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
The transition to September in Harrison results in a modest reduction in average high-temperature, moving from a warm 83.8°F (28.8°C) in August to a still moderately hot 75.6°F (24.2°C). September nights cool down to an average low-temperature of 55.2°F (12.9°C).Humidity
In Harrison, the average relative humidity in September is 45%.Rainfall
In Harrison, during September, the rain falls for 7.4 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, in Harrison, Nebraska, there are 94.9 rainfall days, and 10.39" (264mm) of precipitation is accumulated.Snowfall
Months with snowfall in Harrison are January through May, September through December. September is the first month it typically snows in Harrison, Nebraska. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Harrison, Nebraska, there are 43.5 snowfall days, and 15.63" (397mm) of snow is accumulated.Daylight
In Harrison, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:21 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm MDT.
Sunshine
In September, the average sunshine is 10.7h.UV index
In Harrison, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Harrison in September?
What is the average humidity in September in Harrison?
How many days does it rain in September in Harrison?
When does it start snowing in Harrison?
What is the average length of the day in September in Harrison?
When are sunrise and sunset in September in Harrison?
How many hours of sunshine does Harrison have in September?
How high is the UV index in September in Harrison?
Average temperature in September
Harrison, NE
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (32°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is December (18.9°F).
Average pressure in September
Harrison, NE
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Harrison, NE
- Average wind speed in September: 10.5mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).
Average humidity in September
Harrison, NE
- Average humidity in September: 45%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (44%).
Average rainfall in September
Harrison, NE
- Average rainfall in September: 0.67"
The wettest months (with the highest rainfall) are May and June (1.57").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in September
Harrison, NE
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is December (2.7 days).
Average snowfall in September
Harrison, NE
- Average snowfall in September: 0.08"
The month with the highest snowfall is March (2.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Harrison, NE
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Harrison, NE
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 12min).
Average sunshine days in September
Harrison, NE
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Harrison, 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
Harrison, NE
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Harrison, 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).
Harrison, Nebraska, USA
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