Photo: CameronK23 · CC BY 3.0Lake Sherwood reaches 100° on about 14 days a year, more than 93% of U.S. towns
Midwinter brings lows of about 46°. Seasons differ by 41°, from the coldest nights to the warmest afternoons. In January, nights here are milder than in 95% of U.S. towns. Long walks are most pleasant from October to July, when afternoons reach 66–84°.
A year in Lake Sherwood at a glance
Each month’s typical high and low, and what it brings.
What stands out about Lake Sherwood’s climate
Compared with towns across the U.S., with Lake Sherwood’s place in California beside it.
What a year in Lake Sherwood feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 14 days a year reach 100°
And 76 days reach 90°. Frost and day counts come from NOAA’s station at Northridge Cal State, CA, 22 miles from the town’s center, 230 ft lower.
The 2023 USDA map puts Lake Sherwood’s center in zone 10b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 35°. Plant labels use the zone; frost dates tell you when to plant.
90° days by month
Average days at 90° or more
About 15 inches of rain a year
February is the wettest month and August the driest. Rain falls on about 36 days a year. Snow is rare: about 0.0" in a normal year at Northridge Cal State, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Lake Sherwood
43% of the work is heating, so air conditioning is the bigger bill. No month averages under 55°.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Northridge Cal State, CA.
Living with Lake Sherwood’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 10b. Frost comes about 1 winter in 5, so the growing year is set by heat, not cold: 14 days at 100° make midsummer the hard season for gardens.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, May, June, July, October, November and December. 10 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Lake Sherwood from natural hazards, river flooding is the largest share (39%). Normals are averages; the hazards page covers the extremes.
Natural hazards →Lake Sherwood and its neighbors
Thousand Oaks has the coldest January nights next door (45°, 1° colder) and Thousand Oaks the hottest July afternoons (85°, 1° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Lake Sherwood’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Lake Sherwood, CA | 46° | 84° | 15" | 0.0" |
| Ewa Beach, HI | 62° | 87° | 17" | 0.0" |
| Green, OR | 37° | 86° | 32" | 0.0" |
| Port Isabel, TX | 52° | 92° | 26" | 0.2" |
| Sierra Vista Southeast, AZ | 32° | 91° | 15" | 0.7" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Lake Sherwood averaged 2.5° warmer than the 1900s. The biggest change is in January (+3.3°).
A bigger shift than in all but 73 U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Lake Sherwood compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Lake Sherwood’s place among California’s.
Lake Sherwood weather by month
Highs, lows and precipitation from NOAA’s grid at Lake Sherwood’s center; snow, wet days and snow on the ground from Northridge Cal State, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 67° | 46° | 3.5" | 0.0" | 6 | 0 | 53° – 62° |
| February | 66° | 45° | 3.8" | 0.0" | 7 | 0 | 51° – 63° |
| March | 68° | 47° | 2.4" | 0.0" | 5 | 0 | 51° – 65° |
| April | 71° | 48° | 0.7" | 0.0" | 3 | 0 | 56° – 63° |
| May | 74° | 52° | 0.3" | 0.0" | 2 | 0 | 59° – 68° |
| June | 78° | 56° | 0.1" | 0.0" | 1 | 0 | 63° – 70° |
| July | 84° | 60° | 0.0" | 0.0" | 0 | 0 | 69° – 78° |
| August | 86° | 61° | 0.0" | 0.0" | 0 | 0 | 70° – 77° |
| September | 84° | 61° | 0.1" | 0.0" | 1 | 0 | 69° – 78° |
| October | 78° | 56° | 0.6" | 0.0" | 3 | 0 | 63° – 75° |
| November | 72° | 51° | 1.0" | 0.0" | 4 | 0 | 56° – 66° |
| December | 66° | 45° | 2.9" | 0.0" | 6 | 0 | 53° – 61° |
| Year | 74° | 52° | 15.2" | 0.0" | 36 | 0 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 51° to 65°. June is the most reliable, staying within 7°.
Where Lake Sherwood’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Lake Sherwood’s center.
- Snow: Northridge Cal State, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Northridge Cal State, CA, 22 miles from the town’s center, 230 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Lake Sherwood’s climate
What is the weather like in Lake Sherwood?
A typical July afternoon reaches 84°, a January night drops to 46°, and snow is almost unheard of. Milder January nights than 95% of U.S. towns; cooler July afternoons than 60% of U.S. towns.
How cold does it get in Lake Sherwood in winter?
February nights average 45°. A night at 32° or below comes in only some winters (0.6 a year on average). In the coldest February of the last 30 years the month averaged 51°.
How much snow does Lake Sherwood get?
About 0.0 inches in a normal winter at Northridge Cal State, CA, so most winters see none.
How hot does it get in Lake Sherwood?
July, with a typical high of 84° and a low of 60°. About 76 days a year reach 90° and 14 reach 100° (Northridge Cal State, CA).
When is the first and last frost in Lake Sherwood?
Most years have no frost at all: a 32° night comes in about 18% of winters at Northridge Cal State, CA, usually in December or January.
What growing zone is Lake Sherwood in?
Zone 10b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 35°.
What is the best time of year to visit Lake Sherwood?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, May, June, July, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Lake Sherwood getting warmer?
Yes: 1991–2020 averaged 2.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than all but 73 U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Lake Sherwood.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.