September weather forecastMontello, NV
September
Weather in September
September, the first month of the autumn in Montello, is also a moderately hot month, with an average temperature ranging between min 60.4°F (15.8°C) and max 77.9°F (25.5°C).Temperature
The onset of September coincides with a reduction in the average high-temperature, falling from a tropical 88.3°F (31.3°C) in August to a moderately hot 77.9°F (25.5°C). During September nights, Montello witnesses a consistent average temperature of 60.4°F (15.8°C).Humidity
In September, the average relative humidity is 29%.Rainfall
In September, the rain falls for 6.8 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Montello, Nevada, there are 92 rainfall days, and 6.97" (177mm) of precipitation is accumulated.Snowfall
In Montello, snow does not fall in May through September.Daylight
In Montello, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:08 pm. On the last day of September, sunrise is at 6:33 am and sunset at 6:19 pm PDT.
Sunshine
The average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September in Montello is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Make use of precautions - It is urged to ward off sun damage. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Montello, NV
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is December (34.5°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Montello, NV
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Montello, NV
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in September
Montello, NV
- Average humidity in September: 29%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (23%).
Average rainfall in September
Montello, NV
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is April (0.94").
The driest months (with the least rainfall) are June and August (0.35").
Average rainfall days in September
Montello, NV
- Average rainfall days in September: 6.8 days
The month with the highest number of rainy days is April (13 days).
The month with the least rainy days is November (4.4 days).
Average snowfall in September
Montello, NV
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.7").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Montello, NV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Montello, NV
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 24min).
Average sunshine days in September
Montello, NV
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is October (22.9 days).
The month with the least sunshine days is April (14.2 days).
Average UV index in September
Montello, NV
- Average UV index in September: 5
The months with the highest UV index are June and 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
Montello, NV
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Montello, 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).





