Big Sky weather in July: Big Sky, Montana: normal highs, lows, rain and records for July
Big Sky in July has a normal high of 78°F and a normal low of 41°F, a daily mean of 60°F, rising from 73°F on the 1st to 80°F by the 31st. Measurable precipitation falls on 10 days in a normal July, 1.25 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 25°C and low of 5°C, 32 mm of precipitation in July.
- NOAA stationBig Sky (2 mi WNW)
- Station IDUSC00240775
- Location45.28°N 111.33°W
- Elevation6,590 ft (2,009 m)
- Population (census place)2,388
- Jan 30° 9°
- Feb 34° 9°
- Mar 42° 17°
- Apr 48° 23°
- May 58° 30°
- Jun 67° 36°
- Jul 78° 41°
- Aug 77° 39°
- Sep 68° 33°
- Oct 53° 25°
- Nov 37° 16°
- Dec 28° 9°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Big Sky in July?
The normal high is 78°F and the normal low 41°F, for a daily mean of 59.5°F. July is 8.1°F warmer than June and 1.5°F warmer than August. July is the warmest month of the year in Big Sky and the 12th wettest. Across the month the normal high rises 7°F, from 73°F on July 1 to 80°F on July 31. From one year to the next July's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Julys in three average between 56°F and 63°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 38%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 73°F | 39°F | 38% | 20% |
| July 8 | 76°F | 40°F | 35% | 17% |
| July 15 | 78°F | 42°F | 34% | 16% |
| July 22 | 80°F | 42°F | 34% | 15% |
| July 31 | 80°F | 42°F | 35% | 16% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 25, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 73°F | 39°F | 38% | 20% | 15 h 40 min |
| July 2 | 73°F | 39°F | 38% | 19% | 15 h 40 min |
| July 3 | 74°F | 39°F | 37% | 19% | 15 h 30 min |
| July 4 | 74°F | 40°F | 37% | 18% | 15 h 30 min |
| July 5 | 74°F | 40°F | 36% | 18% | 15 h 30 min |
| July 6 | 75°F | 40°F | 36% | 17% | 15 h 30 min |
| July 7 | 75°F | 40°F | 36% | 17% | 15 h 30 min |
| July 8 | 76°F | 40°F | 35% | 17% | 15 h 30 min |
| July 9 | 76°F | 41°F | 35% | 16% | 15 h 30 min |
| July 10 | 77°F | 41°F | 35% | 16% | 15 h 30 min |
| July 11 | 77°F | 41°F | 35% | 16% | 15 h 30 min |
| July 12 | 77°F | 41°F | 35% | 16% | 15 h 20 min |
| July 13 | 78°F | 41°F | 34% | 16% | 15 h 20 min |
| July 14 | 78°F | 42°F | 34% | 16% | 15 h 20 min |
| July 15 | 78°F | 42°F | 34% | 16% | 15 h 20 min |
| July 16 | 78°F | 42°F | 34% | 15% | 15 h 20 min |
| July 17 | 79°F | 42°F | 34% | 15% | 15 h 20 min |
| July 18 | 79°F | 42°F | 34% | 15% | 15 h 20 min |
| July 19 | 79°F | 42°F | 34% | 15% | 15 h 10 min |
| July 20 | 79°F | 42°F | 34% | 15% | 15 h 10 min |
| July 21 | 79°F | 42°F | 34% | 15% | 15 h 10 min |
| July 22 | 80°F | 42°F | 34% | 15% | 15 h 10 min |
| July 23 | 80°F | 42°F | 34% | 15% | 15 h 10 min |
| July 24 | 80°F | 42°F | 34% | 15% | 15 h |
| July 25 | 80°F | 42°F | 34% | 15% | 15 h |
| July 26 | 80°F | 42°F | 34% | 15% | 15 h |
| July 27 | 80°F | 42°F | 34% | 16% | 15 h |
| July 28 | 80°F | 42°F | 34% | 16% | 15 h |
| July 29 | 80°F | 42°F | 34% | 16% | 14 h 50 min |
| July 30 | 80°F | 42°F | 34% | 16% | 14 h 50 min |
| July 31 | 80°F | 42°F | 35% | 16% | 14 h 50 min |
- Normal high
- 78°FJuly average
- Normal low
- 41°FJuly average
- Precipitation
- 1.25 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 2
- Daylight
- 15 h 40 min to 14 h 50 minJuly 1 to July 31
- Days at 70°F or more
- 28
- Days at 80°F or more
- 16
- Sunshine
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00240775; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Big Sky in July?
On a given July day the chance of 0.01 inch or more is 35% on average, highest around July 1 (38%). In all, 1.25 in falls on 10 days of a normal July.
In a normal July in Big Sky, 1 days reach 90°F and 2 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00240775.
What are the records for July in Big Sky?
The warmest July temperature on this station's record (since 1967) is 95°F, on July 13, 2002; the coldest is 22°F, on July 8, 1981. The wettest July brought 4.05 in (1987).
Source: records: ACIS, station USC00240775. Records and recent months use complete months only.
How does July in Big Sky compare across Montana?
Across the 141 places PlainClimate covers in Montana, July normal highs run from 73°F in St. Mary to 91°F in Broadus; Big Sky's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.