Rule
Morning Frost
Morning Frost Forecast for Bretton Woods, New England, USA
Bretton Woods, New Hampshire, United States
Bretton Woods faces the Presidential Range across an open valley, where the Mount Washington Hotel and forested ridges provide scale and contrast.
2 matching opportunities in the 14-day forecast.
Hourly forecast scores
Forecast valid from Oct 7, 2026, 11:00 PM UTC (one hour; not an observation)Soil Temperature8.4°C
Dew Point1.1°C
Wind Speed2.5m/s
Cloud Cover100%
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in America/New_York
First upcoming window
Moderate Frost (radiative) at Sunrise
Bretton Woods
Tue, Oct 20 · 06:22–08:00 · 2h window
Low confidence
21%
❄️Frost Probability73%
Dew Point: -6.5°C (low dew point)
Wind Speed: 1.1m/s (calm conditions)
Cloud Cover: 7%
Moderate Frost (radiative)
Bretton Woods
Tue, Oct 20 · 08:00–08:37
❄️Frost Probability:84%
Low
72-hour requirements breakdown
When available, this detailed table covers only the stated 72-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in America/New_York.
Most common blockers
Ranked across the 95-hour forecast horizon, not the full opportunity period.
- Frost Probability96% of hours
- Wind Speed92% of hours
- Time Window88% of hours
0matching hours in the displayed 72-hour forecast
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, Oct 7 | |||
| Rule fails. 19:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.5m/s. Misses requirement |
| Rule fails. 20:00 | Time Window: No. Misses requirement | Frost Probability: 2.9%. Misses requirement | Wind Speed: 3.2m/s. Misses requirement |
| Rule fails. 21:00 | Time Window: No. Misses requirement | Frost Probability: 3%. Misses requirement | Wind Speed: 3.5m/s. Misses requirement |
| Rule fails. 22:00 | Time Window: No. Misses requirement | Frost Probability: 3.7%. Misses requirement | Wind Speed: 3.4m/s. Misses requirement |
| Rule fails. 23:00 | Time Window: No. Misses requirement | Frost Probability: 5%. Misses requirement | Wind Speed: 3.7m/s. Misses requirement |
| Thu, Oct 8 | |||
| Rule fails. 24:00 | Time Window: No. Misses requirement | Frost Probability: 4.8%. Misses requirement | Wind Speed: 3.6m/s. Misses requirement |
| Rule fails. 01:00 | Time Window: No. Misses requirement | Frost Probability: 4.4%. Misses requirement | Wind Speed: 3.8m/s. Misses requirement |
| Rule fails. 02:00 | Time Window: No. Misses requirement | Frost Probability: 5%. Misses requirement | Wind Speed: 3.8m/s. Misses requirement |
| Rule fails. 03:00 | Time Window: No. Misses requirement | Frost Probability: 3.1%. Misses requirement | Wind Speed: 3.2m/s. Misses requirement |
| Rule fails. 04:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.3m/s. Misses requirement |
| Rule fails. 05:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 3.1m/s. Misses requirement |
| Rule fails. 06:00 | Time Window: Yes. Meets requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.4m/s. Misses requirement |
| Rule fails. 07:00 | Time Window: Yes. Meets requirement | Frost Probability: 4.5%. Misses requirement | Wind Speed: 3m/s. Misses requirement |
| Rule fails. 08:00 | Time Window: Yes. Meets requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.7m/s. Misses requirement |
| Rule fails. 09:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 1.2m/s. Meets requirement |
| Rule fails. 10:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 5.2m/s. Misses requirement |
| Rule fails. 11:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 3m/s. Misses requirement |
| Rule fails. 12:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 5.1m/s. Misses requirement |
| Rule fails. 13:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.5m/s. Misses requirement |
| Rule fails. 14:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.9m/s. Misses requirement |
| Rule fails. 15:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 5.9m/s. Misses requirement |
| Rule fails. 16:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.1m/s. Misses requirement |
| Rule fails. 17:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 4.9m/s. Misses requirement |
| Rule fails. 18:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 4.6m/s. Misses requirement |
| Rule fails. 19:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 4m/s. Misses requirement |
| Rule fails. 20:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 1.5m/s. Meets requirement |
| Rule fails. 21:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 1.3m/s. Meets requirement |
| Rule fails. 22:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.2m/s. Misses requirement |
| Rule fails. 23:00 | Time Window: No. Misses requirement | Frost Probability: 3.7%. Misses requirement | Wind Speed: 2.4m/s. Misses requirement |
| Fri, Oct 9 | |||
| Rule fails. 24:00 | Time Window: No. Misses requirement | Frost Probability: 2.4%. Misses requirement | Wind Speed: 2m/s. Misses requirement |
| Rule fails. 01:00 | Time Window: No. Misses requirement | Frost Probability: 2.6%. Misses requirement | Wind Speed: 1.7m/s. Misses requirement |
| Rule fails. 02:00 | Time Window: No. Misses requirement | Frost Probability: 2.3%. Misses requirement | Wind Speed: 2.1m/s. Misses requirement |
