Weather in Amarillo in July
United States · 20-year averages, July
A hard month. July is a hard month in Amarillo, and worth planning around. Daytime highs average 34.4 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.
July ranks 12 of 12 — near the bottom of Amarillo's year. April is the month that works, and the swing between the two is 43 points, which is a different holiday rather than a slightly better one.
Rain on 10 days, 2 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for heat management rather than style: shade, water, and a schedule that gives up on the middle of the day.
What the averages hide
Averages flatten a month, and this one hides a few things: 15 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest July day reached 43.5 °C and the coldest night fell to 13 °C, and the wettest single day dropped 33 mm — roughly 56% of the month's rain in one day.
July is moderately variable: 5 mm in the driest year against 169 mm in the wettest, around an average of 59 mm. Roughly two Julys in three land near that average, and the third does something else entirely.
Wind is light at 11.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 49%.
How July sits in the year
This is a turning point in the year — June and August sit on opposite sides of it, so the month contains the change rather than following it.
Daylight in July
July is at or near the longest days of Amarillo's year: 14.3 hours of daylight, losing 0.5 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.
An inland climate
With no coast nearby, the year swings a fair way — 37.1 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage. At 1118 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly. Within July itself the daily swing is 14 °C, so mornings and afternoons need different clothes.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
July in Amarillo versus nearby
If Amarillo is one option among several, the nearby comparison is worth making. Lubbock is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Oklahoma City is close enough to be a coin toss — within a degree on temperature, 1 day less rain.
So: July is a compromise. April is 43 points better and is what Amarillo is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Amarillo
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 10.9 | -2.7 | 2 | 15 | 57 | 10 | 64 |
| February | 13 | -2 | 3 | 16 | 55 | 10.9 | 70 |
| March | 18.7 | 2.5 | 4 | 31 | 49 | 11.9 | 88 |
| April | 23.5 | 6.6 | 5 | 32 | 44 | 13 | 91 |
| May | 28.3 | 12 | 9 | 58 | 46 | 14 | 77 |
| June | 33.2 | 18 | 11 | 70 | 49 | 14.5 | 52 |
| July | 34.4 | 20.5 | 10 | 59 | 49 | 14.3 | 48 |
| August | 33.3 | 19.8 | 12 | 75 | 52 | 13.5 | 50 |
| September | 29.4 | 15.2 | 8 | 49 | 55 | 12.5 | 74 |
| October | 22.9 | 8.1 | 6 | 52 | 55 | 11.4 | 88 |
| November | 16.4 | 2 | 3 | 19 | 54 | 10.3 | 82 |
| December | 10.9 | -2.4 | 3 | 14 | 57 | 9.8 | 62 |
See all twelve months in Amarillo, or where else to go in July.
Planning the rest of the trip
- Flight time to Amarillo how long you are actually in the air
- Amarillo time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Amarillo keep training while you are there