Traditional pattern, public domain. Documented in Ruth Finley's 'Old Patchwork Quilts and the Women Who Made Them,' 1929.
A nine-patch block featuring a central square surrounded by flying-geese-like units in the side positions and half-square triangle corners, creating the look of a spinning weathervane. Strong directional movement makes this block visually dynamic.
The Weathervane block has been documented since the mid-1800s and was included in Ruth Finley's seminal 1929 book. Its design mimics the directional arrow of a farm weathervane, an essential tool for farmers who needed to read wind direction for planting and harvesting decisions.
Weathervanes were ubiquitous on American farms and homesteads, making this a naturally relatable design for rural quilters. The block's spinning quality connects it to other motion-themed blocks like Pinwheel and Windmill. It was especially popular in the agricultural Midwest.
Also known as: Weather Vane, Windmill Star
finished Block Size
12 inches
seam Allowance
1/4 inch
grid Basis
3x3 grid (each unit 4 inches finished)
units Required
4 HST corner units, 4 compound side units (rectangle + small triangle), 1 center square
All measurements include 1/4" seam allowance unless noted.
| Piece | Fabric | Cut Size | Qty | Notes |
|---|---|---|---|---|
| A | Dark | 4 7/8 x 4 7/8 inches | 2 | Cut once diagonally for 4 corner HST triangles |
| A | Background | 4 7/8 x 4 7/8 inches | 2 | Cut once diagonally for 4 corner HST triangles |
| B | Accent | 2 1/2 x 4 1/2 inches | 4 | Side unit rectangles |
| C | Dark | 2 7/8 x 2 7/8 inches | 4 | Cut once diagonally; small triangles for side units |
| C | Background | 2 7/8 x 2 7/8 inches | 4 | Cut once diagonally; small triangles for side units |
| D | Dark | 4 1/2 x 4 1/2 inches | 1 | Center square |
Pair each dark 4 7/8 inch triangle with a background triangle. Sew along the long edge with a 1/4 inch seam. Press toward the dark fabric and trim to 4 1/2 inches square. Make 4 HST corner units.
Tip: Mark the sewing line lightly with a pencil on the lighter fabric for precision.
For each side unit: sew a small dark triangle to one end of an accent rectangle (right sides together, sew on the diagonal). Press and trim. Sew a small background triangle to the opposite end, mirroring the angle. Press and trim. The completed side unit should measure 4 1/2 inches square. Make 4 side units, all oriented in the same rotational direction.
Tip: Pay close attention to the triangle orientations — all four side units must spin in the same direction for the weathervane effect.
Lay out in a 3x3 grid: HST corners in all four corner positions (dark triangles pointing toward center), side units in the top, bottom, left, and right positions (all spinning the same direction), and the dark center square in the middle.
Sew each row of 3 units together. Press seams in Rows 1 and 3 toward the corners, and in Row 2 toward the center square.
Join the three rows, nesting seams at intersections. Press the joining seams toward the center row. The block should measure 12 1/2 inches square.
See how this traditional pattern looks in different color combinations.
Straight set with sashing — 4x5 blocks with 2-inch sashing for a 58 x 72 inch throw
Alternating spinning directions (clockwise/counterclockwise) for adjacent blocks
On-point setting for a dynamic diagonal presentation