Climate averages 1991–2020
Zanjan weather
in January.
A cold, moderately wet month: the coolest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cold month in Zanjan: daytime highs average 2.2°C and nights cool to about -7.2°C. By daytime temperature it is the coolest month of the year.
Expect about 43 mm of rain on roughly 9 days, which makes January a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 57 min on an average January day.
The nearest other city in this atlas is Mīāneh (108 km away). In January its highs average 5.1°C, 2.9°C warmer than Zanjan, with 35 mm of rain.
Among the 128 cities listed in Iran, Zanjan ranks joint 119th of 128 for the warmest January highs and 72nd of 128 for the driest January (rainfall, lowest first). The mean January high of those 128 cities is 8.6°C; Zanjan is 6.4°C cooler than that mean.
From January to February, average highs rise by 1.9°C to 4.1°C, and monthly rainfall rises from 43 mm to 53 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
Zanjan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 2.2°C-7.2°C | -7.2°C | 43 | 9.0 | 10.010 h |
| February | 4.1°C-6.1°C | -6.1°C | 53 | 10.3 | 10.811 h |
| March | 10.2°C-1.5°C | -1.5°C | 68 | 12.9 | 11.912 h |
| April | 16.5°C3.7°C | 3.7°C | 76 | 13.4 | 13.113 h |
| May | 21.8°C8.5°C | 8.5°C | 58 | 12.4 | 14.114 h |
| June | 26.6°C12.1°C | 12.1°C | 16 | 4.6 | 14.615 h |
| July | 28.5°C13.9°C | 13.9°C | 9.7 | 2.8 | 14.414 h |
| August | 29.1°C14.4°C | 14.4°C | 5.8 | 2.1 | 13.614 h |
| September | 25.6°C11.9°C | 11.9°C | 7.9 | 2.1 | 12.512 h |
| October | 19.1°C7.2°C | 7.2°C | 35 | 6.6 | 11.311 h |
| November | 10.4°C0.5°C | 0.5°C | 55 | 8.6 | 10.310 h |
| December | 4.9°C-4.4°C | -4.4°C | 40 | 7.9 | 9.710 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
- Mīāneh in JanuaryIran · 108 kmHigh 5.1°C · Low -3.6°C · 35 mm rain
- Rasht in JanuaryIran · 118 kmHigh 10.6°C · Low 2.6°C · 125 mm rain
- Bandar-e Anzalī in JanuaryIran · 123 kmHigh 10.4°C · Low 7.3°C · 115 mm rain
- Tākestān in JanuaryIran · 127 kmHigh 5.6°C · Low -4.9°C · 33 mm rain
- Qazvin in JanuaryIran · 142 kmHigh 4.1°C · Low -3.7°C · 47 mm rain
- Lāhījān in JanuaryIran · 147 kmHigh 11.6°C · Low 2.3°C · 116 mm rain
- Alvand in JanuaryIran · 150 kmHigh 5.1°C · Low -4.5°C · 47 mm rain
- Moḩammadīyeh in JanuaryIran · 159 kmHigh 4.8°C · Low -4.4°C · 44 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 Zanjan) is explained once on the Zanjan year overview and on the Sources, method and limits page.