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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 99% failing
Time Window 88% failing

Currently

Real-time conditions
Soil Temperature9725.9°C
Dew Point-4.0°C (low dew point)
Wind Speed3.7m/s (calm conditions)
Cloud Cover2%

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
Wed, Apr 8
03:000%3.5m/s
04:000%3.1m/s
05:000%2.9m/s
06:000%2.8m/s
07:000%3m/s
08:000%3.2m/s
09:000%3.8m/s
10:000%2.2m/s
11:000%1.3m/s
12:000%3.4m/s
13:000%4.7m/s
14:000%5.3m/s
15:000%5m/s
16:000%4.9m/s
17:000%4.5m/s
18:000%4.2m/s
19:000%4.5m/s
20:000%5.4m/s
21:000%5m/s
22:000%5.2m/s
23:000%5.3m/s
Thu, Apr 9
24:000%5.3m/s
01:000%5.1m/s
02:000%4.7m/s
03:000%4.3m/s
04:000%3.7m/s
05:000%3.8m/s
06:000%4.3m/s
07:000%4.6m/s
08:000%4.6m/s
09:000%4.8m/s
10:000%5.4m/s
11:000%6.3m/s
12:000%7.2m/s
13:000%7.5m/s
14:000%7.5m/s
15:000%7.4m/s
16:000%7.5m/s
17:000%7.8m/s
18:000%8.5m/s
19:000%10m/s
20:000%9.4m/s
21:000%8.4m/s
22:000%8.3m/s
23:000%7.9m/s
Fri, Apr 10
24:000%7.2m/s
01:000%7m/s
02:000%6.7m/s
03:000%6.6m/s
04:000%6.6m/s
05:000%6m/s
06:000%5.6m/s
07:000%5.4m/s
08:000%5.6m/s
09:000%5.9m/s
10:000%5.1m/s
11:000%5.1m/s
12:000%5.4m/s
13:000%5.4m/s
14:000%6m/s
15:000%6.8m/s
16:000%6.8m/s
17:000%6.6m/s
18:000%6.5m/s
19:000%6.9m/s
20:000%7.2m/s
21:000%6.7m/s
22:000%6.2m/s
23:000%6.1m/s
Sat, Apr 11
24:000%6m/s
01:000%6m/s
02:000%5.8m/s
03:000%4.8m/s
04:000%6.2m/s
05:000%3.5m/s
06:000%3.9m/s
07:000%5.9m/s
08:000%6.4m/s
09:000%5.9m/s
10:000%5.4m/s
11:000%4.9m/s
12:000%4.1m/s
13:000%3.2m/s
14:000%2.4m/s
15:005%2.3m/s
16:005%2.3m/s
17:004.7%2.2m/s
18:0048%2.3m/s
19:0048%2.3m/s
20:0043%2.3m/s
21:0043%2.2m/s
22:0045%2m/s
23:0045%1.9m/s
Sun, Apr 12
24:0044%1.6m/s
01:0042%1.3m/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
Thu, Apr 9 Sunrise 06:09 Sunset 19:17
04:00
-4°C 9726°C 0.4°C - 2% 0.17kPa
05:00
-4°C 9726°C 0.4°C - 2% 0.18kPa
06:00
-3.7°C 9726°C 0.62°C - 2% 0.17kPa
07:00
-3.2°C 9726°C 1.3°C - 1% 0.19kPa
08:00
-2.6°C 9726°C 2.6°C - 0% 0.23kPa
09:00
-2.1°C 9726°C 3.5°C - 2% 0.26kPa
10:00
-1.8°C 9726°C 4.2°C - 5% 0.29kPa
11:00
-1.9°C 9726°C 4.6°C - 5% 0.32kPa
12:00
-2.6°C 9726°C 4.6°C - 5% 0.34kPa
13:00
-2.4°C 9726°C 4.6°C - 5% 0.34kPa
14:00
-2.3°C 9726°C 4.7°C - 5% 0.34kPa
15:00
-2.1°C 9726°C 4.9°C - 5% 0.34kPa
16:00
-1.3°C 9726°C 4.9°C - 5% 0.31kPa
17:00
-0.4°C 9726°C 4.8°C - 5% 0.26kPa
18:00
0°C 9726°C 4.7°C - 5% 0.24kPa
19:00
