Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the start of September, Stone Allerton measures an average high-temperature of a still comfortable 17.3°C (63.1°F), not significantly differing from August's 18.9°C (66°F). An average low-temperature of 11°C (51.8°F) marks the month of September.Humidity
In September, the average relative humidity is 83%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 26mm (1.02") of precipitation is accumulated. Throughout the year, in Stone Allerton, there are 170.4 rainfall days, and 424mm (16.69") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Stone Allerton.Daylight
In September, the average length of the day in Stone Allerton is 12h and 38min.On the first day of September, sunrise is at 6:25 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:51 pm BST.
Sunshine
In Stone Allerton, the average sunshine in September is 7.4h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Make use of precautions - It is urged to ward off sun damage. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the temperature in September in Stone Allerton?
What is the average humidity in September in Stone Allerton?
How many days does it rain in September in Stone Allerton?
When it does not snow in Stone Allerton?
What is the average length of the day in September in Stone Allerton?
When are sunrise and sunset in September in Stone Allerton?
How many hours of sunshine does Stone Allerton have in September?
What is the month with the highest UV index in Stone Allerton?
What is the UV index intensity in September in Stone Allerton?
Average temperature in September
Stone Allerton, United Kingdom
- Average high temperature in September: 17.3°C
The warmest month (with the highest average high temperature) is July (19.3°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).
Average pressure in September
Stone Allerton, United Kingdom
- Average pressure in September: 1016.8mbar
The months with the highest atmospheric pressure are May and September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).
Average wind speed in September
Stone Allerton, United Kingdom
- Average wind speed in September: 15.4km/h
The windiest month (with the highest average wind speed) is February (21.1km/h).
The calmest months (with the lowest average wind speed) are June and July (14.4km/h).
Average humidity in September
Stone Allerton, United Kingdom
- Average humidity in September: 83%
The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are April, May and July (82%).
Average rainfall in September
Stone Allerton, United Kingdom
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (53mm).
The driest months (with the least rainfall) are April and May (25mm).
Average rainfall days in September
Stone Allerton, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is November (17.7 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Stone Allerton, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Stone Allerton, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Stone Allerton, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is July (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in September
Stone Allerton, United Kingdom
- Average sunshine days in September: 15 days
The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is November (9.2 days).
Average UV index in September
Stone Allerton, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Stone Allerton, United Kingdom
- Average cloud cover in September: 49
The month with the most cloud cover is November (Cloud cover 60).
The month with the least cloud cover is May (Cloud cover 46).
Average visibility in September
Stone Allerton, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Stone Allerton, United Kingdom
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