Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average snowfall in March
- Average snowfall days in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
The start of March signals an increase in the average high-temperature, moving from a wintry 33.3°F (0.7°C) in February to a chilly 47.1°F (8.4°C). During March, Letts's temperature averages to a cold 32.5°F (0.3°C) at night.Humidity
In March, the average relative humidity is 75%.Rainfall
In Letts, in March, it is raining for 13.8 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 153.8 rainfall days, and 31.69" (805mm) of precipitation is accumulated.Snowfall
Months with snowfall in Letts are January through April, October through December. In Letts, Iowa, in March, snow falls for 5.5 days, with typically accumulated 1.93" (49mm) of snow. In Letts, during the entire year, snow falls for 40.1 days and aggregates up to 16.38" (416mm) of snow.Daylight
In Letts, the average length of the day in March is 11h and 58min.On the first day of the month, sunrise is at 6:37 am and sunset at 5:56 pm CST. On the last day of March, in Letts, sunrise is at 6:48 am and sunset at 7:29 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 6.6h.UV index
The average daily maximum UV index in March in Letts is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 3 in March suggests the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What are the temperatures in Letts in March?
What is the average humidity in March in Letts?
How many days does it rain in March in Letts?
How much does it snow in Letts in March?
What is the average length of the day in March in Letts?
When are sunrise and sunset in March in Letts?
When does Daylight Saving Time (DST) start in March in Letts?
How long on average sun shines in March in Letts?
What is the UV index intensity in March in Letts?
Average temperature in March
Letts, IA
- Average high temperature in March: 47.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in March: 32.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in March
Letts, IA
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in March
Letts, IA
- Average wind speed in March: 10.4mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in March
Letts, 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
Letts, IA
- Average rainfall in March: 2.17"
The wettest month (with the highest rainfall) is May (5").
The driest months (with the least rainfall) are February and December (1.46").
Average rainfall days in March
Letts, IA
- Average rainfall days in March: 13.8 days
The month with the highest number of rainy days is May (19.7 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in March
Letts, IA
- Average snowfall in March: 1.93"
The month with the highest snowfall is January (4.92").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Letts, IA
- Average snowfall days in March: 5.5 days
The month with the highest number of snowfall days is January (12.2 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
Letts, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in March
Letts, IA
- Average sunshine days in March: 13.2 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in March
Letts, IA
- Average UV index in March: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in March
Letts, IA
- Average cloud cover in March: 48
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in March
Letts, 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).
Letts, Iowa, USA
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