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Rule Morning Frost

Morning Frost Forecast for Bar Harbor, New England, USA

Bar Harbor, Maine, United States

Bar Harbor provides access to Acadia's granite shoreline, rounded mountains, working harbor, and lighthouses for strong land-and-sea layers.

Currently

Real-time conditions
Soil Temperature18.7°C
Dew Point14.3°C (moderate dew point)
Wind Speed2.5m/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 Speed97% 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 Bar Harbor.

Explore Morning Frost conditions across New England, USA →

Recorded match history

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

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
19
recorded matching windows · 64% average confidence
Most frequent recorded start hour

05:00 local time, shared by 7 of 19 matches recorded in the last 365 days.

Most represented month

February, with 12 of 19 matches recorded in the last 365 days.

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%1.6m/s
01:000%1.6m/s
02:000%1.7m/s
03:000%2m/s
04:000%1.9m/s
05:000%2m/s
06:000%2.4m/s
07:000%2m/s
08:000%2.6m/s
09:000%2.8m/s
10:000%3.5m/s
11:000%4m/s
12:000%4.3m/s
13:000%4m/s
14:000%3.5m/s
15:000%3.2m/s
16:000%2.5m/s
17:000%2.4m/s
18:000%2m/s
19:000%2.6m/s
20:000%2.9m/s
21:000%3m/s
22:000%2.9m/s
23:000%2.9m/s
Sun, Aug 23
24:000%3.3m/s
01:000%3m/s
02:000%2.6m/s
03:000%2.3m/s
04:000%2.2m/s
05:000%2.3m/s
06:000%2.1m/s
07:000%1.9m/s
08:000%2m/s
09:000%2.2m/s
10:000%2.4m/s
11:000%3.8m/s
12:000%2.5m/s
13:000%2.7m/s
14:000%2.6m/s
15:000%2.9m/s
16:000%3.3m/s
17:000%2.7m/s
18:000%2.3m/s
19:000%2m/s
20:000%1.8m/s
21:000%1.6m/s
22:000%1.5m/s
23:000%1.5m/s
Mon, Aug 24
24:000%1.4m/s
01:000%1.8m/s
02:000%1.3m/s
03:000%2.1m/s
04:000%1.8m/s
05:000%2m/s
06:000%1.9m/s
07:000%1.7m/s
08:000%2m/s
09:000%2.2m/s
10:000%2.3m/s
11:000%2.4m/s
12:000%3.6m/s
13:000%4.5m/s
14:000%4.8m/s
15:000%5.4m/s
16:000%4.8m/s
17:000%4.6m/s
18:000%3.6m/s
19:000%2.7m/s
20:000%2.1m/s
21:000%2m/s
22:000%1.8m/s
23:000%1.6m/s
Tue, Aug 25
24:000%2.1m/s
01:000%2.6m/s
02:000%3.1m/s
03:000%3.7m/s
04:000%4.3m/s
05:000%5m/s
06:000%5.3m/s
07:000%5.5m/s
08:000%5.8m/s
09:000%5.6m/s
10:000%5.4m/s
11:000%5.2m/s
12:000%4.3m/s
13:000%3.3m/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
Sat, Aug 22 Sunrise 05:44 Sunset 19:26
16:00
14°C 19°C 18°C - 100% 0.49kPa
17:00
15°C 19°C 18°C - 100% 0.34kPa
18:00
15°C 19°C 17°C - 100% 0.3kPa
19:00
15°C 19°C 17°C - 100% 0.21kPa
20:00
15°C 18°C 17°C - 100% 0.13kPa
21:00
16°C 18°C 16°C - 100% 0.09kPa
22:00
