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
A shift in Montour's weather is observed as November turns into December, with the average high temperature reducing from a chilly 45.1°F (7.3°C) to a cold 32.5°F (0.3°C). Montour's average low-temperature in December is measured at a subzero cold 21.4°F (-5.9°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Montour, during December, the rain falls for 5.9 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, in Montour, there are 133.1 rainfall days, and 27.76" (705mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Montour. In Montour, in December, during 8.1 snowfall days, 2.24" (57mm) of snow is typically accumulated. Throughout the year, in Montour, Iowa, there are 38.6 snowfall days, and 14.29" (363mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Montour.On the first day of December, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:49 pm CST.
Sunshine
In December, the average sunshine in Montour, Iowa, is 4.3h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 in December translates into these instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Montour in December?
What is the average humidity in December in Montour?
How many days does it rain in December in Montour?
How many days does it snow in December in Montour?
What is the month with the shortest days in Montour?
What is the average length of the day in December in Montour?
When are sunrise and sunset in December in Montour?
How many hours of sunshine does Montour have in December?
What is the month with the lowest UV index in Montour?
How high is the UV index in December in Montour?
Average temperature in December
Montour, IA
- Average high temperature in December: 32.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 21.4°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in December
Montour, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Montour, IA
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Montour, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Montour, IA
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Montour, IA
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in December
Montour, IA
- Average snowfall in December: 2.24"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Montour, IA
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Montour, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 2min
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 54min).
Average sunshine days in December
Montour, IA
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Montour, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Montour, IA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in December
Montour, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Montour, Iowa, USA
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