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 commencement of December in Westfield indicates a shift in the average high-temperature, receding from November's frosty 48.9°F (9.4°C) to an icy 37.9°F (3.3°C). During December nights, Westfield witnesses a consistent average temperature of 27.5°F (-2.5°C).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 83%.Rainfall
In Westfield, during December, the rain falls for 6.9 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, in Westfield, there are 128.2 rainfall days, and 14.61" (371mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 5.9 days and accumulates 1.38" (35mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:47 am and sunset at 5:19 pm. On the last day of December, sunrise is at 8:06 am and sunset at 5:29 pm EST.
Sunshine
The average sunshine in December in Westfield is 4.1h.UV index
The month with the lowest UV index in Westfield, Indiana, is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold does it get in Westfield in December?
What is the most humid month in Westfield?
What is the average humidity in December in Westfield?
How much does it rain in Westfield in December?
What is the snowiest month in Westfield?
How many days does it snow in December in Westfield?
What is the month with the shortest days in Westfield?
How many hours of daylight does Westfield have in December?
When is the sunrise / sunset in December in Westfield?
How long on average sun shines in December in Westfield?
When is the lowest UV index in Westfield?
What is the UV index reading in December in Westfield?
Average temperature in December
Westfield, IN
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (81.5°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 (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Westfield, IN
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Westfield, IN
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Westfield, 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
Westfield, IN
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in December
Westfield, IN
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
Westfield, IN
- Average snowfall in December: 1.38"
The month with the highest snowfall is December (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Westfield, IN
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (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
Westfield, 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 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Westfield, IN
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Westfield, IN
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Westfield, IN
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Westfield, IN
- 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).
Westfield, Indiana, USA
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