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May Weather in Winthrop, United States

Last updated: June 24, 2025

In Winthrop, United States, the average temperature in May hovers around 14°C (57°F). However, temperatures can swing dramatically, with minimums dropping to -2°C (29°F) and maximums soaring to 35°C (95°F). During this time, expect 110 mm (4.3 in) of precipitation over approximately 13 days, accompanied by an average humidity of 80%—perfect for those who enjoy a fresh, brisk atmosphere!

May Temperature in Winthrop

In May in Winthrop, the average temperature is 14°C (57°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as -2°C (29°F). Be prepared for a wide range of temperatures when traveling during this time.

May Weather in Winthrop: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Winthrop, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winthrop, May typically has an average temperature of 14°C (57°F), with highs reaching up to 35°C (95°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec202330445765716961503526
Data source: Temperature data for Winthrop 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 Winthrop

In Winthrop in May, the total precipitation amount is 110 mm (4.3 in) over the course of 13 days.

May Precipitation Trends in Winthrop

The chart displays monthly precipitation patterns in Winthrop, 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 Winthrop, May typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec9086911231101041191077314811688
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Winthrop

In Winthrop in May, humidity is 80%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making travel uncomfortable and sticky, as sweat clings to your skin and the air feels heavy with moisture.

May Average Humidity in Winthrop

This chart illustrates the average monthly humidity levels in Winthrop, 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 Winthrop is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Winthrop

In Winthrop 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 Winthrop.

Maximum UV Index Levels in Winthrop for May

The chart shows the monthly maximum UV Index (UVI) for Winthrop 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 Winthrop typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Winthrop 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 Winthrop Compares to Other Months

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

This table compares monthly weather conditions in Winthrop, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)90 mm (3.6 inches)93%low
February Weather-5°C (23°F)86 mm (3.4 inches)92%moderate
March Weather-1°C (31°F)91 mm (3.6 inches)86%moderate
April Weather6°C (44°F)123 mm (4.8 inches)85%very high
May Weather14°C (57°F)110 mm (4.3 inches)80%very high
June Weather19°C (66°F)104 mm (4.1 inches)74%very high
July Weather22°C (71°F)119 mm (4.7 inches)76%very high
August Weather20°C (69°F)107 mm (4.2 inches)75%very high
September Weather16°C (61°F)73 mm (2.9 inches)78%high
October Weather10°C (51°F)148 mm (5.8 inches)86%moderate
November Weather2°C (35°F)116 mm (4.6 inches)88%moderate
December Weather-3°C (26°F)88 mm (3.5 inches)89%low

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