September weather forecastMcCool Junction, NE
September
Weather in September
September, the first month of the autumn in McCool Junction, is also a moderately hot month, with an average temperature fluctuating between 77.4°F (25.2°C) and 56.7°F (13.7°C).Temperature
In McCool Junction, the average high-temperature in September slightly decreases from a warm 83.8°F (28.8°C) in August to a still moderately hot 77.4°F (25.2°C). McCool Junction's average low-temperature is measured at a moderate 56.7°F (13.7°C) during September.Humidity
In September, the average relative humidity is 68%.Rainfall
In McCool Junction, in September, it is raining for 10.5 days, with typically 1.42" (36mm) of accumulated precipitation. In McCool Junction, during the entire year, the rain falls for 117.1 days and collects up to 20.63" (524mm) of precipitation.Snowfall
June through September are months without snowfall in McCool Junction.Daylight
In McCool Junction, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:58 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:13 pm CDT.
Sunshine
The average sunshine in September in McCool Junction is 8.7h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Take precautions - Protection against sunburn is recommended. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
McCool Junction, NE
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
McCool Junction, NE
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
McCool Junction, NE
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in September
McCool Junction, NE
- Average humidity in September: 68%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is October (62%).
Average rainfall in September
McCool Junction, NE
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is May (3.62").
The driest months (with the least rainfall) are January and November (0.75").
Average rainfall days in September
McCool Junction, NE
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
McCool Junction, NE
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
McCool Junction, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
McCool Junction, NE
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in September
McCool Junction, NE
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in September
McCool Junction, NE
- Average UV index in September: 5
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
McCool Junction, NE
- Average cloud cover in September: 27
The months with the most cloud cover are January, February and March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
McCool Junction, 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).





