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
Arrival of December comes with a reduction in the average high-temperature, falling from a chilly 43.2°F (6.2°C) in November to a subzero cold 29.3°F (-1.5°C). In December, the recorded average low-temperature is 18.7°F (-7.4°C).Humidity
In December, the average relative humidity is 84%.Rainfall
In Plainfield, in December, it is raining for 5 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 127.3 rainfall days, and 26.61" (676mm) of precipitation is accumulated.Snowfall
Months with snowfall in Plainfield, Iowa, are January through May, October through December. In December, it is snowing for 11.5 days. Throughout December, 3.82" (97mm) of snow is accumulated. In Plainfield, during the entire year, snow falls for 46.8 days and aggregates up to 19.76" (502mm) of snow.Daylight
The month with the shortest days in Plainfield is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:37 pm. On the last day of December, in Plainfield, sunrise is at 7:40 am and sunset at 4:46 pm CST.
Sunshine
The average sunshine in December in Plainfield, Iowa, is 4.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Plainfield in December?
What is the average humidity in December in Plainfield?
How many days does it rain in December in Plainfield?
How much does it snow in Plainfield in December?
What is the month with the shortest days in Plainfield?
How many hours of daylight does Plainfield have in December?
What time are sunrise and sunset in December in Plainfield?
How long on average sun shines in December in Plainfield?
What are the months with the lowest UV index in Plainfield?
What is the UV index intensity in December in Plainfield?
Average temperature in December
Plainfield, IA
- Average high temperature in December: 29.3°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 (23.2°F).
- Average low temperature in December: 18.7°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 (10.8°F).
Average pressure in December
Plainfield, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Plainfield, IA
- Average wind speed in December: 10mph
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 (7.1mph).
Average humidity in December
Plainfield, IA
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Plainfield, IA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Plainfield, IA
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in December
Plainfield, IA
- Average snowfall in December: 3.82"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Plainfield, IA
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Plainfield, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Plainfield, IA
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in December
Plainfield, IA
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Plainfield, IA
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Plainfield, 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).
Plainfield, Iowa, USA
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