Susanville weather in July

In July, Susanville sees average daytime highs of 85°F and overnight lows near 55°F, with 0.4 in of rain across 2.7 wet days and about 14.6 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 82°F in the first days to 86°F by the end. The sky is clear or mostly clear about 77% of the time in July, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of July to 14 h 12 min by month's end. Set against the rest of the year, July is Susanville's 2nd-clearest and 7th-windiest month. For the whole year in context, see Susanville's year-round climate.

Daytime high
85°
1st warmest
Overnight low
55°
12th coldest
Rainfall
0.4 in
2.7 wet days
Daylight
14 h 36 min
4:50 AM – 7:27 PM
Cloud cover
21%
2nd clearest
Wind
5 mph
7th windiest
Solar energy
8.22 kWh/m²
Travel score
6.9
out of 10

Susanville is city in and county seat of Lassen County, California, United States.

Density
733/km²
people per km²
Founded
1900

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 82°F in the first days to 86°F by the end.

A typical July day in Susanville reaches about 85°F in the afternoon and slips back to 55°F overnight — a 30°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 92°F. Set against its neighbours, July runs about 10°F warmer than June and on par with August.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18252
28252
38253
48353
58353
68353
78353
88454
98454
108454
118454
128554
138555
148555
158555
168555
178555
188555
198655
208655
218655
228656
238656
248656
258656
268656
278656
288656
298656
308655
318655

How July really feels in Susanville

Once humidity and wind are folded in, July 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

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

Susanville weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan38° / 22°3.59.69.19.40.0
Feb41° / 24°3.39.69.110.40.1
Mar46° / 28°3.210.59.211.71.3
Apr53° / 32°2.09.46133.2
May64° / 40°1.98.51.814.26.0
Jun75° / 48°0.94.80.314.88.0
Jul85° / 55°0.42.7014.66.9
Aug84° / 54°0.42.6013.67.3
Sep75° / 48°0.630.112.38.5
Oct62° / 39°1.14.51.210.96.4
Nov47° / 29°2.27.55.59.81.6
Dec37° / 22°3.810.59.69.20.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 77% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 12% of July, with mostly cloudy or overcast conditions the remaining 11%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38713
48713
58812
68911
78911
88911
99010
109010
119010
129010
139010
149010
159010
168911
178911
188911
198911
208911
219010
228911
238911
248911
258911
268911
278911
288911
298911
308911
318911

Chance of precipitation in July

Any precipitation

Susanville gets around 0.4 in of rain over 2.7 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 11% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
110
210
39
49
58
68
78
88
98
108
118
128
139
149
1510
1610
1710
1811
1911
2011
2111
2211
2311
2411
2511
2610
2710
2810
299
309
319

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 99% 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
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26982
27982
28982
29982
30991
31991

Wind in July

Winds average 5 mph in July.

Across July, 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.

0246810151015202531
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
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 54 min at the start of July to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 4:40 AM to 5:03 AM, and sunset from 7:32 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:407:32
214.84:417:31
314.84:417:31
414.84:427:31
514.84:427:31
614.84:437:31
714.84:437:31
814.84:447:30
914.84:457:30
1014.74:457:30
1114.74:467:29
1214.74:477:29
1314.74:477:28
1414.74:487:28
1514.64:497:27
1614.64:507:27
1714.64:507:26
1814.64:517:26
1914.54:527:25
2014.54:537:24
2114.54:547:24
2214.54:547:23
2314.44:557:22
2414.44:567:21
2514.44:577:20
2614.44:587:20
2714.34:597:19
2814.35:007:18
2914.35:017:17
3014.25:027:16
3114.25:037:15

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 8.22 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 8.22 kWh/m² in July across the year — July's 8.22 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.3Intense
28.3Intense
38.4Intense
48.4Intense
58.4Intense
68.4Intense
78.4Intense
88.4Intense
98.3Intense
108.3Intense
118.3Intense
128.3Intense
138.3Intense
148.3Intense
158.2Intense
168.2Intense
178.2Intense
188.2Intense
198.1Intense
208.1Intense
218.1Intense
228.1Intense
238.0Intense
248.0Intense
258.0Intense
268.0Intense
278.0Intense
287.9Intense
297.9Intense
307.9Intense
317.9Intense
Planning a trip in July

Hazard calendar for Susanville

In seasonPeak

None of Susanville's seasonal hazards are active in July. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Susanville's rainy season runs November–May, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Susanville?

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

6.9
Sightseeing
4th-best month of the year
8.7
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Susanville for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Susanville in July

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

In July, Susanville sees daytime highs around 85°F and nights near 55°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Susanville in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Susanville peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 23UV 11Dec 13UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Moderate

Air quality in Susanville in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Susanville is worst in August — around 148 µg/m³ PM2.5 (unhealthy), about 33.7× the cleanest month (December, 4 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyGoodAug 16136 µg/m³Dec 195 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb6Good
Mar8Good
Apr9Good
May8Good
Jun7Good
Jul55Poor
Aug148Unhealthy
Sep45Poor
Oct8Good
Nov6Good
Dec4Good
Location & terrain

Where is Susanville?

Susanville sits at 40.4°N, 120.7°W, 4,186 ft above sea level, in United States. The nearest listed city is Paradise, 68 mi away.

Topography around Susanville

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

Within 2 miles, the terrain around Susanville has only modest variations in elevation — a maximum elevation change of 735 ft around an average of 4,308 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,652 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,543 ft.

The land around Susanville is covered by grassland (58%) and trees (22%) within 2 miles, trees (50%) and grassland (45%) within 10 miles, and trees (50%) and grassland (40%) within 50 miles.

2 miles
735 ft
10 miles
3,652 ft
50 miles
8,543 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Paradise 68 mi · Spanish Springs 73 mi · Sun Valley 73 mi · Reno 76 mi · Sparks 77 mi · Chico 79 mi · Oroville 79 mi · Truckee 79 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 Susanville (40.4163°, -120.653°, elevation 4,186 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).