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
December's arrival witnesses a distinct drop in the average high-temperature, receding from November's cold 38.7°F (3.7°C) to a freezing cold 23.9°F (-4.5°C). During the nights in December, Saint Joseph experiences a consistent average temperature of 13.5°F (-10.3°C).Humidity
The average relative humidity in December is 87%.Rainfall
In Saint Joseph, in December, it is raining for 3.4 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, in Saint Joseph, there are 109.6 rainfall days, and 17.52" (445mm) of precipitation is accumulated.Snowfall
Months with snowfall in Saint Joseph are January through May, October through December. December is the month with the most snowfall. Snow falls for 12.6 days and accumulates 4.13" (105mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:37 am and sunset at 4:35 pm. On the last day of December, in Saint Joseph, sunrise is at 7:57 am and sunset at 4:43 pm CST.
Sunshine
The average sunshine in December is 3.4h.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 estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Saint Joseph?
What is the average humidity in December in Saint Joseph?
How many days does it rain in December in Saint Joseph?
When does it snow the most in Saint Joseph?
How much does it snow in Saint Joseph in December?
What is the month with the shortest days in Saint Joseph?
How many hours of daylight does Saint Joseph have in December?
When are sunrise and sunset in December in Saint Joseph?
How long on average sun shines in December in Saint Joseph?
When is the lowest UV index in Saint Joseph?
What is the UV index intensity in December in Saint Joseph?
Average temperature in December
Saint Joseph, MN
- Average high temperature in December: 23.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in December: 13.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in December
Saint Joseph, MN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Saint Joseph, MN
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Saint Joseph, MN
- Average humidity in December: 87%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (70%).
Average rainfall in December
Saint Joseph, MN
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Saint Joseph, MN
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in December
Saint Joseph, MN
- Average snowfall in December: 4.13"
The month with the highest snowfall is December (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Joseph, MN
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Joseph, MN
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Saint Joseph, MN
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in December
Saint Joseph, MN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Saint Joseph, MN
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Saint Joseph, MN
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Saint Joseph, Minnesota, USA
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