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Satellite view of Cold Brook Reservoir

Cold Brook Reservoir

Reservoir

Cold water — serious cold-shock risk today

Cold water

Cold water — serious cold-shock risk today: water temperature is 57°F, cold enough to cause cold-water shock on sudden immersion.

  • Water temperature is 57°F, cold enough to cause cold-water shock on sudden immersion.
  • Flow is within the normal range (25th–75th percentile) for Aug 22 (median 60 ft³/s over 94 years).
Cold waterCool today

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Cold water — serious cold-shock risk today

Cold water

Cold water — serious cold-shock risk today: water temperature is 57°F, cold enough to cause cold-water shock on sudden immersion.

  • Water temperature is 57°F, cold enough to cause cold-water shock on sudden immersion. USGS gauge 01192500, as of Aug 22, 5:30 AM gauge-local time
  • Flow is within the normal range (25th–75th percentile) for Aug 22 (median 60 ft³/s over 94 years). USGS daily streamflow statistics, as of Aug 22, 5:30 AM gauge-local time
Water temp
57°F
14°C
Streamflow
73 ft³/s
discharge
Gage height
2.15 ft
water level

Flow is normal for this date — within the normal range (25th–75th percentile) for Aug 22 (median 60 ft³/s over 94 years).

No official beach-advisory feed for Connecticut yet — follow posted signs and local guidance.

Live, provisional data from USGS gauge HOCKANUM RIVER NEAR EAST HARTFORD, CT (8.1 mi away), as of Aug 22, 5:30 AM gauge-local time.

Weather at Cold Brook Reservoir

H: 72° L: 63°
Overcast
Overcast
65°
|
Feels like 66°
Precipitation
50%
Humidity
86%
Wind
5 mph
UV Index
0
Water Conditions:
🥶Too cold for most swimmers
12 AM
Overcast
67°
3 AM
Overcast
66°
6 AM
Overcast
64°
9 AM
Overcast
68°
12 PM
Overcast
69°
3 PM
Patchy rain nearby
72°
6 PM
Mist
65°
9 PM
Fog
63°

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Frequently asked questions

Where is Cold Brook Reservoir?
Cold Brook Reservoir is a reservoir in Connecticut.
What is the water temperature at Cold Brook Reservoir?
As of August 22, 2026, the water temperature at Cold Brook Reservoir in Connecticut is 57°F (14°C), measured by USGS gauge 01192500, 8.1 miles away.
Can you swim at Cold Brook Reservoir?
Cold water — serious cold-shock risk today: water temperature is 57°F, cold enough to cause cold-water shock on sudden immersion. Checked August 22, 2026.

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🏞️ Lakes Tips:
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Location & Contact

Connecticut

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