Big Sky, MT weather in April
April in Big Sky: chilly, with frequent rain. Highs 48°F, lows 23°F, about 11 days with rain.
- Normal high
- 48°F
- Normal low
- 23°F
- Wet days
- 11
- 2.4 in total
- Daylight
- 13.5 h
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 45°F | 52°F |
| Normal low | 21°F | 25°F |
| Chance of a wet day | 38% | 39% |
| Sunrise / sunset | 7:05 am / 7:52 pm | 6:15 am / 8:30 pm |
| Daylight | 12.8 h | 14.2 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)2 of 30
- Hot dayshigh 90°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow11 of 30
- Notable rainat least 0.10 in7 of 30
- Freezing nightslow 32°F or below29 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain in April
Normal precipitation is 2.4 in; a dry April brings about 2.1 in and a wet one about 2.9 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How April varies from year to year
- Warmest April, 1991-20201992: average high 55°F
- Coolest April2011: average high 44°F
- Highest reading71°F (April 23, 2012)
- Lowest reading-9°F (April 6, 1997)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 42°F | 48°F | 58°F |
| Normal low | 17°F | 23°F | 30°F |
| Wet days | 12 | 11 | 14 |
| Comfortable days | 0 | 2 | 12 |
| Daylight | 11.9 h | 13.5 h | 14.9 h |
Highs change by +6°F from March and +10°F into May.
Nearby alternatives in April
- Warmer: Billings, MT143 mi · high 59°F · 10 wet days
- Drier: Sun Valley, ID183 mi · high 52°F · 7 wet days
How Big Sky ranks in April
- Normal high370th warmest of 378 cities; 5th of 6 in Montana
- Wet days278th driest of 378
What to pack for Big Sky in April
- A warm jacket – lows near 23°F, highs near 48°F
- Layers – afternoons near 48°F but nights near 23°F
- A rain jacket or umbrella – rain on about 11 days
- A hat and gloves – about 29 freezing nights
Heating and cooling
April has 893 heating degree days and 0 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.
Questions
How cold is Big Sky in April?
The normal high is 48°F and the normal low is 23°F. From 1991 to 2020 the coldest April reading was -9°F (April 6, 1997).
Does it rain a lot in Big Sky in April?
About 11 days in April have at least 0.01 in of precipitation, and the normal total is 2.4 in.
Is April a good time to visit Big Sky?
April ranks 6th of 12 months on our comfort score for Big Sky (50 out of 100). It has about 2 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).