Elko weather in September

In September, Elko sees average daytime highs of 76°F and overnight lows near 47°F, with 0.7 in of precipitation across 3.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 81°F in the first days to 70°F by the end. The sky is clear or mostly clear about 65% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Elko's 2nd-clearest and 12th-windiest month. For the whole year in context, see Elko's year-round climate.

Daytime high
76°
4th warmest
Overnight low
47°
9th coldest
Precipitation
0.7 in
3.8 wet days
Daylight
12 h 18 min
5:29 AM – 5:45 PM
Cloud cover
29%
2nd clearest
Wind
5 mph
12th windiest
Solar energy
5.87 kWh/m²
Travel score
8.3
out of 10

Elko is city in Elko County, Nevada, United States.

Density
439/km²
people per km²
Founded
1868

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 81°F in the first days to 70°F by the end.

A typical September day in Elko reaches about 76°F in the afternoon and slips back to 47°F overnight — a 28°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 85°F. Set against its neighbours, September runs about 10°F cooler than August and about 14°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18253
28253
38153
48152
58052
68051
77951
87950
97850
107849
117749
127749
137648
147648
157647
167547
177547
187446
197446
207446
217345
227345
237345
247244
257244
267144
277143
287043
297042
306942

How September really feels in Elko

Once humidity and wind are folded in, September 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

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

Elko weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan33° / 15°1.68.98.69.40.0
Feb37° / 18°1.27.87.210.40.0
Mar46° / 25°1.79.36.411.71.3
Apr54° / 31°2.111.15.513.13.3
May65° / 40°1.99.11.814.26.1
Jun77° / 49°0.840.214.97.8
Jul88° / 59°0.21.9014.65.7
Aug86° / 57°0.31.7013.66.4
Sep76° / 47°0.73.80.212.38.3
Oct62° / 36°1.04.91.210.96.1
Nov46° / 24°1.36.559.71.4
Dec33° / 14°1.68.589.10.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18416
28416
38317
48317
58317
68317
78317
88317
98218
108218
118119
128119
138119
148020
158119
168119
178119
188020
198020
208020
218020
228020
238020
248020
258020
267921
277822
287822
297822
307723

Chance of precipitation in September

Any precipitationSnow

Elko gets around 0.7 in of rain and snow over 3.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 12% and peaks near 15% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202530
Rain chance (%)Snow chance (%)
180
290
390
4100
5100
6100
7110
8110
9110
10120
11120
12120
13130
14131
15131
16131
17131
18131
19131
20131
21131
22131
23131
24142
25142
26142
27142
28142
29142
30152

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September 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%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 5 mph in September, the calmest month.

Across September, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 5:14 AM to 5:44 AM, and sunset from 6:11 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:146:11
212.95:156:10
312.95:166:08
412.85:176:06
512.85:186:05
612.75:196:03
712.75:206:01
812.65:215:59
912.65:225:58
1012.55:235:56
1112.55:245:54
1212.55:255:52
1312.45:265:51
1412.45:275:49
1512.35:285:47
1612.35:295:45
1712.25:305:44
1812.25:315:42
1912.15:325:40
2012.15:335:38
2112.05:345:37
2212.05:365:35
2311.95:375:33
2411.95:385:31
2511.85:395:30
2611.85:405:28
2711.85:415:26
2811.75:425:24
2911.75:435:23
3011.65:445:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.87 kWh/m².

For context, solar energy here swings from a low near 2.26 kWh/m² to a high of 8.18 kWh/m² in July across the year — September's 5.87 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.7Intense
26.6Intense
36.5Intense
46.5Intense
56.5Intense
66.4Intense
76.3Intense
86.3Intense
96.2Intense
106.2Intense
116.1Intense
126.1Intense
136.0Intense
146.0Bright
155.9Bright
165.8Bright
175.8Bright
185.7Bright
195.7Bright
205.6Bright
215.6Bright
225.5Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.1Bright
305.0Bright
Planning a trip in September

Is September a good time to visit Elko?

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

8.3
Sightseeing
1st-best month of the year
6.9
Beach & pool
4th-best month of the year

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

What to pack for Elko in September

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

In September, Elko sees daytime highs around 76°F and nights near 47°F. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Elko in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Elko peaks around June 21 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 21UV 10Nov 23UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar5High
Apr6High
May8Very high
Jun10Extreme
Jul10Very high
Aug9Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec2Moderate

Air quality in Elko in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Elko is worst in August — around 18 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (December, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1717 µg/m³Dec 185 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar9Good
Apr9Good
May10Good
Jun9Good
Jul11Good
Aug18Moderate
Sep12Good
Oct7Good
Nov6Good
Dec4Good
Location & terrain

Where is Elko?

Elko sits at 40.8°N, 115.8°W, 5,066 ft above sea level, in United States. The nearest listed city is Twin Falls, 137 mi away.

Topography around Elko

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

Within 2 miles, the terrain around Elko has only modest variations in elevation — a maximum elevation change of 548 ft around an average of 5,171 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,530 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,201 ft.

The land around Elko is covered by grassland (38%) and artificial surfaces (30%) within 2 miles, grassland (83%) within 10 miles, and grassland (74%) within 50 miles.

2 miles
548 ft
10 miles
2,530 ft
50 miles
7,201 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Twin Falls 137 mi · Tooele 183 mi · Kuna 187 mi · Nampa 191 mi · Magna 192 mi · Boise 193 mi · Syracuse 194 mi · Meridian 194 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 Elko (40.8324°, -115.7631°, elevation 5,066 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).