Winthrop
Massachusetts, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Winthrop, MA

October, like September, in Winthrop, Massachusetts, is another comfortable autumn month, with average temperature ranging between min 48.4°F (9.1°C) and max 61.5°F (16.4°C).

Temperature

In Winthrop, the average high-temperature in October drops, from an agreeable 72.7°F (22.6°C) in September, to a comfortable 61.5°F (16.4°C). In October, the average low-temperature is 48.4°F (9.1°C).

Humidity

In Winthrop, Massachusetts, the average relative humidity in October is 75%.

Rainfall

In Winthrop, in October, during 13.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, in Winthrop, Massachusetts, there are 141.4 rainfall days, and 27.2" (691mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows in Winthrop. Throughout October, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 29.8 snowfall days, and 15.75" (400mm) of snow is accumulated.

Ocean temperature

In Winthrop, Massachusetts, in October, the average water temperature is 58.1°F (14.5°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In Winthrop, the average length of the day is 11h.

Sunshine

In Winthrop, the average sunshine is 6h.

UV index

In Winthrop, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 in October transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in October in Winthrop?

In Winthrop, Massachusetts, in October, the average high-temperature is 61.5°F (16.4°C), and the average low-temperature is 48.4°F (9.1°C).

What is the average humidity in October in Winthrop?

The average relative humidity in October is 75%.

How much does it rain in Winthrop in October?

In October, the rain falls for 13.3 days. Throughout October, 2.56" (65mm) of precipitation is accumulated.

When does it start snowing in Winthrop?

October is the first month it typically snows in Winthrop. Throughout October, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

How cold is the water in October in Winthrop?

In October, the average ocean temperature in Winthrop is 58.1°F (14.5°C). Swimming in 58.1°F (14.5°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in October in Winthrop?

In Winthrop, the average length of the day in October is 11h.

How long on average sun shines in October in Winthrop?

The average sunshine in October is 6h.

How high is the UV index in October in Winthrop?

In October, the average daily maximum UV index in Winthrop is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.
Average temperature in October - Winthrop, MA
  • Average high temperature in October: 61.5°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 (34.2°F).

  • Average low temperature in October: 48.4°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average humidity in October - Winthrop, MA
  • Average humidity in October: 75%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (69%).

Average rainfall in October - Winthrop, MA
  • Average rainfall in October: 2.56"

The wettest months (with the highest rainfall) are March, April and December (2.91").
The driest month (with the least rainfall) is September (1.26").

Average rainfall days in October - Winthrop, MA
  • Average rainfall days in October: 13.3 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in October - Winthrop, MA
  • Average snowfall in October: 0.12"

The month with the highest snowfall is February (4.72").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in October - Winthrop, MA
  • Average snowfall days in October: 0.1 days

Months with the highest number of snowfall days are January and February (7.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in October - Winthrop, MA
  • Average sea temperature in October: 58°F

The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).

Average daylight in October / Average sunshine in October - Winthrop, MA
  • Average daylight in October: 11h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in October: 6h

The month with the most sunshine is August (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average UV index in October - Winthrop, MA
  • Average UV index in October: 3

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).