Big Sky, MT weather in March
In March, Big Sky sees highs around 42°F and lows around 17°F: chilly, with frequent rain. There are about 12 days with rain.
- Normal high
- 42°F
- Normal low
- 17°F
- Wet days
- 12
- 1.9 in total
- Daylight
- 11.9 h
How March changes from start to finish
| March 1 | March 31 | |
|---|---|---|
| Normal high | 38°F | 45°F |
| Normal low | 12°F | 20°F |
| Chance of a wet day | 38% | 38% |
| Sunrise / sunset | 7:03 am / 6:12 pm | 7:07 am / 7:51 pm |
| Daylight | 11.2 h | 12.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
What kind of days to expect
- Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)0 of 31
- Hot dayshigh 90°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow12 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below31 of 31
Average days per March, counted from daily records for each year 1991-2020.
Rain in March
Normal precipitation is 1.9 in; a dry March brings about 1.3 in and a wet one about 2.4 in (25th and 75th percentiles). Days with half an inch or more are rare.
How March varies from year to year
- Warmest March, 1991-20202015: average high 50°F
- Coolest March2008: average high 38°F
- Highest reading65°F (March 26, 2015)
- Lowest reading-17°F (March 2, 2002)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
March compared with February and April
| February | March | April | |
|---|---|---|---|
| Normal high | 34°F | 42°F | 48°F |
| Normal low | 9°F | 17°F | 23°F |
| Wet days | 11 | 12 | 11 |
| Comfortable days | 0 | 0 | 2 |
| Daylight | 10.4 h | 11.9 h | 13.5 h |
Highs change by +8°F from February and +6°F into April.
Nearby alternatives in March
- Warmer: Billings, MT143 mi · high 51°F · 9 wet days
- Drier: Great Falls, MT153 mi · high 46°F · 8 wet days
How Big Sky ranks in March
- Normal high346th warmest of 378 cities; 5th of 6 in Montana
- Wet days310th driest of 378
What to pack for Big Sky in March
- A warm jacket – lows near 17°F, highs near 42°F
- Layers – afternoons near 42°F but nights near 17°F
- A rain jacket or umbrella – rain on about 12 days
- A hat and gloves – about 31 freezing nights
Heating and cooling
March has 1107 heating degree days and 0 cooling degree days (base 65°F), 11% of the year's total heating and cooling demand.
Questions
How cold is Big Sky in March?
The normal high is 42°F and the normal low is 17°F. From 1991 to 2020 the coldest March reading was -17°F (March 2, 2002).
Does it rain a lot in Big Sky in March?
About 12 days in March have at least 0.01 in of precipitation, and the normal total is 1.9 in.
Is March a good time to visit Big Sky?
March ranks 8th of 12 months on our comfort score for Big Sky (40 out of 100). It has almost no comfortable days (judged by temperature only). The best months are June, July and September.
Where the numbers come from
- Temperature and rain: Big Sky 2WNW (USC00240775), 2.1 mi ESE of the city center, 6,590 ft (630 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Not available for this location: snowfall, snow depth, frost dates, humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).