| Rule fails. 03:00 | Time Window: No. Misses requirement | Frost Probability: 2.2%. Misses requirement | Wind Speed: 2m/s. Misses requirement |
| Rule fails. 04:00 | Time Window: No. Misses requirement | Frost Probability: 2.1%. Misses requirement | Wind Speed: 2.2m/s. Misses requirement |
| Rule fails. 05:00 | Time Window: No. Misses requirement | Frost Probability: 1.9%. Misses requirement | Wind Speed: 2.4m/s. Misses requirement |
| Rule fails. 06:00 | Time Window: Yes. Meets requirement | Frost Probability: 1.9%. Misses requirement | Wind Speed: 1.7m/s. Misses requirement |
| Rule fails. 07:00 | Time Window: Yes. Meets requirement | Frost Probability: 2.1%. Misses requirement | Wind Speed: 0.81m/s. Meets requirement |
| Rule fails. 08:00 | Time Window: Yes. Meets requirement | Frost Probability: 1.4%. Misses requirement | Wind Speed: 2.9m/s. Misses requirement |
| Rule fails. 09:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.5m/s. Misses requirement |
| Rule fails. 10:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.9m/s. Misses requirement |
| Rule fails. 11:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 7.4m/s. Misses requirement |
| Rule fails. 12:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.9m/s. Misses requirement |
| Rule fails. 13:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 5.8m/s. Misses requirement |
| Rule fails. 14:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 5.6m/s. Misses requirement |
| Rule fails. 15:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.2m/s. Misses requirement |
| Rule fails. 16:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.3m/s. Misses requirement |
| Rule fails. 17:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 6.2m/s. Misses requirement |
| Rule fails. 18:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 5.6m/s. Misses requirement |
| Rule fails. 19:00 | Time Window: No. Misses requirement | Frost Probability: 1.4%. Misses requirement | Wind Speed: 4.9m/s. Misses requirement |
| Rule fails. 20:00 | Time Window: No. Misses requirement | Frost Probability: 1.4%. Misses requirement | Wind Speed: 4.8m/s. Misses requirement |
| Rule fails. 21:00 | Time Window: No. Misses requirement | Frost Probability: 18%. Misses requirement | Wind Speed: 3.9m/s. Misses requirement |
| Rule fails. 22:00 | Time Window: No. Misses requirement | Frost Probability: 26%. Misses requirement | Wind Speed: 3.7m/s. Misses requirement |
| Rule fails. 23:00 | Time Window: No. Misses requirement | Frost Probability: 31%. Misses requirement | Wind Speed: 3.7m/s. Misses requirement |
| Sat, Oct 10 | |||
| Rule fails. 24:00 | Time Window: No. Misses requirement | Frost Probability: 31%. Misses requirement | Wind Speed: 3.5m/s. Misses requirement |
| Rule fails. 01:00 | Time Window: No. Misses requirement | Frost Probability: 29%. Misses requirement | Wind Speed: 3.9m/s. Misses requirement |
| Rule fails. 02:00 | Time Window: No. Misses requirement | Frost Probability: 39%. Misses requirement | Wind Speed: 3.4m/s. Misses requirement |
| Rule fails. 03:00 | Time Window: No. Misses requirement | Frost Probability: 38%. Misses requirement | Wind Speed: 3.4m/s. Misses requirement |
| Rule fails. 04:00 | Time Window: No. Misses requirement | Frost Probability: 52%. Misses requirement | Wind Speed: 3.3m/s. Misses requirement |
| Rule fails. 05:00 | Time Window: No. Misses requirement | Frost Probability: 60%. Meets requirement | Wind Speed: 2.9m/s. Misses requirement |
| Rule fails. 06:00 | Time Window: Yes. Meets requirement | Frost Probability: 62%. Meets requirement | Wind Speed: 2.6m/s. Misses requirement |
| Rule fails. 07:00 | Time Window: Yes. Meets requirement | Frost Probability: 62%. Meets requirement | Wind Speed: 2.5m/s. Misses requirement |
| Rule fails. 08:00 | Time Window: Yes. Meets requirement | Frost Probability: 44%. Misses requirement | Wind Speed: 2.6m/s. Misses requirement |
| Rule fails. 09:00 | Time Window: No. Misses requirement | Frost Probability: 46%. Misses requirement | Wind Speed: 3.2m/s. Misses requirement |
| Rule fails. 10:00 | Time Window: No. Misses requirement | Frost Probability: 4.9%. Misses requirement | Wind Speed: 3m/s. Misses requirement |
| Rule fails. 11:00 | Time Window: No. Misses requirement | Frost Probability: 4.7%. Misses requirement | Wind Speed: 3.4m/s. Misses requirement |
| Rule fails. 12:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 3.1m/s. Misses requirement |
| Rule fails. 13:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.8m/s. Misses requirement |
| Rule fails. 14:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.9m/s. Misses requirement |
| Rule fails. 15:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.6m/s. Misses requirement |
| Rule fails. 16:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 2.3m/s. Misses requirement |
| Rule fails. 17:00 | Time Window: No. Misses requirement | Frost Probability: 0%. Misses requirement | Wind Speed: 1.3m/s. Meets requirement |
| Rule fails. 18:00 | Time Window: No. Misses requirement | Frost Probability: 48%. Misses requirement | Wind Speed: 0.61m/s. Meets requirement |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).
