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 83.1°F (28.4°C) to a still warm 75.2°F (24°C). Contrasted against daytime highs, Reno records an average nighttime low of 49.3°F (9.6°C) in September.Humidity
The average relative humidity in September is 34%.Rainfall
In Reno, in September, it is raining for 3.5 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, there are 78.7 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 33.8 snowfall days, and 23.94" (608mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:42 pm PDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
In Reno, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Reno have in September?
What is the UV index reading in September?
Average temperature in September
Reno, NV
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in September: 49.3°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in September
Reno, NV
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Reno, NV
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (5mph).
Average humidity in September
Reno, NV
- Average humidity in September: 34%
The month with the highest relative humidity is January (73%).
The months with the lowest relative humidity are July and August (28%).
Average rainfall in September
Reno, NV
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is March (1.42").
The driest month (with the least rainfall) is August (0.16").
Average rainfall days in September
Reno, NV
- Average rainfall days in September: 3.5 days
The month with the highest number of rainy days is March (11.6 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in September
Reno, NV
- Average snowfall in September: 0.12"
The month with the highest snowfall is March (6.1").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Reno, NV
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (7.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Reno, NV
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Reno, NV
- Average sunshine days in September: 25.4 days
The month with the most sunshine days is October (26.3 days).
The month with the least sunshine days is March (15.7 days).
Average UV index in September
Reno, NV
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Reno, NV
- Average cloud cover in September: 10
The month with the most cloud cover is December (Cloud cover 34).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in September
Reno, 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).
Reno, Nevada, USA
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