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
In Nederland, the average high-temperature in September slightly decreases from an agreeable 73°F (22.8°C) in August to a comfortable 66.4°F (19.1°C). Nederland experiences a substantial decline from the daytime high temperatures in September, settling on an average low of 43°F (6.1°C).Humidity
In September, the average relative humidity is 49%.Rainfall
In Nederland, in September, it is raining for 12 days, with typically 1.5" (38mm) of accumulated precipitation. In Nederland, Colorado, during the entire year, the rain falls for 112.5 days and collects up to 21.65" (550mm) of precipitation.Snowfall
January through June, August through December are months with snowfall. In Nederland, in September, during 1.8 snowfall days, 0.91" (23mm) of snow is typically accumulated. Throughout the year, there are 94.8 snowfall days, and 86.42" (2195mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm MDT.
Sunshine
The average sunshine in September is 10.6h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Nederland in September?
What is the average humidity in September?
How much does it rain in September?
How many days does it snow in September?
How many hours of daylight does Nederland have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Nederland have in September?
What is the UV index reading in September?
Average temperature in September
Nederland, CO
- Average high temperature in September: 66.4°F
The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is December (30°F).
- Average low temperature in September: 43°F
The month with the highest average low temperature is July (49.6°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).
Average pressure in September
Nederland, CO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).
Average wind speed in September
Nederland, CO
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in September
Nederland, CO
- Average humidity in September: 49%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is June (48%).
Average rainfall in September
Nederland, CO
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Nederland, CO
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (2.6 days).
Average snowfall in September
Nederland, CO
- Average snowfall in September: 0.91"
The month with the highest snowfall is April (16.54").
The month with the least snowfall is July (0").
Average snowfall days in September
Nederland, CO
- Average snowfall days in September: 1.8 days
The month with the highest number of snowfall days is March (14.5 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Nederland, CO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in September
Nederland, CO
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (9 days).
Average UV index in September
Nederland, CO
- Average UV index in September: 3
The month with the highest UV index is August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Nederland, CO
- Average cloud cover in September: 21
The month with the most cloud cover is May (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 20).
Average visibility in September
Nederland, 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).
Nederland, Colorado, USA
Weather forecast for your location
2. Allow the app to use your location