Climate averages 1991–2020
Jahrom weather
in January.
A mild, moderately wet month: the coolest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a mild month in Jahrom: daytime highs average 15.6°C and nights cool to about 5.7°C. By daytime temperature it is the coolest month of the year.
Expect about 65 mm of rain on roughly 6 days, which makes January a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 33 min on an average January day.
The nearest other city in this atlas is Fasā (49 km away). In January its highs average 12.8°C, 2.8°C cooler than Jahrom, with 51 mm of rain.
Among the 128 cities listed in Iran, Jahrom ranks 20th of 128 for the warmest January highs and 96th of 128 for the driest January (rainfall, lowest first). The mean January high of those 128 cities is 8.6°C; Jahrom is 7.0°C warmer than that mean.
From January to February, average highs rise by 2.3°C to 17.9°C, and monthly rainfall falls from 65 mm to 49 mm.
The annual picture
January 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
Jahrom climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 15.6°C5.7°C | 5.7°C | 65 | 6.1 | 10.511 h |
| February | 17.9°C7.3°C | 7.3°C | 49 | 5.1 | 11.211 h |
| March | 22.2°C10.8°C | 10.8°C | 50 | 5.0 | 12.012 h |
| April | 28.4°C16.1°C | 16.1°C | 13 | 2.1 | 12.813 h |
| May | 35.2°C21.8°C | 21.8°C | 0.9 | 0.3 | 13.614 h |
| June | 39.6°C25.2°C | 25.2°C | 0.2 | 0.1 | 13.914 h |
| July | 40.7°C26.9°C | 26.9°C | 1.0 | 0.4 | 13.814 h |
| August | 39.8°C25.9°C | 25.9°C | 2.1 | 0.8 | 13.213 h |
| September | 36.4°C22.7°C | 22.7°C | 0.6 | 0.2 | 12.412 h |
| October | 30.8°C18.0°C | 18.0°C | 0.5 | 0.2 | 11.512 h |
| November | 23.3°C12.0°C | 12.0°C | 15 | 2.2 | 10.811 h |
| December | 18.3°C7.7°C | 7.7°C | 45 | 3.6 | 10.410 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
January in nearby cities
- Fasā in JanuaryIran · 49 kmHigh 12.8°C · Low 2.7°C · 51 mm rain
- Dārāb in JanuaryIran · 100 kmHigh 14.0°C · Low 3.8°C · 60 mm rain
- Shiraz in JanuaryIran · 159 kmHigh 10.7°C · Low 1.0°C · 98 mm rain
- Marvdasht in JanuaryIran · 170 kmHigh 10.3°C · Low -2.0°C · 63 mm rain
- Shahr-e Ṣadrā in JanuaryIran · 177 kmHigh 8.6°C · Low -2.1°C · 82 mm rain
- Kāzerūn in JanuaryIran · 223 kmHigh 14.3°C · Low 5.2°C · 112 mm rain
- Sirjan in JanuaryIran · 232 kmHigh 10.8°C · Low -0.6°C · 37 mm rain
- Borāzjān in JanuaryIran · 244 kmHigh 19.0°C · Low 9.0°C · 73 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 Jahrom) is explained once on the Jahrom year overview and on the Sources, method and limits page.