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
The shift to December brings a decrease in the average high-temperature, falling from a chilly 45.7°F (7.6°C) in November to a cold 32.5°F (0.3°C). Haverhill witnesses a consistent average low-temperature of 21.6°F (-5.8°C) throughout December.Humidity
In Haverhill, the average relative humidity in December is 81%.Rainfall
In Haverhill, in December, it is raining for 3.7 days, with typically 0.39" (10mm) of accumulated precipitation. In Haverhill, during the entire year, the rain falls for 102 days and collects up to 10.59" (269mm) of precipitation.Snowfall
Months with snowfall in Haverhill are January through May, October through December. In Haverhill, in December, snow falls for 5.5 days, with typically accumulated 0.63" (16mm) of snow. In Haverhill, Iowa, during the entire year, snow falls for 29.9 days and aggregates up to 4.92" (125mm) of snow.Daylight
December has the shortest days of the year in Haverhill, with an average of 9h and 12min of daylight.On the first day of December in Haverhill, sunrise is at 7:20 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:50 pm CST.
Sunshine
In Haverhill, the average sunshine in December is 4.5h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Haverhill. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Haverhill?
What is the average humidity in December in Haverhill?
How much does it rain in Haverhill in December?
How much does it snow in Haverhill in December?
What is the month with the shortest days in Haverhill?
What is the average length of the day in December in Haverhill?
When is the sunrise / sunset in December in Haverhill?
How long on average sun shines in December in Haverhill?
What is the month with the lowest UV index in Haverhill?
What is the UV index intensity in December in Haverhill?
Average temperature in December
Haverhill, IA
- Average high temperature in December: 32.5°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 (26.2°F).
- Average low temperature in December: 21.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in December
Haverhill, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Haverhill, IA
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Haverhill, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Haverhill, IA
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is May (1.69").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days in December
Haverhill, IA
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Haverhill, IA
- Average snowfall in December: 0.63"
The month with the highest snowfall is January (1.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Haverhill, IA
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Haverhill, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Haverhill, IA
- Average sunshine days in December: 22.9 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in December
Haverhill, 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
Haverhill, IA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in December
Haverhill, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Haverhill, Iowa, USA
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