March weather forecastCastlewood, SD
March
Weather in March
March, the first month of the spring in Castlewood, is a cold month, with temperature in the range of an average high of 38.1°F (3.4°C) and an average low of 23.7°F (-4.6°C).Temperature
March's arrival is marked by a notable elevation in high-temperatures, rising from a freezing cold 22.5°F (-5.3°C) in February to an icy 38.1°F (3.4°C). Castlewood experiences a mean temperature of 23.7°F (-4.6°C) during March nights.Humidity
In Castlewood, the average relative humidity in March is 82%.Rainfall
In Castlewood, during March, the rain falls for 7.8 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 112.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In March, it is snowing for 10 days. Throughout March, 2.2" (56mm) of snow is accumulated. Throughout the year, there are 64.3 snowfall days, and 17.56" (446mm) of snow is accumulated.Daylight
The average length of the day in March is 11h and 58min.On the first day of the month, sunrise is at 7:04 am and sunset at 6:16 pm CST. On the last day of March, sunrise is at 7:09 am and sunset at 7:55 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
The average sunshine in March is 5.4h.UV index
The average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 during March translates into the following guidance:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Castlewood, SD
- Average high temperature in March: 38.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in March: 23.7°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in March
Castlewood, SD
- Average pressure in March: 30.08"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in March
Castlewood, SD
- Average wind speed in March: 10.9mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in March
Castlewood, SD
- Average humidity in March: 82%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in March
Castlewood, SD
- Average rainfall in March: 1.02"
The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in March
Castlewood, SD
- Average rainfall days in March: 7.8 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in March
Castlewood, SD
- Average snowfall in March: 2.2"
The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in March
Castlewood, SD
- Average snowfall days in March: 10 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in March /
Average sunshine in March
Castlewood, SD
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in March: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in March
Castlewood, SD
- Average sunshine days in March: 14.2 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in March
Castlewood, SD
- Average UV index in March: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in March
Castlewood, SD
- Average cloud cover in March: 56
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in March
Castlewood, 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).
