March weather forecastMerrimac, IA
March
Weather in March
The first month of the spring, March, is a frosty month in Merrimac, Iowa, with an average temperature fluctuating between 48.2°F (9°C) and 33.3°F (0.7°C).Temperature
Merrimac's transition into March sees a rise in the average high-temperature, advancing from a wintry 34.3°F (1.3°C) in February to a frosty 48.2°F (9°C). Merrimac, in March, witnesses an average low-temperature of 33.3°F (0.7°C).Humidity
In Merrimac, the average relative humidity in March is 75%.Rainfall
In Merrimac, in March, during 13 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 140.1 rainfall days, and 29.92" (760mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Merrimac, in March, snow falls for 4.3 days, with typically accumulated 1.61" (41mm) of snow. In Merrimac, during the entire year, snow falls for 30.7 days and aggregates up to 15" (381mm) of snow.Daylight
The average length of the day in March is 11h and 58min.On the first day of March, sunrise is at 6:39 am and sunset at 5:58 pm CST. On the last day of the month, sunrise is at 6:50 am and sunset at 7:31 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 Merrimac, the average sunshine in March is 6.3h.UV index
The average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 3 in March translates into these instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Merrimac, IA
- Average high temperature in March: 48.2°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in March: 33.3°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in March
Merrimac, IA
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in March
Merrimac, IA
- Average wind speed in March: 10.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in March
Merrimac, IA
- Average humidity in March: 75%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in March
Merrimac, IA
- Average rainfall in March: 2.2"
The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days in March
Merrimac, IA
- Average rainfall days in March: 13 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in March
Merrimac, IA
- Average snowfall in March: 1.61"
The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Merrimac, IA
- Average snowfall days in March: 4.3 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Merrimac, IA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in March: 6h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in March
Merrimac, IA
- Average sunshine days in March: 14.3 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in March
Merrimac, IA
- Average UV index in March: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in March
Merrimac, IA
- Average cloud cover in March: 50
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in March
Merrimac, 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).
