nomadseason

March Weather in Harrisburg, United States

Last updated: June 24, 2025

In March, the average temperature in Harrisburg, United States hovers around 12°C (54°F). However, be prepared for a wide range, as temperatures can dip to a chilly -6°C (22°F) or soar up to a warm 30°C (87°F). Visitors can expect about 83 mm (3.3 in) of precipitation spread across 10 days, with an average humidity level of 84%, creating a humid atmosphere throughout the month.

March Temperature in Harrisburg

In March in Harrisburg, the average temperature is 12°C (54°F). The maximum can reach 30°C (87°F), while the minimum can drop as low as -6°C (22°F). It's a time to prepare for a wide range of temperatures, so pack accordingly for your trip!

March Weather in Harrisburg: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Harrisburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harrisburg, March typically has an average temperature of 12°C (54°F), with highs reaching up to 30°C (87°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec434954627177817974655147
Data source: Temperature data for Harrisburg generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Harrisburg

In Harrisburg in March, the total precipitation amount is 83 mm (3.3 in) over a span of 10 days.

March Precipitation Trends in Harrisburg

The chart displays monthly precipitation patterns in Harrisburg, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Harrisburg, March typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9211683103113821141051339290120
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Harrisburg

In Harrisburg in March, humidity is 84%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and sticky.

March Average Humidity in Harrisburg

This chart illustrates the average monthly humidity levels in Harrisburg, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Harrisburg is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%87%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Harrisburg

In Harrisburg in March, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Harrisburg.

Maximum UV Index Levels in Harrisburg for March

The chart shows the monthly maximum UV Index (UVI) for Harrisburg in March, 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 March, the maximum UV index in Harrisburg typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101110109853
Data source: Harrisburg March 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 March Weather in Harrisburg Compares to Other Months

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

This table compares monthly weather conditions in Harrisburg, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)92 mm (3.6 inches)86%moderate
February Weather9°C (49°F)116 mm (4.6 inches)85%high
March Weather12°C (54°F)83 mm (3.3 inches)84%very high
April Weather17°C (62°F)103 mm (4.0 inches)82%very high
May Weather22°C (71°F)113 mm (4.5 inches)83%very high
June Weather25°C (77°F)82 mm (3.2 inches)82%extreme
July Weather27°C (81°F)114 mm (4.5 inches)80%very high
August Weather26°C (79°F)105 mm (4.1 inches)74%very high
September Weather23°C (75°F)133 mm (5.2 inches)75%very high
October Weather18°C (65°F)92 mm (3.6 inches)79%very high
November Weather10°C (51°F)90 mm (3.5 inches)87%moderate
December Weather8°C (47°F)120 mm (4.7 inches)87%moderate

Compare Harrisburg's Climate with Cities Worldwide