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March Weather in Rock Island, United States

Last updated: June 24, 2025

In March, the average temperature in Rock Island, United States hovers around 23°C (73°F). Expect chilly nights with a minimum of 9°C (48°F), while daytime can sizzle up to 33°C (91°F). Precipitation is moderate, with 28 mm (1.1 in) falling over 5 days, and the average humidity sits at a comfortable 75%.

March Temperature in Rock Island

In March in Rock Island, the average temperature is 23°C (73°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 9°C (48°F). This makes it an ideal month for travelers seeking pleasant weather and a variety of outdoor activities.

March Weather in Rock Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Rock Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rock Island, March typically has an average temperature of 23°C (73°F), with highs reaching up to 33°C (91°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec687373777982838382817571
Data source: Temperature data for Rock Island 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 Rock Island

In Rock Island in March, the precipitation amount is 28 mm (1.1 in) over a period of 5 days.

March Precipitation Trends in Rock Island

The chart displays monthly precipitation patterns in Rock Island, 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 Rock Island, March typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec304928781632372282272251467436
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Rock Island

In Rock Island in March, humidity is 75%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel slightly uncomfortable yet invigorating as the air wraps around you, creating a sense of walking through a lush, tropical paradise.

March Average Humidity in Rock Island

This chart illustrates the average monthly humidity levels in Rock Island, 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 Rock Island is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%80%75%68%65%73%77%80%83%83%83%84%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Rock Island

In Rock Island in March, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Rock Island.

Maximum UV Index Levels in Rock Island for March

The chart shows the monthly maximum UV Index (UVI) for Rock Island 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 Rock Island typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101212121212111076
Data source: Rock Island 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 Rock Island Compares to Other Months

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

This table compares monthly weather conditions in Rock Island, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)30 mm (1.2 inches)83%high
February Weather23°C (73°F)49 mm (1.9 inches)80%very high
March Weather23°C (73°F)28 mm (1.1 inches)75%very high
April Weather25°C (77°F)78 mm (3.1 inches)68%extreme
May Weather26°C (80°F)163 mm (6.4 inches)65%extreme
June Weather28°C (82°F)237 mm (9.3 inches)73%extreme
July Weather28°C (83°F)228 mm (9.0 inches)77%extreme
August Weather29°C (84°F)227 mm (8.9 inches)80%extreme
September Weather28°C (83°F)224 mm (8.8 inches)83%extreme
October Weather27°C (81°F)146 mm (5.8 inches)83%very high
November Weather24°C (75°F)74 mm (2.9 inches)83%high
December Weather21°C (71°F)36 mm (1.4 inches)84%high

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