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 move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 80.2°F (26.8°C) to an agreeable 73°F (22.8°C). Throughout September, an average low-temperature of 54.1°F (12.3°C) is expected.Humidity
The average relative humidity in September in Palmer is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.57" (40mm) of precipitation.Snowfall
In Palmer, snow does not fall in June through September.Daylight
In Palmer, Massachusetts, the average length of the day in September is 12h and 28min.On the first day of September in Palmer, sunrise is at 6:15 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:32 pm EDT.
Sunshine
In September, the average sunshine in Palmer is 8.6h.UV index
The average daily maximum UV index in September in Palmer is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What is the temperature in September in Palmer?
What is the average humidity in September in Palmer?
What is the driest month in Palmer?
How many days does it rain in September in Palmer?
When it does not snow in Palmer?
Does it snow in Palmer in September?
How many hours of daylight does Palmer have in September?
When are sunrise and sunset in September in Palmer?
How long on average sun shines in September in Palmer?
What is the UV index reading in September in Palmer?
Average temperature in September
Palmer, MA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in September
Palmer, MA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Palmer, MA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Palmer, MA
- Average humidity in September: 77%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Palmer, MA
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Palmer, MA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Palmer, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Palmer, MA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Palmer, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Palmer, MA
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in September
Palmer, MA
- Average UV index in September: 4
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, March, November and December (UV index 2).
Average cloud cover in September
Palmer, MA
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Palmer, MA
- Average visibility in September: 5mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
Palmer, Massachusetts, USA
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