May weather forecastYellowknife, Canada
May
Weather in May
May ushers in the auspicious period of spring and above-zero temperatures in Yellowknife. The average high temperature eventually jumps into the positive zone with 9.8°C (49.6°F). The city exudes vibrancy as nature comes back to life from a prolonged slumber of frosty winters. The prolonged daylight hours of close to 18 hours paves the way for extended periods of outside leisure activities. With the last traces of snow fading away, the month becomes the harbinger of a warm summer ahead.Temperature
Yellowknife's transition into May marks a considerable rise in the average high-temperature, moving up from a freezing cold -2.5°C (27.5°F) in April to a chilly 9.8°C (49.6°F). In May, Yellowknife reports a consistent average low-temperature of 1.6°C (34.9°F) during the nights.Humidity
In May, the average relative humidity is 63%.Rainfall
In May, in Yellowknife, the rain falls for 5.9 days. Throughout May, 13mm (0.51") of precipitation is accumulated. In Yellowknife, during the entire year, the rain falls for 70.2 days and collects up to 207mm (8.15") of precipitation.Snowfall
Months with snowfall in Yellowknife, Canada, are January through May, September through December. May is the last month it regularly snows in Yellowknife, Canada. During 3.3 snowfall days, in May, Yellowknife aggregates 22mm (0.87") of snow. Throughout the year, in Yellowknife, there are 112.8 snowfall days, and 564mm (22.2") of snow is accumulated.Daylight
In Yellowknife, Canada, the average length of the day in May is 17h and 55min.On the first day of May in Yellowknife, Canada, sunrise is at 5:17 am and sunset at 9:51 pm. On the last day of the month, sunrise is at 3:58 am and sunset at 11:12 pm MDT.
Sunshine
In Yellowknife, the average sunshine in May is 10.2h.UV index
In Yellowknife, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 4 during May morphs into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Yellowknife, Canada
- Average high temperature in May: 9.8°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-18.8°C).
- Average low temperature in May: 1.6°C
The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is January (-25.2°C).
Average pressure in May
Yellowknife, Canada
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is February (1020.3mbar).
The month with the lowest atmospheric pressure is August (1009.9mbar).
Average wind speed in May
Yellowknife, Canada
- Average wind speed in May: 13.8km/h
The windiest month (with the highest average wind speed) is September (14.9km/h).
The calmest month (with the lowest average wind speed) is February (12.2km/h).
Average humidity in May
Yellowknife, Canada
- Average humidity in May: 63%
The month with the highest relative humidity is January (98%).
The month with the lowest relative humidity is June (52%).
Average rainfall in May
Yellowknife, Canada
- Average rainfall in May: 13mm
The wettest month (with the highest rainfall) is August (41mm).
The driest month (with the least rainfall) is February (4mm).
Average rainfall days in May
Yellowknife, Canada
- Average rainfall days in May: 5.9 days
The month with the highest number of rainy days is August (14.5 days).
The month with the least rainy days is February (0.3 days).
Average snowfall in May
Yellowknife, Canada
- Average snowfall in May: 22mm
The month with the highest snowfall is November (114mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in May
Yellowknife, Canada
- Average snowfall days in May: 3.3 days
The month with the highest number of snowfall days is November (20.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Yellowknife, Canada
- Average daylight in May: 17h and 54min
The month with the longest days is June (Average daylight: 19h and 48min).
The month with the shortest days is December (Average daylight: 5h and 12min).
- Average sunshine in May: 10h and 12min
The month with the most sunshine is June (Average sunshine: 13h and 6min).
The months with the least sunshine are January and December (Average sunshine: 1h and 0min).
Average sunshine days in May
Yellowknife, Canada
- Average sunshine days in May: 21.2 days
The month with the most sunshine days is May (21.2 days).
The month with the least sunshine days is November (11.5 days).
Average UV index in May
Yellowknife, Canada
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in May
Yellowknife, Canada
- Average cloud cover in May: 42
The months with the most cloud cover are January and December (Cloud cover 87).
The months with the least cloud cover are June and July (Cloud cover 37).
Average visibility in May
Yellowknife, Canada
- Average visibility in May: 10km
The months with the highest visibility are May, June and July (10km).
The months with the lowest visibility are January and February (5km).
