| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average temperature in Great Falls, Montana in December is slightly cold at -4.5 °C (23.9 °F).
- Afternoons can be very cool with average high temperatures reaching 0.6 °C (33.1 °F).
- Overnight temperatures are generally cold with an average low of -9.7 °C (14.5 °F).
- The variation/ range of diurnal mean temperatures in December is 10.3 °C (18.5 °F).
- The weather in December is somewhat parched with periodic snow. A paltry 21.6mm (0.9in) of H2O descends during on average 6 days.
- In December the skies in Great Falls, Montana are a little dull with on average a modest 4:17 of brilliant sunlight daily.
- The shortest day is 8:25 long and the longest day is 8:41 long with an average length of 8:30.
- There are approximately 4:01 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 51.6% of daylight hours and cloudy 48.4% of daylight hours.
Check the distance to and compare the Great Falls, Montana December averages with somewhere beginning with:
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Weather Trend Graph for December in Great Falls, Montana, Usa
Navigate to December Weather in Locations Surrounding Great Falls, Montana:
- Big Trout Lake, On, Canada - 332.1 kms (206.4 miles) NNW
- Lethbridge (Cda), Ab, Canada - 267.5 kms (166.2 miles) NNW
- Libby, Mt, Usa - 327.9 kms (203.7 miles) WNW
- Kalispell, Montana, Usa - 234.5 kms (145.7 miles) WNW
- Augusta, Mt, Usa - 71.9 kms (44.7 miles) SW
- Missoula, Mt, Usa - 214.7 kms (133.4 miles) WSW
- Helena, Mt, Usa - 109.3 kms (67.9 miles) SSW
- Dillon, Mt, Usa - 303.3 kms (188.5 miles) SSW
- Medicine Hat, Ab, Canada - 285.9 kms (177.7 miles) N
- Sachs Harbour, Nt, Canada - 215.2 kms (133.7 miles) NNE
- Manyberries, Alberta, Canada - 193.4 kms (120.2 miles) NNE
- Billings/ Logan, Mt, Usa - 286 kms (177.7 miles) SE
- Red Lodge, Mt, Usa - 302.9 kms (188.2 miles) SSE
- Livingston, Mt, Usa - 277.6 kms (172.5 miles) S
- Yellowstone Park, Wyoming, Usa - 284.5 kms (176.8 miles) S