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Weather & Climate in Sisian, Armenia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sisian has a cool climate with an average annual temperature of 41°F (5°C). Winters average 19°F in January while summers reach 63°F in July. The area gets 297 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 21.5 inches (drier than the 38-inch national average). The area receives 6.7 inches of snow annually. The city sits at an elevation of 5,279 feet.
Temperature
19°F Jan (-7°C)
63°F Jul (17°C)
| Annual Average | 41.4°F |
| 23% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 5,279 ft (1,609 m) |
| Area | 3.5 sq mi (9.0 km²) |
| Population Density | 3,837/sq mi |
| Coordinates | 39.5219°N, 46.0270°W |
| Timezone | Asia/Yerevan |
Precipitation & Snow
Air Quality
Earthquake History
114 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.4.
| Aug 11, 2012 | 26 km SW of Ahar, Iran | M6.4 | 150 km | 11 km |
| Aug 11, 2012 | 30 km WSW of Ahar, Iran | M6.2 | 140 km | 12 km |
| Nov 7, 2012 | 39 km W of Ahar, Iran | M5.4 | 133 km | 10 km |
| Aug 15, 2012 | 35 km WSW of Ahar, Iran | M5.3 | 136 km | 4 km |
| Feb 5, 2021 | 9 km SSW of Vahan, Armenia | M5.2 | 123 km | 13 km |
| Mar 16, 2023 | 11 km ESE of Khowy, Iran | M5.2 | 140 km | 10 km |
| Jan 28, 2023 | 7 km SSW of Khowy, Iran | M5.1 | 150 km | 10 km |
| Aug 11, 2012 | 27 km W of Ahar, Iran | M5.1 | 132 km | 4 km |
| Aug 14, 2012 | 24 km W of Ahar, Iran | M5.1 | 136 km | 6 km |
| Apr 22, 1996 | 31 km S of Horadiz, Azerbaijan | M5.0 | 122 km | 29 km |
| Aug 11, 2012 | 29 km W of Ahar, Iran | M5.0 | 135 km | 10 km |
| Aug 11, 2012 | 25 km W of Ahar, Iran | M5.0 | 137 km | 4 km |
| Nov 16, 2012 | 42 km WNW of Ahar, Iran | M4.9 | 118 km | 15 km |
| Feb 13, 2021 | 0 km NNE of Hovtashen, Armenia | M4.9 | 146 km | 10 km |
| Aug 16, 2012 | 32 km WSW of Ahar, Iran | M4.9 | 138 km | 10 km |
| Jan 26, 2013 | 23 km WSW of Ahar, Iran | M4.8 | 147 km | 6 km |
| Nov 18, 1998 | 27 km SE of Khowy, Iran | M4.8 | 149 km | 33 km |
| Aug 11, 2012 | 32 km W of Ahar, Iran | M4.8 | 135 km | 8 km |
| Apr 18, 2013 | 29 km W of Marand, Iran | M4.8 | 135 km | 10 km |
| Aug 11, 2012 | 36 km WSW of Ahar, Iran | M4.8 | 143 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Vaiyots-Sar (55 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Vaiyots-Sar | Pyroclastic cone(s) | 2,575 m (8,448 ft) | -2000 | 55 km |
| Porak | Stratovolcano | 3,029 m (9,938 ft) | -778 | 61 km |
| Ghegham Volcanic Ridge | Volcanic field | 3,597 m (11,801 ft) | -1900 | 122 km |
| Ararat | Stratovolcano | 5,165 m (16,946 ft) | 1840 | 149 km |
| Tenduruk Dagi | Shield | 3,514 m (11,529 ft) | 1855 | 186 km |
| Aragats | Stratovolcano | 4,095 m (13,435 ft) | Unknown | 192 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 1.0 in | Driest |
| February | 19°F (-7°C) | 1.3 in | Coldest |
| March | 26°F (-3°C) | 2.0 in | |
| April | 40°F (4°C) | 2.8 in | |
| May | 47°F (8°C) | 3.1 in | Wettest |
| June | 55°F (13°C) | 2.6 in | |
| July | 63°F (17°C) | 1.7 in | |
| August | 64°F (18°C) | 1.3 in | Warmest |
| September | 58°F (14°C) | 1.3 in | |
| October | 46°F (8°C) | 2.0 in | |
| November | 35°F (2°C) | 1.3 in | |
| December | 25°F (-4°C) | 1.1 in |
Sisian has a seasonal temperature swing of 45°F / from 19°F in February to 64°F in August. Total annual precipitation is 21.5 inches, with May being the wettest month (3.1") and January the driest (1.0").