Clearlake, California Climate
United States
Pop. 15,182 Elev. 434 m / 1,424 ft
TZ: America/Los_Angeles (UTC-7) ·
Clearlake has a dry climate with warm summers reaching 89°F (32°C) in August and cool winters averaging 39°F (4°C) in January. Rain falls on about 35 days per year (31.1 in / 791 mm total), with snow on 1 days and 7 in (171 mm) of annual accumulation. The city averages 227 sunny days per year and around 23 thunderstorm days. Ocean water temperatures reach 59°F (15°C) in summer.
| Temperature | 89°F (32°C) high | 39°F (4°C) low |
| Feels like | 90°F (32°C) high | 39°F (4°C) low |
| Rain | 35 days | 31.1 in (791 mm) /yr |
| Snow | 1 days | 6.7 in (171 mm) /yr |
| Sky | 227 sunny | 23 stormy |
| Wind | 1.9 mph (0.9 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, May, Jun, Jul, Sep, Oct
Sky & Air by Month
Cloud cover (%)
27
Jan 62
Feb 61
Mar 47
Apr 21
May 10
Jun 10
Jul 10
Aug 32
Sep 39
Oct 56
Nov 54
Dec Humidity (%)
56
Jan 71
Feb 69
Mar 62
Apr 50
May 43
Jun 48
Jul 42
Aug 55
Sep 65
Oct 74
Nov 77
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 33 mi Charles M. Schulz Sonoma County Airport (STS)
Ski resort 125 mi Sugar Bowl Resort
National park 2 mi
Mountain peak
(6,113 ft) 21 mi Goat Mountain
Hospital 1 mi Adventist Health Clear Lake Medical Office - Clearlake, Live Well Program
Hiking trail 38 mi Nature Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 59°F 15°C | 39°F 4°C | 1.1 in 28 mm | — | 25 |
| February | 56°F 13°C | 40°F 4°C | 8.5 in 215 mm | 1.6 in41 mm | 6 |
| March | 59°F 15°C | 42°F 5°C | 4.1 in 104 mm | 5.1 in130 mm | 12 |
| April | 68°F 20°C | 48°F 9°C | 0.7 in 19 mm | — | 14 |
| May | 77°F 25°C | 54°F 12°C | 0.3 in 8 mm | — | 24 |
| June | 85°F 29°C | 62°F 16°C | 0.1 in 1 mm | — | 28 |
| July | 87°F 30°C | 64°F 18°C | 0.1 in 3 mm | — | 29 |
| August | 89°F 32°C | 66°F 19°C | 0.0 in 1 mm | — | 30 |
| September | 82°F 28°C | 61°F 16°C | 1.2 in 29 mm | — | 21 |
| October | 70°F 21°C | 50°F 10°C | 2.3 in 59 mm | — | 15 |
| November | 63°F 17°C | 47°F 8°C | 4.3 in 110 mm | — | 10 |
| December | 56°F 13°C | 43°F 6°C | 8.4 in 214 mm | — | 13 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 25 | 1 |
| February | 6 | 4 |
| March | 12 | 4 |
| April | 14 | 0 |
| May | 24 | 0 |
| June | 28 | 0 |
| July | 29 | 0 |
| August | 30 | 0 |
| September | 21 | 2 |
| October | 15 | 2 |
| November | 10 | 3 |
| December | 13 | 7 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 52°F 11°C | 43°F 6°C |
| February | 51°F 11°C | 43°F 6°C |
| March | 51°F 10°C | 47°F 8°C |
| April | 51°F 10°C | 54°F 12°C |
| May | 49°F 9°C | 60°F 15°C |
| June | 50°F 10°C | 67°F 19°C |
| July | 52°F 11°C | 70°F 21°C |
| August | 55°F 13°C | 71°F 22°C |
| September | 57°F 14°C | 68°F 20°C |
| October | 59°F 15°C | 59°F 15°C |
| November | 55°F 13°C | 54°F 12°C |
| December | 54°F 12°C | 48°F 9°C |