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 shows an average high-temperature of an agreeable 69.4°F (20.8°C), hardly different from the previous month. During September, Hannibal experiences an average low-temperature of 57°F (13.9°C) at night.Humidity
The months with the lowest humidity in Hannibal are September and November, with an average relative humidity of 77%.Rainfall
In September, in Hannibal, the rain falls for 12.9 days. Throughout September, 1.22" (31mm) of precipitation is accumulated. In Hannibal, New York, during the entire year, the rain falls for 152.2 days and collects up to 19.69" (500mm) of precipitation.Snowfall
May through September are months without snowfall in Hannibal.Daylight
In Hannibal, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:40 pm. On the last day of September, in Hannibal, sunrise is at 7:03 am and sunset at 6:48 pm EDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the average September temperature in Hannibal?
What is the least humid month in Hannibal?
What is the average humidity in September in Hannibal?
How many days does it rain in September in Hannibal?
When it does not snow in Hannibal?
Does it snow in Hannibal in September?
What is the average length of the day in September in Hannibal?
When is the sunrise / sunset in September in Hannibal?
How long on average sun shines in September in Hannibal?
What is the UV index reading in September in Hannibal?
Average temperature in September
Hannibal, NY
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Hannibal, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Hannibal, NY
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in September
Hannibal, NY
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are September and November (77%).
Average rainfall in September
Hannibal, NY
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Hannibal, NY
- Average rainfall days in September: 12.9 days
The months with the highest number of rainy days are July and August (16.8 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
Hannibal, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Hannibal, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hannibal, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days in September
Hannibal, NY
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is February (7 days).
Average UV index in September
Hannibal, NY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Hannibal, NY
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Hannibal, NY
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hannibal, New York, USA
Weather forecast for your location
2. Allow the app to use your location
