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Houston US
Karaj IR

Yearly weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Period	Houston	Karaj
Jan	16.7°C	5.7°C
Feb	19.3°C	7.2°C
Mar	23.7°C	13.0°C
Apr	26.1°C	19.2°C
May	30.4°C	25.3°C
Jun	33.4°C	32.3°C
Jul	33.9°C	34.7°C
Aug	34.4°C	33.0°C
Sep	32.2°C	28.7°C
Oct	28.2°C	20.7°C
Nov	22.3°C	12.6°C
Dec	19.3°C	7.8°C
Average	26.7°C	20.0°C

Minimum Temperatures

Period	Houston	Karaj
Jan	9.0°C	-1.7°C
Feb	11.3°C	-1.1°C
Mar	15.0°C	4.3°C
Apr	17.3°C	9.3°C
May	21.9°C	14.4°C
Jun	24.9°C	20.3°C
Jul	25.7°C	22.7°C
Aug	26.4°C	21.9°C
Sep	24.2°C	17.8°C
Oct	19.6°C	11.7°C
Nov	14.3°C	5.2°C
Dec	11.7°C	0.8°C
Average	18.4°C	10.5°C

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	Houston	Karaj
Jan	4.2 hours/day	6.1 hours/day
Feb	3.2 hours/day	6.4 hours/day
Mar	4.4 hours/day	7.2 hours/day
Apr	4.9 hours/day	8.3 hours/day
May	5.8 hours/day	10.6 hours/day
Jun	5.9 hours/day	13.9 hours/day
Jul	5.6 hours/day	12.7 hours/day
Aug	5.9 hours/day	12.6 hours/day
Sep	5.1 hours/day	12.4 hours/day
Oct	5.7 hours/day	9.0 hours/day
Nov	4.4 hours/day	6.8 hours/day
Dec	3.9 hours/day	6.1 hours/day
Average	4.9 hours/day	9.3 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	Houston	Karaj
Jan	18.1km/h	12.9km/h
Feb	18.8km/h	14.2km/h
Mar	20.2km/h	16.0km/h
Apr	21.1km/h	16.0km/h
May	19.7km/h	17.6km/h
Jun	18.1km/h	18.1km/h
Jul	16.8km/h	17.8km/h
Aug	17.1km/h	15.7km/h
Sep	16.0km/h	15.0km/h
Oct	17.3km/h	14.4km/h
Nov	16.8km/h	12.2km/h
Dec	17.7km/h	11.2km/h
Average	18.1km/h	15.1km/h

Humidity

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Astronomy

Sunrise Time

Sunrise times are output in the local timezone of each place.

Sunset Time

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	Houston	Karaj
Jan	10:29 hours	10:02 hours
Feb	11:10 hours	10:47 hours
Mar	12:01 hours	11:27 hours
Apr	12:49 hours	12:25 hours
May	13:08 hours	12:50 hours
Jun	13:23 hours	13:08 hours
Jul	13:22 hours	13:06 hours
Aug	13:01 hours	12:39 hours
Sep	12:19 hours	11:44 hours
Oct	11:25 hours	10:30 hours
Nov	10:35 hours	9:59 hours
Dec	10:16 hours	9:47 hours
Average	12:00 hours	11:30 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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Period	Houston	Karaj
Jan	4.4mm	1.5mm
Feb	2.7mm	2.1mm
Mar	2.7mm	2.0mm
Apr	3.8mm	1.6mm
May	5.7mm	0.9mm
Jun	4.7mm	0.4mm
Jul	4.2mm	0.1mm
Aug	5.8mm	0.0mm
Sep	5.1mm	0.2mm
Oct	3.4mm	0.6mm
Nov	4.4mm	1.2mm
Dec	3.5mm	1.1mm
Average	4.2mm	1.0mm

Period	Houston	Karaj
Jan	65.6%	48.3%
Feb	72.8%	49.8%
Mar	69.7%	43.5%
Apr	69.4%	37.0%
May	70.3%	32.1%
Jun	67.3%	24.1%
Jul	68.6%	24.9%
Aug	65.5%	24.8%
Sep	66.5%	27.3%
Oct	63.4%	36.3%
Nov	67.6%	47.1%
Dec	67.8%	49.3%
Average	67.9%	37.0%

Period	Houston	Karaj
Jan	7:17	7:14
Feb	7:01	6:53
Mar	7:08	6:28
Apr	6:55	6:18
May	6:28	5:46
Jun	6:21	5:35
Jul	6:32	5:47
Aug	6:50	6:10
Sep	7:07	6:20
Oct	7:25	6:13
Nov	6:55	6:43
Dec	7:10	7:08
Average	6:54	6:24

Period	Houston	Karaj
Jan	17:46	17:17
Feb	18:10	17:47
Mar	19:09	18:27
Apr	19:49	19:25
May	20:08	19:50
Jun	20:23	20:08
Jul	20:22	20:06
Aug	20:01	19:39
Sep	19:26	18:44
Oct	18:50	17:30
Nov	17:35	16:59
Dec	17:26	16:55
Average	19:06	18:36

Weather in Houston and Karaj

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Daily Forecast

Yearly weather

Temperatures

Conditions

Astronomy

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	Houston US	Karaj IR
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