Climate Chart of Big Sky Ski-Resort, USA

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

For Big Sky Ski-Resort, USA, the climate data describe 2013–2023. Monthly mean temperatures range from -6.8 °C in December to 19.4 °C in July, giving a broad sense of the contrast across the year without describing daytime highs. The monthly rainfall and sunshine patterns also vary, while snowfall is recorded as a daily mean. These summaries offer useful planning context, but they do not predict conditions on any particular day.

Climate overview

Temperature

The warmest monthly mean is 19.4 °C in July, while the coolest is -6.8 °C in December. These are averages for each month, not daytime maximum temperatures, so they describe the broad temperature pattern rather than the range a visitor may encounter during a day. Across the calendar months, the unweighted mean of monthly mean temperatures is 4.8 °C. It summarizes the monthly averages without weighting them by the number of days in each month.

Rain

Mean daily rainfall reaches its monthly high of 2.44 mm/day in June and its low of 0.03 mm/day in January. The values are daily means, not monthly totals; the lower mean identifies a comparatively low-rainfall option on this measure, but does not guarantee dry days or show how often rain occurs. The unweighted mean across monthly mean daily rainfall values is 0.93 mm/day. This provides an overall summary of the monthly averages rather than a day-weighted annual figure.

Snow

Mean daily snowfall reaches its monthly high of 7.79 mm/day in December. The unweighted mean across monthly mean daily snowfall values is 4.29 mm/day. These snowfall amounts are daily means, not monthly totals, and do not establish the number of snowy days, snow depth, snow cover, or skiing conditions.

Sunshine

Mean daily sunshine is highest at 13.52 hours/day in July and lowest at 5.63 hours/day in December. These figures can help with planning around average sunshine duration, but sunshine hours are not the same as daylight length and do not guarantee clear conditions. The unweighted mean of the monthly mean daily sunshine values is 9.47 hours/day, a summary across calendar months rather than a day-weighted annual average.

Best Travel Time Guide for Big Sky Ski-Resort, USA: Ideal Seasons and Weather Insights

If lower average rainfall is your priority, January is the conditional option indicated by the lowest mean daily rainfall, 0.03 mm/day; this does not promise rain-free weather. For preparation, note that the highest mean daily rainfall occurs in June, at 2.44 mm/day, and consider being ready for wet conditions rather than treating the average as a forecast. Visitors prioritising cooler monthly mean temperatures can look to December, when the mean is -6.8 °C. This monthly average is not a daytime high or a guarantee of the temperature during a particular visit, so plan for variation in actual conditions.

For outdoor sightseeing planned around average sunshine duration, July has the highest mean at 13.52 hours/day, while December has the lowest at 5.63 hours/day. Sunshine duration is not day length and cannot ensure clear skies. The recorded snowfall mean peaks in December at 7.79 mm/day; that daily average alone cannot tell you whether snow will be present during a visit or establish snow cover or skiing conditions.

Climate Data Overview for Big Sky Ski-Resort, USA

Explore the comprehensive climate data for Big Sky Ski-Resort, USA. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

Month	Average: Temperature °C	Rain (mm) / day	Snow (mm) / day	Sunshine (h) / day
Jan	-6.5	0.03	5.18	6.34
Feb	-6.4	0.07	7.41	7.44
Mar	-1.7	0.31	7.00	9.22
Apr	2.3	0.99	7.75	10.39
May	8.7	2.17	3.97	11.35
Jun	14.6	2.44	0.55	12.69
Jul	19.4	0.92	0.00	13.52
Aug	18.4	1.31	0.00	12.01
Sep	13.0	1.69	1.42	10.02
Oct	4.9	0.98	4.43	8.28
Nov	-1.8	0.24	5.96	6.76
Dec	-6.8	0.05	7.79	5.63
Average	4.8	0.93	4.29	9.47