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Rule Morning Frost

Kennebunkport - Morning Frost - New England, USA

Kennebunkport, Maine, United States

Frost crystals on calm, cold mornings near sunrise

No opportunities right now
Here’s what usually blocks matches

No Morning Frost opportunities in the next 14 days

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Rule requirements (key thresholds)
Time Window · Sunrise -45m to +90m Frost Probability · ≥ 60.0% Wind Speed · ≤ 1.5m/s

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Frost Probability 100% failing
Wind Speed 96% failing
Time Window 88% failing

Currently

Real-time conditions
Soil Temperature9725.9°C
Dew Point13.7°C (moderate dew point)
Wind Speed0.5m/s (calm conditions)
Cloud Cover0%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/New_York

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

What this forecast looks for

Plain-language explanation from the rule

This forecast predicts the first frost events that transform New England's fall foliage into crystalline masterpieces. We track overnight temperatures, dewpoint, and wind conditions to identify when frost will coat leaves, grasses, and stone walls with sparkling ice crystals.

The first hard frost of autumn is a cherished event in New England—it triggers the final phase of fall color and creates magical dawn conditions where ice crystals catch golden light. The region's iconic stone walls, covered bridges, and sugar maples take on new dimension when dusted with frost.

What makes New England frost photography exceptional:

  • Foliage enhancement - Frost crystals on red and orange leaves create otherworldly textures and highlights
  • Stone wall character - New England's ubiquitous dry-stacked stone walls gain definition and drama when frost-covered
  • Sugar maple groves - Vermont and New Hampshire maple stands combine brilliant color with frost textures
  • Historic elements - Colonial-era buildings, covered bridges, and farmsteads gain timeless quality under frost

