Jahrom climate — normals and trends

Jahrom (Iran) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 21.7 °C and it receives 226 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is July (33.0 °C on average) and the coldest is January (9.1 °C). Rainfall peaks in January.

Jahrom averages 7 frost days, 170 hot days (≥ 30 °C) and 25 rainy days per year.

Jahrom has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.

The hottest day of the period reached 44.4 °C (on 6 June 2021) and the coldest -12.6 °C (on 21 January 1990).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

JahromFars

coords
28.50°, 53.56°
period
19402025 · 86 yrs
BShHot semi-aridWarmest monthJulyColdest monthJanuaryWettest monthJanuaryDriest monthJune

Mean daily temperature

21.7°C

Average daily high

27.7°C

Average daily low

14.5°C

Annual rainfall

226mm

Sunshine / day

11.2h

Mean relative humidity

35%

Average peak wind

11.3km/h

Seasonal range

23.9°C

Frost days (< 0 °C)

7 d/yr

Hot days (≥ 30 °C)

170 d/yr

Rainy days (≥ 1 mm)

25 d/yr

Annual snowfall

0.6 cm

Average feels-like high

26.3 °C

Average feels-like low

12.1 °C

Average peak gust

32.7 km/h

Tropical nights (≥ 20 °C)

124 d/yr

Solar radiation

21.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °C

since 1940

+0.2 °C per decade · r² = 0.41 · p = < 0.001

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

44.4 °C

6 June 2021

Coldest day

-12.6 °C

21 January 1990

Wettest day

78 mm

11 February 1980

Windiest day

27.2 km/h

2 April 1968

Strongest gust

81.0 km/h

24 January 1974

Hottest feels-like

45.6 °C

5 July 2019

Coldest feels-like

-17.0 °C

21 January 1990

Snowiest day

9.9 cm

18 January 1975

Sunniest day

13.0 h

1 May 1940

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202543.3 °C20 July 2025-3.2 °C4 January 202523.5 °C227 mm2039
202444.1 °C17 July 2024-0.3 °C20 December 202423.3 °C215 mm1731
202344.3 °C13 July 20231.2 °C13 January 202323.6 °C166 mm1820
202243.5 °C30 June 2022-2.0 °C22 January 202223.5 °C197 mm2062
202144.4 °C6 June 2021-3.6 °C8 January 202124.0 °C54 mm2026
202043.1 °C5 June 2020-1.9 °C13 February 202022.3 °C283 mm1695
201943.8 °C7 August 2019-0.9 °C7 February 201922.5 °C406 mm1723
201844.1 °C7 June 2018-1.7 °C11 January 201823.4 °C88 mm1776
201744.3 °C11 July 2017-2.3 °C3 February 201722.8 °C465 mm1985
201643.2 °C22 July 2016-1.0 °C30 January 201623.0 °C110 mm1781
201542.2 °C6 July 2015-1.5 °C23 February 201522.9 °C271 mm1834
201442.2 °C16 July 20140.1 °C7 February 201422.3 °C215 mm1810
201343.4 °C16 July 2013-3.3 °C25 December 201322.4 °C189 mm16514
201242.7 °C4 July 2012-3.4 °C22 January 201222.4 °C176 mm1735
201142.4 °C18 June 2011-1.1 °C13 January 201122.7 °C266 mm1751
201043.8 °C7 July 2010-2.7 °C29 December 201023.3 °C51 mm1835
200942.6 °C1 July 2009-3.2 °C16 January 200922.5 °C246 mm1759
200842.8 °C12 July 2008-3.6 °C6 February 200822.7 °C126 mm18317
200743.2 °C14 June 2007-1.8 °C5 January 200722.2 °C155 mm18511
200643.0 °C10 July 2006-3.3 °C2 January 200622.2 °C246 mm18613
200542.4 °C25 June 2005-2.7 °C11 February 200521.9 °C181 mm1758
200442.2 °C7 August 2004-2.2 °C30 December 200422.3 °C332 mm1793
200342.9 °C14 July 20030.2 °C20 January 200322.2 °C290 mm1820
200242.8 °C4 July 2002-0.2 °C26 January 200222.4 °C195 mm1791
200141.9 °C4 July 2001-1.7 °C29 January 200122.9 °C81 mm1874
200042.8 °C30 June 20000.7 °C25 January 200022.5 °C214 mm1850
199941.2 °C18 July 1999-1.1 °C5 January 199922.7 °C245 mm1861
199844.0 °C12 July 1998-2.8 °C14 January 199822.6 °C262 mm1777
199742.8 °C30 July 19970.4 °C8 February 199721.2 °C302 mm1570
