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 corresponds with a reduction in the average high-temperature, down from November's chilly 47.3°F (8.5°C) to a cold 36.3°F (2.4°C). An average minimum temperature of 26.6°F (-3°C) is recorded in Walnut during the month of December.Humidity
In December, the average relative humidity is 82%.Rainfall
The months with the least rainfall are February and December Rain falls for 6.8 days and accumulates 0.79" (20mm) of rain.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 5.8 days. Throughout December, 0.83" (21mm) of snow is accumulated. Throughout the year, in Walnut, there are 29.3 snowfall days, and 6.46" (164mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:51 am and sunset at 5:16 pm. On the last day of December, in Walnut, sunrise is at 8:10 am and sunset at 5:26 pm EST.
Sunshine
In Walnut, Indiana, the average sunshine in December is 3.8h.UV index
The month with the lowest UV index in Walnut is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Walnut?
What is the average humidity in December in Walnut?
What is the driest month in Walnut?
How many days does it rain in December in Walnut?
How much does it snow in Walnut in December?
What is the month with the shortest days in Walnut?
What is the average length of the day in December in Walnut?
What time are sunrise and sunset in December in Walnut?
How long on average sun shines in December in Walnut?
When is the lowest UV index in Walnut?
What is the UV index intensity in December in Walnut?
Average temperature in December
Walnut, IN
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Walnut, IN
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Walnut, 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 (6.2mph).
Average humidity in December
Walnut, IN
- Average humidity in December: 82%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Walnut, IN
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are February and December (0.79").
Average rainfall days in December
Walnut, IN
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in December
Walnut, IN
- Average snowfall in December: 0.83"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Walnut, IN
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Walnut, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 5min
The months with the most sunshine are June and July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Walnut, IN
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in December
Walnut, IN
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Walnut, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Walnut, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
Walnut, Indiana, USA
Weather forecast for your location
2. Allow the app to use your location