September weather forecastGrants, NM
September
Weather in September
September sends signals that the intense summer heat in Grants is drawing to a close. With the reduction in daylight hours and the slight drop in temperatures, autumn's approach becomes unmistakable. Beautiful fall colors start adorning the city with the leaves changing hues. Septemeber could be seen as a delightful transition month, offering a break from the summer highs, while still keeping winter’s chill at bay. The conditions are perfect for a pleasant drive in Grants, witnessing the beginnings of the fall foliage.Temperature
Grants in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 78.4°F (25.8°C) in August to an agreeable 73°F (22.8°C). Grants experiences a consistent average temperature of 53.8°F (12.1°C) throughout the nights in September.Humidity
In September, the average relative humidity is 47%.Rainfall
In Grants, in September, during 12.2 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 85.5 rainfall days, and 9.37" (238mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:56 pm MDT.
Sunshine
The average sunshine in September in Grants is 11h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grants, NM
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is June (81°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in September: 53.8°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Grants, NM
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.89"Hg).
Average wind speed in September
Grants, NM
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Grants, NM
- Average humidity in September: 47%
The month with the highest relative humidity is January (69%).
The month with the lowest relative humidity is June (26%).
Average rainfall in September
Grants, NM
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is November (0.35").
Average rainfall days in September
Grants, NM
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is August (15.3 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Grants, NM
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Grants, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grants, NM
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Grants, NM
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (24.5 days).
The month with the least sunshine days is August (10.5 days).
Average UV index in September
Grants, NM
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Grants, NM
- Average cloud cover in September: 14
The month with the most cloud cover is January (Cloud cover 25).
The months with the least cloud cover are June and October (Cloud cover 12).
Average visibility in September
Grants, 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).
