Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Lagunitas-Forest Knolls features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 11 °C (51 °F) and 16 °C (62 °F) through the year, but rarely can drop to 3 °C (37 °F) or can rise to as high as 31 °C (89 °F). The average annual precipitation amounts to about 593 mm (23.4 inches) and receives 50 rainy days on the 1 mm (0.04 inches) threshold annually. Lagunitas-Forest Knolls enjoys an average of 3350 hours of sunshine throughout the year, and daylight varies from 9 hours 33 minutes to 14 hours 45 minutes per day.
The warmest months in Lagunitas-Forest Knolls are August, September and October, with daily mean temperatures ranging from 15 to 16 °C (59 - 62 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 11 °C (51 - 52 °F) throughout the day. On average each year, Lagunitas-Forest Knolls experiences 1 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 20°C (69°F) |
20°C (69°F) |
19°C (66°F) |
25°C (77°F) |
24°C (75°F) |
28°C (83°F) |
23°C (74°F) |
24°C (76°F) |
31°C (89°F) |
27°C (81°F) |
21°C (69°F) |
21°C (69°F) |
| Mean maximum | 17°C (63°F) |
18°C (65°F) |
18°C (65°F) |
21°C (69°F) |
21°C (70°F) |
23°C (73°F) |
21°C (71°F) |
22°C (72°F) |
26°C (79°F) |
25°C (77°F) |
19°C (66°F) |
17°C (64°F) |
| Average high | 13°C (56°F) |
14°C (57°F) |
14°C (57°F) |
15°C (59°F) |
16°C (61°F) |
18°C (64°F) |
17°C (64°F) |
18°C (65°F) |
19°C (67°F) |
18°C (65°F) |
16°C (60°F) |
13°C (56°F) |
| Daily mean | 11°C (51°F) |
11°C (52°F) |
11°C (52°F) |
12°C (54°F) |
13°C (56°F) |
15°C (59°F) |
15°C (59°F) |
16°C (60°F) |
16°C (62°F) |
15°C (59°F) |
12°C (55°F) |
11°C (51°F) |
| Average low | 8°C (47°F) |
8°C (47°F) |
9°C (48°F) |
10°C (50°F) |
11°C (52°F) |
12°C (55°F) |
13°C (55°F) |
13°C (56°F) |
14°C (57°F) |
12°C (54°F) |
10°C (50°F) |
8°C (47°F) |
| Mean minimum | 4°C (40°F) |
4°C (40°F) |
6°C (43°F) |
7°C (45°F) |
9°C (48°F) |
11°C (51°F) |
11°C (52°F) |
11°C (53°F) |
11°C (52°F) |
9°C (48°F) |
6°C (44°F) |
5°C (42°F) |
| Minimum | 3°C (38°F) |
3°C (37°F) |
5°C (41°F) |
6°C (43°F) |
7°C (45°F) |
10°C (50°F) |
11°C (51°F) |
11°C (52°F) |
10°C (50°F) |
8°C (47°F) |
5°C (41°F) |
4°C (39°F) |
Compare temperature, precipitation, sunshine, UV index in Lagunitas-Forest Knolls, California, United States with other places around the world.
Lagunitas-Forest Knolls usually has the most precipitation in January, February and December, with an average of 8 rainy days and 117 mm (4.6 inches) of precipitation per month. The driest months in Lagunitas-Forest Knolls are July, August and September. On average, 2 mm (0.1 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 118 (4.7) | 131 (5.1) | 82 (3.2) | 40 (1.6) | 21 (0.8) | 2 (0.1) | 2 (0.1) | 2 (0.1) | 2 (0.1) | 35 (1.4) | 54 (2.1) | 102 (4.0) |
| Average precipitation days (≥ 1 mm) | 9 | 8 | 10 | 5 | 2 | 0 | 0 | 0 | 0 | 2 | 5 | 9 |
The sunniest months in Lagunitas-Forest Knolls are May, June and July, when the sun shines an average of 11 hours 54 minutes a day. Least sunny months in Lagunitas-Forest Knolls: January, February and December receive an average of 6 hours 3 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 146 | 214 | 264 | 298 | 351 | 371 | 373 | 335 | 306 | 275 | 221 | 190 |
| Mean daily daylight hours | 9h 51m | 10h 47m | 11h 59m | 13h 12m | 14h 14m | 14h 45m | 14h 28m | 13h 33m | 12h 22m | 11h 9m | 10h 5m | 9h 33m |
Lagunitas-Forest Knolls experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Lagunitas-Forest Knolls UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 3 | 5 | 8 | 9 | 10 | 11 | 11 | 10 | 9 | 7 | 4 | 3 |
Discover in-depth weather details for every month in Lagunitas-Forest Knolls. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Lagunitas-Forest Knolls's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.