December weather forecast
Townsend, MT

Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
°Celsius°Fahrenheit
Share

Contents

Weather in December

December, the final month of the year in Townsend, Montana, signifies the height of winter. A striking drop in temperature is observed to a low of 13.1°F (-10.5°C), setting the tone for classic winter conditions. Overcast skies, reduced sunshine hours, and substantial snowfall become common. Although this month shares many characteristics with November, it differs remarkably in terms of temperature lows and snowfall. The transition from December to the New Year presents a steady winter pattern, encapsulating the tranquillity of winter in Montana.

Temperature

In Townsend, December records the lowest average temperatures, peaking at 27.1°F (-2.7°C) and reaching a low of 13.1°F (-10.5°C).

Humidity

In December, the average relative humidity is 84%.

Rainfall

The month with the least rainfall is December, when the rain falls for 6.3 days and typically collects 0.51" (13mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Townsend, in December, snow falls for 13.1 days, with typically accumulated 3.74" (95mm) of snow. In Townsend, during the entire year, snow falls for 72.8 days and aggregates up to 26.22" (666mm) of snow.

Daylight

December has the shortest days of the year in Townsend, with an average of 8h and 42min of daylight.
On the first day of December in Townsend, sunrise is at 7:49 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 4:49 pm MST.

Sunshine

In December, the average sunshine is 5.8h.

UV index

February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 1 in December translates into these instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
[Resources]

Frequently asked questions

What is the coldest time of year in Townsend?

December is Townsend's coldest month, registering average high temperatures of 27.1°F (-2.7°C) and lows of 13.1°F (-10.5°C).

How cold is December in Townsend?

During December, Townsend experiences an average high-temperature of 27.1°F (-2.7°C) and a low-temperature of 13.1°F (-10.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is estimated at 82.4°F (28°C).

What is the average humidity in December in Townsend?

In Townsend, the average relative humidity in December is 84%.

What is the driest month in Townsend?

December is the month with the least rainfall in Townsend, Montana. Rain falls for 6.3 days and accumulates 0.51" (13mm) of precipitation.

How many days does it rain in December in Townsend?

In Townsend, during December, the rain falls for 6.3 days and regularly aggregates up to 0.51" (13mm) of precipitation.

How many days does it snow in December in Townsend?

In Townsend, in December, snow falls for 13.1 days, with typically accumulated 3.74" (95mm) of snow.

What is the month with the shortest days in Townsend?

The month with the shortest days in Townsend is December, with an average of 8h and 42min of daylight.

How many hours of daylight does Townsend have in December?

The average day length in December is 8h and 41min.

When are sunrise and sunset in December in Townsend?

In December, on the first day of the month, sunrise is at 7:49 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 4:49 pm MST.

How long on average sun shines in December in Townsend?

The average sunshine duration in December in Townsend is 5.8h.

When is the lowest UV index in Townsend?

February and December, with an average maximum UV index of 1, are months with the lowest UV index in Townsend.

What is the UV index reading in December in Townsend?

The average daily maximum UV index in December in Townsend is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
37.6°F 3.1°C
27.1°F -2.7°C
28.9°F -1.7°C
Average low temperature
21.7°F -5.7°C
13.1°F -10.5°C
14.5°F -9.7°C
Average pressure
30.1" 765mmHg
30.17" 766mmHg
30.17" 766mmHg
Average wind speed
6.5mph 10.5km/h
6.6mph 10.6km/h
6.5mph 10.5km/h
Average max. wind speed
7.1mph 11.4km/h
7.3mph 11.7km/h
7.1mph 11.4km/h
Average wind speed gusts
11.3mph 18.2km/h
11.7mph 18.8km/h
11.9mph 19.2km/h
Average humidity
78%
84%
86%
Average rainfall
0.67" 17mm
0.51" 13mm
0.59" 15mm
Average rainfall days
7.4
6.3
6.2
Average snowfall
3.31" 84mm
3.74" 95mm
4.13" 105mm
Average snowfall days
8.7
13.1
13
Average daylight
9h 2min
8h 4min
9h 1min
Average sunshine
6h 2min
5h 5min
5h 3min
Average sunshine days
17.3
16.5
16.3
Average UV index
2
1
2
Average cloud cover
36%
43%
44%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in December
Townsend, MT

Average temperature in December - Townsend, MT
  • Average high temperature in December: 27.1°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (27.1°F).

  • Average low temperature in December: 13.1°F

The months with the highest average low temperature are July and August (49.3°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

[Resources]

Average pressure in December
Townsend, MT

Average pressure in December - Townsend, MT
  • Average pressure in December: 30.17"Hg

The months with the highest atmospheric pressure are January and December (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

[Resources]

Average wind speed in December
Townsend, MT

Average wind speed in December - Townsend, MT
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is December (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

[Resources]

Average humidity in December
Townsend, MT

Average humidity in December - Townsend, MT
  • Average humidity in December: 84%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).

[Resources]

Average rainfall in December
Townsend, MT

Average rainfall in December - Townsend, MT
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is June (1.65").
The driest month (with the least rainfall) is December (0.51").

[Resources]

Average rainfall days in December
Townsend, MT

Average rainfall days in December - Townsend, MT
  • Average rainfall days in December: 6.3 days

The month with the highest number of rainy days is April (14.7 days).
The month with the least rainy days is January (6.2 days).

[Resources]

Average snowfall in December
Townsend, MT

Average snowfall in December - Townsend, MT
  • Average snowfall in December: 3.74"

The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July and August (0").

[Resources]

Average snowfall days in December
Townsend, MT

Average snowfall days in December - Townsend, MT
  • Average snowfall days in December: 13.1 days

The month with the highest number of snowfall days is February (15.4 days).
The months with the least snowfall days are June, July and August (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Townsend, MT

Average daylight in December / Average sunshine in December - Townsend, MT
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

[Resources]

Average sunshine days in December
Townsend, MT

Average sunshine days in December - Townsend, MT
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is April (10.5 days).

[Resources]

Average UV index in December
Townsend, MT

Average UV index in December - Townsend, MT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and December (UV index 1).

[Resources]

Average cloud cover in December
Townsend, MT

Average cloud cover in December - Townsend, MT
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 15).

[Resources]

Average visibility in December
Townsend, MT

Average visibility in December - Townsend, MT
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

[Resources]

Townsend, Montana, USA

Weather forecast for today
Weather forecast for tomorrow
10 days weather forecast
Climate data
1January
2February
3March
4April
5May
6June
7July
8August
9September
10October
11November
12December

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location