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 Johnson, the average high-temperature in December drops from a cool 50.7°F (10.4°C) in November to a cold 36.7°F (2.6°C). During December, Johnson observes a consistent average nighttime temperature of 23.9°F (-4.5°C).Humidity
In Johnson, Nebraska, the average relative humidity in December is 75%.Rainfall
In Johnson, during December, the rain falls for 3.5 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 92 rainfall days, and 8.78" (223mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Johnson, in December, during 3.5 snowfall days, 0.31" (8mm) of snow is typically accumulated. Throughout the year, there are 19.1 snowfall days, and 3.07" (78mm) of snow is accumulated.Daylight
The month with the shortest days in Johnson is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:46 am and sunset at 5:07 pm CST.
Sunshine
The average sunshine in December is 5.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, the average maximum UV index of 2 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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much 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 Johnson have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Johnson, NE
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Johnson, NE
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Johnson, NE
- Average wind speed in December: 9.7mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in December
Johnson, NE
- Average humidity in December: 75%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Johnson, NE
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is June (1.46").
The driest month (with the least rainfall) is February (0.2").
Average rainfall days in December
Johnson, NE
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is May (12 days).
The month with the least rainy days is January (2.6 days).
Average snowfall in December
Johnson, NE
- Average snowfall in December: 0.31"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Johnson, NE
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is February (5.3 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
Johnson, NE
- 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 18min).
- Average sunshine in December: 5h and 2min
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 0min).
Average sunshine days in December
Johnson, NE
- Average sunshine days in December: 25 days
The month with the most sunshine days is December (25 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in December
Johnson, NE
- 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
Johnson, NE
- Average cloud cover in December: 42
The months with the most cloud cover are January and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Johnson, NE
- 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).
Johnson, Nebraska, USA
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