Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset witnesses a shift in the average high-temperature, moving from a refreshing 57.2°F (14°C) in April to an agreeable 68.2°F (20.1°C). In Helfenstein, the nighttime temperature averages to a chilly 49.3°F (9.6°C) during May.Humidity
The average relative humidity in May is 81%.Rainfall
The wettest months are May and July, with an average 1.97" (50mm) of rainfall.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Helfenstein aggregates 0.12" (3mm) of snow. In Helfenstein, during the entire year, snow falls for 28.6 days and aggregates up to 9.37" (238mm) of snow.Daylight
The average length of the day in May in Helfenstein is 14h and 28min.On the first day of May in Helfenstein, sunrise is at 6:03 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:30 pm EDT.
Sunshine
In Helfenstein, the average sunshine in May is 8.2h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the usual temperature for Helfenstein in May?
What is the average humidity in May in Helfenstein?
What is the rainiest month in Helfenstein?
How much does it rain in Helfenstein in May?
What is the last month it snows in Helfenstein?
How many hours of daylight does Helfenstein have in May?
When is the sunrise / sunset in May in Helfenstein?
How long on average sun shines in May in Helfenstein?
What is the UV index reading in May in Helfenstein?
Average temperature in May
Helfenstein, PA
- Average high temperature in May: 68.2°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in May: 49.3°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
Helfenstein, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Helfenstein, PA
- Average wind speed in May: 6.4mph
The windiest months (with the highest average wind speed) are March and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Helfenstein, PA
- Average humidity in May: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (77%).
Average rainfall in May
Helfenstein, PA
- Average rainfall in May: 1.97"
The wettest months (with the highest rainfall) are May and July (1.97").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in May
Helfenstein, PA
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in May
Helfenstein, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Helfenstein, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Helfenstein, PA
- Average daylight in May: 14h and 3min
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 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Helfenstein, PA
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in May
Helfenstein, PA
- Average UV index in May: 5
The month with the highest UV index is June (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
Helfenstein, PA
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Helfenstein, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).
Helfenstein, Pennsylvania, USA
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