September weather forecast
Guide Rock, NE

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Weather in September

September, the first month of the autumn in Guide Rock, is still a warm month, with an average temperature fluctuating between 79.3°F (26.3°C) and 58.6°F (14.8°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a hot 86.7°F (30.4°C) in August to a warm 79.3°F (26.3°C). Guide Rock's average low-temperature during September nights is observed to be a refreshing 58.6°F (14.8°C).

Humidity

The average relative humidity in September is 65%.

Rainfall

In Guide Rock, in September, during 10.9 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Guide Rock, during the entire year, the rain falls for 110.2 days and collects up to 21.42" (544mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 7:01 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:16 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Act with care - The need to guard against sun damage is communicated. To guard against the harmful effects of the Sun, minimize exposure during midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Guide Rock, is 79.3°F (26.3°C), while the low-temperature averages to 58.6°F (14.8°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September in Guide Rock is 65%.

How many days does it rain in September?

In Guide Rock, in September, during 10.9 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When it does not snow?

In Guide Rock, snow does not fall in June through September.

Does it snow in September?

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

What is the average length of the day in September?

In Guide Rock, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:01 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:16 pm CDT.

How many hours of sunshine does Guide Rock have in September?

In September, the average sunshine duration is 8.5h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
Guide Rock, NE

Average temperature in September - Guide Rock, NE
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in September
Guide Rock, NE

Average pressure in September - Guide Rock, NE
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Guide Rock, NE

Average wind speed in September - Guide Rock, NE
  • Average wind speed in September: 9.9mph

The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.7mph).

Average humidity in September
Guide Rock, NE

Average humidity in September - Guide Rock, NE
  • Average humidity in September: 65%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is October (61%).

Average rainfall in September
Guide Rock, NE

Average rainfall in September - Guide Rock, NE
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in September
Guide Rock, NE

Average rainfall days in September - Guide Rock, NE
  • Average rainfall days in September: 10.9 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (2.6 days).

Average snowfall in September
Guide Rock, NE

Average snowfall in September - Guide Rock, 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
Guide Rock, NE

Average snowfall days in September - Guide Rock, NE
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Guide Rock, NE

Average daylight in September / Average sunshine in September - Guide Rock, 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 24min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 42min).

Average sunshine days in September
Guide Rock, NE

Average sunshine days in September - Guide Rock, NE
  • Average sunshine days in September: 16.6 days

The months with the most sunshine days are January and November (23.2 days).
The months with the least sunshine days are May and June (13.8 days).

Average UV index in September
Guide Rock, NE

Average UV index in September - Guide Rock, 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
Guide Rock, NE

Average cloud cover in September - Guide Rock, NE
  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 24).

Average visibility in September
Guide Rock, NE

Average visibility in September - Guide Rock, 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).

Guide Rock, Nebraska, USA

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