December weather forecastMontrose, IA
December
Weather in December
The first month of the winter, December, is also a wintry month in Montrose, Iowa, with temperature in the range of an average high of 37.4°F (3°C) and an average low of 25.7°F (-3.5°C).Temperature
Montrose's progression into December includes a drop in the average high-temperature, from a chilly 49.3°F (9.6°C) in November to a wintry 37.4°F (3°C). In December, the temperature drops to an average of 25.7°F (-3.5°C) at night.Humidity
In December, the average relative humidity is 78%.Rainfall
In Montrose, in December, during 7.1 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Montrose, during the entire year, the rain falls for 147.8 days and collects up to 30.98" (787mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Montrose, during December, snow falls for 6.2 days and regularly aggregates up to 2.17" (55mm) of snow. In Montrose, during the entire year, snow falls for 33.7 days and aggregates up to 14.88" (378mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:10 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:49 pm CST.
Sunshine
In Montrose, the average sunshine in December is 4.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Montrose, IA
- Average high temperature in December: 37.4°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Montrose, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Montrose, IA
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in December
Montrose, IA
- Average humidity in December: 78%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Montrose, IA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in December
Montrose, IA
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in December
Montrose, IA
- Average snowfall in December: 2.17"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Montrose, IA
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Montrose, IA
- Average daylight in December: 9h and 18min
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 42min
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 12min).
Average sunshine days in December
Montrose, IA
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is December (17.8 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Montrose, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Montrose, 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 30).
Average visibility in December
Montrose, 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).
