How to Build and Maintain a Snow Stake & Snow Board for Accurate Snow Measurements

Snowfall is one of the most visually striking forms of weather, but it is also one of the most difficult to measure accurately. Wind redistribution, compaction, melting, sublimation, and uneven accumulation all conspire to make a simple “how deep is the snow?” question surprisingly complex.

That’s why professional meteorologists, cooperative observers, and serious weather enthusiasts rely on two fundamental tools:

• Snow stakes – used to measure total snow depth on the ground
• Snow boards – used to measure new snowfall over a defined time period

This article serves as a complete field guide to building, installing, and maintaining these tools so your snow measurements are accurate, repeatable, and comparable to official observations. Whether you’re contributing to a citizen science network or simply want to improve the quality of your backyard weather data, mastering proper snow measurement technique is essential.

1. Why Accurate Snow Measurement Matters

Snowfall data isn’t just trivia — it has real-world applications:

• Weather forecasting verification
• Climate trend analysis
• Hydrology and runoff forecasting
• Transportation and infrastructure planning
• Public safety and emergency response

Inconsistent measurement methods introduce noise into datasets. Over time, this can distort snowfall climatology and misrepresent trends. Standardized snow stakes and boards help minimize these errors.

2. Snow Depth vs Snowfall: A Critical Distinction

Before building anything, it’s important to understand what you are measuring.

Snow Depth

• The total depth of snow on the ground at a given time
• Influenced by compaction, melting, settling, and drifting
• Measured using a snow stake

Snowfall

• The amount of new snow that has fallen over a defined observation period (typically 6 or 24 hours)
• Requires a flat, undisturbed surface
• Measured using a snow board

Using the wrong tool for the wrong metric is one of the most common snow measurement errors.

3. The Snow Stake: Purpose and Design

What Is a Snow Stake?

A snow stake is a permanently installed vertical ruler that allows observers to track total snow depth without disturbing the snowpack.

Key Characteristics of a Good Snow Stake

• High contrast markings (black on white or vice versa)
• Weather-resistant material
• Firmly anchored and perfectly vertical
• Installed in a representative location

Common Materials

4. Building a Snow Stake (Step-by-Step)

Materials Needed

• 1–2 inch diameter PVC or wood post (6–8 feet long)
• Waterproof measuring tape or ruler
• Permanent outdoor paint or tape
• Level
• Post driver or auger
• Concrete or gravel (optional, for anchoring)

Step 1: Determine Length

• Minimum exposed height: 4 feet
• In high-snow regions: 6–8 feet recommended
• Leave at least 2 feet underground for stability

Step 2: Mark Measurement Intervals

Best practice:

• Mark every 1 inch
• Highlight every 6 inches
• Emphasize each foot with bold markings

Use:

• UV-resistant paint
• Or engraved / burned markings for wood

Step 3: Install the Stake

• Drive or set the stake straight into the ground
• Use a level on two perpendicular sides
• Ensure it remains vertical after settling

Step 4: Verify Zero Reference

The 0 inch mark must be flush with the ground surface, not the grass tips or leaf litter. Clear the area before installation.

5. Selecting the Ideal Snow Stake Location

Location matters as much as construction.

Best Placement Guidelines

• Open, level area
• Away from buildings, trees, fences, and walls
• At least 2× the height of nearby obstructions away
• Representative of surrounding terrain

Locations to Avoid

• Wind-scoured ridges
• Snow drift zones
• Roof runoff areas
• Shaded spots that alter melt rates

6. The Snow Board: The Gold Standard for Snowfall Measurement

What Is a Snow Board?

A snow board is a flat, portable surface placed on the ground to collect snowfall over a set period.

