September weather forecast and climate
Grenville, NM

September, the first month of the autumn, in Grenville, is also a moderately hot month, with average temperature varying between 79.5°F (26.4°C) and 58.8°F (14.9°C).

Temperature

In Grenville, the average high-temperature in September slightly decreases, from a hot 86.4°F (30.2°C) in August, to a moderately hot 79.5°F (26.4°C). The average low-temperature, is 58.8°F (14.9°C).

Humidity

In Grenville, the average relative humidity is 51%.

Rainfall

In Grenville, during 9.7 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, in Grenville, New Mexico, there are 88.4 rainfall days, and 11.34" (288mm) of precipitation is accumulated.

Snowfall

In Grenville snow does not fall in June through September.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine in Grenville is 10.4h.

UV index

In Grenville, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Grenville?

In Grenville, in September, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 58.8°F (14.9°C).

What is the average humidity in September in Grenville?

In September, the average relative humidity is 51%.

How much does it rain in Grenville in September?

In September, in Grenville, the rain falls for 9.7 days. Throughout September, 0.83" (21mm) of precipitation is accumulated.

Does it snow in Grenville in September?

In Grenville, New Mexico, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Grenville?

June through September are months without snowfall in Grenville.

How many hours of daylight does Grenville have in September?

The average length of the day in September in Grenville, New Mexico, is 12.4h.

How many hours of sunshine does Grenville have in September?

In Grenville, the average sunshine in September is 10.4h.

What is the UV index intensity in September in Grenville?

In Grenville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in September - Grenville, NM
  • Average high temperature in September: 26.4°C

The warmest month (with the highest average high temperature) is July (31.4°C).
The month with the lowest average high temperature is December (7.5°C).

  • Average low temperature in September: 14.9°C

The month with the highest average low temperature is July (19.8°C).
The coldest month (with the lowest average low temperature) is December (-2.4°C).

Average pressure in September - Grenville, NM
  • Average pressure in September: 1014.2mbar

The month with the highest atmospheric pressure is January (1019.3mbar).
The month with the lowest atmospheric pressure is June (1010mbar).

Average wind speed in September - Grenville, NM
  • Average wind speed in September: 18.5km/h

The windiest month (with the highest average wind speed) is April (21.6km/h).
The calmest month (with the lowest average wind speed) is August (16.2km/h).

Average humidity in September - Grenville, NM
  • Average humidity in September: 51%

The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is April (40%).

Average rainfall in September - Grenville, NM
  • Average rainfall in September: 21mm

The wettest month (with the highest rainfall) is July (55mm).
The driest month (with the least rainfall) is November (9mm).

Average rainfall days in September - Grenville, NM
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is November (2.1 days).

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

The month with the highest snowfall is February (50mm).
Months with the least snowfall are June, July, August and September (0mm).

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

The month with the highest number of snowfall days is January (4.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 10.4h

Months with the most sunshine are June and July (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 6.8h).

Average sunshine days in September - Grenville, NM
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in September - Grenville, NM
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September - Grenville, NM
  • Average cloud cover in September: 17

Months with the most cloud cover are February, April and December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 14).

Average visibility in September - Grenville, 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).