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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a moderately hot 79.9°F (26.6°C) in August to a pleasant 72.5°F (22.5°C). During September, the average low-temperature is a refreshing 55.9°F (13.3°C).Humidity
The average relative humidity in September is 76%.Rainfall
The month with the least rainfall in Lawrence is September, when the rain falls for 11.1 days and typically collects 1.46" (37mm) of precipitation.Snowfall
In Lawrence, snow does not fall in June through September.Daylight
In Lawrence, Massachusetts, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:10 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:27 pm EDT.
Sunshine
In Lawrence, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Lawrence, Massachusetts, is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What is the average September temperature in Lawrence?
What is the average humidity in September in Lawrence?
What is the driest month in Lawrence?
How much does it rain in Lawrence in September?
When it does not snow in Lawrence?
Does it snow in Lawrence in September?
What is the average length of the day in September in Lawrence?
When is the sunrise / sunset in September in Lawrence?
How long on average sun shines in September in Lawrence?
What is the UV index reading in September in Lawrence?
Average temperature in September
Lawrence, MA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Lawrence, MA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Lawrence, MA
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Lawrence, MA
- Average humidity in September: 76%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Lawrence, MA
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in September
Lawrence, MA
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (15.8 days).
The months with the least rainy days are January and February (7.6 days).
Average snowfall in September
Lawrence, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lawrence, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lawrence, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Lawrence, MA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is April (13.7 days).
Average UV index in September
Lawrence, 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
Lawrence, MA
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Lawrence, MA
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Lawrence, Massachusetts, USA
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