, IRdaily rain2.8 mm (0.11 in)1.8 mm (0.07 in)28 years12 of 100 (Routine)
16 February 2024Arak, IRdaily rain29.0 mm (1.1 in)25.7 mm (1.0 in)12 years27 of 100 (Routine)

Extremes by Year

1973 to 2025
Yearly extremes at Arak: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.7 C (108.9 F)202439.8 C (103.6 F)44
Coldest night (TNn)-32.7 C (-26.9 F)2008-14.1 C (6.6 F)44
Wettest day (Rx1day)117.1 mm (4.6 in)201235.6 mm (1.4 in)37
Wettest five days (Rx5day)124.0 mm (4.9 in)199139.7 mm (1.6 in)36
Longest dry spell (CDD)187 days201740 days37

Hottest day (TXx)

Hottest day (TXx) at Arak by year The hottest day of the year at Arak, 1973 to 2025. The record is 42.7 C (108.9 F) in 2024, marked on the chart; the median year is 39.8 C (103.6 F). 102030405019801990200020102020Record: 42.7 C (108.9 F) in 2024
The hottest day of the year at Arak, 1973 to 2025. The record is 42.7 C (108.9 F) in 2024, marked on the chart; the median year is 39.8 C (103.6 F).
Hottest day (TXx) at Arak by year
YearHottest day (TXx)
197341.0 C (105.8 F)
197437.0 C (98.6 F)
197541.0 C (105.8 F)
197640.0 C (104.0 F)
197742.0 C (107.6 F)
197841.0 C (105.8 F)
197940.0 C (104.0 F)
198039.0 C (102.2 F)
198939.5 C (103.1 F)
199037.0 C (98.6 F)
199138.0 C (100.4 F)
199238.0 C (100.4 F)
199337.0 C (98.6 F)
199420.0 C (68.0 F)
199511.0 C (51.8 F)
199629.5 C (85.1 F)
199733.0 C (91.4 F)
1998n/a
199930.0 C (86.0 F)
200038.4 C (101.1 F)
200138.6 C (101.5 F)
200239.6 C (103.3 F)
200340.0 C (104.0 F)
200438.8 C (101.8 F)
200539.6 C (103.3 F)
200640.6 C (105.1 F)
200739.0 C (102.2 F)
200840.6 C (105.1 F)
200940.6 C (105.1 F)
201040.4 C (104.7 F)
201139.8 C (103.6 F)
201240.2 C (104.4 F)
201341.6 C (106.9 F)
201440.4 C (104.7 F)
201540.2 C (104.4 F)
201639.8 C (103.6 F)
201738.8 C (101.8 F)
201839.8 C (103.6 F)
201940.2 C (104.4 F)
202039.6 C (103.3 F)
202139.8 C (103.6 F)
202240.8 C (105.4 F)
202339.9 C (103.8 F)
202442.7 C (108.9 F)
202540.4 C (104.7 F)

Coldest night (TNn)

