May weather forecast
Tinicum, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Tinicum, Pennsylvania, with an average temperature fluctuating between 70.9°F (21.6°C) and 52.7°F (11.5°C).

Temperature

May's arrival brings a change in high-temperatures, moving from a refreshing 60.3°F (15.7°C) in April to a pleasant 70.9°F (21.6°C). Nightly temperatures drop to an average low of 52.7°F (11.5°C) in May.

Humidity

The average relative humidity in May is 77%.

Rainfall

In Tinicum, during May, the rain falls for 17.1 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Tinicum, during the entire year, the rain falls for 158.6 days and collects up to 28.31" (719mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Tinicum aggregates 0.24" (6mm) of snow. Throughout the year, there are 24.6 snowfall days, and 10.24" (260mm) of snow is accumulated.

Daylight

In Tinicum, the average length of the day in May is 14h and 27min.
On the first day of May, sunrise is at 5:58 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:24 pm EDT.

Sunshine

The average sunshine in May is 8.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, a regular UV index of 6 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

During May, Tinicum experiences an average high-temperature of 70.9°F (21.6°C) and a low-temperature of 52.7°F (11.5°C).

What is the average humidity in May?

In Tinicum, the average relative humidity in May is 77%.

How much does it rain in May?

In Tinicum, in May, during 17.1 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Tinicum aggregates 0.24" (6mm) of snow.

How many hours of daylight does Tinicum have in May?

The average day length in May in Tinicum is 14h and 27min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:24 pm EDT.

How many hours of sunshine does Tinicum have in May?

The average sunshine duration in May is 8.5h.

When is the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index reading in May?

In Tinicum, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Tinicum, PA

Average temperature in May - Tinicum, PA
  • Average high temperature in May: 70.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in May: 52.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in May
Tinicum, PA

Average pressure in May - Tinicum, PA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Tinicum, PA

Average wind speed in May - Tinicum, PA
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in May
Tinicum, PA

Average humidity in May - Tinicum, PA
  • Average humidity in May: 77%

The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in May
Tinicum, PA

Average rainfall in May - Tinicum, PA
  • Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in May
Tinicum, PA

Average rainfall days in May - Tinicum, PA
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in May
Tinicum, PA

Average snowfall in May - Tinicum, PA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Tinicum, PA

Average snowfall days in May - Tinicum, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Tinicum, PA

Average daylight in May / Average sunshine in May - Tinicum, PA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in May
Tinicum, PA

Average sunshine days in May - Tinicum, PA
  • Average sunshine days in May: 12.4 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11 days).

Average UV index in May
Tinicum, PA

Average UV index in May - Tinicum, PA
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May
Tinicum, PA

Average cloud cover in May - Tinicum, PA
  • Average cloud cover in May: 47

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in May
Tinicum, PA

Average visibility in May - Tinicum, PA
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Tinicum, Pennsylvania, USA

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