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May Weather in Lock Haven, United States

Last updated: June 24, 2025

In May, the average temperature in Lock Haven, United States is a mild 15°C (59°F). However, be prepared for a temperature swing; lows can drop to -3°C (27°F) while highs may reach a warm 31°C (87°F). With 136 mm (5.3 in) of precipitation spread over 16 days, the air is often quite humid, boasting an average humidity level of 80%.

May Temperature in Lock Haven

In May in Lock Haven, the average temperature is 15°C (59°F). The maximum can reach 31°C (87°F), and the minimum can be as low as -3°C (27°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

May Weather in Lock Haven: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Lock Haven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lock Haven, May typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (87°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec273037485967727164543933
Data source: Temperature data for Lock Haven 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 Lock Haven

In Lock Haven in May, the precipitation amount is 136 mm (5.3 in) distributed over 16 days.

May Precipitation Trends in Lock Haven

The chart displays monthly precipitation patterns in Lock Haven, 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 Lock Haven, May typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec72100861071361001391041161178691
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Lock Haven

In Lock Haven in May, humidity is 80%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly uncomfortable and necessitating frequent breaks to stay hydrated.

May Average Humidity in Lock Haven

This chart illustrates the average monthly humidity levels in Lock Haven, 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 Lock Haven is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Lock Haven

In Lock Haven in May, 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 Lock Haven.

Maximum UV Index Levels in Lock Haven for May

The chart shows the monthly maximum UV Index (UVI) for Lock Haven 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 Lock Haven typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Lock Haven 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 Lock Haven Compares to Other Months

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

This table compares monthly weather conditions in Lock Haven, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)72 mm (2.8 inches)89%moderate
February Weather-1°C (30°F)100 mm (3.9 inches)90%moderate
March Weather3°C (37°F)86 mm (3.4 inches)89%high
April Weather9°C (48°F)107 mm (4.2 inches)88%very high
May Weather15°C (59°F)136 mm (5.3 inches)80%very high
June Weather20°C (67°F)100 mm (3.9 inches)79%very high
July Weather22°C (73°F)139 mm (5.5 inches)74%very high
August Weather22°C (71°F)104 mm (4.1 inches)64%very high
September Weather18°C (64°F)116 mm (4.6 inches)67%very high
October Weather12°C (54°F)117 mm (4.6 inches)81%high
November Weather4°C (39°F)86 mm (3.4 inches)89%moderate
December Weather0°C (33°F)90 mm (3.6 inches)88%low

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