Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The arrival of April sees a shift in the average high-temperature, moving from an icy 41.7°F (5.4°C) in March to a cool 55°F (12.8°C). Halfa experiences a steady low-temperature of 39.7°F (4.3°C) throughout April.Humidity
In Halfa, the average relative humidity in April is 69%.Rainfall
In Halfa, in April, it is raining for 13.8 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, in Halfa, there are 123.7 rainfall days, and 23.66" (601mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Halfa, during April, snow falls for 2.6 days and regularly aggregates up to 1.85" (47mm) of snow. Throughout the year, there are 48.8 snowfall days, and 19.76" (502mm) of snow is accumulated.Daylight
In Halfa, the average length of the day in April is 13h and 27min.On the first day of April in Halfa, sunrise is at 6:58 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:19 pm CDT.
Sunshine
The average sunshine in April is 7.8h.UV index
The average daily maximum UV index in April in Halfa is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 during April translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. 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
What is the usual temperature for Halfa in April?
What is the average humidity in April in Halfa?
How much does it rain in Halfa in April?
How many days does it snow in April in Halfa?
How many hours of daylight does Halfa have in April?
What time are sunrise and sunset in April in Halfa?
How many hours of sunshine does Halfa have in April?
How high is the UV index in April in Halfa?
Average temperature in April
Halfa, IA
- Average high temperature in April: 55°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in April: 39.7°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in April
Halfa, IA
- Average pressure in April: 29.94"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Halfa, IA
- Average wind speed in April: 11.1mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in April
Halfa, IA
- Average humidity in April: 69%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall in April
Halfa, IA
- Average rainfall in April: 2.6"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in April
Halfa, IA
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in April
Halfa, IA
- Average snowfall in April: 1.85"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Halfa, IA
- Average snowfall days in April: 2.6 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Halfa, IA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Halfa, IA
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in April
Halfa, IA
- Average UV index in April: 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 April
Halfa, IA
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in April
Halfa, IA
- Average visibility in April: 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).
Halfa, Iowa, USA
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