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
The arrival of December is marked by a minor reduction in average high-temperature, sliding from an enjoyable 63.3°F (17.4°C) in November to a fresh 54.9°F (12.7°C). During December, the nighttime temperature averages to a cold 41.9°F (5.5°C).Humidity
February, March and December, with an average relative humidity of 79%, are the most humid months in Isola.Rainfall
In Isola, in December, during 12.5 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Isola, Mississippi, during the entire year, the rain falls for 161.2 days and collects up to 39.09" (993mm) of precipitation.Snowfall
April through October and December are months without snowfall in Isola.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:48 am and sunset at 4:54 pm. On the last day of December, in Isola, Mississippi, sunrise is at 7:05 am and sunset at 5:05 pm CST.
Sunshine
In Isola, the average sunshine in December is 5h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Isola?
What is the most humid month in Isola?
What is the average humidity in December in Isola?
How much does it rain in Isola in December?
When it does not snow in Isola?
Does it snow in Isola in December?
What is the month with the shortest days in Isola?
How many hours of daylight does Isola have in December?
When are sunrise and sunset in December in Isola?
How long on average sun shines in December in Isola?
What is the month with the lowest UV index in Isola?
How high is the UV index in December in Isola?
Average temperature in December
Isola, MS
- Average high temperature in December: 54.9°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 41.9°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in December
Isola, MS
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Isola, MS
- Average wind speed in December: 8.4mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Isola, MS
- Average humidity in December: 79%
The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Isola, MS
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is April (4.21").
The driest months (with the least rainfall) are September and November (2.2").
Average rainfall days in December
Isola, MS
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is October (8.7 days).
Average snowfall in December
Isola, MS
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Isola, MS
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Isola, MS
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Isola, MS
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is October (21.1 days).
The months with the least sunshine days are July and August (11.3 days).
Average UV index in December
Isola, MS
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Isola, MS
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
Isola, MS
- 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).
Isola, Mississippi, USA
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