September weather forecastMcDonald, NM
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in McDonald, New Mexico, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 64.6°F (18.1°C).Temperature
McDonald in September undergoes a slight reduction in the average high-temperature, shifting from August's hot 91°F (32.8°C) to a warm 82.4°F (28°C). McDonald's average low-temperature for the month of September records at an enjoyable 64.6°F (18.1°C).Heat index
The heat index in September is estimated at 84.2°F (29°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
September is the most humid month, with an average relative humidity of 54%.Rainfall
The month with the most rainfall is September, when the rain falls for 11.7 days and typically aggregates up to 2.4" (61mm) of precipitation.Snowfall
In McDonald, snow does not fall in May through September.Daylight
In McDonald, New Mexico, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:38 pm MDT.
Sunshine
In September, the average sunshine is 9.9h.UV index
In McDonald, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
McDonald, NM
- Average high temperature in September: 82.4°F
The warmest month (with the highest average high temperature) is June (91.4°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
McDonald, NM
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
McDonald, NM
- Average wind speed in September: 10.6mph
The windiest month (with the highest average wind speed) is April (13.4mph).
The calmest month (with the lowest average wind speed) is August (10.3mph).
Average humidity in September
McDonald, NM
- Average humidity in September: 54%
The month with the highest relative humidity is September (54%).
The month with the lowest relative humidity is April (32%).
Average rainfall in September
McDonald, NM
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is September (2.4").
The driest month (with the least rainfall) is February (0.24").
Average rainfall days in September
McDonald, NM
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is September (11.7 days).
The months with the least rainy days are February and November (2.5 days).
Average snowfall in September
McDonald, NM
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.18").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
McDonald, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (2.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
McDonald, 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: 9h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
McDonald, NM
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is January (27.2 days).
The month with the least sunshine days is September (16.5 days).
Average UV index in September
McDonald, NM
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
McDonald, NM
- Average cloud cover in September: 23
The month with the most cloud cover is September (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 13).
Average visibility in September
McDonald, 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).





