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
September is characterized by a mild reduction in the average high-temperature, from a tropical 86.5°F (30.3°C) in August to a warm 80.6°F (27°C). During September, the average low-temperature is recorded at an enjoyable 62.1°F (16.7°C).Heat index
September's mean heat index is estimated at 80.6°F (27°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
The average relative humidity in September is 44%.Rainfall
In Monticello, in September, during 11.8 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, in Monticello, there are 82.9 rainfall days, and 8.54" (217mm) of precipitation is accumulated.Snowfall
In Monticello, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:55 pm MDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
In Monticello, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What is the usual temperature for Monticello in September?
What is the average humidity in September in Monticello?
How many days does it rain in September in Monticello?
When it does not snow in Monticello?
What is the average length of the day in September in Monticello?
What time are sunrise and sunset in September in Monticello?
How many hours of sunshine does Monticello have in September?
How high is the UV index in September in Monticello?
Average temperature in September
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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
Monticello, 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).
Monticello, New Mexico, USA
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