September weather forecastBoss, MO
September
Weather in September
September, the first month of the autumn in Boss, is still a warm month, with an average temperature ranging between max 79.7°F (26.5°C) and min 58.6°F (14.8°C).Temperature
September ushers in a minor alteration in Boss's climate, with the average high-temperature moving from August's hot 86.5°F (30.3°C) to a moderately hot 79.7°F (26.5°C). In the month of September, the average temperature in Boss dips to a refreshing 58.6°F (14.8°C) during the night.Humidity
In September, the average relative humidity is 75%.Rainfall
The month with the least rainfall in Boss is September, when the rain falls for 11.8 days and typically collects 1.93" (49mm) of precipitation.Snowfall
In Boss, snow does not fall in May through September.Daylight
In September, the average length of the day in Boss, Missouri, is 12h and 25min.On the first day of September, sunrise is at 6:35 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:48 pm CDT.
Sunshine
In Boss, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boss, MO
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in September
Boss, MO
- 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 June (29.93"Hg).
Average wind speed in September
Boss, MO
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Boss, MO
- Average humidity in September: 75%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Boss, MO
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Boss, MO
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Boss, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Boss, MO
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Boss, MO
- 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: 9h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Boss, MO
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Boss, MO
- Average UV index in September: 5
The months with the highest UV index are May, 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
Boss, MO
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Boss, MO
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).





