September weather forecastGrainton, NE
September
Weather in September
September, the first month of the autumn in Grainton, is also a moderately hot month, with an average temperature ranging between max 80.1°F (26.7°C) and min 57.4°F (14.1°C).Temperature
In Grainton, the average high-temperature in September gently drops from a tropical 86.9°F (30.5°C) in August to a warm 80.1°F (26.7°C). Grainton's temperature in September declines substantially from daytime highs, settling at a consistent average of 57.4°F (14.1°C) during the nights.Humidity
The least humid month is September, with an average relative humidity of 52%.Rainfall
In September, in Grainton, the rain falls for 6.3 days. Throughout September, 0.35" (9mm) of precipitation is accumulated. In Grainton, during the entire year, the rain falls for 77.8 days and collects up to 6.93" (176mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:28 pm MDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In September, the average daily maximum UV index is 5. 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 UV index, 5 during September, leads to the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grainton, NE
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is December (39°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Grainton, NE
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
Grainton, NE
- Average wind speed in September: 10.5mph
The windiest month (with the highest average wind speed) is April (12.5mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in September
Grainton, NE
- Average humidity in September: 52%
The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is September (52%).
Average rainfall in September
Grainton, NE
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is December (0.16").
Average rainfall days in September
Grainton, NE
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is November (1.9 days).
Average snowfall in September
Grainton, NE
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grainton, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grainton, NE
- 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 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in September
Grainton, NE
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is November (25.6 days).
The month with the least sunshine days is May (15.6 days).
Average UV index in September
Grainton, NE
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Grainton, NE
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 36).
The months with the least cloud cover are August and September (Cloud cover 20).
Average visibility in September
Grainton, 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).
