United States · 1991–2020

Best time to visit
Del Sur.

May leads for comfortable weather in Del Sur: typically 27.5°C by day, 12°C at night, with 3 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high27.5°C

Typical low12°C

Rain in May3 mm

Comfort

May

May · April · October

83climate match

Beach

June

June · July · May

76climate match

Outdoors

March

March · April · November

89climate match

The weakest month is December, scoring 38 against May’s 83 — days reach only 14.1°C, 10° below the 24°C the score treats as ideal, and nights drop to -1.3°C.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

4114.8° / -0.4°

Feb

4816.3° / 1.5°

Mar

6619.6° / 4.3°

Apr

8222.7° / 7.4°

May

8327.5° / 12°

Jun

6832.8° / 16.5°

Jul

5036.5° / 19.7°

Aug

5236.6° / 18.4°

Sep

6833° / 13.9°

Oct

7926.5° / 7.8°

Nov

6119.4° / 1.8°

Dec

3814.1° / -1.3°

Monthly climate evidence for Del Sur — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	14.8°C	-0.4°C	38 mm	4.1	10 h 04	41	Strong coverage
February	16.3°C	1.5°C	45 mm	4.1	10 h 53	48	Strong coverage
March	19.6°C	4.3°C	24 mm	3.2	11 h 52	66	Strong coverage
April	22.7°C	7.4°C	10 mm	1.6	13 h 00	82	Strong coverage
May	27.5°C	12°C	3 mm	0.5	13 h 57	83	Strong coverage
June	32.8°C	16.5°C	1 mm	0.1	14 h 28	68	Strong coverage
July	36.5°C	19.7°C	4 mm	0.4	14 h 16	50	Strong coverage
August	36.6°C	18.4°C	0 mm	0	13 h 27	52	Strong coverage
September	33°C	13.9°C	3 mm	0.2	12 h 21	68	Strong coverage
October	26.5°C	7.8°C	9 mm	1.1	11 h 15	79	Strong coverage
November	19.4°C	1.8°C	9 mm	1.6	10 h 18	61	Strong coverage
December	14.1°C	-1.3°C	29 mm	3.2	9 h 50	38	Strong coverage

What has changed

Del Sur runs +1.8°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.4

Feb

+1.2

Mar

+1.8

Apr

+2.2

May

+1.3

Jun

+2.2

Jul

+2.1

Aug

+2.9

Sep

+2.4

Oct

+1.8

Nov

+1.4

Dec

+0.9

May daytime highs, 2011–2025. Last recorded: 29.0°C.

Records at LANCASTER, 1974–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C31 Jan 2003	-16.1°C14 Jan 2007	41 mm13 Jan 1993	189 mm1993 · driest 0 mm in 2003	51
February	28.9°C28 Feb 2026	-11.7°C4 Feb 1979	70 mm16 Feb 1980	158 mm1998 · driest 0 mm in 2020	52
March	35.0°C20 Mar 2026	-8.3°C4 Mar 2002	74 mm1 Mar 1983	141 mm1983 · driest 0 mm in 1999	52
April	35.6°C28 Apr 2007	-4.4°C5 Apr 2009	41 mm17 Apr 2000	57 mm2020 · driest 0 mm in 1979	53
May	41.1°C28 May 2003	0.0°C1 May 2011	26 mm8 May 1977	28 mm1977 · driest 0 mm in 2004	53
June	46.1°C30 Jun 2013	4.4°C7 Jun 1988	21 mm5 Jun 1993	21 mm1993 · driest 0 mm in 1994	53
July	46.1°C7 Jul 2024	8.3°C10 Jul 1983	40 mm19 Jul 2015	60 mm2015 · driest 0 mm in 1983	53
August	43.9°C16 Aug 2020	7.8°C16 Aug 1987	91 mm20 Aug 2023	93 mm2023 · driest 0 mm in 2011	51
September	45.0°C2 Sep 2022	2.8°C28 Sep 2013	28 mm10 Sep 1976	32 mm1976 · driest 0 mm in 2004	52
October	40.0°C2 Oct 2024	-7.7°C31 Oct 2019	39 mm31 Oct 1987	61 mm1987 · driest 0 mm in 1986	52
November	30.6°C24 Nov 2017	-9.4°C21 Nov 1979	33 mm21 Nov 2013	79 mm2025 · driest 0 mm in 1974	52
December	26.1°C6 Dec 1977	-16.7°C24 Dec 1984	63 mm28 Dec 2004	136 mm1984 · driest 0 mm in 2000	50

Typical days per month at LANCASTER, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	<1	0	18	1
February	<1	0	11	1
March	6	<1	5	<1
April	12	4	1	<1
May	21	12	0	<1
June	27	22	0	0
July	31	30	0	<1
August	31	30	0	0
September	28	24	0	<1
October	20	9	1	<1
November	5	<1	12	<1
December	0	0	20	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 86); on 2011–2025 it is April (87). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in LANCASTER’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	11%	13%	4%	12%	12.4–17.1°C
February	28%	14%	5%	14%	13.1–19.3°C
March	45%	11%	3%	8%	15.7–23.1°C
April	68%	5%	<1%	2%	18.9–25.0°C
May	86%	2%	<1%	0%	23.9–30.0°C
June	98%	<1%	<1%	0%	29.6–35.3°C
July	99%	1%	<1%	<1%	33.9–38.7°C
August	99%	<1%	<1%	<1%	33.4–37.5°C
September	97%	2%	<1%	<1%	29.3–34.9°C
October	86%	3%	<1%	1%	24.0–29.0°C
November	47%	6%	1%	2%	16.7–21.3°C
December	12%	10%	3%	8%	12.1–16.9°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1975Each stripe is one year’s mean temperature against the 48-year average. Warmest: 2021. Coolest: 1998.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5342464
NOAA station: USW00003159 · LANCASTER
Station distance: 9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 34.69°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from LANCASTER is what differs

Lancaster→Rosamond→Quartz Hill→Leona Valley→Antelope Acres→Oban→

Or put two places side by side: Del Sur vs Lancaster

Best time to visitDel Sur.

May

June

March

The whole year,without the guesswork.

Del Sur runs +1.8°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Del Sur.

The whole year,
without the guesswork.

Del Sur runs +1.8°C
on the 1961–1990 baseline.

Nearby, measured,
and named.