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
Noticing a change, the average high-temperature during May moves from April's cool 10°C (50°F) to a comfortable 17.8°C (64°F). Guelph's temperature drops to an average low of 7.6°C (45.7°F) during the nights of May.Humidity
April and May, with an average relative humidity of 76%, are the least humid months in Guelph.Rainfall
May is the month with the most rainfall in Guelph. Rain falls for 18.2 days and accumulates 75mm (2.95") of precipitation.Snowfall
January through May, October through December are months with snowfall in Guelph. May is the last month it regularly snows in Guelph, Canada. During 0.7 snowfall days, in May, Guelph aggregates 3mm (0.12") of snow. Throughout the year, there are 82 snowfall days, and 703mm (27.68") of snow is accumulated.Daylight
In May, the average length of the day is 14h and 44min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:23 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:54 pm EDT.
Sunshine
The average sunshine in May is 8.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Guelph. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What are the temperatures in Guelph in May?
What are the least humid months in Guelph?
What is the average humidity in May in Guelph?
What is the wettest month in Guelph?
How much does it rain in Guelph in May?
What is the last month it snows in Guelph?
How many hours of daylight does Guelph have in May?
When are sunrise and sunset in May in Guelph?
How long on average sun shines in May in Guelph?
What are the months with the highest UV index in Guelph?
What is the UV index reading in May in Guelph?
Average temperature in May
Guelph, Canada
- Average high temperature in May: 17.8°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in May: 7.6°C
The month with the highest average low temperature is July (15°C).
The coldest month (with the lowest average low temperature) is January (-9.4°C).
Average pressure in May
Guelph, Canada
- Average pressure in May: 1015.4mbar
The month with the highest atmospheric pressure is March (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.2mbar).
Average wind speed in May
Guelph, Canada
- Average wind speed in May: 13.4km/h
The windiest month (with the highest average wind speed) is January (17.6km/h).
The calmest month (with the lowest average wind speed) is July (10.8km/h).
Average humidity in May
Guelph, Canada
- Average humidity in May: 76%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in May
Guelph, Canada
- Average rainfall in May: 75mm
The wettest month (with the highest rainfall) is May (75mm).
The driest month (with the least rainfall) is September (41mm).
Average rainfall days in May
Guelph, Canada
- Average rainfall days in May: 18.2 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in May
Guelph, Canada
- Average snowfall in May: 3mm
The month with the highest snowfall is February (162mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Guelph, Canada
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (18.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Guelph, Canada
- Average daylight in May: 14h and 4min
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: 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: 2h and 36min).
Average sunshine days in May
Guelph, Canada
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is September (11.5 days).
The months with the least sunshine days are January and February (7.3 days).
Average UV index in May
Guelph, Canada
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
Guelph, Canada
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Guelph, Canada
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January, February, March, September, November and December (8km).
Guelph, Canada
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