January weather forecastEastham, MA
January
Weather in January
January, the same as December, is an icy winter month in Eastham, Massachusetts, with an average temperature varying between 38.7°F (3.7°C) and 31.6°F (-0.2°C).Temperature
The coldest period is January, when temperatures fluctuate between an average high of 38.7°F (3.7°C) and a low of 31.6°F (-0.2°C).Humidity
In January, the average relative humidity is 75%.Rainfall
In Eastham, in January, during 8.9 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, in Eastham, there are 136.1 rainfall days, and 17.24" (438mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Eastham, in January, snow falls for 6.1 days, with typically accumulated 0.91" (23mm) of snow. Throughout the year, there are 22.1 snowfall days, and 2.95" (75mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 33min.On the first day of the month, sunrise is at 7:07 am and sunset at 4:19 pm. On the last day of January, sunrise is at 6:53 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in January is 4.5h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Eastham, MA
- Average high temperature in January: 38.7°F
The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in January: 31.6°F
The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).
Average pressure in January
Eastham, MA
- Average pressure in January: 29.99"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 January
Eastham, MA
- Average wind speed in January: 18.5mph
The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).
Average humidity in January
Eastham, MA
- Average humidity in January: 75%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in January
Eastham, MA
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").
Average rainfall days in January
Eastham, MA
- Average rainfall days in January: 8.9 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in January
Eastham, MA
- Average snowfall in January: 0.91"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Eastham, MA
- Average snowfall days in January: 6.1 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Eastham, MA
- Average daylight in January: 9h and 36min
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 12min).
- Average sunshine in January: 4h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in January
Eastham, MA
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).
Average UV index in January
Eastham, MA
- Average UV index in January: 2
The months with the highest UV index are 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 January
Eastham, MA
- Average cloud cover in January: 53
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Eastham, MA
- Average visibility in January: 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).
