December weather forecastPleasantville, IA
December
Weather in December
The first month of the winter, December, is still a cold month in Pleasantville, Iowa, with an average temperature fluctuating between 22.8°F (-5.1°C) and 34.3°F (1.3°C).Temperature
Pleasantville's December weather features a mild decline in high-temperatures, reducing from a frosty 47.1°F (8.4°C) in November to an icy 34.3°F (1.3°C). The average temperature during December nights is registered at a freezing cold 22.8°F (-5.1°C).Humidity
The average relative humidity in December is 79%.Rainfall
January and December are months with the least rain in Pleasantville when the rain falls for 4.5 days and typically aggregates up to 0.39" (10mm) of rain.Snowfall
Months with snowfall in Pleasantville are January through April, October through December. In Pleasantville, in December, snow falls for 5.1 days, with typically accumulated 0.55" (14mm) of snow. Throughout the year, in Pleasantville, there are 28.4 snowfall days, and 5.71" (145mm) of snow is accumulated.Daylight
December has the shortest days of the year in Pleasantville, with an average of 9h and 12min of daylight.On the first day of December in Pleasantville, sunrise is at 7:20 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:53 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
In Pleasantville, Iowa, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Pleasantville, IA
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in December
Pleasantville, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Pleasantville, IA
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in December
Pleasantville, IA
- Average humidity in December: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Pleasantville, IA
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and December (0.39").
Average rainfall days in December
Pleasantville, IA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Pleasantville, IA
- Average snowfall in December: 0.55"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Pleasantville, IA
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Pleasantville, IA
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Pleasantville, IA
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is December (22.7 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Pleasantville, IA
- Average UV index in December: 2
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 December
Pleasantville, IA
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in December
Pleasantville, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
