Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The commencement of October in Old Greenwich involves a temperature shift, with the average high-temperature dropping from a pleasant 73.2°F (22.9°C) in September to a refreshing 62.4°F (16.9°C). October nights experience a consistent temperature drop to a fresh 52°F (11.1°C).Humidity
In Old Greenwich, Connecticut, the average relative humidity in October is 74%.Rainfall
In October, in Old Greenwich, Connecticut, the rain falls for 13.7 days. Throughout October, 3.46" (88mm) of precipitation is accumulated. Throughout the year, there are 166.6 rainfall days, and 38.07" (967mm) of precipitation is accumulated.Snowfall
In Old Greenwich, snow does not fall in May through October.Ocean temperature
In October, the average ocean temperature in Old Greenwich is 62.2°F (16.8°C).Note: For most people, a water temperature of 62.2°F (16.8°C) is not conducive to enjoyable swimming. Breathing control becomes harder as the water temperature dips below 69.8°F (21°C).
Daylight
The average length of the day in October in Old Greenwich is 11h and 6min.On the first day of the month, sunrise is at 6:51 am and sunset at 6:35 pm. On the last day of October, sunrise is at 7:24 am and sunset at 5:50 pm EDT.
Sunshine
The average sunshine in October in Old Greenwich is 5.8h.UV index
In October, the average daily maximum UV index in Old Greenwich is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 3 in October transforms into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are the temperatures in Old Greenwich in October?
What is the average humidity in October in Old Greenwich?
How many days does it rain in October in Old Greenwich?
When it does not snow in Old Greenwich?
Does it snow in Old Greenwich in October?
What is the ocean temperature in October in Old Greenwich?
How many hours of daylight does Old Greenwich have in October?
What time are sunrise and sunset in October in Old Greenwich?
How many hours of sunshine does Old Greenwich have in October?
How high is the UV index in October in Old Greenwich?
Average temperature in October
Old Greenwich, CT
- Average high temperature in October: 62.4°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in October: 52°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in October
Old Greenwich, CT
- Average pressure in October: 30.02"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
Old Greenwich, CT
- Average wind speed in October: 8.9mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in October
Old Greenwich, CT
- Average humidity in October: 74%
The months with the highest relative humidity are February, May, June and December (75%).
The month with the lowest relative humidity is August (71%).
Average rainfall in October
Old Greenwich, CT
- Average rainfall in October: 3.46"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is January (2.44").
Average rainfall days in October
Old Greenwich, CT
- Average rainfall days in October: 13.7 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in October
Old Greenwich, CT
- Average snowfall in October: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Old Greenwich, CT
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in October
Old Greenwich, CT
- Average sea temperature in October: 62.2°F
The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).
Average daylight in October /
Average sunshine in October
Old Greenwich, CT
- Average daylight in October: 11h and 1min
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 18min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in October
Old Greenwich, CT
- Average sunshine days in October: 15.2 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in October
Old Greenwich, 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
Old Greenwich, CT
- Average cloud cover in October: 42
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in October
Old Greenwich, CT
- Average visibility in October: 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).
Old Greenwich, Connecticut, USA
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