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
Numa's progression into December involves a drop in the average high-temperature, receding from a frosty 48.4°F (9.1°C) in November to a wintry 35.8°F (2.1°C). Numa records a mean low-temperature of 23.9°F (-4.5°C) in December.Humidity
In Numa, the average relative humidity in December is 79%.Rainfall
In Numa, during December, the rain falls for 7 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, in Numa, Iowa, there are 143.2 rainfall days, and 27.48" (698mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Numa, in December, snow falls for 7.2 days, with typically accumulated 1.57" (40mm) of snow. In Numa, during the entire year, snow falls for 33.2 days and aggregates up to 15.31" (389mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:35 am and sunset at 4:54 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
In Numa, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Numa in December?
What is the average humidity in December?
How much does it rain in Numa in December?
How many days does it snow in December?
What is the month with the shortest days in Numa?
What is the average length of the day in December?
When is the sunrise / sunset in December in Numa?
How long on average sun shines in December?
What is the UV index intensity in December?
Average temperature in December
Numa, IA
- Average high temperature in December: 35.8°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 (30.6°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in December
Numa, 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
Numa, IA
- Average wind speed in December: 10.1mph
The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Numa, IA
- Average humidity in December: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Numa, IA
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Numa, IA
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).
Average snowfall in December
Numa, IA
- Average snowfall in December: 1.57"
The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Numa, IA
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Numa, IA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Numa, IA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).
Average UV index in December
Numa, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Numa, IA
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in December
Numa, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Numa, Iowa, USA
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