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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
Time Window 88% failing
Wind Speed 88% failing

Currently

Real-time conditions
Soil Temperature9725.9°C
Dew Point5.5°C (moderate dew point)
Wind Speed3.2m/s (calm conditions)
Cloud Cover100%

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 95 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
Sat, May 23
09:000%5m/s
10:000%5.4m/s
11:000%5.6m/s
12:000%5.1m/s
13:000%4.9m/s
14:000%4.4m/s
15:000%3.7m/s
16:000%3.7m/s
17:000%3.4m/s
18:000%2.8m/s
19:000%2.3m/s
20:000%2m/s
21:000%2.5m/s
22:000%2.4m/s
23:000%2.3m/s
Sun, May 24
24:000%2.4m/s
01:000%2.2m/s
02:000%2.6m/s
03:000%2.1m/s
04:000%2.3m/s
05:000%2.3m/s
06:000%3.3m/s
07:000%3.3m/s
08:000%3.5m/s
09:000%3.2m/s
10:000%3m/s
11:000%3m/s
12:000%4.4m/s
13:000%4.4m/s
14:000%3.1m/s
15:000%2.7m/s
16:000%3.7m/s
17:000%3.9m/s
18:000%4.2m/s
19:000%4.8m/s
20:000%4.6m/s
21:000%5.4m/s
22:000%5.6m/s
23:000%5.5m/s
Mon, May 25
24:000%6.6m/s
01:000%6.8m/s
02:000%7.1m/s
03:000%5.6m/s
04:000%5.4m/s
05:000%4.8m/s
06:000%4.7m/s
07:000%3.6m/s
08:000%2.1m/s
09:000%1.1m/s
10:000%2.7m/s
11:000%2.9m/s
12:000%3.1m/s
13:000%2.5m/s
14:000%2.1m/s
15:000%0.23m/s
16:000%2.4m/s
17:000%4.1m/s
18:000%3.4m/s
19:000%2.6m/s
20:000%2.7m/s
21:000%2.7m/s
22:000%1.5m/s
23:000%1.1m/s
Tue, May 26
24:000%0.58m/s
01:000%0.71m/s
02:000%0.16m/s
03:000%0.16m/s
04:000%0.26m/s
05:000%1.2m/s
06:000%2.3m/s
07:000%2.1m/s
08:000%2.8m/s
09:000%2.5m/s
10:000%3.1m/s
11:000%4.1m/s
12:000%5.2m/s
13:000%5.8m/s
14:000%5.6m/s
15:000%4.8m/s
16:000%3.9m/s
17:000%3m/s
18:000%3.2m/s
19:000%3.4m/s
20:000%3.5m/s
21:000%3.7m/s
22:000%4m/s
23:000%4.2m/s
Wed, May 27
24:000%3.9m/s
01:000%3.7m/s
02:000%3.4m/s
03:000%3.5m/s
04:000%3.6m/s
05:000%3.6m/s
06:000%3m/s
07:000%2.4m/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
Sun, May 24 Sunrise 05:09 Sunset 20:08
09:00
5.5°C 9726°C 11°C - 100% 0.43kPa
10:00
5.6°C 9726°C 11°C - 100% 0.39kPa
11:00
5.6°C 9726°C 11°C - 100% 0.4kPa
12:00
4.8°C 9726°C 11°C - 100% 0.45kPa
13:00
4.4°C 9726°C 11°C - 100% 0.44kPa
14:00
5.2°C 9726°C 9.8°C - 100% 0.32kPa
15:00
5.7°C 9726°C 9.1°C - 100% 0.24kPa
16:00
5.6°C 9726°C 8.9°C - 100% 0.23kPa
17:00
5.8°C 9726°C 8.6°C - 100% 0.2kPa
18:00
6.1°C 9726°C 8.4°C - 100% 0.16kPa
19:00
6.8°C 9726°C 8.6°C - 100% 0.13kPa
20:00
7.5°C 9726°C 8.8°C - 100% 0.1kPa
21:00
8.5°C 9726°C 9.4°C - 100% 0.07kPa
