October weather forecastWaltham, MA
October
Weather in October
October brings forth the full force of autumn in Waltham, Massachusetts. This is when the weather starts to cool down significantly after the summer months, and the city becomes a riot of colors as the leaves change hues. The average high and low temperatures nestle around the cool 60.6°F (15.9°C) and 46.9°F (8.3°C) respectively. The shorter days and longer nights set the city on the path towards winter.Temperature
The onset of October comes with a shift in the average high-temperature, falling from a pleasant 73.2°F (22.9°C) in September to a refreshing 60.6°F (15.9°C). An average low-temperature of 46.9°F (8.3°C) is observed during October nights in Waltham.Humidity
In Waltham, the average relative humidity in October is 76%.Rainfall
In October, the rain falls for 8.9 days. Throughout October, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 106.3 rainfall days, and 8.5" (216mm) of precipitation is accumulated.Snowfall
In Waltham, snow does not fall in June through October.Daylight
The average length of the day in October is 11h and 3min.On the first day of the month, sunrise is at 6:42 am and sunset at 6:25 pm. On the last day of October, sunrise is at 7:17 am and sunset at 5:39 pm EDT.
Sunshine
In Waltham, Massachusetts, the average sunshine in October is 6.1h.UV index
The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In October, a regular UV index of 3 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Waltham, MA
- Average high temperature in October: 60.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in October: 46.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in October
Waltham, MA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Waltham, MA
- Average wind speed in October: 7.5mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in October
Waltham, 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 (70%).
Average rainfall in October
Waltham, MA
- Average rainfall in October: 0.79"
The wettest months (with the highest rainfall) are April and November (0.87").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in October
Waltham, MA
- Average rainfall days in October: 8.9 days
The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in October
Waltham, MA
- Average snowfall in October: 0"
The month with the highest snowfall is December (1.14").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in October
Waltham, MA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Waltham, 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 6min
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 42min).
Average sunshine days in October
Waltham, MA
- Average sunshine days in October: 18.8 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is June (15.8 days).
Average UV index in October
Waltham, 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
Waltham, 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
Waltham, 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).
