May weather forecast
Dauphin, PA

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Weather in May

May, the last month of the spring in Dauphin, is an agreeable month, with an average temperature varying between 50.9°F (10.5°C) and 70.2°F (21.2°C).

Temperature

In May, the average high-temperature increases from a moderate 59.7°F (15.4°C) in April to an agreeable 70.2°F (21.2°C). In Dauphin, an average nighttime temperature of 50.9°F (10.5°C) is expected during May.

Humidity

In May, the average relative humidity in Dauphin is 79%.

Rainfall

The month with the most rainfall in Dauphin is May, when the rain falls for 18.3 days and typically aggregates up to 3.15" (80mm) of precipitation.

Snowfall

Months with snowfall in Dauphin, Pennsylvania, are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Dauphin aggregates 0.2" (5mm) of snow. In Dauphin, during the entire year, snow falls for 28.8 days and aggregates up to 15.67" (398mm) of snow.

Daylight

The average length of the day in May is 14h and 26min.
On the first day of May, sunrise is at 6:05 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:31 pm EDT.

Sunshine

In Dauphin, Pennsylvania, the average sunshine in May is 8.4h.

UV index

May through July, with an average maximum UV index of 6, are months with the highest UV index in Dauphin. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In May, the maximum UV index of 6 suggests these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What are May temperatures in Dauphin?

In May, in Dauphin, the average high-temperature is 70.2°F (21.2°C), and the average low-temperature is 50.9°F (10.5°C).

What is the average humidity in May in Dauphin?

In Dauphin, Pennsylvania, the average relative humidity in May is 79%.

What is the rainiest month in Dauphin?

May is the month with the most rainfall in Dauphin, Pennsylvania. Rain falls for 18.3 days and accumulates 3.15" (80mm) of precipitation.

How many days does it rain in May in Dauphin?

In Dauphin, during May, the rain falls for 18.3 days and regularly aggregates up to 3.15" (80mm) of precipitation.

What is the last month it snows in Dauphin?

May is the last month it regularly snows in Dauphin. During 0.1 snowfall days, in May, Dauphin aggregates 0.2" (5mm) of snow.

What is the average length of the day in May in Dauphin?

The average day length in May is 14h and 26min.

When are sunrise and sunset in May in Dauphin?

In May, on the first day of the month, sunrise is at 6:05 am and sunset at 8:03 pm. On the last day of the month, in Dauphin, sunrise is at 5:39 am and sunset at 8:31 pm EDT.

How long on average sun shines in May in Dauphin?

The average sunshine duration in May in Dauphin is 8.4h.

What are the months with the highest UV index in Dauphin?

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

How high is the UV index in May in Dauphin?

In May, the average daily maximum UV index is 6. A UV Index value 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
Dauphin, PA

Average temperature in May - Dauphin, PA
  • Average high temperature in May: 70.2°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in May: 50.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in May
Dauphin, PA

Average pressure in May - Dauphin, 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 (29.95"Hg).

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Average wind speed in May
Dauphin, PA

Average wind speed in May - Dauphin, PA
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in May
Dauphin, PA

Average humidity in May - Dauphin, PA
  • Average humidity in May: 79%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).

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Average rainfall in May
Dauphin, PA

Average rainfall in May - Dauphin, PA
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in May
Dauphin, PA

Average rainfall days in May - Dauphin, PA
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (8.8 days).

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Average snowfall in May
Dauphin, PA

Average snowfall in May - Dauphin, PA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Dauphin, PA

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

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Dauphin, 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 2min

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 18min).

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Average sunshine days in May
Dauphin, PA

Average sunshine days in May - Dauphin, PA
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.4 days).

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Average UV index in May
Dauphin, PA

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

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

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Average cloud cover in May
Dauphin, PA

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

The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in May
Dauphin, PA

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

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

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Dauphin, Pennsylvania, USA

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