Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature marginally drops from 84°F (28.9°C) in August to a still warm 77.9°F (25.5°C). During September nights, Johnson witnesses a consistent average temperature of 58.1°F (14.5°C).Humidity
In September, the average relative humidity is 72%.Rainfall
In Johnson, during September, the rain falls for 8.5 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 92 rainfall days, and 8.78" (223mm) of precipitation is accumulated.Snowfall
May 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 6:52 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:07 pm CDT.
Sunshine
In September, the average sunshine in Johnson is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. 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
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Johnson have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Johnson, NE
- Average high temperature in September: 77.9°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 (32.9°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in September
Johnson, NE
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Johnson, NE
- Average wind speed in September: 8.1mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in September
Johnson, NE
- Average humidity in September: 72%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Johnson, NE
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is June (1.46").
The driest month (with the least rainfall) is February (0.2").
Average rainfall days in September
Johnson, NE
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (12 days).
The month with the least rainy days is January (2.6 days).
Average snowfall in September
Johnson, NE
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Johnson, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Johnson, NE
- Average daylight in September: 12h and 2min
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: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Johnson, NE
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is December (25 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in September
Johnson, 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
Johnson, NE
- Average cloud cover in September: 27
The months with the most cloud cover are January and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Johnson, 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).
Johnson, Nebraska, USA
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