September weather forecastMetcalf, IL
September
Weather in September
September, the first month of the autumn in Metcalf, is still a warm month, with an average temperature varying between 77.2°F (25.1°C) and 58.6°F (14.8°C).Temperature
September's presence records an average high-temperature of a still warm 77.2°F (25.1°C), closely mirroring August's climate. In the month of September, the average temperature dips to a moderate 58.6°F (14.8°C) during the night.Humidity
The average relative humidity in September in Metcalf, Illinois, is 76%.Rainfall
In Metcalf, during September, the rain falls for 11 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Metcalf, Illinois, during the entire year, the rain falls for 133.4 days and collects up to 19.49" (495mm) of precipitation.Snowfall
In Metcalf, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Metcalf, Illinois, sunrise is at 6:19 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Metcalf is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Metcalf, IL
- Average high temperature in September: 77.2°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Metcalf, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Metcalf, IL
- Average wind speed in September: 6.9mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in September
Metcalf, IL
- Average humidity in September: 76%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Metcalf, IL
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in September
Metcalf, IL
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Metcalf, IL
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Metcalf, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Metcalf, IL
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Metcalf, IL
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Metcalf, IL
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Metcalf, IL
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).
Average visibility in September
Metcalf, IL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
