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
As September begins, there is a minor decrease in the average high-temperature, softly falling from a tropical 86.7°F (30.4°C) in August to a warm 79.5°F (26.4°C). In Hillrose, the average temperature during the nights of September marks a significant drop from the daily high, settling at a moderate 56.3°F (13.5°C).Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 45%.Rainfall
In Hillrose, Colorado, in September, it is raining for 8.5 days, with typically 0.71" (18mm) of accumulated precipitation. In Hillrose, Colorado, during the entire year, the rain falls for 104 days and collects up to 12.09" (307mm) of precipitation.Snowfall
In Hillrose, snow does not fall in June through September.Daylight
In Hillrose, Colorado, the average length of the day in September is 12h and 26min.On the first day of September in Hillrose, sunrise is at 6:22 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm MDT.
Sunshine
In September, the average sunshine is 10.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Hillrose in September?
What are the least humid months in Hillrose?
What is the average humidity in September in Hillrose?
How many days does it rain in September in Hillrose?
When it does not snow in Hillrose?
Does it snow in Hillrose in September?
How many hours of daylight does Hillrose have in September?
When are sunrise and sunset in September in Hillrose?
How long on average sun shines in September in Hillrose?
What is the UV index reading in September in Hillrose?
Average temperature in September
Hillrose, CO
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (38.7°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is December (22.5°F).
Average pressure in September
Hillrose, CO
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Hillrose, CO
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is December (7.8mph).
Average humidity in September
Hillrose, CO
- Average humidity in September: 45%
The month with the highest relative humidity is January (64%).
The months with the lowest relative humidity are August and September (45%).
Average rainfall in September
Hillrose, CO
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.39").
Average rainfall days in September
Hillrose, CO
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (2.9 days).
Average snowfall in September
Hillrose, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hillrose, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hillrose, 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 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in September
Hillrose, CO
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in September
Hillrose, CO
- 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
Hillrose, CO
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Hillrose, 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).
Hillrose, Colorado, USA
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