JMR Quarry PDRA
JMR Quarry, also known as Blanch Quarry, is an exceptional diving spot in Caswell County, North Carolina, United States. To experience the wonders of this dive site, simply join the "PDRA" or accompany a PDRA member as a guest. With 24/7/365 access granted by a key, you can explore the quarry anytime. Remember to bring a dive buddy, as solo diving is not permitted here.
Diving in JMR Quarry offers a captivating underwater world filled with various aquatic species such as paddlefish, catfish, bass, and more. If you visit during late summer or early fall, you may even catch a glimpse of freshwater jellyfish gracefully floating beneath the water's surface.
With a visibility of 6 meters and a maximum depth of 17 meters, JMR Quarry caters to divers of all levels, from beginners to advanced. Indulge in the beauty of this United States dive site and uncover the treasures hidden below.
Diving in JMR Quarry offers a captivating underwater world filled with various aquatic species such as paddlefish, catfish, bass, and more. If you visit during late summer or early fall, you may even catch a glimpse of freshwater jellyfish gracefully floating beneath the water's surface.
With a visibility of 6 meters and a maximum depth of 17 meters, JMR Quarry caters to divers of all levels, from beginners to advanced. Indulge in the beauty of this United States dive site and uncover the treasures hidden below.
Diving Conditions Score for JMR Quarry PDRA
6
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for JMR Quarry PDRA
Depth
17m
Visibility
6m
Experience Level
beginner
advanced
Weather Conditions for JMR Quarry PDRA
Wave Height
1m
Wind Speed
12.7 m/s
Water Temp
18°C
Visibility
57.2km
Cloud Cover
0%
Wave Period
8s
Air Temperature
23.7°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for JMR Quarry PDRA
Alpha
Dive Score Chart for JMR Quarry PDRA
Best time to dive: 11:00 with score 7.547833333333333/10. Water conditions: Waves 1m, Wind 4.4 m/s.Best night dive time: 5:00 with score 6.8533333333333335/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at JMR Quarry PDRA: 06:00
Sunset at JMR Quarry PDRA: 18:00
Optimal diving conditions at JMR Quarry PDRA are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.
Best Overall
11:00Score: 7.5/10
Waves: 1m (8s), Wind: 4.4 m/s
Best Night
5:00Score: 6.9/10
Waves: 1m, Wind: 6.3 m/s
Seasonal Analysis for JMR Quarry PDRAAlpha
Historical patterns and best seasons for diving at JMR Quarry PDRA
The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.
Monthly Dive Score Analysis - Seasonal Diving Conditions
Higher values indicate better diving conditions
Seasonal DiveScore Chart
This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.
Higher values indicate better diving conditions
Best Season for JMR Quarry PDRA
Winter
Avg. Score: 8.7/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for JMR Quarry PDRA
January
Score: 8.9
December
Score: 8.8
February
Score: 8.5
Ideal Conditions for JMR Quarry PDRA
Water Temp
26.3°C / 79.3°F
July
Visibility
17.8m / 58.4ft
December
Wave Height
0.5m / 1.6ft
December
Wave Period
8.0s
January
Seasonal Insights for JMR Quarry PDRA
JMR Quarry PDRA shows typical northern hemisphere patterns with July being the warmest month (26.3°C) and January the coldest (-1.1°C). The calmest conditions typically occur in December with average wave heights of 0.5m and wave periods of 8.0s. The most comfortable wave conditions are in December with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). January is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during December to February, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.
Last updated: 1 min. ago - Jun 20, 2026
Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.
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