September weather forecastElmhurst, NY
September
Weather in September
The first month of the autumn, September, is still a warm month in Elmhurst, New York, with an average temperature varying between 74.3°F (23.5°C) and 62.6°F (17°C).Temperature
With the arrival of September, Elmhurst notices a mild change in the average high-temperature, sliding from August's 81.3°F (27.4°C) to a still warm 74.3°F (23.5°C). Elmhurst's nighttime temperature in September falls to an average of 62.6°F (17°C).Humidity
In September, the average relative humidity is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 6.6 days and accumulates 0.2" (5mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Elmhurst, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:38 pm EDT.
Sunshine
In Elmhurst, the average sunshine in September is 9h.UV index
In Elmhurst, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during September leads to these advisories:
Put precautions into practice - Protective measures against sun-induced damage are advised. Around midday, solar radiation is most harmful; hence, exposure should be limited. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Elmhurst, NY
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in September
Elmhurst, 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
Elmhurst, NY
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Elmhurst, NY
- Average humidity in September: 73%
The months with the highest relative humidity are February, May and December (75%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Elmhurst, NY
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in September
Elmhurst, NY
- Average rainfall days in September: 6.6 days
The month with the highest number of rainy days is July (9.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Elmhurst, NY
- Average snowfall in September: 0"
The months with the highest snowfall are February, March and December (0.16").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Elmhurst, NY
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Elmhurst, NY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Elmhurst, NY
- Average sunshine days in September: 21.5 days
The months with the most sunshine days are January and December (24 days).
The month with the least sunshine days is June (17.8 days).
Average UV index in September
Elmhurst, NY
- Average UV index in September: 5
The months with the highest UV index are May, 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
Elmhurst, NY
- Average cloud cover in September: 33
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in September
Elmhurst, NY
- 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).
