St. Lawrence, SD Climate


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United States / South Dakota / No Metro Area / Hand County / St. Lawrence / Zip Codes
St. Lawrence town in South Dakota has a humid continental climate, with hot summers and cold winters. The average summer temperature is around 75°F (24°C), while the average winter temperature is around 25°F (-4°C). The town experiences an average of 28 inches of precipitation annually, mostly concentrated in the warmer months of May through September. During these warmer months, thunderstorms are common, bringing heavy rain and sometimes hail or snow flurries. Winters in St. Lawrence town are generally dry and cold, with occasional snowfall occurring throughout the season.

St. Lawrence, South Dakota gets 22 inches of rain, on average, per year. The US average is 38 inches of rain per year.

St. Lawrence averages 35 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 207 sunny days per year in St. Lawrence. The US average is 205 sunny days.

St. Lawrence gets some kind of precipitation, on average, 64 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.


Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 6
Rain: averages 22 inches of rain a year
Snow: averages 35 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for St. Lawrence town is 6.9 (10=best), which means it is more comfortable than most places in South Dakota.

9.2 Summer - 4.5 Winter
August, June and July are the most pleasant months in St. Lawrence town, while January and December are the least comfortable months.

  ClimateSt. Lawrence, South DakotaUnited States
  21.7 in.38.1 in.
  35.1 in.27.8 in.
  64.1 days106.2 days
  207 days205 days
  85.5°85.8°
  5.6°21.7°
  6.97
  3.64.3
  1568 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for St. Lawrence town with an average high temperature of 85.5°, which ranks it as about average compared to other places in South Dakota. In St. Lawrence town, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Lawrence town are June, September and August.
In St. Lawrence town, there are 21.1 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.
January has the coldest nighttime temperatures for St. Lawrence town with an average of 5.6°. This is about average compared to other places in South Dakota.
In St. Lawrence town, there are 170.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Dakota.
In St. Lawrence town, there are 29.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in South Dakota.
Humidity in St. Lawrence town is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in July and August. The most humid months (but still comfortable) are July, August and June.
June is the wettest month in St. Lawrence town with 3.4 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 40% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 21.7 inches in St. Lawrence town means that it is drier than most places in South Dakota.
May is the rainiest month in St. Lawrence town with 8.7 days of rain, and January is the driest month with only 3.0 rainy days. There are 64.1 rainy days annually in St. Lawrence town, which is one of the least rainy places in South Dakota. The rainiest season is Autumn when it rains 34% of the time and the driest is Spring with only a 15% chance of a rainy day.
An annual snowfall of 35.1 inches in St. Lawrence town means that it is less snowy than most places in South Dakota. February is the snowiest month in St. Lawrence town with 7.3 inches of snow, and 7 months of the year have significant snowfall.
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