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
The transition from April to May brings a temperature rise, with average high-temperatures increasing from a moderate 58.8°F (14.9°C) to an agreeable 70.3°F (21.3°C). May generally records an average low-temperature of 53.8°F (12.1°C).Humidity
The average relative humidity in May is 78%.Rainfall
The month with the most rainfall in Saint Johns is May, when the rain falls for 19.5 days and typically aggregates up to 3.74" (95mm) of precipitation.Snowfall
Months with snowfall in Saint Johns are January through May, October through December. May is the last month it regularly snows in Saint Johns. During 0.2 snowfall days, in May, Saint Johns aggregates 0.04" (1mm) of snow. In Saint Johns, during the entire year, snow falls for 49.6 days and aggregates up to 14.57" (370mm) of snow.Daylight
The average length of the day in May is 14h and 28min.On the first day of the month, sunrise is at 6:34 am and sunset at 8:32 pm. On the last day of May, in Saint Johns, Ohio, sunrise is at 6:07 am and sunset at 9:00 pm EDT.
Sunshine
The average sunshine in May is 8.7h.UV index
In Saint Johns, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. It's recommended to limit sun exposure when its radiation is at its peak during midday. Boost your sun resistance with garments that are densely woven yet spacious. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Saint Johns?
What is the average humidity in May in Saint Johns?
What is the rainiest month in Saint Johns?
How many days does it rain in May in Saint Johns?
What is the last month it snows in Saint Johns?
How many hours of daylight does Saint Johns have in May?
When are sunrise and sunset in May in Saint Johns?
How long on average sun shines in May in Saint Johns?
What is the UV index intensity in May in Saint Johns?
Average temperature in May
Saint Johns, OH
- Average high temperature in May: 70.3°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in May: 53.8°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in May
Saint Johns, OH
- Average pressure in May: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Saint Johns, OH
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Saint Johns, OH
- Average humidity in May: 78%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Saint Johns, OH
- Average rainfall in May: 3.74"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in May
Saint Johns, OH
- Average rainfall days in May: 19.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Saint Johns, OH
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint Johns, OH
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Johns, OH
- Average daylight in May: 14h and 3min
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 18min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Saint Johns, OH
- Average sunshine days in May: 9.3 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in May
Saint Johns, OH
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Saint Johns, OH
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Saint Johns, OH
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Saint Johns, Ohio, USA
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