Missouri experiences a varied climate, making its snowfall patterns quite interesting. Annual snowfall totals in Missouri range from 8 to 24 inches, depending on the region.
For instance, northern Missouri typically receives more snow, averaging 18 to 24 inches each year, while southern parts see significantly less, around 8 to 12 inches.
The snowfall does not often stay on the ground for long periods. Snow usually melts within a week or two, even in the coldest parts of the state. This means that while snow is a common sight during winter, it doesn’t usually lead to prolonged disruptions.
Historical Weather Patterns and Snowfall in Missouri
Missouri experiences a range of snowfall patterns influenced by its geographical location and climate. Various regions in the state, such as Kansas City and St. Louis, have different snowfall averages, and historical weather events have shaped the overall climate.
Average Snowfall by Month
The average snowfall in Missouri varies significantly by month. January typically sees the highest snowfall, especially in northern regions, with totals ranging from 3 to 8 inches.
In contrast, February also witnesses substantial snow, often around 2 to 5 inches. The climate of Missouri shows that December has moderate snowfall, averaging 2 to 4 inches.
In southern areas, snow is less common, and January’s figures are generally lower.
St. Louis and Kansas City reflect these statewide patterns, with marked differences between months.
Notable Snowstorms and Events
Some of the most significant snowstorms in Missouri history have had lasting impacts. For example, February 20, 1912, in Pulaski County, saw 22 inches of snowfall in a single day.
Another notable event was on February 2, 2011, when Cooper County received 22.5 inches.
Other impressive snowfalls include March 14, 1999 in Newton County and March 15, 1999 in Barry County, each recording substantial snow. These events highlight the erratic nature of Missouri’s winter storms.
Changes in Snowfall Patterns Over Time
The snowfall patterns in Missouri have evolved over the years. Data suggests that northern counties, which used to average 18 to 24 inches of snowfall, now see slight changes due to shifting climatic conditions.
The first snowfall usually occurs in late November, with the last snowfall appearing around early March.
Temperature variations have also contributed to changes. Urban areas like St. Louis have seen warmer temperatures due to increased atmospheric particulates, affecting local snowfall.
Additionally, historical data indicates a general trend toward shorter periods of snow cover, reflecting broader climatic changes.
Geographic and Climate Factors Affecting Snow in Missouri
Missouri’s snowfall patterns are shaped by its geographic location, topography, and varied climate zones. Different regions of the state experience varying levels of snowfall due to these factors.
Influence of Missouri’s Location and Topography
Missouri is influenced by its inland location and proximity to both the Mississippi and Missouri rivers. The state borders Iowa to the north and Arkansas to the south, which creates a range of weather patterns.
The northern counties, like those near the Missouri River, typically see higher snowfall, averaging 18 to 24 inches annually. In contrast, southern counties average only 8 to 12 inches.
The state’s topography, ranging from flat plains in the north to rolling hills in the south, also affects snowfall distribution. Areas near Kansas experience different patterns compared to regions farther east due to their varied climates.
The Role of Climate Classifications in Snowfall
Missouri’s climate varies between a humid continental climate (Dfa) in the north and a humid subtropical climate (Cfa) in the south, according to the Köppen climate classification. This distinction plays a crucial role in snowfall amounts.
The northern parts, categorized under humid continental climate, experience colder winters with more intense snowfall. In contrast, the southern regions under a humid subtropical climate have milder winters and thus, receive less snow. This variation in climate across the state’s expanse impacts the amount of snow accumulation residents can expect each winter.
Comparative Analysis of Missouri Regions
Comparing snowfall across Missouri, it becomes clear that the north generally gets more snow than the south.
For example, northern cities like Kansas City can experience significant winter precipitation with an average snowfall of 20 inches.
Meanwhile, areas like Columbia, closer to central Missouri, have moderate snowfall, and the southernmost regions receive the least snow.
These trends illustrate the influence of geographic and climatic factors on snowfall patterns throughout the state.
The intensity and frequency of snow events tend to increase in northern regions, whereas southern Missouri enjoys milder temperatures and fewer snow days, reflecting the broader climatic divisions within the state.