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 correlates with a reduction in the average high-temperature, down from a frosty 46.6°F (8.1°C) in November to an icy 33.6°F (0.9°C). Throughout the month of December, the average temperature in Holbrook dips to a subzero cold 22.6°F (-5.2°C) at night.Humidity
In Holbrook, Iowa, the average relative humidity in December is 81%.Rainfall
In Holbrook, in December, it is raining for 6.4 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, in Holbrook, there are 142 rainfall days, and 29.09" (739mm) of precipitation is accumulated.Snowfall
Months with snowfall in Holbrook are January through May, October through December. In December, in Holbrook, it is snowing for 6.7 days. Throughout December, 2.17" (55mm) of snow is accumulated. In Holbrook, during the entire year, snow falls for 35.1 days and aggregates up to 15.43" (392mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:47 pm CST.
Sunshine
The average sunshine in December in Holbrook is 4.5h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Holbrook. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is it in Holbrook in December?
What is the average humidity in December in Holbrook?
How much does it rain in Holbrook in December?
How much does it snow in Holbrook in December?
What is the month with the shortest days in Holbrook?
What is the average length of the day in December in Holbrook?
What time are sunrise and sunset in December in Holbrook?
How long on average sun shines in December in Holbrook?
When is the lowest UV index in Holbrook?
What is the UV index reading in December in Holbrook?
Average temperature in December
Holbrook, IA
- Average high temperature in December: 33.6°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 (27.1°F).
- Average low temperature in December: 22.6°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Holbrook, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Holbrook, IA
- Average wind speed in December: 10.1mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Holbrook, IA
- Average humidity in December: 81%
The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Holbrook, IA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Holbrook, IA
- Average rainfall days in December: 6.4 days
The months with the highest number of rainy days are May and June (18.5 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Holbrook, IA
- Average snowfall in December: 2.17"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Holbrook, IA
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Holbrook, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Holbrook, IA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in December
Holbrook, IA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Holbrook, IA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in December
Holbrook, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Holbrook, Iowa, USA
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