May weather forecastMiddletown, PA
May
Weather in May
May, the last month of the spring in Middletown, is an agreeable month, with an average temperature ranging between min 51.4°F (10.8°C) and max 70.2°F (21.2°C).Temperature
May brings a temperature change, with average high-temperatures moving from April's mild 59.9°F (15.5°C) to an agreeable 70.2°F (21.2°C). Throughout the month of May, Middletown observes an average nighttime temperature of 51.4°F (10.8°C).Humidity
February, May and October, with an average relative humidity of 80%, are the most humid months.Rainfall
In Middletown, in May, it is raining for 17.6 days, with typically 3.19" (81mm) of accumulated precipitation. In Middletown, during the entire year, the rain falls for 160.1 days and collects up to 30.75" (781mm) 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, Middletown aggregates 0.16" (4mm) of snow. Throughout the year, there are 21.1 snowfall days, and 11.06" (281mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 25min.On the first day of May, sunrise is at 6:05 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:29 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
May through July, with an average maximum UV index of 6, are months with the highest UV index in Middletown. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In May, an average UV index of 6 transforms into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Middletown, PA
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in May
Middletown, 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
Middletown, PA
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are February and March (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Middletown, PA
- Average humidity in May: 80%
The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Middletown, PA
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is August (3.46").
The driest months (with the least rainfall) are January and February (1.97").
Average rainfall days in May
Middletown, PA
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Middletown, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Middletown, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Middletown, 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 30min
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 36min).
Average sunshine days in May
Middletown, PA
- Average sunshine days in May: 11.1 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10 days).
Average UV index in May
Middletown, 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).
Average cloud cover in May
Middletown, PA
- Average cloud cover in May: 46
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Middletown, 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).