Coldest night (TNn) at Arak by year The coldest night of the year at Arak, 1973 to 2025. The record is -32.7 C (-26.9 F) in 2008, marked on the chart; the median year is -14.1 C (6.6 F). -40-30-20-1001019801990200020102020Record: -32.7 C (-26.9 F) in 2008
The coldest night of the year at Arak, 1973 to 2025. The record is -32.7 C (-26.9 F) in 2008, marked on the chart; the median year is -14.1 C (6.6 F).
Coldest night (TNn) at Arak by year
YearColdest night (TNn)
1973-17.0 C (1.4 F)
1974-25.0 C (-13.0 F)
1975-12.0 C (10.4 F)
1976-6.0 C (21.2 F)
1977-18.0 C (-0.4 F)
1978-8.0 C (17.6 F)
1979-10.0 C (14.0 F)
1980-20.0 C (-4.0 F)
1989-20.0 C (-4.0 F)
1990-19.5 C (-3.1 F)
1991-17.5 C (0.5 F)
1992-25.5 C (-13.9 F)
1993-17.5 C (0.5 F)
19940.0 C (32.0 F)
1995-6.5 C (20.3 F)
1996-7.0 C (19.4 F)
19976.4 C (43.5 F)
1998n/a
1999-7.8 C (18.0 F)
2000-22.6 C (-8.7 F)
2001-17.8 C (0.0 F)
2002-17.8 C (0.0 F)
2003-14.6 C (5.7 F)
2004-11.6 C (11.1 F)
2005-23.6 C (-10.5 F)
2006-20.4 C (-4.7 F)
2007-15.4 C (4.3 F)
2008-32.7 C (-26.9 F)
2009-16.0 C (3.2 F)
2010-12.4 C (9.7 F)
2011-17.0 C (1.4 F)
2012-12.0 C (10.4 F)
2013-11.6 C (11.1 F)
2014-22.0 C (-7.6 F)
2015-8.8 C (16.2 F)
2016-14.0 C (6.8 F)
2017-14.2 C (6.4 F)
2018-11.6 C (11.1 F)
2019-8.0 C (17.6 F)
2020-7.6 C (18.3 F)
2021-8.8 C (16.2 F)
2022-11.4 C (11.5 F)
2023-15.8 C (3.6 F)
2024-9.5 C (14.9 F)
2025-10.7 C (12.7 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Arak by year The wettest day of the year at Arak, 1973 to 2025. The record is 117.1 mm (4.6 in) in 2012, marked on the chart; the median year is 35.6 mm (1.4 in). 05010015019801990200020102020Record: 117.1 mm (4.6 in) in 2012
The wettest day of the year at Arak, 1973 to 2025. The record is 117.1 mm (4.6 in) in 2012, marked on the chart; the median year is 35.6 mm (1.4 in).
Wettest day (Rx1day) at Arak by year
YearWettest day (Rx1day)
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
198915.0 mm (0.6 in)
199050.0 mm (2.0 in)
1991102.1 mm (4.0 in)
199250.0 mm (2.0 in)
199329.0 mm (1.1 in)
199450.0 mm (2.0 in)
199537.1 mm (1.5 in)
199678.0 mm (3.1 in)
199722.6 mm (0.9 in)
199870.6 mm (2.8 in)
199953.1 mm (2.1 in)
200038.1 mm (1.5 in)
200120.1 mm (0.8 in)
200219.3 mm (0.8 in)
200325.4 mm (1.0 in)
200431.2 mm (1.2 in)
200546.2 mm (1.8 in)
200634.5 mm (1.4 in)
2007106.9 mm (4.2 in)
200816.5 mm (0.6 in)
200935.6 mm (1.4 in)
201059.9 mm (2.4 in)
201138.9 mm (1.5 in)
2012117.1 mm (4.6 in)
201324.9 mm (1.0 in)
201432.8 mm (1.3 in)
201523.9 mm (0.9 in)
201646.5 mm (1.8 in)
201738.9 mm (1.5 in)
201835.3 mm (1.4 in)
201955.9 mm (2.2 in)
202064.0 mm (2.5 in)
202121.6 mm (0.9 in)
202234.0 mm (1.3 in)
202319.8 mm (0.8 in)
202429.0 mm (1.1 in)
202518.5 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Arak by year The wettest five days of the year at Arak, 1973 to 2025. The record is 124.0 mm (4.9 in) in 1991, marked on the chart; the median year is 39.7 mm (1.6 in). 05010015019801990200020102020Record: 124.0 mm (4.9 in) in 1991
The wettest five days of the year at Arak, 1973 to 2025. The record is 124.0 mm (4.9 in) in 1991, marked on the chart; the median year is 39.7 mm (1.6 in).
Wettest five days (Rx5day) at Arak by year
YearWettest five days (Rx5day)
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1989n/a
19905.0 mm (0.20 in)
1991124.0 mm (4.9 in)
199247.3 mm (1.9 in)
19930.0 mm (0.00 in)
199435.3 mm (1.4 in)
19959.1 mm (0.36 in)
199698.0 mm (3.9 in)
199734.1 mm (1.3 in)
19982.3 mm (0.09 in)
199961.7 mm (2.4 in)
200018.3 mm (0.7 in)
200116.5 mm (0.6 in)
200232.0 mm (1.3 in)
200345.7 mm (1.8 in)
200459.2 mm (2.3 in)
200572.7 mm (2.9 in)
200639.7 mm (1.6 in)
2007114.6 mm (4.5 in)
200831.5 mm (1.2 in)
200943.7 mm (1.7 in)
201024.6 mm (1.0 in)
201152.9 mm (2.1 in)
2012117.1 mm (4.6 in)
201335.6 mm (1.4 in)
201457.9 mm (2.3 in)
201528.2 mm (1.1 in)
201683.9 mm (3.3 in)
201767.6 mm (2.7 in)
201849.0 mm (1.9 in)
201993.5 mm (3.7 in)
202090.0 mm (3.5 in)
202128.0 mm (1.1 in)
202236.3 mm (1.4 in)
202339.1 mm (1.5 in)
202439.6 mm (1.6 in)
202535.6 mm (1.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Arak by year The longest dry spell of the year at Arak, 1973 to 2025. The record is 187 days in 2017, marked on the chart; the median year is 40 days. 05010015020019801990200020102020Record: 187 days in 2017
The longest dry spell of the year at Arak, 1973 to 2025. The record is 187 days in 2017, marked on the chart; the median year is 40 days.
Longest dry spell (CDD) at Arak by year
YearLongest dry spell (CDD)
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
19894 days
199010 days
199117 days
19927 days
19936 days
19945 days
199516 days
199629 days
199718 days
199810 days
19998 days
200041 days
200120 days
200269 days
200340 days
200438 days
200555 days
2006131 days
200728 days
200856 days
200918 days
201040 days
201166 days
201289 days
201348 days
201420 days
201535 days
2016141 days
2017187 days
2018102 days
2019119 days
2020102 days
202190 days
202291 days
202377 days
202483 days
202555 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.

Download the Data

  • Data for Arak standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Arak 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 (2025-12-31).