December weather forecastNorthwood, IA
December
Weather in December
December ushers in the classic winter season in Northwood, Iowa, with temperatures dropping further, increased snowfall and high relative humidity. The complete transition of weather from November is conspicuous as the month sees the first solid snow accumulation of the season, recording 3.66" (93mm). The trend continues towards even colder temperatures and heightened snowfall as January approaches. December weather in Northwood is synonymous with a white Christmas, frequent snowfall, and quintessentially winter ambiance.Temperature
Observing a mild shift, the average high-temperature in Northwood during December reduces from November's icy 41.4°F (5.2°C) to a subzero cold 27.3°F (-2.6°C). Northwood throughout December, records an average low-temperature of 16.5°F (-8.6°C).Humidity
In December, the average relative humidity in Northwood, Iowa, is 87%.Rainfall
In Northwood, during December, the rain falls for 5.5 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Northwood, Iowa, during the entire year, the rain falls for 134.3 days and collects up to 25.08" (637mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Northwood. In Northwood, in December, snow falls for 12.6 days, with typically accumulated 3.66" (93mm) of snow. In Northwood, Iowa, during the entire year, snow falls for 57 days and aggregates up to 22.83" (580mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Northwood.On the first day of the month, sunrise is at 7:26 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:46 pm CST.
Sunshine
In Northwood, the average sunshine in December is 3.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Northwood, IA
- Average high temperature in December: 27.3°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in December: 16.5°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°F).
Average pressure in December
Northwood, IA
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Northwood, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.4mph).
Average humidity in December
Northwood, IA
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (72%).
Average rainfall in December
Northwood, IA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Northwood, IA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in December
Northwood, IA
- Average snowfall in December: 3.66"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Northwood, IA
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Northwood, IA
- Average daylight in December: 9h and 0min
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 December: 3h and 54min
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 24min).
Average sunshine days in December
Northwood, IA
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in December
Northwood, IA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Northwood, IA
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Northwood, IA
- Average visibility in December: 5mi
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).
