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
The start of May brings a rise in the average high-temperature, moving from a refreshing 56.5°F (13.6°C) in April to an agreeable 68.4°F (20.2°C). Stillwater, in May, experiences an average temperature of 48.7°F (9.3°C) at night.Humidity
In May, the average relative humidity in Stillwater is 80%.Rainfall
The wettest months in Stillwater, Pennsylvania, are April and May, with an average 2.99" (76mm) of rainfall.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Stillwater. During 0.3 snowfall days, in May, Stillwater aggregates 0.28" (7mm) of snow. Throughout the year, in Stillwater, Pennsylvania, there are 47.6 snowfall days, and 22.91" (582mm) of snow is accumulated.Daylight
In May, the average length of the day in Stillwater is 14h and 31min.On the first day of May in Stillwater, sunrise is at 6:02 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:31 pm EDT.
Sunshine
In Stillwater, the average sunshine in May is 8.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during May translates into these guidelines:
Take precautions - Protection against sunburn is recommended. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are May temperatures in Stillwater?
What is the average humidity in May in Stillwater?
What is the rainiest month in Stillwater?
How many days does it rain in May in Stillwater?
What is the last month it snows in Stillwater?
What is the average length of the day in May in Stillwater?
What time are sunrise and sunset in May in Stillwater?
How many hours of sunshine does Stillwater have in May?
What are the months with the highest UV index in Stillwater?
How high is the UV index in May in Stillwater?
Average temperature in May
Stillwater, PA
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in May
Stillwater, 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
Stillwater, PA
- Average wind speed in May: 6.4mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Stillwater, PA
- Average humidity in May: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Stillwater, PA
- Average rainfall in May: 2.99"
The wettest months (with the highest rainfall) are April and May (2.99").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in May
Stillwater, PA
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in May
Stillwater, PA
- Average snowfall in May: 0.28"
The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Stillwater, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Stillwater, PA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
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 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in May
Stillwater, PA
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in May
Stillwater, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Stillwater, PA
- Average cloud cover in May: 49
The months with the most cloud cover are February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in May
Stillwater, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Stillwater, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
