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
With December's onset, the average high-temperature recedes from November's frosty 45.9°F (7.7°C) to a wintry 32°F (0°C). Throughout the month of December, Westside reports a steady low-temperature average of 20.7°F (-6.3°C).Humidity
In December, the average relative humidity in Westside is 80%.Rainfall
In Westside, in December, during 4.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, there are 126.1 rainfall days, and 26.38" (670mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Westside, in December, snow falls for 9.1 days, with typically accumulated 3.07" (78mm) of snow. In Westside, during the entire year, snow falls for 41.5 days and aggregates up to 18.23" (463mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:29 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:58 pm CST.
Sunshine
In December, the average sunshine is 4.7h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Westside, Iowa. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Westside?
What is the average humidity in December in Westside?
How much does it rain in Westside in December?
How many days does it snow in December in Westside?
What is the month with the shortest days in Westside?
How many hours of daylight does Westside have in December?
What time are sunrise and sunset in December in Westside?
How long on average sun shines in December in Westside?
What is the month with the lowest UV index in Westside?
What is the UV index reading in December in Westside?
Average temperature in December
Westside, IA
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in December
Westside, IA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Westside, IA
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in December
Westside, IA
- Average humidity in December: 80%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and October (69%).
Average rainfall in December
Westside, IA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in December
Westside, IA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Westside, IA
- Average snowfall in December: 3.07"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westside, IA
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westside, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Westside, IA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Westside, 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
Westside, IA
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Westside, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Westside, Iowa, USA
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