September weather forecastMcDermitt, NV
September
Weather in September
September in McDermitt, Nevada, marks the beginning of autumn. The ensuing changes in weather are evidenced by cooler temperatures and decreased daylight hours. Rainfall sees a slight uptick at 0.35" (9mm), yet fall remains relatively dry compared to spring. This shift from summertime heat towards cooler weather is welcomed with open arms. September paints McDermitt in fall colors, resulting in breathtaking landscapes.Temperature
McDermitt in September experiences a subtle temperature decline, with average high-temperatures reducing from a warm 85.6°F (29.8°C) in August to a still moderately hot 75.2°F (24°C). McDermitt, during the month of September, experiences an average low-temperature of 55.4°F (13°C).Humidity
The average relative humidity in September in McDermitt is 32%.Rainfall
In September, the rain falls for 4.7 days. Throughout September, 0.35" (9mm) of precipitation is accumulated. In McDermitt, during the entire year, the rain falls for 101.4 days and collects up to 10.08" (256mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in McDermitt is 12h and 28min.On the first day of the month, sunrise is at 7:17 am and sunset at 8:23 pm. On the last day of September, in McDermitt, sunrise is at 7:47 am and sunset at 7:33 pm MDT.
Sunshine
In McDermitt, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
McDermitt, NV
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is December (34.3°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure in September
McDermitt, NV
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.91"Hg).
Average wind speed in September
McDermitt, NV
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest months (with the lowest average wind speed) are January and August (6.3mph).
Average humidity in September
McDermitt, NV
- Average humidity in September: 32%
The months with the highest relative humidity are January and December (77%).
The months with the lowest relative humidity are July and August (25%).
Average rainfall in September
McDermitt, NV
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is March (1.46").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in September
McDermitt, NV
- Average rainfall days in September: 4.7 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is July (2.6 days).
Average snowfall in September
McDermitt, NV
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.34").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
McDermitt, NV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
McDermitt, NV
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 36min
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 0min).
Average sunshine days in September
McDermitt, NV
- Average sunshine days in September: 23.5 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in September
McDermitt, NV
- Average UV index in September: 4
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
McDermitt, NV
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in September
McDermitt, 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).





