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 77.5°F (25.3°C) to a pleasant 71.2°F (21.8°C). Middlesex, during the month of September, experiences an average low-temperature of 52°F (11.1°C).Humidity
In September, the average relative humidity in Middlesex is 79%.Rainfall
In Middlesex, in September, it is raining for 13.1 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, in Middlesex, there are 153.6 rainfall days, and 19.96" (507mm) of precipitation is accumulated.Snowfall
In Middlesex, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:43 pm. On the last day of September, in Middlesex, sunrise is at 7:06 am and sunset at 6:51 pm EDT.
Sunshine
The average sunshine in September in Middlesex is 9h.UV index
In Middlesex, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Middlesex?
What is the average humidity in September in Middlesex?
How many days does it rain in September in Middlesex?
When it does not snow in Middlesex?
Does it snow in Middlesex in September?
What is the average length of the day in September in Middlesex?
When are sunrise and sunset in September in Middlesex?
How many hours of sunshine does Middlesex have in September?
How high is the UV index in September in Middlesex?
Average temperature in September
Middlesex, NY
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Middlesex, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Middlesex, NY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Middlesex, NY
- Average humidity in September: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May, July and August (78%).
Average rainfall in September
Middlesex, NY
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Middlesex, NY
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
Middlesex, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Middlesex, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Middlesex, 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 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Middlesex, NY
- Average sunshine days in September: 14.4 days
The months with the most sunshine days are September and November (14.4 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in September
Middlesex, NY
- Average UV index in September: 3
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
Middlesex, NY
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Middlesex, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Middlesex, New York, USA
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