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
As November transitions into December, Dawson sees a drop in the average high-temperature, transitioning from a chilly 46.6°F (8.1°C) to a wintry 32.9°F (0.5°C). An average low-temperature of 21.4°F (-5.9°C) is common during the nights of December.Humidity
The average relative humidity in December is 79%.Rainfall
In Dawson, during December, the rain falls for 5.5 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, in Dawson, there are 131.7 rainfall days, and 26.65" (677mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Dawson, in December, snow falls for 7.5 days, with typically accumulated 1.81" (46mm) of snow. In Dawson, during the entire year, snow falls for 37.2 days and aggregates up to 13.35" (339mm) of snow.Daylight
The month with the shortest days in Dawson, Iowa, is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:25 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:56 pm CST.
Sunshine
The average sunshine in December in Dawson is 4.8h.UV index
The months with the lowest UV index in Dawson, Iowa, are January, February, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is December in Dawson?
What is the average humidity in December in Dawson?
How many days does it rain in December in Dawson?
How much does it snow in Dawson in December?
What is the month with the shortest days in Dawson?
How many hours of daylight does Dawson have in December?
When are sunrise and sunset in December in Dawson?
How many hours of sunshine does Dawson have in December?
What are the months with the lowest UV index in Dawson?
What is the UV index intensity in December in Dawson?
Average temperature in December
Dawson, IA
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in December: 21.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in December
Dawson, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Dawson, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Dawson, IA
- Average humidity in December: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Dawson, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in December
Dawson, IA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Dawson, IA
- Average snowfall in December: 1.81"
The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dawson, IA
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dawson, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Dawson, IA
- Average sunshine days in December: 18.9 days
The months with the most sunshine days are October, November and December (18.9 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in December
Dawson, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Dawson, IA
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in December
Dawson, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Dawson, Iowa, USA
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