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Rule Morning Frost

Morning Frost Forecast for Cape Cod, New England, USA

Cape Cod, Massachusetts, United States

Cape Cod's dunes, tidal flats, weathered lighthouses, and fishing harbors offer spare coastal compositions shaped by broad skies and Atlantic surf.

Currently

Real-time conditions
Soil Temperature9725.9°C
Dew Point19.1°C (high dew point)
Wind Speed4.2m/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 14 days

See which requirements block the most forecast hours below.

Most common blockers (86-hour forecast)

  • Frost Probability100% of hours
  • Wind Speed93% of hours
  • Time Window88% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Morning Frost conditions across New England, USA. The requirements and hourly values below show how those signals apply at Cape Cod.

Explore Morning Frost conditions across New England, USA →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Cape Cod during the last 365 days.

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
1
recorded matching window · 58% average confidence

Only 1 completed match is recorded in the last 365 days—insufficient history to identify a reliable typical start time or month.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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86-hour requirements breakdown

When available, the detailed table below covers only the stated 86-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
0matching hours in the next 86 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, Aug 22
24:000%7.1m/s
01:000%7.2m/s
02:000%7.3m/s
03:000%6.7m/s
04:000%6.8m/s
05:000%7.1m/s
06:000%7.1m/s
07:000%7m/s
08:000%6.7m/s
09:000%6.5m/s
10:000%6m/s
11:000%5.5m/s
12:000%4.3m/s
13:000%3.9m/s
14:000%3.7m/s
15:000%3.5m/s
16:000%4.2m/s
17:000%3.8m/s
18:000%3.6m/s
19:000%3.1m/s
20:000%2.9m/s
21:000%2.3m/s
22:000%2.2m/s
23:000%2.3m/s
Sun, Aug 23
24:000%1.5m/s
01:000%1.8m/s
02:000%0.74m/s
03:000%0.56m/s
04:000%1.4m/s
05:000%0.7m/s
06:000%1.8m/s
07:000%2.2m/s
08:000%2.5m/s
09:000%3.1m/s
10:000%3.4m/s
11:000%4.8m/s
12:000%4.6m/s
13:000%4.8m/s
14:000%5.3m/s
15:000%4.8m/s
16:000%5.1m/s
17:000%4.8m/s
18:000%4.3m/s
19:000%4m/s
20:000%3.7m/s
21:000%3.8m/s
22:000%4.1m/s
23:000%4.6m/s
Mon, Aug 24
24:000%4.4m/s
01:000%3.3m/s
02:000%3.2m/s
03:000%3.3m/s
04:000%3.4m/s
05:000%3.6m/s
06:000%4m/s
07:000%3.7m/s
08:000%4.3m/s
09:000%6.1m/s
10:000%7.4m/s
11:000%7.7m/s
12:000%8m/s
13:000%8.1m/s
14:000%8.2m/s
15:000%8m/s
16:000%7.7m/s
17:000%6.6m/s
18:000%6m/s
19:000%5.8m/s
20:000%5.5m/s
21:000%6m/s
22:000%6.5m/s
23:000%6.9m/s
Tue, Aug 25
24:000%7.4m/s
01:000%7.9m/s
02:000%8.5m/s
03:000%8.8m/s
04:000%9.1m/s
05:000%9.5m/s
06:000%9.6m/s
07:000%9.7m/s
08:000%9.9m/s
09:000%8.7m/s
10:000%7.5m/s
11:000%6.4m/s
12:000%7m/s
13:000%7.6m/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
Sat, Aug 22 Sunrise 05:56 Sunset 19:29
