September weather forecastDelhi, CO
September
Weather in September
September, the first month of the autumn in Delhi, is still a warm month, with an average temperature fluctuating between 83.1°F (28.4°C) and 61.2°F (16.2°C).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a hot 89.8°F (32.1°C) to a warm 83.1°F (28.4°C). The temperature notes a substantial fall from the daily peak to an average of 61.2°F (16.2°C) during September nights.Heat index
September's mean heat index is evaluated at 82.4°F (28°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. 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 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In Delhi, the average relative humidity in September is 41%.Rainfall
In Delhi, Colorado, during September, the rain falls for 7.2 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Delhi, during the entire year, the rain falls for 92.8 days and collects up to 10.67" (271mm) of precipitation.Snowfall
In Delhi, snow does not fall in June through September.Daylight
The average length of the day in September in Delhi is 12h and 25min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:40 pm MDT.
Sunshine
In Delhi, the average sunshine in September is 10.8h.UV index
In Delhi, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Delhi, CO
- Average high temperature in September: 83.1°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in September: 61.2°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure in September
Delhi, CO
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Delhi, CO
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is December (7.4mph).
Average humidity in September
Delhi, CO
- Average humidity in September: 41%
The months with the highest relative humidity are January and December (57%).
The month with the lowest relative humidity is June (36%).
Average rainfall in September
Delhi, CO
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is July (1.93").
The driest month (with the least rainfall) is November (0.35").
Average rainfall days in September
Delhi, CO
- Average rainfall days in September: 7.2 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Delhi, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Delhi, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delhi, CO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 10h and 48min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in September
Delhi, CO
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in September
Delhi, CO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Delhi, CO
- Average cloud cover in September: 14
The months with the most cloud cover are February and April (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in September
Delhi, CO
- 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).