Supporting forecast inputs
Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.
| Forecast time (America/New_York) | Dew Point | Surface Temperature | Temperature | Time Window | Total Cloud Coverage | Vapor Pressure Deficit |
|---|---|---|---|---|---|---|
| Wed, Oct 7, 2026Sunrise · Sunset | ||||||
| Night | 1.1°C | 8.4°C | 11°C | Unavailable | 100% | 0.69kPa |
| Night | 0.9°C | 7.7°C | 12°C | Unavailable | 100% | 0.7kPa |
| Night | 1.3°C | 7.1°C | 11°C | Unavailable | 100% | 0.67kPa |
| Night | 2°C | 7°C | 11°C | Unavailable | 45% | 0.62kPa |
| Night | 2.5°C | 6.8°C | 10°C | Unavailable | 0% | 0.53kPa |
| Thu, Oct 8, 2026Sunrise · Sunset | ||||||
| Night | 3°C | 6.9°C | 10°C | Unavailable | 11% | 0.48kPa |
| Night | 3.4°C | 6.7°C | 10°C | Unavailable | 29% | 0.48kPa |
| Night | 4.1°C | 6.9°C | 11°C | Unavailable | 5% | 0.46kPa |
| Night | 4.5°C | 7.8°C | 10°C | Unavailable | 100% | 0.42kPa |
| Night | 8.2°C | 8.1°C | 9.8°C | Unavailable | 100% | 0.12kPa |
| Night | 7.2°C | 8.6°C | 10°C | Unavailable | 100% | 0.21kPa |
| Night | 5.8°C | 8.1°C | 10°C | Unavailable | 100% | 0.31kPa |
| 5.3°C | 7.6°C | 9.1°C | Unavailable | 0% | 0.27kPa | |
| 6.8°C | 9.3°C | 9.9°C | Unavailable | 7% | 0.23kPa | |
| 8.5°C | 12°C | 11°C | Unavailable | 100% | 0.23kPa | |
| 9.8°C | 12°C | 13°C | Unavailable | 17% | 0.32kPa | |
| 9.2°C | 13°C | 12°C | Unavailable | 75% | 0.24kPa | |
| 8.9°C | 13°C | 14°C | Unavailable | 30% | 0.42kPa | |
| 6.3°C | 13°C | 14°C | Unavailable | 39% | 0.63kPa | |
| 4.9°C | 13°C | 13°C | Unavailable | 23% | 0.65kPa | |
| 4.7°C | 13°C | 13°C | Unavailable | 86% | 0.59kPa | |
| 4.1°C | 12°C | 13°C | Unavailable | 14% | 0.64kPa | |
| 4.2°C | 12°C | 12°C | Unavailable | 88% | 0.55kPa | |
| 2.9°C | 10°C | 9.8°C | Unavailable | 100% | 0.46kPa | |
| Night | 3.5°C | 9.6°C | 8.7°C | Unavailable | 1% | 0.34kPa |
| Night | 3.9°C | 9.4°C | 7.5°C | Unavailable | 0% | 0.23kPa |
| Night | 3.2°C | 9.2°C | 6.6°C | Unavailable | 0% | 0.2kPa |
| Night | 2.7°C | 8.7°C | 6.1°C | Unavailable | 10% | 0.2kPa |
| Night | 1.7°C | 7.5°C | 6°C | Unavailable | 100% | 0.24kPa |
| Fri, Oct 9, 2026Sunrise · Sunset | ||||||
| Night | 4.8°C | 7.1°C | 6.8°C | Unavailable | 100% | 0.13kPa |
| Night | 4.7°C | 7.4°C | 6.5°C | Unavailable | 100% | 0.12kPa |
| Night | 3.6°C | 7.2°C | 5.6°C | Unavailable | 94% | 0.12kPa |
| Night | 2.6°C | 6.2°C | 4.9°C | Unavailable | 100% | 0.13kPa |
| Night | 2°C | 6.5°C | 4.6°C | Unavailable | 97% | 0.14kPa |
| Night | 1.7°C | 6.5°C | 4.3°C | Unavailable | 100% | 0.14kPa |
| Night | 2.6°C | 6.3°C | 4.6°C | Unavailable | 100% | 0.11kPa |
| 3.1°C | 6.3°C | 5.4°C | Unavailable | 100% | 0.13kPa | |
| 4.2°C | 7.8°C | 5.9°C | Unavailable | 91% | 0.1kPa | |
| 4.2°C | 9.3°C | 6.9°C | Unavailable | 44% | 0.17kPa | |
| 3.8°C | 9.3°C | 7.6°C | Unavailable | 100% | 0.24kPa | |
