December weather forecast
Oasis, IA

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Weather in December

December, the first month of the winter in Oasis, is also an icy month, with an average temperature varying between 23°F (-5°C) and 33.8°F (1°C).

Temperature

The arrival of December indicates a decrease in the average high-temperature, moving from a frosty 46.2°F (7.9°C) in November to an icy 33.8°F (1°C). During the month of December, an average temperature of 23°F (-5°C) is noted during the nights.

Humidity

In Oasis, the average relative humidity in December is 81%.

Rainfall

In Oasis, during December, the rain falls for 6.5 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 139.1 rainfall days, and 29.57" (751mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Oasis, Iowa, are January through April, October through December. In Oasis, Iowa, in December, during 7.3 snowfall days, 2.44" (62mm) of snow is typically accumulated. Throughout the year, in Oasis, there are 34.5 snowfall days, and 16.85" (428mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:35 pm. On the last day of December, in Oasis, sunrise is at 7:32 am and sunset at 4:45 pm CST.

Sunshine

In December, the average sunshine in Oasis is 4.5h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 1 in December transforms into this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

How cold is it in Oasis in December?

The average high-temperature, in December, in Oasis, is 33.8°F (1°C), while the average low-temperature is 23°F (-5°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 87.8°F (31°C).

What is the average humidity in December in Oasis?

In Oasis, the average relative humidity in December is 81%.

How many days does it rain in December in Oasis?

In Oasis, in December, during 6.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

How many days does it snow in December in Oasis?

In Oasis, Iowa, in December, during 7.3 snowfall days, 2.44" (62mm) of snow is typically accumulated.

What is the month with the shortest days in Oasis?

December has the shortest days of the year in Oasis, Iowa, with an average of 9h and 12min of daylight.

What is the average length of the day in December in Oasis?

In Oasis, Iowa, the average day length in December is 9h and 13min.

What time are sunrise and sunset in December in Oasis?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:35 pm. On the last day of the month, in Oasis, Iowa, sunrise is at 7:32 am and sunset at 4:45 pm CST.

How long on average sun shines in December in Oasis?

In Oasis, Iowa, the average sunshine duration in December is 4.5h.

When is the lowest UV index in Oasis?

The months with the lowest UV index in Oasis are January and December, with an average maximum UV index of 1.

How high is the UV index in December in Oasis?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Oasis, IA

Average temperature in December - Oasis, IA
  • Average high temperature in December: 33.8°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in December: 23°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

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Average pressure in December
Oasis, IA

Average pressure in December - Oasis, 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 (29.9"Hg).

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Average wind speed in December
Oasis, IA

Average wind speed in December - Oasis, IA
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in December
Oasis, IA

Average humidity in December - Oasis, IA
  • Average humidity in December: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Oasis, IA

Average rainfall in December - Oasis, IA
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.3").

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Average rainfall days in December
Oasis, IA

Average rainfall days in December - Oasis, IA
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (4.4 days).

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Average snowfall in December
Oasis, IA

Average snowfall in December - Oasis, IA
  • Average snowfall in December: 2.44"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Oasis, IA

Average snowfall days in December - Oasis, IA
  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Oasis, IA

Average daylight in December / Average sunshine in December - Oasis, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in December
Oasis, IA

Average sunshine days in December - Oasis, IA
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (9.2 days).

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Average UV index in December
Oasis, IA

Average UV index in December - Oasis, IA
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Oasis, IA

Average cloud cover in December - Oasis, IA
  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Oasis, IA

Average visibility in December - Oasis, IA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

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Oasis, Iowa, USA

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