December weather forecast
Tampico, MT

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Weather in December

The first month of the winter, December, is still a freezing cold month in Tampico, Montana, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 24.6°F (-4.1°C).

Temperature

December's arrival correlates with a reduction in the average high-temperature, down from a wintry 38.3°F (3.5°C) in November to a freezing cold 24.6°F (-4.1°C). In Tampico, an average temperature of 12.7°F (-10.7°C) is noted during December nights.

Humidity

In Tampico, the average relative humidity in December is 84%.

Rainfall

In Tampico, during December, the rain falls for 3 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 90.8 rainfall days, and 11.1" (282mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Tampico. December is the month with the most snowfall. Snow falls for 8.6 days and accumulates 2.6" (66mm) of snow.

Daylight

December has the shortest days of the year in Tampico, with an average of 8h and 24min of daylight.
On the first day of December in Tampico, sunrise is at 7:38 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:23 pm MST.

Sunshine

In Tampico, the average sunshine in December is 4.9h.

UV index

December is the month with the lowest UV index in Tampico, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is it in Tampico in December?

In December, in Tampico, the average high-temperature is 24.6°F (-4.1°C), and the average low-temperature is 12.7°F (-10.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 80.6°F (27°C).

What is the average humidity in December in Tampico?

In Tampico, the average relative humidity in December is 84%.

How many days does it rain in December in Tampico?

In Tampico, Montana, in December, during 3 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

When does it snow the most in Tampico?

The month with the most snowfall in Tampico is December, when snow falls for 8.6 days and typically aggregates up to 2.6" (66mm) of snow.

How much does it snow in Tampico in December?

In Tampico, in December, during 8.6 snowfall days, 2.6" (66mm) of snow is typically accumulated.

What is the month with the shortest days in Tampico?

December has the shortest days of the year in Tampico, Montana, with an average of 8h and 24min of daylight.

What is the average length of the day in December in Tampico?

In December, the average day length in Tampico, Montana, is 8h and 25min.

When is the sunrise / sunset in December in Tampico?

On the first day of December, sunrise is at 7:38 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:23 pm MST.

How many hours of sunshine does Tampico have in December?

The average sunshine duration in December in Tampico is 4.9h.

When is the lowest UV index in Tampico?

December is the month with the lowest UV index in Tampico, with an average maximum UV index of 1.

What is the UV index reading in December in Tampico?

The average daily maximum UV index in December in Tampico, Montana, is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Tampico, MT

Average temperature in December - Tampico, MT
  • Average high temperature in December: 24.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (23.7°F).

  • Average low temperature in December: 12.7°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (10.2°F).

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Average pressure in December
Tampico, MT

Average pressure in December - Tampico, MT
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in December
Tampico, MT

Average wind speed in December - Tampico, MT
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).

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Average humidity in December
Tampico, MT

Average humidity in December - Tampico, MT
  • Average humidity in December: 84%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in December
Tampico, MT

Average rainfall in December - Tampico, MT
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.35").

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Average rainfall days in December
Tampico, MT

Average rainfall days in December - Tampico, MT
  • Average rainfall days in December: 3 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in December
Tampico, MT

Average snowfall in December - Tampico, MT
  • Average snowfall in December: 2.6"

The month with the highest snowfall is December (2.6").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Tampico, MT

Average snowfall days in December - Tampico, MT
  • Average snowfall days in December: 8.6 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Tampico, MT

Average daylight in December / Average sunshine in December - Tampico, MT
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Tampico, MT

Average sunshine days in December - Tampico, MT
  • Average sunshine days in December: 20.4 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).

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Average UV index in December
Tampico, MT

Average UV index in December - Tampico, MT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Tampico, MT

Average cloud cover in December - Tampico, MT
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 16).

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Average visibility in December
Tampico, MT

Average visibility in December - Tampico, MT
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Tampico, Montana, USA

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