Iran Shahr Weather Records (IRM00040879)

Record envelope, standing records and threshold days for Iran Shahr (IRM00040879), Iran, with 53 years of record.

Key Facts for Iran Shahr

Iran Shahr (IRM00040879) is a weather station in Iran at 27.24 latitude and 60.72 longitude, 621 m (2,037 ft) above sea level.
The station reports from 1973 to 2025, 53 years of record.
1,464 records set at Iran Shahr still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Iran, 27.24 latitude, 60.72 longitude.
Elevation: 621 m (2,037 ft).
Period of record: 1973 to 2025, 53 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

32 days at or beyond a record

The band shows the record high and record low for each calendar day at Iran Shahr. The lines show the 2026 daily maximum and minimum. 32 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Iran Shahr, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.0 C (87.8 F)	-1.1 C (30.0 F)	27.2 C (81.0 F)	2.0 C (35.6 F)
Feb	34.0 C (93.2 F)	0.9 C (33.6 F)	29.2 C (84.6 F)	5.4 C (41.7 F)
Mar	39.7 C (103.5 F)	4.9 C (40.8 F)	35.1 C (95.2 F)	7.2 C (45.0 F)
Apr	43.2 C (109.8 F)	10.8 C (51.4 F)	41.8 C (107.2 F)	17.7 C (63.9 F)
May	47.7 C (117.9 F)	15.5 C (59.9 F)	47.5 C (117.5 F)	23.8 C (74.8 F)
Jun	49.3 C (120.7 F)	21.0 C (69.8 F)	45.8 C (114.4 F)	24.9 C (76.8 F)
Jul	48.5 C (119.3 F)	22.9 C (73.2 F)	47.3 C (117.1 F)	22.9 C (73.2 F)
Aug	47.8 C (118.0 F)	21.9 C (71.4 F)	46.0 C (114.8 F)	29.8 C (85.6 F)
Sep	46.8 C (116.2 F)	17.2 C (63.0 F)	n/a	n/a
Oct	42.0 C (107.6 F)	9.0 C (48.2 F)	n/a	n/a
Nov	37.4 C (99.3 F)	2.5 C (36.5 F)	n/a	n/a
Dec	33.2 C (91.8 F)	-2.0 C (28.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Iran Shahr still stand. 2024 holds the most, with 104.

Standing records at Iran Shahr by the year they were set
Year set	Standing records
1973	5
1974	3
1975	10
1976	2
1977	5
1978	11
1979	2
1980	7
1989	4
1990	17
1991	23
1992	28
1993	1
1994	2
1995	1
1997	1
1998	1
1999	5
2000	31
2001	32
2002	35
2003	6
2004	26
2005	49
2006	61
2007	64
2008	47
2009	43
2010	57
2011	47
2012	37
2013	46
2014	47
2015	68
2016	60
2017	52
2018	47
2019	62
2020	75
2021	69
2022	59
2023	59
2024	104
2025	53

Wettest Day of Each Month

Aug: 164.1 mm (6.5 in)

The wettest day on record for each calendar month at Iran Shahr. The most was 164.1 mm (6.5 in) on 23 August 2011.

Record daily precipitation for each month at Iran Shahr
Month	Record daily precipitation (mm)	Date
Jan	50.8 mm (2.0 in)	16 January 2008
Feb	27.2 mm (1.1 in)	12 February 2011
Mar	50.0 mm (2.0 in)	29 March 1995
Apr	39.9 mm (1.6 in)	17 April 2024
May	50.0 mm (2.0 in)	5 May 1994
Jun	80.0 mm (3.1 in)	14 June 2010
Jul	32.0 mm (1.3 in)	14 July 2017
Aug	164.1 mm (6.5 in)	23 August 2011
Sep	50.0 mm (2.0 in)	2 September 2005
Oct	98.0 mm (3.9 in)	20 October 1990
Nov	12.7 mm (0.5 in)	28 November 2008
Dec	22.6 mm (0.9 in)	10 December 2009

Period of Record Coverage

1973 to 2025

45 years of record at Iran Shahr, 1973 to 2025. 45 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 Iran Shahr
Year	Days with data	Share of year	Complete
1973	33	9%	No
1974	20	5%	No
1975	31	8%	No
1976	31	8%	No
1977	28	8%	No
1978	48	13%	No
1979	10	3%	No
1980	19	5%	No
1989	24	7%	No
1990	58	16%	No
1991	139	38%	No
1992	113	31%	No
1993	8	2%	No
1994	5	1%	No
1995	8	2%	No
1996	3	1%	No
1997	6	2%	No
1998	1	0%	No
1999	68	19%	No
2000	177	48%	No
2001	237	65%	No
2002	274	75%	No
2003	39	11%	No
2004	164	45%	No
2005	293	80%	No
2006	316	87%	No
2007	316	87%	No
2008	292	80%	No
2009	257	70%	No
2010	266	73%	No
2011	317	87%	No
2012	328	90%	No
2013	316	87%	No
2014	298	82%	No
2015	316	87%	No
2016	317	87%	No
2017	313	86%	No
2018	311	85%	No
2019	299	82%	No
2020	307	84%	No
2021	301	82%	No
2022	321	88%	No
2023	312	85%	No
2024	301	82%	No
2025	191	52%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1973 to 2025

