Climate averages 1991–2020
Lancaster weather
in July.
A very hot, very dry month: the 2nd warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a very hot month in Lancaster: daytime highs average 34.7°C and nights cool to about 19.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 3.8 mm of rain on roughly 1 day, which makes July a very dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 14 min on an average July day.
The nearest other city in this atlas is Palmdale (13 km away). In July its highs average 33.7°C, 0.9°C cooler than Lancaster, with 17 mm of rain.
Among the 498 cities listed in the United States, Lancaster ranks joint 37th of 498 for the warmest July highs and joint 95th of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Lancaster is 4.4°C warmer than that mean.
From July to August, average highs rise by 0.1°C to 34.8°C, and monthly rainfall falls from 3.8 mm to 1.4 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Lancaster climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 14.0°C4.5°C | 4.5°C | 41 | 4.6 | 10.110 h |
| February | 15.3°C5.0°C | 5.0°C | 47 | 5.0 | 10.911 h |
| March | 18.6°C6.7°C | 6.7°C | 31 | 4.0 | 11.912 h |
| April | 22.1°C8.7°C | 8.7°C | 11 | 1.9 | 13.013 h |
| May | 26.7°C12.3°C | 12.3°C | 3.6 | 1.0 | 14.014 h |
| June | 31.6°C16.0°C | 16.0°C | 1.3 | 0.3 | 14.414 h |
| July, selected | 34.7°C19.4°C | 19.4°C | 3.8 | 1.0 | 14.214 h |
| August | 34.8°C19.5°C | 19.5°C | 1.4 | 0.5 | 13.513 h |
| September | 31.5°C17.4°C | 17.4°C | 3.0 | 0.6 | 12.412 h |
| October | 25.0°C12.9°C | 12.9°C | 8.3 | 1.1 | 11.311 h |
| November | 18.3°C7.8°C | 7.8°C | 9.7 | 1.9 | 10.410 h |
| December | 13.3°C4.1°C | 4.1°C | 30 | 3.6 | 9.910 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Palmdale in JulyUnited States · 13 kmHigh 33.7°C · Low 19.2°C · 17 mm rain
- Santa Clarita in JulyUnited States · 50 kmHigh 31.6°C · Low 19.0°C · 2.7 mm rain
- Valencia, United States in JulyUnited States · 52 kmHigh 31.6°C · Low 19.0°C · 2.7 mm rain
- Burbank in JulyUnited States · 60 kmHigh 32.1°C · Low 18.9°C · 3.1 mm rain
- Pasadena (California), United States in JulyUnited States · 61 kmHigh 30.5°C · Low 17.2°C · 3.1 mm rain
- Glendale (California), United States in JulyUnited States · 63 kmHigh 30.4°C · Low 17.5°C · 3.1 mm rain
- El Monte in JulyUnited States · 71 kmHigh 31.7°C · Low 18.6°C · 1.6 mm rain
- West Covina in JulyUnited States · 72 kmHigh 31.5°C · Low 18.4°C · 1.6 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Lancaster) is explained once on the Lancaster year overview and on the Sources, method and limits page.