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 brings a drop in Hiram's average high-temperature, falling from a chilly 43.3°F (6.3°C) in November to a subzero cold 31.8°F (-0.1°C). The average temperature drops to a still freezing cold 21.2°F (-6°C) during the night in the month of December.Humidity
The average relative humidity in December is 80%.Rainfall
In Hiram, during December, the rain falls for 9.7 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Hiram, during the entire year, the rain falls for 137 days and collects up to 27.52" (699mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 9.3 days. Throughout December, 6.38" (162mm) of snow is accumulated. In Hiram, during the entire year, snow falls for 49.1 days and aggregates up to 38.7" (983mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 6:58 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:15 pm EST.
Sunshine
In December, the average sunshine is 4.9h.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 2 in December transforms into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December in Hiram?
What is the month with the shortest days?
How many hours of daylight does Hiram have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Hiram have in December?
What is the UV index intensity in December?
Average temperature in December
Hiram, ME
- Average high temperature in December: 31.8°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Hiram, ME
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Hiram, ME
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Hiram, ME
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, May and November (77%).
Average rainfall in December
Hiram, ME
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in December
Hiram, ME
- Average rainfall days in December: 9.7 days
The months with the highest number of rainy days are April and July (14.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Hiram, ME
- Average snowfall in December: 6.38"
The month with the highest snowfall is February (9.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hiram, ME
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hiram, ME
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Hiram, ME
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in December
Hiram, ME
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Hiram, ME
- Average cloud cover in December: 48
The months with the most cloud cover are March and April (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Hiram, ME
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Hiram, Maine, USA
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