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 signifies a gentle decline in Hartford's average high-temperature, easing from a warm 75.6°F (24.2°C) in August to a pleasant 68°F (20°C). Throughout September nights, Hartford experiences a consistent temperature average of 47.3°F (8.5°C).Humidity
In Hartford, the average relative humidity in September is 79%.Rainfall
In Hartford, in September, it is raining for 11 days, with typically 1.89" (48mm) of accumulated precipitation. In Hartford, during the entire year, the rain falls for 146.3 days and collects up to 28.31" (719mm) of precipitation.Snowfall
June through September are months without snowfall in Hartford.Daylight
In September, the average length of the day is 12h and 30min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:17 pm. On the last day of September, in Hartford, sunrise is at 6:38 am and sunset at 6:23 pm EDT.
Sunshine
In Hartford, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are the temperatures in Hartford in September?
What is the average humidity in September in Hartford?
How much does it rain in Hartford in September?
When it does not snow in Hartford?
Does it snow in Hartford in September?
What is the average length of the day in September in Hartford?
When is the sunrise / sunset in September in Hartford?
How many hours of sunshine does Hartford have in September?
How high is the UV index in September in Hartford?
Average temperature in September
Hartford, ME
- Average high temperature in September: 68°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 47.3°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in September
Hartford, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Hartford, ME
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Hartford, ME
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and March (86%).
The months with the lowest relative humidity are May and November (76%).
Average rainfall in September
Hartford, ME
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is October (3.31").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in September
Hartford, ME
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Hartford, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (12.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hartford, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hartford, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Hartford, ME
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (11.3 days).
Average UV index in September
Hartford, ME
- 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 February and December (UV index 1).
Average cloud cover in September
Hartford, ME
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in September
Hartford, ME
- Average visibility in September: 4mi
The months with the highest visibility are May, June, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, July, August and September (4mi).
Hartford, Maine, USA
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