Lyman County, SD Weather


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United States / South Dakota / No Metro Area / Lyman County / Cities / Zip Codes

The most pleasant months of the year for Lyman County are September, June and May. In Lyman County, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Lyman County with an average high temperature of 88.1°, which ranks it as warmer than most places in South Dakota. March is the snowiest month in Lyman County with 8.3 inches of snow, and 7 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - Lyman, SD

6 AM PST

Sunny

63°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodaySunny86° / 63°NW 8 mph
WednesdaySunny94° / 59°WSW 7 to 12 mph
ThursdaySlight Chance Showers And Thunderstorms then Sunny82° / 54°N 9 to 13 mph
FridayChance Showers And Thunderstorms81° / 61°SE 6 to 20 mph
SaturdayChance Showers And Thunderstorms84° / 61°SSW 15 mph
SundaySlight Chance Showers And Thunderstorms86° / 59°WNW 7 to 14 mph
MondayChance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms80° / 57°NNE 14 to 17 mph

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 9
Rain: averages 21 inches of rain a year
Snow: averages 38 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Lyman County area is 8.9 (10=best), which means it is more comfortable than most places in South Dakota.

8.9 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January31°
February36° 13°
March46° 22°
April60° 33°
May71° 45°
June80° 55°
July88° 61°
August87° 59°
September77° 49°
October62° 36°
November45° 22°
December32° 11°
Hot, Freezing, Rainy, Snowy Days: Lyman
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03043
February02743
March02663
April01381
May12100
June40100
July13090
August11070
September4160
October01060
November02553
December03144

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.

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