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
A subtle shift in Palmyra's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 84.2°F (29°C) to a still warm 78.3°F (25.7°C). Palmyra in September anticipates an average nighttime temperature of 58.1°F (14.5°C).Humidity
In Palmyra, the average relative humidity in September is 74%.Rainfall
In Palmyra, during September, the rain falls for 10.7 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Palmyra, during the entire year, the rain falls for 138.1 days and collects up to 26.97" (685mm) of precipitation.Snowfall
In Palmyra, 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, sunrise is at 6:34 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:49 pm CDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In Palmyra, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Palmyra have in September?
How high is the UV index in September?
Average temperature in September
Palmyra, MO
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
Palmyra, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Palmyra, MO
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in September
Palmyra, MO
- Average humidity in September: 74%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Palmyra, MO
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in September
Palmyra, MO
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Palmyra, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Palmyra, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 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
Palmyra, MO
- Average daylight in September: 12h and 2min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Palmyra, MO
- Average sunshine days in September: 18.1 days
The months with the most sunshine days are January and December (19.4 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in September
Palmyra, MO
- 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
Palmyra, MO
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Palmyra, MO
- 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).
Palmyra, Missouri, USA
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