199640.8 °C30 July 1996-2.4 °C16 January 199621.3 °C355 mm1592
199541.5 °C31 July 19950.5 °C2 January 199521.4 °C345 mm1610
199441.3 °C9 August 1994-1.7 °C9 December 199421.6 °C179 mm1608
199341.7 °C16 July 1993-2.6 °C24 January 199321.5 °C274 mm1588
199240.4 °C30 July 1992-5.0 °C29 January 199219.8 °C367 mm15022
199142.3 °C10 August 1991-1.5 °C11 February 199121.4 °C343 mm1656
199042.5 °C13 August 1990-12.6 °C21 January 199021.7 °C154 mm17917
198942.7 °C13 July 1989-6.1 °C19 December 198921.4 °C123 mm16925
198843.5 °C14 July 1988-1.7 °C20 January 198822.1 °C273 mm1779
198742.3 °C11 July 19870.3 °C3 December 198722.3 °C91 mm1770
198641.0 °C24 June 1986-2.3 °C22 January 198621.1 °C255 mm1666
198541.1 °C14 July 1985-0.2 °C30 December 198521.8 °C141 mm1601
198440.8 °C11 June 1984-1.4 °C1 February 198421.4 °C172 mm1536
198341.9 °C11 July 1983-3.2 °C30 January 198321.0 °C137 mm15916
198241.3 °C9 June 1982-3.4 °C18 January 198220.3 °C338 mm16615
198142.0 °C14 July 1981-0.2 °C9 January 198121.6 °C178 mm1621
198041.2 °C7 June 1980-2.1 °C2 February 198021.5 °C339 mm1738
197941.7 °C23 July 1979-1.2 °C29 January 197921.4 °C339 mm1742
197841.6 °C8 June 1978-0.2 °C18 January 197821.8 °C152 mm1651
197744.2 °C15 July 1977-3.2 °C14 January 197722.1 °C234 mm1729
197642.2 °C31 July 1976-2.4 °C4 January 197620.8 °C413 mm1575
197541.8 °C13 July 1975-9.0 °C21 January 197521.0 °C142 mm15810
197441.2 °C3 July 1974-2.6 °C26 January 197420.9 °C345 mm1557
197342.1 °C20 June 1973-8.3 °C7 January 197321.7 °C90 mm18117
197241.6 °C10 July 1972-6.2 °C27 December 197220.0 °C429 mm15324
197141.9 °C11 July 1971-2.8 °C3 February 197121.3 °C118 mm1599
197041.5 °C10 August 1970-2.7 °C30 January 197022.0 °C113 mm1768
196942.5 °C25 July 1969-1.7 °C1 February 196921.4 °C211 mm1633
196841.9 °C8 July 1968-2.6 °C5 February 196820.8 °C224 mm15910
196743.3 °C14 July 1967-2.9 °C25 December 196721.0 °C85 mm1639
196642.2 °C26 July 1966-0.1 °C27 November 196622.1 °C71 mm1601
196542.2 °C15 July 1965-2.1 °C7 January 196521.4 °C223 mm1644
196443.7 °C5 July 1964-5.7 °C20 January 196421.0 °C319 mm16224
196342.1 °C18 July 1963-3.1 °C28 December 196321.8 °C151 mm1533
196241.2 °C17 July 1962-0.2 °C26 January 196221.7 °C74 mm1441
196141.4 °C9 July 1961-0.5 °C7 January 196121.2 °C178 mm1632
196042.9 °C25 June 1960-0.1 °C30 January 196021.7 °C165 mm1551
195942.5 °C9 August 1959-2.6 °C16 December 195921.4 °C222 mm18018
195841.1 °C2 July 1958-1.0 °C5 February 195821.9 °C152 mm1852
195742.0 °C20 July 1957-3.8 °C26 January 195719.9 °C435 mm14516
195640.4 °C1 July 1956-2.3 °C19 January 195621.1 °C260 mm16011
195542.2 °C3 August 1955-0.3 °C10 January 195521.0 °C262 mm1491
195442.0 °C20 July 1954-1.4 °C7 January 195421.0 °C466 mm1672
195342.5 °C22 June 1953-3.1 °C23 December 195321.1 °C520 mm1743
195242.4 °C1 July 1952-2.4 °C21 January 195221.2 °C231 mm1609
195141.9 °C12 July 1951-1.7 °C12 January 195121.4 °C452 mm1713
195041.5 °C11 June 1950-6.4 °C29 January 195021.0 °C278 mm16215
194942.5 °C7 July 1949-12.3 °C11 January 194920.5 °C393 mm16725
194841.9 °C14 July 1948-2.2 °C31 December 194820.8 °C326 mm1566
194742.9 °C6 July 1947-0.6 °C28 December 194721.5 °C314 mm1633
194642.0 °C15 July 1946-2.4 °C14 January 194621.6 °C127 mm1839
194541.2 °C25 June 1945-1.7 °C8 January 194521.7 °C126 mm1689
194442.8 °C3 July 1944-8.0 °C21 December 194422.0 °C131 mm1707
194341.1 °C28 July 1943-1.8 °C3 February 194321.6 °C179 mm1709
194243.1 °C2 July 1942-2.7 °C8 January 194222.6 °C74 mm1708
194142.9 °C11 July 1941-0.6 °C6 January 194122.4 °C27 mm1701
194042.3 °C8 July 1940-1.0 °C17 January 194021.4 °C64 mm1725

