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
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 81.3°F (27.4°C) to a still warm 74.3°F (23.5°C). In Blairs Mills, the nighttime temperature averages to a fresh 53.2°F (11.8°C) during September.Humidity
In September, the average relative humidity in Blairs Mills is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 1.85" (47mm) of precipitation.Snowfall
In Blairs Mills, Pennsylvania, snow does not fall in May through September.Daylight
In Blairs Mills, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:39 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:54 pm EDT.
Sunshine
In Blairs Mills, Pennsylvania, the average sunshine in September is 8.6h.UV index
In Blairs Mills, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are September temperatures in Blairs Mills?
What is the average humidity in September in Blairs Mills?
What is the driest month in Blairs Mills?
How much does it rain in Blairs Mills in September?
When it does not snow in Blairs Mills?
Does it snow in Blairs Mills in September?
How many hours of daylight does Blairs Mills have in September?
When are sunrise and sunset in September in Blairs Mills?
How long on average sun shines in September in Blairs Mills?
What is the UV index intensity in September in Blairs Mills?
Average temperature in September
Blairs Mills, PA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Blairs Mills, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Blairs Mills, PA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Blairs Mills, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Blairs Mills, PA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Blairs Mills, PA
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Blairs Mills, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Blairs Mills, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 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
Blairs Mills, PA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Blairs Mills, PA
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Blairs Mills, PA
- Average UV index in September: 4
The months with the highest UV index are May and June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Blairs Mills, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Blairs Mills, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Blairs Mills, Pennsylvania, USA
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