December weather forecastPassaic, MO
December
Weather in December
The first month of the winter, December, is still a chilly month in Passaic, Missouri, with an average temperature varying between 43°F (6.1°C) and 29.3°F (-1.5°C).Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a cool 54.1°F (12.3°C) in November to a frosty 43°F (6.1°C). Passaic, during the month of December, experiences an average low-temperature of 29.3°F (-1.5°C).Humidity
In December, the average relative humidity is 73%.Rainfall
In Passaic, in December, it is raining for 6.3 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Passaic, there are 131.6 rainfall days, and 22.2" (564mm) of precipitation is accumulated.Snowfall
January through March, May, October through December are months with snowfall. In December, in Passaic, it is snowing for 2.3 days. Throughout December, 0.63" (16mm) of snow is accumulated. In Passaic, during the entire year, snow falls for 12.7 days and aggregates up to 4.88" (124mm) of snow.Daylight
December has the shortest days of the year in Passaic, Missouri, with an average of 9h and 30min of daylight.On the first day of December in Passaic, sunrise is at 7:16 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:07 pm CST.
Sunshine
In December, the average sunshine in Passaic is 5.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Passaic. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On days when the sun blazes, arm yourself with sunglasses that block 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
Average temperature in December
Passaic, MO
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Passaic, MO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Passaic, MO
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Passaic, MO
- Average humidity in December: 73%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Passaic, MO
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in December
Passaic, MO
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in December
Passaic, MO
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days in December
Passaic, MO
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are April, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Passaic, MO
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Passaic, MO
- Average sunshine days in December: 22.8 days
The months with the most sunshine days are January and December (22.8 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in December
Passaic, MO
- Average UV index in December: 2
The months with the highest UV index are May, 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
Passaic, MO
- Average cloud cover in December: 40
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Passaic, MO
- 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).
