ROOTED IN REAL DATA Historical data. Thoughtful planning. No weather guarantees.
California · Geographic reference lookup

Your climate reference
near Blacklake.

We connect a real Census place to the nearest agricultural NOAA station, then show the distance and the limitations. This is not a locally validated planting calendar.

CDP · Census 2026
Nearby stations disagree materially on freeze timing.

Inspect the alternatives and their source quality before choosing a historical reference. Proximity alone does not settle the difference.

A reference, not your back garden

11.2 miles NW
from the Census reference point.

The line connects Blacklake’s published Census internal point to the weather station. It does not measure terrain, elevation differences or your garden’s microclimate.

18.0 km straight-line distance · Schematic, not a navigation map
N
Census place point Weather station
The nearest reference

Pismo Beach

Seasonal freeze reference · USC00046943

Full station data
Proximity is not a climate-validation score. Place elevation is unavailable in this Census source, so we cannot verify the elevation difference. The nearest station is never silently replaced by a colder one to create a planting calendar.
Spring median · freezing cold seasonsFeb 1
Fall median · freezing cold seasonsJan 4 (next year)
Modeled annual freeze occurrence53.7%
Uncertainty, made visible

One date never tells
the whole season.

1991–2020 station normals
32°F minimum-temperature threshold

Last spring freeze

Among cold seasons with a freeze: probability of the last occurrence on this date or later.

10%Mar 13
30%Feb 21
50%Feb 1Median reference
70%Jan 4
90%Dec 18Prior year

The 10% date is later in spring than the median: a more cautious historical reference, still not a guarantee.

First fall freeze

Among cold seasons with a freeze: probability of the first occurrence on this date or earlier.

10%Dec 8
30%Dec 26
50%Jan 4Next yearMedian reference
70%Jan 31Next year
90%Feb 27Next year

The 10% date is earlier in fall than the median: a more cautious harvest-planning reference.

These percentages are conditional on a cold season containing a 32°F freeze; they are not probabilities across all years. They describe historical climate, not this season’s forecast. The spring and fall probability directions are intentionally different. A garden can be warmer or colder than the reference station.

Check the wider picture

Nearby station comparisons

Differences can signal exposure, elevation, location or data-quality effects.

NOAA referenceDistanceConditional spring medianConditional fall medianStatus
Pismo Beach11.2 miFeb 1Jan 4 (next year)Seasonal freeze reference
Santa Maria Public AP11.6 miFeb 4Dec 13Seasonal freeze reference
Twitchell Dam13.0 miFeb 4Dec 4Seasonal freeze reference

Available alternative-station median spread: spring 3 days; fall 31 days. This is a comparison of source references, not a measure of garden uncertainty.

Date probabilities apply among cold seasons with a 32°F freeze, not all years. Check each station’s annual occurrence and quality before comparing.

Know the geography

A traceable place.

Official Census name
Blacklake CDP
Census GEOID
0606935
Published internal point
35.0497, -120.5386
Land area
2.7 km²
Water area
0.0 km²

The published point is inside the Census geography. It is not your address and does not represent every neighborhood or elevation within the place.

Original Census Gazetteer
From climate to gardening

Make the next
decision locally.

A date window alone cannot tell you which crops are suitable today. Check the current forecast, soil warmth, cultivar maturity and regional extension guidance.

Explore crop-specific evidence Current NWS point forecast Find university extension resources

Find your local climate reference

Choose a state, then search its cities, towns and Census-designated places.

Choose a state to search the national Census place inventory.

    Census places are not ZIP codes. A nearby station is a reference, not a garden-level measurement. Distance and data limitations are shown before any calculation.