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May Weather in Granite Falls, United States

Last updated: June 24, 2025

In Granite Falls, United States, the average temperature in May hovers around 15°C (59°F). Expect a minimum temperature of 0°C (33°F) and the possibility of reaching a maximum of 35°C (95°F). You can also anticipate 110 mm (4.3 in) of precipitation spread over 11 days, with average humidity levels at a comfortable 76%.

May Temperature in Granite Falls

In May, in Granite Falls, the average temperature is 15°C (59°F). The maximum can reach 35°C (95°F), while the minimum can drop as low as 0°C (33°F). This varied climate makes Granite Falls an ideal destination for travelers seeking both warmth and cool relief during the month.

May Weather in Granite Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Granite Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granite Falls, May typically has an average temperature of 15°C (59°F), with highs reaching up to 35°C (95°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec161632435972747064483424
Data source: Temperature data for Granite Falls 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.

May Precipitation in Granite Falls

In Granite Falls in May, the precipitation amount is 110 mm (4.3 in) spread over 11 days.

May Precipitation Trends in Granite Falls

The chart displays monthly precipitation patterns in Granite Falls, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Granite Falls, May typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec2123577611086108125107932739
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Granite Falls

In Granite Falls in May humidity is 76%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities less enjoyable and often leading to a quick sense of fatigue while traveling.

May Average Humidity in Granite Falls

This chart illustrates the average monthly humidity levels in Granite Falls, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Granite Falls is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Granite Falls

In Granite Falls in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Granite Falls.

Maximum UV Index Levels in Granite Falls for May

The chart shows the monthly maximum UV Index (UVI) for Granite Falls in May, 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 May, the maximum UV index in Granite Falls typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3557910997532
Data source: Granite Falls May 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 May Weather in Granite Falls Compares to Other Months

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

This table compares monthly weather conditions in Granite Falls, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)21 mm (0.8 inches)85%moderate
February Weather-9°C (16°F)23 mm (0.9 inches)89%moderate
March Weather0°C (33°F)57 mm (2.3 inches)81%moderate
April Weather6°C (43°F)76 mm (3.0 inches)82%high
May Weather15°C (59°F)110 mm (4.3 inches)76%very high
June Weather22°C (72°F)86 mm (3.4 inches)81%very high
July Weather23°C (74°F)108 mm (4.3 inches)82%very high
August Weather21°C (71°F)125 mm (4.9 inches)83%very high
September Weather18°C (65°F)107 mm (4.2 inches)82%high
October Weather9°C (48°F)93 mm (3.7 inches)82%moderate
November Weather1°C (34°F)27 mm (1.1 inches)87%moderate
December Weather-5°C (24°F)39 mm (1.6 inches)84%low

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