16:00
19°C 9726°C 20°C - 100% 0.19kPa
17:00
19°C 9726°C 20°C - 100% 0.17kPa
18:00
19°C 9726°C 20°C - 100% 0.18kPa
19:00
19°C 9726°C 20°C - 100% 0.17kPa
20:00
19°C 9726°C 20°C - 100% 0.19kPa
21:00
18°C 9726°C 20°C - 100% 0.21kPa
22:00
18°C 9726°C 20°C - 100% 0.23kPa
23:00
18°C 9726°C 19°C - 100% 0.21kPa
Sun, Aug 23 Sunrise 05:58 Sunset 19:28
24:00
18°C 9726°C 19°C - 100% 0.22kPa
01:00
18°C 9726°C 19°C - 100% 0.21kPa
02:00
18°C 9726°C 19°C - 94% 0.23kPa
03:00
18°C 9726°C 19°C - 99% 0.22kPa
04:00
18°C 9726°C 19°C - 100% 0.23kPa
05:00
18°C 9726°C 19°C - 100% 0.22kPa
06:00
18°C 9726°C 19°C - 100% 0.18kPa
07:00
18°C 9726°C 19°C - 100% 0.09kPa
08:00
19°C 9726°C 20°C - 100% 0.07kPa
09:00
20°C 9726°C 21°C - 100% 0.2kPa
10:00
20°C 9726°C 22°C - 100% 0.32kPa
11:00
20°C 9726°C 23°C - 100% 0.47kPa
12:00
21°C 9726°C 24°C - 100% 0.6kPa
13:00
21°C 9726°C 25°C - 100% 0.79kPa
14:00
20°C 9726°C 25°C - 100% 0.82kPa
15:00
21°C 9726°C 26°C - 100% 0.9kPa
16:00
21°C 9726°C 25°C - 100% 0.72kPa
17:00
21°C 9726°C 25°C - 100% 0.63kPa
18:00
22°C 9726°C 24°C - 100% 0.46kPa
19:00
22°C 9726°C 24°C - 100% 0.32kPa
20:00
22°C 9726°C 23°C - 100% 0.16kPa
21:00
22°C 9726°C 23°C - 100% 0.2kPa
22:00
21°C 9726°C 23°C - 100% 0.32kPa
23:00
21°C 9726°C 23°C - 90% 0.4kPa
Mon, Aug 24 Sunrise 05:59 Sunset 19:26
24:00
21°C 9726°C 23°C - 100% 0.36kPa
01:00
21°C 9726°C 22°C - 100% 0.22kPa
02:00
21°C 9726°C 22°C - 19% 0.15kPa
03:00
20°C 9726°C 21°C - 100% 0.15kPa
04:00
20°C 9726°C 22°C - 93% 0.28kPa
05:00
18°C 9726°C 21°C - 96% 0.38kPa
06:00
17°C 9726°C 20°C - 0% 0.46kPa
07:00
17°C 9726°C 21°C - 3% 0.51kPa
08:00
17°C 9726°C 23°C - 0% 0.86kPa
09:00
16°C 9726°C 24°C - 0% 1.3kPa
10:00
14°C 9726°C 25°C - 14% 1.6kPa
11:00
13°C 9726°C 25°C - 0% 1.8kPa
12:00
12°C 9726°C 26°C - 5% 1.9kPa
13:00
11°C 9726°C 26°C - 68% 1.9kPa
14:00
11°C 9726°C 26°C - 0% 1.9kPa
15:00
12°C 9726°C 26°C - 0% 1.9kPa
16:00
12°C 9726°C 25°C - 0% 1.8kPa
17:00
13°C 9726°C 25°C - 0% 1.6kPa
18:00
14°C 9726°C 24°C - 0% 1.3kPa
19:00
14°C 9726°C 22°C - 0% 1.1kPa
20:00
15°C 9726°C 22°C - 0% 0.93kPa
21:00
15°C 9726°C 22°C - 0% 0.9kPa
22:00
15°C 9726°C 22°C - 0% 0.87kPa
23:00
15°C 9726°C 22°C - 0% 0.85kPa
Tue, Aug 25 Sunrise 06:00 Sunset 19:25
24:00
15°C 9726°C 21°C - 0% 0.86kPa
01:00
14°C 9726°C 21°C - 0% 0.87kPa
02:00
14°C 9726°C 21°C - 0% 0.88kPa
03:00
14°C 9726°C 21°C - 2% 0.9kPa
04:00
15°C 9726°C 22°C - 3% 0.91kPa
05:00
15°C 9726°C 22°C - 5% 0.93kPa
06:00
16°C 9726°C 22°C - 3% 0.91kPa
07:00
16°C 9726°C 22°C - 2% 0.9kPa
08:00
16°C 9726°C 22°C - 0% 0.89kPa
09:00
16°C 9726°C 22°C - 2% 0.87kPa
10:00
16°C 9726°C 22°C - 5% 0.85kPa
11:00
17°C 9726°C 23°C - 7% 0.84kPa
12:00
17°C 9726°C 23°C - 25% 0.84kPa
13:00
17°C 9726°C 23°C - 43% 0.84kPa
14:00
17°C 9726°C 22°C - 61% 0.84kPa
15:00
16°C 9726°C 22°C - 42% 0.85kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

Forecast generated

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