Climate averages 1991–2020
Borūjerd weather
in December.
A cold, moderately wet month: the 10th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Borūjerd: daytime highs average 7.3°C and nights cool to about -1.2°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 67 mm of rain on roughly 8 days, which makes December a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 57 min on an average December day.
The nearest other city in this atlas is Malāyer (45 km away). In December its highs average 6.7°C, 0.6°C cooler than Borūjerd, with 47 mm of rain.
Among the 128 cities listed in Iran, Borūjerd ranks joint 93rd of 128 for the warmest December highs and 99th of 128 for the driest December (rainfall, lowest first). The mean December high of those 128 cities is 10.9°C; Borūjerd is 3.6°C cooler than that mean.
From December to January, average highs fall by 4.0°C to 3.3°C, and monthly rainfall rises from 67 mm to 71 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
Borūjerd 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-4.8°C | -4.8°C | 71 | 9.5 | 10.210 h |
| February | 4.8°C-3.5°C | -3.5°C | 74 | 9.9 | 10.911 h |
| March | 11.1°C1.6°C | 1.6°C | 99 | 11.3 | 12.012 h |
| April | 17.9°C7.2°C | 7.2°C | 84 | 12.4 | 13.013 h |
| May | 24.3°C12.9°C | 12.9°C | 37 | 8.3 | 13.914 h |
| June | 31.5°C18.5°C | 18.5°C | 3.1 | 0.9 | 14.414 h |
| July | 35.4°C22.3°C | 22.3°C | 1.1 | 0.2 | 14.214 h |
| August | 35.2°C21.9°C | 21.9°C | 0.7 | 0.2 | 13.413 h |
| September | 30.6°C17.6°C | 17.6°C | 2.2 | 0.7 | 12.412 h |
| October | 23.2°C11.6°C | 11.6°C | 27 | 5.3 | 11.411 h |
| November | 14.0°C4.4°C | 4.4°C | 61 | 7.9 | 10.410 h |
| December, selected | 7.3°C-1.2°C | -1.2°C | 67 | 8.3 | 9.910 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
- Malāyer in DecemberIran · 45 kmHigh 6.7°C · Low -3.0°C · 47 mm rain
- Nahāvand in DecemberIran · 48 kmHigh 7.1°C · Low -2.4°C · 62 mm rain
- Dorūd in DecemberIran · 53 kmHigh 8.7°C · Low -0.4°C · 87 mm rain
- Khorramabad in DecemberIran · 58 kmHigh 10.6°C · Low 0.5°C · 88 mm rain
- Arāk in DecemberIran · 90 kmHigh 8.3°C · Low -3.1°C · 31 mm rain
- Hamadān in DecemberIran · 103 kmHigh 7.0°C · Low -1.3°C · 48 mm rain
- Alīgūdarz in DecemberIran · 103 kmHigh 5.1°C · Low -5.7°C · 41 mm rain
- Kūhdasht in DecemberIran · 113 kmHigh 11.0°C · Low 0.9°C · 90 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 Borūjerd) is explained once on the Borūjerd year overview and on the Sources, method and limits page.