Rosamond weather in May

In May, Rosamond sees average daytime highs of 78°F and overnight lows near 54°F, with 0.1 in of rain across 1 wet days and about 13.8 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 76°F in the first days to 81°F by the end. The sky is clear or mostly clear about 72% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Rosamond's 6th-clearest and 2nd-windiest month. For the whole year in context, see Rosamond's year-round climate.

Daytime high
78°
5th warmest
Overnight low
54°
8th coldest
Rainfall
0.1 in
1 wet days
Daylight
13 h 48 min
4:54 AM – 6:44 PM
Cloud cover
26%
6th clearest
Wind
8 mph
2nd windiest
Solar energy
8.08 kWh/m²
Travel score
8.8
out of 10

Rosamond is census-designated place in Kern County, California, United States.

Density
134/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 76°F in the first days to 81°F by the end.

A typical May day in Rosamond reaches about 78°F in the afternoon and slips back to 54°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 89°F. Set against its neighbours, May runs about 8°F warmer than April and about 8°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17551
27552
37652
47652
57652
67652
77653
87653
97753
107753
117753
127753
137754
147854
157854
167854
177854
187854
197854
207855
217955
227955
237955
248055
258055
268056
278056
288156
298156
308257
318257

How May really feels in Rosamond

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Rosamond weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan57° / 39°1.64.69.94.7
Feb59° / 41°1.9510.75.2
Mar64° / 44°1.2411.76.9
Apr70° / 48°0.51.912.98.3
May78° / 54°0.1113.88.8
Jun86° / 60°0.10.314.36.8
Jul92° / 66°0.11.114.14.6
Aug92° / 66°0.10.513.34.6
Sep86° / 62°0.10.612.26.8
Oct76° / 53°0.31.111.18.9
Nov64° / 44°0.41.910.27.2
Dec56° / 39°1.23.69.74.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18119
28119
38218
48218
58218
68218
78218
88218
98218
108218
118119
128218
138218
148317
158317
168416
178416
188416
198416
208515
218614
228614
238614
248713
258713
268713
278713
288812
298812
308911
318911

Chance of precipitation in May

Any precipitation

Rosamond gets around 0.1 in of rain over 1 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 3% and peaks near 4% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
54
64
74
84
94
104
114
124
134
144
154
163
173
183
193
203
213
223
233
243
253
262
272
282
292
302
312

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
21991
22991
23991
24991
25991
26991
27991
28991
29982
30982
31982

Wind in May

Winds average 8 mph in May.

Across May, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
287light breeze
297light breeze
307light breeze
317light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:08 AM to 4:46 AM, and sunset from 6:31 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:086:31
213.45:076:32
313.45:066:33
413.55:056:34
513.55:046:35
613.55:036:35
713.65:026:36
813.65:016:37
913.65:006:38
1013.74:596:39
1113.74:586:40
1213.74:586:40
1313.74:576:41
1413.84:566:42
1513.84:556:43
1613.84:546:44
1713.84:546:44
1813.94:536:45
1913.94:526:46
2013.94:516:47
2113.94:516:47
2214.04:506:48
2314.04:506:49
2414.04:496:50
2514.04:486:50
2614.14:486:51
2714.14:476:52
2814.14:476:52
2914.14:466:53
3014.14:466:54
3114.14:466:54

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 8.08 kWh/m².

For context, solar energy here swings from a low near 3.03 kWh/m² to a high of 8.57 kWh/m² in June across the year — May's 8.08 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.8Intense
27.8Intense
37.8Intense
47.8Intense
57.9Intense
67.9Intense
77.9Intense
87.9Intense
97.9Intense
108.0Intense
118.0Intense
128.0Intense
138.0Intense
148.0Intense
158.1Intense
168.1Intense
178.1Intense
188.1Intense
198.1Intense
208.1Intense
218.2Intense
228.2Intense
238.2Intense
248.2Intense
258.2Intense
268.3Intense
278.3Intense
288.3Intense
298.3Intense
308.3Intense
318.4Intense
Planning a trip in May

Is May a good time to visit Rosamond?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.8
Sightseeing
2nd-best month of the year
8.2
Beach & pool
5th-best month of the year

May is one of the better times to visit Rosamond for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rosamond in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Rosamond sees daytime highs around 78°F and nights near 54°F. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Rosamond in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rosamond peaks around June 21 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJun 21UV 11Dec 16UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Rosamond in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Rosamond is worst in December — around 29 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (May, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateDec 1428 µg/m³May 1812 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar17Moderate
Apr15Moderate
May12Good
Jun14Moderate
Jul25Moderate
Aug26Moderate
Sep24Moderate
Oct18Moderate
Nov23Moderate
Dec29Moderate
Location & terrain

Where is Rosamond?

Rosamond sits at 34.9°N, 118.2°W, 2,343 ft above sea level, in United States. The nearest listed city is Lancaster, 12 mi away.

Topography around Rosamond

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Rosamond.

Within 2 miles, the terrain around Rosamond has only modest variations in elevation — a maximum elevation change of 761 ft around an average of 2,385 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,886 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,708 ft.

The land around Rosamond is covered by grassland (35%), bare terrain (35%) and artificial surfaces (21%) within 2 miles, grassland (60%) and bare terrain (34%) within 10 miles, and grassland (41%) and bare terrain (22%) within 50 miles.

2 miles
761 ft
10 miles
1,886 ft
50 miles
9,708 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Lancaster 12 mi · Palmdale 20 mi · Vincent 25 mi · Canyon Country 35 mi · Castaic 37 mi · Valencia 39 mi · Santa Clarita 39 mi · Stevenson Ranch 40 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Rosamond (34.8641°, -118.1634°, elevation 2,343 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).