Yearly extremes at Iran Shahr: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	49.3 C (120.7 F)	2005	47.3 C (117.1 F)	45
Coldest night (TNn)	-2.0 C (28.4 F)	2000	2.2 C (36.0 F)	45
Wettest day (Rx1day)	164.1 mm (6.5 in)	2011	20.3 mm (0.8 in)	37
Wettest five days (Rx5day)	164.1 mm (6.5 in)	2011	21.8 mm (0.9 in)	34
Longest dry spell (CDD)	144 days	2022	44 days	37

Hottest day (TXx)

The hottest day of the year at Iran Shahr, 1973 to 2025. The record is 49.3 C (120.7 F) in 2005, marked on the chart; the median year is 47.3 C (117.1 F).

Hottest day (TXx) at Iran Shahr by year
Year	Hottest day (TXx)
1973	47.0 C (116.6 F)
1974	46.0 C (114.8 F)
1975	48.0 C (118.4 F)
1976	46.0 C (114.8 F)
1977	45.0 C (113.0 F)
1978	46.0 C (114.8 F)
1979	35.0 C (95.0 F)
1980	47.0 C (116.6 F)
1989	45.6 C (114.1 F)
1990	47.0 C (116.6 F)
1991	47.4 C (117.3 F)
1992	46.6 C (115.9 F)
1993	45.0 C (113.0 F)
1994	40.6 C (105.1 F)
1995	43.4 C (110.1 F)
1996	38.4 C (101.1 F)
1997	44.2 C (111.6 F)
1998	30.2 C (86.4 F)
1999	44.2 C (111.6 F)
2000	46.5 C (115.7 F)
2001	48.4 C (119.1 F)
2002	47.8 C (118.0 F)
2003	42.6 C (108.7 F)
2004	47.0 C (116.6 F)
2005	49.3 C (120.7 F)
2006	48.4 C (119.1 F)
2007	47.8 C (118.0 F)
2008	47.6 C (117.7 F)
2009	47.7 C (117.9 F)
2010	48.2 C (118.8 F)
2011	48.6 C (119.5 F)
2012	47.6 C (117.7 F)
2013	48.2 C (118.8 F)
2014	47.2 C (117.0 F)
2015	47.6 C (117.7 F)
2016	47.5 C (117.5 F)
2017	48.9 C (120.0 F)
2018	49.1 C (120.4 F)
2019	47.9 C (118.2 F)
2020	48.1 C (118.6 F)
2021	49.1 C (120.4 F)
2022	47.3 C (117.1 F)
2023	47.3 C (117.1 F)
2024	48.5 C (119.3 F)
2025	47.5 C (117.5 F)

Coldest night (TNn)

The coldest night of the year at Iran Shahr, 1973 to 2025. The record is -2.0 C (28.4 F) in 2000, marked on the chart; the median year is 2.2 C (36.0 F).

Coldest night (TNn) at Iran Shahr by year
Year	Coldest night (TNn)
1973	0.0 C (32.0 F)
1974	16.0 C (60.8 F)
1975	7.0 C (44.6 F)
1976	3.0 C (37.4 F)
1977	1.0 C (33.8 F)
1978	4.0 C (39.2 F)
1979	4.0 C (39.2 F)
1980	7.0 C (44.6 F)
1989	2.0 C (35.6 F)
1990	0.0 C (32.0 F)
1991	3.0 C (37.4 F)
1992	0.2 C (32.4 F)
1993	12.0 C (53.6 F)
1994	6.0 C (42.8 F)
1995	5.0 C (41.0 F)
1996	30.4 C (86.7 F)
1997	26.0 C (78.8 F)
1998	33.0 C (91.4 F)
1999	3.8 C (38.8 F)
2000	-2.0 C (28.4 F)
2001	1.6 C (34.9 F)
2002	1.0 C (33.8 F)
2003	2.5 C (36.5 F)
2004	5.0 C (41.0 F)
2005	1.2 C (34.2 F)
2006	-1.0 C (30.2 F)
2007	0.4 C (32.7 F)
2008	0.4 C (32.7 F)
2009	3.8 C (38.8 F)
2010	1.2 C (34.2 F)
2011	0.3 C (32.5 F)
2012	-0.8 C (30.6 F)
2013	0.8 C (33.4 F)
2014	1.9 C (35.4 F)
2015	2.2 C (36.0 F)
2016	5.5 C (41.9 F)
2017	0.4 C (32.7 F)
2018	3.9 C (39.0 F)
2019	3.6 C (38.5 F)
2020	2.5 C (36.5 F)
2021	-1.1 C (30.0 F)
2022	3.6 C (38.5 F)
2023	0.3 C (32.5 F)
2024	0.8 C (33.4 F)
2025	2.0 C (35.6 F)

Wettest day (Rx1day)

The wettest day of the year at Iran Shahr, 1973 to 2025. The record is 164.1 mm (6.5 in) in 2011, marked on the chart; the median year is 20.3 mm (0.8 in).

