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
September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a warm 24°C (75.2°F) in August to an agreeable 20.2°C (68.4°F). An average low-temperature of 10.1°C (50.2°F) is recorded in the month of September.Humidity
In Leitrim, the average relative humidity in September is 80%.Rainfall
In Leitrim, during September, the rain falls for 11.8 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, in Leitrim, there are 145.2 rainfall days, and 616mm (24.25") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Leitrim, Canada.Daylight
In Leitrim, the average length of the day in September is 12h and 31min.On the first day of September in Leitrim, 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 Leitrim, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Leitrim is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To guard against the harmful effects of the Sun, minimize exposure during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the temperature in September in Leitrim?
What is the average humidity in September in Leitrim?
How many days does it rain in September in Leitrim?
When it does not snow in Leitrim?
Does it snow in Leitrim in September?
What is the average length of the day in September in Leitrim?
When are sunrise and sunset in September in Leitrim?
How long on average sun shines in September in Leitrim?
How high is the UV index in September in Leitrim?
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).
Leitrim, Canada
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