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
May
Weather in May
Temperature
The commencement of May notes an average high-temperature of a still refreshing 16.1°C (61°F), exhibiting little difference from the previous month. London Colney records an average nighttime low-temperature of 7.3°C (45.1°F) throughout May.Humidity
The average relative humidity in May is 80%.Rainfall
In London Colney, in May, during 14.3 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In London Colney, United Kingdom, during the entire year, the rain falls for 159.2 days and collects up to 359mm (14.13") of precipitation.Snowfall
In London Colney, snow does not fall in April through October.Daylight
In May, the average length of the day in London Colney is 15h and 40min.On the first day of the month, sunrise is at 5:30 am and sunset at 8:25 pm. On the last day of May, in London Colney, sunrise is at 4:48 am and sunset at 9:09 pm BST.
Sunshine
In May, the average sunshine in London Colney is 7.4h.UV index
In London Colney, the average daily maximum UV index in May is 4. 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 typical high UV index of 4 in May suggests the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for London Colney in May?
What is the average humidity in May in London Colney?
How much does it rain in London Colney in May?
When it does not snow in London Colney?
What is the average length of the day in May in London Colney?
When is the sunrise / sunset in May in London Colney?
How many hours of sunshine does London Colney have in May?
What is the UV index reading in May in London Colney?
Average temperature in May
London Colney, United Kingdom
- Average high temperature in May: 16.1°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in May: 7.3°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in May
London Colney, United Kingdom
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in May
London Colney, United Kingdom
- Average wind speed in May: 13.7km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in May
London Colney, United Kingdom
- Average humidity in May: 80%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (76%).
Average rainfall in May
London Colney, United Kingdom
- Average rainfall in May: 28mm
The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in May
London Colney, United Kingdom
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is September (10.7 days).
Average snowfall in May
London Colney, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is December (20mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
London Colney, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
London Colney, United Kingdom
- Average daylight in May: 15h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in May: 7h and 2min
The months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in May
London Colney, United Kingdom
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in May
London Colney, United Kingdom
- 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, November and December (UV index 2).
Average cloud cover in May
London Colney, United Kingdom
- Average cloud cover in May: 52
The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in May
London Colney, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