Wettest day (Rx1day) at Iran Shahr by year
Year	Wettest day (Rx1day)
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1989	6.1 mm (0.24 in)
1990	98.0 mm (3.9 in)
1991	7.9 mm (0.31 in)
1992	13.0 mm (0.5 in)
1993	21.1 mm (0.8 in)
1994	50.0 mm (2.0 in)
1995	50.0 mm (2.0 in)
1996	1.0 mm (0.04 in)
1997	11.9 mm (0.5 in)
1998	0.0 mm (0.00 in)
1999	0.0 mm (0.00 in)
2000	0.8 mm (0.03 in)
2001	4.1 mm (0.16 in)
2002	8.9 mm (0.35 in)
2003	20.3 mm (0.8 in)
2004	40.9 mm (1.6 in)
2005	59.9 mm (2.4 in)
2006	21.6 mm (0.9 in)
2007	71.4 mm (2.8 in)
2008	50.8 mm (2.0 in)
2009	22.6 mm (0.9 in)
2010	80.0 mm (3.1 in)
2011	164.1 mm (6.5 in)
2012	13.2 mm (0.5 in)
2013	9.9 mm (0.39 in)
2014	13.7 mm (0.5 in)
2015	7.1 mm (0.28 in)
2016	4.8 mm (0.19 in)
2017	34.0 mm (1.3 in)
2018	20.3 mm (0.8 in)
2019	25.9 mm (1.0 in)
2020	47.0 mm (1.9 in)
2021	17.8 mm (0.7 in)
2022	26.4 mm (1.0 in)
2023	19.1 mm (0.8 in)
2024	39.9 mm (1.6 in)
2025	21.8 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Iran Shahr, 1973 to 2025. The record is 164.1 mm (6.5 in) in 2011, marked on the chart; the median year is 21.8 mm (0.9 in).

Wettest five days (Rx5day) at Iran Shahr by year
Year	Wettest five days (Rx5day)
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1989	n/a
1990	50.0 mm (2.0 in)
1991	2.0 mm (0.08 in)
1992	4.4 mm (0.17 in)
1993	0.0 mm (0.00 in)
1994	50.0 mm (2.0 in)
1995	n/a
1996	0.0 mm (0.00 in)
1997	0.0 mm (0.00 in)
1998	n/a
1999	0.0 mm (0.00 in)
2000	0.8 mm (0.03 in)
2001	0.8 mm (0.03 in)
2002	8.9 mm (0.35 in)
2003	21.8 mm (0.9 in)
2004	20.1 mm (0.8 in)
2005	59.9 mm (2.4 in)
2006	5.6 mm (0.22 in)
2007	79.8 mm (3.1 in)
2008	130.6 mm (5.1 in)
2009	23.1 mm (0.9 in)
2010	100.0 mm (3.9 in)
2011	164.1 mm (6.5 in)
2012	20.9 mm (0.8 in)
2013	18.3 mm (0.7 in)
2014	25.4 mm (1.0 in)
2015	7.1 mm (0.28 in)
2016	4.8 mm (0.19 in)
2017	67.3 mm (2.6 in)
2018	22.6 mm (0.9 in)
2019	41.4 mm (1.6 in)
2020	63.0 mm (2.5 in)
2021	22.1 mm (0.9 in)
2022	27.4 mm (1.1 in)
2023	20.1 mm (0.8 in)
2024	100.1 mm (3.9 in)
2025	21.8 mm (0.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Iran Shahr, 1973 to 2025. The record is 144 days in 2022, marked on the chart; the median year is 44 days.

Longest dry spell (CDD) at Iran Shahr by year
Year	Longest dry spell (CDD)
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1989	3 days
1990	7 days
1991	10 days
1992	9 days
1993	7 days
1994	6 days
1995	4 days
1996	10 days
1997	6 days
1998	2 days
1999	5 days
2000	17 days
2001	18 days
2002	21 days
2003	25 days
2004	26 days
2005	67 days
2006	74 days
2007	24 days
2008	77 days
2009	41 days
2010	102 days
2011	54 days
2012	85 days
2013	52 days
2014	44 days
2015	59 days
2016	102 days
2017	104 days
2018	111 days
2019	84 days
2020	135 days
2021	74 days
2022	144 days
2023	65 days
2024	89 days
2025	48 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 Iran Shahr standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Iran Shahr 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).