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
In September, the average high-temperature marginally decreases from a moderately hot 82.2°F (27.9°C) in August to a still warm 75.6°F (24.2°C). Reid experiences a nighttime temperature average of 55.8°F (13.2°C) during September.Humidity
The average relative humidity in September is 78%.Rainfall
In Reid, in September, during 14.2 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Reid, during the entire year, the rain falls for 164.7 days and collects up to 29.17" (741mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:54 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Reid have in September?
When are sunrise and sunset in September in Reid?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Reid, MD
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in September
Reid, MD
- 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
Reid, MD
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Reid, MD
- Average humidity in September: 78%
The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in September
Reid, MD
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in September
Reid, MD
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Reid, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Reid, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Reid, MD
- 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Reid, MD
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Reid, MD
- Average UV index in September: 4
The months with the highest UV index are May, 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
Reid, MD
- Average cloud cover in September: 38
The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Reid, MD
- Average visibility in September: 5mi
The months with the highest visibility are April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, September and October (5mi).
Reid, Maryland, USA
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