Why Boards Are Necessary

Snowfall accumulates unevenly on natural surfaces. Boards provide:

• A clean reference surface
• Reduced compaction
• Repeatable measurements

Standard Dimensions

• 16 x 16 inches (most common)
• 12 x 12 inches acceptable in limited space
• Thickness: ½–¾ inch

7. Building a Snow Board

Materials Needed

• Plywood, PVC board, or composite decking
• Exterior white paint (flat, non-gloss)
• Measuring ruler
• Sandpaper
• Optional: non-skid underside material

Step 1: Cut and Smooth

• Square edges precisely
• Sand edges to prevent snow buildup ridges

Step 2: Paint the Surface

• Flat white minimizes solar heating
• Avoid glossy finishes
• Apply at least two coats

Step 3: Label the Board

Mark:

• “Snow Board”
• Orientation arrow (optional)
• Owner or station ID

8. Proper Snow Board Placement

Placement Rules

• Place on level ground
• Flush with surrounding surface
• Avoid compacting snow beneath it
• Do not elevate the board

Number of Boards

Professionals often use:

• Two boards (rotating system)
• One collecting snow
• One clean and ready for reset

9. Measuring Snowfall Using a Snow Board

Measurement Schedule

Standard intervals:

• Every 6 hours (professional)
• Or 24 hours (daily observers)

Measurement Technique

1. Insert ruler vertically to the board surface
2. Read depth to nearest 0.1 inch
3. Take multiple readings if snow is uneven
4. Average the measurements
5. Clear the board completely after measurement

Why Averaging Matters

Snow doesn’t fall evenly, even on boards. Averaging reduces micro-scale variability.

10. Measuring Snow Depth Using a Snow Stake

Best Practices

• Measure at consistent times daily
• Avoid leaning or compressing snow
• Read to nearest 0.5 inch (or finer if possible)

Drift Considerations

If drifting is present:

• Take multiple stake-adjacent measurements
• Average with nearby representative spots
• Never report a drift maximum as depth

11. Recording Standards and Data Integrity

What to Record

• Date and time
• Snowfall (new)
• Snow depth (total)
• Notes on wind, melting, or mixed precipitation

Example Observation Log

Units

• Use inches (U.S.)
• Be consistent
• Avoid rounding excessively

12. Common Measurement Errors to Avoid

• Measuring from grass tips
• Using elevated boards
• Letting boards drift
• Estimating instead of measuring
• Measuring near obstructions

These errors compound over time and reduce dataset reliability.

13. Maintaining Snow Stakes and Boards

Seasonal Maintenance

• Re-level stake each fall
• Repaint faded markings
• Inspect for warping or cracks

During Winter

• Brush snow lightly from stake markings
• Avoid knocking or leaning boards
• Replace damaged boards immediately

Off-Season Storage

• Store boards flat
• Keep out of direct sunlight
• Clean and repaint annually

14. Snow Measurement in Windy Environments

In windy climates:

• Use sheltered but open locations
• Increase number of measurement points
• Emphasize snowfall boards over depth

Some observers maintain multiple boards to average wind effects.

15. Snow Measurement and Citizen Science

Proper snow measurement contributes to:

• Cooperative observer programs
• Local climatology archives
• Research datasets
• Improved forecast verification

High-quality backyard data is valuable when collected correctly.

16. Teaching Snow Measurement to New Observers

For education:

• Start with boards before stakes
• Emphasize consistency over precision
• Encourage note-taking
• Use photos to document conditions

17. Snow Measurement in Mixed Precipitation Events

When rain, sleet, and snow mix:

• Measure snowfall separately from liquid equivalent
• Note compaction and melting
• Reset boards more frequently if melting occurs

18. Advanced Tips for Enthusiasts

• Use calipers for crust thickness
• Track snow density alongside depth
• Compare board snowfall vs ground accumulation
• Photograph boards before clearing

19. Why Standardization Matters

Snowfall data is only useful when it can be compared:

• Between storms
• Between seasons
• Between locations

Snow stakes and boards provide that common language.

20. Conclusion

Accurate snow measurement is both an art and a discipline. Snow stakes and snow boards transform winter weather from subjective observation into reliable data. With careful construction, proper placement, consistent technique, and diligent maintenance, anyone can collect snowfall measurements that stand up to professional standards.

In meteorology, precision matters — and it begins with how you measure the snow beneath your feet.