October weather forecastPortland, CT
October
Weather in October
October, the same as September, is another enjoyable autumn month in Portland, Connecticut, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 47.1°F (8.4°C).Temperature
In October, the average high-temperature decreases from a moderately hot 73.6°F (23.1°C) in September to a comfortable 61.7°F (16.5°C). In the month of October, the average temperature dips to a frosty 47.1°F (8.4°C) during the night.Humidity
In October, the average relative humidity is 77%.Rainfall
In Portland, in October, during 14.2 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. In Portland, during the entire year, the rain falls for 162.2 days and collects up to 34.13" (867mm) of precipitation.Snowfall
In Portland, snow does not fall in June through October.Daylight
The average length of the day in October is 11h and 5min.On the first day of the month, sunrise is at 6:48 am and sunset at 6:31 pm. On the last day of October, sunrise is at 7:22 am and sunset at 5:46 pm EDT.
Sunshine
In October, the average sunshine is 5.9h.UV index
The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In October, the maximum UV index of 3 suggests this advice:
Take necessary precautions - Defending against sun damage is advocated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Portland, CT
- Average high temperature in October: 61.7°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in October: 47.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in October
Portland, CT
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Portland, CT
- Average wind speed in October: 7.1mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in October
Portland, CT
- Average humidity in October: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in October
Portland, CT
- Average rainfall in October: 3.27"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in October
Portland, CT
- Average rainfall days in October: 14.2 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in October
Portland, CT
- Average snowfall in October: 0"
The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in October
Portland, CT
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Portland, CT
- Average daylight in October: 11h and 6min
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 October: 5h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in October
Portland, CT
- Average sunshine days in October: 14.4 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in October
Portland, CT
- Average UV index in October: 3
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 October
Portland, CT
- Average cloud cover in October: 43
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in October
Portland, CT
- Average visibility in October: 6mi
The months with the highest visibility are January, March, April, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May, June and July (5mi).
