March weather forecastBarnum, IA
March
Weather in March
March, the first month of the spring in Barnum, is a frosty month, with an average temperature varying between 44.2°F (6.8°C) and 30.6°F (-0.8°C).Temperature
As Barnum welcomes March, there is a noticeable shift in the average high-temperature, escalating from February's subzero cold 28.8°F (-1.8°C) to a frosty 44.2°F (6.8°C). Barnum sees an average low-temperature of 30.6°F (-0.8°C) during March.Humidity
The average relative humidity in March in Barnum, Iowa, is 76%.Rainfall
In Barnum, during March, the rain falls for 6.7 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, there are 84.6 rainfall days, and 7.91" (201mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Barnum, in March, during 4 snowfall days, 0.47" (12mm) of snow is typically accumulated. Throughout the year, there are 29.4 snowfall days, and 3.62" (92mm) of snow is accumulated.Daylight
In Barnum, the average length of the day in March is 11h and 58min.On the first day of March in Barnum, sunrise is at 6:51 am and sunset at 6:07 pm CST. On the last day of the month, sunrise is at 6:59 am and sunset at 7:42 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 March, the average sunshine is 5.8h.UV index
In Barnum, the average daily maximum UV index in March is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 3 during March leads to these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Barnum, IA
- Average high temperature in March: 44.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in March: 30.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in March
Barnum, IA
- Average pressure in March: 30.07"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
Barnum, IA
- Average wind speed in March: 10.6mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in March
Barnum, IA
- Average humidity in March: 76%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in March
Barnum, IA
- Average rainfall in March: 0.35"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in March
Barnum, IA
- Average rainfall days in March: 6.7 days
The month with the highest number of rainy days is June (12 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in March
Barnum, IA
- Average snowfall in March: 0.47"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Barnum, IA
- Average snowfall days in March: 4 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Barnum, IA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in March: 5h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in March
Barnum, IA
- Average sunshine days in March: 21.6 days
The month with the most sunshine days is December (24.3 days).
The month with the least sunshine days is June (15.5 days).
Average UV index in March
Barnum, IA
- Average UV index in March: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in March
Barnum, IA
- Average cloud cover in March: 52
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in March
Barnum, IA
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





