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 ushers in a minute temperature change, with average high-temperatures reducing from August's warm 79.3°F (26.3°C) to an agreeable 72.5°F (22.5°C). An average nighttime temperature of 58.1°F (14.5°C) is noted during the month of September.Humidity
In Exeter, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall in Exeter, Rhode Island, is September, when the rain falls for 10.2 days and typically collects 0.98" (25mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September in Exeter, sunrise is at 6:12 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:29 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What are the temperatures in Exeter in September?
What is the average humidity in September in Exeter?
What is the driest month in Exeter?
How many days does it rain in September in Exeter?
When it does not snow in Exeter?
How many hours of daylight does Exeter have in September?
What time are sunrise and sunset in September in Exeter?
How long on average sun shines in September in Exeter?
What is the UV index reading in September in Exeter?
Average temperature in September
Exeter, RI
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Exeter, RI
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Exeter, RI
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in September
Exeter, RI
- Average humidity in September: 78%
The month with the highest relative humidity is June (81%).
The months with the lowest relative humidity are March and April (73%).
Average rainfall in September
Exeter, RI
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in September
Exeter, RI
- Average rainfall days in September: 10.2 days
The months with the highest number of rainy days are April and July (14.5 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in September
Exeter, RI
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.97").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Exeter, RI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Exeter, RI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Exeter, RI
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is April (13.7 days).
Average UV index in September
Exeter, RI
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Exeter, RI
- Average cloud cover in September: 34
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Exeter, RI
- 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).
Exeter, Rhode Island, USA
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