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
September
Weather in September
Temperature
The arrival of September correlates with a minor temperature reduction, down from August's moderately hot 24°C (75.2°F) to a pleasant 20.2°C (68.4°F). Leitrim experiences an average low-temperature of 10.1°C (50.2°F) in month of September.Humidity
In Leitrim, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 11.8 days. Throughout September, 44mm (1.73") of precipitation is accumulated. In Leitrim, during the entire year, the rain falls for 145.2 days and collects up to 616mm (24.25") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Leitrim, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:24 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:44 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 3 in September leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Leitrim?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Leitrim have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Leitrim, Canada
- Average high temperature in September: 20.2°C
The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-6.1°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is July (14.8°C).
The coldest month (with the lowest average low temperature) is January (-14°C).
Average pressure in September
Leitrim, Canada
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is March (1018mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in September
Leitrim, Canada
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is April (14.2km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in September
Leitrim, Canada
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Leitrim, Canada
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is October (65mm).
The driest month (with the least rainfall) is November (41mm).
Average rainfall days in September
Leitrim, Canada
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in September
Leitrim, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (189mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Leitrim, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Leitrim, Canada
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Leitrim, Canada
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in September
Leitrim, Canada
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Leitrim, Canada
- Average cloud cover in September: 36
The months with the most cloud cover are January and February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Leitrim, Canada
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August, October and November (9km).
The months with the lowest visibility are January and February (7km).
