| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Teheran in December is cool at 5 °C (41 °F).
- Afternoons can be quite mild with average high temperatures reaching 10 °C (50 °F).
- Overnight temperatures are generally very cool with an average low of 1 °C (33.8 °F).
- In December the mean diurnal temperature range/ variation is 9 °C (16.2 °F).
- The weather in December is dry with occasional sleet, rain or snow. A mere 36.3mm (1.4in) of fluid accrues during on average 5 days.
- The shortest day is 9:44 long and the longest day is 9:54 long with an average length of 9:47.
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Weather Trend Graph for December in Teheran, Iran
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