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 implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 47.3°F (8.5°C) to an icy 36.5°F (2.5°C). Simpson, during the month of December, experiences an average low-temperature of 26.6°F (-3°C).Humidity
In Simpson, Indiana, the average relative humidity in December is 83%.Rainfall
In Simpson, during December, the rain falls for 8.5 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, in Simpson, there are 153.8 rainfall days, and 25" (635mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Simpson. In Simpson, in December, snow falls for 10.1 days, with typically accumulated 1.93" (49mm) of snow. In Simpson, during the entire year, snow falls for 47.8 days and aggregates up to 11.93" (303mm) of snow.Daylight
The month with the shortest days in Simpson, Indiana, is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:47 am and sunset at 5:14 pm. On the last day of December, sunrise is at 8:05 am and sunset at 5:24 pm EST.
Sunshine
In December, the average sunshine is 3.8h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold is December in Simpson?
What is the average humidity in December in Simpson?
How much does it rain in Simpson in December?
How much does it snow in Simpson in December?
What is the month with the shortest days in Simpson?
What is the average length of the day in December in Simpson?
What time are sunrise and sunset in December in Simpson?
How long on average sun shines in December in Simpson?
When is the lowest UV index in Simpson?
What is the UV index reading in December in Simpson?
Average temperature in December
Simpson, IN
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in December
Simpson, 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
Simpson, 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
Simpson, IN
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Simpson, IN
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in December
Simpson, IN
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Simpson, IN
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Simpson, IN
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Simpson, 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 month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Simpson, IN
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is October (16 days).
The months with the least sunshine days are February and May (10.5 days).
Average UV index in December
Simpson, IN
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Simpson, IN
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Simpson, IN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
Simpson, Indiana, USA
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