September weather forecast
Grants, NM

Share

Weather in September

September sends signals that the intense summer heat in Grants is drawing to a close. With the reduction in daylight hours and the slight drop in temperatures, autumn's approach becomes unmistakable. Beautiful fall colors start adorning the city with the leaves changing hues. Septemeber could be seen as a delightful transition month, offering a break from the summer highs, while still keeping winter’s chill at bay. The conditions are perfect for a pleasant drive in Grants, witnessing the beginnings of the fall foliage.

Temperature

Grants in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 78.4°F (25.8°C) in August to an agreeable 73°F (22.8°C). Grants experiences a consistent average temperature of 53.8°F (12.1°C) throughout the nights in September.

Humidity

In September, the average relative humidity is 47%.

Rainfall

In Grants, in September, during 12.2 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 85.5 rainfall days, and 9.37" (238mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:56 pm MDT.

Sunshine

The average sunshine in September in Grants is 11h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In Grants, in September, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 53.8°F (12.1°C). 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, in July is computed to be 80.6°F (27°C).

What is the average humidity in September?

In Grants, the average relative humidity in September is 47%.

How many days does it rain in September?

In September, in Grants, the rain falls for 12.2 days. Throughout September, 1.42" (36mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

In Grants, New Mexico, 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 23min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:44 am and sunset at 7:37 pm. On the last day of the month, in Grants, sunrise is at 7:06 am and sunset at 6:56 pm MDT.

How many hours of sunshine does Grants have in September?

The average sunshine duration in September is 11h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Grants, NM

Average temperature in September - Grants, NM
  • Average high temperature in September: 73°F

The warmest month (with the highest average high temperature) is June (81°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in September: 53.8°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in September
Grants, NM

Average pressure in September - Grants, NM
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.89"Hg).

Average wind speed in September
Grants, NM

Average wind speed in September - Grants, NM
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in September
Grants, NM

Average humidity in September - Grants, NM
  • Average humidity in September: 47%

The month with the highest relative humidity is January (69%).
The month with the lowest relative humidity is June (26%).

Average rainfall in September
Grants, NM

Average rainfall in September - Grants, NM
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is November (0.35").

Average rainfall days in September
Grants, NM

Average rainfall days in September - Grants, NM
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is August (15.3 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in September
Grants, NM

Average snowfall in September - Grants, NM
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Grants, NM

Average snowfall days in September - Grants, NM
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Grants, NM

Average daylight in September / Average sunshine in September - Grants, NM
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 11h and 0min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).

Average sunshine days in September
Grants, NM

Average sunshine days in September - Grants, NM
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is November (24.5 days).
The month with the least sunshine days is August (10.5 days).

Average UV index in September
Grants, NM

Average UV index in September - Grants, NM
  • 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
Grants, NM

Average cloud cover in September - Grants, NM
  • Average cloud cover in September: 14

The month with the most cloud cover is January (Cloud cover 25).
The months with the least cloud cover are June and October (Cloud cover 12).

Average visibility in September
Grants, NM

Average visibility in September - Grants, NM
  • 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).

Grants, New Mexico, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location