0.1°C 9726°C 4.8°C - 5% 0.24kPa
20:00
0.4°C 9726°C 4.9°C - 5% 0.24kPa
21:00
0.1°C 9726°C 5.1°C - 5% 0.26kPa
22:00
-0.5°C 9726°C 4.5°C - 5% 0.25kPa
23:00
0.1°C 9726°C 3.8°C - 44% 0.19kPa
Fri, Apr 10 Sunrise 06:08 Sunset 19:18
24:00
0.3°C 9726°C 3.4°C - 81% 0.15kPa
01:00
0.2°C 9726°C 3.2°C - 99% 0.14kPa
02:00
0.2°C 9726°C 3.1°C - 5% 0.14kPa
03:00
0.2°C 9726°C 2.9°C - 5% 0.13kPa
04:00
0.6°C 9726°C 3°C - 36% 0.12kPa
05:00
0.6°C 9726°C 2.9°C - 5% 0.11kPa
06:00
0.8°C 9726°C 2.8°C - 65% 0.1kPa
07:00
1.1°C 9726°C 3.1°C - 6% 0.1kPa
08:00
1.6°C 9726°C 4.4°C - 7% 0.15kPa
09:00
2.4°C 9726°C 6°C - 11% 0.21kPa
10:00
3.3°C 9726°C 7.6°C - 9% 0.27kPa
11:00
4.1°C 9726°C 8.9°C - 16% 0.32kPa
12:00
4.8°C 9726°C 9.6°C - 68% 0.33kPa
13:00
5.2°C 9726°C 10°C - 5% 0.34kPa
14:00
5.4°C 9726°C 10°C - 5% 0.35kPa
15:00
5.5°C 9726°C 10°C - 79% 0.34kPa
16:00
5.6°C 9726°C 10°C - 28% 0.32kPa
17:00
5.9°C 9726°C 10°C - 100% 0.3kPa
18:00
6.3°C 9726°C 9.8°C - 100% 0.26kPa
19:00
6.3°C 9726°C 10°C - 100% 0.28kPa
20:00
6°C 9726°C 11°C - 100% 0.36kPa
21:00
5.7°C 9726°C 10°C - 100% 0.35kPa
22:00
5.5°C 9726°C 10°C - 100% 0.33kPa
23:00
5.3°C 9726°C 9.6°C - 100% 0.31kPa
Sat, Apr 11 Sunrise 06:06 Sunset 19:20
24:00
5.4°C 9726°C 9.7°C - 100% 0.3kPa
01:00
5.5°C 9726°C 9.4°C - 100% 0.28kPa
02:00
5.8°C 9726°C 9.8°C - 100% 0.28kPa
03:00
7.4°C 9726°C 10°C - 100% 0.2kPa
04:00
7.3°C 9726°C 9.9°C - 100% 0.2kPa
05:00
6.4°C 9726°C 7.9°C - 99% 0.1kPa
06:00
4.8°C 9726°C 7.4°C - 26% 0.17kPa
07:00
2.4°C 9726°C 5.8°C - 31% 0.2kPa
08:00
1.6°C 9726°C 6.2°C - 30% 0.26kPa
09:00
0.4°C 6487°C 7.5°C - 34% 0.41kPa
10:00
-1.5°C 3248°C 8.8°C - 38% 0.58kPa
11:00
-4.1°C 9.2°C 10°C - 41% 0.78kPa
12:00
-3.5°C 8.8°C 8.3°C - 28% 0.62kPa
13:00
-3.2°C 8.5°C 6.4°C - 15% 0.48kPa
14:00
-3.2°C 8.1°C 4.6°C - 2% 0.37kPa
15:00
-3.1°C 7.5°C 3.9°C - 2% 0.32kPa
16:00
-3°C 6.9°C 3.1°C - 2% 0.27kPa
17:00
-3°C 6.3°C 2.4°C - 3% 0.23kPa
18:00
-3°C 5.8°C 2.1°C - 2% 0.22kPa
19:00
-3°C 5.3°C 1.9°C - 1% 0.21kPa
20:00
-3°C 4.7°C 1.7°C - 0% 0.2kPa
21:00
-3.1°C 4.4°C 1.3°C - 2% 0.19kPa
22:00
-3.2°C 4°C 0.93°C - 3% 0.17kPa
23:00
-3.3°C 3.6°C 0.53°C - 5% 0.16kPa
Sun, Apr 12 Sunrise 06:04 Sunset 19:21
24:00
-3.1°C 3.5°C 1.9°C - 37% 0.21kPa
01:00
-2.9°C 3.4°C 3.2°C - 68% 0.27kPa
02:00
-2.8°C 3.3°C 4.5°C - 100% 0.35kPa
03:00
-2.7°C 3.7°C 6.1°C - 100% 0.44kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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