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Across the whole year

Average daily high
30.1 °C
+2.4 °C
Hot days (≥ 30 °C)
203 d/yr
+33
Frost days (< 0 °C)
9 d/yr
+2
Annual rainfall
227 mm
+1 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan17.0 °C+2.5 °C7 mm-54 mm
Feb16.7 °C0.0 °C33 mm-10 mm
Mar22.3 °C+1.3 °C35 mm-7 mm
Apr32.9 °C+6.0 °C0 mm-13 mm
May37.8 °C+4.3 °C0 mm-3 mm
Jun39.8 °C+1.6 °C0 mm-0 mm
Jul40.9 °C+1.7 °C6 mm+4 mm
Aug40.4 °C+2.1 °C0 mm-2 mm
Sep37.6 °C+2.4 °C0 mm-0 mm
Oct31.6 °C+1.9 °C0 mm-1 mm
Nov25.5 °C+3.1 °C0 mm-14 mm
Dec17.5 °C+0.8 °C145 mm+99 mm

The year's extremes

Hottest day
43.3 °C
20 Jul 2025
Coldest day
-3.2 °C
4 Jan 2025
Wettest day
46.1 mm
16 Dec 2025
Windiest day
21.8 km/h
12 Apr 2025
Strongest gust
60.5 km/h
12 Apr 2025
Hottest feels-like
43.9 °C
30 Jul 2025
Coldest feels-like
-7.0 °C
4 Jan 2025
Sunniest day
13.0 h
2 May 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Jahrom?

Jahrom has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 21.7 °C and it receives 226 mm of precipitation per year.

What is the hottest day ever recorded in Jahrom?

The hottest day measured in Jahrom between 1940 and 2025 was 6 June 2021, reaching 44.4 °C.

What is the coldest day in Jahrom?

The coldest day measured in Jahrom between 1940 and 2025 was 21 January 1990, at -12.6 °C.

Does it snow in Jahrom?

Almost never: Jahrom sees virtually no snow, with about 7 frost days per year.

Has the climate of Jahrom warmed?

Yes: Jahrom warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Jahrom?

The wettest day measured in Jahrom between 1940 and 2025 was 11 February 1980, with 78 mm of rain in 24 hours.

What was the windiest day in Jahrom?

The windiest day measured in Jahrom between 1940 and 2025 was 2 April 1968, with winds reaching 27.2 km/h.

What is the warmest month in Jahrom?

The warmest month in Jahrom is July (33.0 °C on average); the coldest is January (9.1 °C).

How much does it rain in Jahrom?

Jahrom receives on average 226 mm of precipitation per year, spread over about 25 rainy days.

Is it sunny in Jahrom?

Jahrom gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.

What is the biggest single-day snowfall in Jahrom?

The heaviest 24-hour snowfall measured in Jahrom between 1940 and 2025 was 18 January 1975, with 9.9 cm.

Are there tropical nights in Jahrom?

Yes: Jahrom has on average 124 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Jahrom?

In Jahrom, between 1940 and 2025, the highest apparent temperature reached 45.6 °C on 5 July 2019, and the lowest was -17.0 °C on 21 January 1990.

Compare Jahrom with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Jahrom

Other cities — Iran