| 4.8°C | 9.9°C | 7.2°C | Unavailable | 100% | 0.15kPa | |
| 4.5°C | 11°C | 7.4°C | Unavailable | 76% | 0.19kPa | |
| 4.4°C | 12°C | 7.6°C | Unavailable | 70% | 0.21kPa | |
| 4.7°C | 12°C | 6.5°C | Unavailable | 100% | 0.12kPa | |
| 4.6°C | 12°C | 6.8°C | Unavailable | 100% | 0.14kPa | |
| 4.1°C | 11°C | 6.6°C | Unavailable | 100% | 0.16kPa | |
| 3.7°C | 10°C | 5.9°C | Unavailable | 100% | 0.13kPa | |
| 3.2°C | 8.8°C | 4.7°C | Unavailable | 84% | 0.09kPa | |
| Night | 2.6°C | 7.8°C | 4.2°C | Unavailable | 100% | 0.09kPa |
| Night | 1.8°C | 7°C | 3.6°C | Unavailable | 89% | 0.09kPa |
| Night | 1.3°C | 5.9°C | 2.8°C | Unavailable | 93% | 0.07kPa |
| Night | 0.8°C | 5.2°C | 2°C | Unavailable | 28% | 0.06kPa |
| Night | 0.7°C | 4.9°C | 1.4°C | Unavailable | 8% | 0.03kPa |
| Sat, Oct 10, 2026Sunrise · Sunset | ||||||
| Night | 0.4°C | 4.8°C | 1°C | Unavailable | 9% | 0.03kPa |
| Night | 0.3°C | 3.2°C | 0.9°C | Unavailable | 14% | 0.03kPa |
| Night | -0.2°C | 2.6°C | 0.5°C | Unavailable | 7% | 0.03kPa |
| Night | -0.5°C | 2.1°C | 0.4°C | Unavailable | 7% | 0.04kPa |
| Night | -0.5°C | 1.6°C | 0.5°C | Unavailable | 6% | 0.04kPa |
| Night | -0.6°C | 1°C | 0.4°C | Unavailable | 6% | 0.04kPa |
| Night | -0.7°C | 0.5°C | 0.3°C | Unavailable | 5% | 0.04kPa |
| -0.8°C | 0.1°C | 0.2°C | Unavailable | 5% | 0.04kPa | |
| -0.3°C | 2.4°C | 2°C | Unavailable | 5% | 0.11kPa | |
| -0.9°C | 4.8°C | 4.3°C | Unavailable | 5% | 0.26kPa | |
| -1.4°C | 6.5°C | 6.2°C | Unavailable | 5% | 0.4kPa | |
| -1.1°C | 8°C | 7.6°C | Unavailable | 0% | 0.48kPa | |
| -0.6°C | 9.3°C | 8.7°C | Unavailable | 0% | 0.54kPa | |
| -0.1°C | 10°C | 10°C | Unavailable | 0% | 0.63kPa | |
| 0.4°C | 10°C | 11°C | Unavailable | 0% | 0.68kPa | |
| 0.8°C | 10°C | 11°C | Unavailable | 0% | 0.7kPa | |
| 1.2°C | 9.5°C | 12°C | Unavailable | 0% | 0.69kPa | |
| 2.3°C | 8.3°C | 11°C | Unavailable | 17% | 0.57kPa | |
| 2°C | 5.5°C | 7.1°C | Unavailable | 16% | 0.3kPa | |
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 above show how those signals apply at Bretton Woods.
Explore Morning Frost conditions across New England, USA →Recorded match history
Completed PhotoWeather forecast matches recorded for this exact rule at Bretton Woods during the last 365 days.
Last 30 days
1
recorded matching window · 64% average confidence
Last 90 days
1
recorded matching window · 64% average confidence
Last 365 days
19
recorded matching windows · 66% average confidence
Most frequent recorded start hour
06:00 local time, shared by 7 of 19 matches recorded in the last 365 days.
Most represented month
February, with 10 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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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.
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