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
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 81.1°F (27.3°C) in August to a still warm 73.8°F (23.2°C). September nights in Hereford are marked by an average temperature drop to a cool 52.3°F (11.3°C).Humidity
In September, the average relative humidity is 44%.Rainfall
In Hereford, in September, during 8.4 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, in Hereford, Colorado, there are 116 rainfall days, and 14.57" (370mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Hereford.Daylight
In September, the average length of the day in Hereford, Colorado, is 12h and 27min.On the first day of September, sunrise is at 6:24 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm MDT.
Sunshine
The average sunshine in September in Hereford is 10.7h.UV index
In Hereford, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. 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.
Frequently asked questions
What are the temperatures in Hereford in September?
What is the average humidity in September in Hereford?
How much does it rain in Hereford in September?
When it does not snow in Hereford?
Does it snow in Hereford in September?
How many hours of daylight does Hereford have in September?
When are sunrise and sunset in September in Hereford?
How many hours of sunshine does Hereford have in September?
What is the UV index intensity in September in Hereford?
Average temperature in September
Hereford, CO
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (34.7°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in September
Hereford, CO
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Hereford, CO
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in September
Hereford, CO
- Average humidity in September: 44%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (43%).
Average rainfall in September
Hereford, CO
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Hereford, CO
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
Hereford, CO
- Average snowfall in September: 0"
The month with the highest snowfall is March (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hereford, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Hereford, CO
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in September
Hereford, CO
- Average sunshine days in September: 19 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is April (9.3 days).
Average UV index in September
Hereford, CO
- Average UV index in September: 4
The months with the highest UV index are 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
Hereford, CO
- Average cloud cover in September: 18
The months with the most cloud cover are April and May (Cloud cover 32).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in September
Hereford, 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).
Hereford, Colorado, USA
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