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
With the beginning of May, Castine's average high-temperature sees an increase, transitioning from a refreshing 60.3°F (15.7°C) in April to an agreeable 70.7°F (21.5°C). May nights are marked by an average low-temperature of 54.5°F (12.5°C).Humidity
The average relative humidity in May is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 19.8 days and typically aggregates up to 4.17" (106mm) of precipitation.Snowfall
In Castine, snow does not fall in May through September.Daylight
In Castine, the average length of the day in May is 14h and 24min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:33 pm. On the last day of May, sunrise is at 6:11 am and sunset at 9:00 pm EDT.
Sunshine
The average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 5 in May transforms into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
What is the rainiest month?
How much 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 Castine?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
Castine, OH
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in May: 54.5°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 (20.3°F).
Average pressure in May
Castine, OH
- Average pressure in May: 29.97"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Castine, OH
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in May
Castine, OH
- Average humidity in May: 79%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Castine, OH
- Average rainfall in May: 4.17"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in May
Castine, OH
- Average rainfall days in May: 19.8 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in May
Castine, OH
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Castine, OH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Castine, OH
- Average daylight in May: 14h and 2min
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 24min).
- Average sunshine in May: 8h and 2min
The months with the most sunshine are June and July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Castine, OH
- Average sunshine days in May: 9.3 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in May
Castine, OH
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in May
Castine, OH
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Castine, OH
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Castine, Ohio, USA
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