September weather forecastManhattan, NV
September
Weather in September
September, the first month of the autumn in Manhattan, is still a warm month, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 59.4°F (15.2°C).Temperature
The start of September involves a subtle temperature drop, shifting from a moderately hot 85.6°F (29.8°C) in August to a still warm 77.9°F (25.5°C). In the month of September, Manhattan witnesses a consistent average low-temperature of 59.4°F (15.2°C).Humidity
In Manhattan, the average relative humidity in September is 25%.Rainfall
In Manhattan, in September, it is raining for 3 days, with typically 0.24" (6mm) of accumulated precipitation. In Manhattan, during the entire year, the rain falls for 47.7 days and collects up to 4.96" (126mm) of precipitation.Snowfall
In Manhattan, snow does not fall in May through October.Daylight
In Manhattan, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:18 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:32 pm PDT.
Sunshine
In Manhattan, the average sunshine in September is 10.7h.UV index
In Manhattan, Nevada, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 5 in September transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Manhattan, NV
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is December (40.1°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure in September
Manhattan, NV
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Manhattan, NV
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is January (6.5mph).
Average humidity in September
Manhattan, NV
- Average humidity in September: 25%
The months with the highest relative humidity are January and December (60%).
The month with the lowest relative humidity is August (20%).
Average rainfall in September
Manhattan, NV
- Average rainfall in September: 0.24"
The wettest months (with the highest rainfall) are March and May (0.71").
The driest month (with the least rainfall) is August (0.08").
Average rainfall days in September
Manhattan, NV
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in September
Manhattan, NV
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Manhattan, NV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Manhattan, NV
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 42min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in September
Manhattan, NV
- Average sunshine days in September: 26.5 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (20.8 days).
Average UV index in September
Manhattan, NV
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Manhattan, NV
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 24).
The months with the least cloud cover are August and September (Cloud cover 7).
Average visibility in September
Manhattan, NV
- 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).
