Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a hot 86.5°F (30.3°C) in August to a warm 80.6°F (27°C). September nights in Derry, New Mexico, are marked by an average low-temperature of 62.1°F (16.7°C).Heat index
The average heat index in September is evaluated at 80.6°F (27°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In Derry, the average relative humidity in September is 44%.Rainfall
In Derry, in September, during 11.8 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, in Derry, there are 82.9 rainfall days, and 8.54" (217mm) of precipitation is accumulated.Snowfall
In Derry, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Derry, New Mexico, sunrise is at 6:44 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:54 pm MDT.
Sunshine
The average sunshine in September in Derry, New Mexico, is 11.1h.UV index
In Derry, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 in September translates into these instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Derry in September?
What is the average humidity in September in Derry?
How many days does it rain in September in Derry?
When it does not snow in Derry?
How many hours of daylight does Derry have in September?
When is the sunrise / sunset in September in Derry?
How long on average sun shines in September in Derry?
What is the UV index intensity in September in Derry?
Average temperature in September
Derry, NM
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is June (90°F).
The month with the lowest average high temperature is December (51.1°F).
- Average low temperature in September: 62.1°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in September
Derry, 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 (29.86"Hg).
Average wind speed in September
Derry, NM
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Derry, NM
- Average humidity in September: 44%
The month with the highest relative humidity is December (50%).
The months with the lowest relative humidity are April and May (23%).
Average rainfall in September
Derry, NM
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is July (2.13").
The driest month (with the least rainfall) is April (0.12").
Average rainfall days in September
Derry, NM
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in September
Derry, NM
- Average snowfall in September: 0"
The month with the highest snowfall is November (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Derry, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Derry, NM
- Average daylight in September: 12h and 2min
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: 11h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 7h and 12min).
Average sunshine days in September
Derry, NM
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (26.5 days).
The month with the least sunshine days is July (7.7 days).
Average UV index in September
Derry, 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
Derry, NM
- Average cloud cover in September: 14
The month with the most cloud cover is July (Cloud cover 19).
The month with the least cloud cover is May (Cloud cover 9).
Average visibility in September
Derry, 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).
Derry, New Mexico, USA
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