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Weather & Climate in St. Louis, PE
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
St. Louis has a cool climate with an average annual temperature of 41°F (5°C). Winters average 14°F in January while summers reach 65°F in July. The area gets 258 sunny days per year, above the national average. Annual precipitation totals 43.2 inches. The area receives 18.9 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 144 feet.
Temperature
14°F Jan (-10°C)
65°F Jul (18°C)
| Annual Average | 40.5°F |
| 25% below US avg | |
| January Average | 14°F (-10°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 258 days/yr |
Geography
| Elevation | 144 ft (44 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 261/sq mi |
| Coordinates | 46.8860°N, 64.1441°W |
| Timezone | America/Halifax |
Precipitation & Snow
Air Quality
Earthquake History
8 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.
| Jul 20, 2007 | 28 km W of Miramichi, Canada | M3.2 | 133 km | 5 km |
| Apr 22, 2016 | New Brunswick, Canada | M2.9 | 148 km | 5 km |
| Mar 7, 2019 | 15 km WSW of Miramichi, Canada | M2.9 | 117 km | 10 km |
| Nov 28, 2013 | 55 km NNW of Sussex, Canada | M2.8 | 150 km | 5 km |
| Mar 7, 2008 | 32 km S of Miramichi, Canada | M2.7 | 100 km | 5 km |
| Apr 22, 2016 | 69 km SSW of Miramichi, Canada | M2.6 | 148 km | 5 km |
| Nov 28, 2013 | 60 km SSW of Miramichi, Canada | M2.6 | 129 km | 5 km |
| Apr 24, 2015 | 67 km NW of Salisbury, Canada | M2.5 | 134 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
3 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2010 | Earl | Category 1 | 75 mph | 170 km |
| 2003 | Juan | Category 2 | 98 mph | 102 km |
| 1996 | Hortense | Category 1 | 81 mph | 255 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 14°F (-10°C) | 4.2 in | Coldest |
| February | 16°F (-9°C) | 3.1 in | Driest |
| March | 25°F (-4°C) | 3.2 in | |
| April | 36°F (2°C) | 3.1 in | |
| May | 48°F (9°C) | 3.7 in | |
| June | 58°F (14°C) | 3.4 in | |
| July | 65°F (18°C) | 3.5 in | Warmest |
| August | 64°F (18°C) | 3.4 in | |
| September | 56°F (13°C) | 3.4 in | |
| October | 46°F (8°C) | 3.9 in | |
| November | 36°F (2°C) | 4.4 in | Wettest |
| December | 23°F (-5°C) | 4.1 in |
St. Louis has a seasonal temperature swing of 51°F / from 14°F in January to 65°F in July. Total annual precipitation is 43.2 inches, with November being the wettest month (4.4") and February the driest (3.1").