The BLVD in downtown Lancaster

Weather · September

Lancaster weather in September

Average highs of 91°F, lows of 57°F and 0.10 in of rain, from 30 years of weather records.

September is Lancaster’s 3rd warmest month, with average highs of 91°F and lows of 57°F. That is 6° cooler than August, and 14° above the yearly average high.

Average high
91°F
Average low
57°F
Precipitation
0.10 in
Wet days
1
Sunrise · sunset
6:35 AM · 7:00 PM

September across the year

  1. 59°31°Jan
  2. 62°35°Feb
  3. 67°40°Mar
  4. 73°45°Apr
  5. 82°53°May
  6. 91°62°Jun
  7. 98°67°Jul
  8. 98°65°Aug
  9. 91°57°Sep
  10. 80°46°Oct
  11. 67°35°Nov
  12. 58°30°Dec

High and low Rain

What to wear in September

  • Hot days: light, breathable clothes, a sun hat, sunscreen and plenty of water for anything outdoors.

September is good for

  • Early-morning or evening outings, with indoor plans for the afternoon heat

What’s on in Lancaster in September

See all upcoming events and school days off.

Around Lancaster

Lancaster - Western Hotel
Lancaster - Western Hotel - 20111210173757Tdhart59 · CC BY-SA 4.0
'Skyrockets in Flight' (Douglas D-558-2 Skyrocket (NACA 145 - 37975)), Lancaster
'Skyrockets in Flight' (Douglas D-558-2 Skyrocket (NACA 145 - 37975)) (27438601770)Alan Wilson from Stilton, Peterborough, Cambs, UK · CC BY-SA 2.0
Mural Jane S. Pinheiro, Lancaster
Mural Jane S. PinheiroMojavellama · CC0

See Lancaster

A look around town before you go.

An Antelope Valley driving film video thumbnail

A DRIVE AROUND TOWN

An Antelope Valley driving film

This recorded regional tour includes both Lancaster and Palmdale. It is a look at Antelope Valley roads, not a city-only route or a live traffic feed.

Watch on YouTube ↗

September compared with the months around it

MonthHighLowRain
August98°F65°F0.00 in
September91°F57°F0.10 in
October80°F46°F0.30 in

Planning a trip? See the best time to visit Lancaster and today’s forecast.

Questions

How hot does it get in Lancaster in September?

Average highs are 91°F and average lows 57°F, for a daily mean of 74°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Lancaster in September?

September averages 0.10 in of precipitation over about 1 days with at least 0.01 in. It is the 11th wettest month of the year.

What time is sunset in Lancaster in September?

Around mid-September the sun rises about 6:35 AM and sets about 7:00 PM, for roughly 12.4 hours of daylight.

Is September a good time to visit Lancaster?

The mildest months for visiting are April, May, October. September is hot, with Halloween events.

NOAA U.S. Climate Normals 1991–2020, Lancaster Wm J Fox Fld station (5 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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