May weather forecastHarrington, DE
May
Weather in May
In May, the weather begins to heat up in Harrington, reaching an average temperature of 70.9°F (21.6°C). The month experiences the highest rainfall of 3.11" (79mm) indicating the onset of the humid summer season. However, this increase in rainfall comes with an extended daily sunshine span making it lively and vibrant. Whether intending a visit or planning various activities, May offers an enjoyable time while also ushering in the approaching summer.Temperature
With the onset of May, the average high-temperature slightly shifts from April's refreshing 61.5°F (16.4°C) to an agreeable 70.9°F (21.6°C). Harrington reports an average low-temperature of 56.7°F (13.7°C) during the nights of May.Humidity
May, August and September, with an average relative humidity of 79%, are the most humid months in Harrington.Rainfall
In Harrington, Delaware, during May, the rain falls for 17.8 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Harrington, during the entire year, the rain falls for 167.5 days and collects up to 35.35" (898mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Harrington, the average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 6:03 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:38 am and sunset at 8:21 pm EDT.
Sunshine
The average sunshine in May is 8.8h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in May transforms into the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. 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. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Harrington, DE
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in May: 56.7°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in May
Harrington, 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
Harrington, DE
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in May
Harrington, DE
- Average humidity in May: 79%
The months with the highest relative humidity are May, August and September (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in May
Harrington, DE
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in May
Harrington, DE
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9 days).
Average snowfall in May
Harrington, DE
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Harrington, DE
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Harrington, DE
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 48min
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 54min).
Average sunshine days in May
Harrington, DE
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in May
Harrington, 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
Harrington, DE
- Average cloud cover in May: 43
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Harrington, 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).
