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Rule Morning Frost

Franconia - Morning Frost - New England, USA

Franconia, New Hampshire, 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 50% failing

Currently

Real-time conditions
Soil Temperature16.6°C
Dew Point14.3°C (moderate dew point)
Wind Speed1.2m/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 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
Wed, Jul 8
01:000%1.1m/s
02:000%1.2m/s
03:000%1.4m/s
04:000%0.57m/s
05:000%0.56m/s
06:000%0.91m/s
07:000%0.62m/s
08:000%1.3m/s
09:000%1.1m/s
10:000%1.2m/s
11:000%1.7m/s
12:000%1.1m/s
13:000%0.69m/s
14:000%0.73m/s
15:000%1.8m/s
16:000%0.92m/s
17:000%1.5m/s
18:000%1.5m/s
19:000%1.1m/s
20:000%1.3m/s
21:000%1.6m/s
22:000%1.4m/s
23:000%1.6m/s
Thu, Jul 9
24:000%1.8m/s
01:000%1.6m/s
02:000%1.7m/s
03:000%1.7m/s
04:000%1.4m/s
05:000%1.1m/s
06:000%1.2m/s
07:000%0.97m/s
08:000%1.1m/s
09:000%1.5m/s
10:000%2.1m/s
11:000%2.3m/s
12:000%2.3m/s
13:000%2.4m/s
14:000%2.9m/s
15:000%1.2m/s
16:000%1.2m/s
17:000%1.7m/s
18:000%3.2m/s
19:000%1.6m/s
20:000%1.3m/s
21:000%1.3m/s
22:000%0.79m/s
23:000%0.67m/s
Fri, Jul 10
24:000%0.75m/s
01:000%0.94m/s
02:000%0.05m/s
03:000%0.08m/s
04:000%0.29m/s
05:000%0.9m/s
06:000%0.5m/s
07:000%0.44m/s
08:000%0.45m/s
09:000%1.8m/s
10:000%1.9m/s
11:000%2.3m/s
12:000%1.8m/s
13:000%1.6m/s
14:000%1.9m/s
15:000%2m/s
16:000%2.1m/s
17:000%2.2m/s
18:000%2.2m/s
19:000%2.3m/s
20:000%2.4m/s
21:000%2.3m/s
22:000%2.3m/s
23:000%2.2m/s
Sat, Jul 11
24:000%1.7m/s
01:000%1.1m/s
02:000%0.58m/s
03:000%0.98m/s
04:000%1.4m/s
05:000%1.8m/s
06:000%2.1m/s
07:000%2.5m/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
Wed, Jul 8 Sunrise 05:12 Sunset 20:31
10:00
14°C 17°C 22°C - 0% 1.1kPa
11:00
14°C 17°C 24°C - 24% 1.4kPa
12:00
14°C 17°C 26°C - 56% 1.7kPa
13:00
14°C 17°C 27°C - 85% 2kPa
14:00
14°C 17°C 27°C - 100% 2kPa
15:00
16°C 18°C 24°C - 100% 1.2kPa
16:00
17°C 18°C 24°C - 100% 1kPa
17:00
15°C 18°C 25°C - 100% 1.5kPa
18:00
16°C 18°C 24°C - 94% 1.2kPa
19:00
17°C 18°C 22°C - 67% 0.69kPa
20:00
17°C 18°C 20°C - 16% 0.48kPa
21:00
15°C 18°C 19°C - 92% 0.41kPa
22:00
15°C 18°C 18°C - 100% 0.39kPa
23:00
14°C 18°C 18°C - 92% 0.4kPa
Thu, Jul 9 Sunrise 05:12 Sunset 20:31
