Microseason 33 of 72 · June 11–15
Solstice approaches — longest light
A five-day window of the year, read through nine North American climate regions.
Same week, nine climates
A microseason names a five-day window of the solar year. What that window actually looks like on the ground depends on where you are. Below, the same calendar window read through each of nine North American climate regions.
- NENortheast Continental
Solstice approaches — longest light
Sunrise before 5:30 AM; sunset nearly 8:30 PM.
- SESoutheast Subtropical
Sun climbs to its northern throne
Days lengthen toward solstice; longest light lingers until after 8 PM, heat building steadily.
- PNWPacific Northwest
Solstice Light Crests
The sun barely dips below the horizon. Twilight lingers until nearly midnight; songbirds sing long into dusk, feeding young in the endless glow.
- CACalifornia Mediterranean
Summer solstice light stretched thin
The sun's arc peaks; evening light lingers until past 8:30pm across the coast and Bay Area.
- MWMountain West
Paintbrush crowns the ridges
Alpine wildflower wave accelerates; paintbrush and columbine peak in high meadows as daylight reaches its maximum.
- MPPlains Continental
Toward the solstice glow
Days lengthen toward the summer solstice; corn and soybeans surge upward, reaching knee-height across the prairie heartland.
- SWSouthwest Desert
The dry breath stills
Wind drops to nothing. The desert holds its breath. Afternoon dew points climb. Saguaro shadows grow softer as haze thickens on the horizon.
- TRTropical / Sub-Tropical
Easterly waves thread the Atlantic
Low-pressure systems track westward. Cloud streets align with the trades. Waves rise to chest height. Mangrove snails cluster on aerial roots.
- AKAlaska Subarctic
Berries begin to form on the tundra
Blueberry and low-bush cranberry flowers fade as tiny fruit sets on cushion plant mats across open subarctic slopes.
About the 72-microseason calendar
A microseason is a five-day window of the solar year — long enough to notice something change, short enough that the change is specific. The year holds seventy-two of them, six per month, ordered by what the natural world is doing rather than what the clock says. Almanac calendars like this are an old American habit, kept by farmers, gardeners, and birders for centuries; Weather Story collects them into a single reference.
Each microseason is read through nine North American climate regions. The phenological events that mark a five-day window vary with ecology — the strawberries that open in the Northeast might coincide with the first magnolias dropping in the Southeast and the salmonberry blossoms unfurling in the Pacific Northwest. Same week, nine ecologies, nine readings.