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
In Monmouth, the average high-temperature in December decreases from a chilly 45°F (7.2°C) in November to an icy 32.7°F (0.4°C). December nights in Monmouth, Iowa, cool down to an average low-temperature of 22.3°F (-5.4°C).Humidity
In Monmouth, the average relative humidity in December is 82%.Rainfall
In Monmouth, Iowa, during December, the rain falls for 6.9 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Monmouth, during the entire year, the rain falls for 143.3 days and collects up to 29.76" (756mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 8.3 days. Throughout December, 2.6" (66mm) of snow is accumulated. Throughout the year, in Monmouth, there are 40.2 snowfall days, and 17.48" (444mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:42 pm CST.
Sunshine
In Monmouth, the average sunshine in December is 4.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the UV index of 1 transforms into the following advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
How cold is it in Monmouth in December?
What is the average humidity in December in Monmouth?
How much does it rain in Monmouth in December?
How many days does it snow in December in Monmouth?
What is the month with the shortest days in Monmouth?
How many hours of daylight does Monmouth have in December?
When are sunrise and sunset in December in Monmouth?
How many hours of sunshine does Monmouth have in December?
What are the months with the lowest UV index in Monmouth?
What is the UV index intensity in December in Monmouth?
Average temperature in December
Monmouth, IA
- Average high temperature in December: 32.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in December: 22.3°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Monmouth, IA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Monmouth, IA
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Monmouth, IA
- Average humidity in December: 82%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Monmouth, IA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Monmouth, IA
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Monmouth, IA
- Average snowfall in December: 2.6"
The month with the highest snowfall is January (5.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Monmouth, IA
- Average snowfall days in December: 8.3 days
The month with the highest number of snowfall days is January (11 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
Monmouth, 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 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in December
Monmouth, IA
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in December
Monmouth, IA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Monmouth, IA
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in December
Monmouth, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Monmouth, Iowa, USA
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