Sullivan, MT
Historical community (former settlement) in Glacier County, Montana
Sullivan is a historical community (former settlement) in Glacier County, Montana. It is 16.3 miles SE of Big Sky Colony, the nearest town.
Sullivan at a glance
- State
- Montana
- County
- Glacier County
- Nearest town
- Big Sky Colony (16.3 mi)
- Time zone
- America/Denver
- Coordinates
- 48.9875, -113.0486
Weather in Sullivan now
Loading the National Weather Service forecast…
Sullivan weather by the hour
Sullivan weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Sullivan.
This week in Sullivan
Sunrise, sunset and moon in Sullivan
What is the weather usually like in Sullivan?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 76°F average high
- Januarycoldest month · 11°F average low
- 13.1 inprecipitation per year · 332 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Sullivan: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station DEL BONITA, MT US (USC00242301), adjusted for the elevation of Sullivan.
Sullivan weather month by month
Sunrise and sunset in Sullivan through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:18 AM | 5:04 PM | 8 h 46 min |
| February | 7:38 AM | 5:54 PM | 10 h 16 min |
| March | 7:43 AM | 7:39 PM | 11 h 56 min |
| April | 6:38 AM | 8:25 PM | 13 h 47 min |
| May | 5:47 AM | 9:09 PM | 15 h 22 min |
| June | 5:25 AM | 9:40 PM | 16 h 14 min |
| July | 5:42 AM | 9:33 PM | 15 h 50 min |
| August | 6:23 AM | 8:49 PM | 14 h 26 min |
| September | 7:07 AM | 7:46 PM | 12 h 39 min |
| October | 7:51 AM | 6:44 PM | 10 h 52 min |
| November | 7:40 AM | 4:53 PM | 9 h 12 min |
| December | 8:17 AM | 4:37 PM | 8 h 19 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Sullivan?
Sullivan has a cold semi-arid climate. The warmest month is July, with an average high of 76°F (24°C), and the coldest is January, with average lows of 11°F (-12°C).
It gets about 13.1 inches (332 mm) of precipitation a year. The wettest month is June and the driest is January.
The best time to visit Sullivan is June to September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Sullivan
The closest live webcam is Glacier: Saint Mary Visitor Center, 24.3 miles SW of Sullivan.
Webcams: Windy.com. Distances in a straight line from Sullivan.
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Map of Sullivan, MT
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Sullivan Street View
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Questions about Sullivan
Where is Sullivan, MT?
Sullivan is a historical community (former settlement) in Glacier County, Montana, 16.3 miles SE of Big Sky Colony.
What county is Sullivan in?
Sullivan is in Glacier County, Montana.
What is the nearest town to Sullivan?
Big Sky Colony, 16.3 miles away.
Are there webcams near Sullivan?
Yes. The closest is Glacier: Saint Mary Visitor Center, 24.3 miles away.
What is the hottest month in Sullivan?
July, with an average high of 76°F (24°C).
What is the coldest month in Sullivan?
January, with an average low of 11°F (-12°C).
How much does it rain in Sullivan?
About 13.1 inches (332 mm) a year; the wettest month is June.
Does it snow in Sullivan?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Sullivan?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Sullivan have?
Cold semi-arid (Köppen BSk).
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