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Weather & Climate in Janjaillo, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Janjaillo has a cool climate with an average annual temperature of 40°F (4°C). Winters average 39°F in January while summers reach 39°F in July / relatively mild seasonal variation. The area gets 362 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 67.4 inches (wetter than the 38-inch national average). The area receives 51.7 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 13,087 feet.
Temperature
39°F Jan (4°C)
39°F Jul (4°C)
| Annual Average | 39.9°F |
| 26% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 39°F (4°C) |
| Sunny Days | 362 days/yr |
Geography
| Elevation | 13,087 ft (3,989 m) |
| Area | 67.9 sq mi (175.9 km²) |
| Population Density | 1/sq mi |
| Coordinates | -11.7647°N, 75.6112°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
167 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Apr 18, 1993 | 15 km SE of Lachaqui, Peru | M6.3 | 101 km | 106 km |
| Feb 21, 2001 | 5 km NNE of Mazamari, Peru | M5.7 | 131 km | 33 km |
| Oct 4, 1999 | 21 km ENE of Paucartambo, Peru | M5.6 | 120 km | 33 km |
| Jan 23, 1990 | 4 km WSW of Cuenca, Peru | M5.6 | 96 km | 104 km |
| Jan 7, 2022 | 6 km NW of Cocachacra, Peru | M5.6 | 106 km | 96 km |
| Nov 25, 2013 | 12 km SE of Omas, Peru | M5.5 | 113 km | 77 km |
| Feb 14, 2019 | 49 km NNE of Paucarbamba, Peru | M5.5 | 149 km | 10 km |
| Feb 17, 2005 | 7 km W of Carhuamayo, Peru | M5.4 | 107 km | 126 km |
| Nov 6, 1992 | 18 km NNW of Mucllo, Peru | M5.3 | 62 km | 14 km |
| Mar 18, 1999 | 21 km NNE of Huancaya, Peru | M5.3 | 32 km | 116 km |
| May 13, 2019 | 11 km WNW of Salcabamba, Peru | M5.2 | 91 km | 90 km |
| May 17, 2018 | 7 km E of Mala, Peru | M5.2 | 144 km | 56 km |
| Aug 1, 2009 | 8 km SSW of Chambara, Peru | M5.2 | 43 km | 101 km |
| Jun 16, 1992 | 21 km N of Santa Rosa, Peru | M5.2 | 140 km | 33 km |
| May 7, 1997 | 1 km WSW of Oxapampa, Peru | M5.1 | 134 km | 33 km |
| Apr 7, 2001 | 3 km E of Oxapampa, Peru | M5.1 | 135 km | 33 km |
| Apr 10, 2013 | 2 km WSW of Villa Rica, Peru | M5.1 | 118 km | 103 km |
| Oct 18, 1994 | 1 km SE of Villa Rica, Peru | M5.0 | 119 km | 71 km |
| Feb 20, 1992 | 21 km NNE of Santa Rosa, Peru | M5.0 | 144 km | 33 km |
| Feb 18, 2025 | 9 km NW of Mariposa, Peru | M5.0 | 98 km | 103 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 30.0 m (98 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1971 | CHUNGAR | Meteorological | 30.0 m | 600 | 123 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 4.5 in | Coldest |
| February | 50°F (10°C) | 5.0 in | Wettest |
| March | 50°F (10°C) | 4.8 in | |
| April | 49°F (10°C) | 2.1 in | |
| May | 48°F (9°C) | 0.6 in | |
| June | 47°F (8°C) | 0.3 in | |
| July | 39°F (4°C) | 0.2 in | Driest |
| August | 48°F (9°C) | 0.6 in | |
| September | 49°F (10°C) | 1.3 in | |
| October | 50°F (10°C) | 2.6 in | |
| November | 51°F (10°C) | 2.8 in | Warmest |
| December | 50°F (10°C) | 4.0 in |
Janjaillo has a seasonal temperature swing of 12°F / from 39°F in January to 51°F in November. Total annual precipitation is 28.9 inches, with February being the wettest month (5.0") and July the driest (0.2").