Weather & Climate in Mainville, PA

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

Mainville experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 27°F in January while summers reach 73°F in July. The area gets 275 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 48.0 inches (wetter than the 38-inch national average). The area receives 33.5 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 780 feet.

Temperature

27°F Jan (-3°C) 73°F Jul (23°C)

Annual Average	50.5°F
	6% below US avg
January Average	27°F (-3°C)
July Average	73°F (23°C)
Sunny Days	275 days/yr

Geography

Elevation	780 ft (238 m)
Area	0.7 sq mi (1.8 km²)
Population Density	174/sq mi
Coordinates	40.9826°N, 76.3695°W
Timezone	America/New_York
County	Northumberland County County
Nearest Airport	Hazleton Regional (HZL) 20 miles away

Precipitation & Snow

Annual Rainfall 48.0"

26% above US avg

Snowfall 33.5"

Wettest Month (Jun) 4.57"

Driest Month (Feb) 2.48"

Air Quality

AQI Median	40.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	79.2 / 100
Social Vulnerability	52.8 / 100
Community Resilience	89.3 / 100

Hazard Breakdown

Tornado	Relatively Low
Hurricane	Relatively Low
Earthquake	Relatively Low
Wildfire	Very Low
Flood	Relatively Moderate
Hail	Very Low
Strong Wind	Relatively High
Heat Wave	Relatively Low
Winter Weather	Relatively High
Lightning	Relatively Moderate
Ice Storm	Relatively Low
Drought	No Rating
Cold Wave	Relatively Low
Landslide	Relatively Low
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

26 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.

Apr 5, 2024	2024 Tewksbury, New Jersey Earthquake	M4.8	139 km	3 km
Jan 16, 1994	2 km W of Sinking Spring, Pennsylvania	M4.6	78 km	5 km
Jan 16, 1994	0 km E of Sinking Spring, Pennsylvania	M4.2	79 km	5 km
Apr 5, 2024	7 km WSW of Gladstone, New Jersey	M3.7	140 km	4 km
Jun 13, 2019	9 km N of Blain, Pennsylvania	M3.4	114 km	27 km
Aug 26, 2003	4 km NNW of Milford, New Jersey	M3.1	114 km	3 km
Jun 3, 2010	4 km ENE of Franklintown, Pennsylvania	M3.1	112 km	2 km
Nov 14, 1997	0 km S of Rothsville, Pennsylvania	M3.0	94 km	5 km
Apr 24, 2009	1 km S of Franklintown, Pennsylvania	M2.9	116 km	1 km
Apr 27, 2024	7 km WSW of Gladstone, New Jersey	M2.9	140 km	5 km
Jan 16, 1994	0 km SSE of Sinking Spring, Pennsylvania	M2.9	80 km	5 km
May 24, 2024	6 km E of Califon, New Jersey	M2.9	139 km	7 km
Sep 15, 2019	5 km ESE of East Berlin, Pennsylvania	M2.8	126 km	5 km
May 10, 1993	1 km NW of Whitfield, Pennsylvania	M2.8	77 km	5 km
Jun 10, 2025	10 km NW of Forksville, Pennsylvania	M2.8	69 km	8 km
Oct 25, 2009	4 km ENE of Franklintown, Pennsylvania	M2.8	111 km	1 km
Mar 11, 1995	0 km ENE of Landisville, Pennsylvania	M2.7	98 km	5 km
Jan 25, 2015	4 km ESE of Downingtown, Pennsylvania	M2.6	125 km	2 km
May 1, 2024	1 km NW of Gladstone, New Jersey	M2.6	145 km	5 km
Jan 18, 1994	3 km SE of Clay, Pennsylvania	M2.6	88 km	5 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.

Year	Name	Category	Max Wind	Closest
1985	Gloria	Category 2	98 mph	258 km

Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

299 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 11 fatalities, 168 injuries.

Date	Rating	Distance	Path	Fatalities
Jul 14, 2004	EF3	80 km	7.5 mi	0
Jun 2, 1998	EF3	76 km	26.0 mi	2
May 31, 1998	EF3	69 km	8.3 mi	0
May 31, 1985	EF3	69 km	19.0 mi	6
Jul 26, 1981	EF3	71 km	3.3 mi	0
Jul 29, 1976	EF3	79 km	25.0 mi	0
Mar 21, 1976	EF3	100 km	0.5 mi	0
Jun 18, 1970	EF3	65 km	1.9 mi	1
Nov 4, 1950	EF3	90 km	15.9 mi	0
May 28, 2019	EF2	100 km	3.1 mi	0
Apr 14, 2019	EF2	23 km	3.7 mi	0
Oct 2, 2018	EF2	92 km	2.2 mi	0
Jun 13, 2018	EF2	53 km	2.9 mi	0
Jun 13, 2018	EF2	86 km	5.2 mi	0
Feb 25, 2017	EF2	59 km	12.5 mi	0
Jul 8, 2014	EF2	64 km	6.7 mi	0
May 23, 2011	EF2	78 km	4.7 mi	0
Apr 28, 2011	EF2	66 km	1.1 mi	0
Jul 29, 2009	EF2	94 km	4.6 mi	0
Dec 1, 2006	EF2	27 km	20.0 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km.

Year	Location	Cause	Max Wave	Deaths	Distance
1895	HIGH BRIDGE, NJ	Earthquake	—	—	130 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

7 wildfires (100+ acres) recorded within 100 km. Largest: PENOBSCOT (2,091 acres, 2009).

Year	Name	Acres Burned	Distance
2009	PENOBSCOT	2,091	49 km
2004	CRYSTAL LAKE	1,838	49 km
2020	SEVEN PINES	790	90 km
2015	RAZOR FIRE	728	62 km
2015	PIPELINE 1	666	60 km
2016	BEAR TOWN	649	99 km
2006	OKOME ROAD	573	97 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	27°F (-3°C)	2.6 in	Coldest
February	27°F (-3°C)	2.5 in	Driest
March	36°F (2°C)	2.9 in
April	47°F (8°C)	3.5 in
May	58°F (14°C)	4.3 in
June	66°F (19°C)	4.6 in	Wettest
July	73°F (23°C)	3.9 in	Warmest
August	70°F (21°C)	3.8 in
September	63°F (17°C)	4.1 in
October	52°F (11°C)	3.3 in
November	41°F (5°C)	3.8 in
December	31°F (-0°C)	3.0 in

Mainville has a seasonal temperature swing of 45°F / from 27°F in January to 73°F in July. Total annual precipitation is 42.2 inches, with June being the wettest month (4.6") and February the driest (2.5").

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