September weather forecastGarrison, NE
September
Weather in September
The first month of the autumn, September, is still a warm month in Garrison, Nebraska, with an average temperature fluctuating between 56.7°F (13.7°C) and 76.8°F (24.9°C).Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a moderately hot 83.5°F (28.6°C) in August to a still warm 76.8°F (24.9°C). In the month of September, an average of 56.7°F (13.7°C) marks the low-temperature.Humidity
In September, the average relative humidity is 69%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. In Garrison, during the entire year, the rain falls for 112.4 days and collects up to 18.62" (473mm) of precipitation.Snowfall
In Garrison, snow does not fall in June through September.Daylight
In Garrison, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:55 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:11 pm CDT.
Sunshine
In Garrison, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Garrison, NE
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Garrison, NE
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Garrison, NE
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in September
Garrison, NE
- Average humidity in September: 69%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is October (64%).
Average rainfall in September
Garrison, NE
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Garrison, NE
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Garrison, NE
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Garrison, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Garrison, 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: 8h and 54min
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 6min).
Average sunshine days in September
Garrison, NE
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in September
Garrison, 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
Garrison, NE
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Garrison, 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).





