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
May's arrival signals a temperature shift, moving from a refreshing 64°F (17.8°C) in April to a warm 75°F (23.9°C). During the month of May, Rocky Hill experiences a steady low-temperature average of 54.1°F (12.3°C).Humidity
The average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall. Rain falls for 14.6 days and accumulates 1.57" (40mm) of precipitation.Snowfall
In Rocky Hill, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 6:31 am and sunset at 8:23 pm. On the last day of May, sunrise is at 6:06 am and sunset at 8:49 pm EDT.
Sunshine
In May, the average sunshine in Rocky Hill 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 of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 6 in May translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
What is the wettest month?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May in Rocky Hill?
What time are sunrise and sunset in May in Rocky Hill?
How many hours of sunshine does Rocky Hill have in May?
What are the months with the highest UV index?
How high is the UV index in May in Rocky Hill?
Average temperature in May
Rocky Hill, OH
- Average high temperature in May: 75°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in May
Rocky Hill, OH
- Average pressure in May: 30"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Rocky Hill, OH
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Rocky Hill, OH
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are August and September (75%).
Average rainfall in May
Rocky Hill, OH
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is May (1.57").
The driest months (with the least rainfall) are September and November (0.75").
Average rainfall days in May
Rocky Hill, OH
- Average rainfall days in May: 14.6 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in May
Rocky Hill, OH
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Rocky Hill, OH
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rocky Hill, OH
- Average daylight in May: 14h and 2min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Rocky Hill, OH
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in May
Rocky Hill, OH
- 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, February, November and December (UV index 2).
Average cloud cover in May
Rocky Hill, OH
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Rocky Hill, OH
- Average visibility in May: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).
Rocky Hill, Ohio, USA
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