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 moderately hot 83.8°F (28.8°C) in August to a still warm 76.6°F (24.8°C). September witnesses an average low-temperature hovering around a refreshing 55.9°F (13.3°C).Humidity
In September, the average relative humidity is 41%.Rainfall
In September, the rain falls for 10.7 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 88.2 rainfall days, and 10.67" (271mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Navajo Dam, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:42 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:54 pm MDT.
Sunshine
The average sunshine in September is 11h.UV index
In Navajo Dam, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Take precautions - Protection against sun damage is advised. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Navajo Dam, NM
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Navajo Dam, NM
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The months with the lowest atmospheric pressure are May and June (29.9"Hg).
Average wind speed in September
Navajo Dam, NM
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.3mph).
Average humidity in September
Navajo Dam, NM
- Average humidity in September: 41%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is June (25%).
Average rainfall in September
Navajo Dam, NM
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is August (1.38").
The driest month (with the least rainfall) is June (0.35").
Average rainfall days in September
Navajo Dam, NM
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is November (3.7 days).
Average snowfall in September
Navajo Dam, NM
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Navajo Dam, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (7.3 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
Navajo Dam, NM
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in September
Navajo Dam, NM
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (23.8 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in September
Navajo Dam, 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
Navajo Dam, NM
- Average cloud cover in September: 12
The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in September
Navajo Dam, NM
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Navajo Dam, New Mexico, USA
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