Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The shift to December brings a decrease in the average high-temperature, falling from a frosty 48.2°F (9°C) in November to an icy 37.6°F (3.1°C). An average low-temperature of 26.1°F (-3.3°C) is recorded during the nights in December in Longmeadow.Humidity
In December, the average relative humidity is 79%.Rainfall
In Longmeadow, during December, the rain falls for 9.5 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, in Longmeadow, there are 129.5 rainfall days, and 16.06" (408mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Longmeadow, in December, snow falls for 5.1 days, with typically accumulated 0.94" (24mm) of snow. Throughout the year, there are 26.1 snowfall days, and 5.83" (148mm) of snow is accumulated.Daylight
The month with the shortest days in Longmeadow, Massachusetts, is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:28 pm EST.
Sunshine
In Longmeadow, the average sunshine in December is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
How cold is it in Longmeadow in December?
What is the average humidity in December in Longmeadow?
How many days does it rain in December in Longmeadow?
How many days does it snow in December in Longmeadow?
What is the month with the shortest days in Longmeadow?
How many hours of daylight does Longmeadow have in December?
When are sunrise and sunset in December in Longmeadow?
How many hours of sunshine does Longmeadow have in December?
When is the lowest UV index in Longmeadow?
What is the UV index reading in December in Longmeadow?
Average temperature in December
Longmeadow, MA
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Longmeadow, MA
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Longmeadow, MA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Longmeadow, MA
- Average humidity in December: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Longmeadow, MA
- Average rainfall in December: 1.38"
The wettest months (with the highest rainfall) are July and October (1.69").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in December
Longmeadow, MA
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Longmeadow, MA
- Average snowfall in December: 0.94"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Longmeadow, MA
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Longmeadow, MA
- Average daylight in December: 9h and 1min
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 December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Longmeadow, MA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is June (15.1 days).
Average UV index in December
Longmeadow, MA
- Average UV index in December: 2
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 December
Longmeadow, MA
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Longmeadow, MA
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
Longmeadow, Massachusetts, USA
Weather forecast for your location
2. Allow the app to use your location
