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Weather & Climate in Lake Arrowhead, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lake Arrowhead experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 26°F in January while summers reach 77°F in July. The area gets 267 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 37.8 inches. The area receives 4.1 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 925 feet.
Temperature
26°F Jan (-3°C)
77°F Jul (25°C)
| Annual Average | 53.1°F |
| 2% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 267 days/yr |
Geography
| Elevation | 925 ft (282 m) |
| Area | 1.3 sq mi (3.3 km²) |
| Population Density | 96/sq mi |
| Coordinates | 39.4833°N, 94.3131°W |
| Timezone | America/Chicago |
| Nearest Airport | Kansas City International (MCI) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.3.
| May 18, 2005 | Missouri | M3.3 | 118 km | 5 km |
| Mar 23, 2007 | 5 km N of Nortonville, Kansas | M3.1 | 88 km | 5 km |
| Feb 11, 1995 | 6 km E of Clearmont, Missouri | M3.1 | 126 km | 5 km |
| May 13, 1999 | 6 km WSW of Kansas City, Kansas | M3.0 | 54 km | 5 km |
| Mar 31, 1993 | 2 km SE of Nemaha, Nebraska | M2.9 | 148 km | 5 km |
| Apr 4, 2015 | 3 km ESE of Clinton, Missouri | M2.6 | 134 km | 2 km |
| Jul 15, 2025 | 3 km W of Hale, Missouri | M2.5 | 81 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
528 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 13 fatalities, 291 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 29, 2004 | EF4 | 44 km | 22.0 mi | 3 |
| May 4, 2003 | EF4 | 64 km | 21.0 mi | 2 |
| May 4, 2003 | EF4 | 32 km | 5.0 mi | 0 |
| May 4, 1977 | EF4 | 33 km | 48.6 mi | 0 |
| May 4, 1977 | EF4 | 29 km | 12.0 mi | 0 |
| Apr 23, 1975 | EF4 | 38 km | 11.4 mi | 1 |
| Jun 8, 1966 | EF4 | 82 km | 19.9 mi | 1 |
| May 7, 1961 | EF4 | 64 km | 26.2 mi | 0 |
| May 22, 1952 | EF4 | 96 km | 26.9 mi | 0 |
| Mar 6, 2017 | EF3 | 59 km | 17.7 mi | 0 |
| May 2, 2008 | EF3 | 26 km | 0.9 mi | 0 |
| May 29, 2004 | EF3 | 45 km | 7.0 mi | 0 |
| Apr 11, 2001 | EF3 | 100 km | 76.5 mi | 0 |
| Apr 26, 1984 | EF3 | 96 km | 32.0 mi | 0 |
| May 4, 1977 | EF3 | 64 km | 26.2 mi | 1 |
| Apr 23, 1975 | EF3 | 87 km | 14.0 mi | 0 |
| Jun 26, 1969 | EF3 | 43 km | 10.1 mi | 0 |
| May 15, 1968 | EF3 | 99 km | 2.7 mi | 0 |
| Apr 21, 1967 | EF3 | 47 km | 14.6 mi | 0 |
| Jan 24, 1967 | EF3 | 43 km | 14.5 mi | 2 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: HIGHWAY E (897 acres, 2012).
| Year | Name | Acres Burned | Distance |
| 2012 | HIGHWAY E | 897 | 39 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 1.2 in | Coldest |
| February | 32°F (-0°C) | 1.2 in | Driest |
| March | 43°F (6°C) | 2.6 in | |
| April | 54°F (12°C) | 3.5 in | |
| May | 63°F (17°C) | 4.8 in | |
| June | 72°F (22°C) | 4.5 in | |
| July | 77°F (25°C) | 4.1 in | Warmest |
| August | 76°F (24°C) | 3.8 in | |
| September | 67°F (19°C) | 4.8 in | Wettest |
| October | 56°F (13°C) | 3.4 in | |
| November | 42°F (5°C) | 2.3 in | |
| December | 31°F (-1°C) | 1.7 in |
Lake Arrowhead has a seasonal temperature swing of 52°F / from 26°F in January to 77°F in July. Total annual precipitation is 37.8 inches, with September being the wettest month (4.8") and February the driest (1.2").