September weather forecastSan Patricio, NM

September

Weather in September

The first month of the autumn, September, is still a pleasant month in San Patricio, New Mexico, with an average temperature fluctuating between 73.2°F (22.9°C) and 54.3°F (12.4°C).

Temperature

In September, the average high-temperature marginally drops from a moderately hot 79.2°F (26.2°C) in August to a pleasant 73.2°F (22.9°C). Throughout September in San Patricio, a steady low-temperature average of 54.3°F (12.4°C) is noted.

Humidity

September and December, with an average relative humidity of 57%, are the most humid months in San Patricio, New Mexico.

Rainfall

In September, the rain falls for 15.1 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. In San Patricio, during the entire year, the rain falls for 103.5 days and collects up to 18.03" (458mm) of precipitation.

Snowfall

In San Patricio, New Mexico, snow does not fall in June through September.

Daylight

In San Patricio, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:46 pm MDT.

Sunshine

In San Patricio, the average sunshine in September is 10.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in September, in San Patricio, is 73.2°F (22.9°C) and the average low-temperature is 54.3°F (12.4°C).

September and December, with an average relative humidity of 57%, are most humid months in San Patricio.

In San Patricio, the average relative humidity in September is 57%.

In San Patricio, during September, the rain falls for 15.1 days and regularly aggregates up to 2.2" (56mm) of precipitation.

In San Patricio, New Mexico, snow does not fall in June through September.

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

In September, the average day length in San Patricio, New Mexico, is 12h and 22min.

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:26 pm. On the last day of the month, in San Patricio, sunrise is at 6:55 am and sunset at 6:46 pm MDT.

In San Patricio, the average sunshine duration in September is 10.4h.

In San Patricio, New Mexico, 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 unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
San Patricio, NM

  • Average high temperature in September: 73.2°F

The warmest month (with the highest average high temperature) is June (81.7°F).
The months with the lowest average high temperature are January and December (45.3°F).

  • Average low temperature in September: 54.3°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in September
San Patricio, NM

  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
San Patricio, NM

  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in September
San Patricio, NM

  • Average humidity in September: 57%

The months with the highest relative humidity are September and December (57%).
The month with the lowest relative humidity is April (30%).

Average rainfall in September
San Patricio, NM

  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in September
San Patricio, NM

  • Average rainfall days in September: 15.1 days

The months with the highest number of rainy days are July and August (20.3 days).
The month with the least rainy days is February (2.1 days).

Average snowfall in September
San Patricio, NM

  • Average snowfall in September: 0"

The month with the highest snowfall is December (3.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
San Patricio, NM

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
San Patricio, NM

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 10h and 24min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in September
San Patricio, NM

  • Average sunshine days in September: 10.8 days

The month with the most sunshine days is November (25.9 days).
The month with the least sunshine days is July (6.5 days).

Average UV index in September
San Patricio, NM

  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).

Average cloud cover in September
San Patricio, NM

  • Average cloud cover in September: 21

The months with the most cloud cover are July and December (Cloud cover 22).
The months with the least cloud cover are April, May, June, October and November (Cloud cover 14).

Average visibility in September
San Patricio, 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).