April weather forecastThompson, IA
April
Weather in April
April in Thompson, Iowa, is a cool spring month, with temperature in the range of an average low of 39.6°F (4.2°C) and an average high of 54.9°F (12.7°C).Temperature
The arrival of April signals an increase in the average high-temperature, moving from a wintry 41.5°F (5.3°C) in March to a cool 54.9°F (12.7°C). Throughout April, an average low-temperature of 39.6°F (4.2°C) is expected in Thompson.Humidity
In Thompson, the average relative humidity in April is 71%.Rainfall
In April, in Thompson, Iowa, the rain falls for 14.7 days. Throughout April, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 136.2 rainfall days, and 25.39" (645mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Thompson, Iowa, during April, snow falls for 3.2 days and regularly aggregates up to 2.09" (53mm) of snow. In Thompson, during the entire year, snow falls for 55.1 days and aggregates up to 22.05" (560mm) of snow.Daylight
In April, the average length of the day in Thompson, Iowa, is 13h and 27min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:42 pm. On the last day of April, in Thompson, sunrise is at 6:08 am and sunset at 8:16 pm CDT.
Sunshine
In Thompson, Iowa, the average sunshine in April is 7.6h.UV index
The average daily maximum UV index in April in Thompson, Iowa, is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 3 during April leads to these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Thompson, IA
- Average high temperature in April: 54.9°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in April: 39.6°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
Thompson, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Thompson, IA
- Average wind speed in April: 10.9mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in April
Thompson, IA
- Average humidity in April: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
Thompson, IA
- Average rainfall in April: 2.72"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in April
Thompson, IA
- Average rainfall days in April: 14.7 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3 days).
Average snowfall in April
Thompson, IA
- Average snowfall in April: 2.09"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Thompson, IA
- Average snowfall days in April: 3.2 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Thompson, IA
- Average daylight in April: 13h and 24min
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 36min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Thompson, IA
- Average sunshine days in April: 12.2 days
The months with the most sunshine days are October and November (17.4 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in April
Thompson, 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 December (UV index 1).
Average cloud cover in April
Thompson, IA
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Thompson, IA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
