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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 97% failing
Time Window 88% failing

Currently

Real-time conditions
Soil Temperature9725.9°C
Dew Point-10.3°C (low dew point)
Wind Speed6.4m/s (moderate winds)
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 79 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
Fri, Mar 13
01:000%7.5m/s
02:000%7.2m/s
03:000%8m/s
04:000%7.9m/s
05:000%8m/s
06:000%7.5m/s
07:000%7.5m/s
08:000%6.4m/s
09:000%6.4m/s
10:000%5.7m/s
11:000%4.9m/s
12:000%4.5m/s
13:000%5m/s
14:000%5.5m/s
15:000%6.1m/s
16:000%6m/s
17:000%5.9m/s
18:000%6.1m/s
19:000%5.4m/s
20:000%7.8m/s
21:000%8.2m/s
22:000%7.7m/s
23:000%8.8m/s
Sat, Mar 14
24:000%8.8m/s
01:000%9.2m/s
02:000%8.8m/s
03:000%7.3m/s
04:000%7.4m/s
05:000%6.6m/s
06:000%6.1m/s
07:000%6.1m/s
08:000%5.2m/s
09:000%5.4m/s
10:000%6.5m/s
11:000%7.2m/s
12:000%6.9m/s
13:000%6.6m/s
14:000%7.7m/s
15:000%6.9m/s
16:000%6.6m/s
17:000%7.9m/s
18:000%9.8m/s
19:000%11m/s
20:000%11m/s
21:000%9.1m/s
22:000%8.2m/s
23:000%8m/s
Sun, Mar 15
24:000%7.9m/s
01:000%7.5m/s
02:000%7.2m/s
03:000%6.6m/s
04:000%6.3m/s
05:000%4.6m/s
06:000%3.3m/s
07:000%2m/s
08:000%1.5m/s
09:000%1.9m/s
10:000%1.2m/s
11:000%2.2m/s
12:000%3.3m/s
13:000%4.2m/s
14:000%4.6m/s
15:000%4.7m/s
16:000%4.8m/s
17:0058%4.9m/s
18:0058%4.8m/s
19:0050%4.7m/s
20:0050%4.6m/s
21:0050%4.6m/s
22:0047%4.6m/s
23:0047%4.6m/s
Mon, Mar 16
24:0037%4.6m/s
01:0037%4.7m/s
02:0037%4.7m/s
03:0033%4.5m/s
04:0033%4.4m/s
05:0018%4.2m/s
06:0018%4.4m/s
07:0018%4.5m/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
Fri, Mar 13 Sunrise 06:57 Sunset 18:45
09:00
-10°C 9726°C -1°C - 0% 0.29kPa
10:00
-10°C 9726°C 0.23°C - 0% 0.34kPa
11:00
-9.9°C 9726°C 1.5°C - 92% 0.39kPa
12:00
-9.6°C 9726°C 2.4°C - 100% 0.43kPa
13:00
-8.7°C 9726°C 2.9°C - 100% 0.44kPa
14:00
-8.5°C 9726°C 3.2°C - 100% 0.45kPa
15:00
-7.3°C 9726°C 3.2°C - 100% 0.41kPa
16:00
-6.2°C 9726°C 3.3°C - 100% 0.39kPa
17:00
-6.3°C 9726°C 3.1°C - 100% 0.38kPa
18:00
-6.1°C 9726°C 2.9°C - 100% 0.36kPa
19:00
-5.6°C 9726°C 2.5°C - 100% 0.33kPa
20:00
-3.7°C 9726°C 2.8°C - 100% 0.28kPa
21:00
-4.1°C 9726°C 1.6°C - 100% 0.24kPa
22:00
-1.3°C 9726°C 0.38°C - 100% 0.07kPa
23:00
0.4°C 9726°C 0.73°C - 100% 0.01kPa
Sat, Mar 14 Sunrise 06:55 Sunset 18:46
24:00
0.7°C 9726°C 1.3°C - 100% 0.03kPa
01:00
0.8°C 9726°C 1.8°C - 100% 0.05kPa
