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 moderately hot 79.3°F (26.3°C) to a pleasant 71.4°F (21.9°C). During September in Rensselaer, New York, the average low-temperature is recorded at a fresh 51.3°F (10.7°C).Humidity
The average relative humidity in September in Rensselaer is 78%.Rainfall
The month with the least rainfall in Rensselaer, New York, is September, when the rain falls for 10.7 days and typically collects 1.93" (49mm) of precipitation.Snowfall
In Rensselaer, snow does not fall in June through September.Daylight
In Rensselaer, the average length of the day in September is 12h and 29min.On the first day of September in Rensselaer, sunrise is at 6:20 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:37 pm EDT.
Sunshine
In September, the average sunshine in Rensselaer is 9.1h.UV index
In Rensselaer, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 during September translates into the following guidance:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What is the temperature in September in Rensselaer?
What is the average humidity in September in Rensselaer?
What is the driest month in Rensselaer?
How much does it rain in Rensselaer in September?
When it does not snow in Rensselaer?
Does it snow in Rensselaer in September?
How many hours of daylight does Rensselaer have in September?
What time are sunrise and sunset in September in Rensselaer?
How long on average sun shines in September in Rensselaer?
What is the UV index intensity in September in Rensselaer?
Average temperature in September
Rensselaer, NY
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in September: 51.3°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 (16.7°F).
Average pressure in September
Rensselaer, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Rensselaer, NY
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Rensselaer, NY
- Average humidity in September: 78%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Rensselaer, NY
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Rensselaer, NY
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Rensselaer, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rensselaer, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rensselaer, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Rensselaer, NY
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is April (10.6 days).
Average UV index in September
Rensselaer, NY
- Average UV index in September: 3
The months with the highest UV index are May, 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
Rensselaer, NY
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Rensselaer, NY
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, March, August and September (5mi).
Rensselaer, New York, USA
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