September weather forecastMcGrew, NE
September
Weather in September
The first month of the autumn, September, is still a warm month in McGrew, Nebraska, with an average temperature ranging between min 54.1°F (12.3°C) and max 77.5°F (25.3°C).Temperature
September's arrival subtly correlates with a reduction in the average high-temperature, down from a warm 85.5°F (29.7°C) in August to a still moderately hot 77.5°F (25.3°C). Despite a stark disparity with daily highs, McGrew records an average nighttime temperature of 54.1°F (12.3°C) in September.Humidity
The months with the lowest humidity in McGrew are August and September, with an average relative humidity of 47%.Rainfall
In McGrew, during September, the rain falls for 8.6 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, in McGrew, there are 110.2 rainfall days, and 14.8" (376mm) of precipitation is accumulated.Snowfall
Months with snowfall in McGrew are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. In McGrew, during the entire year, snow falls for 39.7 days and aggregates up to 17.36" (441mm) of snow.Daylight
In McGrew, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:26 pm. On the last day of September, in McGrew, sunrise is at 6:50 am and sunset at 6:36 pm MDT.
Sunshine
The average sunshine in September in McGrew is 10.5h.UV index
The average daily maximum UV index in September in McGrew, Nebraska, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
McGrew, NE
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in September
McGrew, NE
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
McGrew, NE
- Average wind speed in September: 9.9mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in September
McGrew, NE
- Average humidity in September: 47%
The month with the highest relative humidity is January (69%).
The months with the lowest relative humidity are August and September (47%).
Average rainfall in September
McGrew, NE
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
McGrew, NE
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is December (3.5 days).
Average snowfall in September
McGrew, NE
- Average snowfall in September: 0.08"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
McGrew, NE
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
McGrew, NE
- 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: 10h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in September
McGrew, NE
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
McGrew, NE
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
McGrew, NE
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
McGrew, NE
- 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).
