December weather forecastSurprise, IN
December
Weather in December
The first month of the winter, December, is also a wintry month in Surprise, Indiana, with an average temperature ranging between max 42.3°F (5.7°C) and min 30.6°F (-0.8°C).Temperature
The beginning of December marks a decrease in the average high-temperature, transitioning from a cool 51.6°F (10.9°C) in November to an icy 42.3°F (5.7°C). Surprise observes an average low-temperature of 30.6°F (-0.8°C) during December.Humidity
December is the most humid month in Surprise, with an average relative humidity of 81%.Rainfall
In Surprise, during December, the rain falls for 10.7 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Surprise, there are 158.9 rainfall days, and 29.72" (755mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Surprise, in December, during 7.3 snowfall days, 1.81" (46mm) of snow is typically accumulated. In Surprise, during the entire year, snow falls for 32.5 days and aggregates up to 8.74" (222mm) of snow.Daylight
The month with the shortest days in Surprise is December, with an average of 9h and 30min of daylight.On the first day of December in Surprise, sunrise is at 7:44 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:32 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 4.1h of sunshine.UV index
The months with the lowest UV index in Surprise are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. 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
Average temperature in December
Surprise, IN
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 30.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
Surprise, IN
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Surprise, IN
- Average wind speed in December: 7.4mph
The windiest months (with the highest average wind speed) are January, February and April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Surprise, IN
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Surprise, IN
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Surprise, IN
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Surprise, IN
- Average snowfall in December: 1.81"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Surprise, IN
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (8.8 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
Surprise, IN
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in December
Surprise, IN
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Surprise, 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, November and December (UV index 2).
Average cloud cover in December
Surprise, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Surprise, IN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
