May weather forecastOswego, NY
May
Weather in May
May continues the warming trend in Oswego, providing a pleasant prelude to the summer. The month is devoid of any snowfall while temperatures continue to rise steadily, and it starts to rain more frequently. Peak temperatures average around 56.8°F (13.8°C), a sure sign that summer is just around the corner. May also enjoys the second highest daylight hours with 14.7 hours, allowing plenty of sunshine to permeate the city. As such, May encapsulates rather comfortable and moderate climatic patterns.Temperature
May's onset is marked by a temperature increase, moving from a frosty 47.1°F (8.4°C) in April to a moderate 56.8°F (13.8°C). In Oswego, May nights maintain a consistent temperature, with an average low of 48°F (8.9°C).Humidity
In May, the average relative humidity is 82%.Rainfall
May is the month with the most rainfall. Rain falls for 16.6 days and accumulates 4.37" (111mm) of precipitation.Snowfall
May through September are months without snowfall.Ocean temperature
In Oswego, the average seawater temperature in May is 42.6°F (5.9°C).Note: Danger awaits those who swim in 42.6°F (5.9°C) without protection. Falling below 50°F (10°C) means intense cold shock and hyperventilation.
Daylight
In Oswego, the average length of the day in May is 14h and 43min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:08 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:39 pm EDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 4 during May leads to these advisories:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Oswego, NY
- Average high temperature in May: 56.8°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 48°F
The months with the highest average low temperature are July and August (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in May
Oswego, NY
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Oswego, NY
- Average wind speed in May: 9.6mph
The windiest month (with the highest average wind speed) is January (15mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in May
Oswego, NY
- Average humidity in May: 82%
The month with the highest relative humidity is June (83%).
The months with the lowest relative humidity are September and November (75%).
Average rainfall in May
Oswego, NY
- Average rainfall in May: 4.37"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (2.2").
Average rainfall days in May
Oswego, NY
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (6 days).
Average snowfall in May
Oswego, NY
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Oswego, NY
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Oswego, NY
- Average sea temperature in May: 42.6°F
The best month for swimming (with the highest average sea temperature) is August (73.2°F).
The coldest month (with the lowest average sea temperature) is March (35.4°F).
Average daylight in May /
Average sunshine in May
Oswego, NY
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in May
Oswego, NY
- Average sunshine days in May: 13.1 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in May
Oswego, NY
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Oswego, NY
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in May
Oswego, NY
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
