May weather forecastHannastown, PA

May

Weather in May

The last month of the spring, May, is an agreeable month in Hannastown, Pennsylvania, with an average temperature ranging between min 50°F (10°C) and max 70.9°F (21.6°C).

Temperature

Hannastown in May shows a temperature shift, moving from an average high of a mild 59.5°F (15.3°C) in April to a pleasant 70.9°F (21.6°C). In Hannastown, May nights cool down to an average of 50°F (10°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 20.9 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Hannastown aggregates 0.12" (3mm) of snow. In Hannastown, during the entire year, snow falls for 63.3 days and aggregates up to 27.44" (697mm) of snow.

Daylight

In Hannastown, the average length of the day in May is 14h and 26min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:50 am and sunset at 8:41 pm EDT.

Sunshine

In May, the average sunshine is 8.8h.

UV index

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 5 translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.

Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in May, in Hannastown, is 70.9°F (21.6°C) and the average low-temperature is 50°F (10°C).

The average relative humidity in May is 79%.

The month with the most rainfall is May, when the rain falls for 20.9 days and typically aggregates up to 3.74" (95mm) of precipitation.

In Hannastown, Pennsylvania, in May, it is raining for 20.9 days, with typically 3.74" (95mm) of accumulated precipitation.

May is the last month it regularly snows in Hannastown. During 0.3 snowfall days, in May, Hannastown aggregates 0.12" (3mm) of snow.

In Hannastown, the average day length in May is 14h and 26min.

In May, on the first day of the month, sunrise is at 6:16 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:41 pm EDT.

The average sunshine duration in May is 8.8h.

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

59.5°F

70.9°F

77.4°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.6mph

7mph

6.4mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.1

7.9

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Hannastown, PA

Average high temperature in May: 70.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).

Average low temperature in May: 50°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in May
Hannastown, PA

Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in May
Hannastown, PA

Average wind speed in May: 6.4mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in May
Hannastown, PA

Average humidity in May: 79%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in May
Hannastown, PA

Average rainfall in May: 3.74"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.01").

Average rainfall days in May
Hannastown, PA

Average rainfall days in May: 20.9 days

The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in May
Hannastown, PA

Average snowfall in May: 0.12"

The month with the highest snowfall is January (6.65").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Hannastown, PA

Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May: 14h and 24min

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 24min).

Average sunshine in May: 8h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).