September weather forecastCaldwell, WV
September
Weather in September
September, the first month of the autumn in Caldwell, is still a pleasant month, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 73°F (22.8°C).Temperature
In Caldwell, the average high-temperature in September gently drops from a warm 79.5°F (26.4°C) in August to a pleasant 73°F (22.8°C). In Caldwell, the average low-temperature during the month of September is a fresh 51.8°F (11°C).Humidity
In September, the average relative humidity is 81%.Rainfall
The month with the least rainfall is September, when the rain falls for 16.1 days and typically collects 1.97" (50mm) of precipitation.Snowfall
In Caldwell, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:05 pm EDT.
Sunshine
The average sunshine in September in Caldwell, West Virginia, is 7.9h.UV index
In Caldwell, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Caldwell, WV
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in September
Caldwell, WV
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Caldwell, WV
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Caldwell, WV
- Average humidity in September: 81%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April, June, July, August and November (79%).
Average rainfall in September
Caldwell, WV
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Caldwell, WV
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is May (22.1 days).
The month with the least rainy days is November (11.8 days).
Average snowfall in September
Caldwell, WV
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Caldwell, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Caldwell, WV
- 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: 7h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Caldwell, WV
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is May (7 days).
Average UV index in September
Caldwell, WV
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Caldwell, WV
- Average cloud cover in September: 47
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is June (Cloud cover 41).
Average visibility in September
Caldwell, WV
- Average visibility in September: 4mi
The months with the highest visibility are March, April, June, July and November (5mi).
The months with the lowest visibility are January, February, May, August, September, October and December (4mi).
