March weather forecastWestport, SD
March
Weather in March
March, the first month of the spring in Westport, is an icy month, with an average temperature fluctuating between 24.8°F (-4°C) and 39.7°F (4.3°C).Temperature
The changeover to March signals a significant increase in the average high-temperature, rising from a freezing cold 23.7°F (-4.6°C) in February to a wintry 39.7°F (4.3°C). During March, Westport records an average temperature of 24.8°F (-4°C) at night.Humidity
The average relative humidity in March is 80%.Rainfall
In March, in Westport, the rain falls for 7.1 days. Throughout March, 1.1" (28mm) of precipitation is accumulated. In Westport, during the entire year, the rain falls for 97.2 days and collects up to 18.35" (466mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In March, it is snowing for 8.7 days. Throughout March, 3.19" (81mm) of snow is accumulated. Throughout the year, there are 54.8 snowfall days, and 19.13" (486mm) of snow is accumulated.Daylight
In March, the average length of the day in Westport, South Dakota, is 11h and 57min.On the first day of March in Westport, sunrise is at 7:10 am and sunset at 6:21 pm CST. On the last day of the month, sunrise is at 7:14 am and sunset at 8:01 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.
Sunshine
In Westport, the average sunshine in March is 5.5h.UV index
In March, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during March translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Westport, SD
- Average high temperature in March: 39.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in March: 24.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in March
Westport, SD
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in March
Westport, SD
- Average wind speed in March: 9.7mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in March
Westport, SD
- Average humidity in March: 80%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).
Average rainfall in March
Westport, SD
- Average rainfall in March: 1.1"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in March
Westport, SD
- Average rainfall days in March: 7.1 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).
Average snowfall in March
Westport, SD
- Average snowfall in March: 3.19"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in March
Westport, SD
- Average snowfall days in March: 8.7 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Westport, SD
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in March: 5h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in March
Westport, SD
- Average sunshine days in March: 16.4 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).
Average UV index in March
Westport, SD
- Average UV index in March: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in March
Westport, SD
- Average cloud cover in March: 54
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in March
Westport, SD
- Average visibility in March: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





