May weather forecastHamilton, OH
May
Weather in May
As May dawns, the weather in Hamilton, Ohio, transforms completely. Post the cool spell of April, the temperatures continue climbing higher, indicating the onset of summer. Rainfall amounts peak at this time of the year, measuring at 2.99" (76mm). The daylight hours significantly increase, paving the way for longer sunlit days. Hamilton residents start prepping for the forthcoming summer season, basking in the warm, pleasant ambiance that May brings along.Temperature
May's onset brings a temperature rise, moving from an enjoyable 62.6°F (17°C) in April to an agreeable 72.5°F (22.5°C). Hamilton observes an average low-temperature of 55.8°F (13.2°C) during May nights.Humidity
In Hamilton, Ohio, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall in Hamilton. Rain falls for 18.1 days and accumulates 2.99" (76mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Hamilton, the average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 6:38 am and sunset at 8:32 pm. On the last day of May, sunrise is at 6:13 am and sunset at 8:58 pm EDT.
Sunshine
In Hamilton, the average sunshine in May is 9h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 6 during May translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hamilton, OH
- Average high temperature in May: 72.5°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: 55.8°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in May
Hamilton, OH
- Average pressure in May: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Hamilton, OH
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in May
Hamilton, OH
- Average humidity in May: 79%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Hamilton, OH
- Average rainfall in May: 2.99"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in May
Hamilton, OH
- Average rainfall days in May: 18.1 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in May
Hamilton, OH
- Average snowfall in May: 0"
The months with the highest snowfall are February and March (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Hamilton, OH
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.1 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
Hamilton, OH
- Average daylight in May: 14h and 24min
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 24min).
- Average sunshine in May: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Hamilton, OH
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in May
Hamilton, OH
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Hamilton, OH
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Hamilton, OH
- 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).