24:00
14°C 18°C 18°C - 98% 0.42kPa
01:00
14°C 18°C 17°C - 100% 0.42kPa
02:00
14°C 18°C 17°C - 67% 0.37kPa
03:00
14°C 17°C 16°C - 100% 0.28kPa
04:00
14°C 17°C 16°C - 30% 0.24kPa
05:00
14°C 17°C 15°C - 0% 0.19kPa
06:00
14°C 17°C 16°C - 1% 0.24kPa
07:00
16°C 17°C 19°C - 5% 0.46kPa
08:00
16°C 17°C 22°C - 0% 0.77kPa
09:00
16°C 17°C 24°C - 0% 1.1kPa
10:00
16°C 17°C 25°C - 71% 1.4kPa
11:00
16°C 18°C 26°C - 15% 1.5kPa
12:00
16°C 18°C 27°C - 22% 1.8kPa
13:00
16°C 18°C 28°C - 97% 2kPa
14:00
15°C 18°C 28°C - 96% 2.1kPa
15:00
18°C 18°C 26°C - 93% 1.4kPa
16:00
17°C 19°C 27°C - 73% 1.6kPa
17:00
16°C 19°C 27°C - 63% 1.8kPa
18:00
18°C 19°C 24°C - 100% 0.86kPa
19:00
19°C 19°C 20°C - 100% 0.15kPa
20:00
18°C 19°C 19°C - 32% 0.09kPa
21:00
17°C 19°C 18°C - 100% 0.08kPa
22:00
17°C 19°C 18°C - 100% 0.09kPa
23:00
17°C 18°C 17°C - 100% 0.07kPa
Fri, Jul 10 Sunrise 05:13 Sunset 20:30
24:00
16°C 18°C 17°C - 100% 0.04kPa
01:00
17°C 18°C 17°C - 100% 0.04kPa
02:00
17°C 18°C 17°C - 100% 0.06kPa
03:00
17°C 18°C 17°C - 100% 0.05kPa
04:00
17°C 18°C 17°C - 98% 0.05kPa
05:00
17°C 18°C 17°C - 99% 0.04kPa
06:00
17°C 18°C 17°C - 100% 0.03kPa
07:00
17°C 18°C 17°C - 100% 0.03kPa
08:00
18°C 18°C 18°C - 99% 0.08kPa
09:00
18°C 18°C 19°C - 97% 0.2kPa
10:00
19°C 18°C 20°C - 100% 0.18kPa
11:00
19°C 18°C 20°C - 100% 0.16kPa
12:00
18°C 18°C 20°C - 100% 0.17kPa
13:00
18°C 18°C 21°C - 98% 0.45kPa
14:00
18°C 18°C 23°C - 100% 0.68kPa
15:00
16°C 18°C 20°C - 100% 0.51kPa
16:00
15°C 17°C 18°C - 100% 0.38kPa
17:00
13°C 17°C 16°C - 100% 0.27kPa
18:00
13°C 17°C 15°C - 67% 0.26kPa
19:00
12°C 17°C 15°C - 33% 0.25kPa
20:00
12°C 17°C 14°C - 0% 0.24kPa
21:00
11°C 17°C 14°C - 2% 0.31kPa
22:00
9.5°C 17°C 14°C - 3% 0.38kPa
23:00
8.4°C 16°C 13°C - 5% 0.44kPa
Sat, Jul 11 Sunrise 05:14 Sunset 20:30
24:00
9.2°C 16°C 16°C - 9% 0.6kPa
01:00
9.9°C 16°C 18°C - 14% 0.78kPa
02:00
11°C 16°C 20°C - 18% 1kPa
03:00
10°C 16°C 21°C - 18% 1.2kPa
04:00
9.4°C 16°C 22°C - 17% 1.5kPa
05:00
8.6°C 17°C 23°C - 17% 1.7kPa
06:00
8.2°C 17°C 24°C - 38% 1.8kPa
07:00
7.8°C 17°C 24°C - 59% 1.9kPa
08:00
7.4°C 17°C 25°C - 80% 2.1kPa
09:00
7°C 17°C 24°C - 87% 2kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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