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
As April transitions into May, a subtle temperature shift is observed, with average highs adjusting from a mild 59.9°F (15.5°C) to an agreeable 68.5°F (20.3°C). During May, an average low-temperature of 57.6°F (14.2°C) is observed in Harbeson.Humidity
May is the most humid month, with an average relative humidity of 80%.Rainfall
In Harbeson, in May, during 12.9 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 124.9 rainfall days, and 11.34" (288mm) of precipitation is accumulated.Snowfall
January through March, May, November and December are months with snowfall. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. In Harbeson, during the entire year, snow falls for 10.7 days and aggregates up to 1.97" (50mm) of snow.Daylight
The average length of the day in May in Harbeson is 14h and 18min.On the first day of May, sunrise is at 6:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:19 pm EDT.
Sunshine
The average sunshine in May is 9.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in May leads to these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the most humid month?
What is the average humidity in May?
How many days does it rain in May?
When does it start snowing?
How many hours of daylight does Harbeson have in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Harbeson, DE
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in May: 57.6°F
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in May
Harbeson, DE
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Harbeson, DE
- Average wind speed in May: 9mph
The windiest months (with the highest average wind speed) are January and February (10.8mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in May
Harbeson, DE
- Average humidity in May: 80%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in May
Harbeson, DE
- Average rainfall in May: 1.02"
The wettest month (with the highest rainfall) is August (1.38").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in May
Harbeson, DE
- Average rainfall days in May: 12.9 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in May
Harbeson, DE
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in May
Harbeson, DE
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Harbeson, DE
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in May
Harbeson, DE
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
Harbeson, DE
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in May
Harbeson, DE
- Average cloud cover in May: 39
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Harbeson, DE
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Harbeson, Delaware, USA
Weather forecast for your location
2. Allow the app to use your location