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
Rochester's transition into December involves a shift in temperature, receding from a frosty 47.3°F (8.5°C) in November to a wintry 36.3°F (2.4°C). During the December nights, an average temperature of 26.6°F (-3°C) is observed.Humidity
In December, the average relative humidity in Rochester is 82%.Rainfall
February and December are months with the least rain in Rochester when the rain falls for 6.8 days and typically aggregates up to 0.79" (20mm) of rain.Snowfall
Months with snowfall in Rochester are January through April, October through December. In Rochester, Indiana, during December, snow falls for 5.8 days and regularly aggregates up to 0.83" (21mm) of snow. Throughout the year, in Rochester, there are 29.3 snowfall days, and 6.46" (164mm) of snow is accumulated.Daylight
December has the shortest days of the year in Rochester, with an average of 9h and 18min of daylight.On the first day of December in Rochester, sunrise is at 7:51 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 5:26 pm EST.
Sunshine
The average sunshine in December is 3.8h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Rochester in December?
What is the average humidity in December in Rochester?
What is the driest month in Rochester?
How many days does it rain in December in Rochester?
How many days does it snow in December in Rochester?
What is the month with the shortest days in Rochester?
What is the average length of the day in December in Rochester?
What time are sunrise and sunset in December in Rochester?
How long on average sun shines in December in Rochester?
What is the month with the lowest UV index in Rochester?
How high is the UV index in December in Rochester?
Average temperature in December
Rochester, IN
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Rochester, IN
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Rochester, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Rochester, IN
- Average humidity in December: 82%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Rochester, IN
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are February and December (0.79").
Average rainfall days in December
Rochester, IN
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in December
Rochester, IN
- Average snowfall in December: 0.83"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rochester, IN
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (8 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
Rochester, IN
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 3h and 5min
The months with the most sunshine are June and July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Rochester, IN
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in December
Rochester, IN
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Rochester, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Rochester, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
Rochester, Indiana, USA
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