Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Runnells's progression into December involves a drop in the average high-temperature, receding from a frosty 47.3°F (8.5°C) in November to a cold 34.7°F (1.5°C). During the month of December, an average low-temperature of 22.8°F (-5.1°C) is recorded in Runnells.Humidity
The average relative humidity in December is 78%.Rainfall
In December, the rain falls for 5.4 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 124.7 rainfall days, and 26.34" (669mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Runnells, in December, during 7 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, there are 35.2 snowfall days, and 13.31" (338mm) of snow is accumulated.Daylight
The month with the shortest days in Runnells is December, with an average of 9h and 12min of daylight.On the first day of December in Runnells, sunrise is at 7:21 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 4.6h.UV index
The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Runnells?
What is the average humidity in December in Runnells?
How many days does it rain in December in Runnells?
How much does it snow in Runnells in December?
What is the month with the shortest days in Runnells?
What is the average length of the day in December in Runnells?
When are sunrise and sunset in December in Runnells?
How long on average sun shines in December in Runnells?
What is the UV index reading in December in Runnells?
Average temperature in December
Runnells, IA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (83.1°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 (14.9°F).
Average pressure in December
Runnells, 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
Runnells, IA
- Average wind speed in December: 9.8mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in December
Runnells, IA
- Average humidity in December: 78%
The months with the highest relative humidity are January, February and June (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Runnells, IA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in December
Runnells, IA
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Runnells, IA
- Average snowfall in December: 1.42"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Runnells, IA
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Runnells, IA
- Average daylight in December: 9h and 1min
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 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 6min).
Average sunshine days in December
Runnells, IA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in December
Runnells, 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
Runnells, IA
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in December
Runnells, IA
- Average visibility in December: 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).
Runnells, Iowa, USA
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