Best conditions occur on clear, calm nights in October when temperatures drop to 28-32°F. Frost melts quickly after sunrise, so arrive before dawn for frost plus golden hour light. Protected valleys and hollows accumulate frost more heavily than exposed hilltops.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 80 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/New_York
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Wed, Jul 8
24:000%2.8m/s
01:000%3m/s
02:000%2.8m/s
03:000%3.6m/s
04:000%3.4m/s
05:000%3.1m/s
06:000%2.3m/s
07:000%1.8m/s
08:000%1.6m/s
09:000%0.79m/s
10:000%0.53m/s
11:000%3.4m/s
12:000%3.6m/s
13:000%4.4m/s
14:000%4.4m/s
15:000%4.3m/s
16:000%4.7m/s
17:000%5m/s
18:000%4.8m/s
19:000%4.1m/s
20:000%3.5m/s
21:000%4.2m/s
22:000%5.4m/s
23:000%4.1m/s
Thu, Jul 9
24:000%3.4m/s
01:000%3.1m/s
02:000%2.7m/s
03:000%2.5m/s
04:000%2.3m/s
05:000%2.4m/s
06:000%2.7m/s
07:000%2.7m/s
08:000%3.1m/s
09:000%2.9m/s
10:000%3.4m/s
11:000%3.7m/s
12:000%4m/s
13:000%4.5m/s
14:000%5.7m/s
15:000%6.4m/s
16:000%6.2m/s
17:000%5.1m/s
18:000%2.6m/s
19:000%3.5m/s
20:000%4.2m/s
21:000%6.1m/s
22:000%7.1m/s
23:000%5.4m/s
Fri, Jul 10
24:000%4.2m/s
01:000%2.9m/s
02:000%2.3m/s
03:000%1.8m/s
04:000%2m/s
05:000%2.2m/s
06:000%2.3m/s
07:000%1.9m/s
08:000%1.8m/s
09:000%2.1m/s
10:000%1.6m/s
11:000%2m/s
12:000%2.9m/s
13:000%2.8m/s
14:000%2.9m/s
15:000%2.4m/s
16:000%2m/s
17:000%1.5m/s
18:000%1.8m/s
19:000%2.1m/s
20:000%2.4m/s
21:000%2.7m/s
22:000%3m/s
23:000%3.3m/s
Sat, Jul 11
24:000%3.5m/s
01:000%3.7m/s
02:000%3.9m/s
03:000%3.6m/s
04:000%3.3m/s
05:000%3.1m/s
06:000%3.1m/s
07:000%3.2m/s
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Frost Probability mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
America/New_York
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Wed, Jul 8 Sunrise 05:10 Sunset 20:23
10:00
14°C 9726°C 21°C - 0% 0.86kPa
11:00
14°C 9726°C 21°C - 0% 0.82kPa
12:00
15°C 9726°C 21°C - 0% 0.75kPa
13:00
15°C 9726°C 21°C - 2% 0.73kPa
14:00
15°C 9726°C 21°C - 33% 0.68kPa
15:00
16°C 9726°C 21°C - 82% 0.64kPa
16:00
16°C 9726°C 21°C - 100% 0.62kPa
17:00
16°C 9726°C 21°C - 100% 0.57kPa
18:00
16°C 9726°C 20°C - 84% 0.52kPa
19:00
17°C 9726°C 20°C - 100% 0.44kPa
20:00
17°C 9726°C 19°C - 10% 0.36kPa
21:00
16°C 9726°C 19°C - 74% 0.33kPa
22:00
16°C 9726°C 19°C - 100% 0.41kPa
23:00
16°C 9726°C 20°C - 63% 0.44kPa
Thu, Jul 9 Sunrise 05:10 Sunset 20:23
24:00
17°C 9726°C 19°C - 41% 0.27kPa
01:00
17°C 9726°C 18°C - 32% 0.23kPa
02:00
16°C 9726°C 18°C - 7% 0.22kPa
03:00
16°C 9726°C 18°C - 31% 0.23kPa
04:00
16°C 9726°C 18°C - 97% 0.24kPa
05:00
16°C 9726°C 18°C - 5% 0.28kPa
06:00
16°C 9726°C 19°C - 0% 0.34kPa
07:00
16°C 9726°C 20°C - 0% 0.48kPa
08:00
17°C 9726°C 22°C - 0% 0.75kPa
09:00
17°C 9726°C 24°C - 4% 0.96kPa
10:00
18°C 9726°C 25°C - 5% 1.1kPa
11:00
18°C 9726°C 25°C - 53% 1.2kPa
12:00
18°C 9726°C 26°C - 85% 1.3kPa
13:00
18°C 9726°C 26°C - 52% 1.3kPa
14:00
18°C 9726°C 26°C - 22% 1.3kPa
15:00
19°C 9726°C 26°C - 61% 1.1kPa
16:00
20°C 9726°C 25°C - 100% 0.86kPa
17:00
20°C 9726°C 25°C - 98% 0.87kPa
18:00
19°C 9726°C 24°C - 100% 0.69kPa
19:00
20°C 9726°C 23°C - 100% 0.43kPa
20:00
20°C 9726°C 23°C - 72% 0.4kPa
21:00
20°C 9726°C 23°C - 100% 0.48kPa
22:00
20°C 9726°C 22°C - 100% 0.34kPa
23:00
20°C 9726°C 21°C - 92% 0.15kPa
Fri, Jul 10 Sunrise 05:11 Sunset 20:22
24:00
20°C 9726°C 21°C - 90% 0.13kPa
01:00
20°C 9726°C 21°C - 100% 0.09kPa
02:00
20°C 9726°C 20°C - 100% 0.08kPa
03:00
19°C 9726°C 20°C - 100% 0.06kPa
04:00
18°C 9726°C 19°C - 100% 0.05kPa
05:00
18°C 9726°C 19°C - 100% 0.06kPa
06:00
18°C 9726°C 19°C - 100% 0.07kPa
07:00
19°C 9726°C 19°C - 100% 0.08kPa
08:00
19°C 9726°C 20°C - 94% 0.1kPa
09:00
19°C 9726°C 21°C - 75% 0.25kPa
10:00
19°C 9726°C 22°C - 100% 0.46kPa
11:00
19°C 9726°C 22°C - 100% 0.53kPa
12:00
20°C 9726°C 21°C - 100% 0.26kPa
13:00
19°C 9726°C 22°C - 100% 0.35kPa
14:00
19°C 9726°C 22°C - 100% 0.41kPa
15:00
19°C 6491°C 21°C - 100% 0.29kPa
16:00
19°C 3256°C 20°C - 100% 0.17kPa
17:00
19°C 20°C 19°C - 100% 0.07kPa
18:00
18°C 20°C 19°C - 67% 0.07kPa
19:00
18°C 20°C 18°C - 34% 0.07kPa
20:00
17°C 20°C 18°C - 0% 0.07kPa
21:00
17°C 20°C 17°C - 19% 0.09kPa
22:00
16°C 20°C 17°C - 37% 0.1kPa
23:00
15°C 19°C 16°C - 55% 0.11kPa
Sat, Jul 11 Sunrise 05:12 Sunset 20:22
24:00
15°C 19°C 17°C - 39% 0.32kPa
01:00
14°C 19°C 19°C - 23% 0.56kPa
02:00
13°C 19°C 20°C - 7% 0.84kPa
03:00
13°C 19°C 22°C - 8% 1.1kPa
04:00
12°C 19°C 23°C - 8% 1.5kPa
05:00
11°C 19°C 25°C - 9% 1.9kPa
06:00
11°C 20°C 25°C - 30% 1.9kPa
07:00
11°C 20°C 26°C - 52% 2kPa
08:00
12°C 20°C 26°C - 73% 2.1kPa
09:00
12°C 20°C 25°C - 82% 1.8kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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