Weather & Climate in Berlin, IL

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

Berlin experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 27°F in January while summers reach 76°F in July. The area gets 293 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 40.5 inches. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 639 feet.

Temperature

27°F Jan (-3°C) 76°F Jul (24°C)

Annual Average	52.9°F
	2% below US avg
January Average	27°F (-3°C)
July Average	76°F (24°C)
Sunny Days	293 days/yr

Geography

Elevation	639 ft (195 m)
Area	0.4 sq mi (1.0 km²)
Population Density	109/sq mi
Coordinates	39.7569°N, 89.9024°W
Timezone	America/Chicago
County	Sangamon County County
Nearest Airport	St Louis Regional (ALN) 60 miles away

Precipitation & Snow

Annual Rainfall 40.5"

6% above US avg

Wettest Month (May) 4.37"

Driest Month (Jan) 1.57"

Air Quality

AQI Median	43.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	91.7 / 100
Social Vulnerability	32.0 / 100
Community Resilience	92.2 / 100

Hazard Breakdown

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

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

Earthquake History

10 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.4.

Mar 2, 1990	9 km NW of Vernon, Illinois	M3.4	119 km	0 km
May 13, 2025	7 km SSW of Lerna, Illinois	M3.3	142 km	10 km
Jan 29, 1993	7 km WNW of Brownstown, Illinois	M3.2	110 km	5 km
Jul 1, 2017	9 km SSE of Mulberry Grove, Illinois	M3.1	116 km	17 km
Sep 5, 2004	3 km WNW of Saint Peter, Illinois	M2.9	130 km	33 km
Apr 29, 2022	1 km SSW of Peerless Park, Missouri	M2.8	146 km	8 km
Mar 28, 2024	1 km NNE of Germantown, Illinois	M2.8	136 km	24 km
May 5, 2008	3 km SSE of Fenton, Missouri	M2.8	148 km	19 km
Sep 19, 2024	1 km S of Old Monroe, Missouri	M2.6	118 km	2 km
Jan 15, 1998	1 km SSE of Fenton, Missouri	M2.5	147 km	16 km

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

Tornado History

682 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 19 fatalities, 722 injuries.

Date	Rating	Distance	Path	Fatalities
May 13, 1995	EF4	76 km	7.0 mi	0
May 5, 1977	EF4	78 km	7.3 mi	0
Mar 20, 1976	EF4	94 km	63.7 mi	0
Jun 14, 1957	EF4	17 km	4.3 mi	2
Apr 4, 2023	EF3	73 km	19.9 mi	0
Dec 1, 2018	EF3	58 km	12.5 mi	0
Apr 19, 2011	EF3	36 km	4.3 mi	0
Dec 31, 2010	EF3	26 km	3.6 mi	0
Aug 19, 2009	EF3	37 km	24.3 mi	0
May 10, 2003	EF3	82 km	17.5 mi	0
Jun 1, 1999	EF3	53 km	10.0 mi	1
Apr 19, 1996	EF3	78 km	9.4 mi	0
Apr 19, 1996	EF3	62 km	14.5 mi	0
May 13, 1995	EF3	74 km	25.0 mi	0
May 9, 1995	EF3	20 km	50.0 mi	0
May 1, 1983	EF3	60 km	4.0 mi	0
Jun 21, 1981	EF3	81 km	8.8 mi	1
Jul 26, 1978	EF3	12 km	8.9 mi	0
Aug 6, 1977	EF3	21 km	4.1 mi	0
Mar 20, 1976	EF3	42 km	8.8 mi	0

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	27°F (-3°C)	1.6 in	Coldest, Driest
February	30°F (-1°C)	1.8 in
March	42°F (5°C)	3.2 in
April	53°F (12°C)	3.7 in
May	64°F (18°C)	4.4 in	Wettest
June	72°F (22°C)	3.9 in
July	76°F (24°C)	3.7 in	Warmest
August	74°F (23°C)	3.4 in
September	67°F (19°C)	3.4 in
October	55°F (13°C)	2.7 in
November	42°F (6°C)	3.0 in
December	31°F (-1°C)	2.6 in

Berlin has a seasonal temperature swing of 49°F / from 27°F in January to 76°F in July. Total annual precipitation is 37.2 inches, with May being the wettest month (4.4") and January the driest (1.6").

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