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March Weather in New Castle Northwest, United States

Last updated: June 24, 2025

In March, the average temperature in New Castle Northwest, United States hovers around 4°C (40°F), but be prepared for a range: it can dip as low as -15°C (5°F) or soar up to 24°C (76°F). Expect 108 mm (4.3 in) of precipitation spread across about 14 days, contributing to an average humidity of a steamy 87%.

March Temperature in New Castle Northwest

In March in New Castle Northwest, the average temperature is 4°C (40°F), with maximums reaching 24°C (76°F) and minimums dropping to as low as -15°C (5°F). Travelers should be prepared for a wide range of temperatures, from chilly days to pleasantly warm afternoons.

March Weather in New Castle Northwest: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in New Castle Northwest, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Castle Northwest, March typically has an average temperature of 4°C (40°F), with highs reaching up to 24°C (76°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec293339496169737166564135
Data source: Temperature data for New Castle Northwest 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.

March Precipitation in New Castle Northwest

In New Castle Northwest in March, the total precipitation amount is 108 mm (4.3 in) spread over 14 days.

March Precipitation Trends in New Castle Northwest

The chart displays monthly precipitation patterns in New Castle Northwest, 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 New Castle Northwest, March typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9811110813914113814199115125103103
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in New Castle Northwest

In New Castle Northwest in March humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

March Average Humidity in New Castle Northwest

This chart illustrates the average monthly humidity levels in New Castle Northwest, 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 New Castle Northwest is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in New Castle Northwest

In New Castle Northwest in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in New Castle Northwest, you can refer to this Hourly UV Index in New Castle Northwest.

Maximum UV Index Levels in New Castle Northwest for March

The chart shows the monthly maximum UV Index (UVI) for New Castle Northwest 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 New Castle Northwest typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: New Castle Northwest 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 New Castle Northwest Compares to Other Months

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

This table compares monthly weather conditions in New Castle Northwest, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)98 mm (3.9 inches)88%moderate
February Weather0°C (33°F)111 mm (4.4 inches)88%moderate
March Weather4°C (40°F)108 mm (4.3 inches)87%high
April Weather10°C (50°F)139 mm (5.5 inches)87%very high
May Weather16°C (61°F)141 mm (5.6 inches)81%very high
June Weather20°C (69°F)138 mm (5.4 inches)83%very high
July Weather23°C (74°F)141 mm (5.5 inches)82%very high
August Weather22°C (72°F)99 mm (3.9 inches)76%very high
September Weather19°C (66°F)115 mm (4.5 inches)77%very high
October Weather13°C (56°F)125 mm (4.9 inches)82%high
November Weather5°C (41°F)103 mm (4.0 inches)89%moderate
December Weather1°C (35°F)103 mm (4.0 inches)86%low

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