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About Iran /link_arrow.gif) Tourism & Travel Climate
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Iran's climate is mostly arid or semiarid, to subtropical along the Caspian coast. On the northern edge of the country (the Caspian coastal plain) temperatures nearly fall below freezing and remain humid for the rest of the year. Summer temperatures rarely exceed 29°C (84°F). Annual precipitation is 680 mm (27 in) in the eastern part of the plain and more than 1,700 mm (67 in) in the western. To the west, settlements in the Zagros Mountains basin experience lower temperatures, severe winters, sub-freezing average daily temperatures and heavy snowfall. The eastern and central basins are arid, with less than 200 mm (eight in) of rain and have occasional desert. Average summer temperatures exceed 38°C (100°F). The coastal plains of the Persian Gulf and Gulf of Oman in southern Iran have mild winters, and very humid and hot summers. The annual precipitation ranges from 135 to 355 mm (five to 14 inch).
The tables below display average monthly climate indicators in major cities based on 8 years of historical weather readings.
TEHRAN 35 68 N, 51 35 E, 3907 feet (1191 meters) above sea level
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Jan
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Feb
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Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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|
 Avg. Temperature °C
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5
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6
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10
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17
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22
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28
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30
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31
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25
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18
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11
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6
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 Avg. Max Temperature °C
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8
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11
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15
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22
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27
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33
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36
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36
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31
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23
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16
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10
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|
 Avg. Min Temperature °C
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1
|
2
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6
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12
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17
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21
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24
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25
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20
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13
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7
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3
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|
 Avg. Rain Days
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3
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3
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6
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12
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17
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21
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24
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25
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20
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13
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7
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3
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 Avg. Snow Days
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2
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1
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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TABRIZ 38 8 N, 46 28 E, 4465 feet (1361 meters) above sea level
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Jan
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Feb
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Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Avg. Temperature °C
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0
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0
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5
|
12
|
17
|
22
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25
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26
|
21
|
13
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6
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1
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Avg. Max Temperature °C
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3
|
5
|
10
|
17
|
22
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28
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31
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32
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27
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20
|
11
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5
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Avg. Min Temperature °C
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-3
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-3
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1
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6
|
11
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16
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20
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20
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15
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8
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2
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-1
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Avg. Rain Days
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2
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2
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5
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6
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5
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1
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1
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0
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1
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3
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3
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3
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Avg. Snow Days
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4
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3
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2
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0
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0
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0
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0
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0
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0
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0
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0
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2
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MASHHAD 36 26 N, 59 63 E, 3215 feet (980 meters) above sea level.
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Jan
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Feb
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Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Avg. Temperature °C
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2
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3
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8
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15
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20
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25
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27
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26
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21
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14
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8
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4
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Avg. Max Temperature °C
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7
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10
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13
|
21
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27
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32
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33
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33
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29
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21
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15
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10
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Avg. Min Temperature °C
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-2
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-1
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2
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9
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13
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18
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21
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18
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13
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7
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2
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0
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Avg. Rain Days
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2
|
3
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5
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4
|
2
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1
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0
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0
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0
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2
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2
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2
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Avg. Snow Days
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3
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2
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2
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0
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0
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0
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0
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0
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0
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0
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0
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1
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SHIRAZ 29 53 N, 52 58 E, 4891 feet (1491 meters) above sea level.
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Jan
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Feb
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Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Avg. Temperature °C
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6
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8
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11
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18
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23
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28
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30
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30
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25
|
20
|
12
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8
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Avg. Max Temperature °C
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11
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13
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17
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24
|
30
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35
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37
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36
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32
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27
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18
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13
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Avg. Min Temperature °C
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1
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3
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6
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11
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16
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20
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23
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22
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17
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12
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6
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3
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Avg. Rain Days
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4
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5
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5
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2
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0
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0
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0
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0
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0
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1
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3
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4
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Avg. Snow Days
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1
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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External Link
Iran Meteorological Organization
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