March weather forecastDuncan, OK
March
Weather in March
Come March, the weather is hinting at the shift from winter to spring. With an average high nudging up to 64.9°F (18.3°C), people start to shed their heavy winter coats. The amount of sunshine also increases, contributing to longer days, a factor that excites outdoor enthusiasts. Rainfall becomes more frequent at 1.85" (47mm), and snowfall occurrences taper off to around 0.28" (7mm). The wind picks up a notch, averaging 11.5mph (18.5km/h), providing a refreshing breeze on those warmer days.Temperature
March comes with an increase, with the average high-temperature moving from a cool 54.3°F (12.4°C) in February to a comfortable 64.9°F (18.3°C). During March, the temperature in Duncan is averaged to a low of 46.4°F (8°C) at night.Humidity
The average relative humidity in March is 64%.Rainfall
In Duncan, Oklahoma, during March, the rain falls for 10.3 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 113.4 rainfall days, and 24.61" (625mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Duncan, in March, snow falls for 0.5 days, with typically accumulated 0.28" (7mm) of snow. Throughout the year, in Duncan, there are 5.1 snowfall days, and 3.03" (77mm) of snow is accumulated.Daylight
In Duncan, Oklahoma, the average length of the day in March is 12h and 0min.On the first day of the month, sunrise is at 6:59 am and sunset at 6:28 pm CST. On the last day of March, sunrise is at 7:19 am and sunset at 7:52 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 Duncan, Oklahoma, the average sunshine in March is 7.5h.UV index
In March, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 5 during March translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Duncan, OK
- Average high temperature in March: 64.9°F
The warmest month (with the highest average high temperature) is August (95°F).
The months with the lowest average high temperature are January and December (51.3°F).
- Average low temperature in March: 46.4°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in March
Duncan, OK
- Average pressure in March: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in March
Duncan, OK
- Average wind speed in March: 11.5mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July, August and September (8.3mph).
Average humidity in March
Duncan, OK
- Average humidity in March: 64%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).
Average rainfall in March
Duncan, OK
- Average rainfall in March: 1.85"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in March
Duncan, OK
- Average rainfall days in March: 10.3 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (5 days).
Average snowfall in March
Duncan, OK
- Average snowfall in March: 0.28"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Duncan, OK
- Average snowfall days in March: 0.5 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
Duncan, OK
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in March: 7h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in March
Duncan, OK
- Average sunshine days in March: 18.5 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (15.7 days).
Average UV index in March
Duncan, OK
- Average UV index in March: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in March
Duncan, OK
- Average cloud cover in March: 36
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in March
Duncan, OK
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





