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
A modest decline in the average high-temperature is seen during September, decreasing from a warm 75.6°F (24.2°C) in August to an agreeable 68.7°F (20.4°C). An average temperature of 50.7°F (10.4°C) marks the nights in Penobscot, Maine, in September.Humidity
The average relative humidity in September in Penobscot, Maine, is 80%.Rainfall
In Penobscot, in September, it is raining for 10.5 days, with typically 1.57" (40mm) of accumulated precipitation. In Penobscot, during the entire year, the rain falls for 144.3 days and collects up to 24.61" (625mm) of precipitation.Snowfall
June through September are months without snowfall in Penobscot.Daylight
In September, the average length of the day is 12h and 30min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:10 pm. On the last day of September, sunrise is at 6:32 am and sunset at 6:16 pm EDT.
Sunshine
In Penobscot, the average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. When the Sun is at its strongest around midday, find shade and limit exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Penobscot?
What is the average humidity in September in Penobscot?
How much does it rain in Penobscot in September?
When it does not snow in Penobscot?
Does it snow in Penobscot in September?
What is the average length of the day in September in Penobscot?
When are sunrise and sunset in September in Penobscot?
How long on average sun shines in September in Penobscot?
How high is the UV index in September in Penobscot?
Average temperature in September
Penobscot, ME
- Average high temperature in September: 68.7°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in September
Penobscot, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Penobscot, ME
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Penobscot, ME
- Average humidity in September: 80%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and November (77%).
Average rainfall in September
Penobscot, ME
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is July (1.42").
Average rainfall days in September
Penobscot, ME
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Penobscot, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Penobscot, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Penobscot, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Penobscot, ME
- Average sunshine days in September: 18 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in September
Penobscot, ME
- Average UV index in September: 4
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, March, October, November and December (UV index 2).
Average cloud cover in September
Penobscot, ME
- Average cloud cover in September: 39
The months with the most cloud cover are February, March and April (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in September
Penobscot, ME
- Average visibility in September: 5mi
The months with the highest visibility are October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (5mi).
Penobscot, Maine, USA
Weather forecast for your location
2. Allow the app to use your location