Weather & Climate in O'Leary, PE

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

O'Leary has a cool climate with an average annual temperature of 41°F (5°C). Winters average 15°F in January while summers reach 65°F in July. Annual precipitation totals 44.6 inches. The area receives 14.9 inches of snow annually. The city sits at an elevation of 115 feet.

Temperature

15°F Jan (-9°C) 65°F Jul (18°C)
Annual Average40.8°F
24% below US avg
January Average15°F (-9°C)
July Average65°F (18°C)

Geography

Elevation115 ft (35 m)
Area145.0 sq mi (375.5 km²)
Population Density18/sq mi
Coordinates46.7169°N, 64.2320°W
TimezoneAmerica/Halifax

Precipitation & Snow

Annual Rainfall 44.6"
17% above US avg
Snowfall 14.9"
Wettest Month (Nov) 4.37"
Driest Month (Feb) 3.23"

Air Quality

Earthquake History

12 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.

Mar 21, 2013 60 km NNE of Noonan, Canada M3.2 148 km 5 km
Jul 20, 2007 28 km W of Miramichi, Canada M3.2 131 km 5 km
Jul 3, 2024 67 km SW of Miramichi, Canada M3.1 142 km 12 km
Apr 22, 2016 New Brunswick, Canada M2.9 137 km 5 km
Mar 7, 2019 15 km WSW of Miramichi, Canada M2.9 114 km 10 km
Nov 28, 2013 55 km NNW of Sussex, Canada M2.8 135 km 5 km
Mar 7, 2008 32 km S of Miramichi, Canada M2.7 92 km 5 km
Feb 1, 2018 54 km NNW of Sussex, Canada M2.6 138 km 2 km
Feb 2, 2018 55 km NNW of Sussex, Canada M2.6 139 km 2 km
Apr 22, 2016 69 km SSW of Miramichi, Canada M2.6 137 km 5 km
Nov 28, 2013 60 km SSW of Miramichi, Canada M2.6 118 km 5 km
Apr 24, 2015 67 km NW of Salisbury, Canada M2.5 122 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Hurricane History

4 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 157 km
2009 Bill Category 1 75 mph 291 km
2003 Juan Category 2 98 mph 86 km
1996 Hortense Category 1 81 mph 250 km
Source: NOAA IBTrACS (Category 1+, 1980-2026).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 15°F (-9°C) 4.1 in Coldest
February 16°F (-9°C) 3.2 in Driest
March 25°F (-4°C) 3.4 in
April 36°F (2°C) 3.4 in
May 48°F (9°C) 3.9 in
June 58°F (15°C) 3.4 in
July 65°F (18°C) 3.6 in Warmest
August 64°F (18°C) 3.4 in
September 56°F (13°C) 3.8 in
October 46°F (8°C) 3.9 in
November 36°F (2°C) 4.4 in Wettest
December 23°F (-5°C) 4.2 in

O'Leary has a seasonal temperature swing of 50°F / from 15°F in January to 65°F in July. Total annual precipitation is 44.6 inches, with November being the wettest month (4.4") and February the driest (3.2").

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