Gillette, WY weather in July
In July, Gillette sees highs around 86°F and lows around 57°F: warm, with some rain. Expect about 8 wet days. It is one of the warmest months in Gillette.
- Normal high
- 86°F
- Normal low
- 57°F
- Wet days
- 8
- 1.7 in total
- Daylight
- 15.1 h
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 83°F | 88°F |
| Normal low | 54°F | 59°F |
| Chance of a wet day | 28% | 26% |
| Sunrise / sunset | 5:22 am / 8:49 pm | 5:48 am / 8:28 pm |
| Daylight | 15.5 h | 14.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
A typical July day
- 6 am63°Fdew point 51°F
- 9 am74°Fdew point 50°F
- Noon82°Fdew point 48°F
- 3 pm84°Fdew point 46°F
- 6 pm81°Fdew point 47°F
- 9 pm67°Fdew point 49°F
NOAA hourly normals (local standard time) from Gillette Campbell Airport (4 mi away); average wind 9 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)6 of 31
- Hot dayshigh 90°F or more12 of 31
- Wet daysat least 0.01 in of rain or melted snow8 of 31
- Notable rainat least 0.10 in4 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 1.7 in; a dry July brings about 0.8 in and a wet one about 2.4 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How July varies from year to year
- Warmest July, 1991-20202012: average high 95°F
- Coolest July1993: average high 73°F
- Wettest July1997: 3.9 in
- Driest July2002: 0.4 in
- Highest reading104°F (July 19, 2011)
- Lowest reading38°F (July 12, 2008)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 77°F | 86°F | 85°F |
| Normal low | 50°F | 57°F | 56°F |
| Wet days | 10 | 8 | 6 |
| Comfortable days | 16 | 6 | 6 |
| Daylight | 15.5 h | 15.1 h | 14.0 h |
Highs change by +9°F from June and -1°F into August.
Nearby alternatives in July
- Cooler: Keystone, SD107 mi · high 79°F · 12 wet days
How Gillette ranks in July
- Normal high208th warmest of 378 cities; 2nd of 4 in Wyoming
- Wet days152nd driest of 378
What to pack for Gillette in July
- Light, breathable clothing – highs near 86°F
- Layers – afternoons near 86°F but nights near 57°F
- A rain jacket or umbrella – rain on about 8 days
- Sunglasses and sunscreen – about 15.1 hours of daylight and highs near 86°F
Heating and cooling
July has 19 heating degree days and 227 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Gillette in July?
The normal high is 86°F and the normal low is 57°F. From 1991 to 2020 the hottest July reading was 104°F (July 19, 2011).
Does it rain a lot in Gillette in July?
About 8 days in July have at least 0.01 in of precipitation, and the normal total is 1.7 in. The wettest July in 1991-2020 was in 1997 (3.9 in); the driest was in 2002 (0.4 in).
Is July a good time to visit Gillette?
July ranks 6th of 12 months on our comfort score for Gillette (57 out of 100). It has about 6 comfortable days (judged by temperature only) and about 12 days at 90°F or hotter. The best months are May and June.
Where the numbers come from
- Temperature, rain, snowfall and snow depth: Gillette 4SE (USC00483855), 3.1 mi ESE of the city center, 4,640 ft (86 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Frost dates and humidity and wind by hour: Gillette Campbell Airport (USW00094023), 3.9 mi NNW of the city center, 4,354 ft (200 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Not available for this location: cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).