22:00
9°C 9726°C 9.9°C - 100% 0.07kPa
23:00
9.5°C 9726°C 10°C - 100% 0.06kPa
Mon, May 25 Sunrise 05:08 Sunset 20:09
24:00
9.6°C 9726°C 10°C - 100% 0.06kPa
01:00
9.8°C 9726°C 11°C - 100% 0.06kPa
02:00
9.9°C 9726°C 11°C - 100% 0.05kPa
03:00
10°C 9726°C 11°C - 100% 0.04kPa
04:00
10°C 9726°C 11°C - 100% 0.03kPa
05:00
11°C 9726°C 11°C - 100% 0.02kPa
06:00
11°C 9726°C 11°C - 100% 0.02kPa
07:00
11°C 9726°C 11°C - 100% 0.01kPa
08:00
11°C 9726°C 11°C - 100% 0.01kPa
09:00
11°C 9726°C 11°C - 100% 0.01kPa
10:00
11°C 9726°C 11°C - 100% 0.02kPa
11:00
11°C 9726°C 11°C - 100% 0.02kPa
12:00
11°C 9726°C 11°C - 100% 0.05kPa
13:00
12°C 9726°C 13°C - 100% 0.14kPa
14:00
12°C 9726°C 15°C - 100% 0.26kPa
15:00
13°C 9726°C 16°C - 100% 0.38kPa
16:00
13°C 9726°C 16°C - 100% 0.36kPa
17:00
12°C 9726°C 15°C - 100% 0.23kPa
18:00
12°C 9726°C 13°C - 98% 0.13kPa
19:00
11°C 9726°C 12°C - 98% 0.1kPa
20:00
11°C 9726°C 12°C - 100% 0.1kPa
21:00
11°C 9726°C 12°C - 100% 0.09kPa
22:00
11°C 9726°C 12°C - 100% 0.09kPa
23:00
11°C 9726°C 12°C - 100% 0.08kPa
Tue, May 26 Sunrise 05:08 Sunset 20:10
24:00
11°C 9726°C 12°C - 82% 0.08kPa
01:00
11°C 9726°C 12°C - 100% 0.08kPa
02:00
11°C 9726°C 12°C - 100% 0.08kPa
03:00
11°C 9726°C 12°C - 100% 0.08kPa
04:00
11°C 9726°C 12°C - 100% 0.07kPa
05:00
11°C 9726°C 12°C - 100% 0.08kPa
06:00
11°C 9726°C 12°C - 100% 0.08kPa
07:00
12°C 9726°C 13°C - 100% 0.11kPa
08:00
12°C 9726°C 14°C - 100% 0.16kPa
09:00
12°C 9726°C 15°C - 100% 0.23kPa
10:00
12°C 9726°C 15°C - 100% 0.29kPa
11:00
12°C 9726°C 15°C - 100% 0.31kPa
12:00
12°C 9726°C 15°C - 100% 0.29kPa
13:00
12°C 9726°C 15°C - 100% 0.29kPa
14:00
12°C 9726°C 15°C - 50% 0.28kPa
15:00
12°C 6489°C 15°C - 34% 0.27kPa
16:00
13°C 3252°C 15°C - 17% 0.25kPa
17:00
13°C 15°C 15°C - 0% 0.23kPa
18:00
13°C 15°C 15°C - 0% 0.3kPa
19:00
13°C 15°C 16°C - 0% 0.37kPa
20:00
13°C 15°C 17°C - 0% 0.44kPa
21:00
12°C 15°C 17°C - 0% 0.47kPa
22:00
12°C 15°C 17°C - 0% 0.5kPa
23:00
12°C 15°C 17°C - 0% 0.53kPa
Wed, May 27 Sunrise 05:07 Sunset 20:11
24:00
13°C 15°C 18°C - 2% 0.63kPa
01:00
14°C 15°C 20°C - 3% 0.73kPa
02:00
14°C 15°C 21°C - 5% 0.86kPa
03:00
14°C 16°C 22°C - 31% 1.1kPa
04:00
13°C 16°C 23°C - 57% 1.4kPa
05:00
13°C 16°C 25°C - 83% 1.6kPa
06:00
13°C 17°C 25°C - 86% 1.7kPa
07:00
13°C 17°C 25°C - 90% 1.7kPa
08:00
13°C 17°C 25°C - 93% 1.7kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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