September weather forecast
Glenrock, NE

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Glenrock, Nebraska, with an average temperature ranging between max 77.9°F (25.5°C) and min 58.1°F (14.5°C).

Temperature

September heralds a minor drop in average high-temperature, sliding from August's 84°F (28.9°C) to a still moderately hot 77.9°F (25.5°C). Glenrock experiences an average nighttime temperature of 58.1°F (14.5°C) in the month of September.

Humidity

In September, the average relative humidity is 72%.

Rainfall

In Glenrock, in September, during 8.5 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Glenrock, during the entire year, the rain falls for 92 days and collects up to 8.78" (223mm) of precipitation.

Snowfall

In Glenrock, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:51 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:06 pm CDT.

Sunshine

The average sunshine in September is 9.1h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Glenrock in September?

The high-temperature, in September, in Glenrock, is 77.9°F (25.5°C), while the low-temperature averages to 58.1°F (14.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 93.2°F (34°C).

What is the average humidity in September?

In Glenrock, Nebraska, the average relative humidity in September is 72%.

How many days does it rain in September in Glenrock?

In Glenrock, in September, during 8.5 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

When it does not snow in Glenrock?

In Glenrock, snow does not fall in May through September.

Does it snow in September?

In Glenrock, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

In September, the average day length is 12h and 27min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:51 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:06 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.1h.

What is the UV index reading in September?

In Glenrock, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Glenrock, NE

Average temperature in September - Glenrock, 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
Glenrock, NE

Average pressure in September - Glenrock, 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
Glenrock, NE

Average wind speed in September - Glenrock, 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
Glenrock, NE

Average humidity in September - Glenrock, 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
Glenrock, NE

Average rainfall in September - Glenrock, 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
Glenrock, NE

Average rainfall days in September - Glenrock, 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
Glenrock, NE

Average snowfall in September - Glenrock, 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
Glenrock, NE

Average snowfall days in September - Glenrock, 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
Glenrock, NE

Average daylight in September / Average sunshine in September - Glenrock, 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
Glenrock, NE

Average sunshine days in September - Glenrock, 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
Glenrock, NE

Average UV index in September - Glenrock, 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
Glenrock, NE

Average cloud cover in September - Glenrock, 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
Glenrock, NE

Average visibility in September - Glenrock, 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).

Glenrock, Nebraska, USA

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