Lancaster, CA weather in May
May in Lancaster: warm and dry. Highs 82°F, lows 53°F, rain on about 1 day. A good month for most outdoor plans.
- Normal high
- 82°F
- Normal low
- 53°F
- Wet days
- 1
- 0.1 in total
- Muggy days
- 0
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 77°F | 87°F |
| Normal low | 49°F | 57°F |
| Chance of a wet day | 4% | 2% |
| Sunrise / sunset | 6:02 am / 7:37 pm | 5:40 am / 7:59 pm |
| Daylight | 13.6 h | 14.3 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical May day
- 6 am57°Fdew point 38°F
- 9 am72°Fdew point 37°F
- Noon79°Fdew point 34°F
- 3 pm79°Fdew point 36°F
- 6 pm72°Fdew point 38°F
- 9 pm64°Fdew point 39°F
NOAA hourly normals (local standard time) from Lancaster Wm J Fox Fld (5 mi away); average wind 15 mph; clear or few clouds in 88% of daytime hours, mostly cloudy or overcast in 10%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F11 of 31
- Hot dayshigh 90°F or more7 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow1 of 31
- Notable rainat least 0.10 in0 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 0.1 in; a dry May brings about 0.0 in and a wet one about 0.07 in (25th and 75th percentiles). Days with half an inch or more are rare.
How May varies from year to year
- Warmest May, 1991-20202001: average high 92°F
- Coolest May1998: average high 68°F
- Wettest May1998: 0.9 in
- Driest May1991: no measurable precipitation
- Highest reading106°F (May 28, 2003)
- Lowest reading32°F (May 1, 2011)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 73°F | 82°F | 91°F |
| Normal low | 45°F | 53°F | 62°F |
| Wet days | 2 | 1 | 0 |
| Comfortable days | 16 | 11 | 4 |
| Daylight | 13.1 h | 14.0 h | 14.4 h |
Highs change by +9°F from April and +9°F into June.
Nearby alternatives in May
- Warmer: Palm Springs, CA109 mi · high 95°F · 0 wet days
- Cooler: Burbank, CA37 mi · high 75°F · 2 wet days
How Lancaster ranks in May
- Normal high113th warmest of 378 cities; 11th of 60 in California
- Wet days11th driest of 378
- Comfortable days202nd most of 339
What to pack for Lancaster in May
- Layers – afternoons near 82°F but nights near 53°F
Heating and cooling
May has 69 heating degree days and 147 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Lancaster in May?
The normal high is 82°F and the normal low is 53°F. From 1991 to 2020 the hottest May reading was 106°F (May 28, 2003).
Does it rain a lot in Lancaster in May?
About 1 days in May have at least 0.01 in of precipitation, and the normal total is 0.1 in. The wettest May in 1991-2020 was in 1998 (0.9 in); the driest was in 1991, with no measurable precipitation.
Is May a good time to visit Lancaster?
May ranks 4th of 12 months on our comfort score for Lancaster (67 out of 100). It has about 11 comfortable days and about 7 days at 90°F or hotter. The best months are March and April.
Where the numbers come from
- Temperature, rain, frost dates, humidity and wind by hour and cloud cover: Lancaster Wm J Fox Fld (USW00003159), 5.2 mi NW of the city center, 2,338 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Palmdale (USC00046624), 8.0 mi SSE of the city center, 2,612 ft (260 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: General William J. Fox Airfield Airport (723816-03159), 5.2 mi NW of the city center, 2,338 ft . Hourly observations, 1991-2020.