Climate averages 1991–2020
Mehestan weather
in December.
A cold, fairly dry month: the 10th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Mehestan: daytime highs average 5.8°C and nights cool to about -3.4°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 34 mm of rain on roughly 7 days, which makes December a fairly dry month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 46 min on an average December day.
The nearest other city in this atlas is Naz̧arābād (13 km away). In December its highs average 7.7°C, 1.9°C warmer than Mehestan, with 40 mm of rain.
Among the 128 cities listed in Iran, Mehestan ranks joint 111th of 128 for the warmest December highs and joint 46th of 128 for the driest December (rainfall, lowest first). The mean December high of those 128 cities is 10.9°C; Mehestan is 5.2°C cooler than that mean.
From December to January, average highs fall by 2.4°C to 3.3°C, and monthly rainfall rises from 34 mm to 35 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Mehestan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.3°C-6.1°C | -6.1°C | 35 | 6.7 | 10.010 h |
| February | 5.2°C-4.6°C | -4.6°C | 42 | 7.9 | 10.911 h |
| March | 10.6°C-0.1°C | -0.1°C | 53 | 9.2 | 11.912 h |
| April | 16.9°C5.7°C | 5.7°C | 47 | 8.9 | 13.113 h |
| May | 23.1°C11.8°C | 11.8°C | 19 | 4.7 | 14.114 h |
| June | 29.7°C17.1°C | 17.1°C | 3.5 | 1.0 | 14.615 h |
| July | 32.9°C20.3°C | 20.3°C | 2.3 | 0.7 | 14.314 h |
| August | 32.1°C20.1°C | 20.1°C | 2.5 | 0.5 | 13.514 h |
| September | 27.2°C16.0°C | 16.0°C | 2.0 | 0.6 | 12.412 h |
| October | 19.9°C9.7°C | 9.7°C | 14 | 3.1 | 11.311 h |
| November | 11.1°C1.6°C | 1.6°C | 35 | 6.1 | 10.310 h |
| December, selected | 5.8°C-3.4°C | -3.4°C | 34 | 6.7 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Naz̧arābād in DecemberIran · 13 kmHigh 7.7°C · Low -1.4°C · 40 mm rain
- Kamālshahr in DecemberIran · 18 kmHigh 7.5°C · Low -2.9°C · 38 mm rain
- Karaj in DecemberIran · 28 kmHigh 7.5°C · Low -3.3°C · 37 mm rain
- Moḩammad Shahr in DecemberIran · 30 kmHigh 8.0°C · Low -2.9°C · 37 mm rain
- Shahre Jadide Andisheh in DecemberIran · 42 kmHigh 8.3°C · Low -2.3°C · 37 mm rain
- Shahrīār in DecemberIran · 46 kmHigh 8.5°C · Low -2.1°C · 37 mm rain
- Bāghestān in DecemberIran · 52 kmHigh 9.2°C · Low -1.4°C · 43 mm rain
- Moḩammadīyeh in DecemberIran · 57 kmHigh 7.2°C · Low -1.7°C · 42 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Mehestan) is explained once on the Mehestan year overview and on the Sources, method and limits page.