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December Weather in Shamrock, United States

Last updated: June 24, 2025

In December, the average temperature in Shamrock, United States hovers around 6°C (43°F). Be prepared for a range of temperatures, as the minimum can dip to -11°C (13°F), while the maximum can reach a warm 27°C (81°F). Rainfall is modest, with an average precipitation of 22 mm (0.9 in) spread over 2 days. The atmosphere can feel quite humid, with an average humidity of 81%.

December Temperature in Shamrock

In December in Shamrock, the average temperature is 6°C (43°F), with maximums reaching 27°C (81°F) and minimums dipping as low as -11°C (13°F). This range makes Shamrock ideal for travelers who enjoy experiencing both mild and chilly weather.

December Weather in Shamrock: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Shamrock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shamrock, December typically has an average temperature of 6°C (43°F), with highs reaching up to 27°C (81°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec383951586877818073594942
Data source: Temperature data for Shamrock generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Shamrock

In Shamrock in December, the precipitation amount is 22 mm (0.9 in) over a span of 2 days.

December Precipitation Trends in Shamrock

The chart displays monthly precipitation patterns in Shamrock, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Shamrock, December typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec241666378868374050711423
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Shamrock

In Shamrock in December, humidity is 81%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill enveloping you, making every step outside seem heavier and less inviting for traveling.

December Average Humidity in Shamrock

This chart illustrates the average monthly humidity levels in Shamrock, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Shamrock is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%64%70%78%81%82%78%72%73%81%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Shamrock

In Shamrock in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Shamrock for better planning.

Maximum UV Index Levels in Shamrock for December

The chart shows the monthly maximum UV Index (UVI) for Shamrock in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Shamrock typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110754
Data source: Shamrock December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Shamrock Compares to Other Months

Weather in Shamrock varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Shamrock, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Shamrock, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (39°F)24 mm (0.9 inches)75%moderate
February Weather4°C (39°F)16 mm (0.6 inches)76%high
March Weather11°C (52°F)66 mm (2.6 inches)64%very high
April Weather14°C (58°F)37 mm (1.5 inches)70%very high
May Weather20°C (68°F)88 mm (3.5 inches)78%extreme
June Weather25°C (78°F)68 mm (2.7 inches)81%extreme
July Weather27°C (81°F)37 mm (1.4 inches)82%extreme
August Weather26°C (80°F)40 mm (1.6 inches)78%extreme
September Weather23°C (74°F)50 mm (2.0 inches)72%very high
October Weather15°C (60°F)71 mm (2.8 inches)73%high
November Weather9°C (49°F)14 mm (0.6 inches)80%moderate
December Weather6°C (43°F)22 mm (0.9 inches)81%moderate

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