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 Irondale, the average high-temperature in December drops from a chilly 48.6°F (9.2°C) in November to a cold 38.1°F (3.4°C). In Irondale, December nights witness a steady temperature drop to a freezing cold 27.5°F (-2.5°C).Humidity
January and December, with an average relative humidity of 83%, are the most humid months in Irondale.Rainfall
In Irondale, during December, the rain falls for 8.9 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 146.5 rainfall days, and 22.32" (567mm) of precipitation is accumulated.Snowfall
Months with snowfall in Irondale are January through April, October through December. In Irondale, in December, snow falls for 7.5 days, with typically accumulated 2.17" (55mm) of snow. In Irondale, during the entire year, snow falls for 34.2 days and aggregates up to 9.17" (233mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:46 am and sunset at 5:17 pm. On the last day of December, sunrise is at 8:04 am and sunset at 5:27 pm EST.
Sunshine
In December, the average sunshine is 4h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is December in Irondale?
What is the most humid month in Irondale?
What is the average humidity in December in Irondale?
How much does it rain in Irondale in December?
How many days does it snow in December in Irondale?
What is the month with the shortest days in Irondale?
What is the average length of the day in December in Irondale?
What time are sunrise and sunset in December in Irondale?
How many hours of sunshine does Irondale have in December?
When is the lowest UV index in Irondale?
What is the UV index reading in December in Irondale?
Average temperature in December
Irondale, IN
- Average high temperature in December: 38.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.5°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 (20.5°F).
Average pressure in December
Irondale, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Irondale, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Irondale, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Irondale, IN
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in December
Irondale, IN
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in December
Irondale, IN
- Average snowfall in December: 2.17"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Irondale, IN
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Irondale, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Irondale, IN
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
Irondale, IN
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Irondale, IN
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Irondale, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Irondale, Indiana, USA
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