October weather forecastSomerville, MA
October
Weather in October
With a high-temperature drop to 61.2°F (16.2°C), October ushers in the full effect of the fall season in Somerville Massachusetts. The fall foliage starts to become more pronounced this month. The weather is significantly cooler compared to previous months, and the colorful autumn scenery envelops the city. Despite the shortening daylight hours, the period offers pleasant days. Unlike the chillier nights, the afternoons can be relatively warmer thanks to the shifting weather patterns.Temperature
The onset of October introduces a moderate change in Somerville's weather, with average high-temperatures falling from September's pleasant 72.9°F (22.7°C) to a comfortable 61.2°F (16.2°C). Somerville encounters a steady low-temperature average of 47.7°F (8.7°C) throughout the month of October.Humidity
The average relative humidity in October is 76%.Rainfall
In Somerville, during October, the rain falls for 4 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 47.8 rainfall days, and 4.13" (105mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in October is 11h and 3min.On the first day of October, sunrise is at 6:42 am and sunset at 6:25 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:38 pm EDT.
Sunshine
In Somerville, the average sunshine in October is 6h.UV index
In Somerville, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 3 in October translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Somerville, MA
- Average high temperature in October: 61.2°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in October: 47.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in October
Somerville, MA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Somerville, MA
- Average wind speed in October: 8mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in October
Somerville, MA
- Average humidity in October: 76%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (69%).
Average rainfall in October
Somerville, MA
- Average rainfall in October: 0.39"
The wettest month (with the highest rainfall) is November (0.55").
The driest month (with the least rainfall) is September (0.12").
Average rainfall days in October
Somerville, MA
- Average rainfall days in October: 4 days
The month with the highest number of rainy days is April (5.9 days).
The months with the least rainy days are January and September (2.9 days).
Average snowfall in October
Somerville, MA
- Average snowfall in October: 0"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in October
Somerville, MA
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (3.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Somerville, MA
- Average daylight in October: 11h and 0min
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 6min).
- Average sunshine in October: 6h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in October
Somerville, MA
- Average sunshine days in October: 25 days
The month with the most sunshine days is December (25.5 days).
The month with the least sunshine days is July (22.8 days).
Average UV index in October
Somerville, MA
- Average UV index in October: 3
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 October
Somerville, MA
- Average cloud cover in October: 44
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Somerville, MA
- Average visibility in October: 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).