02:00
1.9°C 9726°C 2.2°C - 100% 0.01kPa
03:00
2.9°C 9726°C 3.6°C - 100% 0.03kPa
04:00
3.1°C 9726°C 4.2°C - 100% 0.06kPa
05:00
2.4°C 9726°C 3.5°C - 96% 0.05kPa
06:00
1.3°C 9726°C 2°C - 100% 0.03kPa
07:00
0.1°C 9726°C 1.5°C - 69% 0.07kPa
08:00
-0.4°C 9726°C 1.1°C - 59% 0.07kPa
09:00
0.3°C 9726°C 2.1°C - 100% 0.09kPa
10:00
1°C 9726°C 3.6°C - 100% 0.13kPa
11:00
0.4°C 9726°C 4.4°C - 82% 0.2kPa
12:00
0.1°C 9726°C 5°C - 87% 0.26kPa
13:00
-0.5°C 9726°C 5.7°C - 97% 0.32kPa
14:00
-0.3°C 9726°C 5.7°C - 100% 0.31kPa
15:00
0.1°C 9726°C 6.1°C - 61% 0.33kPa
16:00
0.7°C 9726°C 6.5°C - 99% 0.32kPa
17:00
1.1°C 9726°C 5.6°C - 100% 0.25kPa
18:00
0.2°C 9726°C 4.1°C - 69% 0.2kPa
19:00
-3.3°C 9726°C 2°C - 22% 0.23kPa
20:00
-4.4°C 9726°C 1.1°C - 0% 0.22kPa
21:00
-4.4°C 9726°C 0.77°C - 2% 0.21kPa
22:00
-4.3°C 9726°C 0.65°C - 4% 0.2kPa
23:00
-4.4°C 9726°C 0.36°C - 5% 0.19kPa
Sun, Mar 15 Sunrise 06:54 Sunset 18:48
24:00
-4.9°C 9726°C 0.04°C - 3% 0.19kPa
01:00
-5.3°C 9726°C -0.27°C - 1% 0.19kPa
02:00
-5.5°C 9726°C -0.65°C - 6% 0.18kPa
03:00
-5.7°C 9726°C -1.1°C - 63% 0.16kPa
04:00
-6.5°C 9726°C -1.4°C - 27% 0.17kPa
05:00
-7.2°C 9726°C -2°C - 51% 0.17kPa
06:00
-7.5°C 9726°C -2.8°C - 84% 0.15kPa
07:00
-7.8°C 9726°C -2.9°C - 16% 0.16kPa
08:00
-8°C 9726°C -2°C - 15% 0.19kPa
09:00
-8.3°C 9726°C -0.79°C - 68% 0.25kPa
10:00
-8.7°C 9726°C 0.19°C - 82% 0.3kPa
11:00
-8.3°C 9726°C 0.55°C - 42% 0.31kPa
12:00
-7.8°C 9726°C 0.81°C - 58% 0.31kPa
13:00
-7.4°C 9726°C 1°C - 100% 0.31kPa
14:00
-6.9°C 9726°C 1.4°C - 100% 0.31kPa
15:00
-5°C 6484°C 1.6°C - 100% 0.27kPa
16:00
-3.2°C 3242°C 1.9°C - 100% 0.22kPa
17:00
-1.6°C 0.56°C 2.2°C - 100% 0.17kPa
18:00
-1.1°C 0.62°C 2.2°C - 100% 0.15kPa
19:00
-0.7°C 0.69°C 2.2°C - 100% 0.14kPa
20:00
-0.3°C 0.75°C 2.2°C - 100% 0.12kPa
21:00
0.3°C 0.83°C 2.5°C - 100% 0.11kPa
22:00
0.8°C 0.91°C 2.8°C - 100% 0.1kPa
23:00
1.4°C 0.99°C 3.1°C - 100% 0.09kPa
Mon, Mar 16 Sunrise 06:52 Sunset 18:49
24:00
1.9°C 1.1°C 3.5°C - 100% 0.08kPa
01:00
2.5°C 1.3°C 3.8°C - 100% 0.07kPa
02:00
3°C 1.5°C 4.2°C - 100% 0.07kPa
03:00
3.7°C 1.7°C 4.6°C - 100% 0.05kPa
04:00
4.5°C 1.9°C 5.1°C - 100% 0.04kPa
05:00
5.2°C 2.1°C 5.6°C - 100% 0.02kPa
06:00
5.7°C 2.4°C 6°C - 100% 0.02kPa
07:00
6.2°C 2.7°C 6.5°C - 100% 0.02kPa
08:00
6.8°C 3.1°C 7°C - 100% 0.02kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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