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December Weather in Hollidaysburg, United States

Last updated: June 24, 2025

In December, the average temperature in Hollidaysburg, United States hovers around 1°C (33°F), with extremes ranging from a brisk -16°C (4°F) to a mild 19°C (66°F). Expect about 97 mm (3.8 in) of precipitation over approximately 11 days, creating a sense of moody beauty. The air is quite humid, with an average humidity of 88%, giving this month an atmospheric charm that's hard to resist.

December Temperature in Hollidaysburg

In December in Hollidaysburg, the average temperature is 1°C (33°F), with maximums reaching 19°C (66°F) and minimums dropping as low as -16°C (4°F). Travelers should be prepared for a wide range of temperatures, making layering essential for comfort.

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

The chart illustrates December temperature patterns in Hollidaysburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hollidaysburg, December typically has an average temperature of 1°C (33°F), with highs reaching up to 19°C (66°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec283238485967737165543933
Data source: Temperature data for Hollidaysburg 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 Hollidaysburg

In Hollidaysburg in December, the total precipitation amount is 97 mm (3.8 in) over the course of 11 days.

December Precipitation Trends in Hollidaysburg

The chart displays monthly precipitation patterns in Hollidaysburg, 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 Hollidaysburg, December typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7311296115139117119971301148097
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hollidaysburg

In Hollidaysburg in December humidity is 88%. With an average temperature of 1°C (33°F), this humidity feels like a damp chill wrapping around you, making it difficult to stay warm while traveling, as each breath carries a heavy, cold moisture that clings to your skin.

December Average Humidity in Hollidaysburg

This chart illustrates the average monthly humidity levels in Hollidaysburg, 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 Hollidaysburg is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hollidaysburg

In Hollidaysburg in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Hollidaysburg, you can check the information here.

Maximum UV Index Levels in Hollidaysburg for December

The chart shows the monthly maximum UV Index (UVI) for Hollidaysburg 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 Hollidaysburg typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: Hollidaysburg 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 Hollidaysburg Compares to Other Months

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

This table compares monthly weather conditions in Hollidaysburg, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)73 mm (2.9 inches)89%moderate
February Weather0°C (32°F)112 mm (4.4 inches)90%moderate
March Weather3°C (38°F)96 mm (3.8 inches)89%high
April Weather9°C (49°F)115 mm (4.5 inches)88%very high
May Weather15°C (60°F)139 mm (5.5 inches)80%very high
June Weather20°C (68°F)117 mm (4.6 inches)79%very high
July Weather23°C (73°F)119 mm (4.7 inches)74%very high
August Weather22°C (71°F)97 mm (3.8 inches)64%very high
September Weather18°C (65°F)130 mm (5.1 inches)67%very high
October Weather12°C (54°F)114 mm (4.5 inches)81%high
November Weather4°C (39°F)80 mm (3.1 inches)89%moderate
December Weather1°C (33°F)97 mm (3.8 inches)88%moderate

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