16°C 18°C 16°C - 100% 0.06kPa
23:00
16°C 18°C 17°C - 100% 0.04kPa
Sun, Aug 23 Sunrise 05:45 Sunset 19:24
24:00
16°C 18°C 17°C - 100% 0.03kPa
01:00
16°C 18°C 17°C - 100% 0.02kPa
02:00
16°C 18°C 16°C - 100% 0.02kPa
03:00
16°C 18°C 16°C - 100% 0.02kPa
04:00
16°C 18°C 16°C - 100% 0.02kPa
05:00
16°C 18°C 16°C - 100% 0.02kPa
06:00
16°C 18°C 16°C - 100% 0.02kPa
07:00
16°C 18°C 16°C - 100% 0.02kPa
08:00
16°C 18°C 16°C - 100% 0.03kPa
09:00
17°C 18°C 17°C - 100% 0.05kPa
10:00
17°C 18°C 19°C - 86% 0.14kPa
11:00
18°C 18°C 21°C - 100% 0.43kPa
12:00
18°C 18°C 19°C - 100% 0.11kPa
13:00
18°C 18°C 19°C - 100% 0.19kPa
14:00
18°C 18°C 20°C - 100% 0.29kPa
15:00
18°C 18°C 21°C - 93% 0.45kPa
16:00
18°C 18°C 21°C - 99% 0.46kPa
17:00
18°C 18°C 21°C - 100% 0.32kPa
18:00
18°C 18°C 19°C - 100% 0.16kPa
19:00
18°C 18°C 18°C - 100% 0.05kPa
20:00
17°C 18°C 17°C - 100% 0.03kPa
21:00
17°C 18°C 17°C - 100% 0.03kPa
22:00
17°C 18°C 17°C - 100% 0.03kPa
23:00
17°C 18°C 17°C - 100% 0.03kPa
Mon, Aug 24 Sunrise 05:46 Sunset 19:22
24:00
17°C 18°C 17°C - 100% 0.02kPa
01:00
17°C 18°C 17°C - 100% 0.01kPa
02:00
17°C 18°C 17°C - 100% 0.01kPa
03:00
17°C 18°C 17°C - 100% 0.01kPa
04:00
17°C 18°C 17°C - 100% 0.01kPa
05:00
16°C 18°C 16°C - 100% 0.01kPa
06:00
16°C 18°C 16°C - 100% 0.01kPa
07:00
17°C 18°C 17°C - 100% 0.01kPa
08:00
17°C 18°C 17°C - 100% 0.01kPa
09:00
17°C 18°C 18°C - 100% 0.03kPa
10:00
18°C 18°C 18°C - 100% 0.05kPa
11:00
18°C 18°C 19°C - 100% 0.14kPa
12:00
18°C 18°C 22°C - 100% 0.64kPa
13:00
17°C 18°C 23°C - 100% 0.83kPa
14:00
17°C 18°C 23°C - 99% 0.96kPa
15:00
15°C 19°C 22°C - 99% 0.99kPa
16:00
15°C 19°C 22°C - 98% 0.93kPa
17:00
14°C 19°C 21°C - 45% 0.88kPa
18:00
14°C 19°C 19°C - 87% 0.62kPa
19:00
14°C 19°C 17°C - 1% 0.38kPa
20:00
13°C 19°C 15°C - 0% 0.23kPa
21:00
12°C 18°C 15°C - 0% 0.26kPa
22:00
12°C 17°C 14°C - 0% 0.29kPa
23:00
11°C 16°C 14°C - 0% 0.31kPa
Tue, Aug 25 Sunrise 05:47 Sunset 19:21
24:00
11°C 16°C 15°C - 2% 0.41kPa
01:00
11°C 16°C 17°C - 3% 0.53kPa
02:00
12°C 16°C 18°C - 5% 0.67kPa
03:00
12°C 16°C 19°C - 12% 0.76kPa
04:00
12°C 16°C 19°C - 19% 0.86kPa
05:00
12°C 17°C 20°C - 26% 0.97kPa
06:00
12°C 17°C 20°C - 47% 0.91kPa
07:00
12°C 17°C 20°C - 69% 0.84kPa
08:00
13°C 17°C 19°C - 91% 0.78kPa
09:00
13°C 17°C 19°C - 64% 0.75kPa
10:00
13°C 17°C 19°C - 38% 0.73kPa
11:00
13°C 17°C 19°C - 11% 0.71kPa
12:00
14°C 17°C 18°C - 39% 0.47kPa
13:00
14°C 17°C 16°C - 66% 0.26kPa
14:00
14°C 17°C 15°C - 94% 0.08kPa
15:00
14°C 17°C 14°C - 64% 0.07kPa
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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