Grand Junction weather in July: Grand Junction, Colorado: normal highs, lows, rain and records for July
Grand Junction in July has a normal high of 95°F and a normal low of 64°F, a daily mean of 79°F, holding near 95°F all month. Measurable precipitation falls on 5 days in a normal July, 0.59 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 35°C and low of 18°C, 15 mm of precipitation in July.
- NOAA stationGrand Junction Walker Field
- Station IDUSW00023066
- Location39.13°N 108.54°W
- Elevation4,858 ft (1,481 m)
- From the center3 miles
- Population70,554
- Jan 38° 17°
- Feb 46° 24°
- Mar 58° 32°
- Apr 66° 38°
- May 77° 47°
- Jun 89° 57°
- Jul 95° 64°
- Aug 91° 62°
- Sep 82° 53°
- Oct 67° 40°
- Nov 52° 28°
- Dec 39° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Grand Junction in July?
The normal high is 95°F and the normal low 64°F, for a daily mean of 79.2°F. July is 6.2°F warmer than June and 2.9°F warmer than August. July is the warmest month of the year in Grand Junction and the 10th wettest. From one year to the next July's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Julys in three average between 77°F and 82°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 19%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 94°F | 62°F | 12% | 6% |
| July 8 | 95°F | 63°F | 14% | 6% |
| July 15 | 95°F | 64°F | 15% | 7% |
| July 22 | 95°F | 65°F | 17% | 7% |
| July 31 | 94°F | 64°F | 19% | 7% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 15, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 94°F | 62°F | 12% | 6% | 14 h 50 min |
| July 2 | 94°F | 62°F | 12% | 6% | 14 h 50 min |
| July 3 | 94°F | 62°F | 12% | 6% | 14 h 50 min |
| July 4 | 94°F | 62°F | 13% | 6% | 14 h 50 min |
| July 5 | 94°F | 63°F | 13% | 6% | 14 h 50 min |
| July 6 | 94°F | 63°F | 13% | 6% | 14 h 50 min |
| July 7 | 95°F | 63°F | 13% | 6% | 14 h 50 min |
| July 8 | 95°F | 63°F | 14% | 6% | 14 h 50 min |
| July 9 | 95°F | 63°F | 14% | 6% | 14 h 50 min |
| July 10 | 95°F | 64°F | 14% | 6% | 14 h 50 min |
| July 11 | 95°F | 64°F | 14% | 6% | 14 h 50 min |
| July 12 | 95°F | 64°F | 15% | 6% | 14 h 40 min |
| July 13 | 95°F | 64°F | 15% | 6% | 14 h 40 min |
| July 14 | 95°F | 64°F | 15% | 7% | 14 h 40 min |
| July 15 | 95°F | 64°F | 15% | 7% | 14 h 40 min |
| July 16 | 95°F | 64°F | 16% | 7% | 14 h 40 min |
| July 17 | 95°F | 65°F | 16% | 7% | 14 h 40 min |
| July 18 | 95°F | 65°F | 16% | 7% | 14 h 40 min |
| July 19 | 95°F | 65°F | 16% | 7% | 14 h 40 min |
| July 20 | 95°F | 65°F | 16% | 7% | 14 h 30 min |
| July 21 | 95°F | 65°F | 17% | 7% | 14 h 30 min |
| July 22 | 95°F | 65°F | 17% | 7% | 14 h 30 min |
| July 23 | 95°F | 65°F | 17% | 7% | 14 h 30 min |
| July 24 | 95°F | 65°F | 17% | 7% | 14 h 30 min |
| July 25 | 95°F | 65°F | 18% | 7% | 14 h 30 min |
| July 26 | 94°F | 65°F | 18% | 7% | 14 h 20 min |
| July 27 | 94°F | 65°F | 18% | 7% | 14 h 20 min |
| July 28 | 94°F | 65°F | 18% | 7% | 14 h 20 min |
| July 29 | 94°F | 65°F | 18% | 7% | 14 h 20 min |
| July 30 | 94°F | 65°F | 19% | 7% | 14 h 20 min |
| July 31 | 94°F | 64°F | 19% | 7% | 14 h 20 min |
- Normal high
- 95°FJuly average
- Normal low
- 64°FJuly average
- Precipitation
- 0.59 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 26
- Daylight
- 14 h 50 min to 14 h 20 minJuly 1 to July 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 30
- Sunshine
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023066; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Grand Junction in July?
On a given July day the chance of 0.01 inch or more is 15% on average, highest around July 31 (19%). In all, 0.59 in falls on 5 days of a normal July.
In a normal July in Grand Junction, 26 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023066.
How humid and windy is Grand Junction in July?
At 3 p.m. the normal temperature is 90°F with 21% relative humidity and a dew point of 45°F; at 6 a.m. it is 67°F with 50% humidity. The wind averages 8.9 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 67°F | 48°F | 50% | 8.0 mph | 79% |
| 9 a.m. | 77°F | 49°F | 36% | 9.2 mph | 82% |
| noon | 86°F | 47°F | 26% | 7.0 mph | 80% |
| 3 p.m. | 90°F | 45°F | 21% | 9.8 mph | 73% |
| 6 p.m. | 87°F | 44°F | 22% | 10.6 mph | 72% |
| 9 p.m. | 77°F | 45°F | 32% | 8.6 mph | 79% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023066. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for July in Grand Junction?
The warmest July temperature on Grand Junction's official record (since 1893) is 107°F, on July 9, 2021; the coldest is 44°F, on July 5, 1993. The wettest July brought 2.72 in (1929).
The July mean against the 1991-2020 normal of 79.2°F: 2021 82.0°F (+2.8), 2022 81.3°F (+2.1), 2023 83.3°F (+4.1), 2024 83.0°F (+3.8), 2025 80.9°F (+1.7), 2026 84.1°F (+4.9). 6 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 82.0°F | +2.8°F | 0.50 in |
| 2022 | 81.3°F | +2.1°F | 0.93 in |
| 2023 | 83.3°F | +4.1°F | 0.00 in |
| 2024 | 83.0°F | +3.8°F | 0.14 in |
| 2025 | 80.9°F | +1.7°F | 0.17 in |
| 2026 | 84.1°F | +4.9°F | 0.07 in |
Source: records: ACIS, NWS threaded record GJTthr; recent months: ACIS, station USW00023066. Records and recent months use complete months only.
How does July in Grand Junction compare across Colorado?
Across the 125 places PlainClimate covers in Colorado, July normal highs run from 71°F in Fairplay to 95°F in Lamar; Grand Junction's is 95°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.