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 Tustin, the average high-temperature in December decreases from an icy 41.2°F (5.1°C) in November to a freezing cold 30°F (-1.1°C). A slight dip in temperature to a still subzero cold 22.3°F (-5.4°C) marks the average nights during December.Humidity
In December, the average relative humidity is 88%.Rainfall
In Tustin, during December, the rain falls for 7.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 146.4 rainfall days, and 27.05" (687mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Tustin, during December, snow falls for 20.3 days and regularly aggregates up to 8.15" (207mm) of snow. Throughout the year, there are 100.4 snowfall days, and 41.69" (1059mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:57 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 8:16 am and sunset at 5:13 pm EST.
Sunshine
The average sunshine in December is 2.1h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 during December translates into the following guidance:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Tustin?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Tustin have in December?
When is the sunrise / sunset in December in Tustin?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Tustin, MI
- Average high temperature in December: 30°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in December: 22.3°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in December
Tustin, MI
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Tustin, MI
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Tustin, MI
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in December
Tustin, MI
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is October (3.46").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in December
Tustin, MI
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in December
Tustin, MI
- Average snowfall in December: 8.15"
The month with the highest snowfall is January (10.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Tustin, MI
- Average snowfall days in December: 20.3 days
The month with the highest number of snowfall days is January (23.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tustin, MI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 2h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).
Average sunshine days in December
Tustin, MI
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is September (13.3 days).
The month with the least sunshine days is January (6 days).
Average UV index in December
Tustin, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Tustin, MI
- Average cloud cover in December: 78
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Tustin, MI
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Tustin, Michigan, USA
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