September weather forecast and climate
Monument, NM

The first month of the autumn, September, is also a moderately hot month in Monument, New Mexico, with average temperature fluctuating between 65.3°F (18.5°C) and 83.5°F (28.6°C).

Temperature

In Monument, the average high-temperature marginally drops, from a tropical 91.9°F (33.3°C) in August, to a moderately hot 83.5°F (28.6°C). The average low-temperature, in September, is 65.3°F (18.5°C).

Heat index

The average heat index is appraised at 85.1°F (29.5°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

September is the most humid month, with an average relative humidity of 53%.

Rainfall

The month with the most rainfall is September when the rain falls for 12.4 days and typically aggregates up to 2.2" (56mm) of precipitation.

Snowfall

April through September are months without snowfall in Monument.

Daylight

In September, the average length of the day in Monument is 12.4h.

Sunshine

In September, the average sunshine is 9.9h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Monument?

In September, the average high-temperature is 83.5°F (28.6°C), and the average low-temperature is 65.3°F (18.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, in September is estimated at 85.1°F (29.5°C).

What is the most humid month in Monument?

The most humid month in Monument is September, with an average relative humidity of 53%.

What is the average humidity in September in Monument?

In Monument, New Mexico, the average relative humidity in September is 53%.

How much does it rain in Monument in September?

In September, in Monument, New Mexico, the rain falls for 12.4 days. Throughout September, 2.2" (56mm) of precipitation is accumulated.

What is the wettest month in Monument?

The month with the most rainfall is September when the rain falls for 12.4 days and typically aggregates up to 2.2" (56mm) of precipitation.

Does it snow in Monument in September?

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

When it does not snow in Monument?

April through September are months without snowfall in Monument.

What is the average length of the day in September in Monument?

In Monument, the average length of the day in September is 12.4h.

How many hours of sunshine does Monument have in September?

In Monument, New Mexico, the average sunshine in September is 9.9h.

What is the UV index intensity in September in Monument?

In September, the average daily maximum UV index in Monument, New Mexico, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Monument, NM
  • Average high temperature in September: 28.6°C

The warmest month (with the highest average high temperature) is June (33.8°C).
The month with the lowest average high temperature is January (12°C).

  • Average low temperature in September: 18.5°C

The month with the highest average low temperature is July (22.8°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).

Average pressure in September - Monument, NM
  • Average pressure in September: 1014.4mbar

The month with the highest atmospheric pressure is January (1020.3mbar).
The month with the lowest atmospheric pressure is June (1010.3mbar).

Average wind speed in September - Monument, NM
  • Average wind speed in September: 16.6km/h

The windiest month (with the highest average wind speed) is April (21.1km/h).
The calmest months (with the lowest average wind speed) are January and December (16.3km/h).

Average humidity in September - Monument, NM
  • Average humidity in September: 53%

The month with the highest relative humidity is September (53%).
The month with the lowest relative humidity is April (32%).

Average rainfall in September - Monument, NM
  • Average rainfall in September: 56mm

The wettest month (with the highest rainfall) is September (56mm).
The driest month (with the least rainfall) is February (6mm).

Average rainfall days in September - Monument, NM
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is September (12.4 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in September - Monument, NM
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (31mm).
Months with the least snowfall are April, May, June, July, August and September (0mm).

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

The month with the highest number of snowfall days is December (1.9 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Monument, NM
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 9.9h

The month with the most sunshine is June (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 6.9h).

Average sunshine days in September - Monument, NM
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is January (27.1 days).
The month with the least sunshine days is September (15.4 days).

Average UV index in September - Monument, NM
  • Average UV index in September: 6

Months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September - Monument, NM
  • Average cloud cover in September: 22

The month with the most cloud cover is September (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 12).

Average visibility in September - Monument, NM
  • Average visibility in September: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).