Weather & Climate in Griffin, IN

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

Griffin enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 32°F in January while summers reach 78°F in July. The area gets 290 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 50.0 inches (wetter than the 38-inch national average). The area receives 11.8 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 385 feet.

Temperature

32°F Jan (0°C) 78°F Jul (26°C)

Annual Average	56.2°F
	4% above US avg
January Average	32°F (0°C)
July Average	78°F (26°C)
Sunny Days	290 days/yr

Geography

Elevation	385 ft (117 m)
Area	0.1 sq mi (0.2 km²)
Population Density	1,886/sq mi
Coordinates	38.2043°N, 87.9149°W
Timezone	America/Indiana/Indianapolis
County	Posey County County
Nearest Airport	Evansville Regional (EVV) 24 miles away

Precipitation & Snow

Annual Rainfall 50.0"

32% above US avg

Snowfall 11.8"

Wettest Month (May) 5.00"

Driest Month (Jan) 2.72"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	46.3 / 100
Social Vulnerability	26.4 / 100
Community Resilience	91.0 / 100

Hazard Breakdown

Tornado	Relatively Low
Hurricane	Very Low
Earthquake	Relatively Low
Wildfire	Very Low
Flood	Relatively Low
Hail	Relatively Low
Strong Wind	Relatively Moderate
Heat Wave	Relatively Low
Winter Weather	Relatively Moderate
Lightning	Relatively Low
Ice Storm	Relatively Low
Drought	Relatively Low
Cold Wave	Relatively Low
Landslide	Very Low

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

Earthquake History

78 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.

Apr 18, 2008	7 km NNE of Bellmont, Illinois	M5.2	28 km	14 km
Apr 18, 2008	9 km NNE of Bellmont, Illinois	M4.7	29 km	15 km
Jun 18, 2002	6 km SW of Parkers Settlement, Indiana	M4.6	27 km	16 km
Feb 5, 1994	2 km WNW of Dongola, Illinois	M4.2	146 km	16 km
Apr 21, 2008	7 km NNE of Bellmont, Illinois	M4.0	27 km	18 km
Dec 7, 2000	7 km W of Evansville, Indiana	M3.9	36 km	5 km
Jan 24, 1990	6 km WNW of Alton, Indiana	M3.9	125 km	10 km
Nov 11, 1991	3 km W of Flat Rock, Illinois	M3.8	80 km	0 km
Sep 19, 2017	4 km N of Bellmont, Illinois	M3.8	24 km	12 km
Jan 27, 1990	6 km N of Alton, Indiana	M3.8	130 km	5 km
Apr 25, 2008	8 km NNE of Bellmont, Illinois	M3.7	28 km	13 km
Nov 20, 2012	7 km N of Bellmont, Illinois	M3.6	28 km	19 km
Jan 2, 2006	3 km NNE of Eldorado, Illinois	M3.6	60 km	7 km
May 1, 2016	5 km SE of New Grand Chain, Illinois	M3.5	145 km	16 km
Jun 5, 2008	8 km WNW of Mount Carmel, Illinois	M3.4	28 km	16 km
Mar 2, 1990	9 km NW of Vernon, Illinois	M3.4	131 km	0 km
May 30, 2015	4 km ENE of Geff, Illinois	M3.4	48 km	26 km
May 1, 2008	8 km NNE of Bellmont, Illinois	M3.3	28 km	14 km
May 13, 2025	7 km SSW of Lerna, Illinois	M3.3	133 km	10 km
Oct 24, 1990	5 km ENE of Woodlawn, Illinois	M3.2	94 km	1 km

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

Tornado History

505 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 56 fatalities, 813 injuries.

Date	Rating	Distance	Path	Fatalities
Feb 29, 2012	EF4	86 km	26.1 mi	8
Jun 2, 1990	EF4	63 km	23.0 mi	0
Jun 2, 1990	EF4	49 km	106.0 mi	1
Jun 2, 1990	EF4	48 km	13.0 mi	6
Jun 2, 1990	EF4	89 km	12.5 mi	0
Jan 7, 1989	EF4	33 km	19.0 mi	0
Jul 9, 2024	EF3	31 km	5.8 mi	0
Mar 31, 2023	EF3	79 km	40.9 mi	6
Feb 28, 2017	EF3	19 km	44.1 mi	1
Nov 17, 2013	EF3	56 km	14.1 mi	0
Mar 28, 2009	EF3	63 km	12.4 mi	0
Oct 18, 2007	EF3	81 km	7.0 mi	0
Nov 15, 2005	EF3	86 km	12.0 mi	0
Nov 6, 2005	EF3	88 km	11.2 mi	0
Nov 6, 2005	EF3	43 km	41.3 mi	24
Apr 28, 2002	EF3	92 km	22.0 mi	0
Apr 21, 2002	EF3	73 km	31.5 mi	1
Jan 3, 2000	EF3	84 km	7.0 mi	0
Apr 19, 1996	EF3	73 km	17.0 mi	0
Jun 2, 1990	EF3	90 km	7.0 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: GAP VIEW RX (1,575 acres, 2021).

Year	Name	Acres Burned	Distance
2021	GAP VIEW RX	1,575	89 km
2022	DENNISON HOLLOW RX	1,573	76 km
2021	UNNAMED	1,510	99 km
2022	ONE HORSE GAP RX	1,502	90 km
2014	UNNAMED	1,493	73 km
2015	UNNAMED	1,447	77 km
2016	UNNAMED	1,299	90 km
2014	UNNAMED	1,216	90 km
2013	UNNAMED	1,203	90 km
2015	UNNAMED	1,008	90 km
2024	CAVE HILL RX	999	72 km
2017	UNNAMED	994	77 km
2021	ONE HORSE GAP RX	865	90 km
2019	HARRIS BRANCH RX	716	79 km
2010	ONE HORSE GAP	687	89 km
2013	UNNAMED	651	97 km
2021	UNNAMED	629	84 km
2024	WAR BLUFF RX	607	97 km
2022	HARTS CREEK RX	599	85 km
2024	GIBBONS CREEK RX	579	84 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	32°F (0°C)	2.7 in	Coldest, Driest
February	35°F (2°C)	2.9 in
March	45°F (7°C)	4.5 in
April	56°F (13°C)	4.5 in
May	65°F (19°C)	5.0 in	Wettest
June	74°F (23°C)	4.0 in
July	78°F (26°C)	3.9 in	Warmest
August	76°F (24°C)	3.4 in
September	69°F (21°C)	2.9 in
October	58°F (14°C)	3.2 in
November	46°F (8°C)	4.1 in
December	36°F (2°C)	3.6 in

Griffin has a seasonal temperature swing of 46°F / from 32°F in January to 78°F in July. Total annual precipitation is 44.6 inches, with May being the wettest month (5.0") and January the driest (2.7").

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