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
Nederland's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's pleasant 73°F (22.8°C) to a refreshing 66.4°F (19.1°C). Despite a significant deviation from daily highs, September sees an average nighttime temperature of 43°F (6.1°C).Humidity
The average relative humidity in September is 49%.Rainfall
In September, the rain falls for 12 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. In Nederland, during the entire year, the rain falls for 112.5 days and collects up to 21.65" (550mm) of precipitation.Snowfall
Months with snowfall are January through June, August through December. In Nederland, in September, during 1.8 snowfall days, 0.91" (23mm) of snow is typically accumulated. In Nederland, during the entire year, snow falls for 94.8 days and aggregates up to 86.42" (2195mm) of snow.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
In September, the average sunshine is 10.6h.UV index
In September, the average daily maximum UV index in Nederland is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What are the temperatures in Nederland in September?
What is the average humidity in September in Nederland?
How many days does it rain in September in Nederland?
How much does it snow in Nederland in September?
What is the average length of the day in September in Nederland?
What time are sunrise and sunset in September in Nederland?
How many hours of sunshine does Nederland have in September?
What is the UV index reading in September in Nederland?
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
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